Oklahoma State announced Thursday it will play a home-and-home series against another former Big 8 and Big 12 rival.
The Cowboys are slated to face the Colorado Buffaloes in back-to-back seasons.
OSU will tangle with CU on Sept. 13, 2036 in Stillwater followed by a return trip to Boulder on Sept. 12, 2037.
Colorado holds an advantage in the all-time series, tallying 26 wins over OSU, 20 losses and one tie.
The Buffaloes are the latest former conference opponent on the Cowboys' future non-conference schedule. OSU announced in Feb. 2020 that it will face off against Nebraska in another home-and-home series in 2034 and 2035.
Last month, the Cowboys announced another non-conference series against perennial national champion contender Alabama.