Abstract: A method of recovering oleagineous compounds from hydrothermally treated biomass, including providing a biomass feedstock as an aqueous biomass suspension and processing the biomass suspension at a reaction temperature and a reaction pressure for a reaction time in a reactor to produce a product mixture is provided. In a separation step, die product mixture is contacted with an extraction fluid comprising at least one extraction, agent selected from the group consisting of mono-aromatic hydrocarbons, monoaromatic alcohols and monoaromatic ethers to obtain an organic liquid phase that contains at least a part of the oleagineous compounds. Use of at least one corresponding extraction agent in a method of recovering oleagineous compounds from hydrothermally treated biomass is also subject of the invention.