ROSETTA RESOURCES INC. is an independent oil and gas company engaged in the acquisition, exploration, development and production of primarily natural gas properties in North America. Our exploration and production activities are concentrated in the Sacramento Basin of California, South Texas, the Gulf of Mexico, and the Rocky Mountains. As of December 31, 2006, our total proved oil and natural gas reserves were approximately 408 Bcfe, including 390 Bcf of natural gas and 2,930 MBbls of oil and condensate. Our proved reserves are approximately 96% natural gas and 64% proved developed with a reserve life index of approximately 12 years. We operate approximately 90% of our proved reserves and maintain a high degree of control over our capital expenditure budget and other operating matters.

Our Company was formed in June 2005. We began operations in July 2005 following our acquisition of substantially all of the domestic oil and gas business of Calpine Corporation. Most of our current management team and certain key employees operated these oil and natural gas assets while employed by Calpine. The funding for the acquisition of these properties was through a 144A private placement, exempt from registration under the Securities Act, where we issued common stock to qualified institutional buyers and non-U.S. persons. We also used borrowings of $325 million under two credit facilities to complete this transaction.


On February 13, 2006, we became a publicly held company listed on the NASDAQ® exchange under the ticker symbol “ROSE”.