X0202 4 2007-06-14 0 0000003982 Allis Chalmers Energy Inc. ALY 0001317824 Bryan David Keith 5075 WESTHEIMER, #890 HOUSTON TX 77056 0 0 0 1 See Remarks Common Stock 2007-06-14 4 A 0 37500 A 37500 D These shares were issued as a restricted stock award and therefore no consideration was paid by the Reporting Person. 7,500 shares vest on the first anniversary of the grant date, 7,500 shares vest on the second anniversary of the grant date and 22,500 shares vest on the third anniversary of the grant date. The Reporting Person is President and Chief Executive Officer of Strata Directional Technology, Inc. /s/ David Bryan 2007-07-13