Global Expertise in Tanker Ship Management

Global Expertise in Tanker Ship Management
OSM Thome is an experienced tanker ship management company. We currently have around 200 tankers under full management. These vessels vary in type, size and capacity. We believe quality tanker management depends on highly skilled and trained seafarers. It also requires advanced systems, experienced shore employees and well-defined processes. Together, these elements support quality technical management for our tankers.
Our company is also one of the world’s leading providers of professional tanker crewing services. We understand the complexities and pressures of the modern shipping industry. This is especially important in the tanker crew pool business. OSM Thome’s tanker crew pool includes thousands of seafarers, consisting of officers and ratings from various nationalities. Our crews are highly competitive and skilled in handling vessels’ daily operations and responsibilities.
OSM Thome is accredited to the highest industry standards. Our professional shore-based tanker management team works closely with owners to achieve safe and high-quality operations. We deliver timely monitoring and reporting through strict quality-assurance procedures. We also use innovative marine software and conduct regular hands-on inspections.
OSM Thome provides a full range of tanker ship management services. We support vessels across all segments, cargoes and trades worldwide. Our goal is to keep every managed vessel in good condition and ready to operate. We aim for high performance at competitive cost levels.
Driving Tanker Ship Management Excellence at Scale
Scale, safety and specialist expertise are central to our tanker ship management operations. Our experience, systems and people support reliable tanker operations worldwide.

EXPERIENCE

PARTNERS

CREW

EXPERTISE

Setting the Standard in Tanker Ship Management
OSM Thome is a trusted partner in tanker ship management, with deep expertise across the full spectrum of liquid-cargo vessels. Our tanker portfolio comprises 61% technical management and 39% crew management. More than 5,000 tanker seafarers are at sea, with an estimated 5,000 ashore.
Quality and compliance sit at the heart of our tanker management services. Customers’ vessels continue to hold approvals with major oil companies. They remain SIRE-ready and benefit from consistent operational continuity. Our fleet is audited by leading oil majors, including Equinor, Aker BP, ExxonMobil, Shell, AMPOL, Aramco, Chevron and Petronas, among many others.
We hold time charters with major oil companies and leading commercial operators, including Aramco, BP, Cargill, Champion Tankers, ENI, Equinor, ExxonMobil, Hafnia, Heidmar, Koch, Maersk Tankers, Marubeni, Neste, NFE, Norient Product Pool, Odfjell, Petronas, Pertamina, Petrobras, Premuda, Scorpio, Shell Group, Sinokor, Ultranav, Valero, Vitol and Womar.
A Diverse Tanker Fleet for Tanker Ship Management
We manage a diverse fleet of tankers under technical management. These vessels can handle demanding and specialised cargoes. Chemical and product tankers lead the portfolio at 61%, followed by crude and oil product tankers at 12%, crude oil tankers at 8%, shuttle tankers at 7%, gas carriers at 7%, product tankers at 5%, and asphalt and bitumen tankers at 1%.
This breadth of vessel types, combined with our oil major approvals and charter relationships, makes OSM Thome a dependable choice for owners seeking professional tanker ship management services.

OSM Thome has extensive experience in tanker ship management. We operate technical management hubs in strategic locations, including Singapore and Croatia. We technically manage tankers across every deadweight range. Our portfolio includes chemical tankers of up to 74,999 DWT.
Our portfolio spans the full spectrum of liquid-cargo vessels. It ranges from small tankers and Handysize vessels to MR, LR, Aframax, Suezmax and VLCC classes. This is complemented by gas carriers and shuttle tankers, giving owners a single, dependable partner across every size class and cargo type.
This breadth of expertise is reflected in the trust placed in us by leading owners, charterers and operators worldwide, including Hafnia, Sinokor, Odfjell, Neste, Frontline, Champion Tankers and many others.

OSM Thome Is The World's Number One Third-Party Shuttle Tanker Manager
OSM Thome is a leading third-party shuttle tanker manager, well known in the market for delivering high-level, core tanker technical management services. The experience gathered through both shipboard and shore-based technical management has allowed us to develop integrated, comprehensive quality systems and structures for safe and efficient operation. Of the roughly 90 shuttle tankers worldwide, OSM Thome provides crew and technical management for approximately 10% of the global fleet.
Unmatched Heritage and Experience
Our heritage in this specialised field dates back to 1979 through Rasmussen Maritime Services, giving us extensive experience in managing and operating DP2 and DP3 shuttle tankers in some of the world’s most demanding environments. This includes serving as manager of the world’s first shuttle tankers, Polytrader and Polytraveller. We work in long-standing collaboration with Equinor to develop and refine shuttle tanker concepts and operational standards.
Proven Shuttle Tanker Management Track Record
OSM Thome has a proven track record in full project management and newbuilding supervision at leading yards, including Samsung and DSIC. We also manage next-generation LNG dual-fuel DP shuttle tankers with significantly reduced emissions, reflecting our commitment to safe, efficient and forward-looking tanker management.
Skilled, Shuttle-Ready Crews
Crew competence is developed through OSM Thome’s own training academies, ensuring highly skilled and shuttle tanker-ready crews. We operate shuttle tankers for Transpetro through a dedicated site office in Brazil, supporting long-term charter performance. Our fleet is trusted and audited by major oil companies, including Equinor, ExxonMobil, Shell and Petrobras.
Shuttle Tanker Management Capabilities
DP expertise · Bow loading systems · Submerged turret loading · Demanding environment operations · VOC and dual-fuel technology · OCIMF and TMSA compliance

Gas Carrier and Tanker Ship Management
OSM Thome has one of the world’s largest pools of seafarers in the gas industry. Our gas carrier management services draw on experience involving FSRUs, gas-to-power initiatives, full crew management of multiple offshore units, and LNG, LPG and ethylene operations—all delivered at competitive cost levels. Our pool of LNG, LPG and ethylene seafarers surpasses 850 positions onboard, with an estimated further 940 ashore.
Comprehensive Technical Management
OSM Thome currently provides technical management for LPG carriers, VLGCs, ethylene carriers and small LNG bunkering tankers. We bring pioneering experience with a 45,000 cbm LNG carrier featuring the LNT A-Box System, managed from newbuilding supervision through delivery and operation.
Proven Newbuilding and Operational Expertise
Our newbuilding team has successfully overseen the construction and outfitting of several LNG carriers. The latest addition is an LNG bunkering tanker built for ScaleGas, which OSM Thome will assume technical management of upon delivery. We hold a proven track record in operating semi-refrigerated LPG, Ethylene and LNG carriers, with competence in the carriage of a wide range of gases including Ethylene, Propylene, VCM and Butadiene.
Safety and Specialist Capability
OSM Thome maintains a zero cargo claims record over the last five years and is highly competent in LNG and LPG ship-to-ship (STS) operations. We have also carried out feasibility studies and tendered for numerous small-scale LNG projects, reflecting our depth of specialist capability across the gas sector.
Capabilities
LPG (pressurised, semi-pressurised) · LEG / Ethylene · LNG · Multi-gas · LNG FSRU/FRU








OIL MAJORS
OSM Thome’s tanker fleet is trusted and audited by the world’s leading oil majors, including Equinor, Aker BP, ExxonMobil, Shell, Petrobras, Neste, ENI and BP. These relationships reflect the consistently high standards we maintain across safety, quality and tanker ship management operational performance.
TMSA
Our vessels are audited by oil majors against the Tanker Management and Self Assessment (TMSA) framework, demonstrating our commitment to industry best practice and continuous improvement.
TRADABILITY
This rigorous oversight in our tanker ship management approach protects and enhances the tradability of our customers’ vessels. Owners benefit from continued approvals with the oil majors, SIRE approval readiness, and full operational continuity, ensuring their tankers remain commercially competitive and ready to trade.
Explore Our Services

Crew Management

Ship Management


