Several railroads built tracks through this area about the turn of the 20th century. In 1900–1901 the St. Louis, Oklahoma and Southern Railway, which the St. Louis and San Francisco Railroad (Frisco) purchased in June 1901, laid tracks north–south through the area. In 1902, the Western Oklahoma Railroad, which became the Choctaw, Oklahoma and Gulf Railroad (CO&G), built a line southwest to northeast through the present county. In 1908 – 1910 the Missouri, Oklahoma and Gulf Railway (MO&G), (acquired by the Kansas, Oklahoma and Gulf Railway in 1919,) laid a north–south line in the far eastern portion of Johnston County. In 1911, the MO&G built a spur west to Bromide, an early-twentieth-century health resort, capitalizing on the vicinity's natural springs. Now the Burlington Northern and Santa Fe, which acquired the Frisco in 1980, is the only railroad left in the county.