Okla. Stat. tit. 61, § 61-122
Taxpayer suits to enjoin execution of unlawful contracts
Any taxpayer of the State of Oklahoma, or any bona fide
unsuccessful bidder on a particular public construction contract,
Oklahoma Statutes - Title 61. Public Buildings and Public Works Page 42
within ten (10) days after any such contract has been executed, is
empowered to bring suit in the district court of the county where
the work, or the major part of it, is to be done to enjoin the
performance of such contract if entered into in violation of the
provisions of this act.