Okla. Stat. tit. 21, § 21-1709: Larceny of written instrument - Value

If the thing stolen consists of any evidence of debt or other

written instrument, the amount of money due thereon or secured to be

paid thereby and remaining unsatisfied, or which in any contingency

might be collected thereon, or the value of the property the title

to which is shown thereby, or the sum of which might be recovered in

the absence thereof, as the case may be, shall be deemed the value

of the thing stolen.