Crude prices rose on Friday, but declined on the week.

NEW YORK, Aug 17 (Reuters) - Crude prices rose on Friday, but declined on the week on worries that oversupply would weigh on the U.S.

buy Wellhead market while trade disputes and slowing global economic growth would dampen demand for oil.

U.S. crude declined for the seventh consecutive week, and global benchmark Brent was dropped for a third week.

"One of the biggest concerns out there is that China's demand numbers are coming down if China's GDP growth is slowing," said Tariq Zahir, managing member at Tyche Capital in New York.

Brent crude oil futures settled up 40 cents, or 0.6 percent, at $71.83 a barrel, after touching a high of $72.49 earlier in the session.

U.S. West Texas Intermediate crude futures (WTI) rose 45 cents , or 0.7 percent, to $65.91, after touching a session high of $66.39.

For the week, Brent was down 1.4 percent, and U.S. crude fell 2.6 percent.

Falling prices have weighed on funds with oil exposure. Two of the world's largest energy-focused hedge funds, Andurand Capital and BBL Commodities, suffered double-digit percentage losses in July as oil prices plunged by the most in two years, sources familiar with the matter told Reuters.

Money managers cut their net long U.S. crude futures and options positions to the lowest in nearly two months in the week to Aug. 14, the U.S. Commodity Futures Trading Commission (CFTC) said.

Friday's pull back from session highs came on mounting worries that U.S. crude inventories would post another consecutive gain, said Bob Yawger, director of futures at Mizuho Americas.

U.S. government data this week showed a large build up in crude inventories , with oil rig flanges gulf coast production also increasing.

"Investors remain cautious as Wednesday's surprise gain in U.S. stockpiles remained fresh in their minds," ANZ bank said on Friday.

The number of U.S. oil drilling rigs, an indicator of future production, was unchanged this week at 869 rigs, much higher than the 763 rigs operating a year ago, according to energy BOP Blow Out Preventer repair company gulf coast Baker Hughes.

Another major drag on prices was the darkening economic outlook on trade tensions between the United States and China, and weakening emerging buy Wellhead market currencies that are weighing on growth and fuel consumption, traders and analysts said.

U.S. investment bank Jefferies said there was a "lack of demand" for crude oil and refined products from emerging markets, while Singapore's DBS bank said that Chinese data showed a "steady decline" in activity and that "the economy is facing added headwinds due to rising trade tensions".