Five months after the election, Irfaan Ali has been sworn in as president ... first to be held after the US oil giant Exxon made one of the world's biggest discoveries of oil in deep waters off ...
President of Guyana Irfaan Ali has acknowledged "time ... In 2015, when US oil major Exxon made its first discovery in Guyanese waters, gross domestic product per head was $11,000 (£9,380).