ExxonMobil is moving forward with a fresh drilling operation offshore Guyana, its eighth exploration well in the prolific Stabroek block this year, where it has unlocked nearly 11 billion barrels of oil equivalent in recoverable resources.

The US supermajor has started drilling the Yarrow-1 probe with the Stena Drilling drillship Stena Carron, according to updated information from Guyana’s Maritime Administration Department.

This drilling operation - some 170 kilometres from the Guyanese coast - is expected to conclude in late August.