Nicor Gas Company 
Form 10-K
                                                          Exhibit 10.15
 
FINAL ALLOCATION AGREEMENT

This Final Allocation Agreement (“Agreement”) is entered into this 3rd day of
January, 2008, by and between Northern Illinois Gas Company d/b/a Nicor Gas
Company (“Nicor”) and Commonwealth Edison Company (“ComEd”) (each a
“Utility,”and collectively, the “Utilities”), to reflect the Utilities’agreement
concerning the final allocation of certain costs relating to particular former
manufactured gas plant (“MGP”) sites (“Sites”) in Illinois.
WHEREAS, without admitting any liability, the Utilities entered into an Interim
Cooperative Agreement dated October 28, 1993, and subsequently amended (“ICA”),
to allow the Utilities to address certain issues at certain MGP Sites on an
interim basis; and
WHEREAS, without admitting any liability, the Utilities have in the past
incurred, and expect in the future to incur, Shared Costs relating to these MGP
Sites; and
WHEREAS, the ICA provides for a Final Cost Allocation by negotiation or
arbitration; and
WHEREAS, to obtain a Final Cost Allocation pursuant to the ICA, Nicor initiated
arbitration that is currently pending and captioned Northern Illinois Gas
Company v. Commonwealth Edison Company, CPR File No. G-06-26H (“Arbitration”);
and
WHEREAS, the parties and the arbitration panel haveagreed that the Arbitration
shall be stayed pending the Illinois Commerce Commission’s (“ICC”) approval of
this Agreement; and
 
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        WHEREAS, the Utilities entered into a Memorandum of Understanding
(“MOU”) on July 20, 2007, to reflect the Utilities’agreement in principle
concerning the Final Cost Allocation of Shared Costs relating to these MGP
Sites; and
WHEREAS, in the MOU, the Utilities agreed to use their best efforts and to act
in good faith promptly to negotiate and execute this Agreement; and
WHEREAS, the Utilities have reached anAgreement, as detailed herein;
NOW THEREFORE, based on the covenants and mutual promises contained herein,
Nicor and ComEd agree as follows:
1.
Definitions
  1.1.  The following terms, as used anywhere in this Agreement, have the same
meaning that they have in the ICA:  “Shared Costs,”“Final Cost Allocation,”and
“Coordinator/Utility.”

2.
Final Cost Allocation

 
2.1.  Except as specified in paragraph 2.3, with respect to the Sites listed on
Attachment A to this Agreement, the Final Cost Allocation shall be and shall
result in Nicor being responsible for 51.73 percent, and ComEd being responsible
for 48.27 percent, of any and all past and future Shared Costs.

 
2.2.  Except as specified in paragraph 2.3, with respect to the Sites listed on
Attachment B to this Agreement, the Final Cost Allocation shall be and shall
result in Nicor being responsible for 0 percent, and ComEd being responsible for
100 percent, of any and all past and future Shared Costs.  ComEd will become the
Coordinator/Utility at any and all Sites listed on Attachment B other than the
Site described on Attachment B as “MGP Site at Clinton and Jackson, Ottawa,
Illinois.”

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2.3.  The parties recognize that there may be Shared Costs that do not relate
exclusively either to the Sites listed on Attachment A or to the Sites listed on
Attachment B, but rather relate to the Utilities’MGP remediation program in
general (“Program Costs”).  Program Costs could include, by way of example and
without limitation, costs associated with site prioritization, costs associated
with jointly owned equipment and costs associated with producing documentation
to provide general instructions to contractors relating to the site
investigations and remediations.   TheFinal Cost Allocation shall be and shall
result in Nicor being responsible for 50 percent, and ComEd being responsible
for 50 percent, of any and all past and future Program Costs.

 
2.4.  On the date of ICC approval of this Agreement, to the extent that either
Utility has paid more or less than the amounts determined by the percentages in
paragraphs 2.1 through 2.3 of this Agreement, appropriate credits and debits, if
required, will be made promptly to reflect the agreed upon percentage of each
Utility’s Final Cost Allocation, as specified in paragraphs 2.1 through
2.3.  These credits and debits will be reflected in invoices for future
remediation costs at Sites listed on Attachment A.

3.
ICC Approval

 
3.1.  This Agreement, including the prudence and reasonableness of the Final
Cost Allocations set forth in section 2 and the indemnities set forth in section
5 below, is subject to and contingent upon approval by the ICC.

 
3.2.  The Utilities agree to use their best efforts, and to act in good faith,
promptly to seek and obtain ICC approval of this Agreement, including the Final
Cost Allocations and indemnities set forth herein.

 
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3.3.  In the event that the ICC does not approve this Agreement, including the
Final Cost Allocations and indemnities set forth herein, this Agreement and the
MOU shall be void,but the ICA shall remain in full force and effect.

 
3.4.  In the event that the ICC approves this Agreement, including the Final
Cost Allocations and indemnities set forth herein, (a) this Agreement shall
supersede the MOU, (b) this Agreement shall control in the event of any conflict
between this Agreement and the MOUor any conflict between this Agreement and the
ICA, and (c) the date of such approval shall be the Effective Date of this
Agreement.

 
3.5.  If, before the ICC approvals contemplated by this Agreement become final
and non-appealable, the Illinois General Assembly approves a change in Illinois
law such that either party reasonably anticipates that it may be prevented by
such change from obtaining, in whole or in part, recovery from customers of
Shared Costs, then either party so potentially affected by such legislative
action shall have the right to terminate the MOU and this Agreement, by giving
notice of such termination to the other party within thirty (30) days of such
change.  In the event of such termination, neither Utility shall have any
continuing obligation under either the MOU or this Agreement.

4.
Pending Arbitration

 
4.1.  Upon execution of this Agreement, the Utilities will jointly request that
the stay of Arbitration be continued pending the ICC’s review and approval of
this Agreement, including the Final Cost Allocations and the indemnities set
forth herein.

 
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4.2.  If and when a final Order of the ICC approving this Agreement, including
the Final Cost Allocations and indemnities set forth herein,becomes
non-appealable, the Utilities will request that the Arbitration be dismissed
with prejudice.

 
4.3.  In the event the ICC does not approve this Agreement, including the Final
Cost Allocations and indemnities set forth herein, or in the event of
termination of this Agreement as provided in paragraph 3.5, either Utility may
reinstate the Arbitration, in which case neither Utility will be deemed to have
waived any claim, right, or defense as a result of the MOU or this Agreement,
and neither the MOU nor this Agreement nor any communication or document related
to either will be admissible in any way in any reinstated Arbitration.

5.
Release and Indemnity

 
5.1.  Effective upon a final Order of the ICC approving this Agreement,
including the Final Cost Allocations and indemnities set forth herein, becoming
non-appealable, each Utility releases the other from all claims for liability
with respect to Shared Costs (other than as may arise out of the agreed Final
Cost Allocations described in section 2 and except as may be necessary to
effectuate the indemnities provided in paragraphs 5.2 and 5.3).

 
5.2.  Effective upon a final Order of the ICC approving this
Agreement, including the Final Cost Allocations and indemnities set forth
herein, becoming non-appealable,
each Utility hereby indemnifies and agrees to defend and hold harmless the other
against liability, including but not limited to any liability arising out of or
relating to remediation, to any third party arising out of or relating to any of
the Sites listed on Attachment A, for costs that are recoverable through the
indemnifying party’s rider

 

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  described hereafter (as such rider(s) may be amended from time to time): 
ComEd’s Rider ECR (Ill. C. C. No. 4, sheet nos. 438 through 440.2, filed Aug.
11, 2006) or Nicor’s Rider 12 (Ill. C. C. No. 16, sheet nos. 68-70, filed Sept.
30, 2005).  The indemnification provided in this paragraph 5.2 is limited to the
amount necessary to allow the Utilities to share in such third-party liability
in the same proportion as the Final Cost Allocations set out in paragraph
2.1.  The indemnification provided in this paragraph is in addition to any other
indemnification rights, common law or otherwise, that the parties may have.
 
5.3.  Effective upon a final Order of the ICC approving this Agreement,
including the Final Cost Allocations and indemnities set forth herein, becoming
non-appealable, ComEd hereby indemnifies and agrees to defend and hold harmless
Nicor against liability, including but not limited to any liability arising out
of or relating to remediation, to any third party arising out of or relating to
any of the Sites listed on Attachment B, for costs that are recoverable through
ComEd’s Rider ECR (Ill. C. C. No. 4, sheet nos. 438 through 440.2, filed August
11, 2006), as such rider may be amended from time to time. The indemnification
provided in this paragraph is in addition to any other indemnification rights,
common law or otherwise, that the parties may have.

6.
Entire Agreement.  This Agreement and the Attachments to this Agreement (which
are part of this Agreement) constitute the entire understanding of the Utilities
with respect to this Agreement.  No modification may be made to this Agreement
except one signed by both Utilities that expressly states that it modifies this
Agreement.

 
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7.
Successors and Assigns.  This Agreement shall be binding upon the successors and
assigns of the Utilities; provided that neither Utility can assign its rights
under this Agreement without the other Utility’s consent.

8.
Applicable Law.  This Agreement shall be interpreted under the laws of the State
of Illinois.

9.
Dispute Resolution. The parties agree to attempt to resolve any dispute arising
out of or relating to this Agreement or its breach through good faith
negotiation.  If good faith negotiation fails to resolve the dispute, then the
parties agree to submit the dispute to non-binding mediation and acknowledge
that the role of the mediator is not to render a decision, but to assist the
parties in reaching a mutually acceptable resolution.  No party shall be bound
by anything said or done in the course of mediation other than through an
agreement in writing executed by both Utilities.  If mediation fails to settle
the dispute, then the parties agree that the dispute shall be settled by
arbitration under and in accordance with the ICA. 

10.
Nonwaiver.  The Utilities do not admit liability at any of the Sites listed in
Attachments A or B.  Except as otherwise provided in this Agreement, the
Utilities do not waive any rights or defenses, including rights to seek recovery
of any costs that are recoverable through their respective
environmental-cost-recovery riders, as described in paragraph 5.2.

11.
Method of Execution.  This Agreement may be executed in multiple counterparts,
each of which shall be deemed an original, but all of which together shall
constitute one and the same agreement.

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Executed as of the date set forth above

COMMONWEALTH EDISON COMPANY

By            ___________________________________

___________________________________
    [print name and title]

NORTHERN ILLINOIS GAS COMPANY d/b/a Nicor Gas Company

By            ___________________________________

___________________________________
    [print name and title]

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ATTACHMENT A1
 
1.
Aurora Gas Light Company, River St. at North Avenue Bridge, Aurora

 
2.
Belvidere Gas, Light & Fuel, Locust Street, Belvidere

 
3.
Chicago Heights Gas Company, 17th & State Street, Chicago Heights

 
4.
Cicero gas Company, Lombard & Garfield, Oak Park

 
5.
Coal Products manufacturing Company, North Broadway, Lockport

 
6.
Freeport Gas, Light & Coke Company, Liberty & Jackson St., Freeport

 
7.
Geneseo Electric Light & Gas Company, Oakwood & First St., Geneseo

 
8.
Illinois Northern Utility Company, Market & 14th, DeKalb

 
9.
Illinois Northern Utilities Company, 227 Miller, Sterling
  10.  Joliet Gaslight Company, Station B, North Broadway & Ingalls St., Joliet
  11.  Kankakee Gas Company, Birch& Harrison St., Kankakee   12.  LaGrange Gas
Company, 47th & Bluff St., LaGrange   13.  Lemont Gas, Light Company, Main &
Lockport Rd., Lemont   14.  Lincoln Water, Light & Gas Company, Sangamon &
Dacatur St., Lincoln   15.  Lockport Gas Company, 17th & I & M Canal, Lockport  
16.  Mendota Gas Company, Fifth St. & Ninth Ave., Mendota   17.  Morris gas
Company, Nettle & Jackson St., Morris   18.  Morrison Gas & Electric, Market &
S. Orange, Morrison

 

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1 The Utilities do not admit liability at any of these Sites.  Except as
otherwise provided in this Final Allocation Agreement, the Utilities do not
waive any rights or defenses, including rights to seek recovery of any costs
that are recoverable through their respective environmental-cost-recovery
riders, meaning ComEd’s Rider ECR and Nicor’s Rider 12.
 
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  19. Northwestern Gas, Light & Coke Company, 912 Clark St., Evanston   20. 
Northwestern Gas, Light & Coke Company, Maple & Vermont, Blue Island
  21. 
Northwestern Gas, Light & Coke Co./Niles Center Station, Oakton St. & McCormick
Blvd., Skokie
  22. 
Ottawa Gas, Light & Coke Company, Illinois & Walker St., Ottawa
  23. 
Pontiac Light & Water Company, Vermillion & Water St., Pontiac
  24. 
Streator Gas, Light & Coke Co., Water St. & Vermillion Rr., Streator

 
 

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ATTACHMENT B2
 
1.
MGP Site on Coal Gas Road, DuQuoin, Illinois

 
2.
MGP Site on Bluff Street, Joliet, Illinois

 
3.
MGP Site on Center Street, Geneseo, Illinois

 
4.
MGP Site at Clinton and Jackson, Ottawa, Illinois

 
5.
Dixon I (2nd St.)

 
6.
Dixon II (River & Perry)

 
7.
DuQuoin (Chestnut)

 
8.
Elgin TDC-570-0044

 
9.
Kenilworth
  10. Mendota (Main St.)   11. Murphysboro I (Walnut)   12. Murphysboro II (Big
Muddy)   13. Rockford (Avon & Cedar)   14. Rockford II (Mulberry)

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2 The Utilities do not admit liability at any of these Sites.  Except as
otherwise provided in this Final Allocation Agreement, the Utilities do not
waive any rights or defenses, including rights to seek recovery of any costs
that are recoverable through their respective environmental-cost-recovery
riders, meaning ComEd’s Rider ECR and Nicor’s Rider 12.

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