The task of calculating the annual, current plan of the oil extraction plant belongs to the top level of the hierarchy of the integrated production managementsystem. At this stage of management, as a rule, when formalizing the process of volumetric production planning, we use the method of converting a set of technological operations to a single operation — to transform initial products into final ones. In our work, we used a slightly different approach. In accordance with it, the continuous multistage production process of an oil extraction plant for the purposes of volumetric
planning and management of the aggregation method is reduced to two generalized operations - "PRESS" and "EXTRACTION". It is proposed to manage (plan) the process according to a two-step scheme - in accordance with the number of generalized operations. The presentation of the production system in the planning period according to a two-stage scheme, taking into account the production of intermediate products (black oil), improves the adequacy of the planning model and, consequently, increases the reasonableness and accuracy of planning.