When OPEC was created in 1959, nobody thought of nationalizing the consortiums. The idea was to create a national oil company that would enable the local elites to know about the oil industry and eventually participate in this consortium. When OPEC was born, these were a bit the policy ideas of the organization. But very soon I would say a split emerged since you referenced what was the competition between the radicals and the more conservatives with OPEC at the beginning.