** Shares of U.S. airlines down in premarket trading as oil prices surge more than 16%

** The war has driven up fuel costs, with oil jumping 20% in early Monday trading to its highest since July 2022 on fears of tighter supply and prolonged shipment disruptions

** Shares of United Airlines UAL.O down 3.5%, Delta Air Lines DAL.N down 3.9% and American Airlines AAL.O down 3.8%

** Southwest Airlines LUV.N drops 2.5%

** Airline shares were down globally, with carriers across Australia, Asia and Europe sliding

** Dow Jones U.S. airlines sub-index .DJUSAR down 15.3%, YTD

(Reporting by Rashika Singh in Bengaluru)