Energy stocks were falling pre-bell Friday, with the State Street Energy Select Sector SPDR ETF (XLE) declining by 0.8%.
The United States Oil Fund (USO) was down 1.6% and the United States Natural Gas Fund (UNG) was 1.4% higher.
Front-month US West Texas Intermediate crude oil was 1% lower at $90.41 per barrel at the New York Mercantile Exchange. Global benchmark North Sea Brent crude oil lost 0.8% to $94.76 per barrel, and natural gas futures were up 1.6% at $2.96 per 1 million British Thermal Units.
Baker Hughes (BKR) said it won a contract from BP (BP) to provide offshore stimulation services across BP's UK North Sea operations. Baker Hughes shares were 0.3% higher and BP stock was up 0.2% premarket.