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Essequibo
Two-thirds of Guyana, claimed by Venezuela as Guayana Esequiba
West of the Essequibo River lies a vast stretch of rainforest, savanna, and table mountains that makes up about two-thirds of Guyana's territory. Guyana administers it and regards the border as settled by an 1899 arbitral award. Venezuela claims the whole area as Guayana Esequiba, calls the 1899 award null and void, and seeks a negotiated settlement under the 1966 Geneva Agreement. For decades the dispute simmered quietly. Then, from 2015, large offshore oil discoveries turned Guyana into one of the fastest-growing economies on Earth and raised the stakes, because the maritime zones that hold much of that oil depend on where the land boundary runs. The question now sits before the International Court of Justice.
The territory covers about 159,500 square kilometers, from the mangrove coast and rice fields of the Pomeroon and Essequibo shores to the forested interior and the Pakaraima Mountains on the Venezuelan and Brazilian borders, where Mount Roraima rises to 2,810 meters at the tripoint. The Potaro River drops over Kaieteur Falls inside the claimed area, and the Rupununi savannas stretch along the Brazilian frontier. About 125,000 people live there, by commonly cited estimates, many of them Indigenous Amerindian communities, along with coastal farming towns and gold- and diamond-mining camps. Guyana governs the area through its regular administrative regions, English is the official language, and the currency is the Guyanese dollar. Venezuela has no presence on the ground.
Spain and the Netherlands, then Venezuela and Britain, contested this frontier. In 1899 a tribunal in Paris awarded most of the disputed land to British Guiana, and Venezuela accepted the line until 1962, when it declared the award void, alleging a political deal among the arbitrators. The 1966 Geneva Agreement, signed on the eve of Guyana's independence, committed both sides to seek a settlement. In 2018 Guyana asked the ICJ to confirm the 1899 award. Venezuela rejects the court's jurisdiction but has taken part in the proceedings. It held a December 2023 referendum backing a Guayana Esequiba state, enacted it into law in 2024, and elected officials for it in 2025 despite an ICJ order. Hearings closed in May 2026, and the interim government that followed Nicolás Maduro's removal by US forces in January 2026 has kept the claim.