The behavior of an array of liquid oxygen droplets vaporizing and burning in a gaseous mixture of hydrogen and water vapor at conditions supercritical for both propellants is investigated. The main objective is to investigate the effect of species and temperature non-uniformity (due to the presence of other droplets) on a LOX droplet transcritical behavior. Previously validated high-pressure phase equilibria computation algorithms and appropriate methods for the evaluation of thermophysical properties over wide temperature and pressure ranges are used. A simplified “parallel stream” configuration is considered. However, the contribution of the mass vaporized to the overall mass flux, is included in a quasi-steady manner. Hence the longitudinal velocity is non-uniform. Finite-rate chemical kinetics is used with a reduced four-step mechanism, three of which are assumed to be at partial equilibrium. The droplets are followed in a Lagrangian manner. The model used to predict the droplet behavior includes transient liquid heating, internal circulation effects and allows for critical interface regression if the critical mixing conditions are reached and secondary atomization in the stripping mode if it is found to occur. It is shown that, high temperatures from the reaction zone, and decreasing relative velocity caused by both the droplet drag and the accelerating gas flow concur to limit the effect of stripping. In most cases investigated, the critical mixing temperature was reached at the droplet surface. However, the total gasification rate is controlled by the stripping rate and is more than one order of magnitude larger than the primary vaporization rate. The predicted droplet lifetime is consequently reduced by at least one order of magnitude