Overview

We are a growth-oriented Delaware limited partnership formed by El Paso Corporation to own and operate natural gas transportation pipelines, storage and other midstream assets. Our initial assets consist of Wyoming Interstate Company, Ltd., or WIC, a wholly-owned interstate pipeline transportation business primarily located in Wyoming and Colorado and 10% general partner interests in two interstate pipeline transportation businesses: Colorado Interstate Gas Company, or CIG, which is located in the U.S. Rocky Mountains, and Southern Natural Gas Company, or SNG, which is located in the southeastern United States. Combined, these three interstate pipeline businesses consist of approximately 12,300 miles of pipeline and associated storage facilities with aggregate underground working natural gas storage capacity of 89 Bcf. References to “we” and “our” refer to the operations of 100% of WIC, as well as our 10% general partner interests in CIG and SNG. El Paso operates and owns the remaining 90% general partner interests.

We intend to utilize the significant experience of El Paso’s management team to execute our growth strategy, including the construction, development and acquisition of additional energy infrastructure assets. El Paso is the largest operator of interstate natural gas pipelines in North America. As of June 30, 2007, El Paso owned or had interests in approximately 43,000 miles of interstate pipeline and 233 Bcf of working natural gas storage capacity that connect many of the major domestic natural gas producing basins to the major domestic consuming markets.

*Cautionary Statement Regarding Forward-looking Statements