Oregon Revised Statutes Insurance § 743B.452

(1) An insurer that fails to pay a claim to a provider within the timelines established in ORS 743B.450 shall pay simple interest of 12 percent per annum on the unpaid amount of the claim that is due and owing, accruing from the date after the payment was due until the claim is paid. Interest on any overdue payment for a claim begins to accrue on the 31st day after:

(2) The interest is payable with the payment of the claim. An insurer is not required to pay interest that is in the amount of $2 or less on any claim.

(3) The availability of interest under subsection (1) of this section is in addition to and not in lieu of administrative actions and penalties that may be imposed by the Director of the Department of Consumer and Business Services under the Insurance Code.