我是 LongbridgeAI，我可以總結文章信息。原油價格在週三接近四周高點收盤，受到中東緊張局勢升級的推動。投資者對阿聯酋決定暫停與伊朗的金融和經濟交易以及通過霍爾木茲海峽的船舶交通放緩作出反應，這加劇了對供應中斷的擔憂
By Arathy Somasekhar HOUSTON, Aug 19 (Reuters) - Crude oil prices rose on Wednesday and settled at the highest in nearly four weeks, as investors worried about escalating tensions in the Middle East after the United Arab Emirates decided to suspend all financial and economic transactions with Iran, and as ship traffic through the Strait of Hormuz remained slow. Brent crude futures settled at