United States securities and exchange commission logo October 7, 2021 James P. Henderson Excutive Vice President Finance and Chief Financial Officer Whiting Petroleum Corporation 1700 Lincoln Street, Suite 4700 Denver, Colorado 80203-4547 Re: Whiting Petroleum Corporation Form 10-K for the Fiscal Year Ended December 31, 2020 Filed February 25, 2021 File No. 001-31899 Dear Mr. Henderson: We have reviewed your August 17, 2021 response to our comment letter and have the following comments. In some of our comments, we may ask you to provide us with information so we may better understand your disclosure. Please respond to these comments within ten business days by providing the requested information or advise us as soon as possible when you will respond. If you do not believe our comments apply to your facts and circumstances, please tell us why in your response. After reviewing your response to these comments, we may have additional comments. Unless we note otherwise, our references to prior comments are to comments in our August 3, 2021 letter. Form 10-K for the Fiscal Year Ended December 31, 2020 Properties Proved Undeveloped Reserves, page 42 1. We have read your response to comment 1 and note that you propose to include a narrative explanation in your future filings for all of the material changes that occurred during the year in your proved undeveloped reserves. The example illustrating your proposed changes due to revisions for the year ended December 31, 2020 includes a downward adjustment of 8.4 MMBoe that is attributed to various other revisions. Please expand your explanation in future filings to describe the individual factors that are represented as a combination of various other revisions so that the change in net reserve quantities between periods is fully explained. Refer to Item 1203(b) of Regulation S-K. James P. Henderson FirstName LastNameJames P. Henderson Whiting Petroleum Corporation Comapany October NameWhiting Petroleum Corporation 7, 2021 October Page 2 7, 2021 Page 2 FirstName LastName Supplemental Disclosures About Oil and Gas Producing Activities (Unaudited) Standardized Measure of Discounted Future Net Cash Flows, page 115 2. We have read your response to comments 6 and 7 and note that you systematically omit your estimates of the net asset retirement costs as part of the future development costs used in the calculation of your standardized measure. Disclosure on page 63 of your filing indicates your asset retirement obligations represent estimated future costs that must be incurred in accordance with applicable local, state and federal laws and the terms of your lease agreements. Furthermore, the definition of Discounted Future Net Cash Flows Related to Proved Oil and Gas Reserves referencing FASB ASC 932-235-50-30, 50-31, and 55-6 under Amendments to the XBRL Taxonomy in the Accounting Standards Update, Extractive Activities-Oil and Gas (Topic 932) notes that future cash flows related to the settlement of an asset retirement obligation are included in the disclosure. The requirement pursuant to FASB ASC 932 is also consistent with guidance provided by the Division of Corporation Finance in the letter dated February 2004 to registrants primarily engaged in the production of oil and gas regarding the preparation of their filings with the Commission. The letter indicates the staff believes that an entity should include the future cash flows related to the settlement of an asset retirement obligation in its standardized measure disclosure. The letter also indicates that the requirement to disclose net cash flows relating to an entity s interest in oil and gas reserves [pursuant to FASB Statement No. 69, paragraph 30] requires an entity to include the cash outflows associated with the settlement of an asset retirement obligation and that the exclusion of the cash flows associated with a retirement obligation would be a departure from the required disclosure. Based on the costs provided in your response, it appears that your omission of the estimated asset retirement obligations results in an understatement of your future development costs by approximately 37.4%, 18.0% and 14.5%, an overstatement of your future net cash flows of approximately 14.9%, 5.1% and 3.2%, and an overstatement of your standardized measure by approximately 10.4%, 1.4% and 1.2% for the years ended December 31, 2020, 2019, and 2018, respectively. Please provide us with an illustration of the disclosure revisions relating to your presentation of the standardized measure and the changes therein to assure compliance with the regulatory requirements pursuant to FASB ASC 932. James P. Henderson Whiting Petroleum Corporation October 7, 2021 Page 3 You may contact John Hodgin, Petroleum Engineer, at (202) 551-3699 if you have questions regarding comments. Please contact Craig Arakawa, Branch Chief, at (202) 551-3650 with any other questions. FirstName LastNameJames P. Henderson Sincerely, Comapany NameWhiting Petroleum Corporation Division of Corporation Finance October 7, 2021 Page 3 Office of Energy & Transportation FirstName LastName