Both main contracts tumbled yesterday after Federal Reserve boss Janet Yellen indicated a possible US rate hike this year, sending the greenback rallying and making crude more expensive to holders of other currencies.
Investors moved in to pick up bargains Tuesday and at about 0400 GMT, US benchmark West Texas Intermediate rose 21 cents, or 0.45 per cent, to USD 47.19 while Brent was 13 cents, or 0.26 per cent, up at USD 49.39.
"It's probably natural to see some bounce after yesterday's per cent fall," said Bernard Aw, market strategist at IG Markets in Singapore.
"As oil approaches the upper end of the USD 40-50 range, we need confirmation that oil majors are heading towards an agreement to stabilise the market for oil prices to push higher."
The commodity has rallied in August on hopes Moscow and the Organization of the Petroleum Exporting Countries will find an agreement to limit production.