OMSB

Onslow Marine Support Base (OMSB) operates as a dual-port precinct in Onslow, combining Beadon Creek and the Port of Ashburton into one coordinated hub just 17 km apart. With over 600 m of combined berth line, OMSB handles vessels up to 150 m LOA and 8 m draft at the Port of Ashburton and 110 m LOA and 6.5 m draft at Beadon Creek, ensuring congestion-free, scalable operations for multi-vessel programs. Round-the-clock stevedores, dual LCT ramps, a heavy-lift crane pad, HACCP temperature-controlled storage and integrated warehousing make fast turnarounds standard practice. ISO 9001/14001/45001 certifications, Climate Active accreditation and DG/NORM licences reflect OMSB's commitment to safety and sustainability. With up to 900 kL fuel and 800 kL water capacity, OMSB enables rapid mobilization for offshore campaigns. Strategically located near the Northern Carnarvon Basin and the Pilbara Regional Waste Management Facility, OMSB delivers flexible, efficient offshore support and decommissioning logistics across the Pilbara.