Stacked rigs are seen along with other idled oil drilling equipment at a depot in Dickinson, North Dakota June 26, 2015. U.S. energy firms cut oil rigs for a third week in a row this week, data showed on Friday, a sign that the latest crude price weakness was causing drillers to put on hold plans announced several months ago to return to the well pad. Drillers removed eight rigs in the week ended Sept. 18, bringing the total rig count down to 644, after cutting 23 rigs over the prior two weeks, oil services company Baker Hughes Inc said in its closely followed report. That was the biggest three-week decline since May. Those reductions cut into the 47 oil rigs energy firms added in July and August after some drillers followed through on plans to add rigs announced in May and June when U.S. crude futures averaged $60 […]