CONSOL Energy Inc is a Canonsburg-based producer and exporter of high-BTU bituminous thermal coal. It owns and operates longwall mining operations in the nation and export terminals on the Eastern seaboard. The principal activity involves mining, preparation, and marketing of thermal coal, sold primarily to power generators. It also includes selling, general and administrative activities. It has its operations in Pennsylvania Mining Complex, Marine Terminal, and others.CONSOL Energy Inc is a Canonsburg-based producer and exporter of high-BTU bituminous thermal coal. It owns and operates longwall mining operations in the nation and export terminals on the Eastern seaboard.