A low pour point additive composition comprising an admixture of about 1 to 20 weight percent of a copolymer of ethylene and a monoethylenically unsaturated ester, about 5 to 25 weight percent liquid monohydroxy phenols, and at least about 55 weight percent of a hydrocarbon solvent containing a substantial proportion of cyclic hydrocarbon compounds. A method for treating high pour point, wax-containing oil to inhibit the deposition of wax from the oil and to facilitate storage and pipeline transportation of the oil at ambient temperatures below the normal pour point of the wax-containing oil wherein the additive composition is admixed into the wax-containing oil to provide therein an effective concentration of the copolymer between about 5 to 10,000 ppm.