Energy stocks rallied in unison Thursday to pace the S&P 500's sector gainers, with crude oil futures surging as U.S. Secretary of State Mike Pompeo said Iran was to blame for a number of recent incidents, including the attacks Thursday on two oil tankers in the Middle East. The SPDR Energy Select Sector ETF /zigman2/quotes/206420077/composite XLE +0.07% rallied 1.3% in afternoon trade, with all 29 equity components gaining ground. Among the more-active components, shares of Halliburton Co. /zigman2/quotes/210488727/composite HAL +1.15% hiked up 2.8%, Marathon Oil Corp. /zigman2/quotes/205031829/composite MRO -0.60% gained 1.8%, Schlumberger NV /zigman2/quotes/201012972/composite SLB -0.19% rose 3.7%, Exxon Mobil Corp. /zigman2/quotes/204455864/composite XOM -0.13% tacked on 0.8% and Kinder Morgan Inc. /zigman2/quotes/208455654/composite KMI +0.25% advanced 0.8%. Meanwhile, crude oil futures surged 2.8%, after settling Wednesday at a 5-month low. The energy ETF has lost 6.9% year to date, while the S&P 500 /zigman2/quotes/210599714/realtime SPX +0.28% tacked on 2.8%.