Rosetta Resources Inc. together with its subsidiaries (Rosetta) is an independent oil and gas company engaged in the acquisition, exploration, development and production of oil and gas properties in North America. The Company’s operations are concentrated in the areas of the Sacramento Basin of California, the Rockies, and South Texas. In addition, Rosetta has non-core positions in the State Waters of Texas and the Gulf of Mexico. During the year ended December 31, 2008, the Company drilled 184 gross and 152 net wells, with a success rate of 89%. In 2008, the Company had 398.2 billion of cubic feet equivalents (Bcfe) of proved oil and natural gas reserves, including 376.5 billion cubic feet (Bcf) of natural gas and 3,603 million barrels (MBbls) of oil and condensate.