United States securities and exchange commission logo August 24, 2020 Richard P. Dealy Executive Vice President and Chief Financial Officer Pioneer Natural Resources Company 777 Hidden Ridge Irving, Texas 75038 Re: Pioneer Natural Resources Company Form 10-K for the Fiscal Year Ended December 31, 2019 10-K filed February 24, 2020 File No. 001-13245 Dear Mr. Dealy: 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, Division of Corporation Finance Office of Energy & Transportation
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