Okla. Stat. tit. 12A, § 12A-3-116: Joint and Several Liability; Contribution

JOINT AND SEVERAL LIABILITY; CONTRIBUTION

(a) Except as otherwise provided in the instrument, two or more

persons who have the same liability on an instrument as makers,

drawers, acceptors, endorsers who indorse as joint payees, or

anomalous indorsers are jointly and severally liable in the capacity

in which they sign.

(b) Except as provided in subsection (f) of Section 3-419 of

this title or by agreement of the affected parties, a party having

joint and several liability who pays the instrument is entitled to

receive from any party having the same joint and several liability

contribution in accordance with applicable law.