Exhibit 99.1 VOTING AGREEMENT AND IRREVOCABLE PROXY This Voting Agreement and Irrevocable Proxy (this "Agreement") dated as of November ___, 2005 is executed by and among Delta Petroleum Corporation, a Delaware corporation ("Holdings"), Delta...Voting Agreement and Irrevocable Proxy • December 14th, 2005 • Castle Energy Corp • Crude petroleum & natural gas • Delaware
