Whiting Petroleum Corp., one of the largest producers in North Dakota, spent about $1.68 in the first quarter for every $1 it took in from operations, according to S&P Global Market Intelligence. In 2016, they spent 92 cents for every dollar they took in after outspending at nearly a two to one ratio in 2014 and 2015. A Whiting spokesman said that the company generated cash "in line" with its spending in the first quarter when the effects of working capital are excluded.