Oil headed for the biggest weekly loss since May as a dispute between Saudi Arabia and the United Arab Emirates clouded the outlook for supply just as the spread of the delta virus variant sapped risk appetite. West Texas Intermediate, which swung around $73 a barrel, has sunk 2.6% this week, snapping a run of six consecutive weekly gains that had lifted prices to the highest level since 2014. A stronger dollar and investors backtracking on reflation bets have also weighed on the outlook for crude. The drop for WTI over the week came despite official data on Thursday that showed another fall in U.S. crude stockpiles, as well as record fuel demand. Nationwide oil holdings have shrunk to the lowest since February 2020 as activity picks up with the rollout of vaccines to combat the pandemic. After an 11% gain last month, July has been more challenging for […]