FORM OF SERVICE AGREEMENT
                   (For Use Under Sellers Rate Schedule IS)
                                  (Continued)
   
                                  EXHIBIT "A"
                                      to
                               Agreement between
   
                    Blue Lake Gas Storage Company (Seller)
                                      and
   
                    ____________________________ (Customer)
   
                        Dated ________________________
   
   
   
      I.    MAXIMUM DAILY INJECTION QUANTITY (Dth)
   
      II.   MAXIMUM DAILY WITHDRAWAL QUANTITY (Dth), which shall be the
            greater of one thirtieth (1/30) of the Working Storage Gas as
            of the last Day of the prior Month or one thirtieth (1/30) of
            the Working Storage Gas as of the date that Seller notifies
            Customer that it must withdraw all of its Working Storage Gas
            within forty-five (45) Days.
   
      III.  MAXIMUM STORAGE QUANTITY (Dth)
   
      IV.   RATES AND CHARGES - Maximum Rates as set forth on Sheet No. 5
            of Sellers Tariff unless otherwise agreed to.
   
      V.    ADDITIONAL CHARGES - Pursuant to Section 5 of Rate Schedule IS.