Saudi-SoCal oil concession agreement signedJan 1, 1933Labels: King Abdulaziz, Standard Oil, Eastern ProvinceBritannicaBritannica
Commercial oil struck at Dammam Well No. 7Mar 4, 1938Labels: Dammam No, Dhahran, Commercial OilSaudipediaAramcoWorld
Commercial production from Dammam publicly announcedOct 16, 1938Labels: Dammam field, Aramco operations, Export infrastructureSaudipedia
King Abdulaziz opens valve for first tanker exportMay 1, 1939Labels: King Abdulaziz, Ras Tanura, D GSaudipediaUNT Library
Concession expanded through a supplemental agreementMay 31, 1939Labels: Supplemental Agreement, Concession Area, Saudi governmentGeoExpro
Abqaiq field discovered, strengthening long-term supplyJan 1, 1940Labels: Abqaiq field, Exploration Success, Eastern ProvinceMax SteinekeAbqaiq Field
Small Ras Tanura refinery established during early growthJan 1, 1940Labels: Ras Tanura, World War, Local refiningSaudipediaGeoExpro
Company renamed to Arabian American Oil Company (Aramco)Jan 31, 1944Labels: Aramco, CASOC, RebrandingSaudi AramcoEncyclopedia com
Planning advances for Trans-Arabian Pipeline (Tapline)Jan 1, 1945Labels: Tapline, Aramco pipeline, Mediterranean routeBritannicaAramco
Roosevelt–Abdulaziz meeting links oil to diplomacyFeb 14, 1945Labels: Franklin Roosevelt, King Abdulaziz, USS QuincyU S NavyTIME
Tapline construction begins across the northern desert routeJan 1, 1947Labels: Tapline construction, Northern desert, InfrastructureAramcoBritannica
New U.S. partners take stakes in AramcoJan 1, 1948Labels: Standard Oil, Socony-Vacuum, Aramco ownershipExxonMobil HistEncyclopedia com
Tapline begins operations, expanding export flexibilityJan 1, 1950Labels: Tapline operations, Mediterranean export, Crude transportBritannica
50–50 profit-sharing agreement reshapes state revenueNov 1, 1950Labels: 50 50, Saudi government, Aramco revenueCIA FOIAKing Saud Lib