Okla. Stat. tit. 12A, § 12A-3-412: Obligation of Issuer of Note or Cashier's Check

OBLIGATION OF ISSUER OF NOTE OR CASHIER'S CHECK

The issuer of a note or cashier's check or other draft drawn on

the drawer is obliged to pay the instrument (i) according to its

terms at the time it was issued or, if not issued, at the time it

first came into possession of a holder, or (ii) if the issuer signed

an incomplete instrument, according to its terms when completed, to

the extent stated in Sections 3-115 and 3-407 of this title. The

obligation is owed to a person entitled to enforce the instrument or

to an indorser who paid the instrument under Section 3-415 of this

title.