Tri-Valley Corporation (NYSE Amex:TIV) today announced it will present at the 2011 Global Hunter Securities Conference in San Francisco on Monday, July 18, 2011, at 3:30 p.m. PT, rather than at 2:30 p.m. PT, as previously announced. Tri-Valley’s Chief Financial Officer, John E. Durbin, will review the Company’s business strategy and recent corporate events.

Attendance at this conference is by invitation only. Tri-Valley will offer a live webcast of its presentation which may be accessed at the Investor Relations section of the Company’s website at www.tri-valleycorp.com. An archived replay of the presentation will be available for 90 days, also at www.tri-valleycorp.com.

About Tri-Valley

Tri-Valley Corporation explores for and produces oil and natural gas in California and has two exploration-stage gold properties in Alaska. Tri-Valley is incorporated in Delaware and is publicly traded on the NYSE Amex exchange under the symbol "TIV." The Company website, which includes all SEC filings, is www.tri-valleycorp.com.

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