• Economic Club of Oklahoma - Coordinating Presentations by Influencers

      Oklahoma City-based executive Duke Ligon has held leadership roles in the oil and gas industry for more than 35 years. A member of several boards of directors, including that of the Independent Petroleum Association of America, Duke Ligon is past president of the Economic Club of Oklahoma (ECoO).

    With a history going back six decades, ECoO brings together top thinkers and influencers to discuss issues relevant to society and to the current local and global economy. A valued aspect of the organization is the annual $2,000 scholarships it provides to students at eight universities who are pursuing studies in finance and economics.

    ECoO’s invited speakers have included the heads of major financial firms, as well as oil investment and exploration companies. One recent presenter leads the technology consulting firm Future Point of View, which incorporates Humalogy, a framework that emphasizes an optimal balance between human activities and technology. Another recent presenter serves as provost of the University of Oklahoma Health Sciences Center, which stands as a statewide leader in clinical, research, and health education activities.

  • Oklahoma Heritage Association - Preserving the History of the State

      Duke Ligon is a well-established presence in the Oklahoma City business community, who has held leadership positions spanning finance, oil and gas, and the law. Duke Ligon maintains an active community commitment and is a lifetime member of the Oklahoma Historical Society and a board member of the Oklahoma Heritage Association

    With the motto “collect, preserve, share,” the Oklahoma Heritage Association was established in 1927, along with the Oklahoma Hall of Fame. Since 1970, the organization’s permanent headquarters has been the former mansion of the Hefner family, which contains donated antiques, as well as noteworthy bell and cane collections. 

    One of the distinct assets of the Oklahoma Heritage Association is its extensive library and database of newspapers, maps, photos, and other historical documents. In addition, the Association maintains genealogical information and records of marriage and divorce spanning the history of the state and territory. Extensive biographical files help people today to learn more about their ancestors and foster an appreciation of their contributions to the development and growth of Oklahoma.

  • Duke Ligon - Board of SemGroup Energy Partners

      A respected presence in the Oklahoma City business community, Duke Ligon serves on the board of a number of energy industry companies, from Panhandle Oil and Gas, Inc., to Blueknight Energy Partners, LP. In 2008 Duke Ligon joined midstream energy asset owner and operator SemGroup Energy Partners, LP, as an independent director of the board. In 2009 he was elected chairman. 

    At the time of the appointment, SemGroup’s chief executive officer described being grateful for the outgoing chairman’s guidance through a challenging time. This enabled the firm to grasp new opportunities and maintain positive momentum. He welcomed Mr. Ligon by noting that he had the breadth of industry experience required to keep the business on a footing of “continued progress.”

    What is now known as SemGroup Corporation continued to have a vital role in crude oil operations until recently. In late 2016, the company announced a partnership with NGL Energy Partners, LP, for the construction of a pipeline extension that would add 44 miles to the Glass Mountain Pipeline system. As part of an aggressive capital raise program, the firm subsequently sold its 50 percent Glass Mountain Pipeline, LLC, share for $300 million.

  • Duke Ligon Welcomed into Peter J. Solomon Senior Advisory Position


  • Bronze Star - One of the Highest Medals Awarded for Bravery


  • Duke Ligon Appointed Senior Advisor to PJSC Energy Practice in Texas

    Based in Oklahoma City, Duke Ligon is a longtime leader in the energy sector with almost 50 years of experience and a history of developing energy policies and programs in connection with multiple organizations. The principal owner of Mekusukey Oil Company in Oklahoma, Duke Ligon was recently appointed to the role of senior advisor for Peter J. Solomon Company’s (PJSC) Houston-based Energy Advisory Group. 

    PJSC’s Energy Advisory Group, which was created in May 2016, represents the company’s expansion of services into the energy sector and aims to capitalize on increasing market activities. The group will focus on providing investment banking advisory services to private and public clients across the energy sector.

    The group’s inception coincided with the finalization of a partnership with the French financial services firm Natixis, which occurred a month later. According to PJSC’s founder and chairman Peter J. Solomon, the Energy Advisory Group would see significant benefits from the integration of Natixis’ position in the energy sector and PJSC’s advisory offerings.

    Please see the full press release at

  • Oklahoma’s New Bison License Plate Helps Conservation Charity

      Oklahoma City energy company executive Duke Ligon founded Mekusukey Oil Company, LLC, nearly 50 years ago and continues to direct its operations. In addition, Duke Ligon dedicates his time to serve as a board member for a range of other oil and natural gas concerns, including Blueknight Energy Partners and Panhandle Oil and Gas. 

    Mr. Ligon’s philanthropic contributions include board memberships with groups such as the Oklahoma branch of The Nature Conservancy, an organization that devotes its efforts to preserving and sustaining a variety of natural habitats and wilderness areas. In 2016, the group announced its promotion of a new customized Oklahoma state automobile license plate with a majestic depiction of a bison. 

    Supporters were placing orders for the plates from November 2016 through the summer of 2017. Sales will support The Nature Conservancy’s work in Oklahoma, a state known for the large herds of bison that once roamed its plains. A portion of the price will continue to benefit The Nature Conservancy each time a license plate holder submits an annual renewal.

  • Campaign 1776 Working to Preserve National Revolutionary Battlegrounds

    Oil and gas industry executive and philanthropist Duke Ligon supports a variety of charitable causes in the Oklahoma City community and throughout the country. He is an active supporter of such groups as the Civil War Trust, the Metropolitan Museum of Art, and the Nature Conservancy. Thanks to Duke Ligon and other members of its board of directors, the Civil War Trust has expanded its capacities to acquire historically significant battlegrounds and offer informative and educational programming. 

    Among its important subsidiary efforts, the Civil War Trust leads a project called Campaign 1776. This program works to preserve battlefields associated with the Revolutionary War and the War of 1812. In tribute to those who gave their lives in the service of their country, the trust hopes to ensure continued access to these sites for succeeding generations and to continue to preserve these events for the sake of public education.

    The Civil War Trust’s involvement in the preservation of Revolutionary War-era battlefields came about only a few years ago, when National Park Service officials approached the organization’s leadership with information about the lands’ risk of being eradicated. In partnership with members and historians, the trust got to work to expand its mission and its funding. 

    Among the trust’s educational materials associated with Campaign 1776 is a series of video maps with historic narration, available to the public on its website.

  • Civil War Trust Saves Fort Ann Battlefield from Mine Construction

      Based in Oklahoma City, Mekusukey Oil Company founder and owner Duke Ligon is an experienced attorney and businessman who serves as a member of the boards of Blueknight Energy Partners and Heritage Trust Company. Outside of his advisory positions with public and closely held firms, Duke Ligon also serves on the boards of directors for several nonprofit organizations, including the Civil War Trust.

    According to a recent article published by the Times Union, the Civil War Trust has announced its intention to preserve the site of the Battle of Fort Ann, a parcel of 160 acres in eastern New York. The battle took place just over a year after the signing of the Declaration of Independence, and delayed British General John Burgoyne and his troops long enough to tilt the outcome of the famed Battle of Saratoga in the Americans’ favor three months afterward.

    The Civil War Trust bought Fort Ann from a private owner, protecting it from the construction of a proposed granite and topsoil mine. It was purchased along with another battle site to the north near Sackets Harbor for a total of $1.01 million.

  • Heritage Trust's 2015 Merger with Argent


    Oklahoma City resident Duke Ligon founded Mekusukey Oil Company, where he serves as owner, manager, and attorney. Outside of his professional responsibilities, Duke Ligon maintains involvement with Heritage Trust Company as a board member.

    Founded by a group of trust officers and customers, Heritage Trust is a privately owned independent trust bank. It was established to provide an alternative to high-end bank trust departments. The company is focused on providing fiduciary services as well as personalized wealth management and counsel for clients in various industries, including oil and gas management, real estate management, and investment management. 

    Following its merger with Argent Financial Group in 2015, the company now is the largest privately held trust-based wealth management firm in the South. With 24 offices in 12 states, including locations in Oklahoma City and Ponca City, Oklahoma, it serves both US and international clients.