Mountain Valley Pipeline wants to build a new natural gas pipeline in the Southeast. But Williams Cos. says its planned pipeline is all that’s needed.

Carolina Gas Transmission, a subsidiary of Berkshire Hathaway, provides natural gas transportation services to South Carolina and southeast Georgia. With offices in Columbia, it owns and operates ...

A South Carolina pipeline owner is asking why an out-of-state rival will pump natural gas to a new power plant Santee Cooper and Dominion Energy plan to build.