Oil and gas stocks rose Tuesday after U.S. Central Command said American forces began striking Islamic Revolutionary Guard Corps (IRGC) targets in Iran at noon Eastern time on Sept. 1, 2026. The action followed overnight attacks on two oil tankers—one Saudi and one South Korean—by unknown projectiles in the Strait of Hormuz, according to UK Maritime Trade Operations; no casualties or environmental damage were reported. West Texas Intermediate crude, tracked by the United States Oil Fund (NYSE:USO), jumped 4.7% to $90.46 a barrel, while Brent gained 4.6% to $95.05. The Energy Select Sector SPDR Fund (NYSE:XLE) rose 1.1%, while the S&P 500 fell 0.7%. Among energy companies with market capitalizations above $10 billion, Petróleo Brasileiro S.A. — Petrobras, Ecopetrol, Canadian Natural Resources, BP, Antero Resources, Venture Global and Equinor posted gains ranging from 3.18% to 4.96%, based on Benzinga Pro data at approximately 3:10 p.m. ET. The SPDR S&P Oil & Gas Exploration & Production ETF (NYSE:XOP) climbed 1.8% to a 52-week high of $192.39, while the VanEck Oil Services ETF (NYSE:OIH) was flat as SLB fell 3.7%. Exxon Mobil and Chevron gained 2.3% and 2.1%, respectively. Higher crude prices lifted inflation and interest-rate concerns: the 10-year Treasury yield rose to 4.80%, its highest level since January 2025, while the two-year yield reached 4.40%, also matching January 2025 levels. Crude was up 57% from its Dec. 31 close of $57.42, and energy had gained 44.8% for the year versus roughly 12% for the S&P 500.