The number of rigs exploring for oil and natural gas in the U.S. increased by three this week to 943.
A year ago, just 497 rigs were active.
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Houston oilfield services company Baker Hughes said Friday that 759 rigs sought oil and 183 explored for natural gas this week. One was listed as miscellaneous.
Among major oil- and gas-producing states, New Mexico added three rigs. Alaska gained two and Pennsylvania one.
Texas and Wyoming each lost a rig.
Arkansas, California, Colorado, Louisiana, North Dakota, Ohio, Oklahoma, Utah and West Virginia were all unchanged.
The U.S. rig count peaked at 4,530 in 1981. It bottomed out in May of 2016 at 404.