GASCO - UtahGASCO Energy September 1, 2006 Bureau of Land Management Vernal Field Office 170 S. 500...

GASCOEnergy

September 1, 2006

Bureau of Land ManagementVernal Field Office170 S. 500 E.Vernal, UT 84078

Attn: Minerals Departrnent

Re: All WellsUintah and Duchesne. Counties,Utah

Ladies and Gentlemen:

This letter is to inform you that Permitco, Inc. and Shon McKinnon are authorized to actas Agent and to sign or retrieve documents on behalf of Gasco Production Company, awholly owned subsidiary of Gasco Energy, Inc. when necessary for filing county, stateand federal permits including Onshore OrderNo. 1, Right of Way applications, etc., forthe above mentioned wells.

It should be understood that Permitco, Inc. and Shon McKinnon are acting as Agent onlyin those matter stated above and are not responsible for drilling, completion, productionor coinpliance with regulations.

Gasco Production Company agrees to accept full responsibility for operations conductedin order to drill, complete and produce the above mentioned wells.

Y y,

Mark A. EricksonPresident and CEO

GASCOEnergy, Inc.8 inverness Drive East, Suite 100 Tel: (303) 483-0044 Email: [email protected]

Englewood, CO 80112-5625 Fax: (303) 483-0011 Website: www.gascoenergy.com AMEX:

GASCOEnergy

September 1, 2006

Bureau of Land ManagementVernal Field Office170 S. 500 E.Vernal, UT 84078

Attn: Minerals Departrnent

Re: All WellsUintah and Duchesne. Counties,Utah


This letter is to inform you that Permitco, Inc. and Shon McKinnon are authorized to actas Agent and to sign or retrieve documents on behalf of Gasco Production Company, awholly owned subsidiary of Gasco Energy, Inc. when necessary for filing county, stateand federal permits including Onshore OrderNo. 1, Right of Way applications, etc., forthe above mentioned wells.

It should be understood that Permitco, Inc. and Shon McKinnon are acting as Agent onlyin those matter stated above and are not responsible for drilling, completion, productionor coinpliance with regulations.

Gasco Production Company agrees to accept full responsibility for operations conductedin order to drill, complete and produce the above mentioned wells.

Y y,

Mark A. EricksonPresident and CEO

GASCOEnergy, Inc.8 inverness Drive East, Suite 100 Tel: (303) 483-0044 Email: [email protected]

Englewood, CO 80112-5625 Fax: (303) 483-0011 Website: www.gascoenergy.com AMEX:

STATE OF UTAH FORM3

DEPARTMENÏOF NATURAL RESOURCES

DIVISION OF OIL, GAS AND MINING AME ED REP RT

5. MINERAL LEASE NO.: 6. SURFACE:

APPLICATION I¯ORPERMIT TO DRILL UTU-75672 Bl.M7. IF IND1AN,ALLOTTEE OR TRIBE NAME:

1A. TYPEOFWORK DRILL Ë REENTER O DEEPEN O. N/A

B. TYPEOF WELL: OILEl GAS[Ï\ OTHER SINGLE ONEEl MULTIPLEZONE I a. UNIT or CA AGRIBEMENTNAME:

WilkinRidge2. NAME OF OPERATOR: 9. WELL NAMEand NUMBER:

GascoProduction Company WilkinRidgeFederal#12-5-11·173. ADDRESS ÖF OPERATOR PHONE NUMBER: 10. FIELD AND PÖOL, OR W DCAT:

8 Inverness DriveEast, Suite100,Englewood,CO80112 303:483-0044 36104. LOCATION OF WELL (FOOTAGES) x 11. QTRIOTR, SECTION, TOWNSHIP,RANGE

MERIDIAN:

AT SURFACE: ONU 1876'FNLand460' FWL Sec.5, T118-R17E

AT PROPOSED PRODUCING ZONE: SWNW

14. DISTANCE IN MILESAND DIRIlCTION FROM NEARE$T TOWNOR POST OFFICE: 12. COUNTY: 13. STATE:

Approximately26.5milessouthwestofMyton,UT..

Duchesne UTAH15. ISTANCE TO NEAREST PROPERTY OR LEASE LINE (FEET) 10. NUMBER OF ACRESIN LEASE: 17. NUMBER OF ACRESASSIGNED TO THISWELL:

460' 2532.56 40 Acres,SWNW18. DISTANCE TO NEAREST WELL (DRILLING, 00MPLEÏED, OR 19. PROPOSED DEPTH: 20. BOND DESCRIPTION:

APPLIED I"OR) ON THIS LEASE (FEET):

None 12,715' Bond No.UT-123321. ELEVATIONS (SHOW WHETHER DE, RT, GR, ETO.): 22. APPROXIMATE DATE WORKWILL START: 23. ESTIMATED DURATION:

6323' GL ASAP 35 Days

24 PROPOSEDCASINGANDCEMENTINGPROGRAMSIZE OF HOLE CASINGSlZE, GRADE, AND WEIGHT PER FOOT SETTINGDEPTH CEMENT TYPE,QUANTITY, YlELD, AND SLURRY WEIGHT

17-1/2" 13-3/8", H-40,48# 200' 200sx PtemiumType5, 15.6 ppg, 1.18 yield12-1/4" 8-518",J-55, 32# 3,400' 563sxHi-l.ift,11ppg,3.91yield+ 185sx 10-2RFC,14.2ppg,1.63yield7-7/8" 4-1/2",P-110,13.5# 12,71¶ 523sx Hi-Lift,11.5ppg, 3:05yield &1263sx 50/50Poz, 14.1ppg,1.28yield

CONTIDENflALTIGHTH25. .

ATTACHMENTS OLEVERIËY THE FOLLOWING ARE ATTACHED IN ACCÓRDANCE WITH THE UTAH 0IL AND GAS CONSERVATION GENERAL RULES:

WELL PLAT OR MAP PREPARED BY LICENSED SURVEYOR OR ENGINEER COMPLETE DRILLINGPROGRAM

O EVIDENCE OF DIVISION OF WATERRIGHTS APPROVAL FOR ÚSE OF WATER FORM 5, IF OPERATOR IS PERSON OR COMPANY OTHER THAN TÏIE LEASE OWNER

AGENT: P9tmÍÍÛO ÏnC. AGENT'SPHONE NO.: 303-857-9999

NAME (PLEASE PR ) VenOSsa Langmacher TITLE Ag001ÍOr Û8SCO Pf0duction Company

SlÓNAÌURE DATE ug 8, 2001

(This space for State use only) Approvedby theUtahDivisionof

STATE OF UTAH FORM3

DEPARTMENÏOF NATURAL RESOURCES

DIVISION OF OIL, GAS AND MINING AME ED REP RT

5. MINERAL LEASE NO.: 6. SURFACE:

APPLICATION I¯ORPERMIT TO DRILL UTU-75672 Bl.M7. IF IND1AN,ALLOTTEE OR TRIBE NAME:

1A. TYPEOFWORK DRILL Ë REENTER O DEEPEN O. N/A

B. TYPEOF WELL: OILEl GAS[Ï\ OTHER SINGLE ONEEl MULTIPLEZONE I a. UNIT or CA AGRIBEMENTNAME:

WilkinRidge2. NAME OF OPERATOR: 9. WELL NAMEand NUMBER:

GascoProduction Company WilkinRidgeFederal#12-5-11·173. ADDRESS ÖF OPERATOR PHONE NUMBER: 10. FIELD AND PÖOL, OR W DCAT:

8 Inverness DriveEast, Suite100,Englewood,CO80112 303:483-0044 36104. LOCATION OF WELL (FOOTAGES) x 11. QTRIOTR, SECTION, TOWNSHIP,RANGE

MERIDIAN:

AT SURFACE: ONU 1876'FNLand460' FWL Sec.5, T118-R17E

AT PROPOSED PRODUCING ZONE: SWNW

14. DISTANCE IN MILESAND DIRIlCTION FROM NEARE$T TOWNOR POST OFFICE: 12. COUNTY: 13. STATE:

Approximately26.5milessouthwestofMyton,UT..

Duchesne UTAH15. ISTANCE TO NEAREST PROPERTY OR LEASE LINE (FEET) 10. NUMBER OF ACRESIN LEASE: 17. NUMBER OF ACRESASSIGNED TO THISWELL:

460' 2532.56 40 Acres,SWNW18. DISTANCE TO NEAREST WELL (DRILLING, 00MPLEÏED, OR 19. PROPOSED DEPTH: 20. BOND DESCRIPTION:

APPLIED I"OR) ON THIS LEASE (FEET):

None 12,715' Bond No.UT-123321. ELEVATIONS (SHOW WHETHER DE, RT, GR, ETO.): 22. APPROXIMATE DATE WORKWILL START: 23. ESTIMATED DURATION:

6323' GL ASAP 35 Days

24 PROPOSEDCASINGANDCEMENTINGPROGRAMSIZE OF HOLE CASINGSlZE, GRADE, AND WEIGHT PER FOOT SETTINGDEPTH CEMENT TYPE,QUANTITY, YlELD, AND SLURRY WEIGHT

17-1/2" 13-3/8", H-40,48# 200' 200sx PtemiumType5, 15.6 ppg, 1.18 yield12-1/4" 8-518",J-55, 32# 3,400' 563sxHi-l.ift,11ppg,3.91yield+ 185sx 10-2RFC,14.2ppg,1.63yield7-7/8" 4-1/2",P-110,13.5# 12,71¶ 523sx Hi-Lift,11.5ppg, 3:05yield &1263sx 50/50Poz, 14.1ppg,1.28yield

CONTIDENflALTIGHTH25. .

ATTACHMENTS OLEVERIËY THE FOLLOWING ARE ATTACHED IN ACCÓRDANCE WITH THE UTAH 0IL AND GAS CONSERVATION GENERAL RULES:

WELL PLAT OR MAP PREPARED BY LICENSED SURVEYOR OR ENGINEER COMPLETE DRILLINGPROGRAM

O EVIDENCE OF DIVISION OF WATERRIGHTS APPROVAL FOR ÚSE OF WATER FORM 5, IF OPERATOR IS PERSON OR COMPANY OTHER THAN TÏIE LEASE OWNER

AGENT: P9tmÍÍÛO ÏnC. AGENT'SPHONE NO.: 303-857-9999

NAME (PLEASE PR ) VenOSsa Langmacher TITLE Ag001ÍOr Û8SCO Pf0duction Company

SlÓNAÌURE DATE ug 8, 2001

(This space for State use only) Approvedby theUtahDivisionof

GASCO PRODUCTION COMPANYTiiS Ri?'E S.L B.&M **" '°°°i°n, WILKINRIDGEFEDERAL //12-5-11--17,c.c. , e • ' located as shown in the SW 1/4 NW 1/4 of Section 5,1909 Brass 1909 Brass

-svas.c27 ca,t.o'sign. 94 co;7.s'niga, T11S, R17E, S.L.B.&M., Duchesne County, Utah.1909 Brom CoP, P//e Of Stones O I Pile Of Stonesr.o"'

BASIS OF ELEVATIONNB9°57'04 Y NB9°55'5072640.62' (Meas.) T10S N8755'50'T - 2639. JO' (Meas.) tosz 2o' (geos.)

MS = ' SPOT ELEVATIONNEAR A 2-TRACK IN THE SW 1/4 OF SECTION1055.2 Brah,s Cap 1p3'1 Ó9Brass 20, T10S, R17E, S.L.B.&M. TAKEN FROM THE WILKINRIDGEStones Cap 20' H/gh, QUADRANGLE,UTAH, DUCHESNE COUNTY, 7.5 MINUTE QUAD.Rite of stones (TOPOGRAPHIC MAP) PUBLISHED BY THE UNITED STATES

DEPARTMENT OF THE INTERIOR, GEOLOGICALSURVEY. SAIDLOT 4 LOT 3 LOT 2 LOT 1 ELEVATIONIS MARKED AS BEING6275 FEET.BASIS OF BEARINGS

BASIS OF BEARINGS IS A G.P.S. OBSERVATION.

W/LK/NR/DGE EEDERAL/12-5-11-17460' Elev. Ungraded Ûround = 6123'

1909 Ðrass Cap 1909 Brass Cap1.0' High 22' High, Pileof Stones

SCALE

THIS IS TO CERTIFYTHAT THE ABO OMFIELDNOTES OF ACTUALSURVEYS ORSUPERVISIONAND THAT THESAM A D CORR THBEST OF MY KNOWLEDGEAND BE • Å g

RE R LA VEYREGI A NO. 1613

1909 Brass Cap STATE \%1909 Brass CaP 1909 Brass Cap 1.5' High, Pile ?; 4Ê1.0' High 2.0' H/gh of StonesUINTAH ENGINEERING & LAND SURVEYINGS89°45'34"E

- 2669.71' (Meas.) NB9°20'58"E- 2622.48' (Meas.) 85 SOUTH 200 EAST - VERNAL, UTAH 84078

(435) 789-1017LEGEND. (AUToNOMOUS NAD 83)LATITUDE= 39°53'16.94"

(39.888039) SCALE DATE SURVEYED: DATE DRAWN:1 = 1000 08-01-06 08-04-06= 90 SYMBOL LONGITUDE= 110°02'36.71" (110.043531)

(AUTONOMOUS NAD 27) PARTY REFERENCES= PROPOSED WELL HEAD' LATITUDE= 39°53'17.07" (39.888075) J.W. T.B. L.K. G.L.O. PLATA = SECTIONCORNERS LOCATED. LONGITUDE= 110°02'34.17" (110.042825) WEATHER FILEHOT GASCO PRODUCTION

GASCO PRODUCTION COMPANYTiiS Ri?'E S.L B.&M **" '°°°i°n, WILKINRIDGEFEDERAL //12-5-11--17,c.c. , e • ' located as shown in the SW 1/4 NW 1/4 of Section 5,1909 Brass 1909 Brass

-svas.c27 ca,t.o'sign. 94 co;7.s'niga, T11S, R17E, S.L.B.&M., Duchesne County, Utah.1909 Brom CoP, P//e Of Stones O I Pile Of Stonesr.o"'

BASIS OF ELEVATIONNB9°57'04 Y NB9°55'5072640.62' (Meas.) T10S N8755'50'T - 2639. JO' (Meas.) tosz 2o' (geos.)

MS = ' SPOT ELEVATIONNEAR A 2-TRACK IN THE SW 1/4 OF SECTION1055.2 Brah,s Cap 1p3'1 Ó9Brass 20, T10S, R17E, S.L.B.&M. TAKEN FROM THE WILKINRIDGEStones Cap 20' H/gh, QUADRANGLE,UTAH, DUCHESNE COUNTY, 7.5 MINUTE QUAD.Rite of stones (TOPOGRAPHIC MAP) PUBLISHED BY THE UNITED STATES

DEPARTMENT OF THE INTERIOR, GEOLOGICALSURVEY. SAIDLOT 4 LOT 3 LOT 2 LOT 1 ELEVATIONIS MARKED AS BEING6275 FEET.BASIS OF BEARINGS

BASIS OF BEARINGS IS A G.P.S. OBSERVATION.

W/LK/NR/DGE EEDERAL/12-5-11-17460' Elev. Ungraded Ûround = 6123'

1909 Ðrass Cap 1909 Brass Cap1.0' High 22' High, Pileof Stones

SCALE

THIS IS TO CERTIFYTHAT THE ABO OMFIELDNOTES OF ACTUALSURVEYS ORSUPERVISIONAND THAT THESAM A D CORR THBEST OF MY KNOWLEDGEAND BE • Å g

RE R LA VEYREGI A NO. 1613

1909 Brass Cap STATE \%1909 Brass CaP 1909 Brass Cap 1.5' High, Pile ?; 4Ê1.0' High 2.0' H/gh of StonesUINTAH ENGINEERING & LAND SURVEYINGS89°45'34"E

- 2669.71' (Meas.) NB9°20'58"E- 2622.48' (Meas.) 85 SOUTH 200 EAST - VERNAL, UTAH 84078

(435) 789-1017LEGEND. (AUToNOMOUS NAD 83)LATITUDE= 39°53'16.94"

(39.888039) SCALE DATE SURVEYED: DATE DRAWN:1 = 1000 08-01-06 08-04-06= 90 SYMBOL LONGITUDE= 110°02'36.71" (110.043531)

(AUTONOMOUS NAD 27) PARTY REFERENCES= PROPOSED WELL HEAD' LATITUDE= 39°53'17.07" (39.888075) J.W. T.B. L.K. G.L.O. PLATA = SECTIONCORNERS LOCATED. LONGITUDE= 110°02'34.17" (110.042825) WEATHER FILEHOT GASCO PRODUCTION

ONSHONEORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal #12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S - R17E DRILLINGPROGRAMDuchesneCounty,Utah Page 1

ONSHOREOIL&GASORDERNO.1ApprovalofOperationsonOnshore

FederalandIndianOilandGasLeases

Allleaseand/orunitoperationswillbeconductedinsucha mannerthatfullcomplianceismadewithapplicablelaws,regulations(43CFR3100),OnshoreOilandGasOrderNo.1,andtheapprovedplanofoperations.Theoperatorisfullyresponsiblefortheactionsofhissubcontractors.Acopyoftheseconditionswillbe furnishedthefieldrepresentativetoinsurecompliance.

1. ESTIMATEDTOPSOFIMPORTANTGEOLOGlCMARKERS

Formation Depth Subsea

Wasatch 4,850' +1,525'

MesaVerde 8,985' -2,610'

Castlegate 11,525' -5,150'

Blackhawk 11,755' -5,380'

Aberdeen 12,415' -6,040'

T.D. 12,715' -6,340'

2. ESTIMATEDDEPTHOFANTICIPATEDWATER,OIL,GASORMINERALFORMATIONS:

Substance Formation Depth

Gas Wasatch 5,300'-8,985'

Gas Mesaverde 8,985'-11,525'

Gas Blackhawk 11,755'-12,615'

Allfreshwaterprospectivelyvaluablemineralsencounteredduringdrilling,willbe recordedby depth and adequatelyprotected. Alloiland gas showswillbe testedto determinecommercialpotential.

PElk

ONSHONEORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal #12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S - R17E DRILLINGPROGRAMDuchesneCounty,Utah Page 1

ONSHOREOIL&GASORDERNO.1ApprovalofOperationsonOnshore

FederalandIndianOilandGasLeases

Allleaseand/orunitoperationswillbeconductedinsucha mannerthatfullcomplianceismadewithapplicablelaws,regulations(43CFR3100),OnshoreOilandGasOrderNo.1,andtheapprovedplanofoperations.Theoperatorisfullyresponsiblefortheactionsofhissubcontractors.Acopyoftheseconditionswillbe furnishedthefieldrepresentativetoinsurecompliance.

1. ESTIMATEDTOPSOFIMPORTANTGEOLOGlCMARKERS

Formation Depth Subsea

Wasatch 4,850' +1,525'

MesaVerde 8,985' -2,610'

Castlegate 11,525' -5,150'

Blackhawk 11,755' -5,380'

Aberdeen 12,415' -6,040'

T.D. 12,715' -6,340'

2. ESTIMATEDDEPTHOFANTICIPATEDWATER,OIL,GASORMINERALFORMATIONS:

Substance Formation Depth

Gas Wasatch 5,300'-8,985'

Gas Mesaverde 8,985'-11,525'

Gas Blackhawk 11,755'-12,615'

Allfreshwaterprospectivelyvaluablemineralsencounteredduringdrilling,willbe recordedby depth and adequatelyprotected. Alloiland gas showswillbe testedto determinecommercialpotential.

PElk

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGasco ProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S- R17E DRILLINGPROGRAMDuchesneCounty,Utah Page 2

3. PRESSURECONTROLEQUIPMENT

GascoProductionCompany'sminimumspecificationsforpressurecontrolequipmentareas follows:

RamType: 11"Hydraulicdoublewithannular,5000psiw.p.

Ramtypepreventersandassociatedequipmentshallbe testedtoapprovedstackworkingpressureif isolatedby testplugor to 70 percent of internalyieldpressureofcasing. Pressure shallbemaintainedforat least 10minutesoruntilrequirementsoftestaremet,whicheveris longer. Ifa testplugis utilized,no bleed-offpressureisacceptable.Fora testnotutilizinga testplug,ifa declineinpressureofmorethan10 percentin30 minutesoccurs,thetestshallbe consideredtohave failed.Valveoncasinghead belowtestplugshallbe openduringtestofBOPstack.

Annulartypepreventers(ifused)shallbe testedto50 percentofratedworkingpressure. Pressureshallbe maintainedat least 10minutesoruntilprovisionsoftestare met,whicheveris longer.

Asa minimum,theabovetestshallbe performed:

a. wheninitiallyinstalled;b. wheneveranysealsubjecttotestpressure is brokenc. followingrelatedrepairs;andd. at 30-dayintervals

Valvesshallbe testedfromworkingpressure sideduringBOPEtestswithalldownstreamvalvesopen.

Whentestingthekilllinevalve(s)thecheckvalveshallbe heldopenortheballremoved.

Annularpreventersshallbe functionallyoperatedat leastweekly.

Pipeandblindramsshallbe activatedeachtrip,however,thisfunctionneednotbe performedmorethanoncea day.

ABOPEpitleveldrillshallbe conductedweeklyforeachdrillingcrew.

Pressuretestsshallapplytoallrelatedwellcontrolequipment.

Alloftheabovedescribedtestsand/ordrillsshallbe recordedinthedrillinglog.

PElk

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGasco ProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S- R17E DRILLINGPROGRAMDuchesneCounty,Utah Page 2

3. PRESSURECONTROLEQUIPMENT

GascoProductionCompany'sminimumspecificationsforpressurecontrolequipmentareas follows:

RamType: 11"Hydraulicdoublewithannular,5000psiw.p.

Ramtypepreventersandassociatedequipmentshallbe testedtoapprovedstackworkingpressureif isolatedby testplugor to 70 percent of internalyieldpressureofcasing. Pressure shallbemaintainedforat least 10minutesoruntilrequirementsoftestaremet,whicheveris longer. Ifa testplugis utilized,no bleed-offpressureisacceptable.Fora testnotutilizinga testplug,ifa declineinpressureofmorethan10 percentin30 minutesoccurs,thetestshallbe consideredtohave failed.Valveoncasinghead belowtestplugshallbe openduringtestofBOPstack.

Annulartypepreventers(ifused)shallbe testedto50 percentofratedworkingpressure. Pressureshallbe maintainedat least 10minutesoruntilprovisionsoftestare met,whicheveris longer.

Asa minimum,theabovetestshallbe performed:

a. wheninitiallyinstalled;b. wheneveranysealsubjecttotestpressure is brokenc. followingrelatedrepairs;andd. at 30-dayintervals

Valvesshallbe testedfromworkingpressure sideduringBOPEtestswithalldownstreamvalvesopen.

Whentestingthekilllinevalve(s)thecheckvalveshallbe heldopenortheballremoved.

Annularpreventersshallbe functionallyoperatedat leastweekly.

Pipeandblindramsshallbe activatedeachtrip,however,thisfunctionneednotbe performedmorethanoncea day.

ABOPEpitleveldrillshallbe conductedweeklyforeachdrillingcrew.

Pressuretestsshallapplytoallrelatedwellcontrolequipment.

Alloftheabovedescribedtestsand/ordrillsshallbe recordedinthedrillinglog.

PElk

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S- R17E DRILLINGPROGRAMDuchesneCounty,Utah Page 3

BOPsystemsshallbe consistentwithAPIRP53. Pressuretestswillbe conductedbeforedrillingoutfromundercasingstringswhichhave been setandcementedinplace. Blowoutpreventercontrolswillbe installedpriortodrillingthesurfacecasingplugandwillremaininuseuntilthewelliscompletedorabandoned.Preventerswillbe inspectedandoperatedat leastdailytoensuregoodmechanicalworkingorder,andthisinspectionwillbe recordedon thedailydrillingreport. Preventerswillbepressuretestedbeforedrillingcasingcementplugs.

TheDistrictOfficeshouldbe notified,withsufficientleadtime,inordertohavetheBLMrepresentativeonlocationduringpressuretesting.

a. ThesizeandratingoftheBOPstackisshownontheattacheddiagram.Althougha righasnotbeenchosentodrillthiswell,mostoftheequipmentforthisdepthofholeintheareausea 11",5000psiworkingpressure blowoutpreventor.

b. Achokelineanda killlineare tobe properlyinstalled.The killlineis nottobe used as afill-upline.

c. Theaccumulatorsystemshallhavea pressurecapacitytoprovideforrepeatedoperationofhydraulicpreventers.

d. Drillstringsafetyvalve(s),tofit_all toolsinthedrillstring,aretobe maintainedontherigfloorwhiledrillingoperationsare inprogress.

4. PROPOSEDCASINGANDCEMENTINGPROGRAM:

a. The proposedcasingandcementingprogramshallbe conductedas approvedtoprotectand/orisolateallusablewaterzones, potentiallyproductivezones, lostcirculationzones,abnormallypressuredzones, and anyprospectivelyvaluabledeposits of minerals.Anyisolatingmediumotherthancementshallreceiveapprovalpriortouse. The casingsettingdepthshallbe calculatedtopositionthecasingseatoppositea competentformationwhichwillcontainthe maximumpressureto which it willbe exposedduring normaldrillingoperations.Determinationofcasingsettingdepth shallbe based on all relevantfactors,including;presencelabsenceof hydrocarbons;fracture gradients;usable waterzones;formationpressures;lostcirculationzones;otherminerals;orotherunusualcharacteristics.Allindicationsofusablewatershallbe


BOPsystemsshallbe consistentwithAPIRP53. Pressuretestswillbe conductedbeforedrillingoutfromundercasingstringswhichhave been setandcementedinplace. Blowoutpreventercontrolswillbe installedpriortodrillingthesurfacecasingplugandwillremaininuseuntilthewelliscompletedorabandoned.Preventerswillbe inspectedandoperatedat leastdailytoensuregoodmechanicalworkingorder,andthisinspectionwillbe recordedon thedailydrillingreport. Preventerswillbepressuretestedbeforedrillingcasingcementplugs.

TheDistrictOfficeshouldbe notified,withsufficientleadtime,inordertohavetheBLMrepresentativeonlocationduringpressuretesting.

a. ThesizeandratingoftheBOPstackisshownontheattacheddiagram.Althougha righasnotbeenchosentodrillthiswell,mostoftheequipmentforthisdepthofholeintheareausea 11",5000psiworkingpressure blowoutpreventor.

b. Achokelineanda killlineare tobe properlyinstalled.The killlineis nottobe used as afill-upline.

c. Theaccumulatorsystemshallhavea pressurecapacitytoprovideforrepeatedoperationofhydraulicpreventers.

d. Drillstringsafetyvalve(s),tofit_all toolsinthedrillstring,aretobe maintainedontherigfloorwhiledrillingoperationsare inprogress.

4. PROPOSEDCASINGANDCEMENTINGPROGRAM:

a. The proposedcasingandcementingprogramshallbe conductedas approvedtoprotectand/orisolateallusablewaterzones, potentiallyproductivezones, lostcirculationzones,abnormallypressuredzones, and anyprospectivelyvaluabledeposits of minerals.Anyisolatingmediumotherthancementshallreceiveapprovalpriortouse. The casingsettingdepthshallbe calculatedtopositionthecasingseatoppositea competentformationwhichwillcontainthe maximumpressureto which it willbe exposedduring normaldrillingoperations.Determinationofcasingsettingdepth shallbe based on all relevantfactors,including;presencelabsenceof hydrocarbons;fracture gradients;usable waterzones;formationpressures;lostcirculationzones;otherminerals;orotherunusualcharacteristics.Allindicationsofusablewatershallbe

ONSHOREORDERNO.1 NFIDENTIAL- TIGHT OLEGascoProductionCompanyWilkinRidge Federal #12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S- R17E DRILLINGPROGRAMDuchesneCounty,Utah Page 4

b. Casingdesignshallassumeformationpressuregradientsof0.44 to0.50 psiperfoot forexploratorywells(lackingbetterdata).

c. Casingdesignshallassumefracturegradientsfrom0.70to1.00psiperfootforexploratorywells(lackingbetterdata)

d. Casingcollarsshallhavea minimumclearanceof0.422inchesofallsidesinthehole/casingannulus,withrecognitionthatvariancescanbe grantedforjustifiedexceptions.

e. Allwaitingoncementtimesshallbe adequatetoachievea minimumof500psicompressivestrengthat thecasingshoepriortodrillingout.

f. Allcasingexcepttheconductorcasing,shallbe neworreconditionedandtestedusedcasingthatmeetsorexceedsAPIstandardsfornewcasing.

g. Thesurfacecasingshallbecementedbacktosurfaceeitherduringtheprimarycementjoborbyremedialcementing.

h. Allindicationsofusablewatershallbe reportedtotheauthorizedofficerpriortorunningthenextstringofcasingor beforepluggingordersarerequested,whicheveroccursfirst.

i. Threecentralizerswillbe runonthebottomthreejointsofsurfacecasingwitha minimumofonecentralizerperjointstartingwiththeshoe joint.

j. Topplugsshallbe usedtoreducecontaminationofcementbydisplacementfluid.Abottomplugor otheracceptabletechnique,suchas a suitablepreflushfluid,innerstringcementmethod,etc.shallbe utilizedtohelpisolatethecementfromcontaminationbythemudfluidbeingdisplacedaheadofthecementslurry.

k. Allcasingstringsbelowtheconductorshallbe pressuretestedto0.22psiperfootofcasingstringlengthor1500psi,whicheverisgreater,but nottoexceed70 percentoftheminimuminternalyield.Ifpressuredeclinesmorethan10percentin30minutes,correctiveactionshallbe taken.

l. Onallexploratorywells,andonthatportionofanywellapprovedfora 5MBOPEsystemorgreater,a pressureintegritytestofeachcasingshoeshallbe performed.Formationat theshoeshallbe testedtoa minimumofthe mudweightequivalentanticipatedtocontroltheformationpressuretothenextcasingdepthorat totaldepthofthewell.Thistestshallbeperformedbeforedrillingmorethan20feet ofnewhole.

ONSHOREORDERNO.1 NFIDENTIAL- TIGHT OLEGascoProductionCompanyWilkinRidge Federal #12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S- R17E DRILLINGPROGRAMDuchesneCounty,Utah Page 4

b. Casingdesignshallassumeformationpressuregradientsof0.44 to0.50 psiperfoot forexploratorywells(lackingbetterdata).

c. Casingdesignshallassumefracturegradientsfrom0.70to1.00psiperfootforexploratorywells(lackingbetterdata)

d. Casingcollarsshallhavea minimumclearanceof0.422inchesofallsidesinthehole/casingannulus,withrecognitionthatvariancescanbe grantedforjustifiedexceptions.

e. Allwaitingoncementtimesshallbe adequatetoachievea minimumof500psicompressivestrengthat thecasingshoepriortodrillingout.

f. Allcasingexcepttheconductorcasing,shallbe neworreconditionedandtestedusedcasingthatmeetsorexceedsAPIstandardsfornewcasing.

g. Thesurfacecasingshallbecementedbacktosurfaceeitherduringtheprimarycementjoborbyremedialcementing.

h. Allindicationsofusablewatershallbe reportedtotheauthorizedofficerpriortorunningthenextstringofcasingor beforepluggingordersarerequested,whicheveroccursfirst.

i. Threecentralizerswillbe runonthebottomthreejointsofsurfacecasingwitha minimumofonecentralizerperjointstartingwiththeshoe joint.

j. Topplugsshallbe usedtoreducecontaminationofcementbydisplacementfluid.Abottomplugor otheracceptabletechnique,suchas a suitablepreflushfluid,innerstringcementmethod,etc.shallbe utilizedtohelpisolatethecementfromcontaminationbythemudfluidbeingdisplacedaheadofthecementslurry.

k. Allcasingstringsbelowtheconductorshallbe pressuretestedto0.22psiperfootofcasingstringlengthor1500psi,whicheverisgreater,but nottoexceed70 percentoftheminimuminternalyield.Ifpressuredeclinesmorethan10percentin30minutes,correctiveactionshallbe taken.

l. Onallexploratorywells,andonthatportionofanywellapprovedfora 5MBOPEsystemorgreater,a pressureintegritytestofeachcasingshoeshallbe performed.Formationat theshoeshallbe testedtoa minimumofthe mudweightequivalentanticipatedtocontroltheformationpressuretothenextcasingdepthorat totaldepthofthewell.Thistestshallbeperformedbeforedrillingmorethan20feet ofnewhole.

ONSHOREORDERNO.1 NFIDENTIAL- TlGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5,T11S- R17E DRILLINGPROGRAMDuchesneCounty,Utah Page 5

m. The proposedcasingprogramwillbe as follows:

Purpose Depth HoleSize 0.D. Weight Grade Type New/Used

Conductor 0-200' 17-1/2" 13-3/8" 48# H-40 - - - New

Surface 0-3,400' 12-1/4" 8-5/8" 32# J-55 ST&C New

Production 0-12,715' 7-7/8" 4-1/2" 13.5# P-110 LT&C New

n. Casingdesignsubjecttorevisionbased ongeologicconditionsencountered.

o. Thecementprogramwillbe as follows:

Conductor TypeandAmount

TOC@Surface 200sx PremiumType5 [email protected],1.18yield

Surface TypeandAmount

TOC@Surface Lead:563sxHi-Liftmixed@11ppg,3.91yieldTail: 185 sx 10-2 [email protected] ppg, 1.63 yield

Production TypeandAmount

TOC@2,500' Lead:[email protected],3.05yieldTail:1263sx50-50Poz [email protected], 1.28yield

p. Anticipatedcementtopswillbe reportedas todepth;nottheexpectednumberofsacksofcementtobe used. The DistrictOfficeshouldbe notified,withsufficientleadtime,inordertohave a BLMrepresentativeonlocationwhilerunningallcasingstringsandcementing.

q. Aftercementingbutbeforecommencinganytest,thecasingstringshallstandcementeduntilthecementhas reacheda compressivestrengthofat least500psiat theshoe. WOCtimeshallbe recordedinthedriller'slog.

r. Thefollowingreportsshallbe filedwiththeDistrictManagerwithin30 daysaftertheworkiscompleted.

ONSHOREORDERNO.1 NFIDENTIAL- TlGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5,T11S- R17E DRILLINGPROGRAMDuchesneCounty,Utah Page 5

m. The proposedcasingprogramwillbe as follows:

Purpose Depth HoleSize 0.D. Weight Grade Type New/Used

Conductor 0-200' 17-1/2" 13-3/8" 48# H-40 - - - New

Surface 0-3,400' 12-1/4" 8-5/8" 32# J-55 ST&C New

Production 0-12,715' 7-7/8" 4-1/2" 13.5# P-110 LT&C New

n. Casingdesignsubjecttorevisionbased ongeologicconditionsencountered.

o. Thecementprogramwillbe as follows:

Conductor TypeandAmount

TOC@Surface 200sx PremiumType5 [email protected],1.18yield

Surface TypeandAmount

TOC@Surface Lead:563sxHi-Liftmixed@11ppg,3.91yieldTail: 185 sx 10-2 [email protected] ppg, 1.63 yield

Production TypeandAmount

TOC@2,500' Lead:[email protected],3.05yieldTail:1263sx50-50Poz [email protected], 1.28yield

p. Anticipatedcementtopswillbe reportedas todepth;nottheexpectednumberofsacksofcementtobe used. The DistrictOfficeshouldbe notified,withsufficientleadtime,inordertohave a BLMrepresentativeonlocationwhilerunningallcasingstringsandcementing.

q. Aftercementingbutbeforecommencinganytest,thecasingstringshallstandcementeduntilthecementhas reacheda compressivestrengthofat least500psiat theshoe. WOCtimeshallbe recordedinthedriller'slog.

r. Thefollowingreportsshallbe filedwiththeDistrictManagerwithin30 daysaftertheworkiscompleted.

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal #12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S - Ri7E DRILLINGPROGRAMDuchesneCounty,Utah Page 6

1. Progress reports,Form3160-5(formerly9-331)"SundryNoticesand ReportsonWells",mustincludecompleteinformationconcerning:

a. Settingofeach stringofcasing,showingthesize,grade,weightofcasingset, holesize,settingdepth,amountsand typeofcementused,whethercementcirculatedor the topofthe cementbehindthe casing,depth ofcementingtoolsused, casing testmethodandresults,andthedate workwas done. Showthespuddate onthefirstreportssubmitted.

b. Temperatureorbondlogsmustbesubmittedforeachwellwherethecasingcementwasnotcirculatedtothesurface.

s. Auxiliaryequipmenttobe usedis as follows:

1. Kellycock

2. Nobitfloatis deemednecessary.

3. Asubwitha fullopeningvalve.

5. MUDPROGRAM

a. The proposedcirculatingmediumstobe employedindrillingareas follows:

Interval MudType MudWt. Visc. F/L pH

0 - 200' FreshWater 8.33 1 --- 7

200' - 3,400' FreshWater 8.33 1 --- 7-8

3,400' - TD FreshWater/DAP 9.0-11.5 30-40 12-20 8

Therewillbe sufficientmudon locationtocontrola blowoutshouldoneoccur.

Amudtestshallbe performedevery24hoursaftermuddinguptodetermine,as applicable:density,viscosity,gelstrength,staticfiltrationloss,andPh.

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal #12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S - Ri7E DRILLINGPROGRAMDuchesneCounty,Utah Page 6

1. Progress reports,Form3160-5(formerly9-331)"SundryNoticesand ReportsonWells",mustincludecompleteinformationconcerning:

a. Settingofeach stringofcasing,showingthesize,grade,weightofcasingset, holesize,settingdepth,amountsand typeofcementused,whethercementcirculatedor the topofthe cementbehindthe casing,depth ofcementingtoolsused, casing testmethodandresults,andthedate workwas done. Showthespuddate onthefirstreportssubmitted.

b. Temperatureorbondlogsmustbesubmittedforeachwellwherethecasingcementwasnotcirculatedtothesurface.

s. Auxiliaryequipmenttobe usedis as follows:

1. Kellycock

2. Nobitfloatis deemednecessary.

3. Asubwitha fullopeningvalve.

5. MUDPROGRAM

a. The proposedcirculatingmediumstobe employedindrillingareas follows:

Interval MudType MudWt. Visc. F/L pH

0 - 200' FreshWater 8.33 1 --- 7

200' - 3,400' FreshWater 8.33 1 --- 7-8

3,400' - TD FreshWater/DAP 9.0-11.5 30-40 12-20 8

Therewillbe sufficientmudon locationtocontrola blowoutshouldoneoccur.

Amudtestshallbe performedevery24hoursaftermuddinguptodetermine,as applicable:density,viscosity,gelstrength,staticfiltrationloss,andPh.


b. Mudmonitoringequipmenttobe usedis as follows:

1. Periodiccheckswillbe madeeachtourofthemudsystem.The mudlevelwillbecheckedvisually.

c. Nochromateadditiveswillbe used inthemudsystemon Federaland/orIndianlandswithoutpriorBLMapprovaltoensureadequateprotectionoffreshwateraquifers.

d. NochemicalssubjecttoreportingunderSARATitleIllinanamountequaltoorgreaterthan10,000 pounds willbe used, produced,stored,transported,or disposed of annuallyinassociationwiththedrillingofthiswell. Furthermore,noextremelyhazardoussubstances,as definedin40 CFR355, inthresholdplanningquantities,willbe used, produced,stored,transported,ordisposedofinassociationwiththedrillingofthiswell.

e. The useofmaterialsunderBLMjurisdictionwillconformto43 CFR3610.2-3.

6. EVALUATIONPROGRAM

The anticipatedtypeand amountoftesting,loggingandcoringare as follows:

a. Nodrillstemtestsareanticipated,however,ifDST'sare run,thefollowingrequirementswillbe adheredto:

Initialopeningof drillstemtesttoolsshallbe restrictedtodaylighthours unless specificapprovaltostartduringotherhoursisobtainedfromtheauthorizedofficer.However,DST'smaybe allowedtocontinueatnightifthetestwas initiatedduringdaylighthoursandtherateofflowis stabilizedand ifadequatelightingis available(i.e.lightingwhichis adequateforvisibilityandvapor-proofforsafeoperations).Packerscanbe released,buttrippingshallnotbeginbeforedaylight,unlesspriorapprovalisobtainedfromtheauthorizedofficer.ClosedchamberDSTsmaybe accomplishedday ornight.

A DSTthatflowstothesurfacewithevidenceofhydrocarbonsshallbe eitherreversedoutofthetestingstringundercontrolledsurfaceconditions.Thiswouldinvolveprovidedsomemeansforreversecirculation.

Separationequipmentrequiredfortheanticipatedrecoveryshallbe properlyinstalledbeforea teststarts.

PERi


b. Mudmonitoringequipmenttobe usedis as follows:

1. Periodiccheckswillbe madeeachtourofthemudsystem.The mudlevelwillbecheckedvisually.

c. Nochromateadditiveswillbe used inthemudsystemon Federaland/orIndianlandswithoutpriorBLMapprovaltoensureadequateprotectionoffreshwateraquifers.

d. NochemicalssubjecttoreportingunderSARATitleIllinanamountequaltoorgreaterthan10,000 pounds willbe used, produced,stored,transported,or disposed of annuallyinassociationwiththedrillingofthiswell. Furthermore,noextremelyhazardoussubstances,as definedin40 CFR355, inthresholdplanningquantities,willbe used, produced,stored,transported,ordisposedofinassociationwiththedrillingofthiswell.

e. The useofmaterialsunderBLMjurisdictionwillconformto43 CFR3610.2-3.

6. EVALUATIONPROGRAM

The anticipatedtypeand amountoftesting,loggingandcoringare as follows:

a. Nodrillstemtestsareanticipated,however,ifDST'sare run,thefollowingrequirementswillbe adheredto:

Initialopeningof drillstemtesttoolsshallbe restrictedtodaylighthours unless specificapprovaltostartduringotherhoursisobtainedfromtheauthorizedofficer.However,DST'smaybe allowedtocontinueatnightifthetestwas initiatedduringdaylighthoursandtherateofflowis stabilizedand ifadequatelightingis available(i.e.lightingwhichis adequateforvisibilityandvapor-proofforsafeoperations).Packerscanbe released,buttrippingshallnotbeginbeforedaylight,unlesspriorapprovalisobtainedfromtheauthorizedofficer.ClosedchamberDSTsmaybe accomplishedday ornight.

A DSTthatflowstothesurfacewithevidenceofhydrocarbonsshallbe eitherreversedoutofthetestingstringundercontrolledsurfaceconditions.Thiswouldinvolveprovidedsomemeansforreversecirculation.

Separationequipmentrequiredfortheanticipatedrecoveryshallbe properlyinstalledbeforea teststarts.

PERi

ONSHOREORDERNO.1 FIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal #12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S- R17E DRILLINGPROGRAMDuchesneCounty,Utah Page 8

Allengineswithin100feetofthewellborethatarerequiredto"run"duringthetestshallhavesparkarrestersorwatercooledexhausts.

b. Theloggingprogramwillconsistofa SchlumbergerPlatformExpressorequivalenttobe runfromT.D.toBase ofSurfaceCasing.

c. Nocoresareanticipated.

d. Whetherthe well is completedas a dry hole or as a producer,"WellCompletionandRecompletionReportandLog"(Form3160-4)willbe submittednotlaterthan30 days aftercompletionofthewelloraftercompletionofoperationsbeingperformed,inaccordancewith43 CFR 3164. Twocopiesof all logs,coredescriptions,coreanalyses,well-testdata,geologicsummaries,sampledescription,andallothersurveysordataobtainedandcompiledduringthedrilling,workover,and/orcompletionoperations,willbe filedwithform3160-4.Samples(cutting,fluids,and/orgases0 willbe submittedwhenrequestedbytheauthorizedofficer(AO).

e. Theanticipatedcompletionprogramwillisas follows:PerformmultistagefracsandcompleteallproductiveBlackhawk,Mesaverde,andWasatchzones presentinwellbore.Produceallzones commingled.

f. Dailydrillingandcompletionprogressreportsshallbe submittedtotheBLMinVernalonaweeklybasis.

7. ABNORMALTEMPERATURESORPRESSURES

a. The expectedbottomhole pressure is 7120 psi.The maximumbottomhole temperatureanticipatedis216degrees F.

b. NoHydrogenSulfideGasis anticipated.

8. ANTICIPATEDSTARTINGDATESANDNOTIFICATIONOFOPERATIONS

a. Drillingis plannedtocommenceonuponapprovalofthisapplication.

b. Itis anticipatedthatthedrillingofthiswellwilltakeapproximately35 days.

ONSHOREORDERNO.1 FIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal #12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S- R17E DRILLINGPROGRAMDuchesneCounty,Utah Page 8

Allengineswithin100feetofthewellborethatarerequiredto"run"duringthetestshallhavesparkarrestersorwatercooledexhausts.

b. Theloggingprogramwillconsistofa SchlumbergerPlatformExpressorequivalenttobe runfromT.D.toBase ofSurfaceCasing.

c. Nocoresareanticipated.

d. Whetherthe well is completedas a dry hole or as a producer,"WellCompletionandRecompletionReportandLog"(Form3160-4)willbe submittednotlaterthan30 days aftercompletionofthewelloraftercompletionofoperationsbeingperformed,inaccordancewith43 CFR 3164. Twocopiesof all logs,coredescriptions,coreanalyses,well-testdata,geologicsummaries,sampledescription,andallothersurveysordataobtainedandcompiledduringthedrilling,workover,and/orcompletionoperations,willbe filedwithform3160-4.Samples(cutting,fluids,and/orgases0 willbe submittedwhenrequestedbytheauthorizedofficer(AO).

e. Theanticipatedcompletionprogramwillisas follows:PerformmultistagefracsandcompleteallproductiveBlackhawk,Mesaverde,andWasatchzones presentinwellbore.Produceallzones commingled.

f. Dailydrillingandcompletionprogressreportsshallbe submittedtotheBLMinVernalonaweeklybasis.

7. ABNORMALTEMPERATURESORPRESSURES

a. The expectedbottomhole pressure is 7120 psi.The maximumbottomhole temperatureanticipatedis216degrees F.

b. NoHydrogenSulfideGasis anticipated.

8. ANTICIPATEDSTARTINGDATESANDNOTIFICATIONOFOPERATIONS

a. Drillingis plannedtocommenceonuponapprovalofthisapplication.

b. Itis anticipatedthatthedrillingofthiswellwilltakeapproximately35 days.

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal #12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S- R17E DRILLINGPROGRAMDuchesneCounty,Utah Page 9

c. The BLMinVernal,Utahshallbe notifiedoftheanticipateddateof locationconstructioncommencementandofanticipatedspud date.

d. Nolocationwillbe constructedormoved,nowellwillbe plugged,andnodrillingorworkoverequipmentwillbe removedfroma welltobe placedin a suspendedstatuswithoutpriorapprovaloftheAO. Ifoperationsare to be suspended, priorapprovalof the AOwillbeobtainedandnotificationgivenbeforeresumptionofoperations.

e. The spud date willbe reportedorallyto theAOwithin48 hours afterspudding. Ifthespuddingoccursonaweekendorholiday,thereportwillbesubmittedonthefollowingregularworkday. Theoralreportwillbe followedupwitha SundryNotice.

f. InaccordancewithOnshoreOilandGasOrderNo.1,thiswellwillbe reportedonForm3160-6 "MonthlyReportofOperations",startingwiththemonthinwhichoperationscommenceandcontinueeachmonthuntilthewellis physicallypluggedand abandoned.ThisreportwillbefiledwiththeVernalBLMDistrictOffice,170South500 East,Vernal,UT 84078.

g. ImmediateReport:Spills,blowouts,fires,leaks,accidents,oranyotherunusualoccurrencesshallbe promptlyreportedinaccordancewiththerequirementsofNTL-3Aor its revision.

h. Ifa replacementrigiscontemplatedforcompletionoperations,a "SundryNotice"Form3160-5 tothateffectwillbe filed,forpriorapprovaloftheAO,andallconditionsofthisapprovedplanareapplicableduringalloperationsconductedwiththereplacementrig.

i. Shouldthewellbe successfullycompletedforproduction,theAOwillbe notifiedwhenthewellisplacedina producingstatus.Suchnotificationwillbe sentbytelegramorotherwrittencommunications,notlaterthan5 days followingthedate onwhichthewellis placedonproduction.

j. PursuanttoOnshoreOrderNo.7,withtheapprovaloftheDistrictEngineer,producedwatermaybe temporarilydisposedofintounlinedpitsfora periodofupto90 days. Duringtheperiodso authorized,an applicationforapprovalofthepermanentdisposalmethod,alongwiththe requiredwateranalysisandotherinformation,mustbe submittedtotheDistrictEngineer.

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal #12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S- R17E DRILLINGPROGRAMDuchesneCounty,Utah Page 9

c. The BLMinVernal,Utahshallbe notifiedoftheanticipateddateof locationconstructioncommencementandofanticipatedspud date.

d. Nolocationwillbe constructedormoved,nowellwillbe plugged,andnodrillingorworkoverequipmentwillbe removedfroma welltobe placedin a suspendedstatuswithoutpriorapprovaloftheAO. Ifoperationsare to be suspended, priorapprovalof the AOwillbeobtainedandnotificationgivenbeforeresumptionofoperations.

e. The spud date willbe reportedorallyto theAOwithin48 hours afterspudding. Ifthespuddingoccursonaweekendorholiday,thereportwillbesubmittedonthefollowingregularworkday. Theoralreportwillbe followedupwitha SundryNotice.

f. InaccordancewithOnshoreOilandGasOrderNo.1,thiswellwillbe reportedonForm3160-6 "MonthlyReportofOperations",startingwiththemonthinwhichoperationscommenceandcontinueeachmonthuntilthewellis physicallypluggedand abandoned.ThisreportwillbefiledwiththeVernalBLMDistrictOffice,170South500 East,Vernal,UT 84078.

g. ImmediateReport:Spills,blowouts,fires,leaks,accidents,oranyotherunusualoccurrencesshallbe promptlyreportedinaccordancewiththerequirementsofNTL-3Aor its revision.

h. Ifa replacementrigiscontemplatedforcompletionoperations,a "SundryNotice"Form3160-5 tothateffectwillbe filed,forpriorapprovaloftheAO,andallconditionsofthisapprovedplanareapplicableduringalloperationsconductedwiththereplacementrig.

i. Shouldthewellbe successfullycompletedforproduction,theAOwillbe notifiedwhenthewellisplacedina producingstatus.Suchnotificationwillbe sentbytelegramorotherwrittencommunications,notlaterthan5 days followingthedate onwhichthewellis placedonproduction.

j. PursuanttoOnshoreOrderNo.7,withtheapprovaloftheDistrictEngineer,producedwatermaybe temporarilydisposedofintounlinedpitsfora periodofupto90 days. Duringtheperiodso authorized,an applicationforapprovalofthepermanentdisposalmethod,alongwiththe requiredwateranalysisandotherinformation,mustbe submittedtotheDistrictEngineer.

ONSHOREORDERNO.i NFIDENTIAL-TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S- R17E DRILLINGPROGRAMDuchesneCounty,Utah Page 10

k. PursuanttoNTL-4A,lessees oroperatorsareauthorizedtovent/flaregasduringinitialwellevaluationtests,notexceedinga periodof30 days ortheproductionof50 MMCFofgas,whicheveroccursfirst. Anapplicationmustbe filedwiththeDistrictEngineerandapprovalreceived,foranyventing/flaringofgas beyondtheinitial30 dayorauthorizedtestperiod.

l. Aschematicfacilitiesdiagramas requiredby43CFR3162.7-5(b.9.d.),shallbe submittedtothe appropriateDistrictOfficewithinsixty(60) days of installationor first production,whicheveroccursfirst.Allsitesecurityregulationsas specifiedinOnshoreOrderNo.3shallbe adheredto. Allproductlinesenteringand leavinghydrocarbonstoragetankswillbeeffectivelysealedinaccordancewith43 CFR3162.7-5(b.4.).

m. A firstproductionconferencewillbe scheduledwithin15 days afterreceiptof the firstproductionnotice.

n. Nowellabandonmentoperationswillbe commencedwithoutthepriorapprovaloftheAO.Inthecaseofnewlydrilleddryholesorfailures,andinemergencysituations,oralapprovalwillbe obtainedfromtheSO.A"SubsequentReportofAbandonment"Form3160-5,willbefiledwiththeAOwithin30daysfollowingcompletionofthewellforabandonment.Thisreportwillindicate whereplugswere placedandthe currentstatusofsurfacerestoration.Finalabandonmentwillnot be approveduntilthe surfacereclamationwork requiredby theapprovedAPDorapprovedabandonmentnoticehas been completedtothesatisfactionoftheAOorhis representative,ortheappropriateSurfaceManagingAgency.

o. PursuanttoOnshoreOilandGasOrderNo.1, lessees andoperatorshavetheresponsibilityto see thattheirexploration,development,production,and constructionoperationsareconductedina mannerwhichconformswithapplicableFederallawsandregulationsandwithState and local laws and regulationsto the extentthat suchState and local laws areapplicabletooperationsonFederalorIndianlands.

Bureauof LandManagement170South500 East

Phone:435/781-4400 Vernal,Utah84078 Fax:435/781-4410AfterHours:

MattBaker PetroleumEngineer 435/828-4470

MichaelLee PetroleumEngineer 435/828-7875

ONSHOREORDERNO.i NFIDENTIAL-TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S- R17E DRILLINGPROGRAMDuchesneCounty,Utah Page 10

k. PursuanttoNTL-4A,lessees oroperatorsareauthorizedtovent/flaregasduringinitialwellevaluationtests,notexceedinga periodof30 days ortheproductionof50 MMCFofgas,whicheveroccursfirst. Anapplicationmustbe filedwiththeDistrictEngineerandapprovalreceived,foranyventing/flaringofgas beyondtheinitial30 dayorauthorizedtestperiod.

l. Aschematicfacilitiesdiagramas requiredby43CFR3162.7-5(b.9.d.),shallbe submittedtothe appropriateDistrictOfficewithinsixty(60) days of installationor first production,whicheveroccursfirst.Allsitesecurityregulationsas specifiedinOnshoreOrderNo.3shallbe adheredto. Allproductlinesenteringand leavinghydrocarbonstoragetankswillbeeffectivelysealedinaccordancewith43 CFR3162.7-5(b.4.).

m. A firstproductionconferencewillbe scheduledwithin15 days afterreceiptof the firstproductionnotice.

n. Nowellabandonmentoperationswillbe commencedwithoutthepriorapprovaloftheAO.Inthecaseofnewlydrilleddryholesorfailures,andinemergencysituations,oralapprovalwillbe obtainedfromtheSO.A"SubsequentReportofAbandonment"Form3160-5,willbefiledwiththeAOwithin30daysfollowingcompletionofthewellforabandonment.Thisreportwillindicate whereplugswere placedandthe currentstatusofsurfacerestoration.Finalabandonmentwillnot be approveduntilthe surfacereclamationwork requiredby theapprovedAPDorapprovedabandonmentnoticehas been completedtothesatisfactionoftheAOorhis representative,ortheappropriateSurfaceManagingAgency.

o. PursuanttoOnshoreOilandGasOrderNo.1, lessees andoperatorshavetheresponsibilityto see thattheirexploration,development,production,and constructionoperationsareconductedina mannerwhichconformswithapplicableFederallawsandregulationsandwithState and local laws and regulationsto the extentthat suchState and local laws areapplicabletooperationsonFederalorIndianlands.

Bureauof LandManagement170South500 East

Phone:435/781-4400 Vernal,Utah84078 Fax:435/781-4410AfterHours:

MattBaker PetroleumEngineer 435/828-4470

MichaelLee PetroleumEngineer 435/828-7875

BOP SCHEMATIC . PLAN V1EW Cl101Œ MANIFOLD5000 PSI WORKING PRESSURE

PI US FLARE GAS BUSTER(IF AVAILAULE)

FLOWLINEDRILLING

-¾ PS W

NIPPLEBALL VALVE

FILL-UP LINE 2"-2000PSI WP BALL DLEED/PAWIC

VALVE LINE (3~)

L

ANNULAR2" 2-3"-5000

(SOOO PSI WP) PSI WP PLUG

11" X 5000 PSI 3 VALVES

SHAFFER FLANGE 3" -5000 PSI WP PLUG

--- - -

---- VALVE W/GAUGE

SHAFFER ] c- .2-3"-5000 PSL lADJUSfABLE MANUAL

BUND RAMS -

2-3 -5000 PSI WP PLUG VALVES POslllVE CHOKE

(DOUBLE RAM WP PLUG VALVES

HYDRAUUC BOP POSlllVE Cil0KE WEll! FROM CilOKE

E5000 PSI WP) HYDRAUUC REMO1E LINE

PIPE RAMS COWIROL (HCR)

...5000 PSI PRESSURE GAUGE

2"-5000 PSI WPCHECK VALVE

3"-5000 PSI WP VALVE (\\CH)

.,D.S.5 00

3"-5000 P WP VALVE

2"-5000 PSI WPAUlOMAllC CilOlŒ

VALVES (2)Cl10KE LINE (l.D.)

KILL LINE

BULL PLUG E CASING HEAD "-5000 PSI WP VALVE THE HYDRAUUC. CLOSlNG UNIT WILLBE LOCAlED MORE illANJD° FROM, lHE WELLHEAD. CHOKE AND BLEED/PANIC LINES

WILL Go 10 lilE PIT AND FLARE. ALL CONNECllONS IN

SURFACECilOKE LINES AND MANIFOLD WILL BE FLANGED OR WELDED.

CASINGALL FLANGES SHOULD BE RING JOIN f GASKET TYPE. ALL

lURNS IN LINES SHALL BE CONSlRUC1ED USING TARGElfNG90° lEES OR ELLS. ALL LINES SilALL BE

BOP SCHEMATIC . PLAN V1EW Cl101Œ MANIFOLD5000 PSI WORKING PRESSURE

PI US FLARE GAS BUSTER(IF AVAILAULE)

FLOWLINEDRILLING

-¾ PS W

NIPPLEBALL VALVE

FILL-UP LINE 2"-2000PSI WP BALL DLEED/PAWIC

VALVE LINE (3~)

L

ANNULAR2" 2-3"-5000

(SOOO PSI WP) PSI WP PLUG

11" X 5000 PSI 3 VALVES

SHAFFER FLANGE 3" -5000 PSI WP PLUG

--- - -

---- VALVE W/GAUGE

SHAFFER ] c- .2-3"-5000 PSL lADJUSfABLE MANUAL

BUND RAMS -

2-3 -5000 PSI WP PLUG VALVES POslllVE CHOKE

(DOUBLE RAM WP PLUG VALVES

HYDRAUUC BOP POSlllVE Cil0KE WEll! FROM CilOKE

E5000 PSI WP) HYDRAUUC REMO1E LINE

PIPE RAMS COWIROL (HCR)

...5000 PSI PRESSURE GAUGE

2"-5000 PSI WPCHECK VALVE

3"-5000 PSI WP VALVE (\\CH)

.,D.S.5 00

3"-5000 P WP VALVE

2"-5000 PSI WPAUlOMAllC CilOlŒ

VALVES (2)Cl10KE LINE (l.D.)

KILL LINE

BULL PLUG E CASING HEAD "-5000 PSI WP VALVE THE HYDRAUUC. CLOSlNG UNIT WILLBE LOCAlED MORE illANJD° FROM, lHE WELLHEAD. CHOKE AND BLEED/PANIC LINES

WILL Go 10 lilE PIT AND FLARE. ALL CONNECllONS IN

SURFACECilOKE LINES AND MANIFOLD WILL BE FLANGED OR WELDED.

CASINGALL FLANGES SHOULD BE RING JOIN f GASKET TYPE. ALL

lURNS IN LINES SHALL BE CONSlRUC1ED USING TARGElfNG90° lEES OR ELLS. ALL LINES SilALL BE

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal #12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5,T11S- R17E SURFACEUSEPLANDuchesneCounty,Utah Page 1

ONSHOREOIL&GASORDERNO.1NOTIFICATIONREQUIREMENTS

LocationConstruction- forty-eight(48)hourspriortoconstructionoflocationandaccessroads.

LocationCompletion- priortomovingonthedrillingrig.

SpudNotice - at leasttwenty-four(24)hourspriortospuddingthewell.

CasingStringand - twenty-four(24)hourspriortorunningcasingandCementing cementingallcasingstrings.

BOPandRelated - twenty-four(24)hourspriortoinitiatingpressuretests.EquipmentTests

FirstProduction- withinfive(5)businessdaysafternewwellbeginsorNotice productionresumesafterwellhas been offproductionformorethan

ninety(90)days.

The onsiteinspectionforthesubjectwellsitewas conductedonTuesday,February27, 2007 atapproximately2:20p.m. Weatherconditionswerecool,cloudy,windyandsnowing.Inattendanceat theonsiteinspectionwerethefollowingindividuals:

DarrenWilliams NaturalResourceSpecialist BureauofLandManagementAmyTorres WildlifeBiologist BureauofLandManagementRandySmith PermittingAgent PermitcoInc.Jesse Walton Surveyor UintahEngineeringandLandSurveyingShonMcKinnon Consultant Gasco ProductionCompany

1. EXISTINGROADS

a. The proposedwellsiteis locatedapproximately26.5milessouthofMyton,Utah.


ONSHOREOIL&GASORDERNO.1NOTIFICATIONREQUIREMENTS

LocationConstruction- forty-eight(48)hourspriortoconstructionoflocationandaccessroads.

LocationCompletion- priortomovingonthedrillingrig.

SpudNotice - at leasttwenty-four(24)hourspriortospuddingthewell.

CasingStringand - twenty-four(24)hourspriortorunningcasingandCementing cementingallcasingstrings.

BOPandRelated - twenty-four(24)hourspriortoinitiatingpressuretests.EquipmentTests

FirstProduction- withinfive(5)businessdaysafternewwellbeginsorNotice productionresumesafterwellhas been offproductionformorethan

ninety(90)days.

The onsiteinspectionforthesubjectwellsitewas conductedonTuesday,February27, 2007 atapproximately2:20p.m. Weatherconditionswerecool,cloudy,windyandsnowing.Inattendanceat theonsiteinspectionwerethefollowingindividuals:

DarrenWilliams NaturalResourceSpecialist BureauofLandManagementAmyTorres WildlifeBiologist BureauofLandManagementRandySmith PermittingAgent PermitcoInc.Jesse Walton Surveyor UintahEngineeringandLandSurveyingShonMcKinnon Consultant Gasco ProductionCompany

1. EXISTINGROADS

a. The proposedwellsiteis locatedapproximately26.5milessouthofMyton,Utah.

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal #12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S- R17E SURFACEUSEPLANDuchesneCounty,Utah Page 2

b. DirectionstothelocationfromMyton,Utahareas follows:

Proceedina southeasterlydirectionfromMyton,Utahforapproximately12.7milestotheCastlePeakMine.Stayrightandcontinuesoutherlyfor6.6milestoa forkintheroad.Stay rightagainandcontinuesouthwesterly6.2miles.Turnrightontotheproposedaccess andproceedsouthwest1 mileuntilreachingtheproposedlocation.

c. Forlocationofaccessroadswithina 2-Mileradius,see MapsA&B.

d. Improvementtoexistingmainroadswillnotbe required.

e. Allexistingroadswillbe maintainedandkeptingoodrepairduringalldrillingandcompletionoperationsassociatedwiththiswell.

f. ExistingroadsandnewlyconstructedroadsonsurfaceunderthejurisdictionofanySurfaceManagingAgencyshallbe maintainedinaccordancewiththestandardsoftheSMA.

2. PLANNEDACCESSROADS

a. Therewillbe approximately1 mileofnewaccesstobe constructed.

b. The maximumgrade is approximately3%.

c. Noturnoutsare planned.

d. Noculvertswillbe necessary.Lowwatercrossingswillbe installedas deemednecessaryat thetimeofconstruction.

e. Theaccessroadwascenterlinesurveyedat thetimeofstaking.

f. The useofsurfacingmaterialis notanticipated,howeveritmaybe necessarydependingonweatherconditions.

g. Nocattleguardswillbe necessary.

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal #12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S- R17E SURFACEUSEPLANDuchesneCounty,Utah Page 2

b. DirectionstothelocationfromMyton,Utahareas follows:

Proceedina southeasterlydirectionfromMyton,Utahforapproximately12.7milestotheCastlePeakMine.Stayrightandcontinuesoutherlyfor6.6milestoa forkintheroad.Stay rightagainandcontinuesouthwesterly6.2miles.Turnrightontotheproposedaccess andproceedsouthwest1 mileuntilreachingtheproposedlocation.

c. Forlocationofaccessroadswithina 2-Mileradius,see MapsA&B.

d. Improvementtoexistingmainroadswillnotbe required.

e. Allexistingroadswillbe maintainedandkeptingoodrepairduringalldrillingandcompletionoperationsassociatedwiththiswell.

f. ExistingroadsandnewlyconstructedroadsonsurfaceunderthejurisdictionofanySurfaceManagingAgencyshallbe maintainedinaccordancewiththestandardsoftheSMA.

2. PLANNEDACCESSROADS

a. Therewillbe approximately1 mileofnewaccesstobe constructed.

b. The maximumgrade is approximately3%.

c. Noturnoutsare planned.

d. Noculvertswillbe necessary.Lowwatercrossingswillbe installedas deemednecessaryat thetimeofconstruction.

e. Theaccessroadwascenterlinesurveyedat thetimeofstaking.

f. The useofsurfacingmaterialis notanticipated,howeveritmaybe necessarydependingonweatherconditions.

g. Nocattleguardswillbe necessary.

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460'FWLSWNWSection5, T11S- R17E SURFACEUSEPLANDuchesneCounty,Utah Page 3

h. Surfacedisturbanceandvehiculartravelwillbe limitedtotheapprovedlocationandapprovedaccessroute. Anyadditionalarea neededwillbe approvedinadvance.

i. Allaccessroadswillbe constructedinaccordancewithGoldBookStandards.

j. The roadwillbe constructedlupgradedtomeetthestandardsoftheanticipatedtrafficflowandallweatherroadrequirements.Construction/upgradingshallincludeditching,draining,graveling,crowingandcappingtheroadbedas necessarytoprovidea wellconstructedsaferoad. Priortoupgrading,theroadshallbe clearedofanysnowcoverandallowedtodrycompletely.Travelingoffthe30footright-of-waywillnotbe allowed.Roaddrainagecrossingsshallbe ofthetypicaldrycreekdrainagecrossingtype.Crossingsshallbe designedso theywill·notcausesiltationoraccumulationofdebrisinthedrainagecrossingnorshallthedrainagesbe blockedbytheroadbed.Erosionofdrainageditchesby runoffwatershallbe preventedbydivertingwateroffat frequentintervalsbymeansofcutouts. Upgradingshallnotbe allowedduringmuddyconditions.Shouldmudholesdevelop,theyshallbe filledinanddetoursaroundthemavoided.

k. NochemicalssubjecttoreportingunderSARATitleIllinan amountequaltoorgreaterthan10,000 poundswillbe used,produced,stored,transported,ordisposedofannuallyinassociationwiththedrillingofthiswell.Furthermore,noextremelyhazardoussubstances,as definedin40 CFR355, inthresholdplanningquantities,willbe used,produced,stored,transported,ordisposedofinassociationwiththedrillingofthiswell.

l. Roadrightofwayis notneededsinceallroadsare locatedwithintheunitboundary.

3. LOCATIONOFEXISTINGWELLSWITHINA1-MILERADIUSOFTHEPROPOSEDLOCATION.(SeeMap"C")

a. Waterwells- none

b. Injectionwells- none

c. Producingwells- one

d. Drillingwells- none

e. Shut-inwells- none

f. Temporarilyabandonedwells- none

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460'FWLSWNWSection5, T11S- R17E SURFACEUSEPLANDuchesneCounty,Utah Page 3

h. Surfacedisturbanceandvehiculartravelwillbe limitedtotheapprovedlocationandapprovedaccessroute. Anyadditionalarea neededwillbe approvedinadvance.

i. Allaccessroadswillbe constructedinaccordancewithGoldBookStandards.

j. The roadwillbe constructedlupgradedtomeetthestandardsoftheanticipatedtrafficflowandallweatherroadrequirements.Construction/upgradingshallincludeditching,draining,graveling,crowingandcappingtheroadbedas necessarytoprovidea wellconstructedsaferoad. Priortoupgrading,theroadshallbe clearedofanysnowcoverandallowedtodrycompletely.Travelingoffthe30footright-of-waywillnotbe allowed.Roaddrainagecrossingsshallbe ofthetypicaldrycreekdrainagecrossingtype.Crossingsshallbe designedso theywill·notcausesiltationoraccumulationofdebrisinthedrainagecrossingnorshallthedrainagesbe blockedbytheroadbed.Erosionofdrainageditchesby runoffwatershallbe preventedbydivertingwateroffat frequentintervalsbymeansofcutouts. Upgradingshallnotbe allowedduringmuddyconditions.Shouldmudholesdevelop,theyshallbe filledinanddetoursaroundthemavoided.

k. NochemicalssubjecttoreportingunderSARATitleIllinan amountequaltoorgreaterthan10,000 poundswillbe used,produced,stored,transported,ordisposedofannuallyinassociationwiththedrillingofthiswell.Furthermore,noextremelyhazardoussubstances,as definedin40 CFR355, inthresholdplanningquantities,willbe used,produced,stored,transported,ordisposedofinassociationwiththedrillingofthiswell.

l. Roadrightofwayis notneededsinceallroadsare locatedwithintheunitboundary.

3. LOCATIONOFEXISTINGWELLSWITHINA1-MILERADIUSOFTHEPROPOSEDLOCATION.(SeeMap"C")

a. Waterwells- none

b. Injectionwells- none

c. Producingwells- one

d. Drillingwells- none

e. Shut-inwells- none

f. Temporarilyabandonedwells- none

ONSHOREORDERNO.1 $ NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460'FWLSWNWSection5, T11S- R17E SURFACEUSEPLANDuchesneCounty,Utah Page4

g. Disposalwells-none

h. Abandonedwells- one

i. DryHoles- one

4. LOCATIONOFTANKBATTERIESANDPRODUCTIONFACILITIES.

a. Allpermanentstructures(onsiteforsixmonthsorlonger)constructedorinstalled(includingoilwellpumpjacks)willbe paintedCarlsbadCanyon.Allfacilitieswillbepaintedwithinsixmonthsofinstallation.FacilitiesrequiredtocomplywiththeOccupationalSafetyandHealthAct(OSHA)willbe excluded.

b. Ifstoragefacilities/tankbatteriesareconstructedonthislease, thefacility/batteryorthewellpad shallsurroundedbya containmentdikeofsufficientcapacitytocontainat aminimum,theentirecontentsofthelargesttankwithinthefacility/battery,unlessmorestringentprotectiverequirementsaredeemednecessarybytheauthorizedofficer.

c. Ifproductionis established,a productionfacilitydiagramwillbe submittedviaSundryNotice.

d. Allloadinglineswillbe placedinsidethebermsurroundingthetankbattery.

e. Gasmeterrunsforeachwellwillbe locatedwithin500feet ofthewellhead.The gasflowlinewillbe buriedoranchoreddownfromthewellheadtotheseparator.Meterrunswillbe housedand/orfenced.

f. The oilandgas measurementfacilitieswillbe installedonthewelllocation.Theoilandgas meterswillbe calibratedinplacepriortoanydeliveries.Tests formeteraccuracywillbe conductedmonthlyforthefirstthreemonthsonnewmeterinstallationsandat leastquarterlythereafter.TheAOwillbe providedwitha date andtimefortheinitialmetercalibrationandallfuturemeterprovingschedules.Acopyofthemetercalibrationreportswillbe submittedtotheVernalFieldOffice.AllmetermeasurementfacilitieswillconformwithOnshoreOilandGasOrderNo.4 forliquidhydrocarbonsandOnshoreOilandGasOrderNo.5 fornaturalgas measurement.

ONSHOREORDERNO.1 $ NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460'FWLSWNWSection5, T11S- R17E SURFACEUSEPLANDuchesneCounty,Utah Page4

g. Disposalwells-none

h. Abandonedwells- one

i. DryHoles- one

4. LOCATIONOFTANKBATTERIESANDPRODUCTIONFACILITIES.

a. Allpermanentstructures(onsiteforsixmonthsorlonger)constructedorinstalled(includingoilwellpumpjacks)willbe paintedCarlsbadCanyon.Allfacilitieswillbepaintedwithinsixmonthsofinstallation.FacilitiesrequiredtocomplywiththeOccupationalSafetyandHealthAct(OSHA)willbe excluded.

b. Ifstoragefacilities/tankbatteriesareconstructedonthislease, thefacility/batteryorthewellpad shallsurroundedbya containmentdikeofsufficientcapacitytocontainat aminimum,theentirecontentsofthelargesttankwithinthefacility/battery,unlessmorestringentprotectiverequirementsaredeemednecessarybytheauthorizedofficer.

c. Ifproductionis established,a productionfacilitydiagramwillbe submittedviaSundryNotice.

d. Allloadinglineswillbe placedinsidethebermsurroundingthetankbattery.

e. Gasmeterrunsforeachwellwillbe locatedwithin500feet ofthewellhead.The gasflowlinewillbe buriedoranchoreddownfromthewellheadtotheseparator.Meterrunswillbe housedand/orfenced.

f. The oilandgas measurementfacilitieswillbe installedonthewelllocation.Theoilandgas meterswillbe calibratedinplacepriortoanydeliveries.Tests formeteraccuracywillbe conductedmonthlyforthefirstthreemonthsonnewmeterinstallationsandat leastquarterlythereafter.TheAOwillbe providedwitha date andtimefortheinitialmetercalibrationandallfuturemeterprovingschedules.Acopyofthemetercalibrationreportswillbe submittedtotheVernalFieldOffice.AllmetermeasurementfacilitieswillconformwithOnshoreOilandGasOrderNo.4 forliquidhydrocarbonsandOnshoreOilandGasOrderNo.5 fornaturalgas measurement.

ONSHOREORDERNO.1 FIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 LeaseNo.UTU-756721876'FNLand460' FWLSWNWSection5, T11S- R17E SURFACEUSEPLANDuchesneCounty,Utah Page 5

g. Ifat anytimethefacilitieslocatedonpubliclandandauthorizedbythetermsoftheleaseareno longerincludedinthe lease (duetoa contractionintheunitorotherlease orunitboundarychange),BLMwillprocessa changeinauthorizationtotheappropriatestatute.Theauthorizationwillbe subjecttoappropriaterentalorotherfinancialobligationasdeterminedbytheauthorizedofficer.

h. Anynecessarypitswillbe properlyfencedtopreventanywildlifeentry.

i. Allsitesecurityguidelinesidentifiedin43 CFR3162.7regulationswillbe adheredto.

j. Alloff-leasestorage,off-leasemeasurement,orcomminglingon-leaseoroff-leasewillhave pdorwrittenapprovalfromtheDistrictManager.

k. Allaccessroadswillbe maintainedas necessarytopreventerosionandaccommodateyear-roundtraffic.

I. The roadwillbe maintainedina safeuseablecondition.

m. Producedwaterwillbe stored ina 300 bblheated, insulatedtank,thenhauledtoacommercialdisposalsitesuchas Disposalinc.,orBrennanBottom.

n. PipelineswillfollowtherouteshownonMapD. PipelineROWwillnotbe neededsinceallpipelinesare locatedwithintheunitboundary.See Pipelinedetailattached.

5. LOCATIONANDTYPEOFWATERSUPPLY

a. The proposedwatersourcewillbe theNebeckerWaterStationinMyton.TheWaterUseClaim# is43-1721.

b. Waterwillbe hauledbyNebeckerWaterServicetothelocationovertheaccessroadsshownonMapsAandB.

c. Nowaterwellwillbe drilledonthislease.

ONSHOREORDERNO.1 FIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 LeaseNo.UTU-756721876'FNLand460' FWLSWNWSection5, T11S- R17E SURFACEUSEPLANDuchesneCounty,Utah Page 5

g. Ifat anytimethefacilitieslocatedonpubliclandandauthorizedbythetermsoftheleaseareno longerincludedinthe lease (duetoa contractionintheunitorotherlease orunitboundarychange),BLMwillprocessa changeinauthorizationtotheappropriatestatute.Theauthorizationwillbe subjecttoappropriaterentalorotherfinancialobligationasdeterminedbytheauthorizedofficer.

h. Anynecessarypitswillbe properlyfencedtopreventanywildlifeentry.

i. Allsitesecurityguidelinesidentifiedin43 CFR3162.7regulationswillbe adheredto.

j. Alloff-leasestorage,off-leasemeasurement,orcomminglingon-leaseoroff-leasewillhave pdorwrittenapprovalfromtheDistrictManager.

k. Allaccessroadswillbe maintainedas necessarytopreventerosionandaccommodateyear-roundtraffic.

I. The roadwillbe maintainedina safeuseablecondition.

m. Producedwaterwillbe stored ina 300 bblheated, insulatedtank,thenhauledtoacommercialdisposalsitesuchas Disposalinc.,orBrennanBottom.

n. PipelineswillfollowtherouteshownonMapD. PipelineROWwillnotbe neededsinceallpipelinesare locatedwithintheunitboundary.See Pipelinedetailattached.

5. LOCATIONANDTYPEOFWATERSUPPLY

a. The proposedwatersourcewillbe theNebeckerWaterStationinMyton.TheWaterUseClaim# is43-1721.

b. Waterwillbe hauledbyNebeckerWaterServicetothelocationovertheaccessroadsshownonMapsAandB.

c. Nowaterwellwillbe drilledonthislease.


6. SOURCEOFCONSTRUCTIONMATERIAL

a. Surfaceandsubsoilmaterialsintheimmediateareawillbe utilized.

b. Anygravelusedwillbe obtainedfroma commercialsource.

c. The use ofmaterialsunderBLMjurisdictionwillconformwith43 CFR3610.2.3.Constructionmaterialwillnotbe locatedon lease.

d. Noconstructionmaterialswillbe removedfromFederalland.

7. METHODSOFHANDLINGWASTEDISPOSAL

a. The reservepitwillbe constructedsoas nottoleak,break,orallowdischarge.

b. AttherequestoftheBLM,thereservepitwillbe linedwitha 12milliner. Iffracturedrockis encountered,thepitwillbe firstlinedwithsufficientbedding(eitherstrawordirt)tocoverany rocks. The linerwilloverlapthepitwallsand be coveredwithdirtand/orrockstoholditinplace. Notrash,scrappipe,etc.,thatcouldpuncturethelinerwillbe disposedof inthepit. Morestringentprotectiverequirementsmaybe deemednecessaryby theA.O.

c. Burningwillnotbe allowed.Alltrashwillbe containedina trashcageanditscontentsremovedat theendofdrillingoperationsandhauledtoan approveddisposalsight.

d. Afterfirstproduction,producedwastewaterwillbe confinedtoa unlinedpitorstoragetankfora periodnottoexceedninety(90)days. Duringthe90-dayperiod,inaccordancewithOnshoreOrderNo.7, an applicationforapprovalofa permanentdisposalmethodand location,alongwiththerequiredwateranalysis,willbe submittedfortheAO'sapproval.Failuretofilean applicationwithinthetimeallowedwillbe consideredanincidentofnoncompliance.

e. Drillcuttingsaretobe containedandburiedinthereservepit.

f. Anysaltsand/orchemicalswhicharean integralpartofthedrillingsystemwillbedisposedofinthesamemanneras thedrillingfluid.

g. Achemicalporta-toiletwillbe furnishedwiththedrillingrig.


6. SOURCEOFCONSTRUCTIONMATERIAL

a. Surfaceandsubsoilmaterialsintheimmediateareawillbe utilized.

b. Anygravelusedwillbe obtainedfroma commercialsource.

c. The use ofmaterialsunderBLMjurisdictionwillconformwith43 CFR3610.2.3.Constructionmaterialwillnotbe locatedon lease.

d. Noconstructionmaterialswillbe removedfromFederalland.

7. METHODSOFHANDLINGWASTEDISPOSAL

a. The reservepitwillbe constructedsoas nottoleak,break,orallowdischarge.

b. AttherequestoftheBLM,thereservepitwillbe linedwitha 12milliner. Iffracturedrockis encountered,thepitwillbe firstlinedwithsufficientbedding(eitherstrawordirt)tocoverany rocks. The linerwilloverlapthepitwallsand be coveredwithdirtand/orrockstoholditinplace. Notrash,scrappipe,etc.,thatcouldpuncturethelinerwillbe disposedof inthepit. Morestringentprotectiverequirementsmaybe deemednecessaryby theA.O.

c. Burningwillnotbe allowed.Alltrashwillbe containedina trashcageanditscontentsremovedat theendofdrillingoperationsandhauledtoan approveddisposalsight.

d. Afterfirstproduction,producedwastewaterwillbe confinedtoa unlinedpitorstoragetankfora periodnottoexceedninety(90)days. Duringthe90-dayperiod,inaccordancewithOnshoreOrderNo.7, an applicationforapprovalofa permanentdisposalmethodand location,alongwiththerequiredwateranalysis,willbe submittedfortheAO'sapproval.Failuretofilean applicationwithinthetimeallowedwillbe consideredanincidentofnoncompliance.

e. Drillcuttingsaretobe containedandburiedinthereservepit.

f. Anysaltsand/orchemicalswhicharean integralpartofthedrillingsystemwillbedisposedofinthesamemanneras thedrillingfluid.

g. Achemicalporta-toiletwillbe furnishedwiththedrillingrig.

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460'FWLSWNWSection5, T11S - R17E SURFACEUSEPLANDuchesneCounty,Utah Page 7

h. Theproducedfluidswillbe producedintoa testtankuntilsuchtimeas constructionofproductionfacilitiesis completed.Anyspillsofoil,gas saltwaterorotherproducedfluidswillbe cleanedupandremoved.

8. ANCILLARYFACILITIES

Thereare noairstrips,camps,orotherfacilitiesplannedduringthedrillingoftheproposedwell.

9. WELLSITELAYOUT

a. Theoperatororhis/hercontractorshallcontacttheBLMOfficeat 435/781-4400forty-eight(48)hourspriortoconstructionactivities.

b. The reservepitwillbe locatedonthesoutheastsideofthelocation.

c. Theflarepitwillbe locatedonthewestsideofthereservepit, a minimumof100feetfromthewellhead and30 feet fromthereservepitfence.

d. Thestockpiledtopsoil(firstsixinches)willbe storedonthenorthwestsideofthelocation,betweenCorners1 &9. Topsoilalongtheaccessroutewillbe windrowedontheuphillside.

e. Accesstothewellpadwillbe fromthenortheastas shownonthePit&Pad Layout.

f. See LocationLayoutfororientationofrig,crosssectionofdrillpad andcutsandfills.

g. The locationofmudtanks;reservepit,trashcage;piperacks;livingfacilitiesandsoilstockpileswillbe shownontheLocationLayout.

h. Allpitswillbe fencedaccordingtothefollowingminimumstandards:

1. 39 inchnetwireshallbe usedwithat leastonestrandorbarbedwireontopofthenetwire(barbedwireis notnecessaryifpipeorsometypeofreinforcementrodis attachedtothetopoftheentirefence).

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460'FWLSWNWSection5, T11S - R17E SURFACEUSEPLANDuchesneCounty,Utah Page 7

h. Theproducedfluidswillbe producedintoa testtankuntilsuchtimeas constructionofproductionfacilitiesis completed.Anyspillsofoil,gas saltwaterorotherproducedfluidswillbe cleanedupandremoved.

8. ANCILLARYFACILITIES

Thereare noairstrips,camps,orotherfacilitiesplannedduringthedrillingoftheproposedwell.

9. WELLSITELAYOUT

a. Theoperatororhis/hercontractorshallcontacttheBLMOfficeat 435/781-4400forty-eight(48)hourspriortoconstructionactivities.

b. The reservepitwillbe locatedonthesoutheastsideofthelocation.

c. Theflarepitwillbe locatedonthewestsideofthereservepit, a minimumof100feetfromthewellhead and30 feet fromthereservepitfence.

d. Thestockpiledtopsoil(firstsixinches)willbe storedonthenorthwestsideofthelocation,betweenCorners1 &9. Topsoilalongtheaccessroutewillbe windrowedontheuphillside.

e. Accesstothewellpadwillbe fromthenortheastas shownonthePit&Pad Layout.

f. See LocationLayoutfororientationofrig,crosssectionofdrillpad andcutsandfills.

g. The locationofmudtanks;reservepit,trashcage;piperacks;livingfacilitiesandsoilstockpileswillbe shownontheLocationLayout.

h. Allpitswillbe fencedaccordingtothefollowingminimumstandards:

1. 39 inchnetwireshallbe usedwithat leastonestrandorbarbedwireontopofthenetwire(barbedwireis notnecessaryifpipeorsometypeofreinforcementrodis attachedtothetopoftheentirefence).

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand 460' FWLSWNWSection5, T11S- R17E SURFACEUSEPLANDuchesneCounty,Utah Page 8

2. The netwireshallbe no morethan2-inches abovetheground. The barbedwireshallbe 3-inchesabovethenetwire. Totalheightofthefenceshallbe at least42-inches.

3. Cornerpostsshallbe cementedand/orbracedinsucha mannertokeep thefencetightat alltimes.

4. Standardsteel,wood,orpipepostsshallbe usedbetweenthecornerbraces.Maximumdistancebetweenanytwopostsshallbe nogreaterthan16feet.

5. Allwireshallbe stretched,byusinga stretchingdevice,beforeitis attachedtothecornerposts.

i. The reservepitfencingwillbe onthreesidesduringdrillingoperationsandonthefourthsidewhentherigmovesoffthelocation.Pitswillbe fencedandmaintaineduntilcleanup.

10. PLANSFORRESTORATIONOFSURFACE

ProducingLocation

a. Immediatelyuponwellcompletion,thelocationandsurroundingareawillbe clearedofallunusedtubing,equipment,debris,materials,trashandjunknotrequiredforproduction.

b. Immediatelyuponwel\completion,anyhydrocarbonsonthepitshallbe removedinaccordancewith43 CFR3162.7-1.

c. Ifa plasticnylonreinforcedlineris useditshallbe tornandperforatedbeforebackfillingofthereservepit.

d. The reservepitandthatportionofthelocationnotneededforproductionfacilitiesoroperationswillbe recontouredtotheapproximatenaturalcontours.The reservepitwillbereclaimedwithin120daysfromthedate ofwellcompletion.Beforeanydirtworktakesplace,thereservepitmusthaveallfluidsandhydrocarbonsremovedandallcans,barrels,pipe,etc.,willbe removed.

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand 460' FWLSWNWSection5, T11S- R17E SURFACEUSEPLANDuchesneCounty,Utah Page 8

2. The netwireshallbe no morethan2-inches abovetheground. The barbedwireshallbe 3-inchesabovethenetwire. Totalheightofthefenceshallbe at least42-inches.

3. Cornerpostsshallbe cementedand/orbracedinsucha mannertokeep thefencetightat alltimes.

4. Standardsteel,wood,orpipepostsshallbe usedbetweenthecornerbraces.Maximumdistancebetweenanytwopostsshallbe nogreaterthan16feet.

5. Allwireshallbe stretched,byusinga stretchingdevice,beforeitis attachedtothecornerposts.

i. The reservepitfencingwillbe onthreesidesduringdrillingoperationsandonthefourthsidewhentherigmovesoffthelocation.Pitswillbe fencedandmaintaineduntilcleanup.

10. PLANSFORRESTORATIONOFSURFACE

ProducingLocation

a. Immediatelyuponwellcompletion,thelocationandsurroundingareawillbe clearedofallunusedtubing,equipment,debris,materials,trashandjunknotrequiredforproduction.

b. Immediatelyuponwel\completion,anyhydrocarbonsonthepitshallbe removedinaccordancewith43 CFR3162.7-1.

c. Ifa plasticnylonreinforcedlineris useditshallbe tornandperforatedbeforebackfillingofthereservepit.

d. The reservepitandthatportionofthelocationnotneededforproductionfacilitiesoroperationswillbe recontouredtotheapproximatenaturalcontours.The reservepitwillbereclaimedwithin120daysfromthedate ofwellcompletion.Beforeanydirtworktakesplace,thereservepitmusthaveallfluidsandhydrocarbonsremovedandallcans,barrels,pipe,etc.,willbe removed.

ONSHOREORDERNO.1 $ ÖNFIDENTIAL - TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5,T11S- R17E SURFACEUSEPLANDuchesneCounty,Utah Page 9

e. Reclamationofunuseddisturbedareasonthewellpadlaccessroadnolongerneededforoperations,suchas cutslopes,andfillareaswillbe accomplishedbygrading,levelingandseedingas recommendedbytheAuthorizedOfficer.

Seedingwillbe performedimmediatelyafterthelocationhas been reclaimedandthepithas been backfilled,regardlessofthetimeofyear. Seedwi\\be broadcastandwalkedinwitha dozer.

f. Thetopsoilstockpilewillbe seededas soonas thelocationhas been constructedwiththesamerecommendedseedmix.Theseedwillbe walkedinwitha cat.

DryHole

g. Atsuchtimeas thewellis pluggedandabandoned,theoperatorshallsubmitasubsequentreportofabandonmentandBLMwillattachtheappropriatesurfacerehabilitationconditionsofapproval.

InterimSurfaceReclamationwillbe as follows:

1. Immediatelyafterfinalwellcompletion,thelocationandsurroundingareawillbe clearedofallunusedtubing,materials,trash,anddebrisnotrequiredforproductionoperations.

2. Beforeanydirt workassociatedwithlocationrestorationtakesplace,thereservepitshallbe as dryas possible.Alldebrisinthereservepitwillbe removed.Otherwaste andspoilmaterialswillbe disposedofimmediately,weatherpermitting,uponfinalwellcompletion.

3. Ifa synthetic,nylonre-enforced,lineris used, theexcesslinerwillbe cutoffandremovedandtheremaininglinerwillbe tornandperforatedwhilebackfillingthereservepit.Alternatively,thepitwillbe pumpeddry,thelinerfoldedintothepit,andthepitbackfilled.The linerwillbe buriedtoa minimumoffour(4)feet deep.

4. The reservepitwillbe reclaimedwithin180daysfromthedate offinalwellcompletion,weatherpermitting.

5. The reservepitandthatportionofthelocationnotneededforproductionandstoragefacilities,andeverydayproductionoperations,willbe reshapedtotheapproximateoriginalcontourstotheextentpossible.Thiswillbe completedbybackfillingandcrowningthepit

ONSHOREORDERNO.1 $ ÖNFIDENTIAL - TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5,T11S- R17E SURFACEUSEPLANDuchesneCounty,Utah Page 9

e. Reclamationofunuseddisturbedareasonthewellpadlaccessroadnolongerneededforoperations,suchas cutslopes,andfillareaswillbe accomplishedbygrading,levelingandseedingas recommendedbytheAuthorizedOfficer.

Seedingwillbe performedimmediatelyafterthelocationhas been reclaimedandthepithas been backfilled,regardlessofthetimeofyear. Seedwi\\be broadcastandwalkedinwitha dozer.

f. Thetopsoilstockpilewillbe seededas soonas thelocationhas been constructedwiththesamerecommendedseedmix.Theseedwillbe walkedinwitha cat.

DryHole

g. Atsuchtimeas thewellis pluggedandabandoned,theoperatorshallsubmitasubsequentreportofabandonmentandBLMwillattachtheappropriatesurfacerehabilitationconditionsofapproval.

InterimSurfaceReclamationwillbe as follows:

1. Immediatelyafterfinalwellcompletion,thelocationandsurroundingareawillbe clearedofallunusedtubing,materials,trash,anddebrisnotrequiredforproductionoperations.

2. Beforeanydirt workassociatedwithlocationrestorationtakesplace,thereservepitshallbe as dryas possible.Alldebrisinthereservepitwillbe removed.Otherwaste andspoilmaterialswillbe disposedofimmediately,weatherpermitting,uponfinalwellcompletion.

3. Ifa synthetic,nylonre-enforced,lineris used, theexcesslinerwillbe cutoffandremovedandtheremaininglinerwillbe tornandperforatedwhilebackfillingthereservepit.Alternatively,thepitwillbe pumpeddry,thelinerfoldedintothepit,andthepitbackfilled.The linerwillbe buriedtoa minimumoffour(4)feet deep.

4. The reservepitwillbe reclaimedwithin180daysfromthedate offinalwellcompletion,weatherpermitting.

5. The reservepitandthatportionofthelocationnotneededforproductionandstoragefacilities,andeverydayproductionoperations,willbe reshapedtotheapproximateoriginalcontourstotheextentpossible.Thiswillbe completedbybackfillingandcrowningthepit

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S- Ri7E SURFACEUSEPLANDuchesneCounty,Utah Page 10

topreventwaterfromstanding.Topsoilwillbe re-spreaduptotheriganchorpoints,excludingtheareaneeded forproductionand storagefacilitiesandeverydayproductionoperations.Re-seeding,usingappropriatereclamationmethods,willoccurimmediatelyfollowingthere-spreadingoftopsoil,weatherpermitting.TheAuthorizedOfficerwillprovidea seedmixturetore-vegetatethereservepitandotherunuseddisturbedareasatthetimeoftheonsite.

11. SURFACEOWNERSHIP

Access Roads - The majorityoftheaccessroadsaremaintainedbytheCountyRoadDepartmentortheBureauofLandManagement.

Wellpad - Thewellpad is locatedon landsmanagedbytheBLM.

12. OTHERINFORMATION

a. AClassIllarcheologicalsurveywas previouslyconductedbySWCAundertheWilkinRidgeEA.

b. Theoperatoris responsib\eforinformingallpersonsintheareaswhoareassociatedwiththisprojectthattheywillbe subjecttoprosecutionforknowinglydisturbinghistoricorarchaeologicalsites,orforcollectingartifacts.Ifhistoricorarchaeologicalmaterialsareuncoveredduringconstruction,theoperatoris toimmediatelystopworkthatmightfurtherdisturbsuchmaterials,andcontacttheauthorizedofficer(AO).WithinfiveworkingdaystheAOwillinformtheoperatoras to:

-whether thematerialsappeareligiblefortheNationalRegisterofHistoricPlaces;

-the mitigationmeasurestheoperatorwilllikelyhavetoundertakebeforethesitecanbeused (assuminginsitupreservationisnotnecessary);and

-a timeframefortheAOtocompleteandexpeditedreviewunder36 CFR800.11toconfirm,throughtheStateHistoricPreservationOfficer,thatthefindingsoftheAOarecorrectandthatmitigationis appropriate.Iftheoperatorwishes,at anytime,torelocateactivitiestoavoidtheexpenseofmitigationand/orthedelaysassociatedwiththis

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S- Ri7E SURFACEUSEPLANDuchesneCounty,Utah Page 10

topreventwaterfromstanding.Topsoilwillbe re-spreaduptotheriganchorpoints,excludingtheareaneeded forproductionand storagefacilitiesandeverydayproductionoperations.Re-seeding,usingappropriatereclamationmethods,willoccurimmediatelyfollowingthere-spreadingoftopsoil,weatherpermitting.TheAuthorizedOfficerwillprovidea seedmixturetore-vegetatethereservepitandotherunuseddisturbedareasatthetimeoftheonsite.

11. SURFACEOWNERSHIP

Access Roads - The majorityoftheaccessroadsaremaintainedbytheCountyRoadDepartmentortheBureauofLandManagement.

Wellpad - Thewellpad is locatedon landsmanagedbytheBLM.

12. OTHERINFORMATION

a. AClassIllarcheologicalsurveywas previouslyconductedbySWCAundertheWilkinRidgeEA.

b. Theoperatoris responsib\eforinformingallpersonsintheareaswhoareassociatedwiththisprojectthattheywillbe subjecttoprosecutionforknowinglydisturbinghistoricorarchaeologicalsites,orforcollectingartifacts.Ifhistoricorarchaeologicalmaterialsareuncoveredduringconstruction,theoperatoris toimmediatelystopworkthatmightfurtherdisturbsuchmaterials,andcontacttheauthorizedofficer(AO).WithinfiveworkingdaystheAOwillinformtheoperatoras to:

-whether thematerialsappeareligiblefortheNationalRegisterofHistoricPlaces;

-the mitigationmeasurestheoperatorwilllikelyhavetoundertakebeforethesitecanbeused (assuminginsitupreservationisnotnecessary);and

-a timeframefortheAOtocompleteandexpeditedreviewunder36 CFR800.11toconfirm,throughtheStateHistoricPreservationOfficer,thatthefindingsoftheAOarecorrectandthatmitigationis appropriate.Iftheoperatorwishes,at anytime,torelocateactivitiestoavoidtheexpenseofmitigationand/orthedelaysassociatedwiththis

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S- R17E SURFACEUSEPLANDuchesneCounty,Utah Page 11

process,theAOwillassume responsibilityforwhateverrecordationandstabi\\zationoftheexposedmaterialsmaybe required.Otherwise,theoperatorwillbe responsibleformitigationcosts. TheAOwillprovidetechnicalandproceduralguidelinesfortheconductofmitigation.UponverificationfromtheAOthatrequiredmitigationhas beencompleted,theoperatorwillthenbe allowedtoresumeconstruction.

c. Theoperatorwillcontrolnoxiousweedsalongrights-of-wayforroads,pipelines,wellsites,orotherapplicablefacilities.Alistofnoxiousweedsmaybe obtainedfromtheBLM,ortheappropriateCountyExtensionOffice.OnBLMadministeredlanditis requiredthataPesticideUse Proposalshallbe submitted,andgivenapproval,priortotheapplicationofherbicidesorotherpesticidesor possiblehazardouschemicals.

d. Drillingrigsand/orequipmentusedduringdrillingoperationsonthiswellsitewillnotbestackedorstoredonFederalLandsaftertheconclusionofdrillingoperationsorat anyothertimewithoutBLMauthorization.However,ifBLMauthorizationisobtained,it is onlya temporarymeasure.

e. Alllease and/orunitoperationswillbe conductedinsucha mannerthatfullcomplianceismadewithallapplicablelaws,regulations,OnshoreOilandGas Orders,theapprovedplanofoperations,andanyapplicableNoticetoLessees. Theoperatoris fullyresponsiblefortheactionsofhissubcontractors.Acopyoftheseconditionswillbefurnishedthefieldrepresentativetoinsurecompliance.

f. AcompletecopyoftheapprovedAPDshallbe onlocationduringconstructionofthelocationanddrillingactivities.

g. There willbe nodeviationfromtheproposeddrillingand/orworkoverprogramwithoutpriorapprovalfromtheAO.Safedrillingandoperatingpracticesmustbe observed.Allwells,whetherdrilling,producing,suspendedorabandonedwillbe identifiedinaccordancewith43 CFR3162.

h. "SundryNoticeandReporton Wells"(Form3160-5)willbe filedforapprovalforallchangesofplansandotheroperationsinaccordancewith43 CFR3162.3-2.

i. Thispermitwillbe validfora periodofoneyearfromthedate ofapproval.Anextensionperiodmaybe granted,ifrequested,priortotheexpirationoftheoriginalapprovalperiod.Afterpermittermination,a newapplicationwillbe filedforapprovalforanyfutureoperations.

ONSHOREORDERNO.1 NFIDENTIAL- TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5, T11S- R17E SURFACEUSEPLANDuchesneCounty,Utah Page 11

process,theAOwillassume responsibilityforwhateverrecordationandstabi\\zationoftheexposedmaterialsmaybe required.Otherwise,theoperatorwillbe responsibleformitigationcosts. TheAOwillprovidetechnicalandproceduralguidelinesfortheconductofmitigation.UponverificationfromtheAOthatrequiredmitigationhas beencompleted,theoperatorwillthenbe allowedtoresumeconstruction.

c. Theoperatorwillcontrolnoxiousweedsalongrights-of-wayforroads,pipelines,wellsites,orotherapplicablefacilities.Alistofnoxiousweedsmaybe obtainedfromtheBLM,ortheappropriateCountyExtensionOffice.OnBLMadministeredlanditis requiredthataPesticideUse Proposalshallbe submitted,andgivenapproval,priortotheapplicationofherbicidesorotherpesticidesor possiblehazardouschemicals.

d. Drillingrigsand/orequipmentusedduringdrillingoperationsonthiswellsitewillnotbestackedorstoredonFederalLandsaftertheconclusionofdrillingoperationsorat anyothertimewithoutBLMauthorization.However,ifBLMauthorizationisobtained,it is onlya temporarymeasure.

e. Alllease and/orunitoperationswillbe conductedinsucha mannerthatfullcomplianceismadewithallapplicablelaws,regulations,OnshoreOilandGas Orders,theapprovedplanofoperations,andanyapplicableNoticetoLessees. Theoperatoris fullyresponsiblefortheactionsofhissubcontractors.Acopyoftheseconditionswillbefurnishedthefieldrepresentativetoinsurecompliance.

f. AcompletecopyoftheapprovedAPDshallbe onlocationduringconstructionofthelocationanddrillingactivities.

g. There willbe nodeviationfromtheproposeddrillingand/orworkoverprogramwithoutpriorapprovalfromtheAO.Safedrillingandoperatingpracticesmustbe observed.Allwells,whetherdrilling,producing,suspendedorabandonedwillbe identifiedinaccordancewith43 CFR3162.

h. "SundryNoticeandReporton Wells"(Form3160-5)willbe filedforapprovalforallchangesofplansandotheroperationsinaccordancewith43 CFR3162.3-2.

i. Thispermitwillbe validfora periodofoneyearfromthedate ofapproval.Anextensionperiodmaybe granted,ifrequested,priortotheexpirationoftheoriginalapprovalperiod.Afterpermittermination,a newapplicationwillbe filedforapprovalforanyfutureoperations.

ONSHOREORDERNO.1 È ÖNFIDENTIAL - TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5,T11S- Ri7E SURFACEUSEPLANDuchesneCounty,Utah Page 12

j. TheoperatororhiscontractorshallcontacttheBLMOfficesat435/781-440048 hourspriortoconstructionactivities.

k. The BLMOfficeshallbe notifieduponsitecompletionpriortomovingonthedrillingrig.

13. LESSEE'SOROPERATOR'SREPRESENTATIVEANDCERTIFICATION

PermitMatters Drilling&CompletionMatters

PERMITCOINC. Gasco Production Company14421CountyRoad 10 8 InvernessDriveEast,Suite100Ft.Lupton,CO80621 Englewood,CO80112303/857-9999(0) John Longwell303/857-0577(F) 303/483-0044(0)LisaSmith 303/483-0011(F)

ShawnElworthyRoosevelt,UT(Cell)435-823-4272

CERTIFICATION

l herebycertifythatI,orpersonsundermydirectsupervision,have inspectedtheproposeddrillsiteandaccessroute;thatIamfamiliarwiththeconditionswhichpresentlyexist;thatthestatementsmadeinthisplanare,tothebest ofmyknowledge,trueandcorrect;and,thattheworkassociatedwiththeoperationsproposedhereinwillbe performedbyGascoProductionCompanyanditscontractorsandsubcontractorsinconformitywiththeplanandthetermsandconditionsunderwhichitis approved.

Thisstatementis subjecttotheprovisionsof18.U.S.C.1001forthefilingofa falsestatement.

March19,2007 «M.,y

Date: LisaSmith- PERMlÝCOINC.AuthorizedAgentfor:GascoProductionCompany

ONSHOREORDERNO.1 È ÖNFIDENTIAL - TIGHTHOLEGascoProductionCompanyWilkinRidge Federal#12-5-11-17 Lease No.UTU-756721876'FNLand460' FWLSWNWSection5,T11S- Ri7E SURFACEUSEPLANDuchesneCounty,Utah Page 12

j. TheoperatororhiscontractorshallcontacttheBLMOfficesat435/781-440048 hourspriortoconstructionactivities.

k. The BLMOfficeshallbe notifieduponsitecompletionpriortomovingonthedrillingrig.

13. LESSEE'SOROPERATOR'SREPRESENTATIVEANDCERTIFICATION

PermitMatters Drilling&CompletionMatters

PERMITCOINC. Gasco Production Company14421CountyRoad 10 8 InvernessDriveEast,Suite100Ft.Lupton,CO80621 Englewood,CO80112303/857-9999(0) John Longwell303/857-0577(F) 303/483-0044(0)LisaSmith 303/483-0011(F)

ShawnElworthyRoosevelt,UT(Cell)435-823-4272

CERTIFICATION

l herebycertifythatI,orpersonsundermydirectsupervision,have inspectedtheproposeddrillsiteandaccessroute;thatIamfamiliarwiththeconditionswhichpresentlyexist;thatthestatementsmadeinthisplanare,tothebest ofmyknowledge,trueandcorrect;and,thattheworkassociatedwiththeoperationsproposedhereinwillbe performedbyGascoProductionCompanyanditscontractorsandsubcontractorsinconformitywiththeplanandthetermsandconditionsunderwhichitis approved.

Thisstatementis subjecttotheprovisionsof18.U.S.C.1001forthefilingofa falsestatement.

March19,2007 «M.,y

Date: LisaSmith- PERMlÝCOINC.AuthorizedAgentfor:GascoProductionCompany

PIPELlNEINFORMATIONWilkinRidgeFederal #12-5-11-17

1. The typeofpipelineisa singlewellflowline.

2. Theoutsidediameter(O.D.)ofallwillbe 8 inchesmaximum.

3. Theanticipatedproductionthroughthelineis approximately2000MCFperday.

4. Theanticipatedmaximumtestpressure is 1000psi.

5. Theanticipatedoperatingpressureis 100-200psi.

6. The typeofpipeis steel.

7. Themethodofcouplingiswelded.

8. Thepipelinewillbe buriedat alllowwatercrossings.

9. Therearenootherpipelinestobe associatedinsamerightofway.

10. There willbe otherobjectstobe associatedin thesamerightof way. (Risers,Pig LaunchersPigTraps,metersandotherappurtenancesas required.)

11. The totallengthofpipelineis approximately9850'feet - see MapD

12. The linewillbe laidonsurfaceinordertomonitorpipelineintegrity.Atdrainagecrossings,thelinewillbe elevatedso thatwaterflowis notimpeded.

13. Theconstructionwidthfortotalsurfacedisturbingactivitiesis 30 feet.

14. The estimatedtotalacreageinvolvingallsurfacedisturbingactivitiesis 6.78acres.

15. Anysurfacedisturbancecreatedas a resultofthepipelineconstructionwillbe reclaimedutilizingthereclamationproceduresandseedmixturespecifiedbytheBureauofLandManagement.

16. The linewillbe testedwithgaspressureto1000psi.

PIPELlNEINFORMATIONWilkinRidgeFederal #12-5-11-17

1. The typeofpipelineisa singlewellflowline.

2. Theoutsidediameter(O.D.)ofallwillbe 8 inchesmaximum.

3. Theanticipatedproductionthroughthelineis approximately2000MCFperday.

4. Theanticipatedmaximumtestpressure is 1000psi.

5. Theanticipatedoperatingpressureis 100-200psi.

6. The typeofpipeis steel.

7. Themethodofcouplingiswelded.

8. Thepipelinewillbe buriedat alllowwatercrossings.

9. Therearenootherpipelinestobe associatedinsamerightofway.

10. There willbe otherobjectstobe associatedin thesamerightof way. (Risers,Pig LaunchersPigTraps,metersandotherappurtenancesas required.)

11. The totallengthofpipelineis approximately9850'feet - see MapD

12. The linewillbe laidonsurfaceinordertomonitorpipelineintegrity.Atdrainagecrossings,thelinewillbe elevatedso thatwaterflowis notimpeded.

13. Theconstructionwidthfortotalsurfacedisturbingactivitiesis 30 feet.

14. The estimatedtotalacreageinvolvingallsurfacedisturbingactivitiesis 6.78acres.

15. Anysurfacedisturbancecreatedas a resultofthepipelineconstructionwillbe reclaimedutilizingthereclamationproceduresandseedmixturespecifiedbytheBureauofLandManagement.

16. The linewillbe testedwithgaspressureto1000psi.

O OGASCO PRODUCTION COMPANYWILKIN RIDGE FEDERAL #12-5-11-17

LOCATED IN DUCHESNE COUNTY, UTAHSECTION 5, T11S, R17E, S.L.B.&M.

PHOTO: VIEW FROM CORNER #5 TO LOCATION STAKE CAMERA ANGLE: NORTHWESTERLY

PHOTO: VIEW FROM BEGINNING OF PROPOSED ACCESS ROAD CAMERA ANGLE: SOUTHWESTERLY

Uintah Engineering & Land Survegng LOCATION PHOTOS 08 07 06 PHOTO85 South 200 East Vemal, Utah 84078 * ^*

smee19e .

435-789-1017 [email protected] TAKENBY:J.W. DRAWNBY:C.P. :

O OGASCO PRODUCTION COMPANYWILKIN RIDGE FEDERAL #12-5-11-17

LOCATED IN DUCHESNE COUNTY, UTAHSECTION 5, T11S, R17E, S.L.B.&M.

PHOTO: VIEW FROM CORNER #5 TO LOCATION STAKE CAMERA ANGLE: NORTHWESTERLY

PHOTO: VIEW FROM BEGINNING OF PROPOSED ACCESS ROAD CAMERA ANGLE: SOUTHWESTERLY

Uintah Engineering & Land Survegng LOCATION PHOTOS 08 07 06 PHOTO85 South 200 East Vemal, Utah 84078 * ^*

smee19e .

435-789-1017 [email protected] TAKENBY:J.W. DRAWNBY:C.P. :

PROPOSED LOCATION:WILKIN RIDGE FEDERAL #12-5-11-17

LEGEND: GASCO PRODUCTION COMPANYPROPOSED LOCATION N WILKIN RIDGE FEDERAL #12-5-11-17

SECTION 5, T118, R17E, S.L.B.&M.1876' FNL 460' FWL

- Uintah Engineering & Land Surveying TOPOGR A PH I e 08 07 0685 South 200 East Vernal, Utah 84078 M A P(435) 789-1017 * FAX (435) 789-1813 ONTH DAY YEARSCALE:1:100,00 DRAWNBY:C.P. VISED:

PROPOSED LOCATION:WILKIN RIDGE FEDERAL #12-5-11-17

LEGEND: GASCO PRODUCTION COMPANYPROPOSED LOCATION N WILKIN RIDGE FEDERAL #12-5-11-17

SECTION 5, T118, R17E, S.L.B.&M.1876' FNL 460' FWL

- Uintah Engineering & Land Surveying TOPOGR A PH I e 08 07 0685 South 200 East Vernal, Utah 84078 M A P(435) 789-1017 * FAX (435) 789-1813 ONTH DAY YEARSCALE:1:100,00 DRAWNBY:C.P. VISED:

PROPOSED LOCATION:

LEGEND: GASCO PRODUCTION COMPANYEXISTINGROAD N WILKIN RIDGE FEDERAL #12-5-11-17

----------•-- PROPOSED ACCESS ROAD SECTION 5, T11S, R17E, S.L.B.&M.

B1876' FNL 460' FWL

Uintah Engineering & Land Surveying TOPOGR A PH i c 08 0 06 m25 Soutta 2Oo ICast Vernal, Utn h 84078 NI A Ÿ 0 DAY YEAR(435) 789-1017 * FAX (435) 789-1813SCALE:1" = 2000' DRAWNRY:C.P. ED:

PROPOSED LOCATION:

LEGEND: GASCO PRODUCTION COMPANYEXISTINGROAD N WILKIN RIDGE FEDERAL #12-5-11-17

----------•-- PROPOSED ACCESS ROAD SECTION 5, T11S, R17E, S.L.B.&M.

B1876' FNL 460' FWL

Uintah Engineering & Land Surveying TOPOGR A PH i c 08 0 06 m25 Soutta 2Oo ICast Vernal, Utn h 84078 NI A Ÿ 0 DAY YEAR(435) 789-1017 * FAX (435) 789-1813SCALE:1" = 2000' DRAWNRY:C.P. ED:

N

LEGEND: GASCO PRODUCTION COMPANYf DISPOSAL WELLS WATERWELL$ N WILKIN RIDGE FEDERAL #12-5-11-17e PRODUCING WELLS ABANDONED WELLs SECTION 5, T11S, R17E, S.L.B.& M.

SHUT IN WELLS TEMPORARILY ABANDONED 1876' FNL 460'

N

LEGEND: GASCO PRODUCTION COMPANYf DISPOSAL WELLS WATERWELL$ N WILKIN RIDGE FEDERAL #12-5-11-17e PRODUCING WELLS ABANDONED WELLs SECTION 5, T11S, R17E, S.L.B.& M.

SHUT IN WELLS TEMPORARILY ABANDONED 1876' FNL 460'

E E

PROPOSED LOCATIONDGE

7.

'6"

APPROXIMATE TOTAL PlPELINE DISTANCE = 9,850' +/-

LEGEND: GASCO PRODUCTION COMPANYPROPOSED ACCESS ROAD N WILKIN RIDGE FEDERAL #12-5-11-17

---------- EXISTINGPIPELINE SECTION 5, T1]S, RI7E, S.L.B.&M.----------- PROPOSED PIPELINE1876' FNL 460' FWL

M Uintah Engineering & Land Surveying TOPOGR A PH I C 08 0 06 ¡85 South 200 East Vernal, Utala 84078 I A MONTH DAY YEAR j(435) 789-1017 * FAX (435) 789-1813SCALE:1"- 2000' DRAWNBY:C.R REVISED:

E E

PROPOSED LOCATIONDGE

7.

'6"

APPROXIMATE TOTAL PlPELINE DISTANCE = 9,850' +/-

LEGEND: GASCO PRODUCTION COMPANYPROPOSED ACCESS ROAD N WILKIN RIDGE FEDERAL #12-5-11-17

---------- EXISTINGPIPELINE SECTION 5, T1]S, RI7E, S.L.B.&M.----------- PROPOSED PIPELINE1876' FNL 460' FWL

M Uintah Engineering & Land Surveying TOPOGR A PH I C 08 0 06 ¡85 South 200 East Vernal, Utala 84078 I A MONTH DAY YEAR j(435) 789-1017 * FAX (435) 789-1813SCALE:1"- 2000' DRAWNBY:C.R REVISED:

GASCO PRODUCTIONCOMPANYLOCATIONLAYOUTFOR

WILKINRIDGEFEDERAL#12-·5-11-17SECTION5, T11S, R17E, S.L.B.&M.4 C--8.7' 1876' FNL 460' FR

Proposed Access e .

EL J28.2For /J4-6-11-17

7

90 Approx. \ 65' Sta. J+80 Approx.Top ofs Toe ofCut Slope Û¯

•, .Fill SlopeE/. J24. 1

SCALE: 1" = 50'DATE: 08-04-06

oDrawn By L.K.REVISED: 03-19-07

I I I I

MRE PIT PIPE RACKS

a ;2e c-8.6' C--J.9'DE BENCH E/. J2J.4'

. 20'.

75'45

150' Sta. 1+80--- Existing -- F--9.0'- orarnog.-y-

a sto.s'

Totd PM ¢cpacky - - PUMPW/J' of free6oani - -

- 14400 80/s. ± - - MUDSHEDTotd PIt Vdume o- 4710 Os. Yok

TOILETO--

HOPPER

POWER

---- fro' o..p)FUEL sta, ç;-g STORAGE--- RESERVE P/75 ---

-- --"

TANK

------

Round Cornersos Meed

00. 21. JJf.6' - Í.

-22 j' 20° WIDEBENCH 4,

Proposed Access F- /Û.4'(btrn. pit), . Road E/. JOJ t'E/ex Ungraded Ground at Locadan Stoke = ÛJ .4,

UI AH ENGINEERING & LAND SURVEYINGElev. Graded Ground at Location Stake = 6319.5 es s. no a.., • v.s..r. rn.» esore • reor)

GASCO PRODUCTIONCOMPANYLOCATIONLAYOUTFOR

WILKINRIDGEFEDERAL#12-·5-11-17SECTION5, T11S, R17E, S.L.B.&M.4 C--8.7' 1876' FNL 460' FR

Proposed Access e .

EL J28.2For /J4-6-11-17

7

90 Approx. \ 65' Sta. J+80 Approx.Top ofs Toe ofCut Slope Û¯

•, .Fill SlopeE/. J24. 1

SCALE: 1" = 50'DATE: 08-04-06

oDrawn By L.K.REVISED: 03-19-07

I I I I

MRE PIT PIPE RACKS

a ;2e c-8.6' C--J.9'DE BENCH E/. J2J.4'

. 20'.

75'45

150' Sta. 1+80--- Existing -- F--9.0'- orarnog.-y-

a sto.s'

Totd PM ¢cpacky - - PUMPW/J' of free6oani - -

- 14400 80/s. ± - - MUDSHEDTotd PIt Vdume o- 4710 Os. Yok

TOILETO--

HOPPER

POWER

---- fro' o..p)FUEL sta, ç;-g STORAGE--- RESERVE P/75 ---

-- --"

TANK

------

Round Cornersos Meed

00. 21. JJf.6' - Í.

-22 j'20° WIDEBENCH 4

,

Proposed Access F- /Û.4'(btrn. pit), . Road E/. JOJ t'E/ex Ungraded Ground at Locadan Stoke = ÛJ .4,

UI AH ENGINEERING & LAND SURVEYINGElev. Graded Ground at Location Stake = 6319.5 es s. no a.., • v.s..r. rn.» esore • reor)

ASCO PRODUCTION COMP YTYPICALCROSS SECTIONSFORo

x-section WILKINRIDGEFEDERAL#12-5-11-17scaleSECTION5, T11S, R17E, S.L.B.&M.

1" = 50',

1876' FNL 460' FWL * o'DATE: 08-04--06

Drawn By L.K.PreconstructionGrade

65 150h

UT---.-...... /LL

SM. J+80

75' 45 150'

LOCAT/ON STAKE

SM 1 80

75 45' 150'

Slope=1 1/2: 1

CUTll llEllEll

S M. O 55.I

130' 150'

Finished Grade

NOTE: --

/LLTopsoil should not beStripped Below Finished SM 0+00Grade on Substructure Area.

* NOTEF/LL QUANT/TY/NCLUDESAPPROXIMATEYARDAGES 5% EOR COMPACT/ON

CUTEXCESS MATERIAL = 4,150 Cu. Yds.(6") Topsoil Stripping = 2,290 Cu. Yds.Topsoil & Pit Backfill = 4, 150 Cu. Yds.

Remaining Location = 16,080 Cu. Yds. (1/2 Pit Vol.)

EXCESS UNBALANCE = O Cu.Yds.TOTAL CUT = 18,370 CU.YDS. (After Rehabilitation)FILL = 14,220 CU.YDS. (IINTAH ENGINEERING & LAND SURVEYING

86 So. 200 East * Vernal, Utah 84078 * (801)

ASCO PRODUCTION COMP YTYPICALCROSS SECTIONSFORo

x-section WILKINRIDGEFEDERAL#12-5-11-17scaleSECTION5, T11S, R17E, S.L.B.&M.

1" = 50',

1876' FNL 460' FWL * o'DATE: 08-04--06

Drawn By L.K.PreconstructionGrade

65 150h

UT---.-...... /LL

SM. J+80

75' 45 150'

LOCAT/ON STAKE

SM 1 80

75 45' 150'

Slope=1 1/2: 1

CUTll llEllEll

S M. O 55.I

130' 150'

Finished Grade

NOTE: --

/LLTopsoil should not beStripped Below Finished SM 0+00Grade on Substructure Area.

* NOTEF/LL QUANT/TY/NCLUDESAPPROXIMATEYARDAGES 5% EOR COMPACT/ON

CUTEXCESS MATERIAL = 4,150 Cu. Yds.(6") Topsoil Stripping = 2,290 Cu. Yds.Topsoil & Pit Backfill = 4, 150 Cu. Yds.

Remaining Location = 16,080 Cu. Yds. (1/2 Pit Vol.)

EXCESS UNBALANCE = O Cu.Yds.TOTAL CUT = 18,370 CU.YDS. (After Rehabilitation)FILL = 14,220 CU.YDS. (IINTAH ENGINEERING & LAND SURVEYING

86 So. 200 East * Vernal, Utah 84078 * (801)

O O

FEDERALSTIPULATIONS

Anyfederalstipulationswhichapplytothislease willbe attachedas a conditionofapprovalbythe BLM.

PEIL

O O

FEDERALSTIPULATIONS

Anyfederalstipulationswhichapplytothislease willbe attachedas a conditionofapprovalbythe BLM.

PEIL

O O

Archeology/Paleontology/Botany

AllsurveyswerepreviouslyconductedbySWCAundertheWilkinRidgeEA.

O O

Archeology/Paleontology/Botany

AllsurveyswerepreviouslyconductedbySWCAundertheWilkinRidgeEA.

WORKSHEETAPPLICATION FOR PERMIT TO DRILL

APD RECEIVED: 07/23/2007 API NO. ASSIGNED: 43-013-33729

WELL NAME: WILKIN RIDGE FED 12-5-11-17

OPERATOR: GASCO PRODUCTION ( N2575 ) PHONE NUMBER: 303-857-9999

CONTACT: VENESSA LANGMACHER

PROPOSED LOCATION: INSPECT LOCATN BY: / /SWNW 05 110S 170E . .Tech Review Initials DateSURFACE: 1876 FNL 0460 FWL

BOTTOM: 1876 FNL 0460 FWL Engineering

COUNTY: DUCHESNEGeology

LATITUDE: 39.88805 LONGITUDE: -110.0429

UTM SURF EASTINGS:581833 NORTHINGS: 4415561 Surface

FIELD NAME: WILDCAT ( 1 )

LEASE TYPE: 1 - Federal

LEASE NUMBER: UTU-75672 PROPOSED FORMATION: BLKHK

SURFACE OWNER: 1 - Federal COALBED METHANE WELL? NO

RECEIVED AND/OR REVIEWED: LOCATION AND SITING:

\/' Plat R649-2-3.

/' Bond: Fed[1] Ind[] Sta[] Fee[]Unit: WILKIN RIDGE DEEP

(No.UT-1233 )Potash (Y/N) ,y

R649-3-2. General

Oil Shale 190-5 (B) or 190-3 or 190-13 Siting:460 From Qtr/Qtr & 920'Between Wells

Water Permit R649-3-3. Exception

(No. 43-1721 )Drilling Unit

RDCC Review (Y/N)Board Cause No:(Date: )Eff Date:

Fee Surf Agreement (Y/N) Siting:

Intent to Commingle (Y/N) R649-3-11. Directional Drill

COMMENTS:

WORKSHEETAPPLICATION FOR PERMIT TO DRILL

APD RECEIVED: 07/23/2007 API NO. ASSIGNED: 43-013-33729

WELL NAME: WILKIN RIDGE FED 12-5-11-17

OPERATOR: GASCO PRODUCTION ( N2575 ) PHONE NUMBER: 303-857-9999

CONTACT: VENESSA LANGMACHER

PROPOSED LOCATION: INSPECT LOCATN BY: / /SWNW 05 110S 170E . .Tech Review Initials DateSURFACE: 1876 FNL 0460 FWL

BOTTOM: 1876 FNL 0460 FWL Engineering

COUNTY: DUCHESNEGeology

LATITUDE: 39.88805 LONGITUDE: -110.0429

UTM SURF EASTINGS:581833 NORTHINGS: 4415561 Surface

FIELD NAME: WILDCAT ( 1 )

LEASE TYPE: 1 - Federal

LEASE NUMBER: UTU-75672 PROPOSED FORMATION: BLKHK

SURFACE OWNER: 1 - Federal COALBED METHANE WELL? NO

RECEIVED AND/OR REVIEWED: LOCATION AND SITING:

\/' Plat R649-2-3.

/' Bond: Fed[1] Ind[] Sta[] Fee[]Unit: WILKIN RIDGE DEEP

(No.UT-1233 )Potash (Y/N) ,y

R649-3-2. General

Oil Shale 190-5 (B) or 190-3 or 190-13 Siting:460 From Qtr/Qtr & 920'Between Wells

Water Permit R649-3-3. Exception

(No. 43-1721 )Drilling Unit

RDCC Review (Y/N)Board Cause No:(Date: )Eff Date:

Fee Surf Agreement (Y/N) Siting:

Intent to Commingle (Y/N) R649-3-11. Directional Drill

COMMENTS:

WRKIN REDGEST 2+ 3glo 17 WH,KINRIDGE

ST 44 32 10-17

T105 R17ET11SR17E

FEMUREtus sT +

wnxmREGE 35-05

WILKIN RIDGEWILKINRIDGE FED12+11-17FED12+tt-u

WREIN RIDGEFED 14+fi-B

WILKIN RIDGE (DEEP) UNIT

OPERATOR: GASCO PROD CO (N2575)

SEC• 5 T.11S R.17E

FIELD: WILDCAT (001)

COUNTY: DUCHESNE

SPACING:R649-3-2/GENERALSITINGWell

ADOE IOEN Utah OilGas and Miningv LOCATION ABANDONED

NEW LOCATION NField Status Unit Status PLUGGED deABANDONEDABANDONED

C¯ EXPLORATORY PRODUCING GASACTIVE GAS STORAGE PRODUCING OILNF PP OIL 4 SHUT-IN GASCOMBINED NFSECONDARY

÷ SHUT-INOIL W EINACTIVE NODING

)s( TEMP. ABANDONED

NA TED PP HERML AAS LN

ECTION SPP OIL g WATER SUPPLY PREPARED BY: DIANA MASONSECONDARY WATER DISPOSAL DATE:25]ULY-2007TERMINATED

WRKIN REDGEST 2+ 3glo 17 WH,KINRIDGE

ST 44 32 10-17

T105 R17ET11SR17E

FEMUREtus sT +

wnxmREGE 35-05

WILKIN RIDGEWILKINRIDGE FED12+11-17FED12+tt-u

WREIN RIDGEFED 14+fi-B

WILKIN RIDGE (DEEP) UNIT

OPERATOR: GASCO PROD CO (N2575)

SEC• 5 T.11S R.17E

FIELD: WILDCAT (001)

COUNTY: DUCHESNE

SPACING:R649-3-2/GENERALSITINGWell

ADOE IOEN Utah OilGas and Miningv LOCATION ABANDONED

NEW LOCATION NField Status Unit Status PLUGGED deABANDONEDABANDONED

C¯ EXPLORATORY PRODUCING GASACTIVE GAS STORAGE PRODUCING OILNF PP OIL 4 SHUT-IN GASCOMBINED NFSECONDARY

÷ SHUT-INOIL W EINACTIVE NODING

)s( TEMP. ABANDONED

NA TED PP HERML AAS LN

ECTION SPP OIL g WATER SUPPLY PREPARED BY: DIANA MASONSECONDARY WATER DISPOSAL DATE:25]ULY-2007TERMINATED

O OUnited States Department of the Interior

BUREAU OF LAND MANAGEMENTUtah State Office

P.O. Box 45155Salt Lake City, Utah 84145-0155

IN REPLY REFER TO:3160(UT-922)

July 25, 2007

Memorandum

To: Assistant District Manager Minerals, Vernal District

From: Michael Coulthard, Petroleum Engineer

Subject: 2007 Plan of Development Wilkin Ridge Unit,Duchesne and Uintah County, Utah.

Pursuant to email between Diana Whitney, Division of Oil, Gas andMining, and Mickey Coulthard, Utah State Office, Bureau of LandManagement, the following well is planned for calendar year 2007within the Wilkin Ridge Unit, Duchesne County, Utah.

API# WELLNAME LOCATION

(Proposed PZ Blackhawk)

43-013-33729 Wilkin Ridge Fed 12-5-11-17 Sec 5 T11S R17E 1876 FNL 0460 FWL

This office has no objection to permitting the well at this time.

/s/ Michael L. Coulthard

bcc: File - Wilkin Ridge UnitDivision of Oil Gas and MiningCentral FilesAgr. Sec. ChronFluid Chron

O OUnited States Department of the Interior

BUREAU OF LAND MANAGEMENTUtah State Office

P.O. Box 45155Salt Lake City, Utah 84145-0155

IN REPLY REFER TO:3160(UT-922)

July 25, 2007

Memorandum

To: Assistant District Manager Minerals, Vernal District

From: Michael Coulthard, Petroleum Engineer

Subject: 2007 Plan of Development Wilkin Ridge Unit,Duchesne and Uintah County, Utah.

Pursuant to email between Diana Whitney, Division of Oil, Gas andMining, and Mickey Coulthard, Utah State Office, Bureau of LandManagement, the following well is planned for calendar year 2007within the Wilkin Ridge Unit, Duchesne County, Utah.

API# WELLNAME LOCATION

(Proposed PZ Blackhawk)

43-013-33729 Wilkin Ridge Fed 12-5-11-17 Sec 5 T11S R17E 1876 FNL 0460 FWL

This office has no objection to permitting the well at this time.

/s/ Michael L. Coulthard

bcc: File - Wilkin Ridge UnitDivision of Oil Gas and MiningCentral FilesAgr. Sec. ChronFluid Chron

State UtahDEPARTMENT OF NATURAL RESOURCES

MICHAEL R. STYLERExecutive Director

JON M. HUNTSMAN, JaDivision of Oil Gas and Mining

Governor JOHN R BAZADivision Director

GARY R. HERBERTLieutenant Governor

July 26, 2007

Gasco Production Company8 Inverness Drive East, Suite 100Englewood, CO 80112

Re: Wilkin Ridge Federal 12-5-11-17 Well, 1876' FNL, 460' FWL, SW NW, Sec. 5,T. 11 South, R. 17 East, Duchesne County, Utah

Gentlemen:

Pursuant to the provisions and requirements of Utah Code Ann.§ 40-6-1 et seq., UtahAdministrative Code R649-3-1 et seq., and the attached Conditions of Approval, approval to drillthe referenced well is granted.

This approval shall expire one year from the above date unless substantial and continuousoperation is underway, or a request for extension is made prior to the expiration date. The APIidentification number assigned to this well is 43-013-33729.

Sincerely,

Gil HuntAssociate Director

pabEnclosures

cc: Duchesne County AssessorBureau of Land Management, Vernal Office

UTAH

DNR

1594 West North Temple, Suite 1210, PO Box 145801, Salt Lake City, UT 84114-5801telephone (801) 538-5340 • facsimile (801) 359-3940 • TTY (801) 538-7458 • wwwogm.utah.gov OIL, GAS &

State UtahDEPARTMENT OF NATURAL RESOURCES

MICHAEL R. STYLERExecutive Director

JON M. HUNTSMAN, JaDivision of Oil Gas and Mining

Governor JOHN R BAZADivision Director

GARY R. HERBERTLieutenant Governor

July 26, 2007

Gasco Production Company8 Inverness Drive East, Suite 100Englewood, CO 80112

Re: Wilkin Ridge Federal 12-5-11-17 Well, 1876' FNL, 460' FWL, SW NW, Sec. 5,T. 11 South, R. 17 East, Duchesne County, Utah

Gentlemen:

Pursuant to the provisions and requirements of Utah Code Ann.§ 40-6-1 et seq., UtahAdministrative Code R649-3-1 et seq., and the attached Conditions of Approval, approval to drillthe referenced well is granted.

This approval shall expire one year from the above date unless substantial and continuousoperation is underway, or a request for extension is made prior to the expiration date. The APIidentification number assigned to this well is 43-013-33729.

Sincerely,

Gil HuntAssociate Director

pabEnclosures

cc: Duchesne County AssessorBureau of Land Management, Vernal Office

UTAH

DNR

1594 West North Temple, Suite 1210, PO Box 145801, Salt Lake City, UT 84114-5801telephone (801) 538-5340 • facsimile (801) 359-3940 • TTY (801) 538-7458 • wwwogm.utah.gov OIL, GAS &

Operator: Gasco Production CompanyWell Name & Number Wilkin Ridge Federal 12-5-11-17

API Number: 43-013-33729Lease: UTU-75672

Location: SW NW Sec._5_ T. 11 South R. 17 East

Conditions of Approval

1. GeneralCompliance with the requirements of Utah Admin. R. 649-1 et seq., the Oil and GasConservation General Rules, and the applicable terms and provisions of the approvedApplication for permit to drill.

2. Notification RequirementsNotify the Division within 24 hours of spudding the well.

• Contact Carol Daniels at (801) 538-5284.

Notify the Division prior to commencing operations to plug and abandon the well.• Contact Dustin Doucet at (801) 538-5281 office (801) 733-0983 home

3. Reporting RequirementsAll required reports, forms and submittals will be promptly filed with the Division,including but not limited to the Entity Action Form (Form 6), Report of WaterEncountered During Drilling (Form 7), Weekly Progress Reports for drilling andcompletion operations, and Sundry Notices and Reports on Wells requesting approval ofchange of plans or other operational actions.

4. State approval of this well does not supersede the required federal approval, which must beobtained prior to drilling.

5. This proposed well is located in an area for which drilling units (well spacing patterns) havenot been established through an order of the Board of Oil, Gas and Mining (the "Board").In order to avoid the possibility of waste or injury to correlative rights, the operator isrequested, once the well has been drilled, completed, and has produced, to analyzegeological and engineering data generated therefrom, as well as any similar data fromsurrounding areas if available. As soon as is practicable after completion of its analysis,and if the analysis suggests an area larger than the quarter-quarter section upon which thewell is located is being drained, the operator is requested to seek an appropriate orderfrom the Board establishing drilling and spacing units in conformance with such analysisby filing a Request for Agency Action with the

Operator: Gasco Production CompanyWell Name & Number Wilkin Ridge Federal 12-5-11-17

API Number: 43-013-33729Lease: UTU-75672

Location: SW NW Sec._5_ T. 11 South R. 17 East

Conditions of Approval

1. GeneralCompliance with the requirements of Utah Admin. R. 649-1 et seq., the Oil and GasConservation General Rules, and the applicable terms and provisions of the approvedApplication for permit to drill.

2. Notification RequirementsNotify the Division within 24 hours of spudding the well.

• Contact Carol Daniels at (801) 538-5284.

Notify the Division prior to commencing operations to plug and abandon the well.• Contact Dustin Doucet at (801) 538-5281 office (801) 733-0983 home

3. Reporting RequirementsAll required reports, forms and submittals will be promptly filed with the Division,including but not limited to the Entity Action Form (Form 6), Report of WaterEncountered During Drilling (Form 7), Weekly Progress Reports for drilling andcompletion operations, and Sundry Notices and Reports on Wells requesting approval ofchange of plans or other operational actions.

4. State approval of this well does not supersede the required federal approval, which must beobtained prior to drilling.

5. This proposed well is located in an area for which drilling units (well spacing patterns) havenot been established through an order of the Board of Oil, Gas and Mining (the "Board").In order to avoid the possibility of waste or injury to correlative rights, the operator isrequested, once the well has been drilled, completed, and has produced, to analyzegeological and engineering data generated therefrom, as well as any similar data fromsurrounding areas if available. As soon as is practicable after completion of its analysis,and if the analysis suggests an area larger than the quarter-quarter section upon which thewell is located is being drained, the operator is requested to seek an appropriate orderfrom the Board establishing drilling and spacing units in conformance with such analysisby filing a Request for Agency Action with the

STATE OF UTAH FORM 9DEPARTMENT OF NATURAL RESOURCES

DIVISION OF OIL, GAS AND MI 5. LEASE DESIGNATION AND SERIAL NUMBER:

UTU-75672

SUNDRY NOTICES AND REPORTS ON WELLS Ni NDIAN,ALLOTTEE OR TRIBE NAME:

7. UNIT or CA AGREEMENT NAME:Do not use this form for proposals to drill new wells, significantly deepen existing wells below current bottom-hole depth, reenter plugged wells, or t° NAdrill horizontal laterals. Use APPLICATION FOR PERMIT TO DRILLform for such proposals.

1. TYPE OF WELL 8. WELL NAME and NUMBER:OIL WELL Q GAS WELL 2 OTHER Wilkin Ridge Federal 12-5-11-172. NAME OF OPERATOR: 9. API NUMBER:

Gasco Production Company 43013337293. ADDRESS OF OPERATOR: PHONE NUMBER: 10. FIELD AND POOL, OR WILDCAT:8 invemess Dr E, Ste 100 Englewood se, Co ,,, 80112 (303) 483-0044 Wildcat

4. LOCATION OF WELL

FOOTAGESAT SURFACE: 1876' FNL & 460' FWL COUNTY: DUchesne

QTR/QTR, SECTION, TOWNSHIP, RANGE, MERIDIAN: SWNW 5 11S 17E STATE:UTAH

n CHECK APPROPRIATE BOXES TO INDICATE NATURE OF NOTICE, REPORT, OR OTHER DATATYPE OF SUBMISSION TYPE OF ACTION

O ACIDIZE DEEPEN REPERFORATE CURRENT FORMATIONNOTICE OF INTENT(Submit in Duplicate) ALTER CASING FRACTURE TREAT SIDETRACK TO REPAIR WELL

Approximate date work will start CASING REPAIR NEW CONSTRUCTION TEMPORARILY ABANDON

CHANGE TO PREVIOUS PLANS OPERATOR CHANGE TUBING REPAIR

CHANGE TUBING PLUG AND ABANDON VENT OR FLARE

SUBSEQUENT REPORT CHANGE WELL NAME PLUG BACK WATER DISPOSAL(Submit Original Form Only)

CHANGE WELL STATUS PRODUCTION (START/RESUME) WATER SHUT-OFFDate of work completion:

O COMMINGLE PRODUCINGFORMATIONS RECLAMATIONOF WELL SITE OTHER: Extend PermitO CONVERT WELL TYPE RECOMPLETE - DIFFERENT FORMATION

12 DESCRIBE PROPOSED OR COMPLETED OPERATIONS. Clearly show all pertinent details including dates, depths, volumes, etc.

Gasco Production Company would like to request a one year extension on this APD from the date it is due to expire(7/26/2008)

Approved by theUtah Division of

Oil,Gas and Mining

By:

NAME (PLEAS INT) Beverly Walker TITLE Engineering Technician

SIGNATURE k Ñ L DATE 7/21/2008

(ThisspaceforStateuseonly) RECENEDCOPYSENTTOOPERATOR

JUL25 2008Date:

(5/2000) IflitialS. (See instructions on Reverse Side) gy OFOlL,GAS&

STATE OF UTAH FORM 9DEPARTMENT OF NATURAL RESOURCES

DIVISION OF OIL, GAS AND MI 5. LEASE DESIGNATION AND SERIAL NUMBER:

UTU-75672

SUNDRY NOTICES AND REPORTS ON WELLS Ni NDIAN,ALLOTTEE OR TRIBE NAME:

7. UNIT or CA AGREEMENT NAME:Do not use this form for proposals to drill new wells, significantly deepen existing wells below current bottom-hole depth, reenter plugged wells, or t° NAdrill horizontal laterals. Use APPLICATION FOR PERMIT TO DRILLform for such proposals.

1. TYPE OF WELL 8. WELL NAME and NUMBER:OIL WELL Q GAS WELL 2 OTHER Wilkin Ridge Federal 12-5-11-172. NAME OF OPERATOR: 9. API NUMBER:

Gasco Production Company 43013337293. ADDRESS OF OPERATOR: PHONE NUMBER: 10. FIELD AND POOL, OR WILDCAT:8 invemess Dr E, Ste 100 Englewood se, Co ,,, 80112 (303) 483-0044 Wildcat

4. LOCATION OF WELL

FOOTAGESAT SURFACE: 1876' FNL & 460' FWL COUNTY: DUchesne

QTR/QTR, SECTION, TOWNSHIP, RANGE, MERIDIAN: SWNW 5 11S 17E STATE:UTAH

n CHECK APPROPRIATE BOXES TO INDICATE NATURE OF NOTICE, REPORT, OR OTHER DATATYPE OF SUBMISSION TYPE OF ACTION

O ACIDIZE DEEPEN REPERFORATE CURRENT FORMATIONNOTICE OF INTENT(Submit in Duplicate) ALTER CASING FRACTURE TREAT SIDETRACK TO REPAIR WELL

Approximate date work will start CASING REPAIR NEW CONSTRUCTION TEMPORARILY ABANDON

CHANGE TO PREVIOUS PLANS OPERATOR CHANGE TUBING REPAIR

CHANGE TUBING PLUG AND ABANDON VENT OR FLARE

SUBSEQUENT REPORT CHANGE WELL NAME PLUG BACK WATER DISPOSAL(Submit Original Form Only)

CHANGE WELL STATUS PRODUCTION (START/RESUME) WATER SHUT-OFFDate of work completion:

O COMMINGLE PRODUCINGFORMATIONS RECLAMATIONOF WELL SITE OTHER: Extend PermitO CONVERT WELL TYPE RECOMPLETE - DIFFERENT FORMATION

12 DESCRIBE PROPOSED OR COMPLETED OPERATIONS. Clearly show all pertinent details including dates, depths, volumes, etc.

Gasco Production Company would like to request a one year extension on this APD from the date it is due to expire(7/26/2008)


Oil,Gas and Mining

By:

NAME (PLEAS INT) Beverly Walker TITLE Engineering Technician

SIGNATURE k Ñ L DATE 7/21/2008

(ThisspaceforStateuseonly) RECENEDCOPYSENTTOOPERATOR

JUL25 2008Date:

(5/2000) IflitialS. (See instructions on Reverse Side) gy OFOlL,GAS&

Application for Permit to DrillRequest for Permit Extension

Validation(thisform should accompany the Sundry Notice requesting permit extension)

API: 4301333729Weil Name: Wilkin Ridge Fed 12-5-11-17Location: 1876' FNL & 460' FWL SWNW of Sec 5-T11S-R17E

Company Permit Issued to: Gasco Production CompanyDate Original Permit Issued: 7/26/2007

The undersigned as owner with legal rights to drill on the property as permittedabove, hereby verifies that the information as submitted in the previouslyapproved application to drill, remains valid and does not require revision.

Following is a checklist of some items related to the application, which should beverified.

If located on private land, has the ownership changed, if so, has the surfaceagreement been updated? YesONom

Have any wells been drilled in the vicinity of the proposed well which would affectthe spacing or siting requirements for this location? YesO Nom

Has there been any unit or other agreements put in place that could affect thepermitting or operation of this proposed well? YesO NoO

Have there been any changes to the access route including ownership, or right-of-way, which could affect the proposed location? YesO No IZI

Has the approved source of water for drilling changed? YesO Nol21

Have there been any physical changes to the surface location or access routewhich will require a change in plans from what was discussed at the onsiteevaluation? YesONolZI

Is ding still in place hich covers this proposed welI7?YeslZINoO

Signature Date

Title: Engineering Technician

Representing: Gasco Production Company RECEIVEDJUL25 2008

DIV.0FOIL,GAS&


Validation(thisform should accompany the Sundry Notice requesting permit extension)

API: 4301333729Weil Name: Wilkin Ridge Fed 12-5-11-17

Location: 1876' FNL & 460' FWL SWNW of Sec 5-T11S-R17E

Company Permit Issued to: Gasco Production CompanyDate Original Permit Issued: 7/26/2007

The undersigned as owner with legal rights to drill on the property as permittedabove, hereby verifies that the information as submitted in the previouslyapproved application to drill, remains valid and does not require revision.

Following is a checklist of some items related to the application, which should beverified.

If located on private land, has the ownership changed, if so, has the surfaceagreement been updated? YesONom

Have any wells been drilled in the vicinity of the proposed well which would affectthe spacing or siting requirements for this location? YesO Nom

Has there been any unit or other agreements put in place that could affect thepermitting or operation of this proposed well? YesO NoO

Have there been any changes to the access route including ownership, or right-of-way, which could affect the proposed location? YesO No IZI

Has the approved source of water for drilling changed? YesO Nol21

Have there been any physical changes to the surface location or access routewhich will require a change in plans from what was discussed at the onsiteevaluation? YesONolZI

Is ding still in place hich covers this proposed welI7?YeslZINoO

Signature Date

Title: Engineering Technician

Representing: Gasco Production Company RECEIVEDJUL25 2008

DIV.0FOIL,GAS&

O STATE OF UTAH FORM 9OEPARTMENT OF NATURALRESOURCE

DIVISIONOF OIL, GAS AND MINI 5. LEASE DESIGNATIONAND SERIAL NUMBER:' ' UTU-75672

6. IFlNDIAN, ALLOTTEE OR TRIBE NAME:SUNDRY NOTICES AND REPORTS ON WELLS NA

7. UNIT or CA AGREEMENT NAME:Do not use this form for proposals to drill new wells, significantly deepen existingwelfsbelow cunent bottom-hole depth, reenter plugged wells, or to NAdrill horizontal laterals. Use APPLICATION FOR PERMIT TO DRILLform for such proposals.

1. TYPE OF WELLOIL WELL GAS WELL O OTHER

8 ELLNAMEdanaeN Bd

ral 12-5-11-172. NAME OF OPERATOR: 9. API NUMBER'

Gasco Production Company 43013337293. ADDRESS OF OPERATOR: PHONE NUMBER: 10. FIELD AND POOL, OR WILDCAT:

8 Invemess Dr E, Ste 100 an Englewood STATE ÛO 2,80112 (303) 483-0044 Wildcat4. LOCATION OF WELL

FOOTAGES AT SURFACE: 460' FWL & 1876' FNL COUNTY: ÛUCheSne

QTRIOTR, SECTION, TOWNSHIP, RANGE, MERIDIAN: SWNW 5 kl S 17E STATE:UTAH

u. CHECK APPROPRIATE BOXES TO INDICATENATURE OF NOTICE, REPORT, OR OTHER DATATYPE OF SUBMISSION TYPE OF ACTION

O ACIDIZE O DEEPEN O REPERFORATE CURRENT FORMATIONNOTICE OF INTENT

(Submit in Dupilcate) ALTER CASING FRACTURE TREAT O SIDETRACK TO REPAIR WELL

Approximate date work will start: CASING REPAIR NEW CONSTRUCTION TEMPORARILYABANDON

O CHANGE TO PREVIOUS PLANS OPERATOR CHANGE TUBING REPAIR

O CHANGE TUBING PLUG ANDABANDON VENT OR FLARE

O SUBSEQUENT REPORT CHANGE WELL NAME PLUG BACK WATER DISPOSAL(Submit Original Form Only)

O CHANGE WELL STATUS O PRODUCTION (STARTIRESUME) WATER SHUT-OFFDate of work completion:

O COMMINGLEPRODUCING FORMATIONS RECLAMATIONOF WELL SITE OTHER: Extend PermitCONVERT WELLTYPE RECOMPLETE - DIFFERENT FORMATION

12. DESCRIBE PROPOSED OR COMPLETED OPERATIONS. Clearly show all pertinent details including dates, depths, volumes, etc.

Gasco Production Company would like to request a one year extension on this APD from thedate it is due to expire(7/31/2009)

Approvedby theUtahDivisionof

Oil,Gas and Mining

De • Û -L\-DCOPYSENTTOOPERATOR '

Date:

Initials:

NAME(PLEASE PRIN ) OSS a TITLE Pf0duction Clerk

SIGNATURE DATE 7/17/2009

(This space for Stat only)

RECEiVEDJUL2O2009

(5/2000) (See instructions on Reverse

O STATE OF UTAH FORM 9OEPARTMENT OF NATURALRESOURCE

DIVISIONOF OIL, GAS AND MINI 5. LEASE DESIGNATIONAND SERIAL NUMBER:' ' UTU-75672

6. IFlNDIAN, ALLOTTEE OR TRIBE NAME:SUNDRY NOTICES AND REPORTS ON WELLS NA

7. UNIT or CA AGREEMENT NAME:Do not use this form for proposals to drill new wells, significantly deepen existingwelfsbelow cunent bottom-hole depth, reenter plugged wells, or to NAdrill horizontal laterals. Use APPLICATION FOR PERMIT TO DRILLform for such proposals.

1. TYPE OF WELLOIL WELL GAS WELL O OTHER

8 ELLNAMEdanaeN Bd

ral 12-5-11-172. NAME OF OPERATOR: 9. API NUMBER'

Gasco Production Company 43013337293. ADDRESS OF OPERATOR: PHONE NUMBER: 10. FIELD AND POOL, OR WILDCAT:

8 Invemess Dr E, Ste 100 an Englewood STATE ÛO 2,80112 (303) 483-0044 Wildcat4. LOCATION OF WELL

FOOTAGES AT SURFACE: 460' FWL & 1876' FNL COUNTY: ÛUCheSne

QTRIOTR, SECTION, TOWNSHIP, RANGE, MERIDIAN: SWNW 5 kl S 17E STATE:UTAH

u. CHECK APPROPRIATE BOXES TO INDICATENATURE OF NOTICE, REPORT, OR OTHER DATATYPE OF SUBMISSION TYPE OF ACTION

O ACIDIZE O DEEPEN O REPERFORATE CURRENT FORMATIONNOTICE OF INTENT

(Submit in Dupilcate) ALTER CASING FRACTURE TREAT O SIDETRACK TO REPAIR WELL

Approximate date work will start: CASING REPAIR NEW CONSTRUCTION TEMPORARILYABANDON

O CHANGE TO PREVIOUS PLANS OPERATOR CHANGE TUBING REPAIR

O CHANGE TUBING PLUG ANDABANDON VENT OR FLARE

O SUBSEQUENT REPORT CHANGE WELL NAME PLUG BACK WATER DISPOSAL(Submit Original Form Only)

O CHANGE WELL STATUS O PRODUCTION (STARTIRESUME) WATER SHUT-OFFDate of work completion:

O COMMINGLEPRODUCING FORMATIONS RECLAMATIONOF WELL SITE OTHER: Extend PermitCONVERT WELLTYPE RECOMPLETE - DIFFERENT FORMATION


Gasco Production Company would like to request a one year extension on this APD from thedate it is due to expire(7/31/2009)

Approvedby theUtahDivisionof

Oil,Gas and Mining

De • Û -L\-DCOPYSENTTOOPERATOR '

Date:

Initials:

NAME(PLEASE PRIN ) OSS a TITLE Pf0duction Clerk

SIGNATURE DATE 7/17/2009

(This space for Stat only)

RECEiVEDJUL2O2009

(5/2000) (See instructions on Reverse


Validation(this form should accompanythe Sundry Notice requesting permit extension)

API: šõiäišižWell Name: WHMn Ridge Fed 12-5-11-17

Location: 46tr FWL & 1876' FNL SWNWof Sec.WT118-RI7E

Company Permit issued to: GascoProductionCompanyDate Original Permit Issued: 7/26r2007

The undersigned as owner with legal rights to drillon the property as permittedabove, hereby verifies that the information as submitted in the previouslyapproved applicationto drill, remains valid and does not require revision.

Following is a checklist of some items related to the application,which should beverified.

If located on private land, has the ownership changed, if so, has the surfaceagreement been updated? Yes O NoO

Have any wells been drilled in the vicinityof the proposed well which would affectthe spacing or siting requirements for thislocation7 YesO Nom

Has there been any unit or other agreements put in place thatcould affect thepermitting or operation of this proposed well? YesO NoO

Have there been any changes to the access route including ownership, or right-of-way, which could affect the proposed location? YesO No O

Has the approved source of water for drillingchanged? YesO NoO

Have there been any physical changes to the surface location or access routewhich willrequire a change in plans from what was discussed at the onsiteevaluation? YesO NoO

Is bonding still in place, which covers thisproposed well? YesŒNoO

Sig7/17/2009

Title: Production Clerk

Representing: Gasco Production CompanyRECSVEDJUL2O2009

DBLOF01, GAS


Validation(this form should accompanythe Sundry Notice requesting permit extension)

API: šõiäišižWell Name: WHMn Ridge Fed 12-5-11-17

Location: 46tr FWL & 1876' FNL SWNWof Sec.WT118-RI7E

Company Permit issued to: GascoProductionCompanyDate Original Permit Issued: 7/26r2007

The undersigned as owner with legal rights to drillon the property as permittedabove, hereby verifies that the information as submitted in the previouslyapproved applicationto drill, remains valid and does not require revision.

Following is a checklist of some items related to the application,which should beverified.

If located on private land, has the ownership changed, if so, has the surfaceagreement been updated? Yes O NoO

Have any wells been drilled in the vicinityof the proposed well which would affectthe spacing or siting requirements for thislocation7 YesO Nom

Has there been any unit or other agreements put in place thatcould affect thepermitting or operation of this proposed well? YesO NoO

Have there been any changes to the access route including ownership, or right-of-way, which could affect the proposed location? YesO No O

Has the approved source of water for drillingchanged? YesO NoO

Have there been any physical changes to the surface location or access routewhich willrequire a change in plans from what was discussed at the onsiteevaluation? YesO NoO

Is bonding still in place, which covers thisproposed well? YesŒNoO

Sig7/17/2009

Title: Production Clerk

Representing: Gasco Production CompanyRECSVEDJUL2O2009

DBLOF01, GAS

API Well No: 43013337290000

STATE OF UTAHDEPARTMENT OF NATURAL RESOURCES

DIVISION OF OIL, GAS, AND MINING

FORM 9

5.LEASE DESIGNATION AND SERIAL NUMBER: UTU-75672

SUNDRY NOTICES AND REPORTS ON WELLSDo not use this form for proposals to drill new wells, significantly deepen existing wells below currentbottom-hole depth, reenter plugged wells, or to drill horizontal laterals. Use APPLICATION FOR PERMIT TODRILL form for such proposals.

6. IF INDIAN, ALLOTTEE OR TRIBE NAME:

7.UNIT or CA AGREEMENT NAME: WILKIN RIDGE DEEP

1. TYPE OF WELL Gas Well

8. WELL NAME and NUMBER: WILKIN RIDGE FED 12-5-11-17

2. NAME OF OPERATOR: GASCO PRODUCTION COMPANY

9. API NUMBER: 43013337290000

3. ADDRESS OF OPERATOR: 8 Inverness Dr. East, Suite 100 , Englewood, CO, 80112

9. FIELD and POOL or WILDCAT: WILDCAT

4. LOCATION OF WELL FOOTAGES AT SURFACE: 1876 FNL 0460 FWL QTR/QTR, SECTION, TOWNSHIP, RANGE, MERIDIAN: Qtr/Qtr: SWNW Section: 05 Township: 11.0S Range: 17.0E Meridian: S

COUNTY: DUCHESNE

STATE: UTAH

11.

CHECK APPROPRIATE BOXES TO INDICATE NATURE OF NOTICE, REPORT, OR OTHER DATA

TYPE OF SUBMISSION TYPE OF ACTION

NOTICE OF INTENTApproximate date work will start:

6/12/2011

SUBSEQUENT REPORTDate of Work Completion:

SPUD REPORTDate of Spud:

DRILLING REPORTReport Date:

ACIDIZE ALTER CASING CASING REPAIR

CHANGE TO PREVIOUS PLANS CHANGE TUBING CHANGE WELL NAME

CHANGE WELL STATUS COMMINGLE PRODUCING FORMATIONS CONVERT WELL TYPE

DEEPEN FRACTURE TREAT NEW CONSTRUCTION

OPERATOR CHANGE PLUG AND ABANDON PLUG BACK

PRODUCTION START OR RESUME RECLAMATION OF WELL SITE RECOMPLETE DIFFERENT FORMATION

REPERFORATE CURRENT FORMATION SIDETRACK TO REPAIR WELL TEMPORARY ABANDON

TUBING REPAIR VENT OR FLARE WATER DISPOSAL

WATER SHUTOFF SI TA STATUS EXTENSION APD EXTENSION

WILDCAT WELL DETERMINATION OTHER OTHER:


NAME (PLEASE PRINT) Roger Knight

TITLE EHS Supervisor

SIGNATURE N/A

DATE 7/19/2010

PHONE NUMBER:303 483-0044 Ext

PHONE NUMBER303 996-1803

July 22, 2010

iPI Well No: 43013337290000

FORM 9


DIVISION OF OIL, GAS, AND MINING EAS7E56D7ESIGNATION AND SERIAL NUMBER:

SUNDRY NOTICES AND REPORTS ON WELLS 6. IF INDIAN, ALLOTTEE OR TRIBE NAME:

Do not use this form for proposals to drill new wells, significantly deepen existing wells below currentbottom-hole depth, reenter plugged wells, or to drill horizontal laterals. Use APPLICATION FOR PERMIT TO 7.UNIT or CA AGREEMENT NAME:

DRILL form for such proposals. WILKIN RIDGE DEEP

1. TYPE OF WELL 8. WELL NAME and NUMBER:Gas Well WILKIN RIDGE FED 12-5-11-17

2. NAME OF OPERATOR: 9. API NUMBER:GASCO PRODUCTION COMPANY 43013337290000

3. ADDRESS OF OPERATOR: PHONE NUMBER: 9. FIELD and POOL or WILDCAT:8 Inverness Dr. East, Suite 100 , Englewood, CO, 80112 303 483-0044 Ext WILDCAT

4. LOCATION OF WELL COUNTY:FOOTAGES AT SURFACE: DUCHESNE

1876 FNL 0460 FWLQTR/QTR, SECTION, TOWNSHIP, RANGE, MERIDIAN: STATE:

Qtr/Qtr: SWNW Section: 05 Township: 11.05 Range: 17.0E Meridian: S UTAH

11.CHECK APPROPRIATE BOXES TO INDICATE NATURE OF NOTICE, REPORT, OR OTHER DATA



/ NOTICE OF INTENTApproximate date work will start: CHANGE TO PREVIOUS PLANS CHANGE TUBING CHANGE WELL NAME

6/12/2011CHANGE WELL STATUS COMMINGLE PRODUCING FORMATIONS CONVERT WELL TYPE

SUBSEQUENT REPORT DEEPEN FRACTURE TREAT NEW CONSTRUCTIONDate of Work Completion:



SPUD REPORTDate of Spud: REPERFORATE CURRENT FORMATION SIDETRACK TO REPAIR WELL TEMPORARY ABANDON


DRILLING REPORT WATER SHUTOFF SI TA STATUS EXTENSION APD EXTENSIONReport Date:


12. DESCRIBE PROPOSED OR CC MPLETED OPERATIONS. Clearly show all pertinent details including dates, depths, volumes, etc.


Oil, Gas and Mining

Date 010

NAME (PLEASE PRINT) PHONE NUMBER TITLERoger Knight 303 996-1803 EHS Supervisor

SIGNATURE DATEN/A

iPI Well No: 43013337290000

FORM 9


DIVISION OF OIL, GAS, AND MINING EAS7E56D7ESIGNATION AND SERIAL NUMBER:






















12. DESCRIBE PROPOSED OR CC MPLETED OPERATIONS. Clearly show all pertinent details including dates, depths, volumes, etc.


Oil, Gas and Mining

Date 010


SIGNATURE DATEN/A

The Utah Division of Oil, Gas, and Mining

- State of Utah- Department of Natural Resources

Electronic Permitting System - Sundry Notices

Request for Permit Extension Validation Well Number 43013337290000

API: 43013337290000Well Name: WILKIN RIDGE FED 12-5-11-17

Location: 1876 FNL 0460 FWL QTR SWNW SEC 05 TWNP 110S RNG 170E MER SCompany Permit Issued to: GASCO PRODUCTION COMPANY

Date Original Permit Issued: 7/26/2007

The undersigned as owner with legal rights to drill on the property as permitted above, hereby verifies thatthe information as submitted in the previously approved application to drill, remains valid and does notrequire revision. Following is a checklist of some items related to the application, which should be verified.

If located on private land, has the ownership changed, if so, has the surface agreement beenupdated? Yes No

Have any wells been drilled in the vicinity of the proposed well which would affect the spacing orsiting requirements for this location? Yes No

Has there been any unit or other agreements put in place that could affect the permitting or operationof this proposed well? Yes No

Have there been any changes to the access route including ownership, or rightof- way, which couldaffect the proposed location? Yes No

Has the approved source of water for drilling changed? Yes No

Have there been any physical changes to the surface location or access route which will require achange in plans from what was discussed at the onsite evaluation? Yes No

Is bonding still in place, which covers this proposed well? Yes No

Signature: Roger Knight Date: 7/19/2010

Title: EHS Supervisor Representing: GASCO PRODUCTION COMPANY

July 19, 2010July 19, 2010

July 22, 2010

UTAH

DNR The Utah Division of Oil, Gas, and Mining'

- State of Utah- Department of Natural ResourcesElectronic Permitting System - Sundry Notices

OTI BAS Br MlNTNG






•If located on private_land, has the ownership changed, if so, has the surface agreement beenupdated? I___|I Yes I_Ð_I No

• Have any wells been drilled in the vicinity of the_proposed well which would affect the spacing orsiting requirements for this location? I:___) Yes _®_) No

• Has there been any unit or other agreements put in place that could affect the permitting or operationof this proposed well? I i Yes i i No

• Have there been any changes to the access route including ownership, or rightof- way, which couldaffect the proposed location? I___) Yes I _I No

• Has the approved source of water for drilling changed? I __I Yes i i No

• Have there been any physical changes to the surface location or access route which will require achange in plans from what was discussed at the onsite evaluation? I___I Yes I®I No

Approved by the•Is bonding still in place, which covers this proposed well? I§|I Yes i i No Utah Division of

Oil, Gas and MiningSignature: Roger Knight Date: 7/19/2010

Title: EHS Supervisor Representing: GASCO PRODUCTION COMPANY Date: July 22, 2010

By:

RECEIVED July 19,

UTAH



Electronic Permitting System - Sundry NoticesOTI BAS Br MlNTNG






•If located on private_land, has the ownership changed, if so, has the surface agreement beenupdated? I___|I Yes I_Ð_I No

• Have any wells been drilled in the vicinity of the_proposed well which would affect the spacing orsiting requirements for this location? I:___) Yes _®_) No

• Has there been any unit or other agreements put in place that could affect the permitting or operationof this proposed well? I i Yes i i No

• Have there been any changes to the access route including ownership, or rightof- way, which couldaffect the proposed location? I___) Yes I _I No

• Has the approved source of water for drilling changed? I __I Yes i i No

• Have there been any physical changes to the surface location or access route which will require achange in plans from what was discussed at the onsite evaluation? I___I Yes I®I No

Approved by the•Is bonding still in place, which covers this proposed well? I§|I Yes i i No Utah Division of

Oil, Gas and MiningSignature: Roger Knight Date: 7/19/2010

Title: EHS Supervisor Representing: GASCO PRODUCTION COMPANY Date: July 22, 2010

By:

RECEIVED July 19,



FORM 9


SUNDRY NOTICES AND REPORTS ON WELLSDo not use this form for proposals to drill new wells, significantly deepen existing wells below currentbottom-hole depth, reenter plugged wells, or to drill horizontal laterals. Use APPLICATION FOR PERMIT TODRILL form for such proposals.






9. API NUMBER: 43013337290000

3. ADDRESS OF OPERATOR: PHONE NUMBER: 8 Inverness Dr. East, Suite 100 , Englewood, CO, 80112 303 483-0044 Ext



COUNTY: DUCHESNE

STATE: UTAH

11.




7/26/2012















NAME (PLEASE PRINT) PHONE NUMBER Roger Knight 303 996-1803


SIGNATURE N/A

DATE 7/26/2011

08/01/2011

Jul. 26, 2011

Sundry Number: 17003 API Well Number: 43013337290000

FORM 9STATE OF UTAH

DEPARTMENT OF NATURAL RESOURCESDIVISION OF OIL, GAS, AND MINING gyEAS7E56D7E25IGNATION AND SERIAL NUMBER:






3. ADDRESS OF OPERATOR: PHONE NUMBER: 9. FIELD and POOL or WILDCAT:8 Inverness Dr. East, Suite 100 , Englewood, CO, 80112 303 483-0044 E×t WILDCAT

4.LOCATIONOFVVELL COUNTY:FOOTAGES AT SURFACE: DUCHESNE















12. DESCRIBE PROPOSED OR C( MPLETED OPERATIONS. Clearly show all pertinent details including dates, depths, volumes, etc.


Oil, Gas and Mining

Date: 08/01/2011

By:


SIGNATURE DATEN/A

FORM 9STATE OF UTAH

DEPARTMENT OF NATURAL RESOURCESDIVISION OF OIL, GAS, AND MINING gyEAS7E56D7E25IGNATION AND SERIAL NUMBER:






3. ADDRESS OF OPERATOR: PHONE NUMBER: 9. FIELD and POOL or WILDCAT:8 Inverness Dr. East, Suite 100 , Englewood, CO, 80112 303 483-0044 E×t WILDCAT

4.LOCATIONOFVVELL COUNTY:FOOTAGES AT SURFACE: DUCHESNE















12. DESCRIBE PROPOSED OR C( MPLETED OPERATIONS. Clearly show all pertinent details including dates, depths, volumes, etc.


Oil, Gas and Mining

Date: 08/01/2011

By:


SIGNATURE DATEN/A









If located on private land, has the ownership changed, if so, has the surface agreement beenupdated? Yes No

Have any wells been drilled in the vicinity of the proposed well which would affect the spacing orsiting requirements for this location? Yes No

Has there been any unit or other agreements put in place that could affect the permitting or operationof this proposed well? Yes No

Have there been any changes to the access route including ownership, or rightof- way, which couldaffect the proposed location? Yes No


Have there been any physical changes to the surface location or access route which will require achange in plans from what was discussed at the onsite evaluation? Yes No


Signature: Roger Knight Date: 7/26/2011


Jul. 26, 2011


UTAH

DNR The Utah Division of Oil, Gas, and Mining- State of Utah- Department of Natural ResourcesElectronic Permitting System - Sundry Notices

TI, BAS Pr N1NTMG






•If located on private_land, has the ownership changed, if so, has the surface agreement beenupdated? O Yes No

• Have any wells been drilled in the vicinity of the roposed well which would affect the spacing orsiting requirements for this location? O Yes No

• Has there been any unit or other agreements put in place that could affect the permitting or operationof this proposed well? O Yes @ No

• Have there been any changes to the access route including ownership, or rightof- way, which couldaffect the proposed location? O Yes @ No

• Has the approved source of water for drilling changed? O Yes @ No

• Have there been any physical changes to the surface location or access route which will require achange in plans from what was discussed at the onsite evaluation? O Yes @ No

• Is bonding still in place, which covers this proposed well? @ Yes O No

Signature: Roger Knight Date: 7/26/2011Title: EHS Supervisor Representing: GASCO PRODUCTION

UTAH

DNR The Utah Division of Oil, Gas, and Mining- State of Utah- Department of Natural Resources

Electronic Permitting System - Sundry NoticesTI, BAS Pr N1NTMG






•If located on private_land, has the ownership changed, if so, has the surface agreement beenupdated? O Yes No

• Have any wells been drilled in the vicinity of the roposed well which would affect the spacing orsiting requirements for this location? O Yes No

• Has there been any unit or other agreements put in place that could affect the permitting or operationof this proposed well? O Yes @ No

• Have there been any changes to the access route including ownership, or rightof- way, which couldaffect the proposed location? O Yes @ No

• Has the approved source of water for drilling changed? O Yes @ No

• Have there been any physical changes to the surface location or access route which will require achange in plans from what was discussed at the onsite evaluation? O Yes @ No

• Is bonding still in place, which covers this proposed well? @ Yes O No

Signature: Roger Knight Date: 7/26/2011Title: EHS Supervisor Representing: GASCO PRODUCTION

RECEIVED: Jul. 26, 2012



FORM 9


SUNDRY NOTICES AND REPORTS ON WELLS

Do not use this form for proposals to drill new wells, significantly deepen existing wells belowcurrent bottom-hole depth, reenter plugged wells, or to drill horizontal laterals. Use APPLICATIONFOR PERMIT TO DRILL form for such proposals.





2. NAME OF OPERATOR:

9. API NUMBER: 43013337290000

3. ADDRESS OF OPERATOR: PHONE NUMBER: , , , Ext



COUNTY: DUCHESNE

STATE: UTAH

11.




7 /26 /2013

















SIGNATURE N/A

DATE 7 /26 /2012

July 30, 2012

Sundry Number: 28116 API Well Number: 43013337290000Sundry Number: 28116 API Well Number: 43013337290000

FORM 9STATE OF UTAH

DEPARTMENTOF NATURALRESOURCES5.LEASE DESIGNATION AND SERIAL NUMBER:DIVISION OF OIL, GAS, AND MINING UTU-75672


Do not use this form for proposals to drill new wells, significantly deepen existing wells belowcurrent bottom-hole depth, reenter plugged wells, or to drill horizontal laterals. Use APPLICATION 7.UNITor CA AGREEMENT NAME:

FOR PERMIT TO DRILL form for such proposals. WILKINRIDGE DEEP


2. NAME OF OPERATOR: 9. API NUMBER:4301 3337290000

3. ADDRESS OF OPERATOR: PHONE NUMBER: 9. FIELD and POOL or WILDCAT:Ext WILDCAT


1876 FNL 0460 FWLQTRIQTR, SECTION, TOWNSHIP, RANGE, MERIDIAN: STATE:

QtrlQtr: SWNW Section: 05 Township: 11.0S Range: 17.0E Meridian: S UTAH

CHECK APPROPRIATE BOXES TO INDICATENATURE OF NOTICE, REPORT, OR OTHER DATA


ACI DIZE ALTER CASING CASING REPAIRNOTICE OF INTENT

Approximate date work will start: CHANGE TO PREVIOUS PLANS CHANGE TUBING CHANGE WELL NAME


SUBSEQUENTREPORT DEEPEN FRACTURETREAT NEWCONSTRUCTIONDate of Work Completion:


PRODUCTION START OR RESUME RECLAMATION OF WELL SITE RECOMPLETE DIFFERENT FORMATIONSPUD REPORT

Date of Spud: REPERFORATE CURRENT FORMATION SIDETRACK TO REPAIR WELL TEMPORARY ABANDON






OFI, Gas and Mining

Date: July 30, 2012

By:


SIGNATURE DATEN/A 7/26/2012

RECEIVED: Jul. 26,


FORM 9STATE OF UTAH




FOR PERMIT TO DRILL form for such proposals. WILKINRIDGE DEEP


2. NAME OF OPERATOR: 9. API NUMBER:4301 3337290000

3. ADDRESS OF OPERATOR: PHONE NUMBER: 9. FIELD and POOL or WILDCAT:Ext WILDCAT


















OFI, Gas and Mining

Date: July 30, 2012

By:



RECEIVED: Jul. 26,








Date Original Permit Issued: 7 /26 /2007

The undersigned as owner with legal rights to drill on the property as permitted above, hereby verifies that theinformation as submitted in the previously approved application to drill, remains valid and does not require revision.Following is a checklist of some items related to the application, which should be verified.

If located on private land, has the ownership changed, if so, has the surface agreement been updated? Yes No

Have any wells been drilled in the vicinity of the proposed well which would affect the spacing or sitingrequirements for this location? Yes No

Has there been any unit or other agreements put in place that could affect the permitting or operation of thisproposed well? Yes No

Have there been any changes to the access route including ownership, or rightof- way, which could affect theproposed location? Yes No


Have there been any physical changes to the surface location or access route which will require a change inplans from what was discussed at the onsite evaluation? Yes No


Signature: Roger Knight Date: 7 /26 /2012



UTAH



OTI. EMI Pr N1NTrie






* If located on private land, has the ownership changed, if so, has the surface agreement been updated? OYes No

• Have any wells been drilled in the vicinity of the proposed well which would affect the spacing or sitingrequirements for this location? O Yes No

• Has there been any unit or other agreements put in place that could affect the permitting or operation of thisproposed well? (_) Yes No

• Have there been any changes to the access route including ownership, or rightof- way, which could affect theproposed location? O Yes i No

· Has the approved source of water for drilling changed? O Yes No

• Have there been any physical changes to the surface location or access route which will require a change inplans from what was discussed at the onsite evaluation? Yes No

' Is bonding still in place, which covers this proposed well? Yes No

Signature: Roger Knight Date: 7/26/2012Title: EHS Supervisor Representing: GASCO PRODUCTION COMPANY

RECEIVED: Jul. 26,


UTAH



Electronic Permitting System - Sundry NoticesOTI. EMI Pr N1NTrie














RECEIVED: Jul. 26,

«¾,°"4 United States Department of the Interior 6-BUREAU OF LAND MANAGEMENT

Utah State Office*ses 25? 440 West 200 South, Suite 500

Salt Lake City, UT 84101 - 1http://www.blm.gov/ut/st/en.html go

IN REPLY REFER TO: FEBC5 2013 '

3180 (UTU81153X)UT-922000

Ms. Frankie L. MartinezGasco Energy, Inc.7979 East Tufts Avenue, Suite 1150Denver, Colorado 80237

Re: Automatic ContractionWilkin Ridge (Deep) UnitUintah and Duchesne Counties, Utah

Dear Ms. Martinez:

Your letter of January 24, 20 13, describesthe landsautomatically eliminated effective September 17,2012, from the Wilkin Ridge (Deep) Unit Area, Uintah and Duchesne Counties, Utah, pursuant toSection 2(e) of the unit agreement and requests our concurrence. The lands you have describedcontain 44,447.23 acres, more or less, and constitute all legal subdivisions, no parts of which areincluded in the Wilkin Ridge (Deep) ParticipatingAreas "A" and " B". As a result of the automaticcontraction, the unit is reduced to 480.00 acres.

The following Federal Leases are entirely eliminated from the unit area:

UTU56947 UTU75084 UTU77063 UTU88144UTU68387 UTU75085 UTU78214 UTU88204UTU68620* UTU75086 UTU78215UTU74400 UTU75087 UTU78216UTU74401 UTU75088 UTU80950UTU74402 UTU75235 UTU81003*UTU74403 UTU75236 UTU81706*UTU74407 UTU75514 UTU82704UTU74408 UTU75515 UTU82705UTU74836 UTU75672 UTU84262 Tract No. 43 UNLEASED*

UTU74968 UTU76031 UTU84263UTU74971 UTU76032 UTU84264UTU75079 UTU76256 UTU84265UTU75080 UTU76258 UTU88068UTU75081 UTU76716 UTU88069UTU75082 UTU76717 UTU88072

*Indicates non-committed

«¾,°"4 United States Department of the Interior 6-BUREAU OF LAND MANAGEMENT

Utah State Office*ses 25? 440 West 200 South, Suite 500

Salt Lake City, UT 84101 - 1http://www.blm.gov/ut/st/en.html go

IN REPLY REFER TO: FEBC5 2013 '

3180 (UTU81153X)UT-922000

Ms. Frankie L. MartinezGasco Energy, Inc.7979 East Tufts Avenue, Suite 1150Denver, Colorado 80237

Re: Automatic ContractionWilkin Ridge (Deep) UnitUintah and Duchesne Counties, Utah

Dear Ms. Martinez:

Your letter of January 24, 20 13, describesthe landsautomatically eliminated effective September 17,2012, from the Wilkin Ridge (Deep) Unit Area, Uintah and Duchesne Counties, Utah, pursuant toSection 2(e) of the unit agreement and requests our concurrence. The lands you have describedcontain 44,447.23 acres, more or less, and constitute all legal subdivisions, no parts of which areincluded in the Wilkin Ridge (Deep) ParticipatingAreas "A" and " B". As a result of the automaticcontraction, the unit is reduced to 480.00 acres.

The following Federal Leases are entirely eliminated from the unit area:

UTU56947 UTU75084 UTU77063 UTU88144UTU68387 UTU75085 UTU78214 UTU88204UTU68620* UTU75086 UTU78215UTU74400 UTU75087 UTU78216UTU74401 UTU75088 UTU80950UTU74402 UTU75235 UTU81003*UTU74403 UTU75236 UTU81706*UTU74407 UTU75514 UTU82704UTU74408 UTU75515 UTU82705UTU74836 UTU75672 UTU84262 Tract No. 43 UNLEASED*

UTU74968 UTU76031 UTU84263UTU74971 UTU76032 UTU84264UTU75079 UTU76256 UTU84265UTU75080 UTU76258 UTU88068UTU75081 UTU76716 UTU88069UTU75082 UTU76717 UTU88072

*Indicates non-committed

The following Federal Leases are partially eliminated from the unit area:

UTU65632 UTU75083

You have complied with the requirements of Section 2(e), provided you promptly notify allinterested parties. If you have any questions, please contact Judy Nordstrom at (801) 539-4108.

Sincerely,

Roger L. BankertChief, Branch of Minerals

Enclosure

cc: UDOGMSITLAONRR w/Exhibit "B" (Attn: Nancy McCarthy)(UTG01) BLM FOM - Vernal

The following Federal Leases are partially eliminated from the unit area:

UTU65632 UTU75083

You have complied with the requirements of Section 2(e), provided you promptly notify allinterested parties. If you have any questions, please contact Judy Nordstrom at (801) 539-4108.

Sincerely,

Roger L. BankertChief, Branch of Minerals

Enclosure

cc: UDOGMSITLAONRR w/Exhibit "B" (Attn: Nancy McCarthy)(UTG01) BLM FOM - Vernal

United States Department of the InteriorBUREAU OF LAND MANAGEMENT

Green River DistrictVernal Field Office170 South 500 EastVernal, UT 84078

http://www.blm.gov/ut/st/en/fo/vernal.html

April 1, 2013

IN REPLY REFER TO:3160 (UTGO11)

Roger KnightGasco Energy Inc.7979 Tufts Ave., Suite 1150Denver, CO 80237

43 Of3> 33'1ZSRe: Request to Return APD

Well No. Wilkin Ridge Federal 12-5-11-17SWNW, Sec. 5, T11S, R17EDuchesne County, UtahLease No. UTU-75672

Dear Roger:

The Application for Permit to Drill (APD) for the above referenced well received in this office onMarch 22, 2007, is being returned unapproved per your request to this office in an emailmessage to Natural Resource Specialist William T. Civish Jr. received on February 19, 2013. Ifyou intend to drillat this location at a future date, a new APD must be submitted.

Ifyou have any questions regarding APD processing, please contact Robin R. Hansen at (435)781-3428.

Sincerely,

Is/ Jerry Kenczka

Jerry KenczkaAssistant Field ManagerLands & Resource Minerals

Enclosures

cc: UDOGMRECE1VED

bcc: Well FileMAYO12013

United States Department of the InteriorBUREAU OF LAND MANAGEMENT

Green River DistrictVernal Field Office170 South 500 EastVernal, UT 84078

http://www.blm.gov/ut/st/en/fo/vernal.html

April 1, 2013

IN REPLY REFER TO:3160 (UTGO11)

Roger KnightGasco Energy Inc.7979 Tufts Ave., Suite 1150Denver, CO 80237

43 Of3> 33'1ZSRe: Request to Return APD

Well No. Wilkin Ridge Federal 12-5-11-17SWNW, Sec. 5, T11S, R17EDuchesne County, UtahLease No. UTU-75672

Dear Roger:

The Application for Permit to Drill (APD) for the above referenced well received in this office onMarch 22, 2007, is being returned unapproved per your request to this office in an emailmessage to Natural Resource Specialist William T. Civish Jr. received on February 19, 2013. Ifyou intend to drillat this location at a future date, a new APD must be submitted.

Ifyou have any questions regarding APD processing, please contact Robin R. Hansen at (435)781-3428.

Sincerely,

Is/ Jerry Kenczka

Jerry KenczkaAssistant Field ManagerLands & Resource Minerals

Enclosures

cc: UDOGMRECE1VED

bcc: Well FileMAYO12013




FORM 9


SUNDRY NOTICES AND REPORTS ON WELLS

Do not use this form for proposals to drill new wells, significantly deepen existing wells belowcurrent bottom-hole depth, reenter plugged wells, or to drill horizontal laterals. Use APPLICATIONFOR PERMIT TO DRILL form for such proposals.


7.UNIT or CA AGREEMENT NAME:




9. API NUMBER: 43013337290000

3. ADDRESS OF OPERATOR: PHONE NUMBER: 8 Inverness Dr. East, Suite 100 , Englewood, CO, 80112 303 996-1805 Ext



COUNTY: DUCHESNE

STATE: UTAH

11.




7 /26 /2014

















SIGNATURE N/A

DATE 7 /22 /2013

July 29, 2013


FORM 9STATE OF UTAH




FOR PERMIT TO DRILL form for such proposals.





















OFI, Gas and Mining

Date: July 29, 2013

By:



RECEIVED: Jul. 22,


FORM 9STATE OF UTAH




FOR PERMIT TO DRILL form for such proposals.





















OFI, Gas and Mining

Date: July 29, 2013

By:



RECEIVED: Jul. 22,








Date Original Permit Issued: 7 /26 /2007


If located on private land, has the ownership changed, if so, has the surface agreement been updated? Yes No

Have any wells been drilled in the vicinity of the proposed well which would affect the spacing or sitingrequirements for this location? Yes No

Has there been any unit or other agreements put in place that could affect the permitting or operation of thisproposed well? Yes No

Have there been any changes to the access route including ownership, or rightof- way, which could affect theproposed location? Yes No


Have there been any physical changes to the surface location or access route which will require a change inplans from what was discussed at the onsite evaluation? Yes No


Signature: Roger Knight Date: 7 /22 /2013



UTAH



OTI. EMI Pr N1NTrie














RECEIVED: Jul. 22,


UTAH



Electronic Permitting System - Sundry NoticesOTI. EMI Pr N1NTrie














RECEIVED: Jul. 22,

State'r Utah • DEPARTMENT OF NATURAL RESOURCES

MICHAEL R. STYLER

GARY R. HERBERT Governor

Executive Director

Division of Oil, Gas and Mining JOHNR.BAZA

December 11,2014 SPENCER J. COX

Lieutenant Govel1lOr Division Director

Gasco Production Company 8 Inverness Dr. East, Suite 100 Englewood, CO 80112

., 4?~ ~() \~ ?-> 12.(1 ~,'i)ll !?1V) ¥-K\tj.e, F e-l:~ 1 '2..- S - i !- II

tS q"S \lE

Re: APDs Rescinded for Gasco Production Company, Uintah and Duchesne County


Enclosed find the list of APDs that is being rescinded. No drilling activity at these locations has been reported to the division. Therefore, approval to drill these wells is hereby rescinded.

A new APD must be filed with this office for approval prior to the commencement of any future work on the subject location.

If any previously unreported operations have been performed on this well location, it is imperative that you notify the Division immediately.

Sincerely,

~(;\ • t<..-vL~L Itt ((/V\-'

J~ason Environmental Scientist

cc: Well File Bureau of Land Management, Vernal

1594 West North Temple, Suite 1210, PO Box 145801, Salt Lake City, UT 84114-5801 telephone (801) 538-5340. facsimile (801) 359-3940. TTY (801) 538-7458. www.ogm.utah.gov

OILr GAS & MINING

State f UtahDEPARTMENT OF NATURAL RESOURCES

MICHAEL R. STYLERGARY R. HERBERT Executive Director

December 11, 2014Governor Division of Oil, Gas and MiningSPENCER J. COX JOHN R. BAZA

Lieutenant Govemor Division Director

Gasco Production Company8 Inverness Dr. East, Suite 100Englewood, CO 80112

Re: APDs Rescinded for Gasco Production Company,Uintah and Duchesne County


Enclosed find the list of APDs that is being rescinded. No drilling activityat these locations has been reported to the division. Therefore, approval to drillthese wells is hereby rescinded.

A new APD must be filed with this office for approval prior to thecommencement of any future work on the subject location.

If any previously unreported operations have been performed on this welllocation, it is imperative that you notify the Division immediately.

Sincerely,

MasonEnvironmental Scientist

cc: Well FileBureau of Land Management, Vernal

UTAH

DNR1594 West North Temple, Suite 1210, PO Box 145801, Salt Lake City, UT 84114-5801telephone (801) 538-5340 •facsimile (801) 359-3940 • TTY (801) 538-7458 • wwwogm.utah.gov

OIL, GAS &

• 43-047-38579 Uteland Fed 31-10-10-18 43-047-38634 Uteland Fed 34-12-10-18 43-013-33729 Wilkin Ridge Fed 12-5-11-17 43-047-39459 Sheep Wash Fed 43-33-9-18

• g O

43-047-38579 Uteland Fed 31-10-10-1843-047-38634 Uteland Fed 34-12-10-1843-013-33729 Wilkin Ridge Fed 12-5-11-1743-047-39459 Sheep Wash Fed

GASCO - UtahGASCO Energy September 1, 2006 Bureau of Land Management Vernal Field Office 170 S. 500...

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