Class 2Class 2 U.S. senators belong to the electoral cycle that has recently been contested in 2008, 2014, 2020, and 2022 (special election). The next election will be in 2026. |
C |
Class 3Class 3 U.S. senators belong to the electoral cycle that has recently been contested in 2010, 2014 (special election), 2016, and 2022. The next election will be in 2028. |
# |
Senator |
Party |
Dates in office |
Electoral history |
T |
T |
Electoral history |
Dates in office |
Party |
Senator |
# |
Vacant |
Nov 16, 1907 – Dec 11, 1907 |
Oklahoma did not elect its senators until one month after statehood. |
1 |
60th |
1 |
Oklahoma did not elect its senators until one month after statehood. |
Nov 16, 1907 – Dec 11, 1907 |
Vacant |
1 |
 Robert L. Owen |
Democratic |
Dec 11, 1907 – Mar 4, 1925 |
Elected in 1907. |
Elected in 1907. |
Dec 11, 1907 – Mar 4, 1921 |
Democratic |
 Thomas Gore |
1 |
61st |
2 |
Re-elected in 1909. |
62nd |
Re-elected in 1913. |
2 |
63rd |
64th |
3 |
Re-elected in 1914.Lost renomination. |
65th |
Re-elected in 1918.Retired. |
3 |
66th |
67th |
4 |
Elected in 1920.Lost re-election. |
Mar 4, 1921 – Mar 4, 1927 |
Republican |
 John W. Harreld |
2 |
68th |
2 |
 William B. Pine |
Republican |
Mar 4, 1925 – Mar 4, 1931 |
Elected in 1924.Lost re-election. |
4 |
69th |
70th |
5 |
Elected in 1926. |
Mar 4, 1927 – Jan 3, 1951 |
Democratic |
 Elmer Thomas |
3 |
71st |
3 |
 Thomas Gore |
Democratic |
Mar 4, 1931 – Jan 3, 1937 |
Elected in 1930.Lost renomination. |
5 |
72nd |
73rd |
6 |
Re-elected in 1932. |
74th |
4 |
 Joshua B. Lee |
Democratic |
Jan 3, 1937 – Jan 3, 1943 |
Elected in 1936.Lost re-election. |
6 |
75th |
76th |
7 |
Re-elected in 1938. |
77th |
5 |
 Edward H. Moore |
Republican |
Jan 3, 1943 – Jan 3, 1949 |
Elected in 1942.Retired. |
7 |
78th |
79th |
8 |
Re-elected in 1944.Lost renomination. |
80th |
6 |
 Robert S. Kerr |
Democratic |
Jan 3, 1949 – Jan 1, 1963 |
Elected in 1948. |
8 |
81st |
82nd |
9 |
Elected in 1950. |
Jan 3, 1951 – Jan 3, 1969 |
Democratic |
 Mike Monroney |
4 |
83rd |
Re-elected in 1954. |
9 |
84th |
85th |
10 |
Re-elected in 1956. |
86th |
Re-elected in 1960.Died. |
10 |
87th |
Vacant |
Jan 1, 1963 – Jan 7, 1963 |
|
88th |
11 |
Re-elected in 1962.Lost re-election. |
7 |
 J. Howard Edmondson |
Democratic |
Jan 7, 1963 – Nov 3, 1964 |
Appointed to continue Kerr's termLost nomination to finish Kerr's term. |
8 |
 Fred R. Harris |
Democratic |
Nov 3, 1964 – Jan 3, 1973 |
Elected to finish Kerr's term. |
89th |
Re-elected in 1966.Retired. |
11 |
90th |
91st |
12 |
Elected in 1968. |
Jan 3, 1969 – Jan 3, 1981 |
Republican |
 Henry Bellmon |
5 |
92nd |
9 |
 Dewey F. Bartlett |
Republican |
Jan 3, 1973 – Jan 3, 1979 |
Elected in 1972.Retired. |
12 |
93rd |
94th |
13 |
Re-elected in 1974.Retired. |
95th |
10 |
 David Boren |
Democratic |
Jan 3, 1979 – Nov 15, 1994 |
Elected in 1978. |
13 |
96th |
97th |
14 |
Elected in 1980. |
Jan 3, 1981 – Jan 3, 2005 |
Republican |
 Don Nickles |
6 |
98th |
Re-elected in 1984. |
14 |
99th |
100th |
15 |
Re-elected in 1986. |
101st |
Re-elected in 1990.Resigned to become President of the University of Oklahoma. |
15 |
102nd |
103rd |
16 |
Re-elected in 1992. |
Vacant |
Nov 15, 1994 – Nov 17, 1994 |
|
11 |
 Jim Inhofe |
Republican |
Nov 17, 1994 – Jan 3, 2023 |
Elected in 1994 to finish Boren's term. |
104th |
Re-elected in 1996. |
16 |
105th |
106th |
17 |
Re-elected in 1998.Retired. |
107th |
Re-elected in 2002. |
17 |
108th |
109th |
18 |
Elected in 2004. |
Jan 3, 2005 – Jan 3, 2015 |
Republican |
 Tom Coburn |
7 |
110th |
Re-elected in 2008. |
18 |
111th |
112th |
19 |
Re-elected in 2010.Resigned. |
113th |
Re-elected in 2014. |
19 |
114th |
Elected in 2014 to finish Coburn's term. |
Jan 3, 2015 – present |
Republican |
 James Lankford |
8 |
115th |
20 |
Re-elected in 2016. |
116th |
Re-elected in 2020.Resigned. |
20 |
117th |
12 |
 Markwayne Mullin |
Republican |
Jan 3, 2023 – present |
Elected in 2022 to finish Inhofe's term. |
118th |
21 |
Re-elected in 2022. |
119th |
To be determined in the 2026 election. |
21 |
120th |
121st |
22 |
To be determined in the 2028 election. |
# |
Senator |
Party |
Years in office |
Electoral history |
T |
C |
T |
Electoral history |
Years in office |
Party |
Senator |
# |
Class 2 |
Class 3 |