The 1985 level of drilling activity for north Louisiana and east Texas (CSD Districts 9 and 24, respectively) differed only slightly from 1984 levels. Arkansas (CSD District 1), however, had a substantial increase in drilling activity. Both Arkansas and north Louisiana had decreases in exploratory drilling, whereas east Texas had a slight increase in the number of exploratory wells. The exploratory success rate increased in east Texas, remained unchanged in Arkansas, and decreased in north Louisiana. The number of development wells drilled in Arkansas increased sharply, whereas development activity remained unchanged in north Louisiana and decreased in east Texas. Success rates for development drilling increased slightly in north Louisiana, but were virtually unchanged in Arkansas and east Texas.

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First page of Oil and Gas Developments in Arkansas, North Louisiana, and East Texas in 1985<xref ref-type="fn" rid="fn1"><sup>1</sup></xref>
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