On February 4, 1941, the section of SH 136 from the Moore–Potter county line to Stinnett was cancelled. On September 22, 1942, the route was extended east to Borger. The highway was extended to the Oklahoma state line on November 21, 1963, replacing most of FM 278 and all of FM 2216.
On February 4, 1941, a section of SH 136 was removed from Moore-Potter county line to Stinnett. On September 22, 1942, the route was extended east to Borger. By November 21, 1963, the highway reached the Oklahoma state line, replacing most of FM 278 and all of FM 2216.