| Ultra Petroleum Corp. (Ultra) is an independent oil and gas company engaged in the development, production, operation, exploration and acquisition of oil and natural gas properties. The Company's operations are primarily in the Green River Basin of southwest Wyoming. The Company continually evaluates other opportunities for the acquisition, exploration and development of oil and natural gas properties. As of December 31, 2007, Ultra owns interests in approximately 121,652 gross (62,756 net) acres in Wyoming covering approximately 230 square miles. The Company owns an interest in approximately 676 gross producing wells in this area and is operator of approximately 50% of the 676 gross wells. The Company owns interests in 252,629 gross acres in Pennsylvania. On October 22, 2007, the Company sold Sino-American Energy Corporation (Sino-American), which owned its Bohai Bay assets in China. |
