Okla. Admin. Code § 710:10-3-12
(a) The analysis of the assessment and valuation equity of each county shall consist of a comprehensive review of sales and assessments within the county. The purpose of this analysis shall be to prepare a median sales ratio for residential and commercial, and a use-value median ratio for agricultural property within each county in the state. This information shall be used to obtain, at a minimum, the following statistics:
Added at 11 Ok Reg 3469, eff 6-26-94
Amended at 14 Ok Reg 2670, eff 6-26-97