CPW has been providing safe and reliable natural gas to Greenwood county for over 70 years. The natural gas unit, which began operation in 1940, was initially operated by the City of Greenwood which at the time manufactured and distributed liquid petroleum gas. In 1946, the natural gas system became part of the Combined Public Utility System.

The CPW operates the natural gas unit within a territory that extends from near the town of Chappells, SC to Belton, SC. The territory includes portions of Greenwood, Abbeville, Anderson, Laurens, and Greenville counties. Besides the city of Greenwood, the unit operates franchises and is the exclusive natural gas supplier to the towns of Donalds, Hodges, Ware Shoals, Ninety Six, and Promised Land in South Carolina.

The natural gas system serves an area of 310 square miles with interconnections with two interstate pipelines; Transcontinental Gas Pipe Line and South Carolina Pipeline Company.