1 EXHIBIT 4.1 27231 COMMON STOCK COMMON STOCK [LOGO] NUMBER SHARES ZQ INCORPORATED UNDER THE LAWS OF THE STATE OF MICHIGAN CUSIP 12589C 10 7 SEE REVERSE FOR CERTAIN DEFINITIONS A CMS ENERGY COMPANY THIS CERTIFICATE IS TRANSFERABLE EITHER IN JACKSON, MICHIGAN OR NEW YORK CITY CMS NOMECO OIL & GAS CO. THIS CERTIFIES THAT SPECIMEN IS THE OWNER OF FULL-PAID AND NON-ASSESSABLE SHARES OF THE COMMON STOCK, WITHOUT PAR VALUE of CMS NOMECO Oil & Gas Co., transferable on the books of the Company by the holder hereof in person or by duly authorized attorney upon the surrender of this certificate properly endosed. This certificate and the shares represented hereby are issued and shall be held subject to all of the provisions of the Articles of Incorporation and the By-Laws of the Company, as amended, to all of which the holder by acceptance of this certificate assents. This certificate is not valid unless countersigned by the transfer agent and registered by the registrar. Witness the facsimile seal of the Company and the facsimile signatures of its duly authorized officers. DATED: Victor J. Fryling SPECIMEN COUNTERSIGNED AND REGISTERED: CHAIRMAN OF THE BOARD CMS NOMECO OIL & GAS CO. Paul E. Geiger TRANSFER AGENT SPECIMEN AND REGISTRAR, SECRETARY BY AUTHORIZED SIGNATURE. [CMS NOMECO OIL & GAS CO. SEAL] 00000 American Bank Note Company 2 CMS NOMECO OIl & GAS CO. The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations: TEN COM -- as tenants in common UNIF GIFT MIN ACT -- Custodian -------- -------- TEN ENT -- as tenants by the entireties (Cust) (Minor) JT TEN -- as joint tenants with right under Uniform Gifts to Minors of survivorship and not as tenants in common Act ------------------ (State) Additional abbreviations may also be used though not in the above list. THE COMPANY WILL FURNISH TO A SHAREHOLDER UPON REQUEST AND WITHOUT CHARGE A FULL STATEMENT OF THE DESIGNATION, RELATIVE RIGHTS, PREFERENCES AND LIMITATIONS OF THE SHARES OF EACH CLASS AUTHORIZED TO BE ISSUED, AND THE DESIGNATION, RELATIVE RIGHTS, PREFERENCES AND LIMITATIONS OF EACH SERIES SO FAR AS THE SAME HAVE BEEN PRESCRIBED AND THE AUTHORITY OF THE BOARD OF DIRECTORS TO DESIGNATE AND PRESCRIBE THE RELATIVE RIGHTS, PREFERENCES AND LIMITATIONS OF OTHER SERIES. THE REQUEST FOR SUCH STATEMENT MAY BE ADDRESSED TO THE OFFICE OF THE SECRETARY OF THE COMPANY IN JACKSON, MICHIGAN. For value received, hereby sell, assign and transfer unto PLEASE INSERT SOCIAL --------- SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE [ ] ------------------------------------------------------------ - ------------------------------------------------------------------------------ PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS INCLUDING POSTAL ZIP CODE OF ASSIGNEE - ------------------------------------------------------------------------------ - ------------------------------------------------------------------------------ Shares - ----------------------------------------------------------------------- of the capital stock represented by the within Certificate, and do hereby irrevocably constitute and appoint --------------------------------------------- - ------------------------------------------------------------------------------ Attorney to transfer the said stock on the books of the within-named Company with full power of substitution in the premises. Dated, ---------------------------- ---------------------------- SIGNATURE ---------------------------- SIGNATURE The signature(s) to this assignment must correspond with the name(s) as written upon the face of the certificate in every particular. IMPORTANT --------- THE SIGNATURE(S) OF THE ASSIGNOR(S) MUST BE GUARANTEED (NOT NOTARIZED) BY A PARTICIPANT IN AN APPROVED SIGNATURE GUARANTEE PROGRAM.