X0202 4 2004-10-11 0000003982 ALLIS CHALMERS CORP ALY 0001232680 WILDE DAVID 5075 WESTHEIMER, SUITE 890 HOUSTON, TX 77056 0 0 0 1 See Explanation of Responses Option to Purchase Common Stock 4.85 2004-10-11 4 A 0 110000 0 A 2014-10-11 Common Stock, par value $.01 per share 110000 110000 D The option is exercisable (a) immediately with respect to 36,667 shares, (b) on October 11, 2005 with respect to an additional 36,666 shares, and (c) on October 11, 2006 with respect to the remaining 36,667 shares. Not applicable David Wilde is President and COO of Strata Directional Technologies, Inc., a wholly-owned subsidiary of Allis-Chalmers Corporation. David Wilde 2004-10-13