Norway’s North Sea fields, once gushers of black gold, now whisper their final reserves. Production declines. Reservoir pressures drop. Yet hundreds of millions of barrels linger underground, teasing operators with promise. New analysis from the Norwegian Offshore Directorate points to advanced enhanced oil and gas recovery—EOGR—methods that could free 350 to 700 million standard cubic meters of oil equivalent. That’s nearly 4 billion barrels at the high end. Volumes rivaling the lifetime output of Johan Sverdrup, one of the shelf’s giants. But time slips away. Yahoo Finance warns of the risk: leave them behind, and Norway forfeits a vital supply stream in a world hungry for non-OPEC barrels. Ove Bjørn Wilson, senior reservoir engineer at the Offshore Directorate, spots the disconnect. “The gap between identified EOGR opportunities and the few pilot projects actually moving forward is still wide,” he says. Pilots crawl. Bureaucracy stalls. Fields mature faster than plans advance.…