The Alferitz anticline area is located in northwestern Kern County (T. 25 S., R. 18 E., M.D.B. &

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M.) 25 miles south of the town of Avenal and lies between the Pyramid Hills and Devil's Den oil fields.

Approximately 13,000 feet of sediments, ranging in age from Pliocene to Eocene have been deposited in the area since Cretaceous time. These beds thin from east to west due to both erosion and to several important unconformities. Commercial accumulations of oil have been found in eight different zones within these beds--due both to folding and faulting.

This area, referred to by Ralph D. Reed as, "a complex group of low hills," presents a very complicated structural picture. Although the surface axis of the Alferitz anticline trends N. 25° W., the axis in the lower beds has nearly an east-west trend.

Oil is produced from both the Alferitz Anticline field and from the smaller "Hillview" area in the north part of the area. Total production is approximately 500 barrels a day and varies from 15° in the Escudo sand to 34° in the lowermost productive interval in the Point of Rocks sand. Eight productive zones have been found as follows: five zones within the Point of Rocks sand, the Tumey shale, the Agua sand, and the Escudo sand.

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