Cullinan consolidated with twenty subsidiary companies into the American Republics Corporation.
American Republics Corporation was active in supporting the World War II efforts with oil supply and tanker ships.
James L. Autry and Will Hogg were Cullinan attorneys and stockholders at Texas Oil Company.
Cullinan also founded at the same time the American Petroleum Company at Corsicana, Texas.
American Petroleum Company operated Cullinan a pipeline and refining plant.
Corsicana oilfield was found by accident in 1894 by the American Well and Prospecting Company while drilling for water.
[5] Cullinan founded Petroleum Iron Works in 1895 after departing Standard Oil.