1 EXHIBIT 4 INCORPORATED UNDER THE LAWS COMMON STOCK OF THE STATE OF DELAWARE PAR VALUE $.01 THIS CERTIFICATE IS TRANSFERABLE CUSIP 961415 10 6 IN NEW YORK, NY AND DENVER, CO SEE REVERSE FOR CERTAIN DEFINITIONS WESTPORT RESOURCES CORPORATION This certifies that is the owner of FULLY PAID AND NON-ASSESSABLE SHARES OF THE COMMON STOCK OF Westport Resources Corporation, transferable on the books of the Corporation by the holder hereof in person or by duly authorized attorney, upon surrender of this Certificate properly endorsed. This Certificate is not valid until countersigned by the Transfer Agent and registered by the Registrar. Witness the facsimile corporate seal and the facsimile signatures of its duly authorized officers. DATED /s/ DONALD D. WOLF /s/ BARTH E. WHITHAM CHAIRMAN OF THE BOARD PRESIDENT, CHIEF OPERATING OFFICER AND SECRETARY COUNTERSIGNED AND REGISTERED: COMPUTERSHARE TRUST COMPANY, INC. P.O. Box 1596 Denver, Colorado 80201 TRANSFER AGENT AND REGISTRAR BY AUTHORIZED SIGNATURE 2 [WESTPORT RESOURCES CORPORATION LOGO] WESTPORT RESOURCES CORPORATION THE CORPORATION WILL FURNISH WITHOUT CHARGE TO EACH STOCKHOLDER WHO SO REQUESTS THE POWERS, DESIGNATIONS, PREFERENCES AND RELATIVE, PARTICIPATING, OPTIONAL OR OTHER SPECIAL RIGHTS OF EACH CLASS OF STOCK OR SERIES THEREOF OF THE CORPORATION, AND THE QUALIFICATIONS, LIMITATIONS OR RESTRICTIONS OF SUCH PREFERENCES AND/OR RIGHTS. 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 of 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. 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 Corporation with full power of substitution in the premises. Dated, ____________________ NOTICE: X ____________________________________ THE SIGNATURE(S) TO THIS AS- (SIGNATURE) SIGNMENT MUST CORRESPOND WITH THE NAME(S) AS WRITTEN UPON THE FACE OF THE CERTIFI- CATE IN EVERY PARTICULAR WITHOUT ALTERATION OR EN- LARGEMENT OR ANY CHANGE WHATEVER. X ____________________________________ (SIGNATURE) -------------------------------------- THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM), PURSUANT TO S.E.C. RULE 17Ad-15. -------------------------------------- SIGNATURE(S) GUARANTEED BY: -------------------------------------- - ------------------------------------ ---------------------------------------------------- AMERICAN BANK NOTE COMPANY PRODUCTION COORDINATOR: STEVE KOWALSKI: 215-764-8620 55TH STREET AT SANSOM STREET PROOF OF JUNE 29, 2000 PHILADELPHIA, PA 19139 WESTPORT (215) 764-8600 H 66922 back - ------------------------------------ ---------------------------------------------------- SALES: M. GARRETT: 214-823-2700 OPERATOR: eg - ------------------------------------ ---------------------------------------------------- /NET/BANKNOTE/HOME 14/WESTPORT/66922 NEW - ------------------------------------ ---------------------------------------------------- LOGO IS BLACK