Wood Group said Dec. 21 it has acquired Kelchner Inc., a privately-owned U.S.-based provider of construction and energy field services. The value of the transaction wasn't disclosed.

The acquisition will add to Houston-based Wood Group's geographical footprint in the major U.S. shale regions, said Dave Stewart, Wood Group PSN CEO.

The addition extends "our presence to Marcellus and Utica, where we will leverage Kelchner’s 65 years of expertise to enhance our client service provision," Stewart said in a statement.

Kelchner will operate within the onshore business of Wood Group PSN Americas, the release said. The company will provide construction capabilities primarily to the midstream and upstream oil and gas sector in the Marcellus and Utica shale basins, and broader industrial sectors.

The firm serves the energy and industrial markets providing turnkey compressor and metering stations, civil work, fabrication, roustabout and well pad and roadway construction services. In 2014 Kelchner generated sales of about $93 million, according to the release.

Kelchner operates from headquarters in Springboro, Ohio, and other locations in the eastern U.S. CEO Todd Kelchner will continue to lead the existing management team and about 375 personnel.