If OPEC thought the 26 percent drop in oil prices since October might rein in U.S. shale production like the last sharp drop did four years ago, it might have to think again. U.S. shale firms are more profitable than ever after a strong third quarter, according to a Reuters analysis of results for 32 independent producers. These companies are producing more efficiently, generating more cash flow and consolidating in a wave of mergers, the data show. Results at 32 independent shale explorers show nearly a third generated more cash from operations than they spent on drilling and shareholder payouts, a group including Devon Energy, EOG Resources and Continental Resources. A year ago, there were just three companies on […]