CONSOL expects to utilize transaction proceeds in order to pay down debt. The transaction is expected to close in the first quarter of 2016.

The transaction is not subject to a financing condition and is being funded by Energy and Minerals Group (EMG), which is the management company for a series of specialized private equity funds. EMG has approximately $16.5 billion of regulatory assets under management, CONSOL CEO Nicholas J. DeIuliis said.

“This is another significant event in the execution of CONSOL Energy's strategy, as well as a meaningful step in continuing to strengthen our balance sheet,” he said.

“The Buchanan Mine fits into Coronado's portfolio as a pure play metallurgical coal producer, and, in the end, this transaction bolsters the strategic position of both companies.”

Also included in the transaction are CONSOL Energy's idled Amonate Mine in southern West Virginia and southwestern Virginia, its greenfield Russell County coal reserves in southwestern Virginia and its greenfield Pangburn-Shaner-Fallowfield coal reserves in southwestern Pennsylvania.

The transaction includes approximately 400 million tons of proved coal reserves which includes approximately 88Mt associated with the Buchanan mine.

The transaction does not include any gas rights, and CONSOL will retain the right to extract and sell gas at the mines and other properties.