Energy stocks were leaning lower premarket Tuesday, with The Energy Select Sector SPDR Fund (XLE) down 0.2%.

The United States Oil Fund (USO) was down 2.9% and the United States Natural Gas Fund (UNG) was 2.5% lower.

Front-month US West Texas Intermediate crude oil was 2.5% lower at $75.90 per barrel at the New York Mercantile Exchange. Global benchmark North Sea Brent crude oil lost 1.7% to reach $78.76 per barrel, and natural gas futures were down 3.5% at $3.81 per 1 million British Thermal Units.

Chevron (CVX) has expressed interest in an open exploration block managed by Greece's Hellenic Hydrocarbons and Energy Resources Management Company, multiple news outlets reported, citing the country's energy ministry. Chevron shares were 0.3% lower pre-bell.