Oil falls after US inventory build feeds oversupply fears

Oil prices fell on Wednesday after a surprise climb in U.S. crude stockpiles added to concerns about a global supply glut as a spike in global COVID-19 cases fuels demand fears and production returns in Libya.

Brent crude futures for December delivery were at $42.94 a barrel, down 22 cents, or 0.5%, as of 0035 GMT, while December U.S. West Texas Intermediate (WTI) crude futures slipped 23 cents, or 0.7%, to $41.47 a barrel.

Both benchmarks gained the previous session.