Or. Rev. Stat. § 72A.5040
(3) If the lessor justifiably withholds or stops delivery of goods because of the lessee’s default or insolvency under ORS 72A.5250 or 72A.5260, the lessee is entitled to restitution of any amount by which the sum of the lessee’s payments exceeds:
(4) A lessee’s right to restitution under subsection (3) of this section is subject to offset to the extent the lessor establishes:
[1989 c.676 §51]