X0201 4 2004-03-22 0000003982 ALLIS CHALMERS CORP ACLM 0001232680 WILDE DAVID 7660 WOODWAY, SUITE 200 HOUSTON TX 77063 0 0 0 1 See Explanation of Responses Option to Purchase Common Stock .55 2004-03-22 4 A 0 500000 0 A 2013-12-16 Common Stock, par value $0.15 per share 500000 500000 D The option is exercisable (a) immediately with respect to 166,667 shares, (b) on December 16, 2004 with respect to an additional 166,667 shares, and (c) on December 16, 2005 with respect to the remaining 166,666 shares. Not applicable. David Wilde is President and COO of Strata Directional Technologies, Inc., a wholly-owned subsidiary of Allis-Chalmers Corporation. David Wilde 2004-03-24