1 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(B) OR (G) OF THE SECURITIES EXCHANGE ACT OF 1934 MESA INC. (Exact name of registrant as specified in its charter) TEXAS 75-2394500 (State of incorporation or organization) (I.R.S. Employer I.D. No.) 1400 WILLIAMS SQUARE WEST 5205 NORTH O'CONNOR BOULEVARD IRVING, TEXAS 75039 (Address of principal executive offices) (Zip Code) Securities to be registered pursuant to Section 12(b) of the Act: Title of each class Name of each exchange on which to be so registered each class is to be registered ------------------- ------------------------------ SERIES A 8% CUMULATIVE CONVERTIBLE NEW YORK STOCK EXCHANGE, INC. PREFERRED STOCK, PAR VALUE $.01 PER SHARE If this Form relates to the registration of a class of debt securities and is effective upon filing pursuant to General Instruction A.(c)(1), please check the following box. [ ] If this Form relates to the registration of a class of debt securities and is to become effective simultaneously with the effectiveness of a concurrent registration statement under the Securities Act of 1933 pursuant to General Instruction A.(c)(2), please check the following box. [ ] Securities to be registered pursuant to Section 12(g) of the Act: NONE (Title of Class) 2 ITEM 1. DESCRIPTION OF REGISTRANT'S SECURITIES TO BE REGISTERED. The description of the Series A 8% Cumulative Convertible Preferred Stock, par value $.01 per share (the "Series A Preferred Stock"), of MESA Inc. (the "Registrant") to be registered hereby, is set forth under the caption "Description of Capital Stock" in the Prospectus, (the "Prospectus") included in the Registration Statement on Form S-3 (Commission File No. 333-03365) initially filed with the Securities and Exchange Commission on May 9, 1996, (the "Registration Statement"), a final form of which will be subsequently filed by the Registrant pursuant to Rule 424(b) under the Securities Act of 1933, as amended. The Registration Statement, including the Prospectus, as each may subsequently be amended, is incorporated herein by reference. ITEM 2. EXHIBITS. 1. Form of Statement of Resolution establishing Series A Preferred Stock (Exhibit 4.1 to the Registration Statement). 2. Form of Series A Preferred Stock Certificate (Exhibit 4.2 to the Registration Statement). 2 3 SIGNATURE Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized. MESA INC. Date: May 17, 1996 By: /s/ Stephen K. Gardner ----------------------------------- Stephen K. Gardner Vice President and Chief Financial Officer 3