Penn Natural Resources LLC was formed by the principals of Texas Independent Exploration, Ltd. to acquire and develop Marcellus leaseholds in Pennsylvania.

Campbell Oil & Gas, Inc. (COG) is an oil and gas operator in Pennsylvania. COG is contracted by Penn Natural Resources and by XPR Resources to operate their producing properties.

XPR Resources LLC (XPR), former WPX Energy Appalachia, LLC, is a privately funded natural gas exploration and production company. Together, with Penn Natural Resources, XPR Resources holds over 50,000 acres of Marcellus gas rights in Southwest Pennsylvania.

RW Gathering LLC (RWG) operates natural gas gathering systems in Derry Township, Westmoreland County; Cooper Township, Clearfield County; and Snowshoe Township, Centre County. RWG’s pipelines collect natural gas from wells and transports it to compressor stations where it is processed and delivered to downstream pipelines. XPR Resources is the managing partner for RW Gathering.