A liquefaction process, comprising: flashing a vapor stream derived from an incoming hydrocarbon feedstock received from a first heat exchanger through a throttling device to a mixed-phase stream at an intermediate pressure between a higher pressure of the incoming hydrocarbon feedstock and a lower pressure of a boil-off gas that originated from a storage facility; separating the mixed-phase stream in a vessel into a vapor first stream and a liquid second stream; passing the vapor first stream at the intermediate pressure through the first heat exchanger into a compression unit; passing the liquid second stream through a second heat exchanger; splitting the liquid second stream into at least two portions downstream of the second heat exchanger; directing a first portion of the second stream to form a liquid natural gas product into the storage facility; mixing a second portion of the second stream which is throttled to the lower pressure and passed back through the second heat exchanger with said boil-off gas from the storage facility that also exits the second heat exchanger to form a mixed stream; passing the mixed stream through the first heat exchanger and introducing it into the compression unit, the compression unit comprising a first compression circuit and a second compression circuit and, compressing the mixed stream from the lower pressure to a third pressure; passing a portion of the compressed mixed stream that exits the second compression circuit at the third pressure through the first heat exchanger; expanding the cooled portion of the compressed mixed stream from the third pressure in a turbo-expander, passing it back through the first heat exchanger, compressing it to the intermediate pressure in a turbo-compressor which is configured to operate in response to work from the turbo-expander; and re-introducing the re-compressed portion of the mixed stream at the intermediate pressure into the compression unit; wherein the intermediate pressure corresponds with suction pressure internal to the compression unit. flashing a vapor stream derived from an incoming hydrocarbon feedstock received from a first heat exchanger through a throttling device to a mixed-phase stream at an intermediate pressure between a higher pressure of the incoming hydrocarbon feedstock and a lower pressure of a boil-off gas that originated from a storage facility; separating the mixed-phase stream in a vessel into a vapor first stream and a liquid second stream; passing the vapor first stream at the intermediate pressure through the first heat exchanger into a compression unit; passing the liquid second stream through a second heat exchanger; splitting the liquid second stream into at least two portions downstream of the second heat exchanger; directing a first portion of the second stream to form a liquid natural gas product into the storage facility; mixing a second portion of the second stream which is throttled to the lower pressure and passed back through the second heat exchanger with said boil-off gas from the storage facility that also exits the second heat exchanger to form a mixed stream; passing the mixed stream through the first heat exchanger and introducing it into the compression unit, the compression unit comprising a first compression circuit and a second compression circuit and, compressing the mixed stream from the lower pressure to a third pressure; passing a portion of the compressed mixed stream that exits the second compression circuit at the third pressure through the first heat exchanger; expanding the cooled portion of the compressed mixed stream from the third pressure in a turbo-expander, passing it back through the first heat exchanger, compressing it to the intermediate pressure in a turbo-compressor which is configured to operate in response to work from the turbo-expander; and re-introducing the re-compressed portion of the mixed stream at the intermediate pressure into the compression unit; wherein the intermediate pressure corresponds with suction pressure internal to the compression unit.