UPDATE 1-North Dakota's oil output jumps in May, bucking expectations
July 10, 2015 at 12:03 PM EDT
WILLISTON, N.D., July 10 (Reuters) - North Dakota posted a 3 percent increase in daily oil production for May, state regulators said on Friday, a surprising feat that hints the state's Bakken shale formation may be more resilient to sliding crude prices than expected.