Crude oil prices were slightly up on Monday due to the disruptions caused by a tropical storm in the Gulf of Mexico, however China's announcement of its slowest quarterly economic growth limited gains.
International benchmark Brent crude was trading at $67.06 per barrel at 1100 GMT for a 0.5% gain after it ended Friday at $66.72 a barrel.
American benchmark West Texas Intermediate was at $60.49 a barrel at the same time for a 0.46% increase after closing the previous session at $60.21 per barrel.
On Sunday, Tropical Storm Barry shut almost three-quarters of U.S. Gulf of Mexico crude production on the U.S.' Louisiana coast -- a region with oil refineries.
However China's announcement of its slowest quarterly economic growth in at least 27 years on Monday, leading to demand growth worries, caused limited gains in the oil prices.
The National Bureau of Statistics of China figures showed that China's gross domestic product grew at 6.2% in the quarter ended June.
By Ebru Sengul