COLONIAL GAS CO
S-3D, 1998-01-05
NATURAL GAS DISTRIBUTION
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             SECURITIES AND EXCHANGE COMMISSION

                          FORM S-3

                REGISTRATION STATEMENT UNDER
                 THE SECURITIES ACT OF 1933

                    COLONIAL GAS COMPANY
   (Exact name of registrant as specified in its charter)

             Massachusetts                 04-1558100
    (State or other jurisdiction of        (I.R.S. Employer
    incorporation or organization)         Identification Number)

 40 Market Street, Lowell, Massachusetts 01852, 978-322-3000
     (Address, including zip code, and telephone number,
                   including area code, of
          registrant's principal executive offices)

       Dennis W. Carroll, Vice President and Treasurer
       Colonial Gas Company, 40 Market Street, Lowell,
              Massachusetts 01852, 978-322-3000
  (Name, address, including zip code, and telephone number,
        including area code, of agent for service)

  Approximate date of commencement of proposed sale to the public:
   As soon as practicable after the Registration Statement
                     becomes effective.

If the only securities being registered on this Form are
being offered pursuant to dividend or interest reinvestment
plans, please check the following box.   X

If any of the securities being registered on this Form are
to be offered on a delayed or continuous basis pursuant to
Rule 415 under the Securities Act of 1933,  other than
securities  offered  only in connection  with   dividend  or
interest  reinvestment plans, check the following box.  

               CALCULATION OF REGISTRATION FEE

 Title of                Proposed    Proposed        
each class               maximum     maximum         
    of      Amount to   aggregate   aggregate   Amount of
securities      be      price per    offering   registration
  to be     registered     unit       price        fee
registered
                                                
Common       400,000     $29.375*    $11,750,000*  $3,466.25
Stock, par                              
value
$3.33 per
share

*Estimated   solely   for  purposes   of   calculating   the
registration  fee  pursuant to  Rule  457(c)  based  on  the
average of the high and low prices reported by the New York
Stock Exchange on December 26, 1997

PROSPECTUS

                    Colonial Gas Company
    Dividend Reinvestment and Common Stock Purchase Plan

   The  Dividend Reinvestment and Common Stock Purchase Plan
(the   "Plan")  of  Colonial  Gas  Company  (the  "Company")
provides participants in the Plan with a convenient means of
investing   dividends   and  making  cash   investments   in
additional  shares  of  the Company's Common  Stock  without
payment of any brokerage commission or service charge.

  Participants in the Plan may:

    Automatically reinvest, or invest, as the case  may  be,
    cash  dividends on all or some of their shares in shares
    of  Common  Stock at a 5% discount from  current  market
    prices.

   Make  optional  cash  investments of  up  to  $5,000  per
    calendar  quarter in shares of Common Stock  at  current
    market prices.

   Deposit  share  certificates with the  Plan's  Agent  for
    safekeeping.

   Make  automatic  monthly investments by electronic  funds
    transfer from their U.S. bank account.

   Employees  of the Company who are eligible to participate
have  the  additional option of utilizing payroll deductions
to make investments in Common Stock up to a total investment
of $5,000 per calendar quarter.

   The  price  of  shares  of  Common  Stock  purchased  for
participants  in  the  Plan  with  reinvested  or   invested
dividends  will be 95% of the average of the daily  averages
of  the  high and low prices for such stock as published  in
the Eastern Edition of The Wall Street Journal report on the
New York Stock Exchange ("NYSE") for the last  five
trading  days immediately preceding the date the  investment
is  made. The price of shares of Common Stock purchased with
optional  cash  investments, including  payroll  deductions,
will be 100% of such average. No purchases will be made at a
price below $3.33 per share, the par value of the Common Stock.

   Dividends  on  Common  Stock will be  invested  on  their
payment  date. Optional cash investments, including  payroll
deductions, will be invested monthly on the fifteenth day of
each  month  or, if that day is not a business day,  on  the
preceding business day.

   This  Prospectus relates to 400,000 authorized shares  of
Common  Stock  of  the  Company, all of  which  shares  were
unissued  as  of  January 5, 1998.  It is suggested  that  this
Prospectus be retained for future reference.

  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE
  SECURITIES AND EXCHANGE COMMISSION NOR HAS THE SECURITIES AND
  EXCHANGE COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF
  THIS PROSPECTUS.  ANY REPRESENTATION TO THE CONTRARY IS A 
  CRIMINAL OFFENSE.
                              
        The date of this Prospectus is January 5, 1998


                      TABLE OF CONTENTS

                                                       
AVAILABLE INFORMATION                                   
THE COMPANY                                           
DESCRIPTION OF THE PLAN                                
PURPOSE                                                
ADVANTAGES                                             
ADMINISTRATION                                         
ELIGIBILITY                                             
PARTICIPATION BY SHAREHOLDERS                           
OPTIONAL CASH INVESTMENTS                               
OPTIONAL CASH INVESTMENTS THROUGH EMPLOYEE PAYROLL
DEDUCTIONS                                              
PURCHASES                                               
COSTS                                                   
REPORTS TO PARTICIPANTS                                 
DIVIDENDS                                               
CERTIFICATES FOR SHARES                                 
TRANSFERS OF SHARES                                    
CHANGING METHOD OF PARTICIPATION AND WITHDRAWAL        
OTHER INFORMATION                                      
TAX CONSEQUENCES                                       
USE OF PROCEEDS                                        
LEGAL OPINIONS                                         
EXPERTS                                                
INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE        
INDEMNIFICATION OF DIRECTORS AND OFFICERS              
SHAREHOLDER RIGHTS                                     
                              
                    AVAILABLE INFORMATION
                              
   Colonial  Gas Company (the "Company") is subject  to  the
informational requirements of the Securities Exchange Act of
1934, as amended (the "Exchange Act"), and  in accordance 
therewith files reports  and  other information with the 
Securities and Exchange Commission (the "Commission").   
Information,  as   of   particular   dates, concerning  
directors  and officers of  the  Company,  their
remuneration,  any options granted to them (of  which  there
are  none  at  the  date hereof), the principal  holders  of
securities of the Company and any material interest of  such
persons  in  transactions with the Company is  disclosed  in
proxy  statements distributed to shareholders of the Company
and filed with the Commission. Reports, proxy statements and
other  information filed by the Company with the  Commission
can   be  inspected  and  copied  at  the  public  reference
facilities  maintained  by  the  Commission  at  Room  1024,
Judiciary  Plaza,  450 Fifth Street, N.W., Washington,  D.C.
20549   and  at  the  following  regional  offices  of   the
Commission: Seven World Trade Center, 13th floor, New  York,
New  York,  10048; and 500 West Madison Street, Suite  1400,
Chicago, Illinois 60661. Copies of such material can also be
obtained from the Public Reference Section of the Commission
at Judiciary Plaza, 450 Fifth Street, N.W., Washington, D.C.
20549, at prescribed rates.  Such material can also be reviewed
through the Commission's Electronic Data Gathering Analysis and
Retrieval System, which is publicly available through the
Commission's website (http://www.sec.gov).  In addition, reports
and other information concerning the Company can be inspected
and copied at the offices of the New York Stock Exchange, Inc.,
20 Broad Street, New York, New York 10005.
                              
                         THE COMPANY
                              
   The  Company, a Massachusetts corporation formed in 1849,
is  primarily a regulated natural gas distribution  utility.
The  Company  serves over 149,000 utility customers in 24  
municipalities located  northwest  of Boston and on Cape  Cod.  
Through its subsidiary, Transgas Inc., the Company also 
provides over-the-road transportation of liquefied natural gas,
propane and other commodities.  The  Common Stock of the Company 
is traded on the NYSE under the trading symbol "CLG".

   The  executive offices of the Company are located  at  40
Market Street, Lowell, Massachusetts 01852; telephone number
(978) 322-3000.
                              
                   DESCRIPTION OF THE PLAN
                              
   The  following is a question and answer statement of  the
provisions of the Company's Dividend Reinvestment and Common
Stock Purchase Plan (the "Plan").
                              
                           PURPOSE
                              
1.   What is the purpose of the Plan?

   The purpose of the Plan is to provide participants with a
convenient means of reinvesting cash dividends on shares  of
Common  Stock  of  the  Company, and  making  optional  cash
investments in shares of the Company's Common Stock, in each
case  without payment of any brokerage commission or service
charge.  Shares  of Common Stock purchased  by  participants
under  the Plan will be acquired directly from the  Company.
The  Company plans to use the proceeds from the sale of  its
Common  Stock  pursuant to the Plan for capital expenditures
for  extensions, additions and improvements to the Company's
utility  property or for the payment of obligations  of  the
Company incurred in connection with such expenditures.
                              
                         ADVANTAGES
                              
2.   What are the advantages of the Plan?

   The  Plan  provides participants with the opportunity  to
reinvest,  or invest, as the case may be, dividends  in  the
Company's Common Stock at a 5% discount from current  market
prices, and offers several other advantages. Participants in
the  Plan may (a) automatically reinvest, or invest, as  the
case  may be, cash dividends on some or all of their  shares
of  Common  Stock  or  (b) continue to  receive  their  cash
dividends  on  shares  registered in their  names  and  make
optional cash investments up to $5,000 per calendar  quarter
or  (c)  both  invest  their cash dividends  and  make  such
optional cash investments. Investments made by a participant
under  the  Plan are credited to a Plan account  established
for each participant. Participants do not pay any commission
or  service  charge in connection with purchases  under  the
Plan.  All costs of administration of the Plan will be  paid
by  the Company. Full investment of funds is possible  under
the  Plan  because the Plan permits fractions of shares,  as
well  as  full  shares,  to  be  credited  to  participants'
accounts.  In  addition,  dividends  in  respect   of   such
fractions,  as  well  as full shares, will  be  credited  to
participants' accounts. Participants may avoid the necessity
for safekeeping of certificates for shares credited to their
accounts  under  the  Plan. Regular  statements  of  account
provide  such  participant with  a  record  of  all  account
transactions.
                              
                       ADMINISTRATION
                              
3.   Who administers the Plan for participants?

    Bank  of  Boston, N.A.  (the   "Agent") administers  the  
Plan for participants, maintains  records, sends  regular  
statements of account  to  participants  and performs  other  
duties relating to the  Plan.  The  Company reserves  the right 
to designate a different Agent  for  the Plan  at  any time. 
In the event of any change in the  Agent for the Plan, 
participants will be duly notified.

    All  Authorization  Forms,  optional  cash  investments,
automatic monthly investment forms, direct deposit forms and
notices of withdrawal with the Agent should be sent to:

      BankBoston, N.A.
      c/o Boston EquiServe
      Dividend Reinvestment
      Mail Stop 45-01-06
      P.O. Box 1681
      Boston, MA 02105-1681

  All other communications with the Agent should be sent to:

      BankBoston, N.A.
      c/o Boston EquiServe
      Shareholder Services Division
      Mail Stop 45-02-09
      P.O. Box 644
      Boston, MA 02102-0644

  Participants may telephone the Agent between 8:00 a.m. and
7:00 p.m. Eastern Time at:

      (800) 736-3001 from areas out of Massachusetts
      (781) 575-3100 in Massachusetts

   Please  mention  Colonial Gas Company  and  your  account
number if available in all correspondence.
                              
                         ELIGIBILITY
                              
4.   Who is eligible to participate in the Plan?

   All  holders  of  record of shares of  Common  Stock  are
eligible  to participate in the Plan. Beneficial  owners  of
the  Company's  stock whose shares are registered  in  names
other than their own (for example, a broker or bank nominee)
must either make appropriate arrangements for the nominee to
participate  in  the  Plan or have their shares  transferred
into  their  names in order to be eligible  to  participate.
Brokers  or  bank nominees owning Company Common  Stock  may
participate  in  the Plan through Depository  Trust  Company
Dividend Reinvestment Service.
                              
                PARTICIPATION BY SHAREHOLDERS
                              
5.   How does a shareholder join the Plan?

   An eligible shareholder may join the Plan at any time  by
completing  an Authorization Form and returning  it  to  the
Agent. An Authorization Form may be obtained at any time  by
request  to  the  the Agent at the address set  forth  under
Question  3,  or  from  the Company, addressed  to  Investor
Relations, Colonial Gas Company, 40 Market Street, P.O.  Box
3064,  Lowell, Massachusetts 01853-3064. Those  shareholders
who do not wish to participate in the Plan will continue  to
receive cash dividends, as declared.

6.   When will dividends be invested?

   Cash dividends on the Company's Common Stock are normally
payable  on the fifteenth day of March, June, September  and
December.   The  "Investment Date"  for  reinvestment  of  a
dividend  will be the payment date of the dividend,  or,  if
that day is not a business day, the preceding business day.

7.   When must the Authorization Form be submitted?

  If an Authorization Form signed by an eligible shareholder
entitled to a dividend is received by the Agent on or before
the  last  day of the month prior to the month during  which
the  payment  date  for a particular dividend  occurs,  that
dividend  will  be  used to purchase  additional  shares  of
Common  Stock  for  the shareholder on the  next  applicable
dividend  Investment  Date.  If the  Authorization  Form  is
received by the Agent after the last day of the month  prior
to  the month during which the payment date for a particular
dividend  occurs, then the reinvestment, or  investment,  as
the  case may be, of dividends will not begin until the next
following applicable dividend Investment Date. For  example,
in  order  to  invest  the quarterly Common  Stock  dividend
payable March 15, a shareholder's Authorization Form must be
received  by  the  Agent  no later  than  the  last  day  of
February.  If the Authorization Form is received  after  the
last  day of February the dividend payable on March 15  will
be  paid in cash, and the shareholder's participation in the
Plan  will  begin with the next dividend payment date  (June
15).  See  Questions  11  and 13 for information  concerning
optional cash investments and payroll deductions.

8.   What does the shareholder Authorization Form provide?

   The  shareholder Authorization Form allows each  eligible
shareholder to determine the extent to which he or she wants
to  participate in the Plan. By checking the appropriate box
on  the  Authorization  Form,  a  shareholder  may  indicate
whether  he or she wants to (1) reinvest dividends  paid  on
all  or some of the shares of Common Stock registered in his
or  her  name  or  (2)  participate in the  Plan  by  making
optional cash investments. A participant may change  his  or
her  investment  options at any time  by  submitting  a  new
Authorization Form.
                              
                  OPTIONAL CASH INVESTMENTS
                              
9.   Who is eligible to make optional cash investments?

   All participants, whether or not they have authorized the
investment  or  reinvestment of dividends, are  eligible  to
make  optional cash investments if they have designated this
option on a signed Authorization Form. The Agent will  apply
any optional cash investments received from a participant to
the  purchase of shares of Common Stock for the  account  of
the participant on the next monthly cash Investment Date.

  If a participant chooses to participate by making optional
cash investments only, the Agent will pay cash dividends  on
any shares registered in the participant's name in the usual
manner  and will apply any optional cash investment received
from the participant to the purchase of additional shares of
Common Stock for the participant's account on the next  cash
Investment Date. Dividends payable on shares of Common Stock
purchased by optional cash investments will be automatically
reinvested in additional shares of Common Stock.

   An  initial  cash investment may be made by a participant
when  enrolling  in the Plan by enclosing a check  or  money
order  with the Authorization Form. Checks and money  orders
should  be  made  payable to the Agent. Do  not  send  cash.
Thereafter, optional cash investments may be made by the use
of  the  cash payment form attached to the regular statement
of  account  sent  to participants by the Agent  or  may  be
deducted  automatically on a monthly basis from a U.S.  bank
account. See Question 12.

10.  What are the limitations on making optional cash
investments?

   The  option to make cash investments is available to each
participant  at  any time. Optional cash  investments  by  a
participant must be at least $10, and cannot exceed a  total
of $5,000 per calendar quarter. The same investment need not
be  made  each month and there is no obligation to  make  an
optional cash investment each month.

11.  When will optional cash investments received by the
agent be invested?

   The  "Investment Date" for optional cash investments will
be the fifteenth day of each month or, if that day is not  a
business  day,  the  preceding business day.  Optional  cash
investments  received by the Agent on or  before  the  fifth
business  day  prior  to  a cash Investment  Date  shall  be
invested  on  such  cash  Investment  Date.  Optional   cash
investments received after the fifth business day prior to a
cash  Investment  Date will be held by the Agent  until  the
next  following cash Investment Date. Since no interest will
be  paid  by  the  Company  or the Agent  on  optional  cash
investments,  you are strongly urged to make  your  optional
cash  investments  shortly before a  cash  Investment  Date.
However,  you  should allow sufficient time to  insure  that
your optional cash investment will be received prior to  the
fifth business day before the cash Investment Date. Optional
cash  investments will be refunded if a written request  for
refund  is received by the agent at least two business  days
prior  to  the Investment Date on which the cash  investment
otherwise would have been invested.

12.  What is the automatic monthly feature of the Plan and
how does it work?

   Participants may make optional cash investments by  means
of  an  automatic  monthly investment of a specified  amount
(not  less  than $10 per investment or more than $5,000  per
calendar  quarter)  by  electronic  funds  transfer  from  a
predesignated U.S. bank account.

  To initiate automatic monthly investments, the participant
must  already  have  established a  Plan  account  and  must
complete  and sign an Automatic Monthly Investment Form  and
return  it  to the Agent together with a voided blank  check
for  the account from which funds are to be drawn. Automatic
Monthly Investment Forms may be obtained from both the Agent
and  the  Company. Forms will be processed and  will  become
effective as promptly as possible.

   Once  automatic monthly investments begin, funds  in  the
amount  elected  by the participant will be drawn  from  the
participant's designated U.S. bank account one business  day
preceding  the Investment Date of each month,  and  will  be
invested in Common Stock beginning on that Investment  Date.
A  participant will not be required to write any  additional
checks or mail any additional forms.

   Participants  may  change  or terminate  their  automatic
monthly investment by completing and submitting to the Agent
a  new  Automatic Monthly Investment Form. To  be  effective
with  respect  to  a  particular Investment  Date,  the  new
Automatic  Monthly Investment Form must be received  by  the
Agent no later than the first day of the month.
                              
     OPTIONAL CASH INVESTMENTS THROUGH EMPLOYEE PAYROLL
                         DEDUCTIONS
                              
13.  How do employees of the Company elect to participate
through payroll deductions?

   Eligible Company employees (i.e., shareholders of record)
can  participate through payroll deductions by completing  a
Payroll  Deduction Authorization Form (obtainable  from  the
Company's Personnel Department) which authorizes the Company
to deduct any amount specified by the employee, at least $10
and  up  to  $5,000 per calendar quarter, from  his  or  her
regular  paychecks.  The Agent will invest  the  accumulated
payroll  deductions in Common Stock on each cash  Investment
Date. If the employee has made optional cash investments  in
any  calendar  quarter  which, in addition  to  his  or  her
payroll deductions during such quarter, total less than  $10
or  exceed $5,000, the Agent will return to the employee any
amount  received less than $10 or any excess  received  over
$5,000.

   In  order  to  commence payroll deductions,  the  Payroll
Deduction Authorization Form must be received by the Company
two weeks before the payday on which the employee wishes  to
commence deductions. An employee for whom payroll deductions
have already been commenced may change the amount of his  or
her   deductions  by  submitting  a  new  Payroll  Deduction
Authorization Form, or other appropriate form which  may  be
obtained  from the Company, two weeks before the  payday  on
which  the  employee wishes to have the amount changed.  All
deductions made not later than the last day of the last full
payroll  period  ending  in  the  month  prior  to  a   cash
Investment  Date will be invested as of such cash Investment
Date.  All  deductions made after the last day of  the  last
full  payroll  period ending in the month prior  to  a  cash
Investment Date will be held by the Company and invested  on
the  next succeeding cash Investment Date. No interest  will
be paid by the Company or the Agent on payroll deductions.
                              
                          PURCHASES
                              
14.  How many shares of Common Stock will be purchased for
participants?

   The  number  of shares to be purchased for a  participant
under  the  Plan depends on the amount of cash dividends  to
which  the participant is entitled, including cash dividends
on  shares  credited to the participant's account under  the
Plan,  the amount of any optional cash investments made,  or
payroll  deductions authorized by the participant,  and  the
purchase  price of shares of the Company's Common  Stock  on
the  applicable Investment Date. Each participant's  account
will  be  credited  with that number  of  shares,  including
fractions  computed to three decimal places,  equal  to  the
total  amount  to  be  invested divided  by  the  applicable
purchase price.

15.  What will be the price of shares of Common Stock
purchased under the Plan?

   The  price  of  shares  of  Common  Stock  purchased  for
participants  in  the  Plan with dividends  paid  on  Common
Stock,  including dividends on the shares  of  Common  Stock
credited to the participants' accounts under the Plan,  will
be  95% of the average of the daily averages of the high and
low  prices  for  such  stock as published  in  the  Eastern
Edition of The Wall Street Journal report on the NYSE for the
last  five trading days immediately preceding the applicable
Investment  Date.  The  price  of  shares  of  Common  Stock
purchased with optional cash investments, including  payroll
deductions, will be 100% of such average. If a participant's
Authorization Form on file with the Agent does not  indicate
that  dividends  on  shares registered in the  participant's
name   should  be  reinvested,  such  dividends   paid   and
thereafter  returned with instructions  to  purchase  shares
under  the  Plan  will  be  treated  as  an  optional   cash
investment. No purchases of Common Stock will be made  at  a
price  below $3.33 per share, the par value of the Common
Stock. In other words, if the average of  the  daily averages 
of the high and low prices  for  the last  five trading days 
immediately preceding the applicable Investment  Date is below 
$3.49, no dividends on  shares  of Common  Stock will be 
reinvested, or invested, as  the  case may be, because 95% of 
such average is below $3.33. Optional cash  investments will 
be applied to the purchase of  shares of  Common Stock so long 
as such average is not below $3.33. If  the applicable pricing 
formula for a purchase results in a   price  below  $3.33,  
the  dividends  or  optional  cash investments  received by the 
Agent for  investment  will  be paid  or returned directly to 
the participant by check  with an explanatory note.
                              
                            COSTS
                              
16.  What are the costs to participants in the Plan?

   For  Plan  participants there are no brokers' commissions
and  no service charges connected with stock purchases.  The
Company   pays  these  costs,  along  with  any  costs   for
administration  of  the Plan. There is  a  fee  for  selling
shares   upon  termination  of  participation  by   a   Plan
participant. See Question 27.
                              
                   REPORTS TO PARTICIPANTS
                              
17.  What reports will be sent to participants in the Plan?

   A  participant  will receive (1) as soon  as  practicable
after each purchase, but at least quarterly, a statement  of
his or her account showing amounts invested, purchase price,
shares  purchased  and other information for  the  preceding
quarter, or lesser period, and the year to date, and (2)  at
least  annually,  on or before January 31 of  each  year,  a
statement showing the number of shares purchased, the  dates
of  the purchases and the fair market value of the shares on
the date of purchase. The fair market value of the Company's
Common  Stock credited to the Participant's account  on  the
Investment  Date  will be the average of the  high  and  low
prices for such stock as published in the Eastern Edition of
The Wall Street Journal report on the NYSE for the date the 
investment is made.  The year-end  statement  should  be
retained  for  income   tax purposes. In addition, each
participant will receive  copies of  each subsequent Prospectus 
for the Plan, as well as  the same   communications  sent  to 
every  other   shareholder, including  the  Company's quarterly 
reports, annual  report, notice  of  stockholders' meeting and 
proxy statements,  and Federal income tax information.
                              
                          DIVIDENDS
                              
18.  Will participants be credited with dividends on shares
held in their accounts under the Plan?

   Yes.  The  Company pays dividends, as  declared,  to  the
record  holders of all its shares of stock.  As  the  record
holder  for  participants, the Agent will receive  dividends
for  all  shares credited to participants' accounts  on  the
record  date.  The  Agent  will  credit  such  dividends  to
participants on the basis of full and fractional shares held
in  their  accounts,  and will reinvest  such  dividends  in
additional shares.

19.  May participants have dividends on shares held in their
Plan accounts sent directly to them?

   Yes.  Through  the  Plan's partial dividend  reinvestment
feature, participants may elect to receive cash dividends on
some  shares  and  to  reinvest the cash  dividends  on  the
remainder of shares.

20.   May  participants have their cash dividends  deposited
directly in their bank account?

    Yes.  Through  the  Company's  direct  deposit  feature,
participants may elect to have any cash dividends not  being
reinvested under the Plan paid by electronic funds  transfer
to  the  participant's predesignated U.S. bank  account.  To
receive such dividends by direct deposit, participants  must
first  complete and sign the Direct Deposit Form and  return
it  to  the  Agent. Direct Deposit Forms are available  upon
request  from  the  Agent  at the address  set  forth  under
Question 3.

   Direct  Deposit Forms will be processed and  will  become
effective  as  promptly  as  practicable.  Participants  may
change   the  designated  account  for  direct  deposit   or
discontinue  this  feature  by written  instruction  to  the
Agent.
                              
                   CERTIFICATES FOR SHARES
                              
21.  Will stock certificates be issued for shares of Common
Stock purchased under the Plan?

    Certificates  will  not  be  automatically   issued   to
participants for shares of Common Stock purchased under  the
Plan.  The  number  of shares credited  to  a  participant's
account  under  the Plan will be shown on the  participant's
statement  of  account.  This  additional  service  protects
against loss, theft, or destruction of stock certificates.
   Certificates for any number of shares up to the number of
full  shares credited to a participant's account  under  the
Plan will be issued upon written request of the participant.
Such  a request should be mailed to the Agent at the address
set  forth  under Question 3. Any remaining full shares  and
fractional  shares  will continue  to  be  credited  to  the
participant's  account. Certificates for  fractional  shares
will not be issued under any circumstances.

22.  May participants deliver other shares of Common Stock
to the Plan for safekeeping?

  Yes. Existing shares of Common Stock held by a participant
may  be  delivered to and consolidated with shares purchased
by  the Plan and held in the participant's account. In  this
way  the  Agent  can maintain in safekeeping all  shares  of
Common  Stock  held by a participant and  will  provide  the
participant   a  statement  of  account.  In   addition,   a
participant  may consolidate small holdings  and  fractional
shares. Participants may obtain additional information about
having the Agent hold shares by request mailed to the  Agent
at the address set forth under Question 3.

23.  In whose name will accounts be maintained and
certificates registered when issued?

  An account for each participant will be maintained by the
Agent  in  the participant's name as shown on the Company's
records  at the time the participant enrolls in  the  Plan.
When   issued,  certificates  for  full  shares   will   be
registered   in  the  name  under  which  the  account   is
maintained. Upon written request, certificates also can  be
registered and issued in names other than the account name.
See Question 24.

   Shares credited to the account of a participant  in  the
Plan may not be acceptable as collateral for loans. In such
case, a participant who wishes to pledge such shares should
request  that  certificates for such shares be  issued  and
delivered to him or her.
                              
                     TRANSFERS OF SHARES
                              
24.   How  does a participant make a gift or transfer  shares
within the Plan?

   If a participant wishes to transfer the ownership of all
or  part of the participant's shares held under the Plan to
a  Plan  account  for  another person who  is  eligible  to
participate  in  the  Plan  or  a  family  member  of   the
participant  initiating the transfer, whether  by  gift  or
otherwise,  the  participant may effect  such  transfer  by
mailing   a  properly  executed  stock  assignment  ("Stock
Power"), to the Agent. Requests for transfer are subject to
the  same requirements as for the transfer of Common  Stock
certificates,  including  the requirement  of  a  signature
guarantee  on the stock assignment. Stock Power  Forms  are
available  upon request from the Agent at the  address  set
forth under Question 3.

   Shares gifted or transferred will continue to be held by
the  Agent under the Plan. An account will be opened in the
name  of  the  donee or transferee, if he  or  she  is  not
already  a  participant, and such donee or transferee  will
automatically  be enrolled in the Plan.  If  the  donee  or
transferee  is  not already a registered shareholder  or  a
Plan  participant, the participant may make a  reinvestment
election  for the donee or transferee at the time the  gift
or  transfer.  The  donee  or  transferee  may  change  the
reinvestment level after the gift or transfer has been made
as  described  under Question 25. The donee  or  transferee
will  receive  a  statement showing the  number  of  shares
gifted or transferred.
                              
       CHANGING METHOD OF PARTICIPATION AND WITHDRAWAL
                              
25.   How  does  a participant change his or  her  method  of
participation?

    A   participant  may  change  his  or  her  method   of
participation  at any time by completing and submitting  an
Authorization Form or other written request to the Agent at
the address set forth under Question 3.

26.  When may a participant withdraw from the Plan?

   A participant may withdraw from the Plan at any time. If
a  notice  of withdrawal is received by the Agent at  least
ten  days  prior to the record date for the next  dividend,
such dividend and all subsequent dividends will be paid  in
cash  to  the  withdrawing participant. If such  notice  of
withdrawal is received by the Agent subsequent to the  date
specified,  such dividend will be reinvested, or  invested,
as  the  case  may be, under the Plan for the participant's
account. All subsequent dividends will be paid in  cash  to
the  withdrawing  participant. Investment of  any  optional
cash  investments  will be cancelled upon  receipt  by  the
Agent  of  such notice of withdrawal at least two  business
days  prior  to  the applicable Investment  Date,  and  any
optional cash investments received prior to such withdrawal
date will be returned to the withdrawing participant.

   Any  shareholder who has withdrawn may re-enroll at  any
time  upon submission of an Authorization Form, as provided
under  Question 5. Until such time, dividends will be  paid
to such shareholder in cash.

27.  How does a participant withdraw from the Plan?

   In  order to withdraw from the Plan, a participant  must
write  to the agent at the address set forth under Question
3, giving notice that he or she wishes to withdraw from the
Colonial  Gas  Company's Dividend Reinvestment  and  Common
Stock Purchase Plan. The participant's account number  must
also  be  stated. To facilitate withdrawal the  participant
may  complete  and  forward the reverse side  of  the  cash
payment form of the most recent account statement.

   When  a  participant withdraws from the  Plan,  or  upon
termination  of  the Plan by the Company,  the  Agent  will
cause  a  certificate or certificates for the  full  shares
credited  to  the participant's account to  be  issued  and
delivered  to the participant. In every case of  withdrawal
the participant's interest in any fractional share will  be
converted to cash at a price equal to the closing price for
the  Common  Stock  on  the next  business  day  after  the
withdrawal  request is received by the Agent, as  published
in the Eastern Edition of The Wall Street Journal report on
the NYSE. Upon withdrawal from the Plan, the participant  may
also  request  in writing that some or all of  the  shares,
both  whole and fractional, held in his or her Plan account
be  sold.  If the participant so requests, the  Agent  will
sell  such  shares  and  deliver  to  the  participant  the
proceeds,  less  a handling charge of 5%  of  the  proceeds
received from such sale, or $5.00 (whichever is less),  and
broker's commissions.

  The participant's shares will be sold within ten business
days  at  the prevailing market price only upon receipt  by
the  Agent  of clear written instructions to sell  and  the
proper  documents to effect the sale. The documents  should
be  signed  by the registered owner exactly as his  or  her
name  appears  on the Agent's records. If  the  shares  are
registered in the name of a corporation, partnership, trust
or  other  fiduciary, or if a record owner  has  died,  the
Agent  requires certified and current evidence of authority
before accepting a request to sell shares of a participant.
28.   How  does  a  Company  employee  participating  through
payroll deductions withdraw from the Plan?

   In  addition to the withdrawal notice sent to the Agent,
an  employee  who has elected to participate  by  means  of
payroll  deductions must notify the Company in  writing  to
discontinue the payroll deductions sufficiently in  advance
of   the  employee's  next  paycheck  to  allow  processing
(normally  at  least  two  weeks).  After  such  notice  is
received by the Company, no further payroll deductions will
be  made and the accumulated amount withheld, if any,  will
be paid to the employee in cash.

29.      May  a  Company  employee  terminate  his  or   her
  participation through payroll deductions and still  remain
  in the Plan?

  Yes. A Company employee who terminates his or her payroll
deductions  may  retain his or her Plan account.  Dividends
paid  on shares left in the participant's Plan account will
continue  to  be automatically reinvested. The  participant
may also continue to make optional cash investments.
                              
                      OTHER INFORMATION
                              
30.     What  happens when a participant sells or  transfers
  all  of  the shares registered in his or her name  on  the
  books of the Company?

   If  a participant disposes of all certificated shares  of
stock  registered  in his or her name on the  books  of  the
Company, the Agent will, unless otherwise instructed by  the
participant,  continue  to reinvest  the  dividends  on  the
shares  credited  to  his  or her account  under  the  Plan,
subject to the participant's right to withdraw from the Plan
at any time. However, if a participant has only a fractional
share of stock credited to his or her account under the Plan
on  the  record  date for any cash dividend  on  the  Common
Stock,  the  Company reserves the right not to reinvest  any
additional  dividends  on  such  fractional  share.  If  the
Company exercises this right, the participant will receive a
cash  adjustment representing such fraction of a share  plus
the  amount of the cash dividend on such fraction. The  cash
payment  for  the  fractional share will  be  based  on  the
closing   price  of  the  Common  Stock  on  the  applicable
Investment Date for the cash dividend, as published  in  the
Eastern Edition of The Wall Street Journal report on the NYSE.

31.     If  the  Company sells additional shares  of  Common
  Stock  through a rights offering, how will the  rights  on
  Plan shares be handled?

  In a rights offering, the participant will receive rights
based  upon  his  or her shares held of  record  and  whole
shares credited to his or her account under the Plan.

32.   What happens if the Company declares a dividend payable
in shares or a stock split?

   Any  dividend  payable in shares  or  any  split  shares
distributed  by  the  Company on  shares  credited  to  the
account  of a participant under the Plan will be  added  to
the participant's account.

33.  How are participant's shares held under the Plan voted?

   All  shares owned by the participant, whether  they  are
held  by  the shareholder or by the Agent, will be combined
for  voting  purposes. Each participant in  the  Plan  will
receive  a  proxy indicating the total number of shares  of
Common  Stock  held  by the participant,  including  shares
registered in his or her name and shares credited to his or
her account under the Plan.

   Proxy  cards for the purpose of voting will be forwarded
to  the participant. Alternatively, a participant may  vote
the  shares  registered  in his  or  her  name  and  shares
credited  to  his  or her Plan account  in  person  at  the
meeting.

   If  no  instructions are received on a  properly  signed
proxy  with  respect  to  any  item  thereon,  all   of   a
participant's   shares     (those   registered   in    the
participant's  name and those credited to the participant's
Plan  account)  will  be  voted in  accordance  with  the
recommendations of the Company's management,  just  as  for
non-participating shareholders who return  proxies  and  do
not  provide instructions. If the proxy is not returned  or
if  it  is  returned  unsigned, none of  the  participant's
shares  will  be  voted  unless the  participant  votes  in
person.

34.  May the Plan be changed or discontinued?

    While   the   Company  hopes  to  continue   the   Plan
indefinitely,  the  Company reserves the  right  to  amend,
suspend,  modify  or  terminate  the  Plan  at  any   time,
notwithstanding any other provisions of the Plan. Notice of
any such amendment, suspension, modification or termination
will  be  sent to participants. In the event  the  Plan  is
suspended,  it  may  be resumed upon  notice  sent  to  all
participants.

35.   What are the responsibilities of the Company and  the
Agent under the Plan?

  The Company and the Agent administering the Plan will not
be  liable  for  any  act done in good  faith  or  for  any
omission   to   act  in  good  faith,  including,   without
limitation,  any  claim of liability  arising  out  of  the
failure  to  terminate a participant's  account  upon  such
participant's death prior to receipt of notice  in  writing
of  such  death,  or with respect to the  prices  at  which
shares  are  purchased or sold for a participant's  account
and the times when such purchases or sales are made or with
respect  to  any  fluctuation in market values  after  such
purchases or sales of shares.

  The participant should recognize that neither the Company
nor  the Agent can assure him or her of a profit or protect
him or her against a loss on the shares purchased by him or
her under the Plan.

36.  Who interprets and regulates the Plan?

   The Company reserves the right to interpret and regulate
the  Plan  as  may be necessary or desirable in  connection
with the operation of the Plan.
                              
                      TAX CONSEQUENCES
                              
37.    Is there an exclusion of certain qualified restricted
  dividends  from  gross  income  for  federal  income   tax
  purposes?

    For federal income tax purposes, a participant   is  
deemed  to  receive  on   each   dividend Investment  Date 
a dividend equal to the fair market  value of the Company's 
Common Stock credited to the participant's account  on  the  
Investment Date,  even  though  the  cash dividend amount 
is not actually received by the participant but,  instead,  
is  used to purchase  new  shares  for  the participant's 
account.

    Additional   tax  information  may   be   provided   to
participants with the year-end Form 1099 information.   For
tax  consequences of participation in the  Plan,  including
federal,  state and local income taxation, the  participant
should consult his or her tax advisor.
                              
                       USE OF PROCEEDS
                              
   Although  the Company does not know whether all  of  the
400,000  shares of Common Stock covered by this  Prospectus
will  be  sold, or the exact prices at which they  will  be
sold, the minimum aggregate proceeds if all such shares were
to be sold at the minimum price of $3.33 per share would be 
$1,332,000 before deducting expenses  of  the offering. The 
net proceeds of such sales will be  used  for capital   
expenditures   for  extensions,   additions   and improvements 
to the Company's utility property or  for  the payment   of
obligations  of  the  Company  incurred   in connection with 
such expenditures.
                              
                       LEGAL OPINIONS
                              
   The validity of the Common Stock offered hereby is being
passed  on  for the Company by Palmer & Dodge LLP,  One  Beacon
Street, Boston, Massachusetts, counsel for the Company.
                              
                           EXPERTS
                              
   The  consolidated financial statements and schedule  of
Colonial  Gas  Company and subsidiaries for each  of  three
years  in  the period ended December 31, 1996, incorporated
by  reference in this Registration Statement/Prospectus and
included  in  or incorporated by reference in Colonial  Gas
Company's  Annual Report on Form 10-K for  the  year  ended
December 31, 1996, have been audited by Grant Thornton LLP,
independent  certified public accountants, as indicated  in
their   reports  with  respect  thereto.  The  consolidated
financial   statements   and  schedule   incorporated   by
reference  in  this  Registration Statement/Prospectus  and
included  in  or incorporated by reference in Colonial  Gas
Company's Annual Report on Form 10-K have been incorporated
by  reference  herein in reliance on the  reports  of  such
accountants  given  upon  their  authority  as  experts  in
accounting and auditing.
                              
       INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
                              
   The following documents and information heretofore filed
by  the Company with the Commission are hereby incorporated 
by reference in this Prospectus and shall be deemed a part 
hereof with such change as may  have been  effected  by  any  
subsequent documents  referred  to below:

      1.  The  Annual Report on Form 10-K for the year  ended
   December 31, 1996, of the Company filed pursuant to  the
   Exchange Act.

      2.  The Quarterly Report on Form 10-Q filed pursuant to
   the Exchange Act for the quarter ended September 30, 1997 of the
   Company.

      3.  The Quarterly Report on Form 10-Q filed pursuant to 
   the Exchange Act for the quarter ended June 30, 1997 of the
   Company.

      4.  The Quarterly Report on Form 10-Q filed pursuant to 
   the Exchange Act for the quarter ended March 31, 1997 of the
   Company.

      5.  The Current Report on Form 8-K filed by the Company with
   the Commission on July 22, 1997, pursuant to the Exchange Act.

      6.  The  description  of  the  Company's  Common  Stock
   contained in the Company's Registration Statement on Form 
   8-A filed on September 11, 1997, under the Exchange Act, 
   including the amendments or reports filed for the purpose
   of updating such description.

      7.  The   description  of  the  Junior   Participating
   Preferred  Stock  Purchase Rights (one  of  such  rights
   being  included  with  each  outstanding  share  of  the
   Company's  Common  Stock), contained  in  the  Company's
   Registration Statement on Form 8-A filed on September 11,
   1997  under  the Exchange Act including the amendments or 
   reports filed for the purpose of updating such description.

   All  documents filed by the Company pursuant to  Section
13,  14,  or 15(d) of the Exchange Act after the date  of  this
Prospectus and prior to the termination of this offering of
Common  Stock  shall  be  deemed  to  be  incorporated   by
reference  in this Prospectus and to be a part hereof  from
the date of filing of such documents.

   The  Company hereby undertakes to provide without charge
to  each person to whom a copy of this Prospectus has  been
delivered,  on  the written request of any such  person,  a
copy of any or all of the documents referred to above which
have  been  or  may  be incorporated by reference  in  this
Prospectus, other than exhibits to such documents.  Written
request  for  such  copies should be directed  to  Investor
Relations, Colonial Gas Company, 40 Market Street, P.O. Box
3064,  Lowell,  Massachusetts 01853-3064; telephone  number
(978) 322-3000.
                              
          INDEMNIFICATION OF DIRECTORS AND OFFICERS
                              
   The Company's Restated Articles of Organization and  By-
Laws   contain  provisions  which  eliminate  the  personal
liability of directors for monetary damages to the  Company
and its shareholders for breaches of fiduciary duty, except
to  the extent applicable law otherwise requires, and which
require the Company to indemnify its Directors and officers
against certain liabilities arising out of their actions as
Directors  and  officers taken in good  faith  and  in  the
reasonable  belief  that  such actions  were  in  the  best
interests of the Company.

   Insofar as indemnification for liabilities arising under
the Securities Act of 1933, as amended (the "Securities Act"),
may be permitted  to  directors and  officers  of  the Company
pursuant  to  the  foregoing provisions,  the  Company has 
been  informed  that  in  the opinion  of  the Commission  
such indemnification is against public policy as expressed in
the  Act and is therefore unenforceable. If a claim  should
arise  for  indemnification with regard to liability  under
the  federal  securities  laws the permissibility  of  such
claim  may  have  to  be resolved by a court  of  competent
jurisdiction.
                              
                     SHAREHOLDER RIGHTS
                              
   Each  share  of  the Company's Common  Stock,  including
shares  purchased under the Plan, also represents one  share
purchase  right  (a  "Right"). The Rights,  which  are  not
currently  exercisable,  under  certain  circumstances  may
trade  separately  from the Common Stock and  permit  their
holders (other than a potential acquiror) to purchase at  a
favorable   price  Common  Stock,  or  other  property   or
securities  of  the Company or securities of  the  acquiror
with the result that the acquiror's interest in the Company
would  be  substantially diluted.  The Rights could have
the effect of discouraging third party tender offers or other
attempts to obtain control of the Company without the party
first negotiating with the Company's Board of Directors,
which can then take into account the interests of the 
Company and its stockholders in evaluating the party's 
proposal.

   The description and terms of the Rights are set forth in
a  Rights  Agreement  between the  Company  and BankBoston,
N.A. (f/k/a The  First National  Bank of Boston), as Rights 
Agent, a copy of  which is   filed  with  the  Commission  
as an exhibit to  a Registration Statement on Form 8-A, 
filed on November 22, 1993, which is incorporated by reference 
into this Prospectus.
                     __________________

   No  dealer,  salesman  or  any  other  person  has  been
authorized  to  give  any  information  or  to   make   any
representations   other  than  those  contained   in   this
Prospectus   or  in  the  documents  or  other  information
incorporated  herein by reference. If given or  made,  such
other  information or representations must  not  be  relied
upon as having been authorized by the Company. Neither  the
delivery  of  this Prospectus nor any sale  made  hereunder
shall, under any circumstances, create any implication that
there  has  been  no change in the affairs of  the  Company
since  the date hereof. This Prospectus does not constitute
an  offer  by the Company to sell or a solicitation  of  an
offer to buy any securities in any State or jurisdiction to
any  person to whom it is unlawful for the Company to  make
such  offer  or solicitation in such State or jurisdiction.
This Prospectus relates only to the additional Common Stock
offered  hereby and is not to be relied upon in  connection
with  the purchase or sale of any other securities  of  the
Company.

PART II

           INFORMATION NOT REQUIRED IN PROSPECTUS


Item 14.  Other Expenses of Issuance and Distribution.

     Total expenses are estimated at $11,000 and include the
     registration fee ($3,466); printing costs
     (approximately $2,500); legal, accounting and other
     fees (approximately $4,939).

Item 15.  Indemnification of Directors and Officers.

     Section 67 of Chapter 156B of the Massachusetts General
Laws (made applicable to the registrant by Section 4 of Chapter
164) authorizes the registrant to indemnify directors and 
officers to the extent provided by its articles of organization
or a by-law or vote adopted by the stockholders.  Pursuant
to that authority, the registrant's By-laws provide that, subject 
to the limitations of Section 67, the Company will indemnify 
each person who may serve or who has served at any time as a
director or officer of the Company or of any of its subsidiaries,
or who at the request of the Company may serve or at any time
has served as a director, officer or trustee of, or in a similar
capacity with, another organization or an employee benefit plan,
against all expenses and liabilities (including counsel fees,
judgments, fines, excise taxes, penalties and amounts payable
in settlements) reasonably incurred by or imposed upon such
person in connection with any threatened, pending or completed
action, suit or other proceeding, whether civil, criminal,
administrative or investigative, in which he may become
involved by reason of his serving or having served in such
capacity (other than a proceeding voluntarily initiated by such
person unless he is successful on the merits, the proceeding was
authorized by the Company or the proceeding seeks a declaratory
judgment regarding his own conduct); provided that as to any matter
disposed of by a compromise payment by such person, pursuant to a
consent decree or otherwise, the payment and indemnification thereof
have been approved by the Company, which approval shall not
unreasonably be withheld, or by a court of competent jurisdiction.
Such indemnification includes payment by the Company of expenses
incurred in defending a civil or criminal action or proceeding in
advance of the final disposition of such action or proceeding, upon
receipt of an undertaking by the person indemnified to repay such
payment if he shall be adjudicated to be not entitled to
indemnification, which undertaking may be accepted without regard to
the financial ability of such person to make repayment.  The
indemnification provided by the Company's By-laws is expressly not
exclusive of any other rights to which a director or officer may be
entitled by contract or otherwise under law, and inures to the
benefit of the heirs, executors and administrators of such a person.

   The Company's Restated Articles of Organization eliminate directors'
personal liability to the Company and its stockholders for monetary
damages for breaches of fiduciary duty, except in circumstances
involving (i) breach of the director's duty of loyalty to the
Company or its stockholders, (ii) acts or omissions not in good
faith or which involve intentional misconduct or a knowing violation
of law, (iii) violations of the corporate statutory limitations on
distributions to stockholders or loans to insiders, and (iv)
transactions from which the director derived an improper personal
benefit. 

   The Company maintains an insurance policy for itself and its
directors and officers covering certain liabilities which may arise
as a result of actions or omissions of such directors and officers.
   
 
Item 16.  Exhibits

     The following designated exhibits are, as indicated
     below, either filed herewith or have been heretofore
     filed with the Commission and are referred to and by 
     such reference incorporated herein.

Exhibit          Exhibit
Number           Reference

 3a  Restated Articles of Organization of   Incorporated herein
     Colonial Gas Company, dated April      by reference.
     19, 1989, as amended on July 16,
     1992 and supplemented by a
     certificate of vote of Directors
     establishing a series of a class of
     stock filed on November 30, 1993,
     filed as Exhibit 3(a) to Form 10-K
     of the Registrant for the year ended
     December 31, 1996.
                                            
 3b  By-Laws of Colonial Gas Company, as    Incorporated herein
     amended to date, filed as Exhibit      by reference.
     3(b) to Form 10-K of the Registrant
     for the year ended December 31,
     1996.
                                            
 4a  Second Amended and Restated First      Incorporated herein
     Mortgage Indenture, dated as of June   by reference.
     1, 1992, filed as Exhibit 4(b) to
     Form 10-Q of the Registrant for the
     quarter ended June 30, 1992.

 4b  First Supplemental Indenture, dated    Incorporated herein
     as of June 15, 1992, filed as          by reference.
     Exhibit 4(c) to Form 10-Q of the
     Registrant for the quarter ended
     June 30, 1992.

 4c  Form of Rights Agreement, dated as     Incorporated herein
     of December 1, 1993, between the       by reference.
     registrant and BankBoston, N.A.
     (f/k/a The First National Bank of
     Boston), as Rights Agent, together
     with the following exhibits thereto:
     (i) Form of Vote Establishing the
     Series A-1 Junior Participating 
     Preferred Stock, (ii) Form of Rights
     Certificate, and (iii) Summary of
     Rights to Purchase Preferred Shares.
     Filed as Exhibit 1 to the Company's
     Registration Statement on Form 8-A filed
     on November 22, 1993 (File No. 0-10007).
    
 4d  Second Supplemental Indenture,         Incorporated herein
     executed on September 27, 1995         by reference.
     relating to the Secured Medium
     Term Notes, Series A, filed as
     Exhibit 4(c) to the Registrant's
     Form 10-K for the fiscal year ended
     December 31, 1995.

 4e  Amendment to Second Supplemental       Incorporated herein
     Indenture, dated as of October         by reference.
     12, 1995, relating to the Secured 
     Medium Term Notes, Series A, filed 
     as Exhibit 4(d) to the Registrant's 
     Form 10-K for the fiscal year ended 
     December 31, 1995.

 4f  Third Supplemental Indenture, dated    Filed herewith as
     as of December 15, 1995 to Second      Exhibit 4f.
     Amended and Restated First Mortgage
     Indenture
                                            
 4g  Revolving Credit Agreement for         Incorporated herein 
     Colonial Gas Company, dated as         by reference.
     of September 12, 1997, filed as 
     Exhibit 4(e) to Form 10-Q of
     the Registrant for the quarter ended
     September 30, 1997. 

 4h  Revolving Credit Agreement for         Incorporated herein
     Massachusetts Fuel Inventory Trust,    by reference.
     dated as of September 12, 1997,           
     filed as Exhibit 4(f) to Form 10-Q 
     of the Registrant for the quarter 
     ended September 30, 1997. 

 4i  Purchase Contract, dated as of June    Incorporated herein
     27, 1990 between Massachusetts Fuel    by reference.
     Inventory Trust acting by and through
     its Trustee, Shawmut Bank, N.A. and
     Colonial Gas Company, filed as 
     Exhibit 10(e) to Form 8-K of the
     Registrant for quarter ended 
     June 30, 1990.

 4j  Security Agreement and Assignment of   Incorporated herein
     Contracts, dated as of September 12,   by reference.
     1997 made by Massachusetts Fuel 
     Inventory Trust in favor of Fleet
     National Bank as Agent for designated
     banks, filed as Exhibit 4(h) to Form 10-Q
     of the Registrant for the quarter ended
     September 30, 1997.

 4k  Trust Agreement, dated as of June 22,  Incorporated herein
     1990 between Colonial Gas Company      by reference.
     (as Trustor) and Shawmut Bank, N.A.
     (as Trustee), filed as Exhibit 10(d)
     to Form 8-K of the Registrant for
     quarter ended June 30, 1990.
                                           
 5   Opinion re:  legality.                 Filed herewith as
                                            Exhibit 5.

 23a Consent of Grant Thornton LLP.         Filed herewith as
                                            Exhibit 23a.

                                            
 23b Consent of Palmer & Dodge LLP.          Contained in 
                                    					    Exhibit 5 hereto.

 24  Power of Attorney.                      Included on the
                                             signature page
					                                        attached hereto.

Item 17.  Undertakings

     (a)  The undersigned registrant hereby undertakes:

          (1) To file, during any period in which offers or
sales are being made, a post-effective amendment to this
registration statement:

           (i) To include any prospectus required by Section
10(a)(3) of the Securities Act;

           (ii)     To reflect in the prospectus any facts
or events arising after the effective date of the
registration statement (or the most recent post-effective
amendment thereof) which, individually or in the aggregate,
represent a fundamental change in the information sets forth
in the registration statement; notwithstanding the foregoing, any
increase or decrease in volume of securities offered (if the total
dollar value of securities offered would not exceed that which was
registered) and any deviation from the low or high end of the
estimated maximum offering range may be reflected in the form of
prospectus filed with the Commission pursuant to Rule 424(b) if, in
the aggregate, the changes in volume and price represent no more
than a 20 percent change in the maximum aggregate offering price set
forth in the "Calculation of Registration Fee" table in the
effective registration statement;

           (iii)    To include any material information with
respect to the plan of distribution not previously disclosed
in the registration statement or any material change to such
information in the registration statement;

     Provided, however, that paragraphs (a)(1)(i) and
(a)(1)(ii) do not apply if the information required to be
included in a post-effective amendment by those paragraphs
is contained in periodic reports filed by the registrant
pursuant to Section 13 or 15(d) of the Exchange Act that are 
incorporated by reference in the registration statement.

          (2)  That, for the purpose of determining any
liability under the Securities Act, each such post-
effective amendment shall be deemed to be a new registration
statement relating to the securities offered therein, and
the offering of such securities at that time shall be deemed
to be the initial bona fide offering thereof.

          (3)  To remove from registration by means of a
post-effective amendment any of the securities being
registered which remain unsold at the termination of the
offering.

     (b)  The undersigned registrant hereby undertakes that,
for purposes of determining any liability under the
Securities Act, each filing of the registrant's
annual report pursuant to Section 13(a) or 15(d) of
the Exchange Act (and, where applicable, each filing of an 
employee benefit plan's annual report pursuant to Section 15(d) 
of the Exchange Act) that is incorporated by reference in the 
registration statement shall be deemed to be a new registration
statement relating to the securities offered therein, and the 
offering of such securities at that time shall be deemed to be the
initial bona fide offering thereof.

                         SIGNATURES

The Registrant:  Pursuant to the requirements of the
Securities Act, the registrant certifies that it has
reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused
this registration statement to be signed on its behalf by
the undersigned, thereunto duly authorized, in the City of
Lowell, Commonwealth of Massachusetts, on this 5th day of
January, 1998.


                                   COLONIAL GAS COMPANY

                                   s/F.L. Putnam, III
                                   President and Chief
                                   Executive Officer

Power of Attorney:  We, the undersigned officers and
directors of Colonial Gas Company, hereby severally
constitute and appoint Dennis W. Carroll and Timothy A. Clark
and each of them singly, our true and lawful attorneys-in-
fact, with full power to them in any and all capacities, to
sign any amendments to this Registration Statement on Form S-
3 including any post-effective amendments thereto, and to
file the same, with exhibits thereto and other documents in
connection therewith, with the Commission, hereby ratifying 
and confirming all that each of said attorneys-in-fact may 
do or cause to be done by virtue hereof.  Witness our hands
and common seal on the dates set forth below.

Pursuant to the requirements of the Securities Act,
this registration statement has been signed below by the
following persons in the capacities and on the dates
indicated.

Officers:

     Principal Executive Officer:	           Date:

     s/F.L. Putnam, III, President and       January 5, 1998
     Chief Executive Officer

     Principal Financial Officer:

     s/Nickolas Stavropoulos,                January 5, 1998
     Executive Vice President-Finance, 
     Marketing & Chief Financial Officer

     Principal Accounting Officer:

     s/Dennis W. Carroll, Vice President     January 5, 1998
     and Treasurer

                          FORM S-3
                              
                              
Directors:					      Date:



			
s/J.P. Harrington				January 5, 1998



s/R.L. Hull					     January 5, 1998



s/R.A. Perkins					  January 5, 1998



s/F.L. Putnam, Jr.			January 5, 1998



s/F.L. Putnam, III			January 5, 1998



s/A.B. Sides, Jr.				January 5, 1998



s/M.M. Stapleton				 January 5, 1998



s/N. Stavropoulos				January 5, 1998


 
s/C.O. Swanson		 			 January 5, 1998



                          EXHIBIT INDEX



Exhibit          Exhibit
Number           Reference

 3a  Restated Articles of Organization of   Incorporated herein
     Colonial Gas Company, dated April      by reference.
     19, 1989, as amended on July 16,
     1992 and supplemented by a
     certificate of vote of Directors
     establishing a series of a class of
     stock filed on November 30, 1993,
     filed as Exhibit 3(a) to Form 10-K
     of the Registrant for the year ended
     December 31, 1996.
                                            
 3b  By-Laws of Colonial Gas Company, as    Incorporated herein
     amended to date, filed as Exhibit      by reference.
     3(b) to Form 10-K of the Registrant
     for the year ended December 31,
     1996.
                                            
 4a  Second Amended and Restated First      Incorporated herein
     Mortgage Indenture, dated as of June   by reference.
     1, 1992, filed as Exhibit 4(b) to
     Form 10-Q of the Registrant for the
     quarter ended June 30, 1992.

 4b  First Supplemental Indenture, dated    Incorporated herein
     as of June 15, 1992, filed as          by reference.
     Exhibit 4(c) to Form 10-Q of the
     Registrant for the quarter ended
     June 30, 1992.

 4c  Form of Rights Agreement, dated as     Incorporated herein
     of December 1, 1993, between the       by reference.
     registrant and BankBoston, N.A.
     (f/k/a The First National Bank of
     Boston), as Rights Agent, together
     with the following exhibits thereto:
     (i) Form of Vote Establishing the
     Series A-1 Junior Participating 
     Preferred Stock, (ii) Form of Rights
     Certificate, and (iii) Summary of
     Rights to Purchase Preferred Shares.
     Filed as Exhibit 1 to the Company's
     Registration Statement on Form 8-A filed
     on November 22, 1993 (File No. 0-10007).
 
 4d  Second Supplemental Indenture,         Incorporated herein
     executed on September 27, 1995         by reference.
     relating to the Secured Medium
     Term Notes, Series A, filed as
     Exhibit 4(c) to the Registrant's
     Form 10-K for the fiscal year ended
     December 31, 1995.

 4e  Amendment to Second Supplemental       Incorporated herein
     Indenture, dated as of October         by reference.
     12, 1995, relating to the Secured 
     Medium Term Notes, Series A, filed 
     as Exhibit 4(d) to the Registrant's 
     Form 10-K for the fiscal year ended 
     December 31, 1995.

 4f  Third Supplemental Indenture, dated    Filed herewith as
     as of December 15, 1995 to Second      Exhibit 4f.
     Amended and Restated First Mortgage
     Indenture
                                          
 4g  Revolving Credit Agreement for         Incorporated herein 
     Colonial Gas Company, dated as         by reference.
     of September 12, 1997, filed as 
     Exhibit 4(e) to Form 10-Q of
     the Registrant for the quarter ended
     September 30, 1997. 

 4h  Revolving Credit Agreement for         Incorporated herein
     Massachusetts Fuel Inventory Trust,    by reference.
     dated as of September 12, 1997,           
     filed as Exhibit 4(f) to Form 10-Q 
     of the Registrant for the quarter 
     ended September 30, 1997. 

 4i  Purchase Contract, dated as of June    Incorporated herein
     27, 1990 between Massachusetts Fuel    by reference.
     Inventory Trust acting by and through
     its Trustee, Shawmut Bank, N.A. and
     Colonial Gas Company, filed as 
     Exhibit 10(e) to Form 8-K of the
     Registrant for quarter ended 
     June 30, 1990.

 4j  Security Agreement and Assignment of   Incorporated herein
     Contracts, dated as of September 12,   by reference.
     1997 made by Massachusetts Fuel 
     Inventory Trust in favor of Fleet
     National Bank as Agent for designated
     banks, filed as Exhibit 4(h) to Form 10-Q
     of the Registrant for the quarter ended
     September 30, 1997.

 4k  Trust Agreement, dated as of June 22,  Incorporated herein
     1990 between Colonial Gas Company      by reference.
     (as Trustor) and Shawmut Bank, N.A.
     (as Trustee), filed as Exhibit 10(d)
     to Form 8-K of the Registrant for
     quarter ended June 30, 1990.
                                           
 5   Opinion re:  legality.                 Filed herewith as
                                            Exhibit 5.

 23a Consent of Grant Thornton LLP.         Filed herewith as
                                            Exhibit 23a.

                                            
 23b Consent of Palmer & Dodge LLP.         Contained in 
                                   					    Exhibit 5 hereto.

 24  Power of Attorney.                     Included on the
                                            signature page
                                   					    attached hereto.


                                                           Exhibit 4f


                      COLONIAL GAS COMPANY
                  Third Supplemental Indenture
             dated as of December 15, 1995 to Second
          Amended and Restated First Mortgage Indenture


     The above Supplemental Indenture was filed for recordation
in Massachusetts as follows:


Location                 Date           Reference

Secretary of the        _______         Document Nos.______
Commonwealth                            ______ and ______

Barnstable County       _______         Instrument No. ______
                                        Book ______ Page ______

Barnstable County,      _______         Document No. ______
 Land Registration                      Certificates of Title Nos.
                                        ______, ______ and ______


Middlesex County,       _______         Instrument No. ______
     North Division                     Book ______, Page ______

Middlesex County,       _______         Instrument No.______
    South Division                      Book ______, Page ______

Plymouth                _______         Instrument No.______
                                        Book ______, Page ______


 THIS SUPPLEMENTAL INDENTURE, dated as of December 15, 1995
(hereinafter referred to as this "Supplemental Indenture" or this
"Instrument"), made and entered into by and between COLONIAL GAS
COMPANY (formerly named "Lowell Gas Company"), a corporation duly
organized and existing under the laws of The Commonwealth of
Massachusetts, having its principal place of business at 40
Market Street, Lowell, Massachusetts (hereinafter referred to as
the "Company"), and THE FIRST NATIONAL BANK OF BOSTON, a national
banking association, having its principal place of business at
100 Federal Street, Boston, Massachusetts, as Trustee
(hereinafter referred to as the "Existing Trustee") under the
Second Amended and Restated First Mortgage Indenture dated as of
June 15, 1992, as supplemented by the First Supplemental
Indenture dated as of June 15, 1992 and the Second Supplemental
Indenture dated as of August 1, 1995 and amended as of October
12, 1995 (as so supplemented, the "Indenture"), which amends,
restates and supplements the amended and Restated First Mortgage
Indenture dated as of July 1, 1981 from the Company to State
Street Bank and Trust Company, as supplemented by the First to
Eighth Supplemental Indenture thereto, inclusive, which amended,
restated and supplemented the First Mortgage Indenture and Deed
of Trust dated as of June 1, 1951 from Lowell Gas Company to
State Street Bank and Trust Company, as supplemented by the First
to Twenty-Second Supplemental Indentures thereto, inclusive, and
the Indenture of Trust and First Mortgage dated as of April 1,
1950 from Cape Cod Gas Company (which has been merged into and
with the Company) to State Street Bank and Trust Company, as
supplemented by the First to Twenty-Fifth Supplemental Indenture,
thereto, inclusive.

     WHEREAS, the Existing Trustee has sold and transferred
substantially all of its trust business and related assets to
STATE STREET BANK AND TRUST COMPANY (the "Successor Trustee"),
including its interests, rights and title as Trustee under the
Indenture (the "Transfer");
and

     WHEREAS, Section 10.22 of the Indenture provides that any
corporation to which "substantially all of the business and
assets of the (existing) Trustee may be transferred" shall become
a successor Trustee under the Indenture so long as such
corporation is qualified to serve as Trustee under Sections 4.02
and 10.01 of the Indenture; and

     WHEREAS, the Successor Trustee has asserted that it is
qualified to serve as Trustee under Sections 4.02 and 10.01 of
the Indenture; and

     WHEREAS, the Company, the Existing Trustee and the Successor
Trustee seek to clarify and confirm that the Transfer has
effectively empowered the Successor Trustee to act as trustee
under the Indenture without publication or other provision of
notice and without further action by the Company or the
Bondholders appointing the Successor Trustee as Trustee.

     NOW THEREFORE, in consideration of the premises and
understandings set forth herein, and other good and valuable
consideration, the receipt and sufficiency of which is hereby
acknowledged, the Company, the Existing Trustee and the Successor
Trustee hereby state as follows:

     (1)  The Successor Trustee hereby represents that it is
qualified and eligible under the provisions of Section 4.02 and
10.01 of the Indenture to be appointed successor Trustee, and
hereby accepts its appointment as successor Trustee as aforesaid.

     (2)  Pursuant to Section 12.01(d) of the Indenture, the
Company, the Existing Trustee and the Successor Trustee each
hereby acknowledge and agree that the Transfer permits the
Successor Trustee to become Trustee under the Indenture without
the Existing Trustee resigning under Section 10.17 of the
Indenture or being removed under Section 10.18 of the Indenture
and without the Successor Trustee being appointed by the
Directors of the Company or the Bondholders under Section 10.19
of the Indenture.

     (3)  Pursuant to Section 12.01(c) of the Indenture and in
connection with the foregoing, the Existing Trustee does hereby
confirm that effective as of the date hereof, it has GIVEN,
GRANTED, BARGAINED, SOLD, ASSIGNED, TRANSFERED AND SET OVER unto
the Successor Trustee, its successors and assigns forever, all
the rights and powers of the Trustee in and to the trust estate
and all rights, powers, trusts, duties and obligations of the
Trustee under the Indenture; and the Existing Trustee does hereby
pay over, assign, and deliver to the Successor Trustee any and
all money, if any, and property, if any, held by the Existing
Trustee as Trustee.  The Company for the purpose of more fully
and certainly vesting in and confirming to the Successor Trustee
said estate, properties, rights, powers, trusts, duties and
obligations, and at the request of the Successor Trustee, joins
in the execution hereof.

     (4)  Notwithstanding the Transfer, the Company shall remain
obligated under the Indenture to compensate, reimburse and
indemnify the Existing Trustee for the period of its trusteeship
under the Indenture.

     (5)  Each of the Existing Trustee and the
Successor Trustee shall not be taken impliedly to waive by this
Supplemental Indenture any right it would otherwise have.  As
provided in the Indenture, this Supplemental Indenture shall
hereafter form a part of the Indenture.

     (6)  Unless otherwise defined herein, all terms used herein
which are defined in the Indenture shall have the meanings
assigned to them in the Indenture.

     (7)  This Supplemental Indenture shall become void when the
Indenture shall be void.

     (8)  If any provision of this Supplemental Indenture limits,
qualifies or conflicts with the duties imposed by operation of
Section 318(c) of the Trust Indenture Act of 1939, as amended,
such imposed duties shall control.

     (9)  This Supplemental Indenture may be simultaneously
executed in any number of counterparts, each of which shall be
deemed an original; and all said counterparts executed and
delivered, each as an original, shall constitute but one and the
same instrument, which shall for all purposes be sufficiently
evidenced by any such original counterpart.

                           
     (10) This Instrument shall be governed by and construed in
accordance with the laws of the Commonwealth of Massachusetts.

     IN WITNESS WHEREOF, COLONIAL GAS COMPANY has caused this
Supplemental Indenture to be executed, and its corporate seal to
be hereto affixed, by its officers thereunto duly authorized, and
THE FIRST NATIONAL BANK OF BOSTON has caused this Supplemental
Indenture to be executed, and its corporate seal to be hereto
affixed, by its officers thereunto duly authorized, and STATE
STREET BANK AND TRUST COMPANY has caused this Supplemental
Indenture to be executed, and its corporate seal to be hereto
affixed, by its officers thereunto duly authorized, all as of the
15th day of December, 1995.

                                   COLONIAL GAS COMPANY

          [Seal]
                              				By  s/Dennis W. Carroll
                       		             Vice President


                              				By  s/Dennis W. Carroll
                                      Treasurer
Attest:

s/Timothy A. Clark


The Commonwealth of Massachusetts  )
                                   ) ss.:
County of Middlesex                )



On this 15th_ day of December, 1995 before me personally
appeared Dennis W. Carroll and Timothy A. Clark,
to me personally known, who, being by me duly sworn, did say that
they are the V.P. and Treasurer and Asst. Clerk,
respectively, of Colonial Gas Company, that the seal affixed to
the foregoing instrument is the corporate seal of said
corporation, and that said instrument was signed and sealed by
them on behalf of said corporation by authority of its Board of
Directors; and the said Dennis W. Carroll and Timothy A. Clark,
acknowledged said instrument to be the free
act and deed of said corporation.


                                                       [Seal]

                                   /sSusan E. Mousseau
                                   Notary
                                   My Commission Expires: 4/3/98



                                   THE FIRST NATIONAL BANK OF
                                   BOSTON, as Existing Trustee



          [Seal]
 
	                              			By s/Carol A. Anthony
                                     Authorized Officer

Attest:

s/Cindy M. Beauolin



The Commonwealth of Massachusetts  )
                                   ) ss.:
County of Middlesex                )



     On this 15th day of December, 1995 before me personally
appeared Carol A. Anthony, to me personally known,
who, being by me duly sworn, did say that he/she is an Authorized
Officer of The First National Bank of Boston, that the seal
affixed to the foregoing instrument is the corporate seal of said
bank, and that said instrument was signed and sealed by him/her
on behalf of said bank, by authority of its Board of Directors;
and the said Carol A. Anthony, acknowledged said instrument
to be the free act and deed of said bank, as existing trustee.


                                                        [Seal]


                                   s/Judith A. Mercurio
                                   Notary
                                   My Commission Expires: April 15, 1999




                                   STATE STREET BANK AND
                                   TRUST COMPANY, as Successor
              		                   Trustee


                               				By s/Jill Olsen
	                                     Authorized Officer

Attest:

s/Todd R. Di Nezza



The Commonwealth of Massachusetts   )
                                    ) ss.:
County of Middlesex                 )


     On this 15th day of December, 1995 before me personally
appeared Jill Olson, to me personally known,
who, being by me duly sworn, did say that he/she is an Authorized
Officer of State Street Bank and Trust Company, that the seal
affixed to the foregoing instrument is the corporate seal of said
trust company, and that said instrument was signed and sealed by
him/her on behalf of said trust company, by authority of its
Board of Directors; and the said Jill Olson,
acknowledged said instrument to be the free act and deed of said
trust company, as successor trustee.


                                                        [Seal]


                                   s/Cecil A. Gilbert
                                   Notary
                                   My Commission Expires: July 12, 2002



        [End of Exhibit 4f to Form S-3 of Colonial Gas Company]



                             


                                                   Exhibit 5




                                   January 5, 1998


Colonial Gas Company
40 Market Street
Lowell, MA 01852

  (Colonial Gas Company Registration Statement on Form S-3
         Relating to 400,000 Shares of Common Stock,
                 Par Value $3.33 Per Share)

Dear Sirs:

     We are furnishing this opinion in connection with the
filing by Colonial Gas Company (the "Company") of a
registration statement on Form S-3 (the "Registration
Statement") under the Securities Act of 1933, as amended,
with respect to 400,000 shares of Common Stock, par value
$3.33 per share (the "Shares"), of the Company to be issued
pursuant to the Colonial Gas Company Dividend Reinvestment
and Common Stock Purchase Plan (the "Plan").  We are counsel
to the Company and we have examined such documents,
certificates and papers, including the order of the
Massachusetts Department of Public Utilities (which has been
succeeded by the Massachusetts Department of
Telecommunications and Energy (the "MDTE"), D.P.U./D.T.E. 97-
83, approving and authorizing the issuance and sale of the
Shares, and have made such examination of law, as we
considered necessary in order to furnish this opinion.

     Based on the foregoing, we are of the opinion that the
Shares have been duly and validly authorized by all
necessary action on the part of the Company and, when the
Shares have been issued and sold and the consideration
therefor received by the Company in accordance with the
terms of the Plan, the Shares will be validly issued, fully
paid and non-assessable, provided that, in the event that
the aggregate price at which the Shares are issued exceeds
an amount equal to $45,896,060 less the principal amount of
any indebtedness with a maturity of more than one year sold
by the Company after the date hereof in excess of
$10,000,000 aggregate principal amount of such indebtedness,
further MDTE approval will be required.  Except as set forth
in the preceding sentence, upon the effective date of the
Registration Statement, no other authorization, consent or
approval by any regulatory authority will be required for
the valid issuance and sale of the Shares.

     We hereby consent to the filing of this opinion as an
exhibit to the Registration Statement and to the reference
to this firm under the caption "Legal Opinions" in the
Prospectus which forms part of the Registration Statement.

                                   Very truly yours,


                                   PALMER & DODGE LLP



      [End of Exhibit 5 to Form S-3 of Colonial Gas Company]


                                                  Exhibit 23a



     Consent of Independent Certified Public Accountants


      We  hereby  consent to the use of  our  reports  dated

January  13, 1997, on the consolidated financial  statements

and  schedule of Colonial Gas Company and subsidiaries  for

each  of  the  three years in the period ended December  31,

1996,   incorporated  by  reference  in  this   Registration

Statement  on Form S-3 and Prospectus and such  reports  are

included  in  or incorporated by reference in  Colonial  Gas

Company's  Annual  Report on Form 10-K for  the  year  ended

December 31, 1996. We also consent to the reference  to  our

firm under the caption "Experts" in this Prospectus.




                                   GRANT THORNTON LLP
Boston, Massachusetts
January 5, 1998

    [End of Exhibit 23a to Form S-3 of Colonial Gas Company]



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