Brent crude was down 15 cents, or 0.2%, at $64.83 a barrel by 0115 GMT, after gaining 0.6% on Monday.
Oil prices fell on Tuesday as shipping traffic resumed through the Suez Canal after days on hold and attention switched to an OPEC+ meeting this week where the extension of supply curbs may be on the table amid new coronavirus pandemic lockdowns.
Brent crude was down 15 cents, or 0.2%, at $64.83 a barrel by 0115 GMT, after gaining 0.6% on Monday. U.S. oil was down 1 cent at $61.55 a barrel, having fallen 1% in the previous session, as reported by Reuters.
Ships were moving through the Suez Canal again on Tuesday after tugs refloated the giant Ever Given container carrier, which had been blocking a narrow section of the passage for almost a week, causing a huge build-up of vessels around the waterway.
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They will discuss whether to keep in place curbs on output that have kept millions of barrels a day off the market to support prices, a strategy that has largely worked in recent months.
Saudi Arabia is prepared to accept an extension of the production cuts through June, and is also ready to prolong voluntary unilateral curbs amid the latest wave of coronavirus lockdowns, a source briefed on the matter said on Monday.