Loading...
HomeMy WebLinkAboutIGC-PGA-APP.pdfEXECUTIVE OFFICES INTERMOUNTAIN GAS COMPANY 555 SOUTH COLE ROAD. P.O. BOX 7608 . BOISE, IDAHO 83707 . (208) 377-6000 . FAX: 377-6097 May 23 2001 Ms. Jean Jewell Commission Secretary Idaho Public Utilities Commission 472 W. Washington St. P. O. Box 83720 Boise , 10 83720-0074 RE:Intermountain Gas Company Case No. INT-02- Dear Ms. Jewell: Enclosed for filing with this Commission is an original signed copy of Intermountain Gas Company s Application and supporting Workpapers for Authority to Decrease Its Prices on July 1 2002. Intermountain is also filing this Application electronically with the Commission. Please acknowledge receipt of this filing by stamping and returning a photocopy of this Application cover letter to us. If you have any questions or require additional information regarding the attached , please contact me at 377-6168. ve~ Zl P. McGrath Director Market Services and Regulatory Affairs MPM/slk Enclosures cc:W. C. Glynn J. K. lebens N. C. Hedemark M. E. Huntington P. R. Powell M. W. Richards, Jr. RECEIVED Thursday, 23 May, 2002 02:45:59 PM IDAHO PUBLIC UTILITIES COMMISSION INTERMOUNTAIN GAS COMPANY CASE NO. INT-02- APPLICATION, EXHIBITS, AND WORKP APERS In the Matter of the Application of INTERMOUNTAIN GAS COMPANY for Authority to Decrease Its Prices on July 1, 2002 (July 1, 2002 Purchased Gas Cost Adjustment Filing) RECEIVED Thursday, 23 May, 2002 02:45:59 PM IDAHO PUBLIC UTILITIES COMMISSION Morgan W. Richards, Jr. MOFFATT, THOMAS, BARRETT, ROCK & FIELDS, CHARTERED PO Box 829, Boise, Idaho 83701 Telephone (208) 345-2000 MTBR&F 11-500.310 Attorneys for Intennountain Gas Company BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION In the Matter of the Application of INTERMOUNTAIN GAS COMPANY for Authority to Decrease Its Prices Case No. INT-02- APPLICATION Intennountain Gas Company ("Intennountain"), an Idaho corporation with general offices located at 555 South Cole Road, Boise, Idaho, hereby requests authority, pursuant to Idaho Code Sections 61-307 and 61-622, to place in effect July 1 , 2002 new rate schedules which will decrease its annualized revenues by $52.5 million, pursuant to the Rules of Procedure of the Idaho Public Utilities Commission ("Commission ). Because of changes in Intennountain's gas related costs, as described more fully in this Application, Intennountain s earnings will not be effected as a result of the proposed decrease in prices and revenues. Intennountain's current rate schedules showing the proposed decreases are attached hereto as Exhibit No.1 and are incorporated herein by reference. Intennountain's proposed rate schedules are attached hereto as Exhibit No.2 and are incorporated herein by reference. Communications in reference to this Application should be addressed to: Michael E. Huntington Vice President - Marketing & External Affairs Intennountain Gas Company, Post Office Box 7608, Boise, ID 83707 and Morgan W. Richards, Jr. Moffatt, Thomas, Barrett, Rock & Fields, Chartered Post Office Box 829, Boise, ID 83701 In support of this Application, Intennountain does allege and state as follows: APPLICATION - 2 Intennountain is a gas utility, subject to the jurisdiction of the Idaho Public Utilities Commission, engaged in the sale of and distribution of natural gas within the State of Idaho under authority of Commission Certificate No. 219 issued December 2, 1955, as amended and supplemented by Order No. 6564, dated October 3, 1962. Intennountain provides natural gas service to the following Idaho communities and counties and adjoining areas: Ada County - Boise, Eagle, Garden City, Kuna, Meridian, and Star; Bannock County - Chubbuck, Inkom, Lava Hot Springs, McCammon, and Pocatello; Bear Lake County - Georgetown, and Montpelier; Bingham County - Aberdeen, Basalt, Blackfoot, Firth, Fort Hall, Moreland/Riverside, and Shelly; Blaine County - Bellevue, Hailey, Ketchum, and Sun Valley; Bonneville County - Ammon, Idaho Falls, Iona, and Ucon; Canyon County - Caldwell, Greenleaf, Middleton, Nampa, Parma, and Wilder; Caribou County - Bancroft, Conda, Grace, and Soda Springs; Cassia County - Burley, Declo, Malta, and Raft River; Elmore County - Glenns Ferry, Hammett, and Mountain Home; Fremont County - Parker, and St. Anthony; Gem County - Emmett; Gooding County - Gooding, and Wendell; Jefferson County - Lewisville, Menan, Rigby, and Ririe; Jerome County - Jerome; Lincoln County - Shoshone; Madison County - Rexburg, and Sugar City; Minidoka County - Heyburn, Paul, and Rupert; Owyhee County - Bruneau, Homedale; Payette County - Fruitland, New Plymouth, and Payette; Power County - American Falls; Twin Falls County - Buhl, Filer, Hansen, Kimberly, Murtaugh, and Twin Falls; Washington County - Weiser. Intennountain's properties in these locations consist of transmission pipelines, a compressor station, a liquefied natural gas storage facility, distribution mains, services, meters and regulators and general plant and equipment. II. Intennountain seeks with this Application to pass through to each of its customer classes a decrease in gas related costs resulting from: 1) a net decrease in costs for Intennountain's natural gas interstate transportation, 2) an updated customer allocation of gas related costs pursuant to the Company s Purchased Gas Cost Adjustment provision, and 3) the inclusion of temporary surcharges and credits for one year relating to gas and interstate transportation costs from APPLICATION - 3 Intennountain's deferred gas cost account. Intennountain also seeks with this Application eliminate the temporary surcharges and credits included in its current prices during the past months, pursuant to Case No. INT-01-3. The aforementioned changes would result in an overall price decrease to Intennountain's RS-, RS-, GS-, LV-, T-1 and T-2 customers. These price changes are applicable to service rendered under rate schedules affected by and subject to Intennountain s Purchased Gas Cost Adjustment ("PGA"), approved by this Commission in Order No. 26019, Case No. INT-95- Exhibit No.4 summarizes the price changes in: 1) Intennountain's base rate gas costs and its rate class allocation, and 2) adjusting temporary surcharges or credits flowing through to Intennountain's direct sales and transportation customers. Exhibit No.4 is attached hereto and incorporated herein by reference. III. The current prices of Intennountain are those approved by this Commission in Order No. 28783 , Case No. INT-01- IV. Intennountain s proposed prices incorporate all price changes impacting Intennountain Interstate Capacity including, but not limited to, prices charged by Williams Gas Pipeline - West Williams" or "Northwest") tariffs which have transpired since Intennountain s last PGA filing in Case No. INT-01-3. Exhibit No., Lines 1 through 32, details the proposed decrease in Intennountain s prices resulting from Intennountain s natural gas interstate transportation and storage costs. The Weighted Average Cost of Gas ("W ACOG") reflected in Intennountain s proposed prices is $0.35295 per thenn, as shown on Exhibit No., Lines 26 through 29, Column (t). This is the same WACOG recently approved by this Commission as part of Case No. INT-01- Order No. 28783. Current market based commodity prices support the continuance of the $0.35295 per thenn W ACOG to Intennountain s customers. The PGA mechanism established with this Commission has been instrumental in providing Intennountain, on behalf of its customers, the needed flexibility to patiently await, and then lock or hedge, natural gas prices driven by market fundamentals rather than the vagaries of the natural gas futures market. Intennountain Gas Company continues to be vigilant in managing APPLICATION - 4 its gas supplies and storage agreements and is party to certain natural gas hedging transactions that will afford its customers savings over the next twelve (12) month period as compared to the $0.35295 per thenn W ACOG. Intennountain strongly supports long-tenn price stability for its customers and incorporates a price stability criterion when managing its gas supplies. Natural gas futures prices portend an upward trend for future PGA periods as depicted on Exhibit No.5. While there is no assurance that this will be the case, Intennountain believes that market fundamentals will not support the future price levels shown on Exhibit No., and continues to rely strongly on the supply and demand fundamentals that should result in natural gas prices at a lower price range. Intennountain believes that by allowing the W ACOG to remain at the $0.35295 per thenn level, a price increase can be avoided, or at a minimum mitigated, during the July 2003 PGA period (1 year from today) by offsetting future increases with the savings generated by Intennountain s currently hedged supplies. Intennountain continues to be vigilant in monitoring and managing the prices paid pursuant to the contracts with its suppliers. Intennountain intends to file an "out of period" PGA if natural gas prices decline substantially to a level that facilitates price stability for the future with the pass through of any deferred gas cost credits that may exist at the time. Exhibit No.5 is attached hereto and incorporated herein by reference. VI. Pursuant to Case No. INT-01-, Intennountain has included temporary surcharges and credits in its July 1 , 2001 prices for the principal reason of collecting or passing back to its customers deferred gas cost charges and benefits, as outlined in Case No. INT-01-3. Line 34 of Exhibit No.4 reflects the elimination of these temporary surcharges and credits. VII. Intennountain's PGA tariff, approved in Order No. 26019, Case No. INT-95-, includes provisions whereby Intennountain s proposed prices will be adjusted for updated customer class sales volumes and purchased gas cost allocations, pursuant to the Company s approved cost of service methodology. Intennountain s proposed prices include a fixed cost collection adjustment pursuant to these PGA provisions, as outlined on Exhibit No., Line 25. The price reduction resulting from this adjustment is included on Exhibit No., Line No. 35. Exhibit No.6 is attached hereto and incorporated herein by reference. APPLICATION - 5 VIII. Intermountain is party to certain agreements whereby Intennountain has released segmented portions of its finn capacity rights when not needed to meet its customer needs, and proposes to pass back to its customers the benefits generated from the capacity release agreements, totaling $2.4million. Exhibit No., Line 1 , reflects the inclusion of the $2.4 million credit. Intennountain proposes to pass back this amount via the per thenn credit as detailed on Exhibit No.8. Exhibit No.s 7 and 8 are attached hereto and incorporated herein by reference. IX. On July 26 2001 , Northwest submitted its Compliance Filing in Federal Energy Regulatory Commission s ("FERC") Docket No. RP95-409. The Compliance Filing indicated that Northwest would be preparing refunds consistent with the Compliance Filing and that Northwest intended to issue the refunds by August 31 , 2001. Intennountain Gas Company received $3.3 Million from Northwest pursuant to the Compliance Filing. The rates at issue in the RP95-409 Case were effective for a locked-in period of 13 months from February 1 , 1996 through February 28, 1997. Several of Intennountain Gas Company s industrial customers that received finn transportation service from Intennountain during this 13 month period have since migrated to Intennountain s T- and T-4 service. Intennountain proposes to refund an allocated portion of the $3.3 million, or $0. million, directly to Intennountain's LV-, T-, T-, T-3 and T-4 customers to reimburse these customers for overpayment's made during the locked-in period via a credit on the industrial customer s bill. The allocated portion is reflective of the fixed cost responsibility assigned to Intennountain's customers during the locked-in period. Intennountain proposes to pass back to its RS-, RS- 2, and GS-1 customers a refund amount generated from Northwest's Case No. RP95-409, totaling $2.4 million. Exhibit No., Line 2 reflects the inclusion of the $2.4 million refund. Intennountain proposes to pass back this amount via the per thenn credit as detailed on Exhibit No.9. Exhibit No.9 is attached hereto and incorporated herein by reference. APPLICATION - 6 In compliance with the Federal Energy Regulatory Commission s Orders in Docket No. RP93-5 and in conformity with Part 154 ofFERC's regulations, Northwest was directed to impose surcharges resulting from excess refunds made during the period April 1, 1993 through October 31 1994. Intennountain Gas Company was surcharged $1.2 Million from Northwest pursuant to Docket No. RP93-5. Several of Intennountain Gas Company s industrial customers that received finn transportation service from Intennountain during this April 1, 1993 through October 31, 1994 period, and received a portion of the excess refunds, have since migrated to Intennountain s T - 3 and 4 service. Intennountain proposes to charge an allocated portion of the $1.2 million, or $0. million, directly to Intennountain s LV-, T-, T-, T-3 and T-4 customers via a surcharge on the industrial customer s bilL The allocation of this surcharge to all customer classes is reflective of the refunds originally made pursuant to Docket No. RP93-5 which were included in Intennoutain' IPUC Case No. INT-98- Intennountain proposes to collect from its RS-, RS-, and GS-1 customers a surcharge amount generated from Northwest's Case No. RP93-5 totaling $0.9 million. Exhibit No., Line 3 reflects the inclusion of the $0.9 million surcharge. Intennountain proposes to collect this amount via the per thenn surcharge as detailed on Exhibit No. 10. Exhibit No. 10 is attached hereto and incorporated herein by reference. XI. Intennountain proposes to allocate deferred gas costs from its Account No. 186 balance to its customers through temporary price adjustments effective during the 12-month period ending June 30, 2003, as follows: 1) Intennountain has been deferring in its Account No. 186 fixed gas costs. The debit shown on Exhibit No. 11 , Line 11 , Cot (b) of $116 073 is predominantly attributable to the collection of interstate pipeline capacity costs and the true-up of expense issues previously ruled on by this Commission. Intennountain proposes to collect or pass back these balances via the per therm surcharges and credits, as detailed on Exhibit No. 11 and included on Exhibit No., Line 4. Exhibit No. 11 is attached hereto and incorporated herein by reference. Intennountain has been deferring in its Account No. 186 amounts representing unamortized variable gas costs from Case No. INT-01-3. Intennountain s Account No. 186 balance estimated at June 30, 2002 includes a debit balance of $470 959 pursuant to these APPLICATION - 7 unamortized amounts, as shown on Exhibit No. 12, Lines 2-, Col. (b). Intennountain proposes to collect this debit balance via the per thenn surcharge, as shown on Exhibit No. 12 and included on Exhibit No., Line 5. Exhibit No. 12 is attached hereto and incorporated herein by reference. 3) Intennountain has been deferring in its Account No. 186 deferred gas cost credits of 766 014 (Exhibit No. 12, Lines 5-, Col. (b)J, attributable to Intennountain s variable gas cost collection since July 1 , 2001. In it's Order No. 28783, Case No. INT-01-, the Commission directed Intennountain Gas Company to continue to defer on its books $3 505 756 in spot market purchases until the next PGA tracker. The Commission Staff has completed its investigation of these purchases and the amount has been included for collection in the deferred credit noted above. Intennountain's gas supply management efforts were instrumental in securing supplies below the W ACOG embedded in its tariffs resulting in the overall credit shown above. Intennountain proposes to pass back the $6 766 014 credit balance via a per thenn credit, as shown on Exhibit No. 12 and included on Exhibit No., Line 5. XII. Intennountain has allocated the proposed price decrease to each of its customer classes based upon Intennountain's PGA provision. A straight cents per thenn price decrease was not utilized for the T -1 tariff. No fixed costs are currently recovered in the tail block of Intennountain T -1 tariff. Absent Williams ' finn transportation TF -1 Commodity Charge, the proposed decrease in the T -1 tariff is fixed cost related, and therefore, a cents per thenn decrease was made only to the first two blocks ofthe tariff for these fixed costs. XIII. The proposed decrease in the T -2 tariff is fixed cost related, and therefore, a cents per therm decrease was made only to the T-2 demand charge for these fixed costs. XIV. Exhibit No. 13 is an analysis of the overall price decrease by class of customer. Exhibit No. 13 is attached hereto and incorporated herein by reference. APPLICATION - 8 xv. The proposed overall price decrease herein requested among the classes of service of Intennountain will not affect Intennountain's earnings, and is just, fair, and equitable. XVI. This Application is filed pursuant to the applicable statutes and the Rules and Regulations of the Commission. This Application has been brought to the attention of Intennountain s customers through a Customer Notice and by a Press Release sent to daily and weekly newspapers, and major radio and television stations in Intennountain's service area. The Press Release and Customer Notice are attached hereto and incorporated herein by reference. Copies of this Application, its Exhibits and Workpapers have been provided to those parties regularly intervening in Intennountain s rate proceedings. XVII. Intennountain requests that this matter be handled under modified procedure pursuant to Rules 201-204 ofthe Commission s Rules of Procedure. Intennountain stands ready for immediate consideration ofthis matter. APPLICATION - 9 WHEREFORE, Intennountain respectfully petitions the Idaho Public Utilities Commission as follows: a. That the proposed rate schedules herewith submitted as Exhibit No.2 be approved without suspension and made effective as of July 1 , 2002 in the manner shown on Exhibit No. That this Application be heard and acted upon without hearing under modified procedure, and C. For such other relief as this Commission may determine proper herein. DATED at Boise, Idaho, this 23rd day of May, 2002. INTERMOUNTAIN GAS COMPANY MOFFATT, THOMAS, BARRETT, ROCK & FIELDS , CHARTERED By l\~k-L~ ~~~iJ."C? Michael E. Huntington Vice President Marketing & External Affairs By \J, Morgan W. Ri ards, Jr. Of the Finn Attorneys for Intennountain Gas Company ~L- APPLICATION - 10 CERTIFICATE OF MAILING I HEREBY CERTIFY that on this 23rd day of May, 2002, I served a copy of the foregoing Case No. INT -02- upon: Lisa Nordstrom Deputy Attorney General Idaho Public Utilities Commission 472 W. Washington St., PO Box 83720 Boise, ID 83720-0074 R. Scott Pasley J. R. Simplot Company PO Box 27 Boise, ID 83707 ConleyE. Ward, Jr. Givens, Pursley, Webb & Huntley 277 N. 6th St., Suite 200 PO Box 2720 Boise, ID 83701 Wendell M. Phillips 615 South Phillippi Street Boise, ID 83705 Edward A. Finklea Paula E. Pyron Energy Advocates LLP 526 NW 18 Avenue Portland, OR 97209 David Hawk J. R. Simplot Company PO Box 27 Boise, ID 83707 Paula Pyron Northwest Industrial Gas Users 4113 Wolf Berry Court Lake Oswego, OR 97035 by depositing true copies thereof in the United States Mail, postage prepaid, in envelopes addressed to said persons at the above addresses. APPLICATION - :r -?F= ector Market Services and Regulatory Affairs EXHIBIT NO. CASE NO. INT-02- INTERMOUNTAIN GAS COMPANY CURRENT TARIFFS Showing Proposed Price Changes (8 pages) COMPARISON OF JULY 16, 2001 PRICES TO PROPOSED JULY 1, 2002 PRICES Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 1 of 8 July 16,2001 ProposedLinePricesProposedJuly 1, 2002 No.Rate Class INT-01-Adjustment Prices (a)(b)(c)(d) RS- April - November 94975 $ (0.20818)74157 December - March 83719 (0.20818)62901 RS- April - November 81517 (0.20524)60993December - March 78154 (0.20524)57630 GS- April - November Block 1 83797 (0.20419)63378 Block 2 81624 (0.20419)61205 Block 3 79522 (0.20419)0.59103 December - March Block 1 78712 (0.20419)58293 Block 2 76592 (0.20419)0.56173 Block 3 74546 (0.20419)54127CNG Fuel 74546 (0.20419)54127 LV-l (1) Block 1 64497 (0.20237) 2 0.44260 Block 2 60648 (0.20237) 3 0.40411 Block 3 0.53086 (0.19603) 4 33483 Block 1 12482 (0.00634) 2 0.11848 Block 2 08633 (0.00634) 3 07999 Block 3 01071 00000 4 01071 Ammonia 02525 00000 02525 Demand Block 1 60887 (0.07038)1.53849 Demand Block 2 80729 (0.07038)73691Commodity Charge 00656 00000 00656Over-Run Service 04915 00000 04915 I The LV -1 Adjustment is calculated by taking Line 22 - 24, Col ( c), minus the variable temporary from INT-01-, plus the variable temporary on Exhibit 1'Z, Line 8, Col (b)2 See Workpaper No., Line 13, Co! (e)3 See Workpaper No., Line 20, Col (e) 4 See Workpaper No., Line 21, Col (e) I.P.C. Gas Tariff Second Revised Volume No. (Supersedes First Revised Volume No. Thirt second Third Revised eet No. 01 (Page 1 of 1) Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 2 of 8Name of Utility Intermountain Gas Company . IDAHO PUBLIC UTILITIES COMMISSIONAPPROVED EFFECTIVE Rate Schedule RS- RESIDENTIAL SERVICE Jlll.16 '------;Jt!I:--i ~.... - "'. .;1';:,~~ 1f-1f1~ SECRETARY AVAILABILITY: Available to individually metered consumers not otherwise specifically provided for, using natural gas for residential purposes. RATE: Monthly minimum charge is the customer charge. For billing periods ending April through November Customer Charge - $2.50 per bill $0.74157 Commodity Charge - $0. 9~97S per therrn* For billing periods ending December through March Customer Charge - $6.50 per bill $0.62901 Commodity Charge - $0.83719 per therrn* *Includes: $ (0.03915) Temporary purchased gas cost adjustment of $0 .16~16 Weighted average cost of gas of $0.35295 PURCHASED GAS COST ADJUSTMENT: This tariff is subject to an adjustment for cost of purchased gas as provided for in the Company's Purchased Gas Cost Adjustment Provision. SERVICE CONDITIONS: All natural gas service hereunder is subject to the General ServiceProvisions of the Company I s Tariff, of which this rate schedule is a part. Issued by: Intermountain Gas Company By: Michael E. Huntington Title: Effective: July 1 e, 2001 July 1 , 2002 Vice President - Marketing and External Affairs I.P.C. Gas Tariff Second Revised Volume No. (Supersedes First Revised Volume No.Thirty Socond Third Revised Sheet No. Name of Utility 02 (Page 1 of 1) Intermountain Gas Company Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 3 of 8 IDAHO PUBLIC UTILITIES COMMISSIONAPPROVED EFFECTIVE JtJllo'OI ~u"L16' \'..., - "'- 01;;,;;~ ~1fJ.~ SECREI'ARY Rate Schedule RS- MULTIPLE USE RESIDENTIAL SERVICE AVAILABILITY: Available to individually metered consumers using gas forresidential purposes including both water heating and space heating.several RATE: Monthly minimum charge is the customer charge. For billing periods ending April through November Customer Charge - $2.50 per bill $0.60993 Commodity Charge - $9.81517 per the~* For billing periods ending December through March Customer Charge - $6.50 per bill $0.57630 Commodity Charge - $0. 7815i per the~* *Includes: $ (0.03839) Temporary purchased gas cost adjustment of $9.16159 Weighted average cost of gas of $0.35295 PURCHASED GAS COST ADJUSTMENT: This tariff is subject to an adjustment for cost of purchased gas as provided for in the Company's Purchased Gas Cost Adjustment Provision. SERVICE CONDITIONS: All natural gas service hereunder is subject to the General ServiceProvisions of the Company I s Tariff, of which this rate schedule is a part. Issued by: Intermountain Gas Company By: Michael E. Huntington Title:Effective: July 1 e, 2901 July 1 , 2002 Vice President - Marketing and External Affairs I.P.C. Gas Tariff Second Revised Volume No. (Supersedes First Revised Volume No.Thirty~ Fifth Revised Sheet No. 03 Name of Utility (Page 1 of 2) Intermountain Gas Company Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 4 of 8 IDAHO PUBLIC UTILITIES COMMISSIONAPPROVED EFFECTIVE JJl..16 '61 .)u':.. 16 ' ~...... - "'. OI\:,\:") ~1fJ.~ SECRETARY Rate Schedule GS- GENERAL SERVICE AVAILABILITY: Available to individually metered customers whose requirements for natural gas do not exceed 2,000 theDms per day, at any point on Company's distributionsystem. Requirements in excess of 2,000 theDms per day may be served underthis rate schedule upon execution of a one-year written service contract. RATE: Monthly minimum charge is the customer charge. For billing periods ending April through November Customer Charge - $2.00 per bill Commodity Charge - First 200 theDms per bill ~ $0.83797Next 1,800 theDms per bill ~ $0.81624Over 2,000 theDms per bill ~ $0.79522 $0.63378* $0.61205* $0.59103* For billing periods ending December through March CUstomer Charge - $9.50 per bill Commodity Charge - First 200 theDms per bill ~ $0.78712Next 1,800 theDms per bill ~ $0.76592Over 2,000 theDms per bill ~ $0.74516 $0.58293* $0.56173* $0.54127* *Includes: Temporary purchased gas cost adjustment of $0.16038 Weighted average cost of gas of $0.35295 $(0.03877) Issued by: Intermountain Gas Company By: Michael E. Huntington Title:Effective: July 16, 2001 July 1 , 2002 Vice President - Marketing and External Affairs I.P.C. Gas Tariff Second Revised Volume No. (Supersedes First Revised Volume No.Thirty~ Fifth Revised Sheet No. 03 Name of Utility (Page 2 of 2) Intermountain Gas Company Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 5 of 8 IDAHO PUBLIC UTILITIES COMMISSIONAPPROVED EFFECTIVE :JL 16 '81 v " 16 ' \""". 0"" ..,';;,~~ t--1fJ.~ SECRETARY Rate Schedule GS- GENERAL SERVICE (Continued) For separately metered deliveries of gas utilized solely as CompressedNatural Gas Fuel in vehicular internal combustion engines. Customer Charge - $9.50 per bill $0.54127 Commodi ty Charge - $ 9 . 7 t 5 t 6 per the~* *Includes: Temporary purchased gas cost adjustment of $0.16938 Weighted average cost of gas of $0.35295 $ (0.03877) PURCHASED GAS COST ADJUSTMENT: This tariff is subject to an adjustment for cost of purchased gas asprovided for in the Company's Purchased Gas Cost Adjustment Provision. SERVICE CONDITIONS: 1. Any GS-1 customer who leaves the GS-1 service will pay to Inte~ountainGas Company, upon exiting the GS-1 service, all gas and transportationrelated costs incurred to serve the customer during the GS-1 serviceperiod not borne by the customer during the time the customer was using GS-1 service. Any GS-1 customer who leaves the GS-1 service will have refunded to them, upon exiting the GS-service, any excess gascommodity or transportation payments made by the customer during thetime they were a GS-1 customer. 2. All natural gas service hereunder is subject to the General ServiceProvisions of the Company's Tariff, of which this rate schedule is apart. Issued by: Intermountain Gas Company By: Michael E. Huntington Title: Effective: July 1 e, 2001 July 1 , 2002 Vice President - Marketing and External Affairs I.P.C. Gas Tariff Second Revised Volume No. (Supersedes First Revised Volume No. Fo Second Third Revised Sheet No. 04 (Page 1 of Name of Utili Intermountain Gas Com an Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 6 of 8 IDAHO PUBLIC UTILITIES COMMISSIONAPPROVED EFFECTIVE JUl1o '8t u'UL 16 ' \""" - '\). OI\:I';;~ t--1fJ.~ SECRETARY Rate Schedule LV- LARGE VOLUME FIRM SALES SERVICE AVAILABILITY: Available at any mutually agreeable delivery point on the Company'distribution system to any existing customer receiving service under the Company' rate schedules LV-l, T-l, or T-2, or any new customer whose usage does not exceed500,000 therms annually, upon execution of a one-year minimum written servicecontract for firm sales service in excess of 200,000 therms per year. MONTHLY RATE: Commodi ty Charge: First 250,000 therms per bill ~ $O.6ii97* $0.44260*Next 500,000 therms per bill ~ $O.696i8* $0.40411*Amount Over 750,000 therms per bill ~ $0.53086 ** $0.33483** The above prices include weighted average cost of gas of $0.35295 Includes temporary purchased gas cost adjustment of $0.16819 $ (0.02944) ** Includes temporary purchased gas cost adjustment of $0.17130 $(0.02473) PURCHASED GAS COST ADJUSTMENT (PGA): This tariff is subject to an adjustment for cost of purchased gas as provided for in the Company's Purchased Gas Cost Adjustment Provision. SERVICE CONDITIONS: 1. All natural gas service hereunder is subject to the General ServiceProvisions of the Company's Tariff, of which this Rate Schedule is a part.2. Any LV-1 customer who exits the LV-1 service at any time (including, butnot limited to, the expiration of the contract term) will pay to Intermountain GasCompany, upon exiting the LV-1 service, all gas and/or interstate transportationrelated costs to serve the customer during the LV-1 contract period not borne bythe customer during the LV-1 contract period. Any LV-customer will haverefunded to them, upon exiting the LV-1 service, any excess gas and/or interstatetransportation related payments made by the customer during the LV-contractperiod.3. In the event that total deliveries to any customer within the last three contract periods met or exceeded the 200,000 therm threshold, but the customerduring the current contract period used less than the contract minimum of 200, 000therms, an additional amount shall be billed. The additional amount shall becalculated by billing the deficit usage below 200,000 therms at the T-l Block 1rate. The customer'future eligibility for the LV-1 Rate Schedule will berenegotia ted wi th the Company. Issued by: Intermountain Gas Company By: Michael E. Huntington Title:Effective: JlIly 18, 2001 July 1 , 2002 Vice President - Marketing and External Affairs I.P.C. Gas Tariff Second Revised Volume No. (Supersedes First Revised Volume No. Twen €igAtR Ninth Revised Sheet No. 05 Name of Utili (Page 1 of 2 Intermountain Gas Compan Exhibit NO. Case No. INT-02- Intermountain Gas Company Page 7 of 8 IDAHO PUBLIC UTILITIES COMMISSIONAPPROVED EFFECTIVE JUlH'81 .,"u" 16'81 \"",- "'-.;1';;,\:~ ~JfJ.g-tf SECRETARY. Rate Schedule T-l FIRM TRANSPORTATION SERVICE AVAILABILITY: Available at any mutually agreeable delivery point on the Company's distributionsystem to any existing customer receiving service under the Company s rate schedulesLV-1, T-1, or T-2, upon execution of a one year minimum written service contract forfi~ transportation service in excess of 200, 000 the~s per year. MON'l'HLY RATE: Commodi ty Charge: All usage other than as feedstock in the production of ammonia: Block One:First 250,000 the~s transported ~$9.12i82*$0.11848Block Two:Next 500,000 therms transported ~98633 $0.07999Block Three:Amount over 750,000 therms transported ~$0.01071Alltherms used as feedstock in the production of ammonia:$0.02525 *Includes temporary purchased gas cost adjustment of $(9.99281)$(0.00471) PURCHASED GAS COST ADJUSTMEN'l': This tariff is subject to an adjustment for cost of purchased gas as provided for in the Company's Purchased Gas Cost Adjustment Provision. SERVICE CONDITIONS: 1. All natural gas service hereunder is subject to the General Service provisions ofthe Company I s Tariff, of which this Rate Schedule is a part. 2. The customer shall negotiate a Maximum Daily Fi~ Quantity (MDFQ) amount, whichwill be stated in and will be in effect throughout the term of the servicecontract. The MDFQ shall not exceed the customer's historical maximum daily usage,as agreed to by the Company. In the event the Customer requires daily usage in excess of the MDFQ, and subjectto the availability of fi~ interstate transportation to service Intermountain system, all such usage may be transported and billed under either secondary rate schedule T-3 or T-4. The secondary rate schedule to be used shall be predeterminedby negotiation between the Customer and Company, and shall be included in theservice contract. All volumes transported under the secondary rate schedule aresubject to the provisions of the applicable rate schedule T-3 or T- Issued by: Intermountain Gas Company By: Michael E. Huntington Title: Effective: July 1 e , 2001 July 1 , 2002 Vice President - Marketing and External Affairs I.P.C. Gas Tariff Second Revised Volume No. (Supersedes First Revised Volume No. NiAtATenth Revised Sheet No.10 (Page 1 of 2) Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 8 of 8 Name of Utility Intermountain Gas Company IDAHO PUBLIC UTiliTIES COMMISSIONAPPROVED EFFECTIVE .jJLl6 '81 ~~L 16 ' ~..... -",. "'- OIo;;-,S~ '3-J!1~ SECRETARY Rate Schedule T- FIRM TRANSPORTATION SERVICE WITH MAXIMUM DAILY DEMANDS AVAILABILITY: Available at any mutually agreeable delivery point on the Company s distributionsystem to any existing T-2 customer whose daily contract demand for nonammonia theDms on any given day meets or exceeds a predeteDmined level agreed to by the customer and the Company upon execution of a one-year minimum written service contract for fiDmtransportation service in excess of 200,000 theDms per year. MONTHLY RATE: FiDm Service Rate Per TheDm Demand Charge: FiDm Daily Demand First 15,000 theDms Amount over 15,000 theDms Commodi ty Charge: For FiDm TheDms Transported *Includes temporary purchased gas Over-Run Service $1.69887+$1.53849* $9.89729+$0.73691* $0.00656 cost adjustment of $(0.97129)$(0.09627) Commodi ty Charge: For TheDms Transported In Excess Of MDFQ:$0.04915 PURCHASED GAS COST ADJUSTMENT: This tariff is subject to an adjustment for cost of purchased gas as provided for in the Company's Purchased Gas Cost Adjustment Provision. SERVICE CONDITIONS: 1. All natural gas service hereunder is subject to the GeneralProvisions of the Company s Tariff, of which this Rate Schedule is a part.Service 2. The customer shall nominate a Maximum Daily FiDm Quantity (MDFQ), which willbe stated in and will be in effect throughout the teDm of the service contract. 3. The monthly Demand Charge will be equal to the MDFQ times the FiDm DailyDemand rate. FiDm demand relief will be afforded to those T-2 customers paying both demand and commodity charges for gas when, in the Company's judgment, such relief iswar ran ted. 4. The actual theDm usage for the month or the MDFQ times the number of days in the billing month, whichever is less, will be billed at the commodity charge for fiDmtheDms . Issued by: Intermountain Gas Company By: Michael E. Huntington Effective: July 16, 2001 July 1 , 2002 Title: Vice President - Marketing and External Affairs EXHIBIT NO. CASE NO. INT -02- INTERMOUNTAIN GAS COMPANY PROPOSED TARIFFS (7 pages) I.P.C. Gas Tariff Second Revised Volume No. (Supersedes First Revised Volume No. Thirty-Third Revised Sheet No. 01 (Page Name of Utility 1 of 1) Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 1 of 7 Intermountain Gas Company Rate Schedule RS- RESIDENTIAL SERVICE AVAILABILITY: Available to individually metered consumers not otherwise specifically provided for, using natural gas for residential purposes. RATE: Monthly minimum charge is the customer charge. For billing periods ending April through November Customer Charge - $2.50 per bill Commodity Charge - $0.74157 per the~* For billing periods ending December through March Customer Charge - $6.50 per bill Commodi ty Charge - $ 0 . 62901 per the~* *Includes: Temporary purchased gas cost adjustment of $ (0.03915) Weighted average cost of gas of $0.35295 PURCHASED GAS COST ADJUSTMENT: This tariff is subject to an adjustment for cost of purchased gas as provided for in the Company's Purchased Gas Cost Adjustment Provision. SERVICE CONDITIONS: All natural gas service hereunder is subject to the General Service provisions of the Company s Tariff, of which this rate schedule is a part. Issued by: Intermountain Gas Company By: Michael E. Huntington Title: Effective: July 1 , 2002 Vice President - Marketing and External Affairs I.P.C. Gas Tariff Second Revised Volume No. (Supersedes First Revised Volume No. Thirty-Third Revised Sheet No. Name of Utility 02 (Page 1 of 1) Intermountain Gas Company Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 2 of 7 Rate Schedule RS- MULTIPLE USE RESIDENTIAL SERVICE AVAILABILITY: Available to individually metered consumers using gas for residential purposes including both water heating and space heating. several RATE: Monthly minimum charge is the customer charge. For billing periods ending April through November Customer Charge - $2.50 per bill Commodi ty Charge - $ 0 . 60993 per the~* For billing periods ending December through March Customer Charge - $6.per bill Commodi ty Charge $ 0 . 57630 per the~* *Includes: Temporary purchased gas cost adjustment of $ (0.03839) Weighted average cost of gas of $0.35295 PURCHASED GAS COST ADJUSTMENT: This tariff is subject to an adjustment for cost of purchased gas as provided for in the Company's Purchased Gas Cost Adjustment Provision. SERVICE CONDITIONS: All natural gas service hereunder is subject to the General Service provisions of the Company I s Tariff, of which this rate schedule is a part. Issued by: Intermountain Gas Company By: Michael E. Huntington Title: Effective: July 1 , 2002 Vice President - Marketing and External Affairs I.P.C. Gas Tariff Second Revised Volume No. (Supersedes First Revised Volume No. Thirty-Fifth Revised Sheet No. 03 Name of Utility (Page 1 of 2) Intermountain Gas Company Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 3 of 7 Rate Schedule GS- GENERAL SERVICE AVAILABILITY: Available to individually metered customers whose requirements for natural gas do not exceed 2,000 the~s per day, at any point on Company's distributionsystem. Requirements in excess of 2, 000 the~s per day may be served under this rate schedule upon execution of a one-year written service contract. RATE: Monthly minimum charge is the customer charge. For billing periods ending April through November Customer Charge - $2.00 per bill Commodity Charge - First 200 the~s per bill ~ $0.63378* Next 1,800 the~s per bill ~ $0.61205* Over 2, 000 the~s per bill ~ $0.59103* For billing periods ending December through March Customer Charge - $9.50 per bill Commodity Charge - First 200 the~s per bill ~ $0.58293* Next 1, 800 the~s per bill ~ $0.56173* Over 2,000 the~s per bill ~ $0.54127* *Includes: Temporary purchased gas cost adjustment of $ (0.03877) Weighted average cost of gas of $0.35295 Issued by: Intermountain Gas Company By: Michael E. Huntington Title: Effective: July 1 , 2002 Vice President - Marketing and External Affairs I.P.C. Gas Tariff Second Revised Volume No. (Supersedes First Revised Volume No. Thirty-Fifth Revised Sheet No. 03 Name of Utility (Page 2 of 2) Intermountain Gas Company Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 4 of 7 Rate Schedule GS- GENERAL SERVICE (Continued) For separately metered deliveries of gas utilized solely as Compressed Natural Gas Fuel in vehicular internal combustion engines. Customer Charge - $9.50 per bill Commodi ty Charge - $ 0 .54127 per theDm* *Includes: Temporary purchased gas cost adjustment of $ (0.03877) Weighted average cost of gas of $0.35295 PURCHASED GAS COST ADJUSTMENT: This tariff is subject to an adjustment for cost of purchased gas as provided for in the Company s Purchased Gas Cost Adjustment Provision. SERVICE CONDITIONS: 1. Any GS-1 customer who leaves the GS-1 service will pay to InteDmountain Gas Company, upon exiting the GS-1 service, all gas and transportation related costs incurred to serve the customer during the GS-1 service period not borne by the customer during the time the customer was using GS-1 service. Any GS-1 customer who leaves the GS-1 service will have refunded to them, upon exiting the GS-service, any excess gas commodity or transportation payments made by the customer during the time they were a GS-1 customer. 2. All natural gas service hereunder is subject to the General Service provisions of the Company's Tariff, of which this rate schedule is apart. Issued by: Intermountain Gas Company By: Michael E. Huntington Title: Effective: July 1 , 2002 Vice President - Marketing and External Affairs I.P.C. Gas Tariff Second Revised Volume No. (Supersedes First Revised Volume No. Forty-Third Revised Sheet No. 04 Name of Utili (Page 1 of Intermountain Gas Com pan Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 5 of 7 Rate Schedule LV- LARGE VOLUME FIRM SALES SERVICE AVAILABILITY: Available at any mutually agreeable delivery point on the Company ' distribution system to any existing customer receiving service under the Company rate schedules LV-l, T-l, or T-2, or any new customer whose usage does not exceed 500,000 therms annually, upon execution of a one-year minimum written service contract for firm sales service in excess of 200,000 therms per year. MONTHLY RATE: Commodi ty Charge: First 250,000 therms per bill ~ $0.44260*Next 500,000 therms per bill ~ $0.40411* Amount Over 750,000 therms per bill ~ $0.33483** The above prices include weighted average cost of gas of $0.35295 Includes temporary purchased gas cost adjustment of $ (0.02944) ** Includes temporary purchased gas cost adjustment of $ (0.02473) PURCHASED GAS COST ADJUSTMENT (PGA): This tariff is subject to an adjustment for cost of purchased gas as provided for in the Company's Purchased Gas Cost Adjustment Provision. SERVICE CONDITIONS: 1. All natural gas service hereunder is subject to the General Service provisions of the Company's Tariff, of which this Rate Schedule is a part.2. Any LV-l customer who exits the LV-l service at any time (including, but not limited to, the expiration of the contract term) will pay to Intermountain Gas Company, upon exiting the LV-l service, all gas and/or interstate transportation related costs to serve the customer during the LV-l contract period not borne bythe customer during the LV-contract period. Any LV-customer will have refunded to them, upon exiting the LV-l service, any excess gas and/or interstate transportation related payments made by the customer during the LV-l contractperiod.3. In the event that total deliveries to any customer within the last three contract periods met or exceeded the 200,000 therm threshold, but the customer during the current contract period used less than the contract minimum of 200,000 therms, an additional amount shall be billed. The additional amount shall be calculated by billing the deficit usage below 200,000 therms at the T-l Block 1rate. The customer future eligibility for the LV-l Rate Schedule will be renegotiated wi th the Company. Issued by: Intermountain Gas Company By: Michael E. Huntington Title: Effective: July 1 , 2002 Vice President - Marketing and External Affairs I.P.C. Gas Tariff Second Revised Volume No. (Supersedes First Revised Volume No.Twenty Ninth Revised Sheet No. 05 (Page Name of UtilitY 1 of 2) Intermountain Gas Company Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 6 of 7 Rate Schedule T- FIRM TRANSPORTATION SERVICE AVAILABILITY: Available at any mutually agreeable delivery point on the Company I s distribution system to any existing customer receiving service under the Company s rate schedules LV-1, T-1, or T-2, upon execution of a one year minimum written service contract for firm transportation service in excess of 200,000 therms per year. MONTHLY RATE: Commodi ty Charge: All usage other than as feedstock in the production of ammonia:Block One: First 250,000 therms transported ~ $0.11848*Block Two: Next 500,000 therms transported ~ $0.07999* Block Three: Amount over 750,000 therms transported ~ $0.01071 All therms used as feedstock in the production of ammonia: ~ $0.02525 *Includes temporary purchased gas cost adjustment of $ (0.00471) PURCHASED GAS COST ADJUSTMENT: This tariff is subject to an adjustment for cost of purchased gas as provided for in the Company I s Purchased Gas Cost Adjustment Provision. SERVICE CONDITIONS: 1. All natural gas service hereunder is subject to the General Service provisions of the Company I s Tariff, of which this Rate Schedule is a part. 2. The customer shallwill be stated in contract. The MDFQ as agreed to by the negotiate a Maximum Daily Firm Quantity (MDFQ) amount, which and will be in effect throughout the term of the service shall not exceed the customer s historical maximum daily usage, Company. In the event the Customer requires daily usage in excess of the MDFQ, and subject to the availability of firm interstate transportation to service Intermountain' system, all such usage may be transported and billed under either secondary rateschedule T-3 or T-4. The secondary rate schedule to be used shall be predeterminedby negotiation between the Customer and Company, and shall be included in the service contract. All volumes transported under the secondary rate schedule are subject to the provisions of the applicable rate schedule T-3 or T- Issued by: Intermountain Gas Company By: Michael E. Huntington Title: Effective: July 1 , 2002 Vice President - Marketing and External Affairs I.P.C. Gas Tariff Second Revised Volume No. (Supersedes First Revised Volume No.Tenth Revised Sheet No.10 (Page 1 of 2) Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 7 of 7 Name of Utility Intermountain Gas Company Rate Schedule T- FIRM TRANSPORTATION SERVICE WITH MAXIMUM DAILY DEMANDS AVAILABILITY: Available at any mutually agreeable delivery point on the Company s distribution system to any existing T-2 customer whose daily contract demand for nonammonia therms on any given day meets or exceeds a predetermined level agreed to by the customer and the Company upon execution of a one-year minimum written service contract for firm transportation service in excess of 200,000 therms per year. MONTHLY RATE: Firm Service Rate Per Therm Demand Charge: Firm Daily Demand First 15,000 therms Amount over 15,000 therms $1. 53849* $0.73691* Commodi ty Charge:For Firm Therms Transported $0.00656 *Includes temporary purchased gas cost adjustment of $(0.09627) Over-Run Service Commodi ty Charge: For Therms Transported In Excess Of MDFQ:$0.04915 PURCHASED GAS COST ADJUSTMENT: This tariff is subject to an adjustment for cost of purchased gas as provided for in the Company's Purchased Gas Cost Adjustment Provision. SERVICE CONDITIONS: 1. All natural gas service hereunder is subject to the Genera1 Provisions of the Company s Tariff, of which this Rate Schedule is a part.Service 2. The customer shall nominate a Maximum Daily Firm Quantity (MDFQ), which will be stated in and will be in effect throughout the term of the service contract. 3. The month1y Demand Charge will be equal to the MDFQ times the Firm Daily Demand rate. Firm demand relief will be afforded to those T-2 customers paying both demand and commodity charges for gas when, in the Company's judgment, such relief iswarranted. 4. The actua1 therm usage for the month or the MDFQ times the number of days in the billing month, whichever is less, wi11 be billed at the commodity charge for firm therms . Issued by: Intermountain Gas Company By: Michael E. Huntington Effective: July 1 , 2002 Title: Vice President - Marketing and External Affairs EXHIBIT NO. CASE NO. INT-02- INTERMOUNTAIN GAS COMPANY PERTINENT EXCERPTS FROM WILLIAMS FILINGS (16 pages) ExhibitNo. Case No. INT-O2- Intermountain Gas Company Pa~~~.of 1.~ W ii/lams GAS PIPELINE. WEST 295 Chipeta W~y (84108) O, Box 58900 Salt Lake Cily. UT S4158.09oo pnone: (801) 583-8800FAX: (801) 584-7764 January 23, 2002 TO: ALL HOLDERS OF NORTHWEST PIPELINE CORPORATION' FERC GAS TARIFF, THIRD REVISED VOLUME NO. Please insert the enclosed tariff sheets into your copy of Northwesfs FERC Gas Tariff Third Revised Volume No.1. A brief description of the proceedings in which these tariff sheets were accepted or are pending is provided below. Also, enclosed is a list of Northwest's currently effective tariff sheets as of January 23, 2002. Docket No. RP02- On November 29, 2001 , Northwest filed the following tariff sheet to incorporate the new GRI surcharges approved by the Commission for 2002. In an order dated December , 2001 , the Commission accepted this sheet to be effective January 1, 2002. Twenty-Second Revised Sheet No. Docket No. RP02-116 On December 3, 2001 , Northwest filed tariff sheets to add a new rate schedule, Rate Schedule DEX-, to Northwest's tariff for the deferred exchange of storage gas. This rate schedule provides a mechanism for Northwest to increase the level of its system balancing gas in a particular gas storage facility without using mainline capacity to transport the gas from a storage facility connected to its system in a different geographical area. In an order dated January 2, 2002, the Commission accepted thesheets filed on December 3 to be effective January 1 , 2002, subject to conditions. On January 23 2002, Northwest filed revised tariff sheets to comply with the January 2 2002 order. These tariff sheets supersede certain sheets filed on December 3. Thus the following tariff sheets were either accepted in the January 2 order or were filed onJanuary 23 and are currently pending Commission acceptance. 1 As discussed below , certain tariff sheets pending in Docket No. RPO2.116 are included in this list. All-Holders January 23, 2002 Page 2 of 2 Substitute Eighth Revised Sheet No.6'" Substitute Fifteenth Revised Sheet No. 14~ Fifth Revised Sheet No. 15 Substitute Second Revised Sheet No. 115* Substitute Second Revised Sheet No. 116* Substitute Third Revised Sheet No. 117" Substitute Second Revised Sheet No. 118* First Revised Sheet No. 119 Eighth Revised Sheet No. 200 Third Revised Sheet No. 215 Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 2 of 16 Substitute Eighth Revised Sheet No. 231 * Seventh Revised Sheet No. 231- Third Revised Sheet No. 231- Fifth Revised Sheet No. 245 Fourth Revised Sheet No. 303- Substitute Original Sheet No. 359* Substitute Third Revised Sheet No. 360* Second Revised Sheet No. 361 First Revised Sheet No. 362 These tariff sheets are designated as pending on the enclosed tariff sheets. Other Information If you have questions concerning Northwest's regulatory issues , please call me or anyof the other individuals listed below: Billie Tolman John Woolf Toni Sharp Gary Kotter Bruce Warner Barbara Odland Manager, Tariffs & Regulatory Analysis Sr. Regulatory Analyst Sr. Regulatory Analyst Manager, Certificates Manager, Rates and Planning Office Administrator (801) 584-6976 (801) 584-6873 (801) 584-6389 (801) 584-7117 (801) 584-7251 (801) 584-6781 Northwest publishes FERCWatch to provide customers with information on Northwest' current and pending filings. It can be viewed on Northwest's EBB and Internet web site. You may also view Northwest's tariff on its Internet web site at www.1Iine.williams.com. Sincerely, (;. 4J*t John A. Woolf AJiholdO1 2302voI1 doc TF01013800083099NORTHWEST PIPELINE CORPORATIONTF021 3Third Revised Volume No.TF030 00000P126 Sheet No. 0 TF04 TF05Larry Larsen, Vice President TF06083099 TF07 Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 3 of 16 100199 FERC GAS TARIFF THIRD REVISED VOLUME NO. (Superseding Second Revised Volume No.1 and First Revised Volume No.1-A) NORTHWEST PIPELINE CORPORATION Filed with FEDERAL ENERGY REGULATORY COMMISSION Communications concerning this Tariff should be sent to: Larry E. Larsen , Vice President, Customer Services and Rates Northwest Pipeline Corporation 295 Chipeta Way (84108) O. Box 58900 Salt Lake City, Utah 84158-0900 Telephone: Facsimile: (801) 584-6324 (801) 584-7919 TF0301 TF04 TF05Larry E. TF06011802 TF07 060001P126Sixth Revised Sheet No. Fifth Revised Sheet No. Larsen, Vice President 021802 RATE SCHEDULES Table of Contents Map Preliminary Statement Statement of Rates Fuel Use Requirements Factors Rate Schedules - Index TF- TI- SGS- SGS- LS- LS- LS- TF- Firm Transportation Interruptible Transportation Storage Gas Service - Firm Storage Gas Service - Interruptible Liquefaction-Storage Gas Service Liquefaction-Storage Gas Service -Liquefaction-Storage Gas Service - Firm Redelivery Transportation FirmInterruptible General Terms and Conditions - Index Forms of Service Agreements Non-Conforming Service Agreements Negotiated Rate Service Agreements Original Volume No. Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 4 of 16 Sheet No. 100 200 304 363 370 An index of special rate schedules consisting of individual service agreements between Northwest and various Shippers is included in Northwest' FERC Gas Tariff, Original Volume No. TF0302 000002P1260riginal Sheet No. TF04 TF05Laren M. Gertsch, DirectorTF06101893 110193 Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 5 of 16 PRELIMINARY STATEMENT RELATED TO FERC GAS TARIFF, THIRD REVISED VOLUME NO. CONTAINING TRANSPORTATION AND STORAGE RATE SCHEDULES Northwest Pipeline Corporation ("Northwest" or Transporter ) is a natural gas company" as defined by the Natural Gas Act and "an interstatepipeline" as defined by the Natural Gas Policy Act of 1978. As such, Northwest is subj ect to the jurisdiction of the Federal Energy Regulatory Commission. Northwest is engaged in the transportation (the term transportation, as defined herein , includes storage service), in interstate commerce, of natural gas for Shippers, pursuant to the regulations of the Federal Energy Regulatory Commission. The maj or facilities of Northwest are depicted on the map constituting Sheet No.4 of this Tariff. Northwest's pipeline system extends from a point near Blanco, New Mexico, through the states of Colorado, Utah, Wyoming, Idaho, Oregon and Washington to a point on the International Boundary near Sumas, Washington. This Tariff contains transportation and storage rate schedules available for Shippers with whom Northwest contracts through executed Service Agreements for the transportation and storage of natural gas. It is the policy of Northwest to undertake the transportation and storage of gas only pursuant to written contracts with eligible customers upon the terms and conditions set forth in this Tariff, executed on a non-discriminatory basis after consideration of Northwest's existing commitments, delivery capacity,points of deli very and other relevant factors. This FERC Gas Tariff is filed in compliance with Part 154, Subchapter E, Chapter I, Title 18 of the Code of Federal Regulations, as promulgated by Order of the Federal Power Commission in Docket No. R-I07, dated October 30, 1948. TF0303 000010P126Sheet No. TF04 TF05Laren M. Gertsch , DirectorTF06101893 Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 6 of 16 110193 RESERVED FOR FUTURE USE TF0304 10009P126First Revised SheetTF04 Original Sheet No. TF05Larry E. Larsen, Vice President TFO 61 0 10 97 0 925 97RP97 -315 TF078061361 No. Exhibit No. Case No. INT-02- Intermountain Gas Company Page 7 of 16 060197 System Map TF0305 0220003P158Twenty-Second Revised SheetTF04 Twenty-First Revised Sheet No. TF05Larry Larsen, Vice President TF06112901 TF07 No. Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 8 of 16 010102 STATEMENT OF RATES Effective Rates Applicable to Rate Schedules TF-1 , TF-2 and TI- (Dollars per Dth) Rate Schedule and Type of Rate Base Tariff Rate Minimum Maximum Currently Effecti ve Tariff Rate (3) ACA (2) Minimum MaximumGRI (1) Rate Schedule TF-(4) (5) Reservation (Large Customer) High Load Factor Low Load Factor Volumetric (Large Customer) (Small Customer)( 6) 00000 27760 00217 00000 27977 00000 27760 00134 00000 27894 01225 03000 00550 00210 01435 03760 01225 58521 00880 00210 01435 59611 01225 30760 00550 00210 01435 31520Scheduled Overrun Rate Schedule TF-(4) (5) Reservation 00000 27760 00000 27760 Volumetric 01225 03000 01225 03000 Scheduled Daily Overrun 01225 30760 01225 30760 Annual Overrun 01225 30760 01225 30760 Rate Schedule TI-1 Volumetric (7)01225 30760 00550 00210 01435 31520 Scheduled Overrun 01225 30760 00550 00210 01435 31520 TF0305-A TF04 TF05Larry Larsen, TF06120100 TF07 0160003P158Sixteenth Revised Sheet No. 5-A Fifteenth Revised Sheet No. 5-A Vice President Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 9 of 16 010101 STATEMENT OF RATES (Continued) Effective Rates Applicable to Rate Schedules TF-1, TF-2 and TI-1 (Continued) (Dollars per Dth) Unauthorized Overrun and Underrun (8)Rate Unauthorized Daily Overrun At least the Threshold Percentage; but less than the Threshold Percentage plus 2%00000 The Threshold Percentage plus 2% or more 10.00000 Unauthorized Daily Underrun At least 5%; but less than 10%00000 10% or more 10.00000 Unauthorized Underrun Imbalances not eliminated after 72 hours 10.00000 Footnotes (1) Section 13 of the General Terms and Conditions describes the basis and app 1 i cabi 1 i ty of the GRI Adj ustment surcharges. (2) Section 16 of the General Terms and Conditions describes the basis and applicability of the ACA surcharge. TF0305-B TF04 TF05Larry Larsen, TF06120100 TF07 0020003P158Second Revised Sheet No. 5-B First Revised Sheet No. 5-BVice President Exhibit No. Case No. INT-02- Intermountain Gas Company Page 10 of 16 010101 STATEMENT OF RATES (Continued) Effective Rates Applicable to Rate Schedules TF-1, TF-2 and TI-1 (Continued) (Dollars per Dth) Footnotes (Continued) (3)The currently effective tariff rate is and the applicable surcharges. To the the maximum currently effective tariff applied on a non-discriminatory basis,Order No. 497. the sum of the base tariff rate extent Transporter discounts rate, such discounts will be subj ect to the policies of Shippers receiving service under these rate schedules are required to furnish fuel reimbursement in-kind at the rates specified on Sheet No. 14. A "Facility Cost-of-Service Charge," as defined in Section 21 of the General Terms and Conditions, is payable in addition to all other rates and charges if such a charge is included in Exhibit C to a Shpper s Transportation Service Agreement. In addition to the reservation rates and surcharges shown on Sheet No.5, Shippers who contract for Columbia Gorge Expansion Project capaci ty are subj ect to a Facilities Reservation Surcharge pursuant toSection 3.4 of Rate Schedule TF-1. The Facilities Charge used in deriving the Columbia Gorge Expansion Project Facilities Reservation Surcharge has a minimum rate of $0 and a maximum rate as follows (rates become effective November 1 of the year prior to the stated year and continue through October 31 of the stated year, except the Facilities Charge effective November 1, 2023 continues through March , 2025): Year Rate Year Rate Year Rate 2000 $0.23127 2008 $0.17068 2016 $0.11600 2001 $0.22533 2009 $0.16411 2017 $0.11221 2002 $0.21642 2010 $0.15706 2018 $0.10823 2003 $0.20800 2011 $0.15002 2019 $0.10425 2004 $0.19948 2012 $0.14259 2020 $0.09999 2005 $0.19245 2013 $0.13593 2021 $0.09628 2006 $0.18523 2014 $0.12889 2022 $0.09230 2007 $0.17819 2015 $0.12185 2023 $0.08832 2024 $0.08411 TF0305 - C TF04 TF05Larry Larsen, TF06120100 TF07 0000003P1580ri gi na 1 Sheet No. 5- Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 11 of 16 Vice President 010101 STATEMENT OF RATES (Continued) Effective Rates Applicable to Rate Schedules TF-1, TF-2 and TI-(Continued) (Dollars per Dth) Footnotes (Continued) (4) All reservation rates are dai ly rates computed on the basis of 365 days per year. except that such rates for 1 eap years are computed on the basis of 366 days. Rate Schedules TF-1 (Large Customer) and TF-2 maximum base tariff reservat i on rates are compri sed of $0.27193 for transmi ss i on costs and $0.00567 for storage costs. and maxi mum base tari ff vol umetri c rates are compri sed of $0.02966 for transmi ss i on costs and $0.00034 for storage costs. (5) Rates for Rate Schedules TF-1 and TF-2 are also applicable to capacity release service. (Section 22 of the General Terms and Conditions descri bes how bi ds for capaci ty release wi 11 be evaluated.The reservation rate is the comparable volumetric bid reservation charge applicable to Rep 1 acement Shi ppers bi ddi ng for capaci ty released on a one- part vol umetri c bi d bas is. For the peri ad from March 27. 2000 through September 30. 2002 the maxi mum reservation rates do not apply to capaci ty release transactions of less than one (1) year. (6) Rate Schedule TF-1 (Small Customer) one-part volumetric rate is based upon a 50% load factor, and the maximum base tariff rate is comprised of $0.57353 for transmission costs and $0.01168 for storage costs. Transporter will not transport gas for delivery for Small Customers subj ect to this Rate Schedule TF-1 under any interruptible Service Agreement or under any capacity release Service Agreement unless such Small Customer has exhausted its daily levels of firm service entitlement for that day. (7) Rate Schedule T1-1 maximum base tariff volumetric rate is comprised of $0.30159 for transmi ssi on costs and $0.00601 for storage costs. (8) Applicable to Rate Schedules TF-1, TF-2 and TI-1 pursuant to Section 15.5 of the General Terms and Conditions. TF036 080003P126Sub Eighth RevisedTF04 Seventh Revised Sheet TF05Larry Larsen, Vice President TFO 6012 302 0102 02RP02-116-00 0 TF079861002 Sheet No. No. Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 12 of 16 010102 STATEMENT OF RATES (Continued) Effective Rates Applicable to Rate Schedule DEX-1 (Dollars per Dth) Base Tariff Rate Currently Effecti veTariff Ra t e ( 3 ) Type of Rate Maximum Minimum Maximum GRI (1)ACA ( 2) Minimum Deferred Exchange 0000 30760 00550 00210 00210 31520 Footnotes (1 )Section 13 of the General Terms and Conditions describes the basis and applicabili ty of the GRI Adj ustment surcharges. (2)Section 16 of the General Terms and Conditions describes the basis and app1icabili ty of the ACA surcharge. (3)The currently effective tariff rate is and the applicable surcharges. To the the maximum currently effective tariff applied on a non-discriminatory basis, Order No.4 97. the sum of the base tariff rate extent Transporter discounts rate, such discounts will be subj ect to the policies of Shippers receiving service under this rate schedule are required to furnish fuel reimbursement in-kind at the rates specified on Sheet No. 14, except as provided in Section 4 of Rate Schedule DEX- PENDING COMMISSION ACCEPTANCE TF0307 TF04 TF05Larry Larsen, TF06120100 TF07 110003P128E1eventh Revised Sheet No. Tenth Revised Sheet No.Vice President Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 13 of 16 010101 STATEMENT OF RATES (Continued) Effective Rates Applicable to Rate Schedules SGS-2F and SGS- (Dollars per Dth) Rate Schedule and Type of Rate Currently EffectiveTariff Rate (1) Minimum Maximum Rate Schedule SGS-2F (2) Demand Charge Capaci ty Demand Charge 00000 00000 01689 00062 Volumetric Bid Rates Wi thdrawal Charge Storage Charge 00000 00000 01689 00062 Rate Schedule SGS- Volumetric 00000 00134 Footnotes (1 )Shippers receiving service under these rate schedules are required to furnish fuel reimbursement in-kind at the rates specified on Sheet No. 14. (2 )Rates are daily rates computed on the basis of 365 days per year, except that rates for leap years are computed on the basis of 366 days. Rates are also applicable to capacity release service. (Section 22 of the General Terms and Conditions describes how bids for capacity release will be evaluated.The Withdrawal Charge and Storage Charge are applicable to Replacement Shippers bidding for capacity released on a one-part volumetric bid basis. For the period from March 27 2000 through September 30, 2002 , the maximum rates do not apply to capaci ty release transactions of less than one (1) year. TF0308 TF04 TF05Larry Larsen, TF06120100 TF07 0140003P126Fourteenth Revised Sheet No. Thirteenth Revised Sheet No.Vice President Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 14 of 16 010101 STATEMENT OF RATES (Continued) Effective Rates Applicable to Rate Schedule LS- (Dollars per Dth) Type of Rate Currently EffectiveTariff Rate (1) Demand Charge (2) Capaci t y Charge (2) 02600 00332 Liquefaction Vaporization 55685 03030 Footnotes (1 )Shippers receiving service under this rate schedule are required to furnish fuel reimbursement in-kind at the rate specified on Sheet No. 14. (2)Rates are daily rates computed on the basis of 365 days per year, except that rates for leap years are computed on the basis of 366 days. TF038 . 1 TF04 TF05Larry Larsen, TF06120100 TF07 110003P128Eleventh Revised Sheet No. 8. Sub Tenth Revised Sheet No.8. 1Vice President Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 15 of 16 010101 STATEMENT OF RATES (Continued) Effective Rates Applicable to Rate Schedules LS-2F and LS- (Dollars per Dth) Rate Schedule and Type of Rate Currently EffectiveTariff Rate (1) Minimum Maximum Rate Schedule LS-2F (3) Demand Charge (2) Capaci ty Demand Charge (2) Liquefaction Vaporization 00000 02600 00000 00332 00000 02600 00000 00332 55685 55685 03030 03030 Volumetric Bid Rates Vaporization Demand-Related Charge (2) Storage Capaci t y Charge (2) Rate Schedule LS- Volumetric 00161 00826 Footnotes (1 )Shippers receiving service under these rate schedules are required to furnish fuel reimbursement in-kind at the rates specified on Sheet No. 14. (2)Rates are daily rates computed on the basis of 365 days per year, except that rates for leap years are computed on the basis of 366 days. (3)Rates are also applicable to capacity release service. (Section 22 of the General Terms and Conditions describes how bids for capacity release will be evaluated.The Vaporization Demand-Related Charge and Storage Capacity Charge are applicable to Replacement Shippers bidding for capacity released on a one-part volumetric bid basis. For the period from March 27, 2000 through September 30, 2002, the maximum rates do not apply to capacity release transactions of less than one (1) year. TF0309 020003P126Second Revised SheetTF04 First Revised Sheet No. TF05Larry Larsen, Vice President TFO 60 4 0300021100RP93-034 TF07 90 6114 6 No. Exhibit No. Case No. INT-O2- Intermountain Gas Company Page 16 of 16 060100 DOCKET NOS. RP93-5 AND RP93-96 SURCHARGE COLLECTION PLAN On April 3, 2000, Transporter filed tariff sheets with the Commission reflecting revised rates in Docket Nos. RP93-5 and RP93-96 applicable to the period from April 1, 1993, to October 31 , 1994. The filing reflects additional amounts, including applicable interest, owed by Shippers to Transporter. The filing outlined the following surcharge collection plan. Option 1. Payment to Transporter in a lump sum (Lump Sum Option) Option 2.Offset of Docket No. RP95-409 general rate case refund due Shipper, if any, with amounts owed Transporter in Docket Nos. RP93-5 and RP93-96 (Offset Option). This Offset Option is only available to parties who were Shippers during the Docket No. RP95-409 effective period (February 1, 1996 hrough February 28, 1997). Option 3.Payment to Transporter over a period of time, which will extend no longer than one year from the first payment duedate (Time Payment Option). The Time Payment Option is available only to Shippers maintaining a currently effective Service Agreement at the effective date of the surcharge. Upon the Commission s acceptance of Transporter s surcharge collection plan, Transporter will request Shippers to elect one of the above surcharge collection options. Within 45 days of Commission authorization (Transporter has requested Commission authorization prior to July 1, 2000), Transporter will send invoices to Shippers electing Option 1 or Option 3. Any Shipper failing to make an election will be deemed to have elected Option Any Shipper electing Option 2 will not be billed at the time of the ini tial billing to Shippers electing Option 1 or Option 3. At the point Transporter becomes obligated to make Docket No. RP95-409 refunds (Refund Obligation Date), the amount owing in Docket Nos. RP93-5 and RP93-96, inclusive of interest accrued up to the Refund Obligation Date, will be offset with the Docket No. RP95-409 refund. Any balance still owed Transporter in Docket Nos. RP93-5 and RP93-96, after the offset, will be billed immediately following the offset. This amount, along with accrued interest on any unpaid balance, will be due within 30 days after the offset. Any remaining amount due the Shipper after the offset, along with accrued interest, will be refunded to the Shipper in the ordinary course of the Docket No. RP95-409 refund. Interest will be computed through any and all payment due dates or offset date in accordance with Section 154.501 (d) of the Commission s regulations. Thirty days after the last payment is due under the surcharge collection options described above, Transporter will file a final surcharge report with the Commission detailing by Shipper the payments received by Transporter and any amounts offset against refunds due in Docket No. RP95-409. EXIllBIT NOS. 4- CASE NO. INT-G-O2- INTERMOUNTAIN GAS COMPANY (12 pages) Lin e No . De s c . . . ' ! P . t i o n (a ) DE M A N D C H A R G E S : Tra n s p o r t a U o n : NW P T F - 1 D e m a n d 1 ( F u l l R a t e ) NW P T F - 1 D e m a n d 1 ( D i s c o u n t e d ) Up s l r e a m C a p a c i t y Sto r a g e : SG S - De m a n d Ca p a c i t y D e m a n d TF - 2 R e s e r v a t i o n TF - 2 R e d e l i v e r y C h a r g e LS - De m a n d Ca p a c i t y Liq u e f a c t i o n Va p o o z a t i o n TF - 2 R e s e r v a t i o n TF - 2 R e d e l i v e r y C h a r g e Oil l e r P e a k i n g F a c i l i t i e s So c a l C y c l i n g C o s t s CO M M O D I T Y C H A R G E S : Tra n s p o r t a U o n : 1l n d u s l r i a l T r a n s p o r t a t i o n 2l n d u s l r i a l T r a n s p o r t a t i o n St o r a g e : LN G SG S Pro d u c e r / S u p p l i e r P u r c h a s e s : TO T A L R 5 - 1 R5 - 2 , a n d G 5 - 1 S A L E S V O L U M E S No r m a l i z e d S a l e s / C D V o l s . ( 1 0 / 1 / 0 0 - 9 / 3 0 / 0 1 ) IN T E R M O U N T A I N G A S C O M P A N Y Su m m a r y o f G a s C o s t C h a n g e s An n u a l 7/ 1 6 / 2 0 0 1 To t a l A n n u a l An n u a l 7/ 1 / 2 0 0 2 To t a l A n n u a l Th e r m s Pr i c e s Co s t Th e r m s Pr i c e s Co s t An n u a l IN T - 01 - IN T - 01 - IN T - G-D I - IN T - 02 - IN T - 02 - IN T - 02 - Dif f e r e n c e RS - (b ) (c ) (d ) (e ) (g ) (h ) (I ) 53 4 63 0 10 0 ( 1 ) $ 02 8 6 2 $ 1 5 30 1 11 3 53 4 , 63 0 10 0 ( 1 ) $ 0 . 02 8 6 2 15 , 30 1 , 11 3 (3 4 7 78 0 ) ( 2 ) (4 6 , 97 4 ) (4 6 7 54 9 ) ( 3 ) (6 3 , 15 2 ) 11 0 , 73 0 05 0 ( 1 ) 01 6 8 9 18 7 , 02 3 11 0 73 0 , 05 0 ( 1 ) 00 1 6 9 18 7 02 3 98 6 16 1 35 0 ( 1 ) 00 0 0 6 24 7 14 2 98 6 16 1 35 0 ( 1 ) 00 0 0 6 24 7 14 2 10 , 92 0 99 0 ( 1 ) 02 7 7 6 30 3 16 7 92 0 99 0 ( 1 ) 02 7 7 6 30 3 16 7 10 , 92 0 99 0 ( 1 ) 00 3 0 0 32 , 76 3 92 0 99 0 ( 1 ) 00 3 0 0 76 3 26 2 , 80 0 00 0 ( 1 ) 00 2 6 0 68 3 28 0 26 2 80 0 00 0 ( 1 ) 00 2 6 0 68 3 28 0 81 2 , 39 8 00 0 ( 1 ) 00 0 3 3 92 8 09 1 81 2 39 8 00 0 ( 1 ) 00 0 3 3 92 8 09 1 70 5 20 0 ( 1 ) 05 5 6 9 42 9 10 3 70 5 20 0 ( 1 ) 05 5 6 9 42 9 10 3 70 5 20 0 ( 1 ) 00 3 0 3 34 7 70 5 20 0 ( 1 ) 00 3 0 3 34 7 7, 7 0 5 15 0 ( 1 ) 02 7 7 6 21 3 89 5 70 5 15 0 ( 1 ) 02 7 7 6 21 3 89 5 7, 7 0 5 , 20 0 ( 1 ) 00 3 0 0 11 6 70 5 20 0 ( 1 ) 00 3 0 0 11 6 (1 2 0 , 71 1 ) ( 4 ) (1 6 30 4 ) (7 1 59 5 ) ( 5 ) 67 0 ) 10 6 54 0 00 4 1 0 16 4 43 7 40 , 10 6 54 0 00 4 1 0 16 4 43 7 25 2 20 3 00 4 1 0 43 4 25 2 20 3 00 4 1 0 43 4 00 0 00 0 35 2 9 5 11 7 70 0 00 0 00 0 35 2 9 5 11 7 70 0 7, 7 0 5 20 0 35 2 9 5 71 9 55 0 7,7 0 5 20 0 35 2 9 5 2,7 1 9 55 0 10 , 92 0 99 0 35 2 9 5 85 4 56 3 92 0 99 0 35 2 9 5 85 4 , 56 3 22 6 83 1 78 1 35 2 9 5 06 0 27 7 22 6 83 1 78 1 35 2 9 5 06 0 27 7 25 1 45 7 97 1 25 1 , 45 7 97 1 00 7 , 63 5 ) (1 3 6 10 0 ) 61 6 03 4 (0 , 00 3 8 2 ) Av e r a g e B a s e R a t e C h a n g e Ot h e r P e r m a n e n t C h a n g e s P r o p o s e d : Eli m i n a t i o n o f Te m p o r a r y P r i c e R e d u c t i o n / ( S u r c h a r g e ) t i o m C a s e N o , I N T - 01 - Ad j u s t m e n t 1 0 F i x e d Co s t C o l l e c t i o n R a t e ( s e e E x h i b i t 6 , L i n e 2 5 ) To t a t P e r m a n e n t C h a n g e s P r o p o s e d ( U n e s 3 2 t h r o u g h 3 5 ) : (0 , 16 4 1 6 ) (0 , 00 1 0 5 ) (0 , 16 9 0 3 ) (0 , 03 9 1 5 ) (0 , 20 8 1 8 ) Te m p o r a r y S u r c h a r g e ( C r e d i t ) P r o p o s e d ( E x h i b i t N o , 7 , LI n e 6 , C o l s ( b ) - ( D ) Pr o p o s e d A v e r a g e P e r T h e r m / C D C h a n g e I n I n t e r m o u n t a i n G a s C o m p a n y T a r i f f (1 ) R e p r e s e n t s N o n - Ad d i U v e D e m a n d C h a r g e D e l e r m i n a n t s (2 ) S e e W o r k p a p e r N o , 1 , L i n e 1 1 , C o l u m n ( d ) (3 ) S e e W o r k p a p e r N o , 2 , L i n e 9 , C o l u m n ( d ) (4 ) S e e W o r k p a p e r N o , 3 , L i n e 2 9 , C o l u m n ( d ) (5 ) S e e W o r k p a p e r N o , 4 , L i n e 5 , C o l u m n ( d ) (6 ) S e e W o r k p a p e r N o , 5 , L i n e 1 0 Co s t o f S e r v i c e A l l o c a t i o n o f G a s C o s t A d j u s t m e n t ( 6 ) RS - GS - De m a n d Co m m o dit y (k ) (I) (m ) (n ) (1 5 5 17 2 ) (1 1 5 00 9 ) (2 4 56 9 ) 05 6 ) (2 0 8 60 9 ) (1 5 4 , 61 6 ) (3 3 03 0 ) 14 2 ) (5 3 , 85 8 ) (3 1 94 4 ) (3 9 91 9 ) (2 3 , 67 6 ) 52 8 ) 05 8 ) (4 4 9 58 3 ) (3 3 3 22 0 ) 32 0 , 07 4 92 , 52 1 86 3 (0 , 00 3 6 5 ) (0 , 00 3 6 0 ) (0 , 16 1 5 9 ) (0 , 16 0 3 8 ) (0 , 00 1 6 1 ) (0 , 00 1 4 4 ) (0 , 16 6 8 5 ) (0 , 16 5 4 2 ) (0 , 03 8 3 9 ) (0 , 03 8 7 7 ) (0 , 20 5 2 4 ) (0 , 20 4 1 9 ) (7 1 18 5 ) 10 6 54 0 (0 , 00 1 7 7 ) 00 2 6 0 (0 , 00 2 3 7 ) (0 , 00 1 5 4 ) (0 , 00 4 4 6 ) (0 . 00 6 0 0 ) 10 2 ) 24 7 ) (1 7 54 7 ) 69 6 84 0 25 2 20 3 (0 , 02 5 1 8 ) 07 1 2 9 (0 , 02 0 2 2 ) 02 5 8 9 (0 , 09 6 2 7 ) (0 , 07 0 3 8 ) "U - Q) ; l Q ) x (Q CD e n : J ' " CD - ' CD 5 ' Z; : : : ; : Oc : : O Z -: J ' 0 -" O ) S' - - I ~ G) G ) Q) I en 0 0 ~ "'0 '0 : : : $4 . $4 . $4 . $4 . 1 0 ~ $ 4 . ~ $ 3 . $3 . $3 . $3 . IN T E R M O U N T A I N G A S C O M P A N Y No v e m b e r - M a r c h F u t u r e s P r i c e S t r i p s As o f Ma y 2 0 , 2 0 0 2 Su m a s Ro c k i e s Su p p l y B a s i n Ae c o . N o v O2 - M a r . N o v O3 - M a r E) N o v O4 - M a r -u - Q) ; a . Q ) X (Q C D en : : r CD ~ CD 0 : ... . . . z; : : ; : oc : o z - : : J ' 0 wo r S' - I CJ 1 G) G ) Q) I en : : 3 "'0 :: J '.: : : : $4 . $4 . :: s $ 4 . .. . .~ $ 3 . .. . . . . . ~ $ 3 . $3 . $3 . IN T E R M O U N T A I N G A S C O M P A N Y Ap r i l - O c t o b e r Fu t u r e s P r i c e S t r i p s As o f M a y 2 0 , 2 0 0 2 Su m a s Ro c k i e s Su p p l y B a s i n Ae c o .. A p r O3 - O c t ' . A p r O4 - O c t ' "" U - Q) ~ Q ) X co CD e n : : : r CD - ' CD c r I\ ) ~ z : : + oc : : o z - ~ . 0 wo r .. . . - j 0 1 G) G ) Q) I en 0 0 ~ '0 : : : : $5 . $4 . $4 . ::: : : I II I :E $ 3 . f; h $3 . $2 . $2 . IN T E R M O U N T A I N G A S C O M P A N Y An a l y s i s o f N a t u r a l G a s F u t u r e s P r i c e s A s o f Ma y 2 0 , 2 0 0 2 It . "" A ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ u ~ u ~ u ~ ~v ~ v 0 0 ( ; ) ~0 ~ ~v ~ v 0 0 ( ; ) ~0 ~ ~v ~ v 0 0 ( ; ) ~0 ~ De l i v e r y M o n t h - ~ - . S u m a s -- - + - . R o c k i e s Ae c o -u - Q) ; l Q ) x co CD ( J ) : J CD . . . . , CD c r wg z; : : : ; : 0 c 0 Z -: J ' 0 W Q ) - . - - - ' C J 1 :J - ; 0 G) G ) Q) I (J ) 0 t; - J "c : : : Li n e No . De s c r i p t i o n (a ) DE M A N D CH A R G E S : Tr a n s p o r t a t i o n : NW P T F - 1 D e m a n d 1 ( F u l l R a t e ) NW P T F - 1 D e m a n d 1 ( D i s c o u n t e d ) Up s t r e a m C a p a c i t y St o r a g e : SG S - 1 De m a n d Ca p a c i t y D e m a n d TF - 2 R e s e r v a t i o n TF - 2 R e d e l i v e r y C h a r g e LS - De m a n d Ca p a c i t y Li q u e f a c t i o n Va p o r i z a t i o n TF - 2 R e s e r v a t i o n TF - 2 R e d e l i v e r y C h a r g e Oth e r P e a k i n g F a c i l i t i e s So c a l C y c l i n g C o s t s To t a l F i x e d G a s C o s t C h a r g e s No r m a l i z e d S a l e s l C D V o l s . ( F Y 0 2 E s t i m a t e d V o l u m e s ) ' Fix e d C o s t C o l l e c t i o n p e r T h e r m ( R o w 2 1 1 R o w 2 2 ) Cu r r e n t F i x e d C o s t C o l l e c t i o n p e r T h e r m Dif f e r e n c e ( R o w 2 3 - R o w 2 4 ) (1 ) S e e W o r k p a p e r N o . 5, L i n e 1 0 IN T E R M O U N T A I N G A S C O M P A N Y Su m m a r y o f F i x e d G a s C o s t C h a r g e s 07 1 1 6 1 2 0 0 1 Co s t o f S e r v i c e A l l o c a t i o n o f G a s C o s t A d j u s t m e n t (1 ) An n u a l Pr i c e s An n u a l Th e r m s IN T - 01 - Co s t RS - RS - 2 GS - (b ) (c ) (d ) (e ) (ij (g ) (h ) (i) 53 4 , 63 0 , 10 0 02 8 6 2 15 , 30 1 11 3 06 6 , 71 4 6,, 8 2 6 98 0 06 0 , 00 3 08 0 , 95 8 26 6 , 4 5 8 14 5 92 4 , 4 0 0 01 9 3 4 82 1 65 3 38 1 , 11 9 25 8 95 2 93 3 10 7 19 9 , 33 8 13 7 52 7 71 2 77 0 01 0 6 0 59 4 , 88 7 75 5 69 9 2, 4 9 6 , 30 0 85 0 , 20 2 39 5 25 5 97 , 4 3 1 11 0 , 73 0 05 0 01 6 8 9 18 7 02 3 25 , 26 1 83 , 4 4 5 61 , 84 8 13 , 21 2 25 7 98 6 16 1 , 35 0 00 0 0 6 24 7 14 2 38 1 11 0 , 26 8 72 9 46 0 30 4 10 , 92 0 , 99 0 02 7 7 6 30 3 16 7 40 , 94 9 13 5 26 6 10 0 , 25 6 21 , 4 1 7 27 9 92 0 99 0 00 3 0 0 32 , 76 3 64 0 16 , 06 8 05 5 26 2 , 80 0 , 00 0 00 2 6 0 68 3 , 28 0 92 , 29 0 30 4 86 3 22 5 , 95 7 27 1 11 , 89 9 81 2 39 8 , 00 0 00 0 3 3 92 8 , 09 1 12 5 , 35 7 41 4 09 1 30 6 , 91 5 65 , 56 6 16 , 16 2 70 5 , 20 0 05 5 6 9 42 9 10 3 95 9 19 1 , 4 5 5 14 1 90 2 30 , 31 4 47 3 70 5 , 20 0 00 3 0 3 34 7 15 3 10 , 4 1 7 72 1 64 9 40 7 70 5 15 0 02 7 7 6 21 3 89 5 89 1 95 , 4 3 4 70 , 73 4 15 , 11 1 72 5 70 5 20 0 00 3 0 0 11 6 27 4 33 7 50 5 21 4 74 2 56 9 , 28 3 88 0 , 51 4 39 3 , 79 5 29 7 , 75 3 39 7 50 0 00 0 01 5 9 1 59 5 67 0 94 4 23 , 67 6 24 7 31 , 07 4 , 91 7 19 7 64 0 13 , 86 7 , 33 4 10 , 27 8 , 4 0 5 19 1 36 2 54 0 , 17 6 56 0 , 41 8 13 4 61 3 , 96 9 25 4 66 9 30 2 75 7 66 0 , 84 0 11 4 8 1 10 3 0 2 10 5 6 9 05 5 7 6 81 7 4 1 11 5 8 6 10 4 6 3 10 7 1 3 05 8 1 3 83 7 6 3 (0 0 0 1 0 5 1 (0 . 00 1 6 1 1 (0 0 0 1 4 4 1 (0 0 0 2 3 7 1 (0 0 2 0 2 2 1 -u - Il J a . Il J X (Q CD e n : J ' " CD ' CD c r -" ' Z; : : + : Oc : O Z -: J ' 0 -' " o r -. - ; (j ) :J I G) G ) Il J I en 0 0 ~ Il J '-c : : : IN T E R M O U N T A I N G A S C O M P A N Y Su m m a r y o f P r o p o s e d T e m p o r a r y S u r c h a r g e s ( C r e d i t s ) CO S T O F S E R V I C E A L L O C A T I O N O F D E F E R R E D G A S C O S T S Li n e No . De s c r i p t i o n RS - RS - GS - (a ) (b ) (c ) (d ) (e ) (f ) Ma r k e t S e g m e n t a t i o n (1 ) (0 . 00 8 9 9 ) (0 . 00 8 5 7 ) (0 . 00 8 4 7 ) (0 . 00 4 1 7 ) (0 . 05 9 2 1 ) No r t h w e s t P i p e l i n e R e f u n d D o c k e t N o . R P 9 5 - 4 0 9 (2 ) (0 . 01 5 5 5 ) (0 . 00 6 3 7 ) (0 . 01 1 3 0 ) No r t h w E j s t P i p e l i n e S u r c h a r g e D o c k e t N o . R P 9 3 - 5 ( 3 ) 00 4 4 5 00 3 1 6 00 3 7 5 Pr o p o s e d T e m p o r a r y S u r c h a r g e ( C r e d i t ) - Fix e d C o s t s (4 ) 00 5 6 7 (0 . 00 1 8 8 ) 00 1 9 8 (0 . 00 0 2 9 ) (0 . 03 7 0 6 ) Pr o p o s e d T e m p o r a r y S u r c h a r g e ( C r e d i t ) - Ac c o u n t 1 8 6 V a r i a b l e (5 ) 02 4 7 3 02 4 7 3 02 4 7 3 To t a l P r o p o s e d T e m p o r a r y S u r c h a r g e ( C r e d i t ) 10 03 9 1 5 ) 10 . 03 8 3 9 1 10 . 03 8 7 7 1 (0 . 00 4 4 6 ) 10 09 6 2 7 ) (1 ) S e e E x h i b i t N o . Li n e 3 , Co l s . (c ) - ( g ) (2 ) S e e Ex h i b i t N o . , L i n e 3 , C o l s . ( c ) - ( g ) (3 ) S e e Ex h i b i t N o . 1 0 , L i n e 3 , C o l . ( c ) - ( g ) (4 ) S e e Ex h i b i t N o . 1 1 Li n e 1 3 , Co l . ( c ) - ( g ) (5 ) S e e Ex h i b i t N o . 1 2 , L i n e 8 , C o l . ( b ) "U - Q) ; 1 Q ) x (Q CD ( f ) : : r CD . . , C D c r .. . . . ~ Z; + oc : O Z - : : J ' 0 ... . . D r 5' -! -.. , J G) G ) Q) I (f ) 0 r: - ' :: J o.. c : : IN T E R M O U N T A I N G A S C O M P A N Y All o c a t i o n o f A n n u a l i z e d S e g m e n t a t i o n C r e d i t s Li n e No . CO S T O F S E R V I C E A L L O C A T I O N O F D E F E R R E D G A S C O S T S (1 ) To t a l RS - RS - GS - (b ) (c ) (d ) (e ) (f ) (9 ) 36 9 , 50 8 ) (3 2 0 04 8 ) 05 7 21 6 ) (7 8 3 , 58 5 ) (1 6 7 39 6 ) (4 1 26 3 ) 61 6 03 4 12 3 32 0 , 07 4 52 1 86 3 10 6 , 54 0 69 6 84 0 (0 . 00 8 9 9 ) (0 . 00 8 5 7 ) (0 . 00 8 4 7 ) (0 . 00 4 1 7 ) (0 . 05 9 2 1 ) De s c r i p t i o n (a ) Se g m e n t a t i o n C r e d i t s No r m a l i z e d S a l e s / C D V o l s . ( 1 0 / 1 / 0 0 - 9 / 3 0 / 0 1 ) Pr o p o s e d P r i c e A d j u s t m e n t P e r T h e r m / C D (1 ) S e e W o r k p a p e r N o . , L i n e 1 0 -a - Q) ~ Q ) X tC C D e n :: : r CD - ' CD c r -- , - z; : : ; : 0 c 0 Z -- : : J ' 0 -- ' - Q ) S' -j C P G) G ) Q) I en a I'; - - ' ::J -o e : : : Li n e No . De s c r i p t i o n (a ) No r t h w e s t P i p e l i n e R e f u n d D o c k e t N o . R P 9 5 - 4 0 9 No r m a l i z e d S a l e s / C D V o l s . ( 1 0 / 1 / 0 0 - 9 / 3 0 / 0 1 ) Pr o p o s e d P r i c e A d j u s t m e n t P e r T h e r m / C D (1 ) S e e W o r k p a p e r N o . , L i n e 1 0 (2 ) R e f u n d a m o u n t a p p l i e d t o L V - , T - , T - , T - , a n d T - 4 c u s t o m e r b i l l s IN T E R M O U N T A I N G A S C O M P A N Y Al l o c a t i o n o f N o r t h w e s t P i p e l i n e R e f u n d D o c k e t N o . R P 9 5 - 40 9 CO S T O F S E R V I C E A L L O C A T I O N O F D E F E R R E D G A S C O S T S (1 ) To t a l RS - RS - GS - (b ) (c ) (d ) (e ) (f ) (g ) (2 , 38 5 , 55 1 ) (5 5 3 , 99 6 ) (7 8 5 , 84 9 ) 04 5 , 7 0 6 ) - ~ ) $ (2 ) 35 , 61 6 03 4 12 3 32 0 07 4 52 1 86 3 10 6 , 54 0 69 6 , 84 0 (0 . 01 5 5 5 ) (0 . 00 6 3 7 ) (0 . 01 1 3 0 ) -u - ID ; l I D x c. c C D e n : : : r CD . . , CD c r ... . . . z; : : ; : oc : O z .. . . , : : J ' 0 ... . . . o r -. :: J I G) G ) ID I en ~ "'C :: J o.. c : : : Li n e No . De s c r i p t i o n (a ) No r t h w e s t P i p e l i n e S u r c h a r g e D o c k e t N o . R P 9 3 - No r m a l i z e d S a l e s / C D V o l s . ( 1 0 / 1 / 0 0 - 9 / 3 0 / 0 1 ) Pr o p o s e d P r i c e A d j u s t m e n t P e r T h e r m / C D (1 ) S e e W o r k p a p e r N o . , L i n e 1 0 (2 ) S u r c h a r g e a m o u n t a p p l i e d t o L V - , T - 1, T - , T - , a n d T - 4 c u s t o m e r b i l l s IN T E R M O U N T A I N GA S C O M P A N Y No r t h w e s t P i p e l i n e S u r c h a r g e D o c k e t N o . R P 9 3 - CO S T O F S E R V I C E A L L O C A T I O N O F D E F E R R E D G A S C O S T S (1 ) To t a l RS - RS - GS - (b ) (c ) (d ) (e ) (f ) (g ) 89 5 , 20 2 15 8 , 52 5 38 9 39 2 34 7 28 5 - ( 2 ) $ - ( 2 ) 61 6 03 4 12 3 , 32 0 07 4 92 , 52 1 86 3 40 , 10 6 , 54 0 69 6 , 84 0 00 4 4 5 00 3 1 6 00 3 7 5 -u - Q) ~ Q ) X CO C D e n : : T CD " " CD 5 ' ... . . . z; : : ; : 0 c 0 Z -- : J ' 0 ... . . . o r =j " - ; ~ G) G ) Q) I en a 'c : : : : IN T E R M O U N T A I N G A S C O M P A N Y Pr o p o s e d T e m p o r a r y S u r c h a r g e s ( C r e d i t s ) . F i x e d C o s t s De f e r r e d Ac c o u n t 1 8 6 0 Es t i m a t e d CO S T O F S E R V I C E A L L O C A T I O N O F D E F E R R E D G A S C O S T S (1 ) Li n e Ju n e 3 0 , 2 0 0 2 No . De s c r i p t i o n Ba l a n c e RS . RS . GS . (a ) (b ) (c ) (d ) (e ) (f ) (g ) Fi x e d C o s t s : Fr o m I N T - 01 - 3 ( A c c t s 1 8 6 0 . 20 5 0 - 2 0 9 0 ) 96 1 29 0 23 4 ) 06 4 ) 88 6 08 3 Fi x e d C o s t C o l l e c t i o n A d j u s t m e n t ( A c e ! . 1 8 6 0 . 22 0 0 ) 52 8 84 1 26 5 , 7 8 5 (6 9 52 7 ) 34 3 97 5 03 7 (2 0 , 4 2 9 ) Ex i t F e e ( A c e ! . 1 8 6 0 . 22 1 0 ) (1 0 , 58 7 ) (1 , 4 3 0 ) (4 , 72 4 ) (3 , 50 1 ) (7 4 8 ) (1 8 4 ) St a t o i l R e v e n u e D e f e r r a l ( A c e ! . 1 8 6 0 . 22 6 0 ) (5 5 , 63 2 ) 51 4 ) (2 4 82 2 ) (1 8 39 7 ) (3 , 93 0 ) (9 6 9 ) Ca p a c i t y R e l e a s e & P u r c h a s e s ( A c c t 1 8 6 0 . 23 2 0 ) (4 0 1 82 8 ) (5 4 , 27 5 ) (1 7 9 28 5 ) (1 3 2 , 88 3 ) (2 8 38 7 ) (6 , 99 8 ) In t e r e s t ( A c c t s 1 8 6 0 . 24 2 0 , 2 4 3 0 ) 28 , 98 1 91 4 12 , 93 1 58 4 04 7 50 5 Ex p a n s i o n I I R e f u n d ( A c c t 1 8 6 0 . 21 2 0 - 1 8 6 0 . 21 4 0 ) 09 6 ) (6 3 6 ) (8 1 4 ) (1 5 2 ) 37 9 12 7 Ma r k e t S e g m e n t a t i o n ( A c c t 1 8 6 0 . 25 3 0 ) 36 7 , 4 3 4 ) (3 2 8 52 2 ) (1 , 02 0 61 9 ) (7 8 7 , 7 6 9 ) (1 8 5 , 7 4 5 ) (4 4 , 77 9 ) Am o r t i z a t i o n o f 1 8 6 0 . 25 3 0 ( A c c t 1 8 6 0 . 25 4 0 - 1 8 6 0 . 25 5 0 ) 36 2 86 7 29 8 29 2 05 9 84 0 77 6 , 09 1 18 5 , 82 7 42 , 81 7 To t a l s 11 6 0 7 3 20 1 9 0 4 12 3 1 25 4 \ 18 2 8 8 4 11 1 6 3 4 \ 12 5 82 7 \ No r m a l i z e d S a l e s / C D V o l s . ( 1 0 / 1 1 0 0 . 9/ 3 0 / 0 1 ) 35 6 1 6 0 3 4 12 3 3 2 0 0 7 4 92 5 2 1 8 6 3 40 1 0 6 5 4 0 69 6 8 4 0 Pr o p o s e d T e m p o r a r y S u r c h a r g e ( C r e d i t ) . Fi x e d C o s t s 00 5 6 7 (0 . 00 1 8 8 ) 00 1 9 8 (0 . 00 0 2 9 ) (0 . 03 7 0 6 ) (1 ) S e e W o r k p a p e r N o . 5, L i n e 1 0 "U - Q) ~ Q ) X (Q CD e n : J " CD - ' CD C ' .. . . . . ~ Z; : : ; : OI : : O Z - : : J ' 0 .. . . . . a r S' - I : : : G) G ) Q) I en a 0 ' i " "'C :: J o.. c : : Exhibit No. 12 Case No. INT-O2- Intermountain Gas Company INTERMOUNTAIN GAS COMPANY Page 1 of Proposed Temporary Surcharges (Credits). Variable Costs Line No.Description (a) Amount (b) Account 1860 Amounts Which Apply to RS., RS.2, GS., and L V. Account 1860 Variable Costs 470,959 Normalized Sales/CD Vols. (10/1/00 - 9/30/01)254 583 811 Proposed Temporary Surcharge (Credit)00185 Variable Gas Costs Normalized Sales/CD Vols. (10/1/00 - 9/30/01) Proposed Temporary Surcharge (Credit) $ (6 766 014) 254 583,811 $ (0.02658) Proposed Temporary Surcharge(Credit) . Variable Costs (0.02473) Li n e No . De s c r i ti o n (a ) Ga s S a l e s : RS - 1 R e s i d e n t i a l RS - 2 R e s i d e n t i a l GS - 1 G e n e r a l S e r v i c e LV - 1 L a r g e V o l u m e To t a l G a s S a l e s 1 T r a n s p o r t a t i o n 2 T r a n s p o r t a t i o n ( D e m a n d ) 2 T r a n s p o r t a t i o n ( C o m m o d i t y ) To t a l T - (1 ) To t a l (1 ) D e m a n d v o l u m e s r e m o v e d f r o m t h e $ / t h e r m c a l c u l a t i o n s IN T E R M O U N T A I N G A S C O M P A N Y An a l y s i s o f A n n u a l i z e d P r i c e D e c r e a s e b y C l a s s o f S e r v i c e No r m a l i z e d V o l u m e s f o r T w e l v e M o n t h s E n d e d S e p t e m b e r 3 0 , 2 0 0 1 Av e r a g e P r i c e s E f f e c t i v e pe r C a s e N o . I N T - 01 - Co m m i s s i o n O r d e r N o . 2 8 7 8 3 Pr o p o s e d Ad j u s t m e n t s E f f e c t i v e 7/ 1 / 2 0 0 2 Pr o p o s e d A v e r a g e P r i c e s Ef f e c t i v e 7 / 1 / 2 0 0 2 An n u a l Th e r m s / C D V o l s . (b ) $f T h e r m Re v e n u e (g ) $f T h e r m (h ) $f T h e r m (d ) Re v e n u e (e ) Re v e n u e (c ) 35 , 61 6 03 4 $ 96 4 16 2 $ 95 3 6 2 (7 , 4 1 4 54 6 ) $ (0 . 20 8 1 8 ) 54 9 , 61 6 $ 74 5 4 4 12 3 , 32 0 07 4 10 4 64 2 01 6 84 8 5 4 (2 5 31 0 21 2 ) (0 . 20 5 2 4 ) 33 1 80 4 64 3 3 0 52 1 86 3 95 0 , 87 5 79 9 2 8 (1 8 , 89 2 03 9 ) (0 . 20 4 1 9 ) 05 8 83 6 59 5 0 9 12 5 84 0 01 3 54 1 64 4 1 6 63 1 51 3 (0 . 20 2 0 3 ) 38 2 02 8 44 2 1 3 25 4 58 3 81 1 21 4 57 0 59 4 84 2 8 3 24 8 31 0 (0 . 20 5 2 3 ) 16 2 32 2 28 4 63 7 6 0 98 0 , 70 0 91 0 70 9 10 5 7 5 (2 2 1 88 4 ) (0 . 00 6 0 0 ) 68 8 82 5 09 9 7 5 69 6 84 0 53 4 01 6 76 6 3 4 (4 9 , 04 4 ) (0 . 07 0 3 8 ) 48 4 97 2 69 5 9 6 25 2 20 3 15 9 09 4 00 6 5 6 15 9 09 4 00 6 5 6 25 2 69 3 11 0 02 8 5 8 04 4 (0 . 00 2 0 2 ) 64 4 06 6 02 6 5 6 3t 5 ~ 21 9 1 7 4 4 1 3 $ 69 3 9 9 $ 1 5 2 . 51 9 2 3 8 l $ . (0 1 6 6 3 0 \ 16 6 6 5 5 . 17 5 $ 52 l 6 . 9 Pe r c e n t Ch a n q e (i)21 . 83 % 24 . 19 % 25 . 55 % 31 . 36 % 24 . 35 % 67 % 18 % 00 % 07 % 23 . 96 % -u - OJ ; : a . OJ X (. Q C D e n : : r CD ~ CD 5 ' ... . . . Z; : : ; : 0 c 0 Z -: J ' 0 .. . . . . o r 50 -- I ~ G) G ) OJ I en a t: - ' o.. c : : : rJ ) . tf j c= . . rJ ) . rJ ) . tf j EXECUTIVE OFFICES INTERMOUNTAIN GAS COMPANY 555 SOUTH COLE ROAD. P.O. BOX 7608 . BOISE, IDAHO 83707 . (208) 377-6000 . FAX: 377-6097 NEWS RELEASE Contact: Mike Huntington Vice President Marketing & External Affairs (208) 377-6059DATE May 23 2002 TODAY, INTERMOUNTAIN GAS COMPANY ("INTERMOUNTAIN ) FILED ITS ANNUAL NATURAL GAS PURCHASE COST REVIEW APPLICATION WITH THE IDAHO PUBLIC UTILITIES COMMISSION ("IPUC"). THIS TYPE OF APPLICATION IS FILED EACH YEAR AT THIS TIME TO PROVIDE THE IPUC WITH A REVIEW MECHANISM THAT HELPS INSURE THAT THE NATURAL GAS COSTS THAT INTERMOUNTAIN IS INCURRING ON BEHALF OF ITS CUSTOMERS ARE PROPER AND ARE REFLECTED IN ITS SALES PRICE. THE APPLICATION REQUESTS THE NECESSARY AUTHORIZATION TO DECREASE PRICES ON AVERAGE BY 24%. THIS APPLICATION REFLECTS THE LOWER PRICES THAT INTERMOUNTAIN HAS BEEN PAYING SINCE ITS LAST ADJUSTMENT ONE YEAR AGO. THE DECREASE ALSO REFLECTS THE FACT THAT ALL PREVIOUS COSTS DEFERRED DURING THE RECENT PERIOD OF UNUSUALLY HIGH ENERGY PRICES HAVE NOW BEEN RECOVERED. WILLIAM C. "BILL" GLYNN, PRESIDENT OF INTERMOUNTAIN GAS COMPANY, SAID, "THE FUNDAMENTAL LAW OF SUPPLY AND DEMAND IS WORKING IN THE MARKETPLACE AND HAS PROVIDED THIS OPPORTUNITY TO PASS LOWER NATURAL GAS COSTS ON TO OUR CUSTOMERS.THIS PRICE DECREASE IS WELCOME NEWS COMPARED TO THE HIGH PRICES THAT WE HAVE ALL EXPERIENCED OVER THE PAST TWO YEARS AND WILL PROVIDE OUR CUSTOMERS WITH MORE DISPOSABLE INCOME FOR OTHER GOODS AND SERVICES, FURTHER STRENGTHENING THE STATE AND NATIONAL ECONOMIC RECOVERY" THE COMPANY IS NOT REQUESTING ANY CHANGE IN THE PRICE COMPONENT FOR ITS OWN SERVICE, OPERATION MAINTENANCE, OR CAPITAL COSTS, WHICH HAS REMAINED THE SAME FOR NEARLY 20 YEARS. THEREFORE THE COMPANY EARNINGS WILL NOT CHANGE AS A RESULT OF THE PROPOSED PRICE DECREASES. INTERMOUNTAIN CONTINUES TO ENCOURAGE ALL ITS CUSTOMERS TO BE CONSCIOUS OF THEIR ENERGY USAGE AND THE WISE USE OF ENERGY AS WELL. THE COMPANY WILL CONTINUE TO PROVIDE HELPFUL TIPS ON WAYS TO CONSERVE AND USE ENERGY WISELY THROUGH ITS BILL INSERTS AND ON ITS WEB SITE (www.intqas.com IF THIS PROPOSED DECREASE IS APPROVED, RESIDENTIAL CUSTOMERS USING NATURAL GAS FOR HEATING AND WATER HEATING COULD EXPERIENCE AN AVERAGE ANNUAL DECREASE OF $188 (24.2%). THOSE RESIDENTIAL CUSTOMERS USING NATURAL GAS FOR SPACE HEATING ONLY COULD EXPERIENCE AN AVERAGE ANNUAL DECREASE OF $128 (21.8%). COMMERCIAL CUSTOMERS COULD EXPERIENCE AN AVERAGE ANNUAL DECREASE OF $795 (25.6%). IF APPROVED AS FILED, THE TOTAL NET REVENUE DECREASE FROM THIS CURRENT REQUEST WILL BE APPROXIMATELY $52.5 MILLION (24.0%) AND IS PROPOSED TO BE EFFECTIVE JULY 1 , 2002. A COpy OF INTERMOUNTAIN'S APPLICATION IS AVAILABLE FOR PUBLIC REVIEW AT THE COMPANY'S OFFICES AND ON ITS WEB SITE. EXECUTIVE OFFICES INTERMOUNTAIN GAS COMPANY 555 SOUTH COLE ROAD. P.O. BOX 7608 . BOISE, IDAHO 83707 . (208) 377-6000 . FAX: 377-6097 CUSTOMER NOTICE DATE May 23,2002 Contact: Mike Huntington Vice President Marketing & External Affairs (208) 377-6059 TODAY, INTERMOUNTAIN GAS COMPANY ("INTERMOUNTAIN") FILED ITS ANNUAL NATURAL GAS PURCHASE COST REVIEW APPLICATION WITH THE IDAHO PUBLIC UTILITIES COMMISSION ("IPUC"). THIS TYPE OF APPLICATION IS FILED EACH YEAR AT THIS TIME TO PROVIDE THE IPUC WITH A REVIEW MECHANISM THAT HELPS INSURE THAT THE NATURAL GAS COSTS THAT INTERMOUNTAIN IS INCURRING ON BEHALF OF ITS CUSTOMERS ARE PROPER AND ARE REFLECTED IN ITS SALES PRICE. THE APPLICATION REQUESTS THE NECESSARY AUTHORIZATION TO DECREASE PRICES ON AVERAGE BY 24%. THIS APPLICATION REFLECTS THE LOWER PRICES THAT INTERMOUNTAIN HAS BEEN PAYING SINCE ITS LAST ADJUSTMENT ONE YEAR AGO. THE DECREASE ALSO REFLECTS THE FACT THAT ALL PREVIOUS COSTS DEFERRED DURING THE RECENT PERIOD OF UNUSUALLY HIGH ENERGY PRICES HAVE NOW BEEN RECOVERED. WILLIAM C. "BILL" GLYNN , PRESIDENT OF INTERMOUNTAIN GAS COMPANY, SAID , " THE FUNDAMENTAL LAW OF SUPPLY AND DEMAND IS WORKING IN THE MARKETPLACE AND HAS PROVIDED THIS OPPORTUNITY TO PASS LOWER NATURAL GAS COSTS ON TO OUR CUSTOMERS.THIS PRICE DECREASE IS WELCOME NEWS COMPARED TO THE HIGH PRICES THAT WE HAVE ALL EXPERIENCED OVER THE PAST TWO YEARS AND WILL PROVIDE OUR CUSTOMERS WITH MORE DISPOSABLE INCOME FOR OTHER GOODS AND SERVICES, FURTHER STRENGTHENING THE STATE AND NATIONAL ECONOMIC RECOVERY" THE COMPANY IS NOT REQUESTING ANY CHANGE IN THE PRICE COMPONENT FOR ITS OWN SERVICE, OPERATION, MAINTENANCE, OR CAPITAL COSTS, WHICH HAS REMAINED THE SAME FOR NEARLY 20 YEARS. THEREFORE THE COMPANY' EARNINGS WILL NOT CHANGE AS A RESULT OF THE PROPOSED PRICE DECREASES. INTERMOUNTAIN CONTINUES TO ENCOURAGE ALL ITS CUSTOMERS TO BE CONSCIOUS OF THEIR ENERGY USAGE AND THE WISE USE OF ENERGY AS WELL. THE COMPANY WILL CONTINUE TO PROVIDE HELPFUL TIPS ON WAYS TO CONSERVE AND USE ENERGY WISELY THROUGH ITS BILL INSERTS AND ON ITS WEB SITE (www.intqas.com IF THIS PROPOSED DECREASE IS APPROVED, RESIDENTIAL CUSTOMERS USING NATURAL GAS FOR HEATING AND WATER HEATING COULD EXPERIENCE AN AVERAGE ANNUAL DECREASE OF $188 (24.2%). THOSE RESIDENTIAL CUSTOMERS USING NATURAL GAS FOR SPACE HEATING ONLY COULD EXPERIENCE AN AVERAGE ANNUAL DECREASE OF $128 (21.8%). COMMERCIAL CUSTOMERS COULD EXPERIENCE AN AVERAGE ANNUAL DECREASE OF $795 (25.6%). IF APPROVED AS FILED, THE TOTAL NET REVENUE DECREASE FROM THIS CURRENT REQUEST WILL BE APPROXIMATELY $52.5 MILLION (24.0%) AND IS PROPOSED TO BE EFFECTIVE JULY 1, 2002. A COpy OF INTERMOUNTAIN'S APPLICATION IS AVAILABLE FOR PUBLIC REVIEW AT THE COMPANY'S OFFICES AND ON ITS WEB SITE. WORKP APER NOS. 1- CASE NO. INT -G-O2- INTERMOUNTAIN GAS COMPANY (8 pages) Workpaper No. Case No. INT-O2- Intermountain Gas Company Page 1 of Intermountain Gas Company Northwest Pipeline TF-1 Discounted Demand Workpaper Line INT-01-INT-01-INT-01- No.Trans ortation Annual Therms Prices Annual Cost (a)(b)(c)(d) TF-1 Demand 1 Shipper #1 600 000 01627 1,425 252 TF-1 Demand 1 Shipper #2 28,470,000 01683 479,150 TF-1 Demand 1 Shipper #3 404,400 01375 404 311 TF-1 Demand 1 Shipper#4 450,000 13987 512 940 Total Annual Cost 145 924,400 01934 821 653 INT -02-INT-02-INT -02- Trans ortation Annual Therms Prices Annual Cost TF-1 Demand 1 Shipper #1 600,000 01623 1,421 748 TF-1 Demand 1 Shipper #2 28,470,000 01679 478,011 TF-1 Demand 1 Shipper #3 29,404,400 01371 403,134 TF-1 Demand 1 Shipper #4 150 000 13987 170,980 Total Annual Cost 145 624,400 01699 473 873 Total Annual Cost Difference 347 780 (1) (1) See Exhibit 4, Line 4, Column (h) Workpaper No. Case No. INT-O2- Intermountain Gas Company Page 1 of 1 Intermountain Gas Company Upstream Capacity Workpaper Line INT-01-INT-01-INT-01- No.Trans ortation Annual Therms Prices Annual Cost (a)(b)(c)(d) Upstream Capacity #1 206 118 920 01069 203 115 Upstream Capacity #2 166,568,630 00508 845,991 Upstream Capacity #3 155 025 220 01642 545 781 Total Upstream Capacity 527,712 770 01060 594 887 INT-02-INT-02-INT-02- Trans ortation Annual Therms Prices Annual Cost Upstream Capacity #1 181 258,720 01067 934 483 Upstream Capacity #2 138,819,721 00466 647,497 Upstream Capacity #3 155,025,220 01642 545,358 Total Upstream Capacity 475,103,661 01079 127 338 Total Annual Cost Difference (467,549) (1) (1) See Exhibit 4, Line 5, Column (h) Workpaper No. Case No. INT-O2- Intermountain Gas Company Page 1 of Intermountain Gas Company Other Peaking Facilities Line INT-01- Monthly INT-G-O1-INT-01-INT-01- No.Peakin Facilities Billinq Determinant Prices Monthlv Cost Annual Cost (a)(b)(c)(d)(d) Demand Costs. Clay Basin I Demand 266 250 (1)28534 971 911 655 Clay Basin 11 Demand 221 880 (1)28534 311 759 730 Clay Basin I Capacity 950,000 (2)00238 977 911 725 Clay Basin 11 Capacity 625 000 (2)00238 314 759 771 AECO I Demand 530 350 (2)00162 825 165 900 AECO II Demand 064 970 (2)00107 964 335,562 Total Demand Costs 170 320 (3)320 362 844 343 Cycling Costs - Clay Basin Cycling Costs 575 000 00089 148 625 778 AECO Cycling Costs 595,320 00057 674 236 084 Total Cycling Costs 170,320 822 861 862 Storage Credit 491,463 Total Costs including storage credit 214 742 INT-02- Monthly INT-02-INT-02-INT-02- Peakin Facilities Billinq Determinant Prices Monthlv Cost Annual Cost Demand Costs. Clay Basin I Demand 266 250 (1)28534 75,971 911 655 Clay Basin II Demand 221 880 (1)28534 311 759 730 Clay Basin I Capacity 950 000 (2)00238 977 911 725 Clay Basin 11 Capacity 625 000 (2)00238 314 759 771 AECO I Demand 530 350 (2)00159 576 162 912 AECO 11 Demand 064 970 (2)00108 28,137 337 644 Total Demand Costs 170 320 (3)320 286 843,437 Cycling Costs. Clay Basin Cycling Costs 575 000 00064 526 450 308 AECO Cycling Costs 595 320 00070 107 289 286 Total Cycling Costs 170 320 633 739 594 Storage Credit 489 000 Total Costs including storage credit 094 031 Total Annual Cost Difference including Storage Credit 120 711 (4) (1) Charge Based on Maximum Daily Withdrawal 2) Charge Based on Maximum Contractual Capacity ('3) Non Additive Billing Determants; Only Includes Capacity Volumes (4) See Exhibit 4, Line 19, Column (h) Workpaper No. Case No. INT-O2- Intermountain Gas Company Page 1 of Intermountain Gas Company Socal Cycling Costs Workpaper Line INT-01-INT-01-INT-01- No.Socal Storaqe Facilities Annual Therms Prices Annual Cost (a)(b)(c)(d) SoCal Cycling 500 000 01591 71,595 Total Cycling Costs 500 000 71,595 Other Storaqe Facilities SoCal Cycling Total Cycling Costs INT-02- Annual Therms INT-02- Prices 00000 INT-02- Annual Cost Total Cycling Cost Difference (71 595)(1) (1) See Exhibit 4, Line 20, Column (h) Workpaper No. Case No. INT-O2- Intermountain Gas Company Page 1 of INTERMOUNTAIN GAS COMPANY Peak Day Analysis for Demand Allocators in Case No. INT -O2- FIRM Line CORE TOTAL TRANSPORTATION TOTAL FIRM No.RS-RS.GS.CORE TRANSPORTATION DEMAND ALLOCATORS PER CASE NO.INT.O1- Peak Day Therms 428,232 330 389 026,865 785,486 242,120 58,370 300,490 % oITotal 90.26272%73728% TOTAL PEAK 085 976 PROPOSED DEMAND ALLOCATORS PER CASE NO.INT-O2-: Peak Day Therms (Line 2)428,232 330 389 026 865 2,785,486 Customers Embedded within Line 2 60,145 137 579 23,953 221 677 Peak Day Usage Per Customer (Line 5 divided by Line 6)42. January 2002 Actual Customers 59,991 145,911 394 230,296 INT-01- Peak Day Therms (Line 7 mulitplied by Line 8)427,136 1,410 959 045,771 883 866 223,406 070 % of Total 1350695%91.19399%1.illm. (1) FY02 Contract Therms 278,476 (1)162 342 80600% Detail Detail Amount Sub-Total Total (b)(c)(d)(e)(f) 998,154. (34929,524.33) 46,310,726 17130 933,027. (42 862 551.69) 135,602. 912 373. 323 562.97) (3,354,825.02) (6,766,014.20) 346,244. (10 887.59) 335 356. 295 055.05) INTERMOUNTAIN GAS COMPANY Analysis of Account 1860 Surcharges (Credits) Estimated June 30, 2002 LineNo. Description (a) ACCOUNT 1860 VARIABLE AMOUNTS: Net Cumulative Deferred Gas Balance in 1860.2010 as of 7/16/01 Amortization in 1860.2020 as of 3/31/02 Estimated Therm Sales 4/1 through 6/30/02 Amortization Rate Estimated Amortization in 1860.2020 at 6/30/02 Estimated Balance in 1860.2010 at 6/30/02 Deferred Gas Costs From Producers/Suppliers in 1860.2180 at 7/16/01 Deferred Gas Costs From Producers/Suppliers in 1860.2180 through 3/31/02 Estimated Deferred Costs in 1860.2180 from 4/1 through 6/30/02 Estimated Balance in 1860.2180 at 6/30/02 Daily Gas Excess Sales Deferred in 1860.2240 at 3/31/02 Gas Cost Carrying Charge Deferred in 1860.2340 at 3/31/02 Estimated Gas Cost Carrying Charge from 4/1 through 6/30/02 Estimated Balance in 1860.2340 at 6/30/02 ESTIMATED ACCOUNT 1860 VARIABLE BALANCE AT 6/30/02 ACCOUNT 1860 FIXED AMOUNTS: Net Cumulative Deferred Gas Balance in 1860.2050 at 7/16/01 RS-1 Deferred Gas Balance in 1860.2060 at 7/16/01 Amortization for RS-1 in 1860.2060 at 3/31/02 Estimated RS-1 Therm Sales 4/1 through 6/30/02 RS-1 Amortization Rate Estimated RS-1 Balance in 1860.2060 at 6/30/02 797051 (0.00180) RS-2 Deferred Gas Balance in 1860.2070 at 7/16/01 Amortization for RS-2 in 1860.2070 at 3/31/02 Estimated RS-2 Therm Sales 4/1 through 6/30/02 RS-2 Amortization Rate Estimated RS-2 Balance in 1860.2070 at 6/30/02 23,720 104 00112 (9,260.15) 170967. GS-1 Deferred Gas Balance in 1860.2080 at 7/16/01 Amortization for GS-1 in 1860.2080 at 3/31/02 Estimated Therm Sales 4/1 through 6/30/02 GS-1 Amortization Rate Estimated GS-1 Balance In 1860.2080 at 6/30/02 204 590 00222 974. Industrial Deferred Gas Balance in 1860.2090 at 7/16/01 AmortizationforT-1 & T-2in 1860.2090 at 3/31/02 Estimated T-1 Block 1 & 2 Therm Sales 4/1 through 6/30/02 1 Amortization Rate 379,488 (0.00224) Estimated T-2 Confract 4/1 through 6/30/02 2Amortization Rate Estimated Industrial Balance in 1860.2090 at 6/30/02 168 210 00710 Estimated Cumulative Balance in 1860.2050 at 6/30/02 Fixed Cost Collection Deferred in 1860.2200 at 7/16/01 Fixed Cost Collection Deferred in 1860.2200 through 3/31/02 Estimated Fixed Cost Collection Deferred from 4/1 through 6/30/02 Estimated Balance in 1860.2200 at 6/30/02 4 Exit Fee Adjustment Deferred in 1860.2210 at 7/16/01 4 Exit Fee Adjustment Deferred in 1860.2210 through 3/31/02 Estimated T-4 Exit Fee Adjustment Deferred from 4/1 through 6/30/02 Estimated Balance in 1860.2210 at 6/30/02 Statoil Revenue Deferred in 1860.2260 at 7/16/01 Statoil Revenue Deferred in 1860.2260 through 3/31/02 Estimated Statoil Revenue Deferred from 4/1 through 6/30/02 Estimated Balance in 1860.2260 at 6/30/02 Capacity Released/Purchased Deferred in 1860.2320 at 3/31/02 654. (58,325.75) 10,434. (29,962.19) 133 370. 566. 817.76) ($43 249.86) (18,770.05) 194. Workpaper No. Case No. INT-O2- Intermountain Gas Company Page 1 of 2 (191 946.37) (40,105.82) 129974. 197 681.91 (63,643.38) 961. 157 760. (824 155.88) 195 236. 528 841. 413. 800.55) 200.77) (10,587.40) 776. (43 840.74) (13,568.60) (55,632.43) (401 828.13) INTERMOUNTAIN GAS COMPANY Analysis of Account 1860 Surcharges (Credits) Estimated June 30, 2002 Line No.Description (a) Detail (b) Detail (c) Expansion II Refund Amortizations in 1860.2130 at 7116/01 Amortizations Deferred in 1860.2130 through 3/31/02 Estimated Amortizations Deferred in 1860.2130 from 4/1 through 6/30/02 Estimated Balance in 1860.2130 at 6/30/02 Expansion II Refund Amortizations in 1860.2140 at 7/16/01 Amortizations Deferred in 1860.2140 through 3/31/02 Estimated Amortizations Deferred in 1860.2140 from 4/1 through 6/30/02 Estimated Balance in 1860.2140 at 6/30/02 Gas Cost Carrying Charge Deferred in 1860.2420 at 3131/02 Estimated Gas Cost Carrying Charge from 4/1 through 6/30/02 Estimated Balance in 1860.2420 at 6130102 Gas Cost Carrying Charge Deferred in 1860.2430 at 3/31/02 Estimated Gas Cost Carrying Charge from 4/1 through 6/30/02 Estimated Balance in 1860.2430 at 6/30/02 NWP RP93.5 Surcharge Deferred in 1860.2500 at 7116101 NWP RP93-5 Surcharge Deferred in 1860.2500 through 3/31/02 Estimated NWP RP93-5 Surcharge Deferral in 1860.2500 from 4/1 through 6/30/02 Estimated Balance in 1860.2500 at 6/30102 Market Segmentation Deferred in 1860.2530 at 7/16101 Market Segmentation Deferred in 1860.2530 through 3/31/02 Estimated Deferral in 1860.2530 from 4/1 through 6/30/02 Estimated Balance in 1860.2530 at 6/30/02 849. 782 644.53) 592639. 246,466. 797,051 00894 51,825. 856,083. 720 104 00859 203 755. 635,111. 16,204590 00870 140 979. 143,510. 379,488 00505 316.42 32,019. 168 210 06419 10,797.40 RS-1 Amortization in 1860.2540 at 3/31/02 Estimated RS-1 Therm Saies from 4/1 through 6/30/02 RS-1 Amortization Rate Estimated RS-1 Amortization in 1860.2540 at 6/30/02 RS-2 Amortization in 1860.2540 at 3/31/02 Estimated RS-2 Therm Saies from 4/1 through 6/30/02 RS-2 Amortization Rate Estimated RS-2 Amortization in 1860.2540 at 6/30/02 GS-1 Amortization in 1860.2540 at 3/31/02 Estimated GS Therm Saies from 4/1 through 6/30/02 GS-1 Amortization Rate Estimated GS-1 Amortization in 1860.2540 at 6/30/02 1 Amortization in 1860.2550 at 3/31/02 Estimated T-1 Block 1&2 Therm Sales from 4/1 through 6/30/02 1 Amortization Rate 2 Amortization in 1860.2550 at 3/31/02 Estimated T-2 CD Therm Sales from 4/1 through 6/30/02 2 Amortization Rate Estimated industriai Amortization in 1860.2550 at 6/30/02 Estimated Balance in 1860.2530 at 6/30/02 NWP RP95.409 Refund Deferred in 1860.2560 at 7116/01 NWP RP95-409 Surcharge Deferred in 1860.2560 through 3/31/02 Estimated NWP RP95-409 Surcharge Deferral in 1860.2560 from 4/1 through 6/30/02 Estimated Balance in 1860.2560 at 6130/02 ESTIMATED ACCOUNT 1860 FIXED BALANCE AT 6/30/02 TOTAL DEFERRED ACCOUNT 1860 BALANCE Workpaper No. Case No. INT-O2- Intermountain Gas Company Page 2 of 2 Amount (d) 874.31) 273. (153.48) 659. 600.91) 129. 039. 587.15) 164 514. 367,434.35) 298,292.48 059,839. 776 091. 228,643. 281,413.24) Sub.Total (e) Total (f) 601.31) 505. (1,471.05) 30,452. 164 514. 567.72) (3,281,413.24) 000 826.46) (8,295 881.51) INTERMOUNTAIN GAS COMPANY 1 Tariff Block 1 , Block 2, and Block 3 Adjustment Workpaper No. Case No. INT-O2- Intermountain Gas Company Page 1 of Line No. Block 1 Block 2 Block 3 Descri tion Therm Sales Therm Sales Therm Sales Total (a)(b)(c)(d)(e) Industrial Therm Sales (10/1/00 9/30101)369,084 588 946 148 510 106 540 Blocks 1 and 2 Therm Sales 369 084 588 946 958 030 Percent Therm Sales between Blocks 1 and 2 77.373%22.627%100.000% Proposed Adjustment to T-1 Tariff (1)(0.00600) Industrial Therm Sales (10/1/00 9/30101)106 540 Annualized Adjustment (Line 4 multiplied by Line 5) (240,639) Annualized Adjustment (Line 4 multiplied by Line 5)(240 639) Percent Annualized Sales included in Block 1 77.373% Adjustment to Block 1 (Line 7 mulitplied by Line 8)(186 190) Block 1 Therms 369,084 Price AdjustmentlTherm Block 1 (Line 9 divided by Line 10)(0.00634) Northwest Pipeline TF-1 Commodity Charge Change (2)00000 Total Price AdjustmentlTherm Block 1 (0.00634) Annualized Adjustment (Line 4 multiplied by Line 5)(240 639) 22.627% (54,449) 588 946 (0.00634) 00000 (0.00634) Percent Annualized Sales included in Block 2 Adjustment to Block 2 (Line 14 multiplied by Line 15) Block 2 Therms Price AdjustmentlTherm Block 2 (Line 16 divided by Line 17) Northwest Pipeline TF-1 Commodity Charge Change (2) Total Price AdjustmentlTherm Block 2 Total Price AdjustmentlTherm Block 3 (1) See Exhibit No., Line 38, Col. (I) minus the difference of Line 23, Col. (D minus Line 23, Col. (c) (2) See Exhibit No., Line 23, Col. (D minus Line 23, Col. (c)