Piceance Basin Expansion Project

In response to increasing natural gas production in the Piceance Basin, Wyoming Interstate Company, Ltd. (WIC) is constructing the Piceance Basin Expansion Project. The project consists of approximately 142 miles of 24-inch diameter natural gas pipeline; approximately 1,650 horsepower of compression at the Greasewood Hub located in Rio Blanco County, Colorado (a convergence point for various interstate pipelines and numerous pipeline gathering systems located in the Piceance Basin area); and metering facilities at both the Greasewood Hub and the Wamsutter Compressor Station in Sweetwater County, Wyoming. The project was designed to receive and transport up to 350,000 dekatherms per day of natural gas from the Greasewood Hub to interconnections with WIC and Colorado Interstate Gas Company (CIG) at the Wamsutter Compressor Station.

WIC conducted an open season during June 2004 seeking interest in transportation capacity for the project. As a result of that open season, WIC executed an agreement with Williams Power Company, Inc., for transportation on the project facilities.

WIC filed an application with the Federal Energy Regulatory Commission (FERC) in early 2005 asking FERC to authorize construction of the project facilities. Construction begin in November of 2005 with an expected in-service date of March 2006.

With an estimated resource base of 5 to 10 trillion cubic feet of proved and potential natural gas reserves, the Piceance Basin in the northwestern part of Colorado has been one of the most underdeveloped production reserve areas in the Rocky Mountain area. WIC believes that the Piceance Basin Expansion Project will help meet natural gas producers' demand to transport their gas to western and mid-continent markets.

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El Paso Corporation provides natural gas and related energy products in a safe, efficient, and dependable manner. The company owns North America's largest gas pipeline system and one of North America 's largest independent natural gas producers. For more information, visit www.elpaso.com or call our toll free number 1-866-683-5587.

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