JACKSON JOHN EARL

About JACKSON JOHN EARL

John Earl Jackson is a U.S. business executive with a long career in energy and industrial services, built around operational leadership, public-company governance, and transaction experience. His most notable current and recent role is President and Chief Executive Officer of CSI Compressco LP, a company focused on compression services and equipment for natural gas and oil production, gathering, transportation, processing, and storage. Company filings show him in that role during the strategic transactions announced in 2023 and 2024. ([mainstcapital.com](https://www.mainstcapital.com/investors/sec-filings/proxy-filings/content/0001558370-22-003997/0001558370-22-003997.pdf)) Before CSI Compressco, Mr. Jackson served as President and Chief Executive Officer of Spartan Energy Partners, which acquired the general partner of CSI Compressco in January 2021 and later became part of the CSI Compressco structure through a restructuring transaction in November 2021. He also served as Chairman, Chief Executive Officer, and President of Price Gregory Services, Inc., a North American pipeline-related infrastructure services provider, until its sale in 2009. These roles point to a career centered on energy infrastructure, field services, and corporate transformation. ([mainstcapital.com](https://www.mainstcapital.com/investors/sec-filings/proxy-filings/content/0001558370-22-003997/0001558370-22-003997.pdf)) Earlier in his career, Mr. Jackson held senior leadership positions at Hanover Compressor Company, now associated with Exterran and Archrock. At Hanover, he served as Chief Financial Officer from 2002 to 2004 and then as President and Chief Executive Officer from 2004 to 2007, while also serving on the board until 2010. That combination of finance and operating roles suggests deep experience in capital allocation, cost discipline, and strategic execution. ([mainstcapital.com](https://www.mainstcapital.com/investors/sec-filings/proxy-filings/content/0001558370-22-003997/0001558370-22-003997.pdf)) Beyond executive management, Mr. Jackson has served as a director of several public and private companies and has participated on audit and compensation committees, including at Basic Energy Services and CNX Midstream Partners. He also served as a director of Seitel, Inc. His public record highlights substantial experience with listed companies, private enterprises, M&A activity, and restructuring situations. In Main Street Capital Corporation materials, he is identified as an independent director since 2013. ([mainstcapital.com](https://www.mainstcapital.com/investors/sec-filings/proxy-filings/content/0001558370-22-003997/0001558370-22-003997.pdf)) Overall, John Earl Jackson is best described as a seasoned energy-sector executive and board member with significant experience in midstream services, pipeline infrastructure, finance, and governance. His career reflects a consistent focus on operating performance, strategic transactions, and leadership through corporate transitions. ([mainstcapital.com](https://www.mainstcapital.com/investors/sec-filings/proxy-filings/content/0001558370-22-003997/0001558370-22-003997.pdf))