Equinor and its partners are investing more than NOK 4 billion ($390 million) to expand the Troll field, a giant North Sea asset that supplies around 10% of Europe's natural gas and contains 40% of Norway's remaining gas reserves. The project is expected to unlock around 11 billion cubic meters of natural gas, equivalent to roughly 69 million barrels of oil equivalent (boe), further strengthening one of Europe's most important sources of energy. Known as TWIN (Troll West Increased Gas Recovery North), the development will consist of two new wells…