Current common carriers

Alamo Gulf Coast Railroad (AGCR)

Amtrak (AMTK)

Angelina and Neches River Railroad (ANR)

Austin Area Terminal Railroad (AUAR)

Blacklands Railroad (BLR)

Border Pacific Railroad (BOP)

Brownsville and Rio Grande International Railroad (BRG)

BNSF Railway (BNSF)

Dallas, Garland and Northeastern Railway (DGNO)

Fort Worth and Western Railroad (FWWR)

Galveston Railroad (GVSR)

Georgetown Railroad (GRR)

Grainbelt Corporation (GNBC)

Gulf, Colorado and San Saba Railway (GCSR)

Jefferson and Cypress Bayou Railway (JCB)

Kansas City Southern Railway (KCS)

Kiamichi Railroad (KRR)

Moscow, Camden and San Augustine Railroad (MCSA)

Orange Port Terminal Railway (OPT)

Panhandle Northern Railroad (PNR)

Pecos Valley Southern Railway (PVS)

Point Comfort and Northern Railway (PCN)

Port Terminal Railroad Association (PTRA)

Rio Valley Switching Company (RVSC)

Rockdale, Sandow and Southern Railroad (RSS)

Sabine River and Northern Railroad (SRN)

South Orient Railroad

South Plains Lamesa Railroad (SLAL)

South Plains Switching

Southern Switching Company (SSC)

Southwestern Railroad (SW)

Texas and Northern Railway (TN)

Texas Central Business Lines (TCB)

Texas City Terminal Railway (TCT)

Texas Mexican Railway (TM)

Texas Northeastern Railroad (TNER)

Texas Pacifico Transportation (TXPF)

Texas Rock Crusher Railway (TXR)

Texas South-Eastern Railroad (TSE)

Texas, Gonzales and Northern Railway (TXGN)

Texas-New Mexico Railroad (TNMR)

Timber Rock Railroad (TIBR)

Union Pacific Railroad (UP)

West Texas and Lubbock Railroad (WTLR)

Western Rail Road (WRRC)

Wichita, Tillman and Jackson Railway (WTJR)

Defunct Railroads

Atchison, Topeka and Santa Fe Railway (ATSF)

Chicago, Rock Island and Pacific Railroad

Gainesville, Henrietta and Western Railway (later part of MKT)

Galveston and Houston Electric Railway

Gulf, Colorado and Santa Fe Railway (GCSF)

Kansas City, Mexico and Orient Railway (KCMO)

Missouri Pacific Railroad (MP)

Missouri-Kansas-Texas Railroad (MKT)

Panhandle and Santa Fe Railway (PSF)

Southern Pacific Railroad (SP)

St. Louis - San Francisco Railway (SLSF)