Post Oak Energy Capital

Tiburon Oil & Gas was formed to pursue upstream development and is currently focused on "Lease and Drill" in the Utica Shale Basin.

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

Midway Energy Partners is an oil and gas operating company focused on the development of oil and gas properties.

Layne Water Midstream Holdings, LLC specializes in providing comprehensive water services to upstream oil and gas companies, primarily in the Delaware and Midland basins. Founded in 2016 and based in The Woodlands, Texas, the company focuses on water collection, recycling, and disposal, offering solutions that include produced water gathering, source water delivery, and water treatment. Layne Water Midstream operates significant infrastructure for water sourcing and management, underpinned by exclusive long-term contracts with key customers and landowners, including state organizations. This strategic positioning enables the company to support its clients effectively in their upstream operations and aims for further growth in the region.

Prime Downhole Manufacturing, LLC is an engineering company based in Houston, Texas, specializing in precision machining and fabrication for the oil, gas, and aerospace industries. Established in 2015, the company manufactures a range of products, including Torstar breakout machines, bucking units, bearings, PDC bits, and reamers. Additionally, Prime Downhole Manufacturing provides machine maintenance and calibration programs, offering both in-house and field repair services. By delivering contract machining and project management solutions, the company supports upstream oil and gas operations, helping clients address challenges and enhance their returns.

Saxet is an oil and gas company based in Houston, Texas, specializing in the acquisition and management of mineral and royalty interests across the United States. Comprised of experienced professionals from the exploration and production sector, Saxet leverages its extensive industry knowledge to identify and pursue strategic opportunities for growth. The company focuses on acquiring both working interests and mineral interests, generating exploration projects in multiple oil and gas basins. Through its targeted acquisitions, Saxet aims to enhance its portfolio while delivering exceptional service to its partners and stakeholders. This strategic approach positions Saxet for long-term growth in the energy sector.

Layne Water Midstream Holdings, LLC specializes in providing comprehensive water services to upstream oil and gas companies, primarily in the Delaware and Midland basins. Founded in 2016 and based in The Woodlands, Texas, the company focuses on water collection, recycling, and disposal, offering solutions that include produced water gathering, source water delivery, and water treatment. Layne Water Midstream operates significant infrastructure for water sourcing and management, underpinned by exclusive long-term contracts with key customers and landowners, including state organizations. This strategic positioning enables the company to support its clients effectively in their upstream operations and aims for further growth in the region.

Sierra Resources is a private oil and gas exploration and production company based in Houston, Texas. The company has significant experience in operating various onshore basins and has recently shifted its focus towards acquiring and developing unconventional oil and gas assets. Notably, Sierra Resources is actively engaged in the Eagle Ford Shale, where it aims to enhance its portfolio of reserves.

Nadel and Gussman is a fourth-generation, family-owned independent oil and gas production and exploration company based in Tulsa, Oklahoma, with a legacy spanning over 70 years. Founded by Isadore Nadel in the early 20th century, the company initially focused on shallow oil investments and has since expanded its operations across key basins in the United States, including the Mid-continent, ArkLaTex, and Permian regions. Nadel and Gussman is committed to ethical business practices and modern oil innovations, emphasizing environmentally safe exploration and production methods. The company specializes in both operated and non-operated opportunities, utilizing advanced horizontal drilling and completion technologies in both conventional and unconventional plays. The leadership team, which includes Stephen Heyman and Jim Adelson, continues to guide the company in its growth and development within the oil industry.

Moriah Henry Partners LLC is a Midland-based exploration and production company focused on the acquisition and development of oil and gas properties in the Midland Basin of West Texas. The Company is a collaboration among Post Oak Energy Capital, Henry Energy, LP and Moriah Energy Investments, LLC.

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.

Tri-C Resources Inc. is an oil and gas exploration and production company based in Houston, Texas, founded in 1985. The company focuses on the acquisition, development, and exploration of both domestic and foreign energy properties, particularly in the Texas Gulf Coast region. Tri-C Resources specializes in the drilling, completion, and production of oil and gas wells, utilizing advanced exploration technologies to enhance its operations. The company is primarily engaged in the development of unconventional assets, aiming to leverage its expertise to maximize resource extraction and efficiency.

Mavros Minerals is an oil and gas company focused on mineral energy assets. The company's focus lies in the acquisition of mineral and royalty interests and acting as local operators to source, analyze and execute on acquisition opportunities.

Mavros Minerals is an oil and gas company focused on mineral energy assets. The company's focus lies in the acquisition of mineral and royalty interests and acting as local operators to source, analyze and execute on acquisition opportunities.

Crown Oil Partners is an oil and gas company acquiring and managing various types of oil and natural gas properties. The company was founded in 2016 and is headquartered in Midland, TX.

Moriah Henry Partners LLC is a Midland-based exploration and production company focused on the acquisition and development of oil and gas properties in the Midland Basin of West Texas. The Company is a collaboration among Post Oak Energy Capital, Henry Energy, LP and Moriah Energy Investments, LLC.

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.

Rimrock Resource Operating is an oil and energy company focused on the development, acquisition, and exploration of the oil and gas industry. The company provides services including oil transportation, well site management, water transportation, crude oil marketing, contract pumping, service and repair, roustabout, and other small services. Rimrock Resource Operating was formed in 2015 in Tulsa, OK.

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 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.

Crown Oil Partners is an oil and gas company acquiring and managing various types of oil and natural gas properties. The company was founded in 2016 and is headquartered in Midland, TX.

CPX Piceance is a natural resource development company based in Houston, Texas, established in 2014. The company specializes in the exploration and operation of oil and gas assets, with a strong focus on long-lived resources in the Piceance Basin, Denver-Julesburg Basin, and East Texas. CPX Piceance maintains a substantial portfolio of non-operated oil and gas interests and aims to enhance the value of its energy assets through strategic development and acquisition of prospective acreage at favorable valuations. The company is dedicated to improving natural resource development within the energy sector.

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 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.

Refinery Specialties is an oilfield service company that specializes in formulating and manufacturing a range of customized specialty chemicals for the oil and gas industry. Their product offerings include surfactants, foaming agents, biocides, paraffin inhibitors, and emulsion breakers, which are essential for oilfield production and processing. In addition to manufacturing, the company provides technical support and comprehensive monthly monitoring and reporting to help clients optimize chemical usage, identify problem areas, and ensure proper dosing, ultimately justifying the costs associated with their chemical programs. Refinery Specialties serves various sectors, including production, pipeline, refinery, and gas plants, focusing on delivering cost-effective solutions tailored to meet industry needs.

Cornerstone Petroleum Resources, LLC is an exploration and production company based in Fort Worth, Texas, specializing in the drilling and development of oil-prone shale plays. The company actively engages in the development of shale oil resources through various approaches, including joint ventures, farm-ins, and organic leasing opportunities with existing acreage owners and operators. This focus allows Cornerstone to leverage expertise in horizontal drilling and hydraulic fracturing techniques, positioning itself to serve major oil companies effectively.

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.

Refinery Specialties is an oilfield service company that specializes in formulating and manufacturing a range of customized specialty chemicals for the oil and gas industry. Their product offerings include surfactants, foaming agents, biocides, paraffin inhibitors, and emulsion breakers, which are essential for oilfield production and processing. In addition to manufacturing, the company provides technical support and comprehensive monthly monitoring and reporting to help clients optimize chemical usage, identify problem areas, and ensure proper dosing, ultimately justifying the costs associated with their chemical programs. Refinery Specialties serves various sectors, including production, pipeline, refinery, and gas plants, focusing on delivering cost-effective solutions tailored to meet industry needs.

Bayou Well Services is a provider of oilfield services operating across the United States. The company specializes in pressure pumping, fluid logistics, and rental tools, offering a comprehensive range of services that includes workover, plug and abandonment, fluid management, hydraulic fracturing, well-servicing rigs, tank rentals, and fluid transfer. Through these services, Bayou Well Services supports various aspects of oil and gas production, ensuring efficient operations for its clients in the energy sector.

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.

Crown Oil Partners is an oil and gas company acquiring and managing various types of oil and natural gas properties. The company was founded in 2016 and is headquartered in Midland, TX.

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.

Black Oak Resources is an exploration and production company focused on oil and natural gas properties. The company pursued upstream acquisition and development opportunities in the Permain Basin and Mid-Continent areas. Black Oak Resources was formed in 2008 in Austin, TX.

RAM Energy Resources is an oil and gas company dedicated to the development and acquisition of oil and natural gas properties. Established in 1987, the company operates primarily in Texas, Louisiana, and Oklahoma, where it manages existing oil and gas assets while pursuing new acquisition opportunities. RAM Energy Resources is involved in both the exploration and development of conventional and non-conventional oil and gas assets, as well as the drilling of oil and natural gas wells.

Breitburn Energy Partners is an oil and gas company that explores and develops oil and gas producing properties. The company's current assets consist primarily of producing and non producing crude oil reserves located in the Los Angeles Basin in California, the Wind River and Big Horn Basins in central Wyoming, the Sunniland Trend in Florida, the Permian Basin in West Texas and Michigan. Breitburn’s goal is to provide unitholders with stable and growing cash distributions.

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.

EV Energy Partners is an oil and gas company that deals in the mining and drilling of oil & gas.

National Specialty Alloys is a processor and distributor of premium stainless steel and nickel alloy bars and shapes. The company specializes in nickel alloy products and maintains a diverse inventory to meet the specific demands of its customers. By focusing on high-quality materials, National Specialty Alloys serves a variety of industries that require specialized alloy solutions.

Balcones Energy is a development company designed to invest in the oilfield service and equipment sector with a particular focus on compression and artificial lift. The company's initial investment was in Precision Compression Services, which develops and produces compressor packages geared towards later life, low pressure, and/or low volume wells with an objective of lowering costs and improving well performance.

LINN Energy, based in Houston, Texas, is an independent oil and natural gas company that focuses on the acquisition, exploration, and development of unconventional reserves. The company holds interests in approximately 150,000 net acres in the Anadarko Basin, specifically within the Merge, SCOOP, and STACK plays. LINN Energy aims to maximize cash flow through a growing portfolio of long-life oil and natural gas assets, and it has established itself as a significant player in the U.S. energy sector with a substantial amount of proved reserves. Through its equity interest in Roan Resources LLC, LINN Energy continues to enhance its operations and asset profile in key producing basins across the United States.

SandRidge Energy, Inc. is an oil and natural gas company based in Oklahoma City, focused on the exploration, development, and production of crude oil, natural gas, and natural gas liquids. The company primarily operates in the Mid-Continent region and the North Park Basin of the United States, where it has a significant presence with over 1,000 net producing wells and approximately 511,000 net acres under lease. SandRidge Energy is known for its expertise in drilling low-risk, conventional oil wells, particularly in shallow carbonate reservoirs, and is a key developer of the Mississippian Oil Play. As of the end of 2019, the company reported total estimated proved reserves of approximately 89.9 million barrels of oil equivalent. SandRidge Energy has faced challenges, including a bankruptcy filing in May 2016, but continues to operate with a commitment to its business and community engagement.