Duke R. Ligon

TransMontaigne GP LLC provides management consulting services. The firm is also engaged in petroleum fuels logistics services. The company was founded on May 19, 2005 and is headquartered in Denver, CO.

Vantage Energy Services, Inc. operates as a blank check company. It acquires through a merger, capital stock exchange, exchangeable share transaction, and other similar business combination in the oilfield services industry. The company is headquartered in Houston, TX.

American Battlefield Trust operates as a heritage land protection organization. It also engages in the preservation of the history of American Civil War battlefields. It provides the Hallowed Ground quarterly membership magazine, classroom resources, special events, battlefield interpretation, and landscape restoration and upkeep. The company was founded in 1999 and is headquartered in Washington, DC.

BlueKnight Energy Partners LP engages in the operation of independent asphalt facilities. It provides integrated terminalling services for companies engaged in the production, distribution, and handling of liquid asphalt. The company was founded on February 22, 2007 and is headquartered in Tulsa, OK.

Part of Vitol Holding II SA, SemGroup Energy Partners GP LLC operates crude oil assets. The company is based in Tulsa, OK. SemGroup Energy Partners GP was acquired by Vitol, Inc. from SemGroup LP on November 24, 2009.

Steelpath Energy Infrastructure Investment Co. is a closed-end, non-diversified management investment company. The company's investment objective is to generate a high level of current income, with a focus on capital preservation and inflationary growth primarily through debt and equity investments. The trust was founded in August 2010 and is headquartered in Dallas, TX.

System One, Inc. operates as Commercial banking. The company is headquartered in Columbus, OH.

Heritage Transfer Agency, Inc. is a transfer agency company. It provides investor and shareholder services. The company is headquartered in Toronto, Canada

Mayer Brown LLP provides legal services in areas of banking & finance, corporate & securities, litigation & dispute resolution antitrust & competition, US supreme court & appellate matters, employment & benefits, environmental, financial services regulatory & enforcement, government & global trade, intellectual property, real estate, tax, restructuring, bankruptcy & insolvency and wealth management. The company was founded in 1881 and is headquartered in Chicago, IL.

Quest Midstream Partners LP operates a gas gathering system and transportation pipelines in Cherokee Basin located in 15 counties of southeastern Kansas and northeastern Oklahoma. The company's pipeline network provides connections to both intrastate and interstate delivery pipelines. It was founded in December 2006 and is headquartered in Oklahoma City, OK.

Oklahoma Hall of Fame, Inc. engages in providing education services. The company was founded by Anna B. Korn in1927 and is headquartered in Oklahoma City, OK.

Security State Bank of Oklahoma operates as a state chartered commercial bank. It provides personal checking and savings accounts, certificate of deposit, personal borrowing, business and agriculture loans and checking accounts, and mortgage financing. The company is headquartered in Wewoka, OK.

Voyager Oil & Gas, Inc. engages in the exploration, development, and production of oil and gas. The company also engaged in the business of acquiring acreage in prospective natural resource plays primarily within the Williston Basin located in Montana and North Dakota. It seeks to accumulate acreage blocks on a non-operated basis and build net asset value via the production of hydrocarbons in repeatable and scalable opportunities. The company was founded by Steven Lipscomb in March 2002 and is headquartered in Billings, MT.

Part of Blueknight GP Holding LLC, Blueknight Energy Partners GP LLC is a company that provides transportation services. The company is based in Tulsa, OK.

Mekusukey Oil Co. LLC is a private company based in Wewoka, OK that was founded in 1970 by Duke R. Ligon. The company is one of the largest private mineral owners in the area and focuses on acquiring and managing perpetual mineral interests, rather than selling them.

National Oil Production Co LLC engages in the exploration and production of oil and gas wells. The company was founded in March 2002 and is headquartered in Fort Worth, TX.

Orion California LP engages in oil and gas production. The private company is based in California.

Cavaloz Holdings, Inc. functions as an investment holding private company. The company is based in Wilmington, DE.

Pardus Oil & Gas LLC engages in the acquisition, exploration, and development of onshore oil and gas assets. Its operational focus areas include the Buda, Georgetown, Edwards and Glen Rose in the East Texas Basin; and the Eaglebine in the East Texas Basin with exploration and development activities focused on the Woodbine Sandstone, Eagle Ford Shale and other stacked formations. The company is headquartered in Fort Worth, TX.

New Emerald Energy LLC engages in drilling oil and gas wells. The company is based in Denver, CO and has subsidiaries in Australia and the United States. The company was founded by James Russell Reger.