Belridge Oil
The South Belridge Oil Field is a large oil field in northwestern Kern County, San Joaquin Valley, California, about forty miles west of Bakersfield. Discovered in 1911, and having a cumulative production of over 1,500 million barrels (240,000,000 m3) of oil at the end of 2008, it is the fourth-largest oil field in California, after the Midway-Sunset Oil Field, Kern River Oil Field, and Wilmington Oil Field, and is the sixth-most productive field in the United States. Its estimated remaining reserves, as of the end of 2008, were around 494 million barrels (78,500,000 m3), the second-largest in the state, and it had 6,253 active wells. The principal operator on the field was Aera Energy LLC, a joint venture between Royal Dutch Shell and ExxonMobil. Additionally, the field included the only onshore wells in California owned and operated by ExxonMobil.
The oil field is located along State Route 33, between the junctions with State Route 58 on the south and State Route 46 on the north. The field is in an area of gentle slope to the southwest, just above the San Joaquin Valley which is adjacent on the east; the crest of the Temblor Range, the nearest part of the California Coast Ranges, parallels the oil field about ten miles to the southwest. The field is about 10 miles (16 km) long by 2 miles (3.2 km) wide, and encompasses a productive area of 9,420 acres (3,810 ha). Elevations on the oil field range from approximately 450 to 700 feet (140 to 210 m); the elevation of the floor of the San Joaquin Valley to the east is around 250 feet (76 m).
The South Belridge Oil Field is part of the larger Belridge Producing Complex of Aera Energy LLC, which includes also the smaller, but still substantial oil fields of North Belridge, Lost Hills, and Cymric, all in northwestern Kern County.
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