Oil prices on Friday remained around April lows as slowing economic growth threatened to worsen ongoing oversupply of crude and refined products.

International Brent crude oil futures (LCOc1) were trading at $42.78 at 0127 GMT (09:27 p.m. EDT), up 8 cents from their previous close. U.S. West Texas Intermediate (WTI) crude (CLc1) was at $41.16, up 2 cents.

Brent hit its lowest since April in the previous session, at $42.56, while WTI hit a fresh low of $40.95 per barrel early on Friday, and both crude benchmarks are now down around 20 percent since their last peak in June.

Because of ongoing oversupply, U.S. bank Goldman Sachs (N:GS) said this week that it did not expect a big recovery in prices any time soon.