Below are the three companies in the Oil & Gas Exploration & Production industry with the highest debt to asset ratios. The Debt/Asset ratio shows the proportion of a company's assets that are financed through debt. If the ratio is greater than one, most of the company's assets are financed through debt.Northern Oil And ranks highest with a a debt to asset ratio of 154.89. Isramco Inc is next with a a debt to asset ratio of 88.13. Ep Energy Corp-A ranks third highest with a a debt to asset ratio of 82.51.