X0303 4 2008-12-10 0 0000003982 Allis Chalmers Energy Inc. ALY 0001227412 PEREZ VICTOR M 5075 WESTHEIMER, SUITE 890 HOUSTON TX 77056 0 1 0 0 Chief Financial Officer Common Stock 2008-12-10 4 A 0 25000 A 50000 D These shares were issued as a restricted stock award and therefore no consideration was paid by the Reporting Person. 5,000 shares vest on the first anniversary of the grant date, 5,000 shares vest on the second anniversary of the grant date and 15,000 shares vest on the third anniversary of the grant date. /s/ Victor M. Perez 2008-12-11