Okla. Stat. tit. 11, § 11-39-118: Duties of trustees in foreclosure actions

In any action seeking the foreclosure of a lien against any

tract or parcel of land assessed by a city for the construction of

any improvement after bonds have been issued, the trustee of the

fund from which the bonds are to be paid may:

1. Purchase the tract or parcel of land sold at the foreclosure

sale; or

2. Bid, in lieu of cash, the full amount of the assessment and

interest found by the court to be due and payable under the

ordinance creating the lien and any cost taxed by the court in the

foreclosure proceedings against the property ordered sold.