Oil prices were mixed Thursday as the market reacted to a report of lower U.S. refinery utilization rates.
Brent oil prices fell following confirmation that Oman's main oil port hadn't suffered major damage from Cyclone Gonu.
"The most significant thing yesterday was a big fall in refinery utilization," said Michael Davies, an analyst at Sucden. "That's the really big story - there are going to be concerns whether the U.S. can cope with gasoline over summer."
The U.S. Department of Energy said average throughput rates in the week to June 1 were at 89.6 percent of capacity, down 1.5 percentage points.
Light, sweet crude for July delivery rose 24 cents to US$66.17 a barrel in electronic trading on the New York Mercantile Exchange at midday in Europe. On Wednesday, the contract rose 35 cents to settle at US$65.96 a barrel.