What is the detailed explanation of this picture ? SAUDI ARAMCO

The birth of Expansion Making a name Arabian oil for itself 1933-1944 1945-1965 1966-1988 1933 Oil concession agreement signed 1948 Standard Oil Company of New 1971 Oil production averages with Standard Oil of California Jersey, later Exxon, purchases 30% 4.5 mmbpd which creates the California of Arabian American Oil Company, Arabian Standard Oil Company and Socony-Vacuum Oil Company, 1973 The Saudi Government acquires an (CASOC) to manage the concession later Mobil, purchases 10% to help initial 25% participating interest in provide market outlets the concession, which increases to 1938 Oil discovered at Dammam 60% the following year Well No. 7 1949 Oil production hits 500 mbpd 1975 Decision made to build the Master 1939 Oil exports began 1952 Headquarters moved from Gas System, enabling one of the New York City to Dhahran world's largest gas markets, 1944 CASOC renamed the Arabian transforming the national energy American Oil Company 1958 Oil production exceeds mix toward clean fuel, and building 1 mmbpd the cornerstone for the economy's 1965 Oil production exceeds industrialization 2 mmbpd 1976 Becomes the world's leading oil producer in terms of volume produced in a single year 1980 Saudi Government increases its participation interest in the crude oil concession rights, production and facilities to 100%