* BNSF Railway: Operates over 2,800 miles of track in Texas, making it the second largest railroad in the state.
* Kansas City Southern Railway: Operates over 1,100 miles of track in Texas, making it the third largest railroad in the state.
* Texas Pacifico Transportation: Operates over 800 miles of track in Texas, making it the fourth largest railroad in the state.
* Heartland Flyer: Operates over 300 miles of track in Texas, making it the fifth largest railroad in the state.
These five railroads account for the vast majority of rail traffic in Texas.