There will be blood

WALL STREET loves a good scrap almost as much as the wildcatters who drill for oil do. No wonder that the fight over the finances of America’s shale-oil industry has turned nasty. In one corner are shortsellers, including David Einhorn, a hedge-fund manager whose scalps include Lehman Brothers. They argue that “fracking”—the business of blasting oil out of rocks using water, sand and chemicals—is a bottomless pit into which too much cash has been thrown.In the other corner are America’s oil pioneers, who say that shale can thrive even though the benchmark American oil price has dropped from over $100 a barrel last year to $57 today. The oilmen are backed by plenty of other investors who are still pumping money into shale firms: some $35 billion of equity and bonds has been raised since December.