U.S. oil futures ended Thursday at their highest in about three weeks, finding support from expectations for tighter global supplies in the coming months. The session’s gain contributed a monthly rise of 2.2% for front-month West Texas Intermediate crude, according to Dow Jones Market Data. The October WTI contract
CLV23,
climbed $2, or nearly 2.5%, for the session to settle at $83.63 a barrel on the New York Mercantile Exchange, the highest front-month finish since Aug. 9.