[3] Incumbent Republican state auditor and inspector Gary Jones ran unopposed for re-election to a second term in office.

Incumbent Republican Commissioner Patrice Douglas, the Chairman of the commission, did not run for re-election to a first full term in office.

[3] State Senator Cliff Branan and former Speaker of the Oklahoma House of Representatives and nominee for Lieutenant Governor in 2006 Todd Hiett ran for the Republican nomination.

[3] Regularly-scheduled election Incumbent Republican senator Jim Inhofe ran for re-election to a fourth term in office.

He was challenged in the Republican primary by D. Jean McBride-Samuels,[27] retired air traffic controller Rob Moye,[28] perennial candidate Evelyn Rogers[28] and Iraq War veteran Erick Wyatt.

Special election Incumbent Republican senator Tom Coburn announced his intention to resign on 113th Congress on January 3, 2015, four years into his second six-year term.

Patrick Hayes,[31] State Senator Constance N. Johnson[41] and perennial candidate Jim Rogers[31] ran for the Democratic nomination.