EXHIBIT 99.3 STOCK PURCHASE AGREEMENT THIS STOCK PURCHASE AGREEMENT, dated as of July 28, 2009 (this "Agreement"), is by and among HARSHEL REX CHAMBERS ("Rex") and JACKIE ALAN CHAMBERS ("Jackie," and together with Rex, the "Sellers") and PACIFIC...Stock Purchase Agreement • July 31st, 2009 • Platinum Energy Resources Inc • Crude petroleum & natural gas • New York
