Oil prices rose sharply as weekend strikes hit Saudi Arabia and a vessel in the Strait of Hormuz, adding to supply concerns after the shutdown of Saudi Arabia's East-West pipeline. Brent crude gained 3.46% to $108.23 a barrel and U.S. West Texas Intermediate climbed 3.15% to $103.20, while a separate market snapshot showed Brent at $107.84 and U.S. crude at $102.85. Brent has traded above $100 and near $110 as markets assess risks to energy infrastructure and major shipping routes including the Strait of Hormuz and Bab el-Mandeb. Oman postponed planned Gulf-Iran discussions, while Houthi advances in Yemen added to regional risks. Standard Chartered warned that geopolitical instability could produce sharper and more frequent price swings, with traders also watching OPEC, the IEA, possible production changes and sanctions.