Post Oak Energy Capital

Ichthys Energy is an upstream oil and gas firm that focuses on aggregating and prudently developing its operated Permian Basin inventory.

Oryx Midstream Services, LLC is a midstream company based in Midland, Texas, that specializes in the development, acquisition, ownership, and operation of midstream assets in the Permian Basin. Established in 2013, the company provides a range of services, including crude oil gathering, handling, and transportation, as well as natural gas gathering, compression, treating, and processing. Oryx also facilitates the transportation of natural gas liquids. The company aims to be a strategic partner for oil and gas producers in the United States, offering tailored solutions to meet their business needs. By connecting its gathering and transportation systems to key market hubs, Oryx delivers efficient and cost-effective services, enhancing its clients' access to domestic refineries and the U.S. export market. With a team of experienced professionals, Oryx Midstream Services is dedicated to supporting the energy industry in the region.

Upcurve Energy LLC is an oil and gas company based in Houston, Texas, specializing in the exploitation of mature unconventional plays. Founded in 2015, the company focuses on acquiring acreage and existing wells, optimizing production through techniques such as recompletions and infill development. Upcurve Energy has extensive experience in key regions, including the Eagle Ford, Haynesville, Bakken, and Marcellus shale formations. The company pursues acquisitions of producing wells and acreage through cash purchases and drill and recompletion farm-ins, leveraging its expertise in horizontal completions and development in prolific shale areas to enhance production efficiency.

PetroEdge Energy IV, LLC is an oil and gas exploration company based in Houston, Texas, incorporated in 2014. The company specializes in the acquisition and development of natural gas and crude oil properties, with a particular emphasis on the Eagle Ford Shale in South Texas. PetroEdge Energy is committed to maintaining safe and environmentally responsible production practices while pursuing an aggressive acquisition and development strategy. Its focus includes building a robust inventory of opportunities in the Cretaceous Shelf Margin, allowing the company to enhance operational performance and recoverable reserves.

Double Eagle Energy Holdings (together with its affiliates and subsidiaries, “Double Eagle,”) principal business is crude oil and natural gas exploration, development and production through horizontal and vertical operations in the Midland Basin of West Texas. The company also focuses on acquiring oil and gas leases, working interest, mineral rights, and royalty interests throughout the Permian Basin. Double Eagle is one of the largest, if not the largest, organic acquirers of acreage in the Permian Basin in West Texas, and has historically been active across the United States in South Texas (Eagle Ford), the Mid-Continent (Mississippian, SCOOP, Penn Shales) and the Rockies (DJ Basin, Powder River Basin). Since forming Double Eagle in 2008, the Company has executed on over 10,000 individual lease transactions, totaling more than 1 million acres and more than $4.5 billion in transaction value. The company is headquartered in Fort Worth, Texas, with an additional office in Midland, Texas.

Oryx Midstream Services, LLC is a midstream company based in Midland, Texas, that specializes in the development, acquisition, ownership, and operation of midstream assets in the Permian Basin. Established in 2013, the company provides a range of services, including crude oil gathering, handling, and transportation, as well as natural gas gathering, compression, treating, and processing. Oryx also facilitates the transportation of natural gas liquids. The company aims to be a strategic partner for oil and gas producers in the United States, offering tailored solutions to meet their business needs. By connecting its gathering and transportation systems to key market hubs, Oryx delivers efficient and cost-effective services, enhancing its clients' access to domestic refineries and the U.S. export market. With a team of experienced professionals, Oryx Midstream Services is dedicated to supporting the energy industry in the region.

PetroEdge Energy IV, LLC is an oil and gas exploration company based in Houston, Texas, incorporated in 2014. The company specializes in the acquisition and development of natural gas and crude oil properties, with a particular emphasis on the Eagle Ford Shale in South Texas. PetroEdge Energy is committed to maintaining safe and environmentally responsible production practices while pursuing an aggressive acquisition and development strategy. Its focus includes building a robust inventory of opportunities in the Cretaceous Shelf Margin, allowing the company to enhance operational performance and recoverable reserves.

Maverick Brothers Energy produces and explores oil and natural gas properties. The company focused on the horizontal development of oil and natural gas properties located in western Oklahoma. Maverick Brothers will use proceeds from the investment to accelerate the development of its existing leasehold and to acquire additional oil and gas assets. It was founded in 1998 and is based in Enid, OK.

Core Appalachia is a privately held, independent producer and processor of natural gas in the Devonian region in Kentucky, Virginia and West Virginia. Headquartered in Charleston, West Virginia, Core’s 5,600 conventional wells are strategically positioned throughout 1.2 million acres of the southwestern Appalachian Basin to meet the growing regional demand for natural gas.

Richland-Stryker Generation is a power generation company that operates gas and oil-fired peaking power generation facilities. These facilities serve PJM, a regional transmission organization which coordinates the movement of electricity in all or parts of 13 Northeast and Midwestern states and the District of Columbia.

Chaparral Energy, Inc. is engaged in the acquisition, exploration, development, production, and operation of oil and natural gas properties, primarily in Oklahoma, United States. The company focuses on selling crude oil, natural gas, and natural gas liquids to refineries and gas processing plants. It holds approximately 210,000 net surface acres in the Mid-Continent region, with about 122,000 net acres located in the STACK play across Canadian, Kingfisher, and Garfield counties. As of December 31, 2019, Chaparral's estimated proved oil and natural gas reserves were 96.6 million barrels of crude oil equivalent, and it had interests in 2,782 gross producing wells, including 866 that are company-operated. Founded in 1988, the company is headquartered in Oklahoma City, Oklahoma.

Atlas Energy is a limited liability company based in Philadelphia, Pennsylvania, specializing in the development and production of natural gas and, to a lesser extent, crude oil. The company primarily operates in the Appalachian Basin, focusing on the extraction of natural gas and natural gas liquids. In addition to its production activities, Atlas Energy sponsors and manages tax-advantaged investment partnerships, utilizing these investments to finance the exploration and development of its acreage.