Carl-Martin Nagel Joins Tri-Valley Executive Advisory Council.

BAKERSFIELD, Calif. -- German businessman Carl-Martin Nagel, shareholder and chief executive officer of C.M. Nagel GmbH, Frankfurt am Main, Germany, a private holding company with various investments mainly in the oil sector, has joined the Executive Advisory Council of Tri-Valley Corporation.

A Business economics graduate of J.W. Goethe University, Frankfurt/Main, Mr. Nagel became executive director and then chief executive officer of Carl Nagel KG, an international iron and non ferrous scrap business, in Frankfurt/Main. He merged his company with Water Trapp GmbH & Co. KG of Frankfurt/Main where he continued as shareholder and vice president for years before becoming shareholder and CEO of Metallhandels Gesellschaft Offenbach/Main GmbH. During that time he served as chairman of Rohstoff-Verband Hessen, the secondary raw material dealers association of the Federal State of Hessen and additionally chairman of Bundesverband Der Deutschen Rohstoffwirstchaft e. V Koln, the Federal association of Secondary Raw Material Dealers of the Republic of Germany.

Mr. Nagel, significantly, has served as board member and large shareholder of five Canadian oil and gas companies, Pan Continental Oil Ltd, Inverness Petroleum Ltd, Newport Petroleum Corporation Ltd, Sentra Resources Corporation and Blue Mountain Energy Ltd. He was a member of the Executive Advisory Board of Nassauische Sparkasse, a national Bank owned by public communities and continues to serve since 1983 as a member of the jury for commercial court in Frankfurt/Main, Germany.

"Mr. Nagel has visited the oil projects of Tri-Valley and attended our recent shareholder meeting as well as sending some of his technical representatives for additional due diligence. He is experienced in oil and gas investing in North America and other countries of the world and we welcome his insights of our own considerable energy opportunities and his support in rapidly accelerating our growth. We look forward to our first meeting of the Tri-Valley Corporation Executive Advisory Council shortly to discuss several opportunities to continue to build share value," said F. Lynn Blystone, Chairman, president and chief executive officer of Tri-Valley Corporation.

The company has been in business as a successful operating company since 1963, and has been a full reporting 12 (g) publicly traded Delaware Corporation since 1972. Tri-Valley Corporation stock is publicly traded on the American Stock Exchange under the symbol "TIV." Our company website, which includes all SEC filings, is www.tri-valleycorp.com.

This press release contains forward-looking statements that involve risks and uncertainties. Actual results, events and performance could vary materially from those contemplated by these forward-looking statements which includes such words and phrases as exploratory, wildcat, prospect, speculates, unproved, prospective, very large, expect, potential, etc. Among the factors that could cause actual results, events and performance to differ materially are risks and uncertainties discussed in the company's quarterly report on Form 10-Q for the quarter ended September 30, 2007, and the annual report on Form 10-K for the year ended December 31, 2006.