MELBOURNE, Dec 20 (Reuters) - Oil prices rose in early trade on Tuesday, shored up by a weaker dollar and a U.S. plan to restock its Strategic Petroleum Reserve, but gains were limited by uncertainty over the impact of rising COVID-19 cases in China, the world's top oil importer.
Brent crude futures advanced 61 cents, or 0.8%, to $80.40 a barrel at 0124 GMT, adding to a 76 cent gain in the previous session.
U.S. West Texas Intermediate (WTI) crude futures rose 65 cents, or 0.9%, to $75.84 barrel, after climbing 90 cents in the previous session.
A weaker U.S. dollar has also buoyed prices, with the dollar index around 104.7, as it makes oil cheaper for those holding other currencies.
China on Tuesday reported a jump in new confirmed coronavirus cases to 2,722 on Dec. 19, up from 1,995 a day earlier.