Okla. Stat. tit. 62 § 306e
In any case where the owner of any property which is or shall be charged with a lien for the payment of any such matured and unpaid special assessment street improvement bond or special assessment warrant or tax bill, is the owner and holder of any such bond or portion of bond or special assessment warrant or tax bill, he may upon surrendering the same to the city clerk of the municipality wherein such special assessment shall appear, have such special assessment and lien thereof canceled and such city clerk shall make an endorsement upon the bond or special assessment warrant or tax bill and such city clerk shall make a notation upon the special assessment tax rolls showing that such special assessment has been discharged and released and shall cancel such bond and file the same in his office.
Okla. Stat. tit. 62, § 306e