Tri-Valley Corporation

Tri-Valley Corporation is listed on AMEX (TIV). Tri-Valley Corporation, a Delaware corporation formed in 1971, is in the business of exploring, acquiring and developing prospective and producing petroleum, industrial minerals and precious metals properties and interests therein. Substantially all of our oil and gas reserves are located in northern California. In 2004, Tri-Valley had three wholly owned subsidiaries: Tri-Valley Oil & Gas Company, Select Resources Corporation Inc., and Tri-Valley Power Corporation. Tri-Valley Oil & Gas Company (TVOG) operates the oil & gas activities.

TRIZEC PROPERTIES INC

TRIZEC PROPERTIES INC is listed on NYSE (TRZ). Trizec Properties, Inc. is one of the largest fully integrated, self-managed, publicly traded real estate investment trusts, or REITs, in the United States. We are engaged in owning and managing office properties in the United States. At December 31, 2004, we had total assets of approximately $4.5 billion and owned interests in and managed 52 U.S. office properties containing approximately 37.3 million square feet, or approximately 33.8 million square feet based on our pro rata economic ownership interest in unconsolidated real estate joint ventures. Our office properties are concentrated in seven core markets in the United States, located in the following major metropolitan areas: Atlanta, Georgia; Chicago, Illinois; Dallas, Texas; Houston, Texas; Los Angeles, California; New York, New York; and Washington, D.C. We were originally incorporated as Trizec (USA) Holdings, Inc. in Delaware on October 25, 1989.

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