The Elk City field is in T. 10 N., Rs. 20, 21, 22 W., Beckham County, Oklahoma. The history of the geophysical exploration leading to the discovery is presented.

The Shell Oil Company entered the area in 1945 after seismic work had been done by several other companies. A dry hole, the deepest well in Oklahoma at that time, had been drilled on the structure in 1940. The presentation of data includes seismic records, profiles, and maps on two horizons as well as an up-to-date subsurface map.

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