National Fuel Gas Supply Corporation

Fourth Revised Volume No. 1

Effective Date: 08/01/1997, Docket: RP97-398-000, Status: Effective

Original Sheet No. 437 Original Sheet No. 437 : Effective

GENERAL TERMS AND CONDITIONS

23. TRANSPORTATION AND STORAGE COST ADJUSTMENTS ("TSCA") (Cont'd.)

be determined by subtracting the Current TSCA Unit Rate

from the Current TSCA Unit Rate contained in the

immediately preceding quarterly filing hereunder; provided,

that the initial Current TSCA Unit Rates hereunder shall be

determined on the basis of the Current Transportation and

Storage Costs.

23.4Unrecovered Transportation and Storage Cost Account

(a) Seller shall establish and maintain an "Unrecovered

Transportation and Storage Cost" Account for the collection

of TSCA costs under Rate Schedule EFT as a subaccount of

Account No. 186. This Account shall be segregated between

Transportation and Storage Reservation and Commodity Costs.

Each month this Account shall be (a) debited by Seller's

actual Transportation and Storage Costs, and (b) credited

by the actual revenues received attributable to the TSCA

reflected in Seller's rates. Such credits shall be

determined by multiplying (i) the actual Reservation and

Commodity billing units under Rate Schedule EFT for the

billing month by (ii) the Current TSCA Unit Rates and TSCA

Adjustment, in effect for that month.

(b) Commencing with the effective date of this TSCA provision,

all Transportation and Storage Cost refunds received by

Seller, applicable to transportation services performed

during the period this Section 23 remains effective, shall

be credited to this Account.

debit balance) or credited (in the event of a credit

balance with interest, calculated by utilizing the

procedures set forth in Section 154.305(h) of the

Commission's Regulations on the prior month's ending

balance.