Exhibit 10.7

                               EASTERN ENTERPRISES

                     Supplemental Executive Retirement Plan

                                    Amendment


         Pursuant  to  Section  14  of  the  Eastern  Enterprises   Supplemental
Executive  Retirement Plan (as amended,  the "Plan"), the Plan is hereby amended
as follows, effective immediately:

         1.        Section 2(a)  (definition of "Eastern") is amended to read
as follows:  "The word "Eastern" will mean Eastern  Enterprises  and any
successor,  including  without  limitation  any successor to or acquiror of the
stock or assets of Eastern in a transaction constituting a Change of Control.'4

         2.        Section 2(m) (definition of "Change of Control") is amended
to read as follows:

         "A Change of Control will be deemed to have  occurred if, after January
          1, 1998, any of the following occurs:

                  (i) any "person"  (as such term is used in Sections  13(d) and
                  14(d) of the  Securities  Exchange Act of 1934, as amended) or
                  group  of  "persons"  (as so  defined),  other  than  Eastern,
                  becomes  a  beneficial   owner   directly  or   indirectly  of
                  securities  representing  twenty-five percent (25%) or more of
                  the  combined  voting  power  of the then  outstanding  voting
                  securities of Eastern; or

                  (ii)there is consummated a merger or consolidation  ("merger")
                  involving  Eastern  and  immediately  after  such  merger  the
                  beneficial owners immediately prior to such merger of the then
                  outstanding  voting  securities  of Eastern do not continue to
                  own  beneficially  at least sixty  percent (60%) of the voting
                  securities  of the  entity  or  entities  resulting  from such
                  merger; or

                  (iii) there is consummated a sale, lease, exchange,  spin- off
                  or other transfer (any of the foregoing,  a "transfer") of all
                  or substantially  all of the assets or business of Eastern and
                  its  subsidiaries,  other than any such transfer  resulting in
                  beneficial  ownership of not less than sixty  percent (60%) of
                  the assets or business so  transferred  or not less than sixty
                  percent  (60%)  of the  voting  securities  of the  entity  or
                  entities to which such assets were  transferred  by the owners
                  immediately  prior to the  transfer  of the  then  outstanding
                  voting securities of Eastern; or

                  (iv)  within  any  two-year  period,  individuals  who  at the
                  beginning of such period  constituted the Board of Trustees of
                  Eastern cease for any reason to constitute a majority thereof;
                  provided,  that  any  trustee  who  is not  in  office  at the
                  beginning  of such  two-year  period  but  whose  election  or
                  nomination  for  election  was  approved by a vote of at least
                  two-thirds  of the  trustees  in  office  at the  time of such
                  approval who were either  trustees of Eastern at the beginning
                  of such  period or who were  elected to the Board of  Trustees
                  pursuant to an election which was, or for which the nomination
                  for election was,  previously  so approved  shall be deemed to
                  have been in office at the beginning of such two-year  period;
                  or

                  (v) in the case of an Eligible  Officer employed by Boston Gas
                  Company,  Eastern  sells  or  otherwise  disposes  of  all  or
                  substantially all of its stock of Boston Gas Company or Boston


                  Gas   Company   sells  or   otherwise   disposes   of  all  or
                  substantially all of its assets,  excluding in either case any
                  transaction resulting in beneficial ownership of not less than
                  fifty percent  (50%) of the assets or business so  transferred
                  or not less than fifty percent (50%) of the voting  securities
                  of  the  entity  or   entities   to  which  such  assets  were
                  transferred by the owners immediately prior to the transfer of
                  the then outstanding voting securities of Eastern; or

                  (vi) in the case of an  Eligible  Officer  employed by Midland
                  Enterprises Inc.,  Eastern sells or otherwise  disposes of all
                  or substantially all of its stock of Midland  Enterprises Inc.
                  or Midland Enterprises Inc. sells or otherwise disposes of all
                  or substantially  all of its assets,  excluding in either case
                  any transaction  resulting in beneficial ownership of not less
                  than  fifty  percent  (50%)  of  the  assets  or  business  so
                  transferred or not less than fifty percent (50%) of the voting
                  securities of the entity or entities to which such assets were
                  transferred by the owners immediately prior to the transfer of
                  the then outstanding voting securities of Eastern."

     3.       A new subsection 2(n) is added to read as follows:

     "(n)         The words "COC Agreement" mean an agreement between an Officer
                  and Eastern or one or more  subsidiaries of Eastern  providing
                  for  severance  pay or other  benefits  to the  Officer in the
                  event of a Change of Control or similar  change in the control
                  of Eastern and its  subsidiaries  or upon  termination  of the
                  Officer's  employment in connection with or during a specified
                  period  that  includes  such  Change  of  Control  or  similar
                  change."

     4.       Section 4 is amended by adding at the end the following text:

              "An  Officer  who, at any time  during the period  commencing  six
              months  before  and ending  two years  after a Change of  Control,
              satisfies the  requirements of (i), (ii) and (iii) of this Section
              4 will also be an Eligible Officer covered by the Plan, whether or
              not he has attained age fifty-five (55), if the employment of such
              Officer  with  Eastern  and  its  subsidiaries   terminates  under
              circumstances  which at the time or upon a  subsequent  Change  of
              Control  entitle such  officer to a severance  payment or payments
              under a COC  Agreement  (but if the  employment of such Officer so
              terminates,  he shall be deemed to have been an  Eligible  Officer
              from the beginning of the period  commencing six months before and
              ending two years after the Change of Control)."

     5.       Section  5(a)(i) is amended by adding the words "or Section  5(c)
below"  after the words "in Section 5(a)(ii) below" in the first sentence.

     6.       Section  5(a)(ii) is amended by deleting  the first word
("Every")  and  inserting  in its place the words: "Subject to Section 5(c)
below, every".

     7.       Section  5(b)(i) is amended by adding the words "or Section
5(c) below"  after the words "in Section 5(b)(ii) below" in the first sentence.

     8.       Section  5(b)(ii) is amended by deleting  the first word
("Every")  and  inserting  in its place the words: "Subject to Section 5(c)
below, every".

     9.  Sections  5(c) and  5(d)  are  redesignated  Sections  5(d)  and  5(e),
respectively,  and a new Section  5(c) is added  immediately  following  Section
5(b)(ii), to read in its entirety as follows:

     "(c)         Benefits Following a Change of Control. Every Eligible Officer
                  whose  employment by Eastern and its  subsidiaries  terminates
                  (other than by death) under circumstances which at the time or
                  upon a subsequent Change of Control entitle him to a severance


                  payment or payments  under a COG Agreement will be eligible to
                  receive an annual amount  determined under this paragraph (c).
                  The annual amount  determined  under this paragraph (c) is the
                  product of

              (i)          the Eligible  Officer's  average annual
                           Compensation for those five (5) calendar years,
                           selected  from  among the last ten (10)  calendar
                           years of his  Executive  Service,  in
                           which his aggregate  Compensation  was highest;
                           provided,  that the computation of such
                           Eligible  Officer's  average  annual  Compensation
                           for purposes of this  paragraph  (i)
                           shall include the period by reference to which the
                           severance  payment or payments  under
                           the COG Agreement are  determined  (for example,
                           three years in the case of a severance
                           payment equal to three years of compensation)  and
                           the amount of such severance  payment
                           or  payments,  if the  inclusion of such  factors in
                           the  computation  would result in a
                           higher  amount of average  annual  Compensation
                           than would result from a  determination
                           under this paragraph (i) without regard to such
                           factors; and

              (ii)         a percentage determined according to the following
                           table:

                                Non-Calendar
                         Years of Executive Service              Percentage

                                  Less than 10                     None
                                       10                            35
                                       11                          36.5
                                       12                            38
                                       13                          39.5
                                       14                            41
                                       15                          42.5
                                       16                            44
                                       17                          45.5
                                       18                            47
                                       19                          48.5
                                   20 or more                        50

                            In  determining  "non-calendar  years  of  Executive
                            Service" for purposes of this paragraph (c)(ii), the
                            rules  described  in Section  5(a)(ii)  shall  apply
                            except that an Eligible  Officer  described  in this
                            subsection  (c) shall be  credited  with a number of
                            additional  non-calendar  years of Executive Service
                            equal to the number of years  with  respect to which
                            the  severance  payment  or  payments  under his COG
                            Agreement are determined  (for example,  three years
                            in the case of a  severance  payment  equal to three
                            years of compensation); and

                   (iii)    in the  case of an  Eligible  Officer  whose  age at
                            commencement  of benefits is less than sixty (60), a
                            percentage  determined  according  to the  following
                            table:

                                     Age at
                                 at Commencement
                                   of Benefit                         Percentage

                                        59                                  95
                                        58                                  90
                                        57                                  85
                                        56                                  80
                                        55                                 75"



         10.       Section 5(d), as hereinabove redesignated, is amended to
read in its entirety as follows:

         "Death Benefits.  If an Eligible  Officer dies while serving (or deemed
          to be serving under Section 6 below) as an Eligible Officer,  or after
          termination of employment in accordance  with Section  5(e)(i),  (ii),
          (iii)  or (iv) but  before  commencement  of  benefits,  and  leaves a
          surviving  spouse,  the  spouse,  if he or she  survives  to the  date
          benefits commence,  will be eligible to receive an annual amount equal
          to the amount,  if any, the Eligible  Officer would have been entitled
          to receive under (a),(b) or (c) above,  whichever is  applicable,  had
          his employment  terminated in accordance with Section  5(e)(i),  (ii),
          (iii) or (iv) on the earlier of the day before the Eligible  Officer's
          death or the date of actual termination of employment."

         11. Section 5(e), as hereinabove  redesignated,  is amended by deleting
the words "upon or after his attaining age fifty-five  (55),  but" and the comma
after the word "(65)" in the first sentence thereof;  by replacing the period at
the end of clause (iii) with the words "; or"; and by adding  immediately  after
clause (iii) as so amended and before the sentence which begins "No benefit with
respect. . ."the following new clause (iv):

         "(iv)     in the case of an Eligible Officer  described at Section 5(c)
                   above,  the Eligible  Officer's  employment  terminates under
                   circumstances  which at the time or upon a subsequent  Change
                   of Control  entitle  him to a  severance  payment or payments
                   under a COC Agreement."

         12.  Section 7 is amended by deleting the  reference to "Section  5(c)"
and replacing it with a reference to "Section  5(d)" . 13.  Section 9 is amended
by deleting  the words  "Section  5(a) or Section 5(b) above" in the second line
and replacing them with the words  "Section  5(a),  Section 5(b) or Section 5(c)
above".

         13. Section 9 is amended by deleting the words "Section 5(a) or Section
5(b) above" in the second line and replacing  them with the words "Section 5(a),
Section 5(b) or Section 5(c) above".

         14. The paragraph of Section 9 that begins "If an Eligible Officer dies
while  employed . . ."is  amended by adding the words "or after  termination  of
employment in accordance with Section  5(e)(i),  (ii),  (iii) or (iv) but before
commencement  of benefits,"  after the words  "Eligible  Officer," in the second
line and by deleting the words  "Section 5(c)" and replacing them with the words
"Section 5(d)".

         15. Section 10 as in effect prior to the amendments described herein is
amended by deleting the words "Section 5(c)" each time they appear and replacing
them with the words  "Section  5(d)";  by deleting the words  "Eligible  Officer
retired with the written  permission  of the  Compensation  Committee on the day
before  his  death"  and  replacing  them  with the  words  "Eligible  Officer's
employment  terminated in accordance with Section 5(e)(i),  (ii), (iii) or (iv);
and by adding the following proviso  immediately before the period at the end of
the section;  "; provided,  that in the case of an Eligible Officer described in
Section 5(c),  benefits  shall not commence  prior to the first day of the month
next following the date the Eligible  Officer attains or would have attained age
55".

         16.       Section 11 is amended by adding the following  sentence at
the end thereof:  "The  provisions of this Section 11 shall not apply in the
case of an Eligible Officer receiving benefits pursuant to Section 5(c)."

         17.       The second subparagraph of Section 12 (begins:
"Notwithstanding  the foregoing ...") is amended to read as follows:

         "Notwithstanding  the  foregoing,  Eastern in its sole  discretion  may
          establish a so-called  "rabbi" trust or similar trust,  whether or not
          conforming to Rev. Proc.  92-64, or may avail itself of any such trust


          which it has  previously  established,  to provide  for the payment of
          benefits hereunder, subject to such terms as the Board of Trustees may
          determine (a "trust").  In the event  Eastern  established  a trust in
          respect of the Plan or causes a pre-existing  trust to cover the Plan,
          and at the time of a Change  of  Control  such  trust (i) has not been
          terminated or revoked and (ii) is not "fully  funded" (as  hereinafter
          defined), Eastern shall promptly deposit in such trust cash sufficient
          to cause the trust to be "fully funded" as of the date of the deposit.
          For  purposes  of this  subparagraph,  any such trust  shall be deemed
          "fully  funded"  as of any date if, as of that date,  the fair  market
          value of the assets  held in trust is not less than (1) the  aggregate
          present value as of that date of all benefits then in pay status under
          the Plan  (including  benefits  not yet  commenced  but in  respect of
          Eligible  Officers whose  employment has terminated in accordance with
          Section 5(e)(i),  (ii), (iii) or (iv)) plus (2) the aggregate  present
          value as of that date of all benefits  that would be payable under the
          Plan if all other persons who are (or, but for not yet having attained
          age 55, would be)  Eligible  OfficErs  were deemed to have  terminated
          employment  on that date in  accordance  with Section  5(e)(i),  (ii),
          (iii) or (iv) plus (3) the aggregate  present value as of that date of
          all benefits  payable (as determined  under rules similar to the rules
          described in (1) and (2)) under all other  defined-benefit  type plans
          and  arrangements  provided  for  through  the  trust,  plus  (4)  the
          aggregate of the account  balances,  determined as of such date, under
          all  individual-account  type  plans  and  arrangements  provided  for
          through  the  trust.  In  applying  clauses  (1),  (2)  and (3) of the
          previous  sentence,  present  value shall be  determined  by using the
          interest  and  mortality  assumptions  used in  determining  lump  sum
          present  values  under the  qualified  defined  benefit  pension  plan
          maintained by Eastern, of if no such qualified plan is then maintained
          by Eastern,  by applying the  assumptions  used prior to the Change of
          Control in determining  Eastern's  pension expense under FAS 87 or any
          successor pronouncement with respect to such plan or arrangement."

         18.       Section 14 is amended to provide as follows:

         "Termination:  Amendment: Other. Eastern reserves the right at any time
          by action of its Board of Trustees to  terminate  the Plan or to amend
          its  provisions  in any way,  except  that  following  the date  which
          precedes  by six  months a Change  of  Control  no such  amendment  or
          termination  shall  reduce the amount of Eastern's  obligations  under
          Section 12 or extend the period  within which Eastern may satisfy such
          obligations.  In addition, the Plan will automatically terminate if at
          any time (and as of the date that) the Retirement  Plan is terminated.
          Notwithstanding the foregoing, no termination or amendment of the Plan
          (a "Plan  Change")  will reduce the benefit  payable under the Plan to
          any person with respect to an Eligible  Officer whose  employment with
          Eastern and its subsidiaries was terminated prior to such Plan Change,
          nor shall any Plan Change reduce the benefit,  if any, to be paid with
          respect to a person who is (or,  but for not yet having  attained  age
          55,  would be) an  Eligible  Officer  on the date of such Plan  Change
          below  the  amount  which  such  person  would  have  received  if his
          employment had terminated in accordance  with Section  5(e)(i),  (ii),
          (iii) or (iv) on the day before such Plan Change;  provided,  however,
          that  benefits   otherwise   payable  hereunder  with  respect  to  an
          individual may be reduced or otherwise  modified by separate agreement
          between Eastern and such individual."

         IN WITNESS WHEREOF,  Eastern  Enterprises has caused this instrument of
amendment  to be executed by its duly  authorized  officer as of the 22nd day of
July, 1998.

                                                        EASTERN ENTERPRISES

                                                        By: /s/ J. Atwood Ives
                                                            ------------------




As approved by the Board of Trustees of Eastern Enterprises on July 22, 1998.