Allis-Chalmers Energy to Participate in the Natixis Bleichroeder Second Annual Hidden Gems Conference

Allis-Chalmers Energy, Inc. (NYSE:ALY) today announced that it will be participating in the Natixis Bleichroeder Second Annual Hidden Gems conference to be held October 13 - 14, 2008.

Victor M. Perez, Chief Financial Officer and Terry Keane, Senior Vice President – Oilfield Services of Allis-Chalmers are scheduled to make a presentation on Tuesday, October 14, 2008, at approximately 11:00 am Eastern Time. To listen to the live audio webcast and view Allis-Chalmers’ slideshow, visit the Company’s website at http://www.alchenergy.com. A replay of the webcast and slideshow will be available within 24 hours of the live presentation and will remain available on the Company’s website for approximately 30 days.

About Allis-Chalmers

Allis-Chalmers Energy Inc. is a Houston-based multi-faceted oilfield services company. We provide services and equipment to oil and natural gas exploration and production companies, domestically primarily in Texas, Louisiana, New Mexico, Colorado, Oklahoma, Mississippi, Wyoming, Arkansas, West Virginia, offshore in the Gulf of Mexico, and internationally, primarily in Argentina and Mexico. Allis-Chalmers provides directional drilling services, casing and tubing services, underbalanced drilling, production and workover services with coiled tubing units, rental of drill pipe and blow-out prevention equipment, and international drilling and workover services. For more information, visit our website at http://www.alchenergy.com or request future press releases via email at http://www.b2i.us/irpass.asp?BzID=1233&to=ea&s=0.