Caledonia may reject or accept such other forms of Financial Assurances in a
manner that is not unduly discriminatory; or
   
          (d)     Customer shall prepay for service or establish an 
interest-bearing escrow account to which Caledonia will have access to
payments for service in an amount as set forth immediately
below.
   
The dollar value of the Financial Assurances set forth above in this Section
24.12 to be provided by Customer shall be in an amount equal to Customer s
Credit Exposure, except for Customers taking service pursuant to Rate
Schedules AILS or ILS, in which case the amount shall be equal to the
Customer s Credit Exposure minus Customer s Unsecured Collateral Limit.
Caledonia shall recalculate the dollar value of the Financial Assurances
Customer is required to provide from time to time, but not more often than on
a daily basis.  Caledonia shall notify Customer when such recalculation
indicates that additional credit support is required to comply with this
Section.  Customer shall have one (1) Business Day to comply with a
notification by Caledonia of insufficient credit support.
   
     24.13     Customer s obligation to maintain an Acceptable Credit Rating
or to provide Financial Assurances shall continue for so long as the Parties
are bound by the Service Agreements and all transactions entered into
thereunder.  This obligation shall terminate when Customer has performed or
satisfied all of its obligations under the Service Agreements.  Upon the
termination of the Service Agreement, Caledonia shall return to Customer, if
applicable:
   
          (a)     the Letter of Credit and funds held by Caledonia as security
pursuant to Section 24.12(a) then in its possession but only to the extent it
has not then applied such funds pursuant to this FERC Gas Tariff to the debts,
expenses, costs, assessments and liabilities payable by Customer to Caledonia
pursuant to the provisions of the Service Agreements;
   
          (b)     the Guarantee held by Caledonia pursuant to Section
24.12(b);
   
          (c)     any security accepted by Caledonia pursuant to Section
24.12(c); or
   
          (d)     any amount prepaid by Customer pursuant to Section 24.12(d)
not required to pay charges for service rendered under the Service
Agreements.
   
     24.14     Any prepayment is considered collateral held for security and
not advance payments for Services,  Any prepayment held by Caledonia shall
accrue interest at the rate specified in Section 154.501(d) of the
Commission s regulations.