In 1912 Gulbenkian was the driving force behind the creation of the Turkish Petroleum Company (TPC)—a consortium of the largest European oil companies aimed at cooperatively procuring oil exploration and development rights in the Ottoman territory of Mesopotamia, while excluding other interests. The German interests would be limited to a 25% share, with a 35% share for the British, and the remaining for Gulbenkian to choose. So, he gave Royal Dutch Shell 25% and kept 15% for himself as "the conceiver, the founder, and the artisan of the Turkish Petroleum combine." A promise of these rights was made to the TPC, but the onset of World War I interrupted their efforts. At first, the British Foreign Office supported the d'Arcy group to gain a share and replace Calouste's share, but Gulbenkian worked closely with French concerns, arranged for the French to receive the German's share as part of the spoils of victory, and, in return, the French protected his interest.