Oil futures ended with a loss on Friday as tensions between the U.S. and China raised demand concerns for the commodity, but prices found support for the week from global production cuts and expectations for further reductions. Baker Hughes on Friday reported a 10th straight weekly fall in the number of active U.S. oil rigs. July West Texas Intermediate oil fell 67 cents, or 2%, to settle at $33.25 a barrel on the New York Mercantile Exchange. Based on the front-month contracts, prices rose nearly 13% for the week, according to Dow Jones Market Data.Market Pulse Stories are Rapid-fire, short news bursts on stocks and markets as they move. Visit MarketWatch.com for more information on this news.