Sui Southern Gas Company was originally established as Sui Gas Transmission Company (SGTC) in 1954 to purchase natural gas from
Pakistan Petroleum, which had discovered
natural gas in
Sui, Balochistan in 1952. It was responsible for transporting gas to
Karachi and other intermediate markets via pipeline. By September 1955, the pipeline was operational, distributing gas to consumers. In March 1989, Sui Gas Transmission Company, Karachi Gas Company, and Indus Gas Company were merged to form the Sui Southern Gas Company. ==Subsidiaries==