Oil prices were on Wednesday weighed down by economic growth concerns that dampened the outlook for fuel consumption, but supported by voluntary supply cuts led by producer club OPEC and by US sanctions against Iran and Venezuela. International Brent crude oil futures were at $67.55 a barrel at 0432 GMT, down 6 cents, or 0.1 percent, from their last close. Brent on Tuesday touched its highest since Nov. 16 at $68.20 a barrel. US West Texas Intermediate (WTI) crude futures were at $58.92 per barrel, down 11 cents, or 0.2 percent, from their previous settlement. WTI on Tuesday reached its strongest level since Nov. 12 at $59.57 a barrel. Analysts said an economic slowdown could soon dent fuel consumption. “Global growth concerns and ongoing oversupply fears (are) creating headwinds for the commodity,” said Lukman Otunuga, analyst at futures brokerage FXTM. Asian business confidence held near three-year lows in the first quarter as a US-China trade dispute dragged on, pulling down a global economy that is already on a downward path, a Thomson Reuters/INSEAD survey found on Wednesday. The dips come after crude prices rose by more than a quarter this year, pushed up by a pledge led by the Organization of the Petroleum Exporting Countries (OPEC) to withhold around 1.2 million barrels per day (bpd) of supply as well as by US sanctions against oil exporters Iran and Venezuela.