Frank Albert Pici

Ranger Oil Corp. is an independent oil and gas company, which engages in the exploration, development, and production of crude oil, natural gas liquids, and natural gas. It focuses on its Eagle Ford Shale project located in South Texas. The company was founded in 1882 and is headquartered in Houston, TX.

Mariner Energy, Inc. explored and produces oil and natural gas. It operated in four principal areas: Permian Basin, Gulf Coast, Gulf of Mexico Deepwater and Gulf of Mexico Shelf. The company was founded in August 1983 and is headquartered in Houston, TX.

PVR Partners LP engaged in the gathering and processing of natural gas and the management of coal and natural resource properties in the United States. It operates through three business segments: Eastern Midstream, Midcontinent Midstream and Coal & Natural Resource Management. The Eastern Midstream segment is engaged in providing natural gas gathering, and other related services in Pennsylvania and West Virginia. The Midcontinent Midstream segment is engaged in providing natural gas processing, gathering services, and other related services. These processing and gathering systems are located primarily in Oklahoma and Texas. The Coal & Natural Resource Management segment involves in the management and leasing of coal properties and the subsequent collection of royalties. It also involves in other land management activities, such as selling standing timber, leasing coal-related infrastructure facilities and collecting oil and gas royalties. The company was founded in July 2001 and is headquartered in Radnor, PA.

Penn Virginia GP Holdings LP manages coal mines and natural gas facilities. The company was founded in June 2006 and is headquartered in Radnor, PA.