(1) Each gas utility must file an annual report summarizing all transactions, except transactions provided at tariff rates, that occurred between the utility and its affiliated interests, and the utility and its subsidiaries. The report is due one hundred twenty days from the end of the utility's fiscal or calendar year (reporting period). The report must include a corporate organization chart of the utility and its affiliated interests and subsidiaries.

(2) When total transactions with an affiliated interest or a subsidiary are less than one hundred thousand dollars for the reporting period, the utility must provide the name of the affiliated interest or subsidiary participating in the transactions and the total dollar amounts of the transactions. When total transactions with an affiliated interest or subsidiary equal or exceed one hundred thousand dollars for the reporting period, the utility must provide:

(a) A balance sheet and income statement for such affiliated interest;

(b) A description of the products or services provided to or from the utility and each such affiliated interest or subsidiary;

(c) A description of the pricing basis or costing method, and procedures for allocating costs for such products or services, and the amount and accounts charged during the year;

(d) A description of the terms of any loans between the utility and each such affiliated interest or subsidiary and a listing of the year-end loan amounts and maximum loan amounts outstanding during the year;

(e) A description of the terms and total amount of any obligation or liability assumed by the utility for each such affiliated interest or subsidiary;

(f) A description of the activities of each such affiliated interest or subsidiary with which the utility has transactions; and

(g) A list of all common officers and directors between the gas utility and each such affiliated interest or subsidiary, along with their titles in each organization.

(3) The report required in this section supersedes the reporting requirements contained in previous commission orders authorizing affiliated interest transactions pursuant to chapter 80.16 RCW.

(4) The utility is obligated to file verified copies of affiliated interest contracts and arrangements as stated in WAC 480-90-245 (Affiliated interest—Contracts and arrangements).