Oil prices surged by almost 1% on Wednesday, trading near their highest since April, as crude and fuel products inventory data showing robust demand from the world’s biggest fuel consumer, the U.S., offset demand concerns elsewhere.

Brent crude futures for October rose 76 cents, or 0.90%, to $85.67 a barrel at 0407 GMT. Likewise, U.S. West Texas Intermediate crude for September climbed 76 cents, or 0.93%, to $82.13 a barrel.

U.S. oil inventories fell by 15.4 million barrels in the week ended July 28, according to market sources citing American Petroleum Institute figures, compared with analysts’ estimates for a drop of 1.37 million barrels.