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Gun Marine Services (GMS) is a family-owned marine services company based in the town of Exmouth, on Western Australia’s North West shelf. The company commenced providing offshore services with one vessel in 1978.
Presently, GMS operates six aluminium utility vessels ranging in lengths from 18m to 34m, all fully surveyed and IMCA-audited to the highest standards of the offshore oil and gas industry.
GMS’ shore-based facilities include the offices, warehouse, and lay-down, engineering and transport facilities required to support our clients’ needs.
Offshore oil and gas vessel services
GMS’ services include:

Offshore personnel and equipment transfers
Seafreight transfers
Diver support
Extended oceanographic and geophysical surveys
Environmental investigations
Shore logistics and freight handling

Oil and gas field development and expedition services
GMS provides services, either directly or as a sub-contractor, to most major oil and gas companies operating in Western Australia. We also provide regular services to government and research institutions.
Our range of services focuses mainly on supporting oil and gas field development, and extended expedition programmes. Extended programmes include commercial diving, and environmental, hydrographic and oceanographic survey support.
Offshore personnel and equipment transfer services
GMS offers personnel and equipment services to the offshore industry, including vessel-to-vessel and vessel-to-platform crew change, seafreight transfer, emergency evacuation, equipment transfer and ‘hotshot’ transfer.
Diver support services
GMS’ range of diver support services includes support of in-water vessel hull inspections, environmental studies, salvage operations, and emergency repair and de-fouling works.
Oceanographic survey services
We offer the deployment and recovery of oceanographic equipment, including current metres, wave rider buoys, tide gauges and meteorological stations. We also conduct pipeline surveys and real-time current investigations using drogue tracking.
Geophysical survey services
GMS provides geophysical survey services, including the support of side-scan sonars, tow cameras, ROVs, bathymetry, swath bathymetry, boomer operations and sediment sample collections for geotechnical evaluation.
Environmental intertidal, very shallow and deep water investigations
We provide the support of intertidal, very shallow and deep water studies. These include whole-community, primary benthic producer, benthic ecology, megafauna, and water and sediment-quality studies.
Shore logistics and freight-handling services
GMS offers a comprehensive range of logistics solutions, including freight despatch, receivals and forwarding, quarantine and storage (undercover and yard), transportation, and loading.
Offshore services for oil and gas clients
GMS has provided offshore services for a range of oil and gas clients, including Chevron, Apache Energy, Woodside Energy, BHP Billiton, Inpex, Shell, WA Oil Assets, Exxon, Technip, Seastream JV, Acergy, Beluga Shipping, Maersk, RPS Environment, RPS Metocean, Sinclair Knight Mertz, URS, International Risk Consultants, EGS Surveys, Fugro (Survey and Metocean), the Bureau of Meteorology, AIMS, University of Western Australia, and the Australian Department of Transport.
We have been working on Chevron’s Gorgon project since 1998 and are committed to providing continued services to the project.
Experienced and qualified offshore personnel
GMS is a family company consisting of a core group of local, experienced and professional people, who have an unparalleled understanding of the industry. All personnel live in the Exmouth, Australia area and are fully qualified and trained to provide a first-class service, safely and professionally.