Richard A. Robert

Alpha Appalachia Holdings, Inc. produces, processes and sells bituminous coal of steam and metallurgical grades of a low-sulfur content through its various processing and shipping centers. The company also owns and operates approximately various wells, various miles of gathering line, and various small compression facilities in Appalachian Basin. It distributes its products through freight and terminal agreements with various providers, including railroads, barge lines, ocean-going vessels, bulk motor carriers, and terminal facilities. The company produces coal using four mining methods: underground room and pillar, underground longwall, surface and highwall mining. It was founded in 1920 and is headquartered in Abingdon, VA.

Eagle Rock Energy Partners LP engages in the exploitation, development, and production of oil and natural gas properties. It provides ancillary gathering, compressing, treating, processing, and providing marketing services to its production of natural gas, natural gas liquids, condensate, and crude oil. The company was founded on May 25, 2006 and is headquartered in Houston, TX.

Part of Grizzly Energy LLC, Eagle Rock Energy G & P LLC is a company based in Houston, TX. Scott W. Smith has been the CEO of the company since 2015.

Part of Grizzly Energy LLC, Eagle Rock Energy GP LP is an American company. Scott W. Smith has been the CEO of the company since 2015.

Vanguard Natural Resources LLC is an oil and natural gas exploration company, which focuses on the acquisition and development of mature long-lived natural gas and oil properties. Its properties are located in the Appalachian Basin in Kentucky and Tennessee; the Permian Basin in West Texas and New Mexico; and the Big Horn Basin in Wyoming and Montana. The company was founded in October 2006 and is headquartered in Houston, TX.

Encore Energy Partners LP acquires and develops existing oil and natural gas properties. The firm operates through one business segment, the oil and natural gas exploration and production industry in the United States. The company was founded on February 13, 2007 and is headquartered in Houston, TX.