Oil compositions containing two or more mixtures selected from the group consisting of a lauroyl glutamic acid diester mixture having a melting point higher than 33° C., a lauroyl glutamic acid diester mixture having a melting point of 20 to 32° C., and a lauroyl glutamic acid diester mixture having a melting point of −20° C. or lower can simultaneously achieve the texture properties (melting smooth feel, uniform spread over the lip surface, and transparent gloss), stability (such as improvement in breaking strength and improvement in temporal stability of the breaking strength), and the elasticity necessary for improving makeup duration of a lipstick.