AMENDMENT TO BUY-SELL AND STOCK OPTION AGREEMENT ------------------------------------------------ THIS AMENDMENT TO BUY-SELL AND STOCK OPTION AGREEMENT is made August 29, 1997 and is effective as of June 29, 1997 by and between KENNETH W. BRILL ("Mr....Buy-Sell and Stock Option Agreement • September 30th, 2002 • Energy Corp of America • Crude petroleum & natural gas
