A method of transferring liquid natural gas from a first container to a second container for a liquid natural gas powered vehicle or marine vessel via a pump station, the method comprising a) positioning the first container close to, the pump station by a motor driven vehicle, b) positioning the second container close to, such as less than 25 meter from, the pump station by a mobile unit, c) transferring the liquid natural gas from the first container to the pump station via a first thermally insulated pipe or hose connected at a first end with a first dry coupling to the first container, or to a first connection leading to the first container, and connected at a second end to the pump station, d) transferring the liquid natural gas from the pump station and into the second container by a pump in the pump station and via a second thermally insulated pipe or hose connected at a first end to the pump station and connected at a second end with a second dry coupling to the second container, or to a second connection leading to the second container, and, after transfer is complete, e) disconnecting the second dry coupling at the second container or disconnecting it from the second connection leading to the second container and providing a flow of liquid natural gas back into the first container including utilising an overpressure in the insulated pipes or hoses (202, 208) and in pipes of the pump station relatively to the pressure in the first container to provide said flow, and f) filling the second container a plurality of times with liquid natural gas from the first container or filling a plurality of different second containers with liquid natural gas from the first container by repeating method steps b) - e), g) replacing the first container with a filled first container by performing method step a) when the first container is empty. a) positioning the first container close to, the pump station by a motor driven vehicle, b) positioning the second container close to, such as less than 25 meter from, the pump station by a mobile unit, c) transferring the liquid natural gas from the first container to the pump station via a first thermally insulated pipe or hose connected at a first end with a first dry coupling to the first container, or to a first connection leading to the first container, and connected at a second end to the pump station, d) transferring the liquid natural gas from the pump station and into the second container by a pump in the pump station and via a second thermally insulated pipe or hose connected at a first end to the pump station and connected at a second end with a second dry coupling to the second container, or to a second connection leading to the second container, and, after transfer is complete, e) disconnecting the second dry coupling at the second container or disconnecting it from the second connection leading to the second container and providing a flow of liquid natural gas back into the first container including utilising an overpressure in the insulated pipes or hoses (202, 208) and in pipes of the pump station relatively to the pressure in the first container to provide said flow, and f) filling the second container a plurality of times with liquid natural gas from the first container or filling a plurality of different second containers with liquid natural gas from the first container by repeating method steps b) - e), g) replacing the first container with a filled first container by performing method step a) when the first container is empty.