Drillers added rigs in U.S. oilfields for the seventh time in the past eight weeks as declining crude prices fail to hold back activity. Rigs targeting oil in the U.S. rose by 2 to 674 this week, the highest since the last week of April, Baker Hughes Inc. said on its website Friday. Drilling equipment added in the Williston Basin of North Dakota and other shale plays more than offset a declining count in areas like Texas’ Eagle Ford and Permian formations. The crude being pumped out of shale rock in the U.S. has helped create a global glut that pushed prices in New York below $40 a barrel for the first time in more than six years on Friday. At such low prices, the recent drilling increase may be short-lived, and the rig count remains almost 60 percent lower than in October. “We hit bottom, we bounced off […]