(Bloomberg) -- This year’s much-anticipated rebound in air travel is sputtering, with profound implications for the global oil market.Most Read from BloombergTucker Carlson's Fox Defense Crumbled When He Took MillionsXi Tells Blinken ‘Very Good’ That Progress Made on US-China TiesGlobal Stocks Slip on Worry Rally Looks Exhausted: Markets WrapMass Immigration Experiment Gives Canada an Edge in Global Race for LaborIndiGo Makes Record 500-Plane Order With Airbus, Betting Big on Travel BoomIn Asia,