Oil prices rose on Wednesday amid choppy trading as investors awaited Washington's next steps in the US-Israeli war on Iran. Brent crude futures were up 0.7 percent, or 76 cents, at $104.36 a barrel by 0730 GMT, while U.S. West Texas Intermediate was up 0.7 percent, or 63 cents, at $96.72, reversing earlier losses. The gains followed the Barents settlement at its lowest level in nearly four weeks during the previous session.