A year later, KOCY-FM activated a new transmitter site and increased its power to 70,000 watts, claiming "the tallest exclusive FM tower in the world".
[6] It would be another eight years before a new 94.7 station operated; on August 17, 1958, Carl E. Williams opened KEFM, offering a "fine music" format.
[8] 1963 saw an even larger change; the station moved to Midwest City and adopted a new KMWC call sign to reflect its home.
[9] However, Williams made an ill-advised move; he leased the station for six months in 1964 to Marlin Joe Pershall without Federal Communications Commission approval.
KEBC established itself as a force in the market; it pulled double-digit ratings in each year between 1979 and 1982, fighting with KKNG and KTOK for the top spot in Oklahoma City.
After 28 years in the country format, KEBC relaunched on July 8, 1996 as an alternative rock station known as "95X", adopting the call sign KNRX.
On November 7, 1997, after repeating "A Change Would Do You Good" by Sheryl Crow for an hour, KNRX became soft adult contemporary KQSR, seeking to target the 35–44 audience and citing the duplication of alternative music on stations in other formats in Oklahoma City.
By the spring of 2009, KHBZ-FM had adopted Clear Channel's syndicated Premium Choice active rock format, becoming musically identical outside of morning drive to sister stations KIOC in Beaumont, Texas and WHRL in Albany, New York.
On August 18, 2021, at 6 a.m., after playing "The End" by The Doors, KBRU flipped to sports, branded as "94.7 The Ref", under new a KREF-FM call sign.
On October 31, 2023, at midnight, KREF-FM dropped the sports talk format and, after playing the Jimi Hendrix cover of "The Star-Spangled Banner" and an old station identification from the station's time under the KBRU call sign, flipped back to classic rock as "Q94.7", and changed call letters to KOKQ.
The station launched with a "Two-For Tuesday", playing sets of two consecutive songs from the same artists all day, starting with Whitesnake's "Here I Go Again" and "Is This Love".