La Fleur C. Browne

Williams Pipeline Partners LP owns and operates natural gas transportation & storage assets. It owns a 35% interest in Northwest Pipeline GP, which owns and operates a natural gas pipeline system that extends from the San Juan Basin in northwestern New Mexico & southwestern Colorado through Colorado, Utah, Wyoming, Idaho, Oregon, and Washington. The frim operates through its subsidaries Williams Pipeline GP LLC and Williams Partners L.P. The company is headquartered in Tulsa, OK.

Apco Oil & Gas International, Inc. operates as an international oil and gas exploration and production company. The company was founded on April 6, 1979 and is headquartered in Tulsa, OK.

Williams Partners LP owns, operates and acquires a diversified portfolio of complementary energy assets. It is engaged in the business of gathering, transporting and processing natural gas and fractionating and storing natural gas liquids. The company operates its business through the following segments: Gas Pipeline and Midstream Gas and Liquids. The Gas Pipeline segment includes interstate natural gas pipelines and pipeline joint venture investments. The Midstream Gas and Liquids segment includes natural gas gathering, treating and processing business and is comprised of several wholly owned and partially owned subsidiaries. Williams Partners was founded in February 2005 and is headquartered in Tulsa, OK.

Transcontinental Gas Pipe Line Co. LLC is an interstate natural gas transmission company, which owns a natural gas pipeline system extending from Texas, Louisiana, Mississippi and the Gulf of Mexico through Alabama, Georgia, South Carolina, North Carolina, Virginia, Maryland, Delaware, Pennsylvania and New Jersey to the New York City metropolitan area. Its customers include public utilities and municipalities that provide service to residential, commercial, industrial and electric generation end users. The company was founded on October 5, 1948 and is headquartered in Houston, TX.