Browse the archive · U
Companies starting with U.
57 oil & gas companies — each links to its full acquisition lineage and corporate successor.
- U.S. Energy Corp.
- U.S. Minerals Exploration
- U.S. Oil
- U.S. Smelting Production Co.
- U.S. Steel Corp.
- U.V. Industries
- Uentech International Corp.
- Ultramar Diamond Shamrock Corp.
- Ultramar, Inc.
- UMC Petroleum Corporation
- UMC Petroleum Resources Corporation
- Unetech International Corp.
- Unibar Energy Services Inc.
- Unical
- Unicon Producing Company
- Unified Oil Company
- Unioil
- Uniok Energy Corporation
- Uniol Energy Corporation
- Union Cal Inc.
- Union Light, Heat and Power Inc. (KY)
- Union O & G of Louisiana
- Union of Louisiana
- Union of Texas
- Union of Texas Petroleum
- Union Oil Company
- Union Oil Company of California
- Union Oil Explorations Ltd.
- Union Pacific Resources Company
- Union Pacific Resources Group Inc.
- Union Petroleum of Texas
- Union Producing Company
- Union S & O
- Union Texas International Corp.
- Union Texas Natural Gas Corp.
- Union Texas Petroleum Corp.
- Unit Corporation
- Unita Gas & Oil, Inc.
- United American Life Ins. (O&G) Assets
- United Carbon Company
- United Carbon Producing Co., Inc.
- United Energy Resources, Inc.
- United Gas, Inc.
- United Investors Management Co.
- United Meridian Corp.
- United Petroleum Corporation (Knoxville, TN)
- United Producing Company
- United States Borax & Chemical Corp.
- United States Exploration, Inc.
- United Trans-Western, Inc.
- Universal Consolidated
- Universal Resources Corp.
- UNOCAL Corporation
- USM Oil Company
- Utah International, Inc.
- Utah Oil Company
- Utah Oil Refining Company