UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date:	October 3, 2006

Form:	S-4
CIK: 0000003982 Company Name: Allis Chalmers Energy Inc. File Number: 333-136978
CIK: 0001373578 Company Name: Allis-Chalmers GP, LLC File Number: 333-136978-12
CIK: 0001373611 Company Name: Allis-Chalmers LP, LLC File Number: 333-136978-11
CIK: 0001373580 Company Name: Allis-Chalmers Management, LP File Number: 333-136978-10
CIK: 0001373577 Company Name: Allis-Chalmers Production Services, Inc. File Number: 333-136978-09
CIK: 0001373576 Company Name: Allis-Chalmers Rental Tools, Inc. File Number: 333-136978-08
CIK: 0001373575 Company Name: Allis-Chalmers Tubular Services, Inc. File Number: 333-136978-07
CIK: 0001373574 Company Name: AirComp L.L.C. File Number: 333-136978-06
CIK: 0001373573 Company Name: Mountain Compressed Air, Inc. File Number: 333-136978-05
CIK: 0001373572 Company Name: OilQuip Rentals, Inc. File Number: 333-136978-04
CIK: 0001373579 Company Name: Rogers Oil Tool Services, Inc. File Number: 333-136978-03
CIK: 0001023751 Company Name: STRATA DIRECTIONAL TECHNOLOGY, INC. File Number: 333-136978-02
CIK: 0000875495 Company Name: TARGET ENERGY, INC. File Number: 333-136978-01