Howard Liao

Lehman Brothers Holdings, Inc. engages in the provision of securities underwriting and investment services. The company is headquartered in New York, NY.

Medley LLC engages in asset management firm offering solutions to retail and institutional investors. It provides investment management services to permanent capital vehicles, long-dated private funds and separately managed accounts and serves as the general partner to the private funds. The company was founded by Brook B. Taube and Seth B. Taube in 2006 and is headquartered in New York, NY.

Varel International, Inc. manufactured drill bits for the global oil and gas drilling community. The company was founded by Dan Varel, Sr. in 1947 and was headquartered in Carrollton, TX.

DHS Drilling Co. provides oil and gas wells drilling services. It also offers oilfield and heavy haul trucking, and crane services. The company was founded in April 2005 and is headquartered in Casper, WY.

Greenbrier Minerals Holdings LLC operates coal mining. The company is headquartered in Lewisburg, West Virginia.

Castex Energy, Inc. provides oil and gas exploration and production services. It operates focused on exploration and development in South Louisiana and the Gulf of Mexico Shelf. The company was founded in 1987 and is headquartered in Houston, TX.

UniversalPegasus International, Inc. provides construction and engineering services. The company was founded in February 2008 and is headquartered in Houston, TX.