Filing for the Oklahoma 2020 election, for all office other than president, has closed. Here is a link to the State Board of Elections website, listing the candidates for Congress and state office. For Corporation Commissioner, the only nominees on the ballot in November will be whoever wins the Republican primary, and Libertarian Todd Hagopian.
In 2018, when the only candidates for State Auditor were the Republican and the Libertarian, the Libertarian polled 24.8%.
Greg Sadler is in a similar two-way race for state Senate in district 17. Part of district 17 is in Pottawatomie County, where Bud Jeffrey is in a two-way race for County Court Clerk. Thus, some Pott. County voters will have three Libertarian vs Republican races in November.