West Texas Intermediate crude is poised to extend its slump below $90 as consumption slows and supplies climb from the U.S. and Libya, according to the most accurate forecaster of prices of the grade in the second quarter. Crude is under pressure because of signs of easing demand in , said Jason Kenney, an equity analyst at Banco Santander SA. Prices are also falling because of “comfortable supply” as U.S. shale oil production booms and Libyan crude output rebounds, he said. WTI fell below $90 a barrel today for the first time in 17 months, extending this year’s decline to 9.9 percent. from shale deposits has turned the U.S. into the world’s largest producer of liquid petroleum, cutting its need for imports just as the pace of global demand is slowing. U.S. crude output rose to the most since 1986 last month, while OPEC pumped at the highest level […]