Okla. Stat. tit. 11, § 11-11-116: Purchases and sales by mayor - Competitive bidding -

Transfer of mayor's powers.

A. The mayor, subject to any regulations which the council may

prescribe, shall contract for, purchase, or issue purchase

authorizations for all supplies, materials and equipment for

offices, departments and agencies of the city government. Every

contract or purchase exceeding an amount to be established by

ordinance shall require the prior approval of the council. The

mayor may also sell or transfer to or between offices, departments

and agencies, surplus or obsolete supplies, materials and equipment,

subject to regulations as the council may prescribe.

B. The council by ordinance may prescribe requirements and

procedures for competitive bidding. Notice and opportunity for

competitive bidding, in accordance with regulations as the council

may prescribe, shall then be given before a purchase or contract for

supplies, materials or equipment is made. The council shall not

exempt a particular contract, purchase or sale from the requirement

of competitive bidding.

C. The council by ordinance may transfer some or all of the

power granted to the mayor by this section to an officer appointed

by and subordinate to the mayor.