“Ships of the world, start your engines. Let the oil flow!”

That was US President Donald Trump on Truth Social after news that the US and Iran had reached a ceasefire agreement - a deal Iran has also confirmed.

But we've been here before - and while the announcement is dramatic, plenty of questions remain. Will the oil really flow? How will we know when the Strait of Hormuz is truly open? How long will it take for fuel supply to normalise? And what happens next for oil prices?

Carrington Clarke and Alan Kohler help you keep on top of the numbers behind the ongoing energy crisis on Fuelcast on ABC Business Daily.

Got a burning brent crude question?

Send an email to Carrington and the team [email protected]