09:24 AM EDT, 04/21/2026 (MT Newswires) -- Energy stocks were edging higher premarket Tuesday, with the State Street Energy Select Sector SPDR ETF (XLE) advancing by 0.2%.

The United States Oil Fund (USO) was up 0.2% and the United States Natural Gas Fund (UNG) was 0.1% lower.

Front-month US West Texas Intermediate crude oil was 0.1% lower at $89.51 per barrel at the New York Mercantile Exchange. Global benchmark North Sea Brent crude oil fell 0.4% to $95.07 per barrel, and natural gas futures were down 0.2% at $2.69 per 1 million British Thermal Units.

Shell (SHEL) faces a fresh lawsuit by a Dutch climate activist organization demanding it immediately end its investments in new oil and gas projects, Reuters reported, citing court documents. Shares of Shell were 0.7% higher pre-bell.

Spain's National Markets and Competition Commission, or CNMC, has shelved its investigation into BP (BP), Repsol, and Cepsa's alleged collusive practices and abuse of their dominant market position, according to a translation of a statement from the regulator. BP stock was up 0.6% premarket.

Halliburton (HAL) stock was up more than 1% after the company reported lower Q1 adjusted net income and revenue that still topped analysts'expectations.