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U.S. Says Shale Gas Output Rose 24% in May From Year Earlier

Natural-gas production from shale formations rose in May on increased supplies from the Marcellus deposit even after prices fell to a 10-year low, Energy Department data show.

Total output from shale formations in the continental U.S. averaged 25.58 billion cubic feet a day in May, 24 percent higher than a year earlier and up 1.7 percent from April, according to slides that accompany a presentation the department will make to Congress Aug. 1. Shale production has gained 5.7 percent this year.