The features of oxidative cracking of vacuum distillate of Aturau and Zhetybai oil have been investigated.It was found that the yield of gasoline and light gas oil depends on the ratio of natural zeolite and clay inthe composite catalysts, flow rate of air and 0.2% catalyst suspension in the raw material and temperatureof the cracking. It was shown that maximum yield of gasoline, kerosene and gas oil was achieved with thecomposite catalyst containing 14% of activated zeolite. Suspension of this catalyst significantly promotesgas formation during oxidative cracking as compared to that for cracking in the inert atmosphere. Thisproves that catalytic destruction of high molecular hydrocarbons in the presence of trace amount of air isincreased. The yield of light gas oil is increased whereas yield of gasoline and gas is decreased when flowrate of 0.2% catalyst suspension in raw material is 1.0 hour-1 as compared to that for 0.1 hour-1 flow ratein oxidative cracking conditions. It was found (GLC method) that formation of diene and cyclodiene hydrocarbons during oxidative cracking at 0.1 hour-1 flow rate proceeds better than that for cracking in inert atmosphere. Oxidative cyclization into arenes proceeds when flow rate is 1.0 hour-1 whereas oxidative olefin dehydrogenation proceeds when flow rate is 0.1 hour-1. Alpha olefins were found in gasoline, kerosene and gas oil fractions (IR-spectroscopy).