Introduction. The article presents the results of an experimental study to optimize the pumping of oil from a floating roof tank (hereinafter – RVSPK) located next to a burning oil tank. Purpose and objectives. The goal is to experimentally determine the optimal parameters of oil pumping systems from full-scale RVSPK located next to the burning one. Tasks: to study typical fires in the RVSPK; conduct full-scale experiments, optimize the parameters of pumping systems for emergency pumping of oil from the RVSPK located next to the burning reservoir. Methods. Analysis. Full-scale experiment. Results and discussion. As a result of field experiments on the study of the processes of pumping oil from an existing oil reservoir with a capacity of 14000 m3 during normal operation and in an emergency situation under fire conditions, experimental data were obtained on increasing the performance of pumps with constant operation of agitators and oil washout systems at an operating oil temperature of +50 С. Based on the results of the experiment, proposals were developed for optimizing the emergency operation of pumping systems, agitators and systems for washing out bottom sediments when pumping oil from a neighboring burning RVSPK, located on the territory of the Nghi Son oil refinery in Vietnam. Conclusions. The optimal parameters of pumping systems for emergency pumping of oil by process pumps from a non-burning RVSPK-14000 located next to a burning one are proposed. It is proposed to carry out pumping out with all pumps operating in the maximum mode, in combination with mixing oil in it with agitators and the operation of the system for washing out bottom sediments, which makes it possible to reduce the time of pumping oil by 2-3 times. Keywords: fire, oil, reservoir, spreading, pump, mixing.