Reserve Index Now 11.5 Years for TXCO Upon Record Reserve Year

TXCO Resources reported that proved reserves increased sharply through both the Output acquisition and drilling. Net proved reserves at the end of 2007 were a record 91.8 bcfe, up from TXCO's estimated proved reserves of 41.4 bcfe at year-end 2006. Combined with record 2007 oil and gas sales of 7.9 bcfe, gross reserve additions were 58.3 bcfe, including 18.5 bcfe via the drillbit, before acquisitions.

Overall, TXCO had a 731 percent all-source reserve replacement rate. Estimated, pre-tax future net cash flows discounted at 10 percent (PV-10) for proved reserves at year-end 2007 were $373 million, based on adjusted commodity prices of $92.75 per barrel for crude oil and $6.445 per mmBtu for natural gas. TXCO's year-end 2006 PV-10 stood at $92.7 million.

The Company's reserve life index rose to 11.5 years, compared with seven years at year-end 2006. Its reserve mix at year end consisted of 54 percent oil and 46 percent gas, of which approximately 59 percent was proved developed.

All reserve estimates were prepared by the independent engineering firms of DeGolyer and MacNaughton and William M. Cobb & Associates Inc. in accordance with Securities and Exchange Commission and Financial Accounting Standards Board requirements.