Okla. Stat. tit. 4, § 4-150: Fence or improvements on land of another - When not

removable.

But such fence or other improvement, except substantial

buildings, shall not be removed if they were made of timber or other

material taken from the land on which they lie, until the party pays

the owner the value of the timber, or other material, to be

ascertained by fence viewers, nor shall a fence be removed at any

time when the removal will throw open or expose the crop of the

other party, but it shall be removed in a reasonable time after the

crop is secured, although six (6) months has passed.