Shell is trading 3.34% up at €44.70 as the broader oil-sector rally lifts shares amid Middle East supply concerns and shipping attacks in the Gulf and Strait of Hormuz. - Reuters reports U.S. Gulf production curtailments as Hurricane Isaias approaches. - AFP reports energy majors rallied as Brent surged. - In its October 7 update, Shell forecast a third-quarter refining margin of $42 per barrel, up from $24 in Q2, providing supportive company context.