Oregon Revised Statutes Insurance § 731.628

(A) The aggregate of the present values at four percent interest of the determined and estimated future loss and loss-expense payments upon claims incurred more than three years next preceding the date of computation.

(B) The aggregate of the amounts computed under this subparagraph for each of the three years next preceding the date of computation. The amount for each year shall be 65 percent of the earned premiums for the year less all loss and loss-expense payments made upon claims incurred in the corresponding year, except that the amount for any year shall not be less than the present value at four percent interest of the determined and estimated future loss and loss-expense payments upon claims incurred in that year.