It is a member of the Verkehrsverbund Rhein-Ruhr (VRR) regional transport organization.
In 2015 STOAG introduced the first two battery electric buses in the Ruhr area, operating on lines 962 and 966.
[1] In 2019 line 979, jointly operated by STOAG and Vestische, also switched to electric buses.
[2] The STOAG network has changed a lot in recent years.
Lines that travel through Oberhausen but are not operated by the STOAG are also included.