David A. Fitch

MarkWest Energy Partners LP engages in the business of gathering, processing and transportation of natural gas; the transportation, fractionation, storage and marketing of natural gas liquids; and the gathering and transportation of crude oil. It operates through four segments: Marcellus, Utica, Northeast and Southwest. The Southwest segment includes the operations of processing facilities in Corpus Christi, Texas. The Northeast segment assets include the Kenova, Boldman, Cobb, Kermit and the Langley natural gas processing complexes, NGL pipeline and Siloam NGL fractionation facility. The Marcellus segment includes gathering, processing and fractionation infrastructure in the liquids-rich area of the Marcellus Shale The Utica segment provides fractionation services. The company was founded in January 2002 and is headquartered in Denver, CO.

Trillium Energy Partners LLC engages in the provision of innovative midstream solutions. The company was founded by Christopher Akers, David Fitch, Brett Nixon, and Gabe Scott in October 2019 and is headquartered in The Woodlands, TX.

Part of H.I.G. Capital LLC, Northern Biogas LLC is a waste-to-renewable natural gas company based in Morgantown, WV. The private company designs, builds, owns, operates, services, and maintains anaerobic digesters and renewable natural gas facilities across the country. Northern Biogas has decades of experience in developing and operating sustainable clean energy solutions for its farm and industry partners. The company is a renewable natural gas (RNG) producer and services provider, offering funding, development, digesters, pipelines, engineering, construction, plant operations & maintenance, and field services. The CEO of the company is Christopher Akers. Northern Biogas is fully funded by H.I.G. Capital and was acquired by the private equity firm on September 20, 2022.