Korea Gas Corporation (Kogas) - Importer and distributor of natural gas, supplying power generation plants, gas utility companies, and city gas companies. [Korean/English] - http://www.kogas.or.kr/
SK Global Energy Sales Group - Sells petroleum products including gasoline, diesel, kerosene LPG, and various by-products such as lubricants and asphalt, as well as fuel and service vessels at sea. - http://www.skes.com/