1 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): FEBRUARY 7, 1997 MESA INC. (Exact name of registrant as specified in its charter) TEXAS 1-10874 75-2394500 (State or other jurisdiction (Commission File Number) (IRS Employer of incorporation) Identification No.) 1400 WILLIAMS SQUARE WEST 5205 NORTH O'CONNOR BOULEVARD IRVING, TEXAS 75039 (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code: 214/444-9001 2 ITEM 2. ACQUISITION OR DISPOSITION OF ASSETS On February 7, 1997, Mesa Operating Co., a Delaware corporation ("MOC"), entered into a Stock Purchase Agreement with Western Mining Corporation (USA), a Delaware corporation ("WMC"), pursuant to which MOC will acquire all of the outstanding equity of Greenhill Petroleum Corporation, a Delaware corporation and a wholly owned subsidiary of WMC ("Greenhill"). MOC is a wholly owned subsidiary of MESA Inc. ("Mesa") and owns substantially all of Mesa's assets. Pursuant to the Stock Purchase Agreement, MOC will purchase Greenhill for $270.5 million, subject to adjustment as provided therein. A copy of the press release regarding the Stock Purchase Agreement is attached hereto as Exhibit 99 and incorporated herein by reference. The description of the Stock Purchase Agreement included herein does not purport to be complete and is qualified in its entirety by reference to the terms of the Stock Purchase Agreement, a copy of which is attached hereto as Exhibit 10 and incorporated herein by reference. ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS. (a) and (b) MESA Inc. will file the financial statements and pro forma financial information required to be filed pursuant to Item 7 of Form 8-K within 60 days after the date of this Form 8-K pursuant to an amendment to this Form 8-K. (c) Exhibits 10. Stock Purchase Agreement, dated February 7, 1997, between Mesa Operating Co. and Western Mining Corporation (USA) 99. Press Release dated February 10, 1997 -2- 3 SIGNATURE 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. MESA INC. Date: February 20, 1997 By: /s/ STEPHEN K. GARDNER --------------------------------- Stephen K. Gardner Senior Vice President and Chief Financial Officer -3- 4 INDEX TO EXHIBITS EXHIBIT NUMBER DESCRIPTION - ------- ----------- 10. Stock Purchase Agreement, dated February 7, 1997, between Mesa Operating Co. and Western Mining Corporation (USA) 99. Press Release dated February 10, 1997