MarketWatch | OPEC, have no fear: The US oil-shale output crash is here MarketWatch Shale-oil production is climbing, but that growth is slowing down, said Flynn. He pointed out that while the number of U.S. rigs drilling for oil has grown for 23 weeks in a row, based on Baker Hughes BHI, -0.61% data, new-well oil production per rig ... Oil Rebounds Despite Sour Sentiment |