IMO 9438860
The vessel MARAN NANSEN was selected as Vessel Spotlight due to its ranking of #27 among 2,581 monitored vessels, with key metrics over the past 90 days including 304 loiter events and 493 zone dwell events. The top operating zones included the Danish Straits/Skagerrak, Southern Baltic Surveillance Zone, Eastern Mediterranean Monitoring Zone, and Eastern Mediterranean Sanctioned Vessel Zone. The vessel was detected in the vicinity of terminal zones, but no direct terminal visits were recorded during this period. These observations are based on AIS-derived behavioral indicators.
Vessel information
Movement & AIS Track
The vessel MARAN NANSEN was detected in the Danish Straits/Skagerrak zone most frequently, with 547 events recorded, including 312 zone dwell and 235 loiter events. It was also detected in the Southern Baltic Surveillance Zone (79 events) and the Eastern Mediterranean Monitoring Zone (66 events), with similar types of activities observed. The vessel was detected in the vicinity of several terminal zones; however, no direct terminal visits were recorded during this period.
| Zone | Events | Types | First Seen | Last Seen |
|---|---|---|---|---|
| Danish Straits/Skagerrak | 547 | zone_dwell: 312, loiter: 235 | Feb 15, 2026 | May 11, 2026 |
| Southern Baltic Surveillance Zone | 79 | zone_dwell: 40, loiter: 39 | May 12, 2026 | May 14, 2026 |
| Eastern Mediterranean Monitoring Zone | 66 | zone_dwell: 35, loiter: 30, ais_gap: 1 | Apr 1, 2026 | Apr 4, 2026 |
| Eastern Mediterranean Sanctioned Vessel Zone | 24 | zone_dwell: 24 | Mar 28, 2026 | Apr 25, 2026 |
| discovered_096 | 15 | zone_dwell: 15 | Apr 5, 2026 | Apr 25, 2026 |
| Cape Peninsula Surveillance Zone | 10 | zone_dwell: 9, ais_gap: 1 | Feb 16, 2026 | Apr 1, 2026 |
| Northern Skagerrak Surveillance Zone | 7 | zone_dwell: 6, ais_gap: 1 | Apr 1, 2026 | Apr 4, 2026 |
| English Channel Surveillance Zone | 6 | zone_dwell: 6 | Mar 22, 2026 | Mar 31, 2026 |
| Central Iberian Sea Monitoring Zone | 6 | zone_dwell: 6 | Mar 22, 2026 | Mar 31, 2026 |
| Southeast Aegean Monitoring Zone | 6 | zone_dwell: 6 | Feb 16, 2026 | Feb 17, 2026 |
| Northwest Iberian Sea Monitoring Zone | 5 | zone_dwell: 5 | May 12, 2026 | May 12, 2026 |
| Archipelago Sea Sanction Zone | 5 | zone_dwell: 5 | May 2, 2026 | May 4, 2026 |
| Eastern Gulf of Finland Monitoring Zone | 3 | zone_dwell: 3 | Apr 30, 2026 | Apr 30, 2026 |
| Brest Channel Surveillance Zone | 3 | zone_dwell: 2, ais_gap: 1 | Apr 1, 2026 | Apr 4, 2026 |
| Southeast Aegean Monitoring Zone | 3 | zone_dwell: 3 | Feb 15, 2026 | Feb 18, 2026 |
Recent Port Calls
| From | To | Departure | Arrival |
|---|---|---|---|
| ROSTOCK | ROSTOCK | 13/05/2026 21:39 | IN PROGRESS |
| ROSTOCK | ROSTOCK | 09/05/2026 18:06 | 12/05/2026 14:12 |
| ROTTERDAM | ROSTOCK | 04/05/2026 15:56 | 06/05/2026 14:08 |
Ownership & Management
Nansen Spirit LLC is a ship owner and manager based in Norway (registered in Marshall Islands) that owns and operates the crude oil tanker MARAN NANSEN (formerly NANSEN SPIRIT). The company manages shuttle tanker operations through its Norwegian management office in Stavanger.
⚠ Red Flags
- Marshall Islands registration combined with Norwegian management - common structure but requires verification of beneficial ownership
- Bahamas flag of convenience - standard in tanker industry but warrants sanctions screening
- Limited public information on ultimate beneficial owners
- Company name appears in multiple databases with slight variations (Maran Shuttle Tankers LLC vs. Nansen Spirit LLC)
Maran Shuttle Tankers Norway AS is the Norwegian-based operational headquarters of Maran Shuttle Tankers, the shuttle tanker division of the Angelicoussis Group (acquired in 2025). The company manages a fleet of approximately 20 shuttle tanker vessels engaged in offshore oil and gas transportation services globally.
Name, Flag & Ownership History
- Aug 1, 2025MARAN NANSEN
- Oct 1, 2010Nansen Spirit
- Oct 1, 2010🇧🇸 Bahamas
| Date | Company | Role |
|---|---|---|
| — | MARAN SHUTTLE TANKERS NORWAY | Ship manager/Commercial manager |
| Nov 9, 2017 | MARAN SHUTTLE TANKERS NORWAY | ISM Manager |
| — | EQUINOR ASA | Ship manager/Commercial manager |
| Oct 1, 2010 | SEAPEAK MARITIME LTD | ISM Manager |
| Oct 1, 2010 | NANSEN SPIRIT LLC | Registered owner |
| Oct 1, 2010 | ALTERA SHUTTLE LOADING PTE LTD | Ship manager/Commercial manager |
Media Mentions
Classification & Safety
Disclaimer
This vessel profile is compiled from publicly available information sources including maritime databases, government sanctions lists, and AIS position data. Information may be incomplete, delayed, or contain inaccuracies.
This content is for informational purposes only and does not constitute legal, financial, or compliance advice. FleetLeaks makes no warranties regarding the accuracy or completeness of the information presented. Users should independently verify all information before making decisions.
Data Scope & Currency
This dossier reflects automated analysis of publicly available data sources as of May 14, 2026 (UTC). FleetLeaks does not assert intent or wrongdoing. Observations are derived from AIS behavioral signals, registry records, and other open sources, each subject to inherent latency and reporting limitations.
Data Refresh
This dossier can be re-generated using the same automated pipeline with the most current available data. A refresh re-executes the standard selection, enrichment, and analysis process and does not alter methodology or thresholds. To request a refreshed version of this dossier, please contact us. A nominal fee may apply to cover compute and data access costs.
Generated: 2026-05-14T10:03:50.210715Z