Western Wisconsin Natural Gas/Dairy Basin

Project Developer:Agri-Waste Energy, Inc.

Western Wisconsin Natural Gas/Dairy Basin

- Phase 1: Emerald Dairy

Biogas Refinery and Anaerobic Digester at Emerald Dairy

Methane (biogas) from digester processed into Compressed Natural Gas (CNG)

CNG transported in DOT approved CNG transport trailers

CNG delivered to Northern Natural Gas (NNG) pipeline injection site; CNG from

Emerald Dairy transferred to NNG pipeline for sale to 3M company

Natural Gas Basins in the Northern Natural Gas System

WesternCanadian Basin

Rocky MountainBasins

HugotonBasin

AnadarkoBasin

AnadarkoBasin

Market Area

Field Area

Storage0.8 Bcf/d

Field1.6 Bcf/d

0.5 Bcf/d

2.0 Bcf/d0.4 Bcf/d

GulfCoast

Ventura

Demarc

Carlton

Northern Natural

Receipt PointsStorage LocationsLNG Locations

Texas

Montana

Iowa

Kansas

Wyoming

New Mexico

Illinois

Nebraska

Minnesota

Missouri

South Dakota

Wisconsin

North Dakota

Michigan

Northern Natural Gas accesses supply from the Mid-Continent, Permian, Rocky Mountain, and

Western Canadian basins.

16,600 miles of pipeline

- Phase 2: Baldwin Dairy/ Jon-De Dairy digester(s) / biogas pipeline(s) / Biogas Refining project

Baldwin Dairy

Jon-De Dairy

Pipeline for Methane (biogas) transfer

8 miles of pipeline to be placed in township road right-of-way to move methane (biogas) from Baldwin & Jon-De Dairies to Phase 2 Biogas Refinery

Phase 2 Biogas Refinery to be located adjacent to NNG pipeline

injection point

Phase 2 Biogas Refinery will process “digester-produced methane”

(biogas) from 4000 cows at Baldwin and Jon-De Dairies

Western Wisconsin Natural Gas / Dairy Basin: Natural Gas will be

injected into the NNG pipeline from:

• 4000 cows at Emerald Dairy

• 1300 cows at Baldwin Dairy

• 2700 cows at Jon-De Dairy

Major Natural Gas Pipelines in Wisconsin

Wisconsin has…

• An existing network of major natural gas pipelines

• An expanding “large scale” dairy industry

• The potential for several natural gas/ dairy basins