Fatima, a reservoir engineer with twenty years of experience, sat in her apartment in Al Reem Island. Her three children were behind her, attending online school. In front of her, a $50,000 workstation was useless. The 3D seismic model of the Upper Zakum field—a model that predicted the flow of 1.2 million barrels per day—was trapped inside the ADNOC HQ firewall.