Tri-Valley Corporation (TVC) is crude oil and gas exploitation, development and production company engaged in locating and developing hydrocarbon resources in California. The Company is also engaged in early-stage exploration of precious minerals in Alaska. As of December 31, 2011, the Company conducts its operations through two wholly-owned subsidiaries, Tri-Valley Oil & Gas Co. (TVOG) and Select Resources Corporation, Inc. (Select).The Company�s business is divided into two segments: oil and gas operations and minerals. TVOG operates its oil and natural gas business segment and is involved in exploring for and producing oil and natural gas in California. Select operates its minerals segment and holds and maintains two mineral assets in the State of Alaska. Its oil and natural gas properties are located in California, primarily at Pleasant Valley near Oxnard, California, and at the Claflin property located within the Edison Field near Bakersfield, California.