In order to improve the flexibility and processability of polymers, plasticizers are usually added to them. Highly aromatic oils [distillated Aromatic Extracts (DAEs)] are mostly used as process oils for rubbers in industry. As concerns for health and environment safety of DAEs due to their high content of polycyclic aromatic hydrocarbons (PAHs), rubber industry tends to consume process oils with lower content of PAHs such as, Treated distillate aromatic extract (TDAE), mildly extracted solvate (MES), hydro processed naphthenic oil (NAP). On the other hand, the more compatible the process oil and the rubber, the better the processability. “Solubility parameter” concept is a convenient way to determine the degree of solubility of materials in each other. In this study, inverse gas chromatography (IGC) method was used to calculate the solubility parameters and interaction parameters and depict solubility sphere for DAE, TDAE, MES, and NAP. The temperature dependence of these parameters was investigated as well. Results shows that in spite of the similarity in values of solubility parameter of DAE and TDAE at ambient temperature, increasing temperature leads to a significant difference in values. Despite other oils, TDAE shows a better compatibility with polar solvents. Also, interaction parameters show no specific dependence on the temperature for DAE, MES and NAP, except for polar solvents and TDAE. DAE has the highest compatibility with aromatic solvents . The compatibility trend with raising the temperature to values above 100◦C between oils and toluene is the same for all investigated except for TDAE which increase by increasing the temperature while others showed a reduction. The increase in alkyl chain is also effective in the way of increasing the compatibility of probes and their interaction parameters values as well. The solubility parameter δ2 of process oils determined to be 18.9, 18.9, 18.5, 19.0 (J/cm3)0.5 for DAE, TDAE, NAP, and MES at 25 °C.