Brent crude futures for April , due to expire on Tuesday, were up by 39 cents to $82.84 per barrel by 0718 GMT.
Likewise, U.S. West Texas Intermediate (WTI) crude futures gained 61 cents to $76.29 a barrel.
Brent and WTI futures were both on track, however, for monthly losses of around 2.2% and 3.8% respectively, with WTI likely to hit a four-month streak of declines.
JPMorgan's oil analysts maintained their 2023 average price forecast on Brent crude futures at $90 per barrel.
Seven analysts polled also estimated that gasoline stocks rose by about 700,000 barrels.