Okla. Stat. tit. 74, § 74-5157: Exemption from taxation and assessments

The exercise of the powers granted by this act will be for the

benefit of the people of the state and shall be liberally construed

to effect the purposes thereof. As the performance of public

services will constitute the performance of essential government

functions, any project or part thereof owned by the state and used

for performing any public service pursuant to a contract entered

into under this act that would be exempt from taxation or

assessments in the absence of such contract shall remain exempt from

taxation and assessments levied by the state and its subdivisions to

the same extent as if not subject to that contract. The gross

receipts and income of a successful proposer derived from providing

public services under a contract through a project owned by the

state shall be exempt from taxation levied by the state and its

subdivisions. Any transfer or lease between a proposer and the

state of a project or part thereof, or item included or to be

included in the project, shall be exempt from any taxes levied if

the state is retaining ownership of the project or part thereof that

is being transferred or leased.