Civil-society accountants calculate that the absence of ring-fencing in Guyana's ExxonMobil-led Stabroek contract has already cost the state billions, adding pressure as production climbs above 900,000 barrels a day.

Civil-society accountants calculate that the absence of ring-fencing in Guyana's ExxonMobil-led Stabroek contract has already cost the state billions, adding pressure as…

Civil-society critics say the missing ring-fencing clause in Guyana's ExxonMobil Stabroek deal costs billions as output tops 900,000 barrels a day.