The Nederlandse Aardolie Maatschappij BV, known in dutch as de NAM is a joint venture between Royal Dutch Shell and Exxon Mobil, 50% each. NAM has explored for and produced oil & gas in the Netherlands since 1947, both onshore and offshore. Their main objectives are to sustain production from existing fields, explore for and develop new fields, and obtain more gas from existing fields by using innovative techniques.