Wyoming Interstate Company, Ltd.

Second Revised Volume No. 2

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Effective Date: 12/01/2009, Docket: RP10-103-000, Status: Suspended

Twenty-Fifth Revised Sheet No. 4C Twenty-Fifth Revised Sheet No. 4C

Superseding: Twenty-Fourth Revised Sheet No. 4C

SCHEDULE OF RATES TO BE CHARGED

RATES PER DTH

--------------------------------

Current

Particulars Reimbursement True-up Total

----------- ------------- ---------- -----

Mainline System

Fuel Gas Percentage (Note 3)............................ 0.78% 0.28% 1.06%

L&U Percentage (Note 3)................................. 0.15% -0.01% 0.14%

----- ------ -----

Total FL&U Percentage................................... 0.93% 0.27% 1.20%

L&U Percentage (Note 11)................................ 0.15% -0.01% 0.14%

Powder River Incremental

Fuel Gas Percentage (Note 3) (Note 4)................... 1.18% 0.21% 1.39%

L&U Percentage (Note 3) (Note 4)........................ 0.15% 0.01% 0.16%

----- ------ -----

Total FL&U Percentage................................... 1.33% 0.22% 1.55%

L&U Percentage (Note 11)................................ 0.15% 0.01% 0.16%

Medicine Bow Incremental

Fuel Gas Percentage (Note 3) (Note 6)................... 0.36% 0.01% 0.37%

L&U Percentage (Note 3) (Note 6)........................ 0.15% -0.01% 0.14%

----- ------ -----

Total FL&U Percentage................................... 0.51% 0.00% 0.51%

L&U Percentage (Note 11)................................ 0.15% -0.01% 0.14%

Echo Springs Incremental

Fuel Gas Percentage (Note 3) (Note 8)................... 0.80% 0.38% 1.18%

L&U Percentage (Note 3) (Note 8)........................ 0.00% 0.00% 0.00%

----- ------ -----

Total FL&U Percentage................................... 0.80% 0.38% 1.18%

L&U Percentage (Note 11)................................ 0.00% 0.00% 0.00%