Oil Companies

BIG LAKE OIL COMPANY	COASTAL CORPORATION
DIAMOND SHAMROCK	ENSERCH CORPORATION
EXXON COMPANY, U.S.A.	GENERAL AMERICAN OIL COMPANY
GULF OIL CORPORATION	MAGNOLIA PETROLEUM COMPANY
MESA PETROLEUM CORPORATION	MITCHELL ENERGY AND DEVELOPMENT CORPORATION
PENNZOIL	PLYMOUTH OIL COMPANY
TEXACO	TRANSCONTINENTAL OIL COMPANY

Riding Line - Texas State Historical Association

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