Any lands detached from a municipality and the owners thereof shall be liable to the municipality only for the cost of public improvements which may have been constructed on the detached lands at the expense of the municipality. The municipality shall have no claim upon nor collect any tax from the detached territory for any public debt or the cost of any public improvements which have not been expended directly upon the detached lands.
Okla. Stat. tit. 11, § 21-111