[EXHIBIT 10tt TO COLONIAL GAS COMPANY
               FORM 10-K FOR YEAR ENDING 12/31/93]                              


                        SERVICE AGREEMENT
            APPLICABLE TO THE STORAGE OF NATURAL GAS
                   UNDER RATE SCHEDULE GSS-II
                                
           AGREEMENT made as of this September 30, 1993, by  and
between  CNG  TRANSMISSION CORPORATION, a  Delaware  corporation,
hereinafter  called  "Pipeline,"  and  COLONIAL  GAS  COMPANY,  a
Massachusetts corporation, hereinafter called "Customer."

           WITNESSETH:   That  in  consideration  of  the  mutual
covenants  herein  contained,  the  parties  hereto  agree   that
Pipeline will store natural gas for Customer during the term,  at
the  rates  and on the terms and conditions hereinafter  provided
and, with respect to gas delivered by each of the parties to  the
other,  under and subject to Pipeline's Rate Schedule GSS-II  and
all  of  the General Terms and Conditions contained in Pipeline's
FERC  Gas  Tariff  and any revisions thereof  that  may  be  made
effective hereafter:

                            ARTICLE I
                           Quantities

           Beginning as of October 1, 1993 and thereafter for the
remaining  term of this agreement, Customer agrees to deliver  to
Pipeline and Pipeline agrees to receive for storage in Pipeline's
underground storage properties, and Pipeline agrees to inject  or
cause  to be injected into storage for Customer's account, store,
withdraw  from  storage,  and deliver to  Customer  and  Customer
agrees  to  receive, quantities of natural gas as  set  forth  on
Exhibit A, attached hereto.

                           ARTICLE II
                              Rate

           A.    For  storage  service rendered  by  Pipeline  to
Customer  hereunder,  Customer shall pay Pipeline  in  accordance
with  Rate Schedule GSS-II contained in Pipeline's effective FERC
Gas Tariff or any effective superseding rate schedule.  Said rate
schedule  or superseding rate schedule and any revisions  thereof
which shall be filed and made effective shall apply to and  be  a
part of this Agreement.  Pipeline shall have the right to propose
to  and  file  with the Federal Energy Regulatory  Commission  or
other  body  having jurisdiction, changes and  revisions  of  any
effective rate schedule, or to propose and file superseding  rate
schedules,  for  the purpose of changing the rate,  charges,  and
other  provisions  thereof effective as  to  Customer;  provided,
however,  that  any request by Pipeline to amend  the  terms  and
conditions  of Rate Schedule GSS-II must be consistent  with  the
terms and conditions of Article VII, Part 2, Paragraph (F) of the
Stipulation  filed on March 31, 1993 by Pipeline  in  Docket  No.
RS92-14  and conform to the requirements of Section 7(b)  of  the
Natural  Gas  Act,  if  applicable,  and  provided  further  that
Pipeline  and Customer agree that they will not seek to place  in
effect  a change in any aspect of the terms and conditions  under
Section 8 of Rate Schedule GSS-II for a period of two years  from
the  date  of such request.  The filing of requests, changes  and
revisions  of Rate Schedule GSS-II shall be without prejudice  to
the right of Customer to contest or oppose such requests, filings
or revisions and their effectiveness.

          B.   The Storage Demand Charge and the Storage Capacity
Charge provided in the aforesaid rate schedule shall commence  on
October 1, 1993.

                           ARTICLE III
                        Term of Agreement

           Subject  to all the terms and conditions herein,  this
Agreement  shall  be effective as of October 1, 1993,  and  shall
continue in effect for a primary term through and including March
31,  2012,  and  for subsequent annual terms of April  1  through
March 31 thereafter, until either party terminates this Agreement
by giving written notice to the other at least twenty-four months
prior to the start of an annual term.

                           ARTICLE IV
                 Points of Receipt and Delivery

           The Points of Receipt for Customer's tender of storage
injection   quantities,  and  the  Point(s)   of   Delivery   for
withdrawals  from  storage  shall  be  specified  on  Exhibit  A,
attached hereto.

                            ARTICLE V
                          Miscellaneous

           A.    No  change, modification or alteration  of  this
Agreement shall be or become effective until executed in  writing
by the parties hereto; provided, however, that the parties do not
intend   that  this  Article  V.A.  requires  a  further  written
agreement  either  prior to the making of any request  or  filing
permitted  under Article II hereof or prior to the  effectiveness
of  such  request  or filing after Commission approval,  provided
further, however, that nothing in this Agreement shall be  deemed
to  prejudice any position the parties may take as to whether the
request,  filing or revision permitted under Article II  must  be
made under Section 7 or Section 4 of the Natural Gas Act.

          B.   Any notice, request or demand provided for in this
Agreement,  or any notice which either party may desire  to  give
the  other,  shall  be  in  writing and  sent  to  the  following
addresses:

     Pipeline:      CNG Transmission Corporation
                    445 West Main Street
                    Clarksburg, West Virginia  26301
                    Attention:  Vice President, Marketing
                                and Customer Services
     Customer:      Colonial Gas Company
                    40 Market Street
                    Lowell, MA   01852
                    Attention:  John P. Harrington

                    Colonial Gas Company
                    40 Market Street
                    Lowell, MA   01852
                    Attention:  Joseph P. Murphy


or  at  such  other  address as either party shall  designate  by
formal written notice.

           C.    No  presumption shall operate  in  favor  of  or
against  either  party hereto as a result of  any  responsibility
either party may have had for drafting this Agreement.

           D.    The  subject headings of the provisions of  this
Agreement  are inserted for the purpose of convenient  reference,
and  are not intended to become a part of or to be considered  in
any interpretations of such provisions.

                           ARTICLE VI
                         Prior Contracts

           This Service Agreement shall supersede and cancel,  as
of  the effective date, the Service Agreement for storage service
between Customer and Pipeline dated June 23, 1989.

          IN WITNESS WHEREOF, the parties hereto have caused this
Agreement to be signed by their duly authorized officials  as  of
the day and year first above written.

                              CNG TRANSMISSION CORPORATION
                                             (Pipeline)
                              
                              
                              By: _________________________
                              Its:      Vice President
                              
                              
                              
                              
                              
                              COLONIAL GAS COMPANY
                                            (Customer)
                              
                              
                              By:  John P. Harrington
                              Its: Vice President, Gas Supply
                                             (Title)



                            EXHIBIT A
                To The Storage Service Agreement
                    Dated September 30, 1993
            Between CNG Transmission Corporation and
                      Colonial Gas Company


A.   Quantities

           The  quantities of natural gas storage  service  which
Customer  may utilize under this Service Agreement,  as  well  as
Customer's applicable Billing Determinants, are as follows:

     1.   Storage Capacity of 222,200 Dekatherms (Dt), and

     2.   Storage Demand of 2,222 Dt per day.


B.   Points of Receipt and Delivery

  1. The  Points  of  Receipt for Customer's  tender  of  storage
     injection   quantities,  and  the  maximum  quantities   and
     character  of service for each point shall be as  set  forth
     below.   Each of the parties will use due care and diligence
     to  assure that uniform pressures will be maintained at  the
     Receipt  Point  as  reasonably may  be  required  to  render
     service  hereunder,  but Pipeline will not  be  required  to
     accept  gas  at  less  than the minimum pressures  specified
     herein.

     a.   Up  to  1,234 Dt per Day at the interconnection of  the
          facilities  of Pipeline and Texas Eastern  Transmission
          Corporation  ("Texas Eastern") or Transcontinental  Gas
          Pipe  Line Corporation ("Transco") or other pipeline(s)
          in  Clinton  County, Pennsylvania, known as  the  Leidy
          Interconnection,  at  a pressure  sufficient  to  enter
          Pipeline's    facilities    at    the    point(s)    of
          interconnection.
                    
     b.   Upon  mutual agreement of Pipeline and Customer, up  to
          1,234  Dt  per  day  at other interconnections  on  the
          system  of Pipeline, at a pressure sufficient to  enter
          Pipeline's    facilities    at    the    point(s)    of
          interconnection.
                    
  2. The Points of Delivery for withdrawals from storage, and the
     maximum quantities and character of service for each  point,
     shall  be as set forth below.  Each of the parties will  use
     due care and diligence to assure that uniform pressures will
     be  maintained at the Delivery Points as reasonably  may  be
     required to render service hereunder, but Pipeline will  not
     be  required  to  deliver gas at greater  than  the  maximum
     pressures specified herein.

     a.   Up  to  2,222  Dt  per  Day at  an  existing  point  of
          interconnection between the facilities of Pipeline  and
          Texas    Eastern   Transmission   Corporation   ("Texas
          Eastern"), in Franklin County, Pennsylvania,  known  as
          the  Chambersburg Interconnection, at a pressure of not
          more than seven hundred (700) psig.
     
     b.   Upon  mutual agreement of Pipeline and Customer, up  to
          2,222 Dt per day at other interconnections between  the
          facilities of Pipeline and Texas Eastern, at a pressure
          sufficient to enter the system of Texas Eastern.
     
     c.   Upon  mutual agreement of Pipeline and Customer, up  to
          2,222  Dt  per  day  at other interconnections  on  the
          system  of Pipeline, at a pressure sufficient to enable
          delivery by Pipeline.
     
     d.   Up  to  2,222  Dt  per  Day at  an  existing  point  of
          interconnection between the facilities of Pipeline  and
          Texas Eastern, in Greene County, Pennsylvania, known as
          the  Crayne Interconnection, on an interruptible  basis
          if  operating conditions permit, at a pressure  of  not
          more than eight hundred sixty-five (865) psig.

     e.   Up  to  2,222 Dt per Day at the interconnection of  the
          facilities  of  Pipeline  and Texas  Eastern  or  other
          pipeline(s) in Westmoreland County, Pennsylvania, known
          as  the  Oakford  Interconnection, on an  interruptible
          basis if operating conditions permit, at a pressure  of
          not less than eight hundred fifty (850) psig.

  3. Pipeline  shall  deliver on a firm basis  up  to  Customer's
     Storage  Demand, as adjusted pursuant to Section 8  of  Rate
     Schedule GSS-II and Article V of this Service Agreement.




                         
                      SERVICE AGREEMENT
          APPLICABLE TO THE STORAGE OF NATURAL GAS
                 UNDER RATE SCHEDULE GSS-II
                              
                              
           AGREEMENT  made  as of this September 30,  1993,  by
and    between   CNG   TRANSMISSION   CORPORATION,   a   Delaware
corporation,  hereinafter  called "Pipeline,"  and  COLONIAL  GAS
COMPANY,   a   Massachusetts  corporation,   hereinafter   called
"Customer."

           WITNESSETH:   That  in  consideration  of  the  mutual
covenants  herein  contained,  the  parties  hereto  agree   that
Pipeline   will  store  natural  gas  for  Customer  during   the
term,   at   the   rates   and  on  the  terms   and   conditions
hereinafter  provided  and,  with respect  to  gas  delivered  by
each  of  the  parties  to  the  other,  under  and  subject   to
Pipeline's  Rate  Schedule GSS-II and all of  the  General  Terms
and  Conditions  contained  in Pipeline's  FERC  Gas  Tariff  and
any revisions thereof that may be made effective hereafter:

                          ARTICLE I
                         Quantities

           Beginning  as  of October 1, 1993 and  thereafter  for
the  remaining  term  of  this  agreement,  Customer  agrees   to
deliver   to   Pipeline  and  Pipeline  agrees  to  receive   for
storage   in  Pipeline's  underground  storage  properties,   and
Pipeline   agrees  to  inject  or  cause  to  be  injected   into
storage   for   Customer's   account,   store,   withdraw    from
storage,   and  deliver  to  Customer  and  Customer  agrees   to
receive,  quantities  of  natural gas as  set  forth  on  Exhibit
A, attached hereto.

                         ARTICLE II
                            Rate

           A.    For  storage  service rendered  by  Pipeline  to
Customer    hereunder,   Customer   shall   pay    Pipeline    in
accordance  with  Rate  Schedule GSS-II contained  in  Pipeline's
effective  FERC  Gas  Tariff  or any effective  superseding  rate
schedule.   Said  rate  schedule  or  superseding  rate  schedule
and   any  revisions  thereof  which  shall  be  filed  and  made
effective  shall  apply  to  and be a  part  of  this  Agreement.
Pipeline  shall  have  the  right to propose  to  and  file  with
the   Federal   Energy  Regulatory  Commission  or   other   body
having  jurisdiction,  changes and  revisions  of  any  effective
rate   schedule,   or  to  propose  and  file  superseding   rate
schedules,  for  the  purpose  of  changing  the  rate,  charges,
and   other   provisions  thereof  effective  as   to   Customer;
provided,  however,  that any request by Pipeline  to  amend  the
terms   and   conditions  of  Rate  Schedule   GSS-II   must   be
consistent  with  the  terms  and  conditions  of  Article   VII,
Part  2,  Paragraph  (F) of the Stipulation filed  on  March  31,
1993  by  Pipeline  in  Docket No. RS92-14  and  conform  to  the
requirements  of  Section  7(b)  of  the  Natural  Gas  Act,   if
applicable,  and  provided  further that  Pipeline  and  Customer
agree  that  they will not seek to place in effect  a  change  in
any  aspect  of  the  terms and conditions  under  Section  8  of
Rate  Schedule  GSS-II for a period of two years  from  the  date
of   such   request.   The  filing  of  requests,   changes   and
revisions  of  Rate  Schedule GSS-II shall be  without  prejudice
to  the  right  of Customer to contest or oppose  such  requests,
filings or revisions and their effectiveness.

            B.    The  Storage  Demand  Charge  and  the  Storage
Capacity   Charge  provided  in  the  aforesaid   rate   schedule
shall commence on October 1, 1993.


                         ARTICLE III
                      Term of Agreement

           Subject  to  all  the  terms  and  conditions  herein,
this  Agreement  shall be effective as of October  1,  1993,  and
shall  continue  in  effect  for  a  primary  term  through   and
including  March  31, 2012, and for subsequent  annual  terms  of
April   1  through  March  31  thereafter,  until  either   party
terminates  this  Agreement  by  giving  written  notice  to  the
other  at  least  twenty-four months prior to  the  start  of  an
annual term.

                         ARTICLE IV
               Points of Receipt and Delivery

            The  Points  of  Receipt  for  Customer's  tender  of
storage  injection  quantities,  and  the  Point(s)  of  Delivery
for  withdrawals  from  storage shall  be  specified  on  Exhibit
A, attached hereto.

                          ARTICLE V
                        Miscellaneous

           A.    No  change, modification or alteration  of  this
Agreement  shall  be  or  become  effective  until  executed   in
writing  by  the  parties  hereto; provided,  however,  that  the
parties  do  not  intend  that  this  Article  V.A.  requires   a
further  written  agreement either prior to  the  making  of  any
request  or  filing permitted under Article II  hereof  or  prior
to   the   effectiveness  of  such  request   or   filing   after
Commission  approval,  provided further,  however,  that  nothing
in  this  Agreement  shall be deemed to  prejudice  any  position
the  parties  may  take  as to whether  the  request,  filing  or
revision   permitted  under  Article  II  must  be   made   under
Section 7 or Section 4 of the Natural Gas Act.

           B.    Any  notice, request or demand provided  for  in
this  Agreement,  or  any notice which either  party  may  desire
to  give  the  other,  shall  be  in  writing  and  sent  to  the
following addresses:

     Pipeline:      CNG Transmission Corporation
                    445 West Main Street
                    Clarksburg, West Virginia  26301
                    Attention:  Vice President, Marketing
                                and Customer Services

     Customer:      Colonial Gas Company
                    40 Market Street
                    Lowell, MA   01852
                    Attention:  John P. Harrington

                    Colonial Gas Company
                    40 Market Street
                    Lowell, MA   01852
                    Attention:  Joseph P. Murphy


or  at  such  other  address as either party shall  designate  by
formal written notice.

           C.    No  presumption shall operate  in  favor  of  or
against    either   party   hereto   as   a   result    of    any
responsibility  either  party may  have  had  for  drafting  this
Agreement.

            D.    The  subject  headings  of  the  provisions  of
this  Agreement  are  inserted  for  the  purpose  of  convenient
reference,  and are not intended to become a part  of  or  to  be
considered in any interpretations of such provisions.

                         ARTICLE VI
                       Prior Contracts

           This  Service  Agreement shall supersede  and  cancel,
as  of  the  effective  date, the Service Agreement  for  storage
service between Customer and Pipeline dated June 23, 1989.


           IN  WITNESS  WHEREOF, the parties hereto  have  caused
this   Agreement   to   be  signed  by  their   duly   authorized
officials as of the day and year first above written.


                              CNG TRANSMISSION CORPORATION
                                             (Pipeline)
                              
                              
                              By: _________________________
                              Its:      Vice President
                              
                              
                              COLONIAL GAS COMPANY
                                            (Customer)
                              
                              
                              By:   John P. Harrington
                              Its:  Vice President, Gas Supply
                                             (Title)



                          EXHIBIT A
              To The Storage Service Agreement
                  Dated September 30, 1993
          Between CNG Transmission Corporation and
                    Colonial Gas Company


A.   Quantities

            The   quantities  of  natural  gas  storage   service
which  Customer  may  utilize under this  Service  Agreement,  as
well  as  Customer's  applicable  Billing  Determinants,  are  as
follows:

     1.   Storage Capacity of 10,400 Dekatherms (Dt), and

     2.   Storage Demand of 104 Dt per day.


B.   Points of Receipt and Delivery

  1. The  Point  of  Receipt  for Customer's  tender  of  storage
     injection   quantities,  and  the  maximum  quantities   and
     character  of  service  for  such  point  shall  be  as  set
     forth  below.   Each of the parties will use  due  care  and
     diligence   to  assure  that  uniform  pressures   will   be
     maintained  at  the  Receipt  Point  as  reasonably  may  be
     required  to  render service hereunder,  but  Pipeline  will
     not  be  required  to accept gas at less  than  the  minimum
     pressure specified herein.

          Up   to  58  Dt  per  Day  at  an  existing  point   of
          interconnection  between  the  facilities  of  Pipeline
          and  Texas  Eastern  Transmission  Corporation  ("Texas
          Eastern"),  in  Fayette  County,  Pennsylvania,   known
          as  the  North  Summit Interconnection, at  a  pressure
          of  not  less  than  seven  hundred  (700)  pounds  per
          square inch ("psig").
                    
  2. The   Points  of  Delivery  for  withdrawals  from  storage,
     and  the  maximum quantities and character  of  service  for
     each  point,  shall  be as set forth  below.   Each  of  the
     parties  will  use  due care and diligence  to  assure  that
     uniform   pressures  will  be  maintained  at  the  Delivery
     Points  as  reasonably  may be required  to  render  service
     hereunder,  but  Pipeline will not be  required  to  deliver
     gas   at   greater  than  the  maximum  pressures  specified
     herein.

     a.   Up   to  104  Dt  per  Day  at  an  existing  point  of
          interconnection  between  the  facilities  of  Pipeline
          and     Texas     Eastern,    in    Fayette     County,
          Pennsylvania,    known    as    the    North     Summit
          Interconnection,  at  a  pressure  of  not  more   than
          one thousand (1,000) psig.

     b.   Up   to  104  Dt  per  Day  at  an  existing  point  of
          interconnection  between  the  facilities  of  Pipeline
          and  Texas  Eastern,  in  Greene County,  Pennsylvania,
          known   as   the   Crayne   Interconnection,   on    an
          interruptible    basis    if    operating    conditions
          permit,   at   a  pressure  of  not  more  than   eight
          hundred sixty-five (865) psig.

     c.   Up  to  104  Dt per Day at the interconnection  of  the
          facilities  of  Pipeline  and Texas  Eastern  or  other
          pipeline(s)   in  Westmoreland  County,   Pennsylvania,
          known   as   the   Oakford   Interconnection,   on   an
          interruptible    basis    if    operating    conditions
          permit,   at   a  pressure  of  not  less  than   eight
          hundred fifty (850) psig.
                    
  3. Pipeline  shall  deliver on a firm basis  up  to  Customer's
     Storage  Demand,  as  adjusted  pursuant  to  Section  8  of
     Rate   Schedule  GSS-II  and  Article  V  of  this   Service
     Agreement.


             [END OF EXHIBIT 10tt TO COLONIAL GAS COMPANY
                FORM 10-K FOR YEAR ENDING 12/31/93]