According to the official records the railways started operating in the state on a full-fledged basis from the year 1930.
Amtrak which provides trains to various states of USA also operates in the Oklahoma state. The Heartland Flyer of Amtrak passes through the state of Oklahoma. Some other prominent railroad organizations of Oklahoma state include Kiamichi railroad, BNSF Railway, Sand Springs Railway, Cimarron Valley railroad, among others. Information about the railway routes can be available from the Oklahoma state map too. Besides the railway lines of the state, the Oklahoma railway map also indicates the states of Kansas, Texas, Arkansas, Colorado, Missouri and New Mexico.