Hurricane Harvey intensified early on Friday into potentially the biggest hurricane to hit the US mainland in more than a decade.
Three refineries in Corpus Christi and one further inland at Three Rivers were shutting down before the storm.
Concern that Harvey could cause shortages in fuel supply drove benchmark gasoline prices to a three-week high.
Royal Dutch Shell has brought back online a unit at the 140,000 barrels per day Wesseling site of its Rheinland, Germany, oil refinery after it was shut as a precautionary measure following a fire on Aug. 22, a spokesman said.
Industry monitor Genscape said the crude distillation unit at the site was returning to normal on Aug 24.
GASOLINE
Gunvor sold eight barges of eurobob gasoline during the afternoon window at $551-$555 a tonne fob ARA. Shell bought seven of them, with Varo buying the one.
Elsewhere during the day, 22,000 tonnes traded at $551-$565 a tonne fob Amsterdam-Rotterdam, up from trades at $552 a tonne on Thursday.
Gunvor sold the barges to Shell and Varo.
There were no trades of premium unleaded gasoline in the afternoon window.
The September swap stood at $549.50 a tonne at the close, compared with $550 a tonne.
Trafigura again bid for one cargo fob Aspropyrgos in the afternoon trading window, going up to $555 a tonne, much lower than its bid at $565.50 a tonne the previous day.
The benchmark ebob gasoline refining margin jumped to $14.40 a barrel from $13.70.
Bent crude futures were 28 cents higher at $52.32 a barrel by 1541 GMT.
US front-month RBOB gasoline futures were 1.6 percent higher at 1.6900 a gallon.
The RBOB crack versus US crude stood at $17.66 a barrel, up from $17.40 a barrel.
NAPHTHA
No cargoes traded.