This document summarizes a course on oil and gas management. It introduces international oil companies (IOCs) and national oil companies (NOCs), and hypothesizes that cooperation between the two is beneficial. It then provides two case studies: Mexico opened its oil industry to foreign investment in 2013 after decades of a state monopoly, and Qatar partners with IOCs like ExxonMobil for liquefied natural gas projects due to Qatar's large reserves and the company's experience. The conclusion is that IOCs and NOCs will both compete and cooperate in the future.