1 Casper Cheyenne Questar Wamsutter Pipeline Project Description Montana North Dakota South Dakota Nebraska Colorado Utah Wyoming Phase1 245 mile pipeline extending from Wamsutter, Wyoming to the South Terminus of the proposed Bison Pipeline project. Capacity: approximately 500,000 Dth/day. Bison Pipeline will connect to Northern Border Pipeline for delivery to Midwest pipelines and markets such as: NNG, NGPL, ANR, Midwestern, Guardian, Alliance, Vector, Midwest LDC’s etc. Receipts from the Wamsutter area including, gas plants such as Echo Springs, gathering lines, WIC, CIG, Entrega, Southern Star, Lost Creek lateral etc. Competitively priced to the Chicago and Midwest markets. Avoids congested routes and interconnects for delivery to the Mid-continent. Phase 2 80 mile Wamsutter to Questar Pipeline’s Kanda Hub with ties to Questar Pipeline and Overthrust Pipeline for deliveries of Powder River, Wind River and Wamsutter gas to the West including, Kern River Pipeline, Questar Gas, Clay Basin Gas Storage, Northwest Pipeline etc.

2 Casper Cheyenne Questar Wamsutter Pipeline Project Phase 1 Salt Lake City Cheynne Bismarck Montana North Dakota South Dakota Nebraska Colorado Utah Wyoming Gillette Wamsutter Wind River Basin Powder River Basin Bison Pipeline Wamsutter Pipeline Northern Border Pipeline Rock Springs Questar System Kern River To Midwest Markets NNG, NGPL, Chicago ANR, Vector, Midwestern, Guardian, etc.

3 Casper Cheyenne Questar Wamsutter Pipeline Project Phase 2 Salt Lake City Cheynne Bismarck Montana North Dakota South Dakota Nebraska Colorado Utah Wyoming Gillette Wamsutter Wind River Basin Powder River Basin Bison Pipeline Wamsutter Pipeline Northern Border Pipeline Rock Springs Questar System Kern River To Midwest Markets NNG, NGPL, Chicago ANR, Vector, Midwestern, Guardian, etc.