This paper aims to provide a comprehensive legal analysis, reminding the reader of the missing roles and potential of the the Gulf Cooperation Council [GCC]. Interstate disputes threaten the very existence of the GCC. Moreover, they call into question the GGC's mechanisms for co-operation and for ensuring the peaceful settlement of disputes. For instance, the GCC's Charter, commercial arbitration rules, and the Basic Law of the Economic Judiciary Commission all provide provisions for peacefully settling disputes between GCC Member States and their citizens. GCC states are also members of the League of Arab States [Arab League], another important regional organization with dispute settlement procedures. However, GCC and Arab League judicial and quasi-judicial mechanisms have not been invoked to date, arguably because the states prefer a diplomatic settlement. This paper reviews the GCC's mechanisms for co-operation and dispute settlement, referencing public international law to formulate recommendations to reform the GCC.