Clinton gas field has developed into one of the most significant stratigraphic discoveries in Oklahoma. This field is important not only for the magnitude of its hydrocarbon reserves, but also for the model it provides for finding similar fields.

The Clinton field is part of the Clinton-Geary trend, which is productive from upper Red Fork sandstones of Desmoinesian age. This trend is a 65-mi long, 0.5-2-mi wide incised fluvial channel that runs through Blaine, Caddo, Canadian, and Custer Counties. The Geary field at the northeastern end of the channel was discovered and subsequently developed in the 1970s. In 1979, the Clinton field was discovered, and since that time no less than 50 productive wells have been drilled. Development of the field is still continuing at a rapid pace.

The Clinton-Geary channel developed on a pre-Pink limestone erosional surface and eroded a 200-ft deep valley, which was subsequently filled by stream deposits, predominantly sands, silts, and clays. Sandstones in the channel range from a few feet in thickness to almost 200 ft.

Individual wells in the Clinton field have had flow rates exceeding 10 MMCFGD, with calculated open flow in excess of 40 MMCFGD. Estimated reserves are 30-40 bcf of gas and 0.6-0.8 million bbl of oil for the best wells in the field. Ultimate recoveries for the field are estimated to be 0.75 tcf of gas and 15 million bbl of oil.

The Clinton field is the most prolific Red Fork gas field in Oklahoma. A thorough understanding of its depositional history may help us discover similar significant fields.

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