Okla. Stat. tit. 11, § 11-36-120: Compromise of assessments and penalties

If all the bonds or warrants secured by assessments in any

special assessment district in a municipality have been paid off and

retired, and there are any special assessment, assessments or

installments thereof remaining in the special assessment district

which have not been paid off or discharged, then the governing body,

in its discretion, may compromise and discharge the assessment,

assessments or installments therof, including penalties, for such

sum as the governing body determines to be in the best interest of

the municipality.