Westgas Interstate, Inc.

First Revised Volume No. 1

Effective Date: 09/01/2005, Docket: RP05-478-000, Status: Effective

Original Sheet No. 46C Original Sheet No. 46C : Effective

GENERAL TERMS AND CONDITIONS

(Continued)

Where the Transporter allocates to a lower level (more

detailed) than the Shipper contract level and where:

(1) The Confirming Parties confirm at a higher level

(less detailed) than the nomination level; and,

(2) A Shipper has submitted more than one nomination

line item to the Transporter;

the Transporter should employ the Transporter’s tariff

allocation methodology (including, where applicable,

employing the other Confirming Party(ies)’ PDAs) to

allocate gas to the confirmation detail level.

The Transporter should then either:

i) accept and employ a PDA from such Shipper(s) or

ii) employ the Shipper’s rank supplied in the nomination.

Where a Transporter accepts PDAs from a Shipper (as

specified in a) above) and the Shipper does not

provide a PDA, the Transporter should employ the

tariff allocation methodology.

(f) At a location which is not covered by an OBA, a

Confirming Party should submit a PDA to the allocating

party at a level that is based on the allocating

party’s business practice, but, in no event will such

PDA be at a lower level (more detailed) than that

level of information exchanged between such parties

during their confirmation process.

(g) A PDA may not be used to allocate gas to a

nominatable transaction that was not identified in the

nomination or confirming process, as applicable,

absent prior mutual agreement among the Confirming

Parties and the party being allocated to, in such

transaction. In the event of a conflict between this

standard and the Transporter’s existing tariff or

general terms and conditions, the latter will prevail.