The oil rig count in the US increased by 4 this week, according to the latest data released by oilfield services company Baker Hughes on Friday.
The number of oil rigs, an indicator of short-term production in the country, rose by 4 to 429 for the week ending May 29.
The number of US oil rigs decreased by 22 compared to one year ago.
The price of international benchmark Brent crude futures stood at $91.12 per barrel at Friday's close, while American benchmark West Texas Intermediate (WTI) was at $87.36 a barrel.
By Humeyra Ayaz
Anadolu Agency
energy@aa.com.tr