Post Oak Energy Capital

Tiburon Oil & Gas Partners, based in Houston, Texas, is an energy exploration and production company. It specializes in the responsible development of upstream oil and gas assets, with a current focus on "Lease and Drill" operations in the Utica Shale Basin. The company aims to deliver energy solutions that meet client needs, leveraging innovative practices and sustainable strategies.

Midway Energy Partners is an oil and gas operating company based in Midland, Texas. It specializes in the development and operation of oil and gas properties, primarily focusing on the extraction of crude oil and natural gas.

Oryx Midstream Services, LLC is a midstream company headquartered in Midland, Texas, focused on developing, acquiring, owning, and operating midstream assets primarily in the Permian Basin region. Founded in 2013, the company provides a comprehensive suite of midstream services, including natural gas gathering, compression, treating, and processing, as well as crude oil gathering, handling, and transportation. Oryx also manages natural gas liquids transportation, connecting oil and gas producers to key market hubs for delivery to domestic refineries and the U.S. export market. With a leadership team that boasts over 145 years of combined experience in the energy sector, Oryx Midstream Services aims to be a strategic partner for its clients, offering customized solutions to meet their specific business needs while ensuring efficient and cost-effective operations.

UpCurve Energy LLC is an oil and gas company based in Houston, Texas, established in 2015. The company specializes in the exploitation of mature unconventional plays, with a particular focus on the Eagle Ford, Haynesville, Bakken, and Marcellus shale formations. UpCurve Energy is engaged in the acquisition of acreage and existing wells, optimizing production through various methods, including recompletions, new development, and infill drilling. The company employs cash purchases and farm-in agreements to pursue its acquisition strategy, aiming to enhance production in prolific shale formations, particularly through horizontal completions and refracturing techniques.

PetroEdge Energy IV, LLC, established in 2014 and headquartered in Houston, Texas, is an independent oil and gas exploration company. Its primary business involves the acquisition, exploration, and exploitation of unconventional natural gas and crude oil properties, with a focus on the Eagle Ford Shale in South Texas. The company is committed to safe and environmentally responsible production methods.

Double Eagle Development is engaged in the exploration, development, and production of crude oil and natural gas, primarily operating through horizontal and vertical methods in the Midland Basin of West Texas. Founded in 2008 and headquartered in Fort Worth, Texas, with an additional office in Midland, the company is recognized as one of the largest organic acquirers of acreage in the Permian Basin. Double Eagle focuses on acquiring oil and gas leases, working interests, mineral rights, and royalty interests, and has conducted over 10,000 lease transactions, encompassing more than 1 million acres and exceeding $4.5 billion in transaction value. The company has also been active in other regions across the United States, including South Texas, the Mid-Continent, and the Rockies, thereby establishing a significant presence in the oil and gas sector.

Oryx Midstream Services, LLC is a midstream company headquartered in Midland, Texas, focused on developing, acquiring, owning, and operating midstream assets primarily in the Permian Basin region. Founded in 2013, the company provides a comprehensive suite of midstream services, including natural gas gathering, compression, treating, and processing, as well as crude oil gathering, handling, and transportation. Oryx also manages natural gas liquids transportation, connecting oil and gas producers to key market hubs for delivery to domestic refineries and the U.S. export market. With a leadership team that boasts over 145 years of combined experience in the energy sector, Oryx Midstream Services aims to be a strategic partner for its clients, offering customized solutions to meet their specific business needs while ensuring efficient and cost-effective operations.

PetroEdge Energy IV, LLC, established in 2014 and headquartered in Houston, Texas, is an independent oil and gas exploration company. Its primary business involves the acquisition, exploration, and exploitation of unconventional natural gas and crude oil properties, with a focus on the Eagle Ford Shale in South Texas. The company is committed to safe and environmentally responsible production methods.

Maverick Brothers Energy is an oil and natural gas exploration and production company based in Enid, Oklahoma. Founded in 1998, the company specializes in the horizontal development of oil and natural gas resources, primarily in western Oklahoma. Maverick Brothers Energy is engaged in the acquisition, development, and management of producing oil and gas properties. The company aims to enhance its existing leasehold and expand its portfolio by acquiring additional oil and gas assets.

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 an oil and gas company based in Oklahoma City, Oklahoma, focusing on the acquisition, exploration, development, production, and operation of oil and natural gas properties in the United States, primarily in Oklahoma. It operates across approximately 210,000 net surface acres, with a significant portion—about 122,000 net acres—located in the STACK play within Canadian, Kingfisher, and Garfield counties. The company sells crude oil, natural gas, and natural gas liquids mainly to refineries and gas processing plants. As of the end of 2019, Chaparral Energy reported estimated proved reserves of approximately 96.6 million barrels of crude oil equivalent and held interests in 2,782 gross producing wells, with 866 of those being company-operated. Founded in 1988, the company has positioned itself as a key player in the oil and gas sector in the Mid-Continent region.

Atlas Energy Group, LLC, established in 2011 and headquartered in Fort Worth, Texas, is engaged in the development and production of natural gas, crude oil, and natural gas liquids. The company's primary operations are in the Eagle Ford Shale in southern Texas, the Marble Falls play in the Fort Worth Basin in northern Texas, and the Mississippi Lime play in northwestern Oklahoma. Additionally, Atlas Energy invests in master limited partnerships and qualifying energy-related businesses and assets.