South Texas drilling declined 9% in 1960 from the 1959 level. No new major fields are apparent at the current stage of development. Although exploratory drilling increased 2%, the success ratio was 1.1% under that of 1959. Development drilling was down 8.8%. The 60 gas discoveries were slightly more than twice the 28 oil discoveries in 1960; the ratio in the past 3 years has been closer to 1:1. Oil production decreased by 5% while gas production was up 7%. Wildcatting along the deep Edwards and deep Wilcox trends continues to increase. Geophysical activity dropped sharply, about 30% below 1959’s total.

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