Okla. Stat. tit. 23, § 23-38: Detriment caused by carrier's delay

The detriment caused by a carrier's delay in the delivery of

freight, is deemed to be the depreciation in the intrinsic value of

the freight during the delay, and also the depreciation, if any, in

the market value thereof, otherwise than by reason of a depreciation

in its intrinsic value, at the place where it ought to have been

delivered, and between the day at which it ought to have been

delivered and the day of its actual delivery.