Williston Basin Interstate Pipeline Co.

Second Revised Volume No. 1

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Effective Date: 02/25/2009, Docket: RP09-259-000, Status: Effective

Fifth Revised Sheet No. 254A Fifth Revised Sheet No. 254A

Superseding: Fourth Revised Sheet No. 254A

GENERAL TERMS AND CONDITIONS (Continued)

17. FIRM CAPACITY RELEASE MECHANISM (Continued)

17.3.1 For biddable releases (1 year or less):

-- Offers should be tendered by 12 p.m. on a business day;

-- open season ends no later than 1 p.m. on a business day

(evaluation period begins at 1 p.m. during which contingency is

eliminated, determination of best bid is made, and ties are

broken);

-- evaluation period ends and award posting if no match required

at 2 p.m.;

-- match or award is communicated by 2 p.m.;

-- match response by 2:30 p.m.;

-- where match required, award posting by 3 p.m.;

-- contract issued within one hour of award posting (with a new

contract number, when applicable); nomination possible beginning

at the next available nomination cycle for the effective date of

the contract. (Central Clock Time).

For biddable releases (more than 1 year):

-- Offers should be tendered by 12 p.m. four business days before

award;

-- open season ends no later than 1 p.m. on the business day

before timely nominations are due (open season is three business

days);

-- evaluation period begins at 1 p.m. during which contingency is

eliminated, determination of best bid is made, and ties are

broken;

-- evaluation period ends and award posting if no match required

at 2 p.m.;

-- match or award is communicated by 2 p.m.;

-- match response by 2:30 p.m.;

-- where match required, award posting by 3 p.m.;

-- contract issued within one hour of award posting (with a new

contract number, when applicable); nomination possible beginning

at the next available nomination cycle for the effective date of

the contract. (Central Clock Time).

17.3.2 For non-biddable releases:

Timely Cycle

- posting of prearranged deals not subject to bid are due by

10:30 a.m.;

- contract issued within one hour of award posting (with a new

contract number, when applicable); nomination possible beginning