The application of the Sanderson method to the calculation of bonding energies of oxide systems in different states of aggregation is considered. In the framework of this method, the bonding energies of different oxides and oxide glass-forming systems are calculated with the inclusion of the second coordination sphere. The reliability of the calculations performed by the Sanderson method for bonding energies of oxide glass-forming systems is illustrated by comparing the obtained results with the available experimental data and theoretical values determined by other computational techniques.