Post Oak Energy Capital

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

Ichthys Energy is an upstream oil and gas company specializing in the aggregation and responsible development of its operated Permian Basin portfolio. The company employs a strategic approach, focusing on both operated and non-operated acquisitions, to drive significant returns in the Permian region.

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, 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, 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 specializes in the exploration and production of oil and natural gas properties, primarily focusing on horizontal development in western Oklahoma. Founded in 1998 and headquartered in Enid, Oklahoma, the company aims to enhance its existing leasehold through investment proceeds while also pursuing the acquisition of additional oil and gas assets. Maverick Brothers Energy is dedicated to the strategic management and development of its producing properties, positioning itself as a significant player in the energy sector.

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 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 in the United States. The company's primary operations include interests 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 partnership qualifying energy-related businesses and assets.