To provide a low-sulfur gas oil composition by finding out other substances remarkably affecting the oxidation stability of gas oil and controlling the contents of the substances within specific ranges.

The method for producing the gas oil composition having 0.5 oxidation index IO represented by the following formula: IO=(C10LST)+3(C17HDI)-(R2A)-5(R3A) (wherein, C10LST is the content, mass% of a 10C styrenes compound; C17HDI is the content, mass% of a 17C dienes compound; R2A is the content, mass% of a bicyclic compound in condensed polycyclic aromatic hydrocarbons; and R3A is the content, mass% of a tricyclic compound in the condensed polycyclic aromatic hydrocarbons) is carried out as follows: At least one base material A having 0.5 oxidation index IO is mixed with at least one base material B having 0.5 oxidation index IO to produce the gas oil composition.