Okla. Stat. tit. 11, § 11-36-202

A. The owners of more than one-half, in area, of the land

liable to assessment for any improvement may petition the municipal

governing body for the improvement of any street, alley, lane or

avenue, or part thereof, not less than one block in length. The

petition shall be filed with the municipal clerk. The petition

shall state in bold, capitalized letters at the top of the page that

the cost of the proposed improvements shall be assessed against the

property benefited by the improvements. The petition shall:

Oklahoma Statutes - Title 11. Cities and Towns Page 325

1. Describe the character of the improvement desired and the

width of the improvement;

2. Indicate the materials preferred by the petitioners for the

improvement; and

3. Show that the petitioners are the record owners of the land

liable to assessment.

B. The governing body shall determine the sufficiency of the

petition and its finding shall be conclusive and binding for all

purposes and against all persons. The governing body may conduct

hearings on the sufficiency of the petition and compel the

attendance of witnesses under oath. No action or suit to question

the findings of the governing body on the sufficiency of the

petition may be commenced later than fifteen (15) days after such

finding.

C. Upon making a satisfactory determination of the sufficiency

of the petition, the governing body shall direct the engineer to

prepare preliminary plans and estimates, as provided in Section 36-

203 of this title, and proceed with the improvement in the manner

provided by Sections 36-201 through 36-226 of this title.