The Corrib gas project (Irish: Tionscanamh Ghás Aiceanta na Coiribe) is a developed natural gas deposit located in the Atlantic Ocean, approximately 83 kilometres (52 mi) off the northwest coast of County Mayo, Ireland. The project includes a natural gas pipeline and an onshore gas processing plant, which commenced gas production in 2015. During its development, the project attracted considerable opposition. The Corrib field is Ireland's only domestic source of natural gas production.