Superior Oil Company
Superior Oil Company (1921–1984) was an independent American oil company that is now part of ExxonMobil. Superior Oil was founded in 1921 in Coalinga, California by William Myron Keck, also founder of the W. M. Keck Foundation.
Superior Oil began as a drilling contracting firm and grew into other oil services including exploration and production of oil and natural gas. In 1938, the company constructed the first offshore oil platform off the Gulf Coast of Louisiana in cooperation with Pure Oil, another independent producer.
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In 1937 and 1938, Pure Oil and Superior Oil together built a large wooden platform about a mile offshore in approximately 14 feet of water. This Creole field became the first producing property in the Gulf.
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Finally, in March 1984, Mobil acquired Superior Oil for $5.7 billion in an intra-FRS company transaction.
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In time, Superior became the largest independent oil producing company in North America.