2006 Oklahoma Senate election

The 2006 Oklahoma Senate election was held on November 7, 2006. Senators in 24 out of 48 districts were up for election. Going into the election, Democrats had a narrow 2 seat majority with 26 seats, compared to Republicans 22 seats. Their majority was reduced to 26-22 after the death of Senator Robert M. Kerr. and Republican Mike Schulz's victory in the subsequent special election. However, in August 2006 Senator Nancy Riley changed her party affiliation from Republican to Democratic, restoring the Democratic Senate majority to 26-22. On election day, Republicans gained 2 seats, resulting in the Senate being evenly split between Republicans and Democrats. A power splitting agreement was reached where there would be two President pro tempores, with two chairs and vice chairs for each committee. However Democrats maintained a functioning majority otherwise because they held the Lieutenant governorship, who holds the tie breaking vote.

As of 2023, this is the last election after which Democrats controlled the Oklahoma’s State Senate. This is also the only time the Oklahoma Senate has been evenly split between parties.

District 2
Incumbent Senator Stratton Taylor was term limited. Democrat Sean Burrage and Republican Ami Shaffer won their parties respective primaries, with Burrage winning the open seat. The 2nd district, located in northeast Oklahoma, contains portions of Mayes and Rogers counties.

District 4
Incumbent Democratic Senator Kenneth Corn ran for re-election. Thomas Lannigan won the Republican primary, but was defeated in a landslide by Corn. District 4 contains portions of Sequoyah and Le Flore counties.

District 6
Incumbent Democrat Jay Paul Gumm ran for re-election and was unopposed in the general election. District 6 contains all of Bryan, Johnston and Marshall counties and parts of Atoka and Coal counties.

District 8
Incumbent Democrat Frank Shurden was term limited. Democrat Roger Ballenger won the primary and was uncontested in the general election. District 8 contains portions of McIntosh, Okfuskee, Okmulgee and Tulsa counties.

District 10
Incumbent Democrat J. Berry Harrison was term limited. Democrat Joe Sweeden and Republican Jamie Marie Sears won their respective primaries, with Sweeden winning the general election by a large margin. District 10 contains portions of Kay, Osage, Pawnee, Payne, and Tulsa counties.

District 12
Incumbent Democrat and State Senate Majority Leader Ted Fischer was term limited. Democrat John Mark Young and Republican Brian Bingman won their respective primaries for the competitive open seat, which contains parts of Creek and Okfuskee counties. Bingham's campaign received endorsements from the Tulsa World and U.S. Senator Tom Coburn, but Young led by 8% in opinion polls before election day However, on election day Bingman defeated Young by 5.3%, flipping the seat for Republicans. This was one of two districts Republicans flipped, the other being District 24.

District 14
Incumbent Democrat Johnnie Crutchfield ran for re-election and was unopposed in the general election. District 14 includes Carter, Garvin, Love and Murray counties.

District 16
Incumbent Democrat Cal Hobson retired to run for Lieutenant Governor. Democrat John Sparks and Republican Ron Davis won their respective primaries, with Sparks winning the general election. District 16 is located near Oklahoma City, containing parts of Cleveland and McClain counties.

District 18
Incumbent Democrat Mary Easley ran for re-election. Mark Wofford won the Republican primary, but lost the general election to Easley. District 18 is located in northeast Oklahoma and contains Mayes, Tulsa and Wagoner counties.

District 20
Incumbent Republican David Myers ran for re-election and was unopposed in the general election. District 20 is located in northwestern Oklahoma and contains Alfalfa, Garfield, Grant, Kay, and Noble counties.

District 22
Incumbent Republican Mike Johnson ran for re-election. Tom Gibson won the Democratic primary, but was defeated in the general election by Johnson. District 22 is located near Oklahoma City and contains Canadian, Kingfisher, Logan, and Oklahoma counties.

District 24
Incumbent Democrat Daisy Lawler ran for re-election, facing Republican primary winner Anthony Sykes. Sykes narrowly defeated Lawler by 396 votes, flipping the district for Republicans. This was one of two districts Republicans flipped, the other being District 12. District 24 contains Cleveland, Grady, McClain, and Stephens counties.

District 26
Incumbent Democrat and Dean of the State Senate Gilmer Capps retired after 36 years in the Senate. Democrat Tom Ivester and Republican Todd Russ won their parties respective primaries, with Ivester narrowly winning the open seat by 275 votes. District 26 is located in southwestern Oklahoma and contains Beckham, Caddo, Greer, Jackson, Kiowa, Tillman and Washita counties.

District 28
Incumbent Republican Harry Coates ran for re-election and was unopposed in the general election. District 28 is located in central Oklahoma.

District 30
Incumbent Republican Glenn Coffee ran for re-election and was unopposed in the general election. Coffee was the Republican Co-President pro tempore in the 51st Oklahoma Legislature. District 30 is located in Oklahoma City.

District 32
Incumbent Democrat Randy Bass ran for re-election. Ed Petersen won the Republican primary, but was defeated by Bass in the general election. District 32 is located entirely within Comanche County and covers parts of Lawton.

District 34
Incumbent Republican Randy Brogdon ran for re-election. James S. Ward won the Democratic primary, but lost the general election to Brogdon in a landslide. District 34 is located on the outskirts of Tulsa and contains Rogers and Tulsa counties.

District 36
Incumbent Republican Scott Pruitt retired to run for Lieutenant Governor. Republican Bill Brown and Democrat Dennis Weese won their respective parties primaries, with Brown winning the general election. District 36 is located in northeast Oklahoma and contains Tulsa and Wagoner counties.

District 38
During the previous legislative session incumbent Democrat Robert M. Kerr died, with Republican Mike Schulz winning the subsequent special election. Schulz ran for re-election, defeating Democrat Josh Woods in a landslide. District 38 is located in western Oklahoma and contains Beckham, Custer, Dewey, Ellis, Greer, Harmon, and Roger Mills counties.

District 40
Incumbent Republican Cliff Branan ran for re-election. Pat Potts won the Democratic primary, but lost the general election to Branan. District 40 is located entirely within Oklahoma county and Oklahoma City.

District 42
Incumbent Republican Cliff Aldridge ran for re-election and was unopposed in the general election. District 42 is located entirely within Oklahoma county and Oklahoma City.

District 44
Incumbent Democrat Debbe Leftwich ran for re-election and was unopposed in the general election. District 44 is located entirely within Oklahoma county and is in southern Oklahoma City.

District 46
Incumbent Democrat Bernest Cain retired. Democrat Andrew Rice and Republican Joshua Jantz won their parties respective primaries, with Rice winning the general election in a landslide. District 46 is located entirely within Oklahoma county and encompasses downtown and the core of Oklahoma City.

District 48
Incumbent Democrat Angela Monson left the Oklahoma Senate in November of 2005. Connie Johnson won the subsequent special election. She ran for re-election and was uncontested in the general election. District 48 encompasses portions of northeastern and northwestern Oklahoma county, where Oklahoma City is located.