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The Mount Poso Oil Field is a large oil and gas field in the lower foothills of the Sierra Nevada in Kern County, California, United States. Discovered in 1926, and relatively close to exhaustion with less than three percent of its original oil remaining, it is the 21st largest field in California by total ultimate oil recovery, having a cumulative production of close to .〔(California Department of Conservation, Oil and Gas Statistics, Annual Report, December 31, 2006 ), p. 67〕 The current principal operator of the field is Plains Exploration & Production; 652 wells remained active at the end of 2006, while production had dwindled to during that year, from a peak of over 9 million in 1981.〔DOGGR, p. 294〕 ==Setting== The oil field is in the lower Sierra Foothills, north and northeast of the city of Bakersfield, and directly north of the giant Kern River Oil Field. To the west is the large agricultural region of the San Joaquin Valley. Vegetation on the hills around the oil field is mostly grassland. The field is about long and across, although some of the productive areas are widely separated, and even within the four named areas the pools are often discontiguous. Elevations on the field range from around at the southern boundary along Poso Creek to over in the northeastern portion; the central area of operations, around Halfway House, is approximately above sea level. Access to the field is by several roads. Famoso Woody Road enters the field from the west, from its junction with California State Route 65 in the San Joaquin Valley bottom, and Granite Road crosses the field from south to north, also passing through the Kern Front field. Other oil fields nearby, in addition the Kern River field, are the Poso Creek Oil Field to the southwest, adjacent to the San Joaquin Valley bottomland, and the Kern Front Oil Field, which is between the Poso Creek field and the Kern River field; all three of these nearby fields are in the lowest portion of the foothills as they begin to rise from the valley floor. To the southeast of Mount Poso is the Round Mountain Oil Field. The climate is semi-arid, with long, hot summers and cool winters. Most precipitation falls in the winter, in the form of rain, with the amount increasing with elevation. Summertime temperatures regularly exceed . 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Mount Poso Oil Field」の詳細全文を読む スポンサード リンク
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