GENERAL TERMS AND CONDITIONS
                       (Continued)


5.      PRIORITY, INTERRUPTION OF SERVICE AND OPERATIONAL FLOW
ORDERS


        5.1    Priority of Service.  Any Customer executing a
Storage Service Agreement with TRES PALACIOS shall be entitled to
the storage, parking, wheeling, or loaning of Gas in the following
order of declining priority:


           (a) (i) Firm Storage Services at primary Point(s) of
Receipt, not in excess of MDRQ, and at primary Point(s) of
Delivery, not in excess of MDDQ, or (ii) for constraints that
develop after Gas is scheduled, Firm Storage Services at secondary
Point(s) of Receipt or Delivery and Firm Storage Services at
primary Point(s) of Receipt in excess of MDRQ, but less than or
equal to MDIQ, and Firm Storage Services at primary Point(s) of
Delivery, in excess of MDDQ but less than or equal to MDWQ.


           (b) For constraints that develop before Gas is
scheduled, Firm Storage Services at secondary Point(s) of Receipt
or Delivery and Firm Storage Services at primary Point(s) of
Receipt, in excess of MDRQ but less than or equal to MDIQ, and
Firm Storage Services at primary Point(s) of Delivery, in excess
of MDDQ but less than or equal to MDWQ.


           (c) Interruptible service, including storage, parking,
wheeling, and/or loaning pursuant to Section 5.2 below.


           (d) Make-up volumes to correct prior variances between
(i) Transporter and the counterparty to a balancing agreement
(pursuant to such agreement), (ii) Customer and TRES PALACIOS, and
(iii) Customer and Transporter if the variance was due to TRES
PALACIOS' failure to receive or deliver Customer's scheduled
volumes.


           (e) Extended injections for firm service in excess of
MDRQ/24 or extended withdrawals for firm service in excess of
MDDQ/24.


If a capacity constraint is anticipated or planned (for example,
due to system maintenance), TRES PALACIOS shall post a notice of
the anticipated constraint on its Internet Web Site at least 48
hours in advance of the start of the constraint period.


           5.2 The order of priority relating to service under
Rate Schedules ISS, IHBS, IP, IW, and IL shall be allocated to
each Customer on a pro rata basis.