IGC-Appendix A Gas Sales And Portfolio Administration Agreement Revised Page No. 1 November 1, 1997 APPENDIX A - Buyer's Primary Delivery Points North/East System Delivery Point Delivery Point 2509 Dana 010530070 Dunkirk 2510 Danville 032150100 Muncie 2515 Elwood 037045550 ANR Storage Facilities 2516 Fairmount ANRNNS NN Service Injection Points 2530 Noblesville PEPL IND GAS-INJ 2531 North Salem CGCU Points of Interconnection 2535 Richmond with Citizens Gas & 2538 Tipton Coke Utility 2576 Huntington 2597 Crawfordsville 2605 Upland 2684 Unionport 2751 Montpelier 2754 Sheridan 2757 Bloomingdale 2772 Newport 2780 Lebanon 2795 Anderson 2796 Zionsville 2812 Carpentersville 2822 Fowlerton 2823 Richmond 5233 Anderson 121N Rural 5530 Cent. Ind. Rurals 5531 West of Zionsville 5532 North of Zionsville 5534 East of King 5864 King 010530010 East Hancock School 010530030 Hope IGC-Appendix A Gas Sales And Portfolio Administration Agreement Revised Page No. 2 November 1, 1997 APPENDIX A - Buyer's Primary Delivery Points Central/Terre Haute System Delivery Point 14411 Bedford 14412 Bedford 14431 Columbus 14432 Columbus 14433 Columbus 14461 Bargersville 14463 Bargersville 14481 Mitchell 14482 Mitchell 14491 Needmore 14492 Needmore 14493 Needmore 14501 Seymour 14511 Waynesville 14512 Waynesville 14521 Rural (Mitchell) 14522 Rural (Martinsville) 14523 Rural (Terre Haute) 14531 Crane 14533 Crane 18421 Sand Cut 18422 Sand Cut 18423 Sand Cut 18424 Sand Cut IGC-Appendix A Gas Sales And Portfolio Administration Agreement Revised Page No. 3 November 1, 1997 APPENDIX A - Buyer's Primary Delivery Points Central/Terre Haute System (Continued) Delivery Point 18451 Clinton 18452 Clinton 18461 Hercules Clinton 18462 Hercules Clinton 18491 Terre Haute-2 18492 Terre Haute-2 18511 Terre Haute-4 18521 Stuckey Rd. 18522 Stuckey Rd. 18523 Stuckey Rd. 18531 Rural Ind. 18541 Terre Haute-6 18542 Terre Haute-6 18571 Magaret (Terre Haute) 18573 Magaret (Terre Haute) 037047100 West Shelbyville CGCU Points of Interconnection with Citizens Gas & Coke Utility 70018 TETCO Seymour IGC-Appendix A Gas Sales And Portfolio Administration Agreement Revised Page No. 4 November 1, 1997 APPENDIX A - Buyer's Primary Delivery Points South System Delivery Point 17031 Locust, KY 17032 Locust, KY 17041 Moorefield, In. 17042 Moorefield, In. 17251 Crestwood, KY 17252 Crestwood, KY Greensburg System Delivery Point 70017 Greensburg 70940 Westport TETCO TETCO Storage Facilities Amendment Seller and Buyer agree that this Appendix A may be amended as provided in this Agreement, which amendment ultimately will be memorialized in a revised Appendix A. PROLIANCE ENERGY, LLC INDIANA GAS COMPANY, INC. By: /s/ Carl L. Chapman By: /s/ Timothy M. Hewitt Carl L. Chapman Timothy M. Hewitt Its: President Its: Vice President IGC-Appendix B Gas Sales And Portfolio Administration Agreement Revised Page No. 1 November 1, 1997 APPENDIX B - Buyer's Maximum Quantities Maximum Daily Quantities (in Dth) Central/ Month North/East Terre Haute South Greensburg October 251,000 112,000 37,600 5,060 November 332,000 208,000 45,300 5,570 December 482,578 277,237 69,100 8,000 January 482,578 277,237 70,600 8,310 February 472,578 261,381 62,400 7,360 March 400,000 215,000 51,000 5,980 April 252,000 120,000 31,500 3,560 May 208,000 99,000 23,000 2,640 June 152,000 74,000 15,200 2,620 July 94,000 42,000 5,200 1,570 August 120,000 56,000 9,600 1,990 September 185,000 91,000 20,600 3,250 Maximum Seasonal Quantities (in Dth) Central/ Month North/East Terre Haute South Greensburg Summer 1997 11,202,130 5,850,260 1,676,840 267,145 Winter 1997-98 38,579,050 21,473,920 5,513,670 697,710 IGC-Appendix B Gas Sales And Portfolio Administration Agreement Revised Page No. 2 November 1, 1997 APPENDIX B - Buyer's Maximum Quantities Amendment Seller and Buyer agree that this Appendix B may be amended as provided in this Agreement, which amendment ultimately will be memorialized in a revised Appendix B. PROLIANCE ENERGY, LLC INDIANA GAS COMPANY, INC. By: /s/ Carl L. Chapman By: /s/ Timothy M. Hewitt Carl L. Chapman Timothy M. Hewitt Its: President Its: Vice President IGC-Appendix C Gas Sales And Portfolio Administration Agreement Revised Page No. 1 November 1, 1997 Appendix C - Portfolio Information I. Contracts and Contract Rates The applicable demand costs shall be determined based upon the rates and charges specified in each Transporter's Tariff, including any applicable direct bills, surcharges, or as other costs specified by the sheets identified below, or other applicable sheets, as all of those sheets may be in effect from time to time, and costs arising under applicable agreements, for the applicable term of these agreements, including the agreements identified below, as well as this Agreement. While Seller and Buyer agree that the identified tariff sheets and agreements are intended to be a complete listing of the applicable tariff sheets and applicable agreements, they further agree that the omission of the reference of one or more sheets or agreements from that list will not affect Buyer's obligation to Seller for rates, charges and costs incurred thereunder. Seller shall provide to Buyer all Transporter refunds for the applicable terms which are received by Seller relative to Contracts or Contract Rates referenced below or relative to any agreements referencing the contracts below. Contract No. Contract Rate 11713 Sheet No. 11 11714 Sheet No. 5 11715 Sheet No. 5 11716 Sheet No. 5 11718 Sheet No. 5 11719 Tariff Letter 11720 Tariff Letter 11721 Sheet No. 5 03950 Sheet No. 5 Sheet No. 17 Sheet No. 17A Sheet No. 18 32300 Sheet No. 10 IGC-Appendix C Gas Sales And Portfolio Administration Agreement Revised Page No. 2 November 1, 1997 Appendix C - Portfolio Information Contract No. Contract Rate N0325 Sheet No. 10 T3780 Sheet No. 11 N0420 Sheet No. 10 T3739 Sheet No. 11 T9998 Sheet No. 11 800171 Sheet No. 35 830034 Sheet No. 30 400109 Sheet No. 43 WSS Appendix I PSS Appendix I WDS1 Appendix J.1 WDS2 Appendix J.2 WDS3 Appendix J.3 ADS1 Appendix K.1 ADS2 Appendix K.2 ADS3 Appendix K.3 IGC-Appendix C Gas Sales And Portfolio Administration Agreement Revised Page No. 3 November 1, 1997 Appendix C - Portfolio Information II. Transportation Credit 1. Seller shall provide to Buyer, as a credit against the Contract Rates, a Transportation Credit ("TC") for the sale from the Buyer to Seller of projected available annual portfolio entitlements. 2. The Transportation Credit shall be calculated from time to time to reflect changes in projected available annual entitlements, based on the following formula: TC = Base TC x Projected Available Annual Entitlements Base Available Annual Entitlements Where: a. Base TC = $1,864,290 b. Base Available Annual Entitlements = 35,843,831 Dth c. Projected Available Annual Entitlements = Total Entitlements - Normal Demand (i) Total Entitlements are the sum of the quantities of long haul pipeline transportation entitlements reserved by Buyer. (ii) Normal Demand is the projected normal weather quantity of Buyer's firm longhaul pipeline deliveries for firm customers. 3. The TC shall be divided among months based upon the projected available monthly entitlements. Amendment Seller and Buyer agree that this Appendix C may be amended from time to time by mutual agreement of the Parties, which ultimately will be memorialized in a revised Appendix C. PROLIANCE ENERGY LLC INDIANA GAS COMPANY, INC. By: /s/ Carl L. Chapman By: /s/ Timothy M. Hewitt Carl L. Chapman Timothy M. Hewitt Its: President Its: Vice President IGC-Appendix D Gas Sales And Portfolio Administration Agreement Second Revised Page No. 1 November 1, 1997 APPENDIX D - Supplier Reservation Costs Supplier Reservation Costs November 1, 1997 through October 31, 1998 I. Reserved Commodity Quantities a. Monthly Baseload Reserved Quantity (Dth/Day) System Central/ Month North/East Terre Greensburg South Haute November, 1997 30,768 40,000 1,500 0 December, 1997 70,000 50,000 1,500 0 January, 1998 80,000 50,000 2,500 0 February, 1998 80,000 50,000 2,000 0 March, 1998 30,768 45,000 1,500 0 April, 1998 65,000 28,000 1,200 5,000 May, 1998 65,000 13,000 1,200 5,000 June, 1998 65,000 13,000 1,200 5,000 July, 1998 65,000 13,000 1,200 5,000 August, 1998 65,000 13,000 1,200 5,000 September, 1998 65,000 13,000 1,200 5,000 October, 1998 65,000 13,000 1,200 5,000 Buyer and Seller agree that all or some portion of the quantities identified as Monthly Baseload Reserved Quantities may be provided at fixed or collared prices mutually agreed upon pursuant to pricing for Other Purchases under Appendix E. IGC-Appendix D Gas Sales And Portfolio Administration Agreement Second Revised Page No. 2 November 1, 1997 APPENDIX D - Supplier Reservation Costs b. Daily Swing Reserved Quantity (Dth/Day) System Central/ Month North/East Terre Greensburg South Haute November, 1997 192,810 67,722 5,077 46,192 December, 1997 153,578 82,722 5,077 46,192 January, 1998 143,578 82,722 4,077 46,192 February, 1998 143,578 82,722 4,577 46,192 March, 1998 192,810 74,722 5,077 46,192 April, 1998 158,578 17,327 2,628 16,066 May, 1998 158,578 32,327 2,002 15,000 June, 1998 115,000 24,000 1,460 11,000 July, 1998 75,000 24,000 1,260 9,000 August, 1998 100,000 26,000 1,260 10,000 September, 1998 158,578 32,327 2,066 14,000 October, 1998 158,578 32,327 3,945 16,066 II. Applicable Reservation Rates ($/Dth/Day) System Winter Months (Nov.-Mar.) Summer Months (Apr.-Oct.) Monthly Daily Monthly Daily Index Index Index Index Reserved Reserved Reserved Reserved Quantity Quantity Quantity Quantity North/East $0.0238 $0.0190 $0.0128 $0.0185 Central/Terre $0.0068 $0.0234 $0.0154 $0.0169 Haute Greensburg $0.0135 $0.0159 $0.0131 $0.0158 South $0.0068 $0.0234 $0.0154 $0.0169 IGC-Appendix D Gas Sales And Portfolio Administration Agreement Second Revised Page No. 3 November 1, 1997 APPENDIX D - Supplier Reservation Costs Assignment/Agency Administration of Supply Agreements Buyer and Seller agree that quantities reserved under supply reservation contracts entered into by Buyer prior to April 1, 1996, and for which Seller has accepted assignment or agency administration duties, shall be included in the Reserved Commodity Quantities with Applicable Reservation Rates as set forth in the original supply reservation contracts. Amendment Seller and Buyer agree that this Appendix D may be amended from time to time by mutual agreement of the Parties, which ultimately will be memorialized in a revised Appendix D. PROLIANCE ENERGY, LLC INDIANA GAS COMPANY, INC. By: /s/ Carl L. Chapman By: /s/ Timothy M. Hewitt Carl L. Chapman Timothy M. Hewitt Its: President Its: Vice President IGC-Appendix E Gas Sales And Portfolio Administration Agreement Revised Page No. 1 November 1, 1997 Appendix E- Commodity Purchases This Appendix E addresses the gas supply and other variable costs applicable to Nominated Daily Quantities and Balancing Quantities as identified below. For Monthly Baseload Purchases: Buyer shall pay to Seller each Contract Month an amount determined by multiplying the monthly baseload quantities of Gas scheduled for Buyer's purchase under this Agreement during the Contract Month, by a price per MMBtu determined using the first monthly index from Inside FERC's GAS MARKET REPORT, in the table "PRICES OF SPOT GAS DELIVERED TO INTERSTATE PIPELINES" for the applicable zone, specified below, for the applicable month, plus all other applicable variable costs as identified below shall apply. For Daily Swing Purchases: Buyer shall pay to Seller each Contract Month an amount determined by summing all applicable "Daily Amounts" for the Contract Month. A "Daily Amount" shall be calculated for each day during the Contract Month for which daily swing quantities of Gas have been confirmed for purchase. The "Daily Amounts" shall be determined by multiplying (a) the confirmed swing quantities of gas scheduled for the particular day of the Contract Month, by (b) a price per MMBtu determined using the Daily Midpoint Price reported in Gas Daily, in the table "DAILY PRICE SURVEY", for the applicable zone, specified below, for purchases for the applicable day. As to any day for which Gas Daily for any reason (e.g. holidays and weekends) does not publish the above referenced prices, the applicable prices shall be that utilized for the last prior day such is published. In addition all other applicable variable costs as identified below shall apply. For Other Purchases: For any purchases not covered by a specified pricing method, or for fixed price quantities, pricing shall be as negotiated and mutually agreed to in writing by the Parties. For Summer Storage Refill: For summer refill of leased storage, Buyer shall pay to Seller an amount based on averaging the seven summer monthly indices for the applicable supply area, and based upon presuming storage refill quantities to be equally split between the summer months. For summer refill of company storage, the parties will agree on the extent to which an index average method will be used, after consideration of the operational scheduling needs of company storage. In addition, all other applicable variable costs as identified below shall apply. IGC-Appendix E Gas Sales And Portfolio Administration Agreement Revised Page No. 2 November 1, 1997 Appendix E- Commodity Purchases For Storage Withdrawals: For quantities of storage withdrawals for which Buyer has previously paid for commodity, applicable storage withdrawal variable costs as identified below shall apply. For Applicable Indices: System Applicable Monthly Indices North/East PEPL - Texas, Oklahoma ANR - Louisiana Central/Terre Haute Texas Gas - Zone 1 Texas Gas - Zone SL South Texas Gas - Zone 1 Texas Gas - Zone SL Greensburg TETCO - East Louisiana TETCO - West Louisiana TETCO - East Texas TETCO - South Texas IGC-Appendix E Gas Sales And Portfolio Administration Agreement Revised Page No. 3 November 1, 1997 APPENDIX E- Commodity Purchases (Continued) System Applicable Daily Indices North/East PEPL - Oklahoma ANR - Louisiana - Onshore South Central/Terre Haute Texas Gas SL - Louisiana - Onshore South Texas Gas (entire Z1) - East Texas - North La. Area South Texas Gas SL - Louisiana - Onshore South Texas Gas (entire Z1) - East Texas - North La. Area Greensburg/Westport TETCO (ELA) - Louisiana - Onshore South TETCO (WLA) - Louisiana - Onshore South TETCO (ETX) - East Texas - North La. Area TETCO (STX) - South - Corpus Christi IGC-Appendix E Gas Sales And Portfolio Administration Agreement Revised Page No. 4 November 1, 1997 APPENDIX E- Commodity Purchases - Other Variable Costs The other variable costs applicable to Nominated Daily Quantities and Balancing Quantities shall be determined based upon the rates and charges applicable under each transporter's tariff, including the sheets identified below, as well as other applicable sheets, as all of those sheets may be in effect from time to time, and costs arising under applicable agreements, including the agreements identified below, as well as this Agreement. North/East PEPL Contract No. Contract Rate 11713 Sheet No. 11 11714 Sheet No. 5 11715 Sheet No. 5 11716 Sheet No. 5 11717 Sheet No. 5 11719 Tariff Letter 11720 Tariff Letter 11721 Sheet No. 5 WSS Appendix I PSS Appendix I ADS1 Appendix K.1 ADS2 Appendix K.2 WDS1 Appendix J.1 WDS2 Appendix J.2 IGC-Appendix E Gas Sales And Portfolio Administration Agreement Revised Page No. 5 November 1, 1997 APPENDIX E - Commodity Purchases - Other Variable Costs North/East ANR Contract No. Contract Rate 03950 Sheet No. 5 Sheet No. 17 Sheet No. 17A Sheet No. 19 32300 Sheet No. 10 Sheet No. 19 WDS2 Appendix J.2 ADS1 Appendix K.1 Central/Terre Haute System Texas Gas Z-3 Contract No. Contract Rate N0325 Sheet No. 10 Sheet No. 14 T3780 Sheet No. 11A Sheet No. 14 T9998 Sheet No. 11A Sheet No. 14 PSS Appendix I WDS2 Appendix J.2 ADS2 Appendix K.2 ADS3 Appendix K.3 IGC-Appendix E Gas Sales And Portfolio Administration Agreement Revised Page No. 6 November 1, 1997 APPENDIX E - Commodity Purchases - Other Variable Costs South System Texas Gas Z-4 Contract No. Contract Rate N0420 Sheet No. 10 T3739 Sheet No. 11A ADS3 Appendix K.3 Greensburg System Texas Eastern Contract No. Contract Rate 800171 Sheet No. 36 Sheet No. 126 Sheet No. 127 Sheet No. 128 Sheet No. 129 830034 Sheet No. 31 Sheet No. 126 Sheet No. 127 Sheet No. 128 Sheet No. 129 400109 Sheet No. 43 Sheet No. 126 Sheet No. 127 Sheet No. 128 Sheet No. 129 ADS2 Appendix K.2 ADS3 Appendix K.3 While Seller and Buyer agree that the identified tariff sheets and agreements are intended to be a complete listing of the applicable tariff sheets and applicable agreements, they further agree that the omission of the reference of one or more sheets or agreements from that list will not affect Buyer's obligation to Seller for rates, charges and costs incurred thereunder. IGC-Appendix E Gas Sales And Portfolio Administration Agreement Revised Page No. 7 November 1, 1997 APPENDIX E - Commodity Purchases - Other Variable Costs Amendment Seller and Buyer agree that this Appendix E may be amended from time to time by mutual agreement of the Parties, which ultimately will be memorialized in a revised Appendix E. PROLIANCE ENERGY, LLC INDIANA GAS COMPANY, INC. By: /s/ Carl L. Chapman By: /s/ Timothy M. Hewitt Carl L. Chapman Timothy M. Hewitt Its: President Its: Vice President IGC-Appendix G Gas Sales And Portfolio Administration Agreement Revised Page No. 1 November 1, 1997 G- Notices Invoice Information: Buyer: Seller: Indiana Gas Company, Inc. J. Groth Gas Control Department ProLiance Energy, LLC Attn.: Chris Kershner 135 North Pennsylvania Street 1630 North Meridian Street Suite 800 Indianapolis, IN 46202 Indianapolis, IN 46204-2482 (317) 321-0583 (317) 231-6808 Payments: Buyer: Seller: National City Bank Key Bank For the Account of: For the Account of: Indiana Gas Company, Inc. ProLiance Energy, LLC ABA #041001039 ACCT #6001805116 Supply Plans/Operational/Force Majeure: Buyer: Seller: Supply Plans Supply Plans Chris Kershner Stephen Miner (317) 321-0583 (317) 231-6828 Operational Operational Randy Gary Stephen Miner (317) 321-0507 (317) 231-6828 Force Majeure Force Majeure Randy Gary (317) 321-0507 Brian Azman - (317) 231-6830 Frank Lindsey (317) 321-0334 Stephen Miner - (317) 231-6828 Gas Controller on Duty (317) 321-0535 John Talley - (317)231-6806 Indiana Gas Company, Inc. ProLiance Energy, LLC 1630 North Meridian Street 135 North Pennsylvania Street Indianapolis, IN 46202 Suite 800 (317) 321-0787 (Telecopy) Indianapolis, Indiana 46204-2482 (317) 231-6901 (Telecopy) All Other Notices: Buyer: Seller: Gas Control Department ProLiance Energy , LLC Attn.: Randy Gary Attn: John R. Talley 1630 North Meridian Street 135 North Pennsylvania Street Indianapolis, IN 46202 Suite 800 Indianapolis, Indiana 46204-2482 IGC-Appendix G Gas Sales And Portfolio Administration Agreement Revised Page No. 2 November 1, 1997 APPENDIX G- Notices (Continued) Amendment Seller and Buyer agree that this Appendix G may be amended from time to time as provided in this Agreement, which amendment ultimately will be memorialized in a revised Appendix G. PROLIANCE ENERGY, LLC INDIANA GAS COMPANY, INC. By: /s/ Carl L. Chapman By: /s/ Timothy M. Hewitt Carl L. Chapman Timothy M. Hewitt Its: President Its: Vice President IGC-Appendix J.1 Gas Sales And Portfolio Administration Agreement Revised Page No. 1 Supersedes Appendix J November 1, 1997 APPENDIX J.1 - Winter Delivery Service Winter Delivery Service ("WDS1") 1. Seller shall provide Buyer with WDS1 with the following delivered service entitlements: Contract Month Maximum Daily WDS1 Maximum Annual WDS1 October* 10,000 Dth/day November 50,000 Dth/day 4,000,000 Dth during any December 50,000 Dth/day winter period. January 50,000 Dth/day February 50,000 Dth/day March 50,000 Dth/day April* 10,000 Dth/day 2. Buyer shall pay Seller as follows: a. For WDS1 Commodity: Summer purchase quantities will be determined jointly by the parties prior to April 1 of each year. During each summer month, Buyer shall pay Seller one seventh of the summer purchase quantity times the PEPL Monthly Index price. b. For WDS1 Variable Costs: PEPL Variable Cost Rates and Fuels under Contract Nos. 015333, 015335, 015332, 015334, 015347, and 015344. c. For WDS1 Demand Costs: PEPL Demand Costs under Contract Nos. 015333, 015335, 015332, 015334, 015347, and 015344 and other applicable pipeline costs, if any, as billed. * Subject to nomination and availability within Maximum Annual WDS1. IGC-Appendix J.1 Gas Sales And Portfolio Administration Agreement Revised Page No. 2 Supersedes Appendix J November 1, 1997 3. This WDS1 service expires March 31, 2000. 4. WDS1 shall be subject to the provisions of service reflected in Contract Nos. 015332, 015333, 015334, 015335, 015344, and 015347 as well as applicable FERC tariffs. 5. Additionally, Seller will provide Buyer a 10,000 Dth/Day point balancing service. Amendment Seller and Buyer agree that this Appendix J.1 may be amended from time to time by mutual agreement of the Parties which amendment ultimately will be memorialized in a revised Appendix J.1. PROLIANCE ENERGY, LLC. INDIANA GAS COMPANY, INC. By: /s/ Carl L. Chapman By: /s/ Timothy M. Hewitt Carl L. Chapman Timothy M. Hewitt Its: President Its: Vice President IGC-Appendix J.2 Gas Sales And Portfolio Administration Agreement Original Page No. 1 Supersedes Appendix J.1 November 1, 1997 APPENDIX J.2 - Winter Delivery Service 2 Winter Delivery Service ("WDS2") 1. WDS2 shall incorporate the no-notice features, cyclability, annual storage deliverability, and other service provisions ("Service Provisions") reflected in Contracts Numbers 33050, 99888,99889,99890,99891, as well as applicable FERC tariffs. 2. Seller shall provide Buyer with WDS2 with the following delivered service entitlements: Contract Months Maximum Daily WDS2 Maximum Annual WDS2 November 59,000 Dth/day 4,400,000 Dth during any winter period. December 59,000 Dth/day January 59,000 Dth/day February 59,000 Dth/day March 59,000 Dth/day April-October* Per Service Provisions Per Service Provisions 3. Buyer shall pay Seller as follows: a. For WDS2 Commodity: Summer purchase quantities will be determined jointly by the parties prior to April 1 of each year. During each summer month, Buyer shall pay Seller one-seventh of the summer purchase quantity times the agreed Monthly Index price. Other purchases shall be agreed upon by Buyer and Seller, pursuant to Appendix E. b. For WDS2 Variable Costs: Variable Cost Rates and Fuels under Contract Nos. 33050, 99888, 99889, 99890, and 99891. IGC-Appendix J.2 Gas Sales And Portfolio Administration Agreement Original Page No. 2 Supersedes Appendix J.1 November 1, 1997 c. For WDS2 Demand Costs: Demand Costs under Contract Nos. 33050, 99888, 99889, 99890, and 99891 and other applicable additional pipeline costs, if any, as billed. 4. Buyer and Seller shall complete all assignment, transfers, and/or other amendments necessary to effectuate this service. 5. This WDS2 service expires March 31, 2001. Amendment Seller and Buyer agree that this Appendix J.2 may be amended from time to time by mutual agreement of the Parties which amendment ultimately will be memorialized in a revised Appendix J.2. PROLIANCE ENERGY, LLC. INDIANA GAS COMPANY, INC. By: /s/ Carl L. Chapman By: /s/ Timothy M. Hewitt Carl L. Chapman Timothy M. Hewitt Its: President Its: Vice President IGC-Appendix J.3 Gas Sales And Portfolio Administration Agreement Original Page No. 1 November 1, 1997 APPENDIX J.3 - Winter Delivery Service 3 Winter Delivery Service 3 TETCO ("WDS3") 1. Seller shall provide Buyer with WDS3 with the following delivered service entitlements: Contract Month Maximum Daily WDS3 Maximum Annual WDS3 November 5,856 Dth/day 5,856 Dth times the number of days in the month. December 5,856 Dth/day January 5,856 Dth/day February 5,856 Dth/day March 5,856 Dth/day 2. Buyer shall pay Seller as follows: a. For WDS3 Commodity: Purchase quantities will be determined jointly by the parties and priced pursuant to Appendix E. b. For WDS3 Variable Costs: TETCO Variable Cost Rates and Fuels under Contract No. 830044. c. For WDS3 Demand Costs: TETCO Demand Costs under Contract No. 830044 and other applicable pipeline costs, if any as billed. 3. This WDS3 service expires October 31, 2000. 4. WDS3 shall be subject to the provisions of service reflected in Contract No. 830044 as well as applicable FERC tariffs. IGC-Appendix J.3 Gas Sales And Portfolio Administration Agreement Original Page No. 2 November 1, 1997 Amendment Seller and Buyer agree that this Appendix J.3 may be amended from time to time by mutual agreement of the Parties which amendment ultimately will be memorialized in a revised Appendix J.3. PROLIANCE ENERGY, LLC. INDIANA GAS COMPANY, INC. By: /s/ Carl L. Chapman By: /s/ Timothy M. Hewitt Carl L. Chapman Timothy M. Hewitt Its: President Its: Vice President Appendix K.1 Gas Sales And Portfolio Administration Agreement Original Page No. 1 Supersedes Appendix K November 1, 1997 APPENDIX K.1 - Annual Delivery Service Annual Delivery Service ("ADS1") 1. Seller shall provide Buyer with ADS1 with the following nominated delivered service entitlements: Contract Months Maximum Daily ADS1 Maximum Monthly ADS1 November 5,000 Dth/day 5,000 Dth times the number of days in the month. December 5,000 Dth/day January 5,000 Dth/day February 5,000 Dth/day March 5,000 Dth/day April 5,000 Dth/day May 5,000 Dth/day June 5,000 Dth/day July 5,000 Dth/day August 5,000 Dth/day September 5,000 Dth/day October 5,000 Dth/day Appendix K.1 Gas Sales And Portfolio Administration Agreement Original Page No. 2 Supersedes Appendix K November 1, 1997 2. Buyer shall pay Seller as follows: a. For ADS1 Commodity: Purchase quantities will be determined jointly by the parties and priced pursuant to Appendix E. b. For ADS1 Variable Costs: Variable Cost Rates and Fuels under Contract No. 70300 & 99887. c. For ADS1 Demand Costs: Demand Costs under Contract No. 70300 & 99887 and other applicable additional pipeline costs, if any, as billed. 3. This ADS1 service expires March 31, 2001. 4. ADS1 shall be subject to the provisions of service reflected in Contract No. 70300 & 99887 as well as applicable FERC tariffs. Amendment Seller and Buyer agree that this Appendix K.1 may be amended from time to time by mutual agreement of the Parties which amendment ultimately will be memorialized in a revised Appendix K.1. PROLIANCE ENERGY, LLC. INDIANA GAS COMPANY, INC. By: /s/ Carl L. Chapman By: /s/ Timothy M. Hewitt Carl L. Chapman Timothy M. Hewitt Its: President Its: Vice President IGC-Appendix K.2 Gas Sales And Portfolio Administration Agreement Original Page No. 1 November 1, 1997 APPENDIX K.2 - Annual Delivery Service 2 Annual Delivery Service 2 TETCO ("ADS 2") 1. Seller shall provide Buyer with ADS2 with the following delivered Service entitlements: Contract Months Maximum Daily ADS2 Maximum Monthly ADS2 November 3,000 Dth/day 3,000 Dth times the number of days in the month. December 3,000 Dth/day January 3,000 Dth/day February 3,000 Dth/day March 3,000 Dth/day April 3,000 Dth/day May 3,000 Dth/day June 3,000 Dth/day July 3,000 Dth/day August 3,000 Dth/day September 3,000 Dth/day October 3,000 Dth/day IGC-Appendix K.2 Gas Sales And Portfolio Administration Agreement Original Page No. 2 November 1, 1997 2. Buyer shall pay Seller as follows: a. For ADS2 Commodity: Purchase quantities will be determined jointly by the parties and priced pursuant to Appendix E. b. For ADS2 Variable Costs: TETCO Variable Cost Rates and Fuels under Contract No. 830043. c. For ADS2 Demand Costs: TETCO Demand Costs under Contract No. 830043 and other applicable pipeline costs, if any as billed. 3. This ADS2 service expires October 31, 2000. 4. ADS2 shall be subject to the provisions of service reflected in Contract No. 830043 as well as applicable FERC tariffs. Amendment Seller and Buyer agree that this Appendix K2 may be amended from time to time by mutual agreement of the Parties which amendment ultimately will be memorialized in a revised Appendix K2. PROLIANCE ENERGY, LLC. INDIANA GAS COMPANY, INC. By: /s/ Carl L. Chapman By: /s/ Timothy M. Hewitt Carl L. Chapman Timothy M. Hewitt Its: President Its: Vice President IGC-Appendix K.3 Gas Sales And Portfolio Administration Agreement Original Page No. 1 November 1, 1997 APPENDIX K.3 - Annual Delivery Service 3 Annual Delivery Service 3 TGT ("ADS3") 1. Seller shall provide Buyer with ADS3 with the following delivered Service entitlements: Contract Months Maximum Daily ADS Maximum Monthly ADS November 5,856 Dth/day 5,856 Dth times the number of days in the month. December 5,856 Dth/day January 5,856 Dth/day February 5,856 Dth/day March 5,856 Dth/day April 5,856 Dth/day May 5,856 Dth/day June 5,856 Dth/day July 5,856 Dth/day August 5,856 Dth/day September 5,856 Dth/day October 5,856 Dth/day IGC-Appendix K.3 Gas Sales And Portfolio Administration Agreement Original Page No. 2 November 1, 1997 2. Primary Receipt Point: TGT ANR Slaughters Mtr. Secondary Receipt Point: Indiana Gas Meter #1440. 3. Primary Delivery Point is the Lebanon Lateral. Secondary within the path is Indiana Gas Meter #1702. 4. Buyer shall pay Seller as follows: a. For ADS3 Commodity as follows: Purchase quantities will be determined jointly by the parties and priced pursuant to Appendix E. b. For ADS3 Variable Costs: TGT Variable Cost Rates and Fuels under Contract No. T11825. c. For ADS3 Demand Costs: TGT Demand Costs under Contract No. T11825 and other applicable pipeline costs, if any as billed. 3. This ADS3 service expires October 31, 2000. 4. ADS3 shall be subject to the provisions of service reflected in Contract No. T11825 as well as applicable FERC tariffs. Amendment Seller and Buyer agree that this Appendix K.3 may be amended from time to time by mutual agreement of the Parties which amendment ultimately will be memorialized in a revised Appendix K.3. PROLIANCE ENERGY, LLC. INDIANA GAS COMPANY, INC. By: /s/ Carl L. Chapman By: /s/ Timothy M. Hewitt Carl L. Chapman Timothy M. Hewitt Its: President Its: Vice President