Show Thaw Slows Oil Drilling Mud resulting from a spring thaw slowed oil and gas drilling operations in the Rocky Moun tamn tain and high Plains areas dur ing the past week BUT THE industry tion Petroleum Information reported that the number of act act- active ive rotaries increased despite the thaw in Wyoming Colorado and North Dakota There were declines in Montana Nebraska and Utah Utah activities included Shamrock Oil and Gas has completed 9 Castle Peak Unit SE SE in Duchesne County pumping barrels of gravity oil with three bar bar- barrels of water per day Nearest production In Monument Butte field is two miles to the south south- southwest west Equity Oil has completed 11 Ashley Valley NW NW 2355 in Uintah County flowing four barrels of oil with bar of water per day lion tion Is from Entrada sandstone 2028 to 2035 feet |