UPDATE 1-U.S. oil drillers add rigs despite crude price collapse-Baker Hughes
July 24, 2015 at 13:58 PM EDT
July 24 (Reuters) - U.S. oil producers added 21 oil rigs in the past week, the most in over a year, data showed on Friday, suggesting that drillers were moving more aggressively than expected, just before crude prices' latest dive down.