This case addresses effective service of process of an international organization by a non-member state. The United States Court of Appeals for the Eleventh Circuit relied upon the Federal Rules of Civil Procedure (FRCP) because the Organization of Petroleum Exporting Countries (OPEC) did not fall within the purview of the International Organizations Immunities Act (IOIA) and no other applicable treaty existed regarding the treatment of the OPEC in a United States domestic court. The decision’s reliance upon FRCP and application of foreign law resulted in the inability of the plaintiffs to bring a claim against the OPEC without its express consent.