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. 361 Original Sheet No. 361

GENERAL TERMS AND CONDITIONS

(Continued)

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

OVERRUN CHARGES AND PENALTIES (Continued)

18.1 (c) (ii) (B) (4) Provide a percentage for each transaction or aggregated

transaction at the receipt point. Such percentage will be

applied to the total measured quantity for the gas day. The

total of the percentages provided at each receipt point must

equal 100%.

Seller, in its sole judgment, may waive the 10:30 a.m. CCT

deadline under Section 18.1(c)(ii) on a non-discriminatory basis.

(C) For each gas day, Seller will use the following procedures to

allocate the measured quantities:

(1) If the receipt point operator provides Seller with PDA(s) by

upstream ID, pursuant to Section 18.1(c)(ii)(A)(1) above,

(i) Seller will first use the PDAs provided by the receipt

point operator to determine the amount to allocate to

each upstream ID,

(ii) Then, Seller will allocate among multiple contracts

consistent with Section 28.4 of the General Terms and

Conditions, and

(iii) Then, Seller will allocate among multiple transactions

within a contract by using the Buyer's provided

schedule ranks (in accordance with NAESB defined data

sets), or will allocate pro-rata if no ranks are

provided by Buyer.

(2) If the receipt point operator provides PDA(s) by contract or

nomination/package ID, pursuant to Sections 18.1(c)(ii)(A)(2)

or (3) above,

(i) Seller will first use the PDAs provided by the receipt

point operator to determine the amount to allocate to

each contract or nomination/package ID, as

appropriate, and

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

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

rata if no ranks are provided by Buyer, to allocate

among multiple transactions.

(3) If the receipt point operator provides PDA(s) by transaction,

as defined in Section 18.1(c)(ii)(A)(4) above, Seller will

use the receipt point operators PDA(s) to allocate to each

transaction.