The extraction and sale of crude petroleum brought enormous prosperity for OPEC members and of economic growth and general development of their countries. However, after the Arab-Israeli (Yom Kippur) war of October 6, 1973, Non-OPEC countries step-up actions in crude petroleum oil production, refining throughputs and processing of petroleum products, and strategic crude/refined oil reserves. This made them to outperformed the OPEC cartel in virtually all sectors of the global oil industry. The study is a qualitative one. Document studies were adopted and utilized in generating data from secondary sources such as books, journals, bulletins, policy papers, newspapers and internet materials. The data was analyzed through discourse and explanatory methods; where numerical data were analyzed through descriptive method. The study has established that Non-OPEC outperformed OPEC by 549% in the refining sector. The study also established that Non-OPEC outperformed OPEC by 591% in the oil demand sector. The implication of this sub-optimal performance by OPEC in the vital sectors of refining and oil demand portend great danger for their economies in no distant time. The inability of OPEC members to embark on exclusive refining and of more oil demand for their industries forms the main motivation for the study.