ACHIEVEMENTS OF OPEC by keypoint Raising the price of oil among member states. Ensuring that oil is not excessively produced by member states. Stabilizing oil prices. Ensuring that a uniform oil royalty is paid to the oil producing countries. Others are Viewing: ACHIEVEMENTS OF NIGERIA AS A MEMBER OF OPEC ORGANIZATION OF PETROLEUM EXPORTING COUNTRIES (OPEC) OBJECTIVES OF OPEC PROBLEMS OF OPEC ACHIEVEMENTS OF E.E.C. ACHIEVEMENTS OF ECOWAS ACHIEVEMENTS OF UNCTAD