OPEC cut production agreement extension, U.S. crude oil inventories will slow down the expected optimism, U.S. crude oil futures for the first time in three weeks to break through $50 a barrel. Thursday (March 30th) May WTI crude oil futures settlement price of $50.35 a barrel, up $0.84, compared with the previous trading day up 1.7%, trading range of $49.27-50.47 in May; Brent crude oil futures settlement price of $52.96 a barrel, up $0.54, compared with the previous trading day up 1%, trading range of $52.03-53.1.