Chris H. Reed Petroleum Geologist Tyler, Tex. Clarksville field was discovered in December 1985 by a well targeting a deeper Paleozoic horizon. Since production began in 1986, this field has produced more than 1 million bbl of oil with the appearance of a considerably longer and more lucrative life. The producing horizon is a Jurassic age lithic conglomerate sitting unconformably on the Paleozoic and Triassic structural front of the buried Ouachita range. Facies correlation out of the basin indicates this unit to be Louark age. Mapping and compositional analysis indicate the depositional environment of this...

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