1 Exhibit 10.25 TENNESSEE GAS PIPELINE Tenneco Building A Tenneco Company P. 0. Box 2511 Houston, Texas 77252-2511 (713) 757-2131 December 9, 1994 JIM SNYDER MOUNTAINEER GAS Co P.O. BOX 3152 CHARLESTON, WV 25332 RE: Amendment No. 1 to Gas Transportation Agreement Dated October 1st, 1994 Service Package No. 8396 Dear Jim: TENNESSEE GAS PIPELINE COMPANY and MOUNTAINEER GAS CO, agree to amend the Agreement effective October 10th, 1994, to change the Primary Meters and the associated Meter Quantities as reflected in the Attached Revised Exhibit A-1. Except as amended herein, all terms and provisions of the Agreement shall remain in full force and effect as written. If the foregoing is in accordance with your understanding of the Agreement, please so indicate by signing and returning to my attention both originals of this letter. Upon Tennessee's execution, an original will be forwarded to you for your files. Should you have any questions, please do not hesitate to contact me at (713) 757-3720. Best regards, TENNESSEE GAS PIPELINE COMPANY /s/ Greg Jallans Greg Jallans, Account Manager Central Region ACCEPTED AND AGREED TO This 5th Day of May, 95 MOUNTAINEER GAS CO By: /s/ Richard L. Grant --------------------------------------- Title: Agent and Attorney in Fact ACCEPTED AND AGREED TO This 28th Day of June, 1995 TENNESSEE GAS PIPELINE COMPANY By: [illegible] --------------------------------------- Director, Transportation Services Central Region -8- 2 GAS TRANSPORTATION AGREEMENT EXHIBIT "A-1" SHOWING REQUESTED CHANGES AMENDMENT #1 TO GAS TRANSPORTATION AGREEMENT DATED October 1, 1994 BETWEEN TENNESSEE GAS PIPELINE COMPANY AND MOUNTAINEER GAS CO MOUNTAINEER GAS CO EFFECTIVE DATE OF AMENDMENT: October 10, 1994 RATE SCHEDULE: FT-A SERVICE PACKAGE: 8396 SERVICE PACKAGE TQ: 4,825 Dth INTERCONNECT BILLABLE- METER METER NAME PARTY NAME COUNTY ST ZONE R/D LEG METER-TQ TQ - ---------------------------------------------------------------------------------------------------------------------- 010008 UNION - WARDNER COASTAL UNION PACIFIC FUELS NUECES TX 00 R 100 -223 -223 PLT DEH INC 011034 COLUMBIA GULF-EGAN DEHYD COLUMBIA GULF ACADIA LA 01 R 800 -2,573 -2,573 EXCH TRANSMISSION CO 011750 S MARSH IS BLK 243c MOBIL NATURAL GAS OFFSHORE- OL 01 R 500 1,371 1,371 INC FEDERA 012125 HALLWOOD - HALLWOOD PETROLEUM LAFAYETTE LA 01 R 800 1,425 1,425 FRED AKERS #1 INC Total Receipt TQ: 0 0 Total Delivery TQ: 0 0 NUMBER OF RECEIPT POINTS AFFECTED: 4 NUMBER OF DELIVERY POINTS AFFECTED: 1 -9-