Allis-Chalmers Energy Inc. is an American, Houston-based, oil company which provides both services and equipment to oil and natural gas companies throughout the Gulf of Mexico and in surrounding states and countries.
The name "Allis-Chalmers" is most well known as the name of the former company, Allis-Chalmers Manufacturing Company.
In February 2011, Allis-Chalmers Energy merged with Seawell to form specialist drilling and well service company Archer.
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