Okla. Stat. tit. 42, § 42-4: Special lien - Prior lien

A special lien is one which the holder thereof can enforce only

as a security for the performance of a particular act or obligation,

and of such obligations as may be incidental thereto. Where the

holder of a special lien is compelled to satisfy a prior lien for

his own protection, he may enforce payment of the amount so paid by

him, as a part of the claim for which his own lien exists.