X0202 4 2007-10-04 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 2007-10-04 4 A 0 75000 A 112500 D These shares were issued as a restricted stock award and therefore no consideration was paid by the Reporting Person. 7,500 shares vests on October 4, 2009, 15,000 shares vests on October 4, 2010, 30,000 shares vests on October 4, 2011, and 22,500 shares vests on October 4, 2012. The Reporting Person is President and CEO of Strata Directional Technology, Inc. /s/ David K. Bryan 2007-10-05