With a business partner, Maloney founded a company called North American Drillers in Morgantown in 1984.

The company specialized in drilling large-diameter shafts for the coal, oil and natural gas industries.

Maloney is a member of the Society of Mining Engineers, the West Virginia Coal Mining Institute, the Independent Oil and Gas Association of West Virginia, and the National Groundwater Association.

Maloney used his drilling expertise in support of the Plan B attempt to rescue the 33 trapped Chilean miners.

[9] Maloney defeated Ralph William Clark in the May 8, 2012 primary election to become the Republican nominee.