Anew oily play is popping up in southern Arkansas and northern .. Louisiana. Actually, it's an application of new-era, unconventional technology to a decades-old play, the Upper Jurassic Smackover. While the Smackover occurs across a broad region, interest is particularly high these days in Lafayette, Columbia and Union counties, Arkansas, and Bossier, Webster and Claiborne parishes, Louisiana. This area falls in one of the interior Gulf Coast sedimentary basins, referred to as the North Louisiana Salt Basin or the Ark-La Basin. Its package of prospective sediments lies wedged between the Sabine and Monroe uplifts.
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