Okla. Stat. tit. 12, § 12-2408: Compromise and offers to compromise

Evidence of:

1. Furnishing, offering or promising to furnish; or

2. Accepting, offering or promising to accept,

a valuable consideration in compromising or attempting to compromise

a claim which was disputed as to either validity or amount is not

admissible to prove liability for the claim, invalidity of the claim

or the amount of the claim.

Evidence of conduct or statements made in compromise

negotiations is not admissible. This section does not require the

exclusion of discoverable evidence merely because it is revealed in

the course of compromise negotiations. This section does not

require exclusion of evidence when it is offered for another

purpose, including proof of bias or prejudice of a witness,

negativing a contention of undue delay, or proof of an effort to

obstruct a criminal investigation or prosecution.