The Brookhaven oil field, located in Lincoln County, Mississippi, was discovered in 1943. A period of inactivity followed, due to poor results of the discovery well. In 1945 the second producer was completed which led to the development of the field. The Brookhaven structure is anticlinal and is probably due to deep-seated salt movement. The structure is crossed by three normal faults which

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form a central graben area. Production is obtained at an average depth of 10,135 to 10,545 feet from the Tuscaloosa formation of Upper Cretaceous age. Accumulation is controlled by structure and the lenticularity of the producing sands. The faulting present does not affect the accumulation.

After the slow start the field was developed rapidly due to early expiration of the leases. It was noted during the early production history that the reservoir pressures were declining rapidly. This led to a study of the reservoir conditions that resulted in a voluntary unitization agreement among the various operators and royalty owners for a pressure maintenance program to prolong the life of the field and to increase the ultimate recovery.

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