This paper investigates the problem of destroying highly stable water-in-oil emulsions. The high stability of water-in-oil emulsions is primarily caused by the presence of heavy, high-molecular-weight polar components in oil that envelope water droplets and that prevent these droplets from combining (coalescing). Using conventional techniques in this case yields no positive results. Employing electromagnetic energy is one way to address this problem. This paper presents the results of experimental studies of the effects of radio frequency and microwave radiation on water-in-oil emulsion samples. In addition to the experimental research, a mathematical model is proposed that describes the effect of electromagnetic radiation on water-in-oil emulsions.