Empire Gas Corporation 1700 South Jefferson Street Lebanon, Missouri 65536 May 7, 1994 The Dolly Francine Plaster Trust dated July 30, 1984 The Tammy Jane Plaster Trust dated July 30, 1984 The Cheryl Jean Plaster Schaefer Trust dated October 30, 1988 The Cheryl Jean Plaster Schaefer Trust dated July 30, 1984 RE: STOCK REDEMPTION AGREEMENT Ladies and Gentlemen: Empire Gas Corporation (the "Company") agrees to purchase from the Dolly Francine Plaster Trust dated July 30, 1984 (the "D. Plaster Trust"), the Tammy Jane Plaster Trust dated July 30, 1984 (the "T. Plaster Trust"), the Cheryl Jean Plaster Schaefer Trust dated October 30, 1988 (the "1988 C. Schaefer Trust"), and the Cheryl Jean Plaster Schaefer Trust dated July 30, 1984 (the "1984 C. Schaefer Trust") (collectively the "Sellers"), and each of the Sellers agrees to sell to the Company the number of shares of common stock, $.001 par value, of the Company (the "EGAC Common Stock") as indicated below at a purchase price of one (1) share of common stock, no par value, of Energy Empire Energy Corporation ("Energy Common Stock") for each share of EGAC Common Stock: NUMBER OF SHARES ---------------------------- NAME OF SELLER EGAC COMMON STOCK ENERGY COMMON STOCK -------------- ----------------- ------------------- D. Plaster Trust 125,000 125,000 T. Plaster Trust 125,000 125,000 1988 C. Schaefer Trust 80,000 80,000 1984 C. Schaefer Trust 129,000 129,000 ------- ------- 459,000 459,000 ------- ------- ------- ------- The obligations of the Company and the Sellers under this agreement are subject to the completion of the transactions contemplated by the Stock Redemption Agreement (the "Stock Redemption Agreement"), dated as of the date of this agreement, among the Company, Empire Gas Operating Corporation, Empire Energy Corporation, Robert W. Plaster, Paul S. Lindsey, Jr., Stephen R. Plaster, Joseph L. Schaefer, the Robert W. Plaster Trust dated December 13, 1988, the Stephen Robert Plaster Trust dated October 30, 1988, the Stephen Robert Plaster Trust dated July 30, 1984, and Empire Ranch, Inc., Empire Airlines, Inc., Missouri corporations, and Evergreen National Corporation, a Florida Corporation. The purchase and sale of shares set forth in this agreement shall take place simultaneously with the Closing under the Stock Redemption Agreement. Each of the Sellers hereby makes severally but not jointly the representation and warranties to the Company and to Empire Energy Corporation that are set forth in Section 5 of the Stock Redemption Agreement. If you agree to this purchase agreement, please indicate your agreement by signing in the space indicated below. Very truly yours, Empire Gas Corporation By: /S/ Paul S. Lindsey, Jr. ---------------------------- By signing below, the undersigned agrees to the terms of this purchase agreement. Dolly Francine Plaster Trust dated July 30, 1984 By: /S/ Stephen Robert Plaster ----------------------------- Stephen Robert Plaster, Trustee - 2 - Tammy Jane Plaster Trust dated July 30, 1984 By: /S/ Stephen Robert Plaster ----------------------------- Stephen Robert Plaster, Trustee Cheryl Jean Plaster Schaefer Trust dated October 30 1988 By: /S/ Cheryl J. Plaster Schaefer --------------------------------- Cheryl J. Plaster Schaefer, Trustee and By: /S/ Lynn C. Hoover -------------------------- Lynn C. Hoover, Trustee Cheryl Jean Plaster Schaefer Trust dated July 30, 1984 By: /S/ Stephen Robert Plaster ----------------------------- Stephen Robert Plaster, Trustee - 3 -