It also seems clear that the dispute, which centres on control of the Essequibo region in western Guyana, a sparsely populated area the size of Greece that constitutes about two-thirds of Guyanese territory, is mostly about oil. In 2015, the US oil giant, ExxonMobil, discovered a big field off Guyana’s coast, largely within its exclusive economic zone.
The discovery has swollen Guyana’s estimated oil reserves to about 11bn barrels.
most of that territory was venezuelan before the brits (who the fuck else) fucked thing up.