A base stock composition may include: a naphthene component, wherein the naphthene component comprises a naphthene ring comprising two or more paraffinic branches covalently bonded to the naphthene ring, wherein the naphthene component has a carbon number in a range of C28 to C34; and a branched paraffinic component, wherein the branched paraffinic component comprises a paraffinic backbone with a carbon number in a range of C14 to C22, wherein the branched paraffinic component comprises two or more paraffinic branches covalently bonded to the paraffinic backbone, and wherein the branched paraffinic component has a carbon number in a range of C28 to C36.