During 1963, 87 exploratory wells were drilled in Utah and only one, a Silurian dry hole, in Nevada. Total exploratory footage in Utah was 465,538 feet. Eight oil discoveries and one gas discovery in Utah, and none in Nevada, all were near areas of established production. The geology and producing formations in these areas are described very briefly. The number of development wells drilled in Utah dropped from 157 in 1962 to 121 in 1963. In Nevada, one oil well was added to the Eagle Springs field. Principal trends in exploration are an expected increase in activity in the Kaiparowits region in the southern and southwestern parts of Utah.