North Dakota’s largest oil producer, Whiting Petroleum Corp, struck a confident tone for 2015 on Thursday, saying it will hydraulically fracture all wells it drills even as peers scale back, but its bold tactic prompted a sharp drop in its share price. Executives said they were sure that the company can still make a profit with oil prices around $50 per barrel. Whiting shares dropped three percent as details of the plan were announced on a conference call Thursday morning and were down more than 8 percent in afternoon trading. Though the company has cut capex in half for 2015, some analysts said a deeper reduction is needed. The Denver-based company plans to drill and frack 265 wells this year, mostly in North Dakota but also in Colorado’s Niobrara shale formation. The number is at least 15 percent lower from 2014, though final […]