Drilling activity in Indiana during 1963 was 24.1 percent less than in 1962. The amount of oil produced in 1963, about 12,200,000 bbls., was virtually the same as the previous year. Successes numbered 59 during the year, 16.1 percent of the total exploratory holes drilled, with discovery of 10 new fields, 26 new pools, and 23 pool extensions. The search for stratigraphic entrapments in southwestern Indiana accounted for most of the drilling effort; greater than usual attention was given to deeper possibilities in Mississippian rocks.

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