Mountaineer Gas is an independently operating, regulated local gas distribution company. It is based in West Virginia, US where it is the market leader.

Mountaineer Gas supplies natural gas to 220,000 residential and industrial end-users in the state. Its distribution system comprises over 5,200 miles of mains and 250,000 service lines.

The iCON Team led the acquisition of interests in Mountaineer Gas in February 2011, February 2012 and April 2017 and realised its interest in 2021.