According to weekly data released by oilfield services company Baker Hughes, the number of oil drilling rigs in the country decreased by 7 to 499 in the week of April 27-May 3 compared to the previous week.
The number of oil drilling rigs in the US has decreased by 89 in the last year.
The barrel price of Brent oil, which closed Thursday at 83.67 dollars, completed Friday at 83.67 dollars.
The barrel price of West Texas (WTI) type crude oil closed Friday at 77.98 dollars. The barrel of WTI crude oil had completed Thursday at 78.95 dollars.
