Oil was originally discovered in the 60's, I believe by the John Mecom Oil company from Texas.
Oman has oil.
Oman was created in 751.
Paz Oil Company was created in 1922.
Pars Oil Company was created in 1959.
Sirte Oil Company was created in 1981.
Behran Oil Company was created in 1963.
Vacuum Oil Company was created in 1866.
Marland Oil Company was created in 1917.
Cosmo Oil Company was created in 1986.
Jamuna Oil Company was created in 1964.
Scurlock Oil Company was created in 1936.