Williams Pipeline Partners L.P. was established by The Williams Companies, Inc. (Williams) to own and operate natural gas transportation and storage assets. The Company owns a 35% interest in Northwest Pipeline GP (Northwest), which owns an approximate 3,900-mile, bi-directional, interstate natural gas pipeline system that extends from the San Juan Basin in New Mexico, through the Rocky Mountains and to the Northwestern United States. Northwest also has working natural gas storage capacity of approximately 12.8 billion cubic feet (Bcf). As of February 2, 2009, Williams indirectly owns an approximate 45.7% interest in the Company and all of its 2% general partner interest.