X0202 4/A 2006-04-28 2006-05-01 1 0000709355 CASTLE ENERGY CORP CECX 0001296791 Hoffmann Martin Richard 1546 HAMPTON HILL CIRCLE MCLEAN VA 22101 1 Common Stock, $0.50 par value 2006-04-28 4 D 0 86000 D 0 D Disposed of pursuant to merger agreement between issuer and Delta Petroleum Corporation in exchange for 100,092 shares of Delta Petroleum Corporation common stock having a market value of $20.03 per share on the effective date of the merger plus cash for any resulting fractional share remaining. This amended Form 4 corrects the previous Form 4 for the Reporting Person filed 01-May-2006 at 16:56 which erroneously indicated that 86,000 shares were acquired when in fact 86,000 shares were disposed of. This amended Form 4 corrects the previous Form 4 for the Reporting Person filed 01-May-2006 at 16:56 which erroneously indicated that 86,000 shares were acquired when in fact 86,000 shares were disposed of. William C. Liedtke III by power of attorney for Martin R. Hoffmann 2006-05-01