The present invention is related to methods of making crustacean oil compositions. In particular, the crustacean oil compositions are krill oil compositions. In some embodiments, the krill oil compositions are concentrated in phospholipids. These concentrated phospholipid krill oil compositions have a sufficient flowability to permit successful encapsulation at phospholipid concentrations that is currently unattainable in the art. Such phospholipid krill oil compositions are capable of encapsulation even though they may have a phospholipid concentration ranging between approximately 60%-99% and a viscosity ranging between 100,000-3,000,000 cP. Such concentrated phospholipid krill oil compositions may be created using a small molecule organic solvent/water extraction mixture and/or sub-critical or super-critical fluid extraction at low temperatures followed by a drying process to remove water and organic solvent (e.g., for example, ethanol).