CNBC | US oil tumbles 4.7% to settle at $44.68 a barrel CNBC U.S. oil prices fell about 5 percent on Friday after U.S. energy firms cut oil rigs for a third week in a row this week, data showed on Friday, a sign the latest crude price weakness was causing drillers to put on hold plans announced several months ... Drillers idle rigs for third week amid low oil prices Oil rig count tumbles for 3rd straight week Oil prices fall on economic concerns |