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. R.L. 1910, § 168.
Oklahoma Legal Code