Oil prices rose on Tuesday after two days of losses, with some risk appetite returning as the market awaited clues from the US Federal Reserve chairman on potential rate rises and as some oil producers continued to struggle to beef up output.
Brent crude futures gained 26 cents, or 0.3 per cent, to $81.13 a barrel at 0156 GMT, after dropping 1 per cent in the previous session.
US West Texas Intermediate (WTI) crude futures rose 30 cents, or 0.4 per cent, to $78.53 a barrel, after falling 0.8 per cent on Monday.
A weaker US dollar helped support oil prices on Tuesday, as it makes oil cheaper for those holding other currencies.
