The arch dedicated to Marcus Aurelius and Lucius Verus at Oea was an important component in that town’s building activity. By situating the arch within its socio-historical context and acknowledging the political identity of Oea and nearby towns, this article shows that the arch at Oea far surpassed nearby contemporary arches in style, material, and execution. Further, this article demonstrates that the arch was a key element in Oea’s Roman identity. Finally, the article bridges disciplinary boundaries by bringing together art historical analysis with the concepts of euergetism, Roman civic status, and inter-city rivalry in the Roman Empire.