Premier Oil Natuna Sea BV owns, operates and maintains of the oil and gas facilities with approximate of 70-100m water depth. In order to maintain integrity of subsea asset, PONSBV performs routine and non-routine inspections to ensure healthiness, operation-ability and statutory compliance of asset. which are part of the Subsea Inspction, Maintenance, and Repair (IMR) program. The work were combinied of both ROV and Diving operation.