Carrizo Oil & Gas Brings Two Barnett Shale Wells Onstream

Carrizo says that two additional South East Tarrant County, Texas Barnett Shale wells began flowing to sales on August 26, 2007. The Schroeder No. 1H and No. 2H, in which Carrizo has a 100 percent working interest in both wells, are producing at a combined rate of 8.3 MMcfe/d gross (6.5 MMcfe/d net) as of Friday, August 31, 2007.

Carrizo Oil & Gas, Inc., is a Houston-based energy company actively engaged in the exploration, development, exploitation and production of oil and natural gas primarily in proven onshore trends along the Texas and Louisiana Gulf Coast regions and the Barnett Shale area in North Texas. Carrizo controls significant prospective acreage blocks and utilizes advanced 3-D seismic techniques to identify potential oil and gas reserves and drilling opportunities.