Transcontinental Gas Pipe Line Company, LLC

Fourth Revised Volume No. 1

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Effective Date: 12/31/2008, Docket: RP09-158-000, Status: Effective

Original Sheet No. 359 Original Sheet No. 359

GENERAL TERMS AND CONDITIONS

(Continued)

18. DETERMINATION OF DELIVERIES AND RECEIPTS, ALLOWABLE DAILY DISPATCHING VARIATIONS,

OVERRUN CHARGES AND PENALTIES (Continued)

18.1 (a) (iv) (C) (2) If the delivery point operator provides Seller with PDAs and

limit values by contract or nomination/package ID, pursuant to

Section 18.1(a)(ii)(B) or (C) above:

(i) Seller will first use the PDAs and limit values

provided by the delivery point operator to determine

the amount to allocate to each contract or

nomination/package ID, as applicable, and

(ii) Then, Seller will use Buyer's provided schedule ranks

(in accordance with NAESB defined data sets), or will

allocate pro-rata if no ranks are provided by Buyer, to

allocate among multiple transactions.

(3) If the delivery point operator provides Seller with PDAs and

limit values at the transaction level, pursuant to Section

18.1(a)(ii)(D) above, Seller will use such PDAs and limit

values provided by the delivery point operator to determine

the amount to allocate to each transaction.

(v) Prior-period adjustments to scheduled quantities and PDAs shall be

permitted by Seller only if all parties affected by the resulting prior

period reallocation (including Seller) consent in writing to the

adjustment; provided, however, Seller shall not unreasonably withhold

such consent.

(b) Determination of Receipts and Deliveries at Pipeline Interconnects

Each interconnecting interstate or intrastate pipeline receipt point operator

that delivers gas into or receives gas from Seller's system shall either:

(i) Have an executed OBA or equivalent in effect with Seller with provisions

for allocating the difference between scheduled and measured quantities

at the interconnect point(s). OBA's that have been suspended shall not

be considered to be in effect for purposes of this section, and the

measured quantity shall be allocated pro-rata among Buyers based upon

the scheduled quantity; or

(ii) In the absence of such executed OBA in effect, the measured quantity

shall be allocated pro-rata among Buyers based upon the scheduled

quantity; provided however, quantities will be allocated to scheduled

displacement transactions prior to scheduled non-displacement

transactions.

Prior period adjustments to scheduled quantities and/or the allocation

method as defined in Section 18.1(b)(i) and 18.1(b)(ii) above shall be

permitted by Seller only if all parties affected by the resulting prior

period reallocation (including Seller) consent in writing to the

adjustment; provided, however, Seller shall not unreasonably withhold

such consent.