199—15.3 (476) Information to board. In addition to the information required to be supplied to the board under 18 CFR 292.302, all rate-regulated electric utilities shall supply to the board copies of contracts executed for the purchase or sale, for resale, of energy or capacity. If the purchases or sales are made other than pursuant to the terms of a written contract, then information as to the relevant prices and conditions shall be supplied to the board. All information required to be supplied under this rule shall be filed with the board by May 1 and November 1 of each year for all transactions occurring since the last filing was made.