Michael E. Humphrey

Barrow, Hanley, Mewhinney & Strauss LLC, dba Barrow Hanley Global Investors (Barrow Hanley), is a SEC-registered investment advisor headquartered in Dallas, Texas. The firm was founded by Michael C. Mewhinney in 1979. They are a subsidiary of Perpetual US Holding Co., Inc., ultimately held by Perpetual Ltd. (ASX: PPT) in Australia. The firm provides US and global equity and fixed income management strategies to institutional investors, mutual funds, and other clients. Barrow Hanley is a signatory to the United Nations' Principles for Responsible Investment (UN PRI).

Part of TechnipFMC plc, Moorco International, Inc. develops fluid measurement products. The company is based in Houston, TX.

Seitel, Inc. engages in the provision of seismic data and geophysical services. Its seismic data library includes both onshore and offshore three-dimensional and two-dimensional data and offshore multi-component data. The company was founded in 1982 and is headquartered in Houston, TX.

Part of Occidental Petroleum Corp., Union Pacific Resources, Inc. is a company that is involved in railroads, gas, and oil production. The company is based in Bethlehem, PA.

Goldman Sachs Asset Management LP (GSAMLP) is a SEC-registered investment advisor headquartered in New York City. The firm is a wholly owned subsidiary of GSAM Holdings LLC, and their ultimate parent is Goldman Sachs Group, Inc. (NYSE: GS). Founded in 1988, GSAMLP provides investment solutions to a range of individual and institutional investors worldwide.

Exterran Energy Solutions LP engages in natural gas compression operations. It also provides sales, operations, maintenance, fabrication, service and transportation applications. The company was founded in 1990 and is headquartered in Houston, TX.

Southern Methodist University is a private university near the center of Dallas, SMU offers undergraduate, graduate, and professional programs through seven schools in the humanities and sciences, business, the performing, visual, and communication arts, engineering, education and human development, law, and theology.

Harvard University engages in the provision of teaching and research. It has twelve degree-granting Schools in addition to the Radcliffe Institute for Advanced Study, offering a global education. The university was founded in 1636 and is headquartered in Cambridge, MA.

Accenture LLP provides management consulting, technology, and outsourcing services. Its services encompass customer relationship, finance, human resources, service, supply chain, information management, business process, and infrastructure outsourcing services. The company was founded in 1989 and is headquartered in Chicago, IL.

Goldman Sachs & Co. LLC (GS&Co.) is a securities brokerage firm headquartered in New York City. Founded in 1927, the firm is a subsidiary of The Goldman Sachs Group, Inc. (NYSE: GS). GS&Co. provides services to help hedge funds manage risk, monitor portfolios, maintain liquidity and build their businesses. They offer clients access to global equity and derivatives markets, as well as foreign exchange, commodities, European Lefts, rates and credit across the Americas, Europe and Asia. The firm proactively monitors capital markets, searching for pockets of liquidity and news that may require changes to those strategies. Integration with the Goldman Sachs network gives clients access to the firm's sectored block trades and their insights into price discovery. Their electronic trading program provides clients with tools to manage their trades from pre-trade analytics to post-trade analysis.

University of Houston System offers higher education degrees and job training or vocational study programs. It offers about 280 undergraduate and graduate degree programs in fields such as business, education, humanities and law. It was founded in 1927 and is headquartered in Houston, TX.

Corphealth, Inc. provides medical-behavioral care management services. Its services include data warehousing & analytics, health coaching, integrated & primary disease management, employee assistance programs, and pharmacy medication management. The company was founded in 1989 and is headquartered in Fort Worth, TX.

Main Street Capital Partners LLC(Main Street Capital Partners) is a private equity firm founded in 1990 by Vincent Foster. The firm is headquartered at Houston, Texas.

AFGlobal Corp. manufactures engineered products, subassemblies and integrated systems. Its products include drilling risers and gas turbine components, such as manifolds, skids, plets, plems, BOP assemblies and buoyancy modules and individual parts such as precision machined and fabricated products. It serves the oil & gas, petrochemical & refining, power generation, industrial and aerospace markets. The firm has locations in Brazil, Canada, China, the United Kingdom, and the United States of America. The company was founded in 1996 and is headquartered in Houston, TX.

Part of Exxon Mobil Corp., Encore Energy Partners GP LLC is a company based in Dallas, TX. Scott W. Smith has been the CEO of the company since 2010.

Price Gregory Services is a leading provider of infrastructure services with focus on pipeline construction and related services. The Company was formed through the merger of H.C. Price and Gregory & Cook Construction, two of the largest contractors with the equipment and capability to build large diameter pipelines. The Company's history stretches to the beginning of oil pipeline construction industry, with predecessor companies involved in the construction of the first 'Big Inch' pipeline during World War II. In addition, the Company has worked internationally in the Middle East, Africa, and Mexico. Price Gregory is currently focused in North America with a presence in the Lower 48, Canada, and Alaska (including the North Slope).

Select Energy Services LLC operates as an oil and gas service company. The firm offers water solutions and environmental, well completions & intervention and facilities construction & engineering services. The company was founded in 2008 and is headquartered in Houston, TX.

RSH Energy LLC provides land, survey, inspection, multidiscipline professional engineering and integrity management services. The firm offers its solutions for renewable energy industry, the civil and commercial engineering sector and across the oil and gas/midstream forum. The company was founded in 2013 by Brian K. Murphy and is headquartered in Houston, TX.

Part of CNX Resources Corp., CNX Midstream GP LLC provides investment services. The company is based in Canonsburg, PA. Nicholas J. DeIuliis has been the CEO of the company since 2018.

Part of CSI Compressco LP, CSI Compressco GP LLC provides compression services and equipment for natural gas and oil production, gathering, transportation, processing, and storage. The company is based in Santa Fe, NM. The company offers gas processing mechanical refrigeration units that use a chilled medium to condense natural gas liquids from the process gas stream. The company also provides an electric compression solution, the VJack Compression Package, which is more environmentally friendly than their GasJack. The CEO of the company is John Earl Jackson.