Ship-to-ship operations
Crude oil ship-to-ship transfer
A VLCC lightering or a tanker-to-tanker transfer moves large cargo values between hulls of very different sizes. The margin for error lives in the mooring plan, the fender arrangement and the weather window.
The challenge
What a large transfer depends on
Freeboard differences change through the operation as cargo moves. Fender positions, mooring line loads and hose handling have to be planned for the start, the middle and the end of the transfer — not just the moment the vessels come alongside.
What we cover
What's included
- 01
VLCC and tanker transfers
Planning for high-capacity transfers between vessels of different size and freeboard.
- 02
Mooring & fender planning
Mooring arrangement, fender selection and positioning matched to both vessels.
- 03
Weather & location assessment
Operating limits agreed in advance, with the conditions that stop the operation.
- 04
Supervised execution & reporting
Disciplined supervision through approach, transfer and unmooring, with close-out reporting.
A transfer planned for every stage of the operation, with conditions monitored and limits respected.
Questions
Before you ask
J LINE Shipping is a maritime solutions company specialising in ship-to-ship (STS) operations, supported by flag registration and seafarer documentation, vessel inspections, and crew change, husbandry, bunkering and ship management support, for shipowners, charterers and vessel operators.
What do you need from us to plan a crude oil STS?
Vessel particulars for both ships, cargo details, the intended location and window, and any charter or terminal requirements. We confirm what else is needed after the first review.
Who decides if conditions are unsafe?
Operating limits and stop criteria are agreed in the plan before the operation. If conditions move outside them, the operation stops. Commercial urgency never overrides safety.
Related services
- LPG STS transfer →VLGC to pressurised carriers, LPG products debunkering and gas vessel port clearance.
- STS readiness & risk assessment →Compatibility, personnel, equipment and conditions — verified before you commit.
- Flag registration & seafarer documentation →Vessel flag registration and seafarer certification or endorsement, coordinated with the authorities.
Start here
Tell us about your operation.
Vessels, cargo, location and timing — whatever you know so far. We will come back with an honest assessment, the options, and a clear scope and cost.
A reply from a specialist · No obligation · Your details stay confidential