Mark Green Faces Lawsuit Over Prosimos Dealings in Guyana as Refined Fuels Deal Is Challenged
A lawsuit filed in Florida at the end of February accuses former congressman Mark Green and his business partner of using confidential trade information while pursuing a refined fuels contract in guyana, an allegation that centers on a contested supply arrangement and claims of improper interference.
Guyana at the center: the refined fuels contract and competing firms
The complaint, brought by two businesses identified as Curlew Mainstream LLC and Playera Group Global LLC, alleges that a company formed by Green and his partner was created to compete for a fuel agreement with the Guyanese government. The filing names Prosimos as the company established alongside lobbyist and corporate attorney Marc C. Hebert and asserts that the venture targeted the same refined fuels opportunity being pursued by the plaintiffs.
Allegations, timeline and legal posture
The lawsuit lays out a sequence of events and claims that connect the parties and the disputed fuel deal. Key items described in the filing include:
- Hebert previously represented Playera while it worked with Curlew on the fuel arrangement for the Guyanese government; the complaint alleges protected trade information was taken from that relationship.
- Last spring, Green and Hebert established Prosimos; state records show Prosimos was registered to Hebert’s business address.
- In April of 2025, the filing alleges Green and Hebert alluded to influence over whether Curlew Midstream could secure the proposed Fuel Exchange agreement while Green remained in office and chaired a House committee.
- The same week as that alleged April meeting, the pair formed Prosimos in Florida and then communicated with the Guyanese government about claimed “issues” with Curlew, the complaint states, actions the plaintiffs say delayed the original agreement.
- As recently as January, Curlew was communicating with the Guyanese government about resolving remaining issues that were hindering the initial fuel agreement, the filing asserts.
- The suit names Green, Hebert, and Hebert’s law firm and alleges misuse of confidential trade information and efforts to compete for the refined fuels deal.
The complaint situates the dispute in the broader commercial interest around Guyana, a country that has drawn significant attention for its offshore oil reserves and related infrastructure needs. The filing frames the contested refined fuels contract as a lucrative opportunity that prompted competing U. S. interests to pursue the work.
What the filing says and what comes next
The lawsuit asserts that the defendants used confidential information from Playera and Curlew to form competing entities and to communicate with Guyanese officials in a manner that impeded Curlew’s progress. The defendants had not filed a documented response at the time of earlier coverage.
The matter now advances through the Florida court system. The complaint sets out factual allegations and a chronology that will be tested through the legal process; details may evolve as the case progresses and formal responses or hearings occur.
Because the complaint centers on contractual competition for a refined fuels agreement in guyana and claims of misused trade information, the litigation could have implications for firms pursuing overseas energy and supply contracts and for how former officials engage in such ventures after leaving public office.
