U.S. West Texas Intermediate (WTI) crude futures were at $52.57 per barrel at 0109 GMT, down 32 cents, or 0.6 percent, from their last close.
Oil prices dipped on Thursday in tepid trading ahead of a meeting by producer group OPEC that is expected to result in a supply cut aimed at draining a glut that has pulled down crude prices by 30 percent since October.
U.S. West Texas Intermediate (WTI) crude futures were at $52.57 per barrel at 0109 GMT, down 32 cents, or 0.6 percent, from their last close.
International Brent crude oil futures were down 17 cents, or 0.3 percent, at $61.39 per barrel.
