Randall Wade

TCW Asset Management Co. LLC (TCW) is a SEC-registered investment advisor headquartered in Los Angeles, California. The firm was founded in 1992 and is wholly-owned by The TCW Group, Inc. In 2013, TCW management and private investment funds affiliated with The Carlyle Group (NASDAQ: CG) acquired TCW Group from Société Générale. TCW provides investment management and advice for a wide array of investment strategies for institutional and individual investors through investment advisory accounts, private open- and closed-end commingled investment funds and structured investment vehicles such as collateralized debt obligations.

Alliance Holdings GP LP is in the partnership with Alliance Resource Partners, L.P., which engages in the production of of steam and metallurgical coal with varying sulfur and heat contents. The ARLP Partnership operates through the following geographical segments: Illinois Basin; Appalachia; and Other and Corporate. The company was founded in 2005 and is headquartered in Tulsa, OK.

Southcross Energy Partners LLC provided natural gas gathering, processing, treating, compression and transportation services, and natural gas liquids (NGL) fractionation and transportation services. It also sources, purchased, transported, and sold natural gas and NGL's to its power generation, industrial, and utility customers primarily under fixed-spread contracts. The company was founded in 2009 and is headquartered in Houston, TX.

NGL Crude Logistics LLC provides physical distribution, merchandising and trading services. The company was founded on April 24, 2002 and is headquartered in Houston, TX.

EIG Global Energy Partners LLC (EIG Global Energy Partners) is a private equity firm founded in 2011. The firm is headquartered in Washington, District of Columbia.

Part of NGL Energy Partners LP, NGL Energy Holdings LLC functions as an investment holding company. The company is based in Tulsa, OK. H. Michael Krimbill has been the CEO of the company since 2010.

Part of Targa Resources Corp., Southcross Energy Partners GP LLC is a company that provides natural gas transportation services. The company is based in Dallas, TX.