The oil driller Baker Hughes reported on Friday that the number of active U.S. rigs declined by 20 rigs to 516 this week. It was the lowest level since April, 2010.
The gas rig count decreased by 14 to 148.
Combined oil and gas rigs declined by 34 to 664.
According to Baker Hughes, the total rig count has fallen by 1,086 in 2015, while the oil rig count is down by 905.