TEXT-EXTRACT 2 filename2.txt Mail Stop 4628 October 3, 2018 Via E-mail Russell T. Kelley, Jr. Chief Financial Officer Extraction Oil & Gas, Inc. 370 17th Street, Suite 5300 Denver, Colorado 80202 Re: Extraction Oil & Gas, Inc. Form 10-K for Fiscal Year Ended December 31, 2017 Filed February 27, 2018 File No. 001-37907 Dear Mr. Kelley: We have completed our review of your filing. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, /s/ Brad Skinner Brad Skinner Senior Assistant Chief Accountant Office of Natural Resources