The paper shows the topicality of the transition from the metering system for oil products at fuel depots and gas stations, organized with the help of automated measuring instruments, to the use of automated information and measurement systems for oil products metering (IMS OP) of a new generation. The structure diagram of the IMS OP is presented, the implementation of which allows solving the problem of formation of the normalized value of the unbalance between the actual results of measuring the mass of OP in the technological chain "Supplier -Distribution system -Consumer" and the current document flow. The basic algorithm of IMS OP operation is presented, as well as the results of its approbation as a part of IMS OP at the fuel depot of the Dno station of the October Railway.