Allis-Chalmers Rental Services S-4/A Registration of securities issued in business combination transactions (amended)

Exhibit 23.1

12 Greenway Plaza, Suite 1202

Houston, Texas 77046-1289

Phone  713-561-6500

Fax  713-968-7128

Web  www.uhy-us.com

 

CONSENT OF UHY MANN FRANKFORT STEIN & LIPP CPAs, LLP
INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the use in this Registration Statement on Form S-4 of Allis-Chalmers Energy Inc. and to the inclusion therein of our report dated March 21, 2006 relating to the consolidated financial statements of Allis-Chalmers Energy Inc. as of December 31, 2005 and 2004, and for the years then ended. We also consent to the reference to our firm under the caption “Experts” in such Registration Statement.

/s/ UHY Mann Frankfort Stein & Lipp CPAs, LLP  

Houston, Texas
September 8, 2006

An Independent Member of Urbach Hacker Young International Limited