Section 805 - Other Gas PurchasesA. This account shall include the cost, at point of receipt by the utility, of manufactured gas, refinery gas, or any gas other than natural gas, or other than any mixed gas in which the natural gas is an important proportion of the mixture.B. The records supporting this account shall be so maintained that there shall be readily available for each vendor and each point of receipt, the kind and quantity of gas, Btu content, basis of the charges, and the amount paid for the gas.