Okla. Stat. tit. 17, § 17-284: Rate increase applications - Effect given to known and

measurable changes.

In its review and examination of an application by a utility to

change its rates and charges pursuant to Sections 137, 152 or 158.27

of Title 17 of the Oklahoma Statutes, and in any order resulting

therefrom, the Corporation Commission shall give effect to known and

measurable changes occurring or reasonably certain to occur within

six (6) months of the end of the test period upon which the rate

review is based.