Oil rose more than 6% on Wednesday after a ship ran aground in the Suez Canal, and worries that the incident could tie up crude shipments gave prices a boost after a slide over the last week.
The crude benchmarks, U.S. crude and London-based Brent, added to gains after U.S. inventory figures showed a further rebound in refining activity, suggesting U.S. refiners are mostly recovered from the cold snap that slammed Texas in February.
The gains appeared to stabilize the market that had slumped after early this month, when oil prices hit their highest levels this year earlier on expectations for demand recovery that have since been dashed as European nations re-entered lockdowns to halt another wave of the pandemic.
Oil has recovered from historic lows reached last year as OPEC and its allies made record output cuts. On Tuesday, both benchmarks touched their lowest since February.
A giant container ship has been blocking the Suez Canal for more than a day, but it has been partially refloated, with traffic along the fastest shipping route from Europe to Asia expected to resume soon, port agent GAC said on Wednesday.
"Price support is coming courtesy of a transport blockage," said Stephen Brennock of oil broker PVM. "Yet market sentiment will likely struggle to shake off its newfound bearish trend."
Oil prices briefly pared gains after U.S. Energy Information Administration data showed crude, gasoline and distillate stocks rose last week despite refinery runs recovering after a winter storm shut Texas refineries last month.
"The refiners are coming out of maintenance and recovering from the power outages. The expectation is now that they're getting back to work, we will see crude inventories trending lower in the coming weeks," said Phil Flynn, senior analyst at Price Futures Group in Chicago.
Italy, France and other European countries have re-imposed movement restrictions. But German Chancellor Angela Merkel said she was reversing a decision for a stricter Easter shutdown. Germany is Europe's biggest oil consumer.
OPEC and its allies, known as OPEC+, meet on April 1 to consider whether to unwind more of their output cuts.