Oil prices rose after Yemen’s Iran-aligned Houthi rebels said they had attacked facilities operated by Saudi state oil company Aramco in Riyadh and the Khurais area. The reports increased concern about possible production disruptions in Saudi Arabia, a major Middle East crude exporter. At 10:02 p.m. GMT, Brent crude futures were up 81 cents, or 0.79%, at $103.06 a barrel, while U.S. West Texas Intermediate futures gained 46 cents, or 0.50%, to $91.57. The Houthis identified Khurais, one of Saudi Arabia’s main oil-producing areas, as a target, but it was not immediately clear whether the attacks caused damage or disrupted crude output.