National Fuel Gas Supply Corporation

Fourth Revised Volume No. 1

Effective Date: 04/01/2007, Docket: RP06-393-004, Status: Effective

Fourth Revised Sheet No. 73 Fourth Revised Sheet No. 73 : Effective

Superseding: Third Revised Sheet No. 73

FST RATE SCHEDULE

Firm Storage Transportation Service

3. RATE (Cont'd.)

(f) With respect to services resulting from the assignment of

capacity associated with Transporter's Rate Schedule X-58

to firm shippers of Transcontinental Gas Pipe Line

Corporation, a surcharge to Transporter's reservation and

commodity charges (set forth on Sheet No. 9 as "X-58

conversion surcharge"), applicable to services that were

converted from Mcf to Dth on the basis of 1.000 Dth per

Mcf.

3.3 Transporter will retain the percent of receipts set forth on

Sheet No. 9 as "Fuel and Company Use retention" and the percent

of receipts set forth on Sheet No. 9 as "Transportation LAUF

retention".

(a) Transporter may from time to time determine point pairs on

its system where the Fuel and Company Use retention will not

be applied to a particular transaction ("Zero Fuel Point Pair

Transactions"). Zero Fuel Point Pair Transactions will be

determined by a review of projected system flows and the

indication that on an aggregate basis no incremental Fuel or

Company Use will be required to facilitate those

transactions. Transporter will post on its Web Site point

pairs where the Fuel and Company Use retention shall be zero,

the quantity eligible for such treatment, and the term of

such eligibility. To the extent that more requests for Zero

Fuel Point Pair Transaction capacity are received than

Transporter has eligible capacity, such capacity will be

awarded pursuant to Section 13.2 of the General Terms and

Conditions. If Transporter later determines that incremental

Fuel and Company Use is required to facilitate a transaction

that had previously been identified as not requiring

incremental Fuel and Company Use, Transporter will post such

information to its Web Site and will require Fuel and Company

Use reimbursement on a going forward basis; provided,

however, Transporter will continue to honor any Zero Fuel

Point Pair Transactions with respect to primary receipt and

delivery points for the shorter of (a) the term of the

commitment as posted on Transporter's Web Site or (b) the

primary term of Shipper's service agreement