SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 29, 1998 PIONEER NATURAL RESOURCES COMPANY (Exact name of Registrant as specified in its charter) Delaware 1-13245 75-2702753 (State or other jurisdiction of Registration (I.R.S. Employer incorporation or organization) File Number Identification Number) 1400 Williams Square West, 5205 N. O'Connor Blvd., Irving, Texas 75039 (Address of principal executive offices) (Zip code) Registrant's Telephone Number, including area code : (972) 444-9001 Not applicable (Former name, former address and former fiscal year, if changed since last report) Page 1 of 3 pages. There are no exhibits. Pioneer Natural Resources Company Item 5. Other Events Arthur L. Smith, a member of the Board of Directors, has resigned as a result of accepting the position of Chairman and CEO with Torch Energy Advisors Incorporated. Jon Brumley, Chairman, said, "Our shareholders and employees are grateful to Art for his faithful service and commitment to excellence. We wish him success in his new endeavor." Headquartered in Dallas, Pioneer is one of the largest independent (non-integrated) exploration and production oil and gas companies in North America, with major operations in the United States, Canada and Argentina. 2 PIONEER NATURAL RESOURCES COMPANY S I G N A T U R E S Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. PIONEER NATURAL RESOURCES COMPANY Date: June 2, 1998 By: /s/ M. Garrett Smith -------------------------------- M. Garrett Smith Executive Vice President and Chief Financial Officer Date: June 2, 1998 By: /s/ Rich Dealy -------------------------------- Rich Dealy Vice President and Chief Accounting Officer 3