Behran Oil Company was created in 1963.
Vacuum Oil Company was created in 1866.
Cosmo Oil Company was created in 1986.
Jamuna Oil Company was created in 1964.
Scurlock Oil Company was created in 1936.
Marland Oil Company was created in 1917.
Sirte Oil Company was created in 1981.
Paz Oil Company was created in 1922.
Pars Oil Company was created in 1959.
Oman Oil Company was created in 1996.
Kuwait Oil Company was created in 1934.
Roc Oil Company was created in 1997.
Anglo-Persian Oil Company was created in 1908.