Frederick Dwyer

EV Management LLC develops and explores oil and gas. The private company is based in Houston, TX. The CEOs of the company are Mark A. Houser, Michael E. Mercer.

EV Energy Partners LP operates as a master limited partnership, which engages in the acquisition, development and production of oil and natural gas properties and all of the company operations are located in the United States. Its current properties are located in the Barnett Shale, the Appalachian Basin, the San Juan Basin, Michigan, Central Texas, the Mid-Continent areas in Oklahoma, Texas, Arkansas, Kansas and Louisiana, the Monroe Field in Northern Louisiana and the Permian Basin. The company was founded in April 2006 and is headquartered in Houston, TX.

EnerVest Ltd. (EnerVest) is a private equity firm founded in 1992 by John B. Walker and Jon Rex Jones. The firm is headquartered in Houston, Texas.

KCS Energy, Inc. was an independent energy company which used to engage in the acquisition, exploration, development and production of natural gas and crude oil with operations in the Mid-Continent and Gulf Coast regions. It used to purchase reserves through its Volumetric Production Payments (VPP) program. The company was founded in 1988 and was headquartered in Houston, TX.