The tests of the Kurdamir-2 exploration well, which yielded pay from an Oligocene reservoir earlier this year, confirmed the oil discovery in the deeper, low-permeability Shiranish formation of Cretaceous age but failed to deliver commercial flow rates, the Canadian player said in a statement.

The find is estimated to hold total unrisked mean resources of more than 1.6 billion barrels in its three reservoirs, but WesternZagros said the share in the Cretaceous section – 181 million barrels, or 11% - is now set to be downgraded.

However,