Northern Natural Gas Company

Fifth Revised Volume No. 1

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Effective Date: 04/17/2000, Docket: RP09-455-000, Status: Pending

Original Sheet No. 257A Original Sheet No. 257A





The Timely and Evening Nomination Cycles pertain to transportation for the

upcoming gas day. The Intraday 1 and Intraday 2 Nomination Cycles pertain to

the current gas day. Together the Timely, Evening, Intraday 1 and Intraday 2

Nomination Cycles shall be referred to as the grid-wide synchronization

times. Northern will process nominations in addition to the grid-wide

synchronization times subject to the additional Intraday nomination

subsection herein, and accordingly Northern is not required to hold capacity

for grid-wide nominations until a standard nomination cycle. However,

Northern, on a best-efforts basis, will make capacity available at an allocated

group in an amount equal to the primary to primary firm entitlement that was cut

during the Timely cycle due to inadvertent mismatches between the upstream or

downstream quantity, location, contract number, or DUNS number. Capacity will not

be made available at specific receipt or delivery points (including pipeline

interconnects). The capacity that will be made available will be associated only

with the takeaway from Demarc Pool and Ventura Pool and from the Demarc deferred,

Ogden deferred and Ventura deferred delivery points. If a mismatch occurs in a

pool that is not linked directly to a transportation nomination (i.e. pooling

transactions), Northern will not make such capacity available. Capacity will only

be made available for corrections to be made in the subsequent Evening cycle.

Further, Northern will make available up to 50,000 Dth/day for the first two gas

days of the month, and up to 25,000 Dth/day for the remainder of the month, unless

Northern posts a lower limit on its website. Such capacity will be allocated

pro-rata during the Evening cycle. Bumping will only be permitted during the

Evening and Intraday 1 Nomination Cycles.