The Nederlandse Aardolie Maatschappij was set up in 1947 to explore for gas and oil in the Netherlands and the Dutch section of the Continental Shelf. The company, now owned 50/50 by Shell and ExxonMobil, produces 75% of all gas extracted on Dutch territory and around half the oil. NAM is constantly in the news because of the Groningen earthquakes, caused by the land settling after gas has been extracted. In particular the company is under fire for its less than generous approach to households whose homes are now propped up by steel frames to stop them collapsing.