Exhibit 99.1

Management's Discussion and Analysis of Financial Condition and Results of
Operations:

         The  following  commentary  should  be read  in  conjunction  with  the
Consolidated   Financial   Statements  and   accompanying   Notes  to  Financial
Statements.

         Eastern's  acquisition  of Essex  County Gas Company  ("Essex  Gas") on
September  30,  1998  has been  accounted  for as a  pooling  of  interests,  as
discussed in Note 2 of Notes to  Financial  Statements.  Accordingly,  Eastern's
financial  statements  presented for include the financial  information of Essex
Gas for all  periods  presented.  Additionally  Essex  Gas'  results  have  been
combined  with  Boston  Gas'  results  and are  presented  herein as natural gas
distribution   operations.   Midland   Enterprises   is   reported   as   marine
transportation.   As  Essex  Gas'  contribution  to  consolidated  revenues  and
operating earnings for 1995 through 1997 was less than 6% and 8%,  respectively,
it did not have a material impact on the comparative analyses presented below.
Accordingly the discussion of natural gas distribution focuses on the revenues
and operating earnings of Boston Gas.

         In June 1998,  The U.S.  Supreme Court held the Coal  Industry  Retiree
Health  Benefit  of 1992  ("Coal  Act") to be  unconstitutional  as  applied  to
Eastern.  As discussed in Note 13, the reversal of Coal Act provisions  resulted
in an extraordinary  gain of $74.5 million pre-tax,  $48.4 million net, or $2.13
per share in the second quarter of 1998.

         In  October  1998  Eastern  signed a  definitive  agreement  to acquire
Colonial Gas Company  ("Colonial  Gas") for $37.50 in Eastern stock and cash, as
discussed in Note 3. The cash consideration has been fixed at $150.0 million and
will be financed  from  currently  available  resources.  Colonial  Gas is a gas
distribution  utility  serving  about  150,000  customers in and around  Lowell,
Massachusetts  and on Cape Cod.  The merger is  expected  to close in  mid-1999,
subject to a number of  conditions,  including  approval by  regulators  and the
shareholders of both Eastern and Colonial Gas.


1997 COMPARED TO 1996

Overview
         The Company reported net earnings of $55.9 million, or $2.49 per share,
in 1997, compared to net earnings of $64.5 million, or $2.88 per share, in 1996.
(Per share  figures are presented on a diluted  basis,  as described in Note 1.)
Excluding  non-recurring  items  and  Eastern's  share  of  AllEnergy's  losses,
earnings and earnings per share declined  approximately 14% to $55.4 million, or
$2.47 per share, in 1997 versus $64.1 million, or $2.86 per share, in 1996.


                                             1997                 1996                 Change
                                             ----                 ----                 ------
(In millions)
                                                                               
    Revenues:
     Natural gas distribution               $  754.5            $  755.4                 (0.1)%
     Marine transportation                     269.2               301.9                (10.8)%
                                           ---------            ---------
       Total                                $1,023.7            $1,057.3                 (3.2)%
                                            ========            ========

                                       4




         The  decrease  in  consolidated  revenues  from 1996 to 1997  primarily
reflects  decreased  demand and lower rates at marine  transportation  and lower
average  usage  and  the   migration  of  customers   from  firm  gas  sales  to
transportation-only  service,  partially  offset by sales to new  customers,  at
Boston Gas.


                                                      1997                1996                Change
                                                      ----                ----                ------
(In millions)
                                                                                      

    Operating earnings:
     Natural gas distribution                          $87.8              $ 77.3                13.6%
     Marine transportation                              34.6                58.4               (40.8)%
     Headquarters                                       (7.1)               (5.5)              (29.1)%
                                                      ------              ------
       Total                                          $115.3              $130.2               (11.4)%
                                                      ======              ======



         The decrease in operating earnings from 1996 to 1997 primarily reflects
the  impact  of  decreased  revenues  and poor  operating  conditions  at marine
transportation, partially offset by higher rates and lower operating expenses at
Boston Gas.  Other  income  primarily  reflects  losses of $5.5 million and $3.1
million  in  1997  and  1996,  respectively,  representing  Eastern's  share  of
AllEnergy's  operating  losses.  Eastern  sold its  investment  in  AllEnergy in
December  1997.  The effective tax rate in 1997 was 33%, which was 4% lower than
in 1996,  primarily  because of adjustments  relating to prior year returns,  as
described in Note 11.

Natural gas distribution
         Revenues in 1997 were about the same as 1996,  primarily  because lower
average   customer  usage,  the  migration  of  customers  from  firm  sales  to
transportation-only  service and the impact of comparatively warmer weather were
offset by sales to new  customers  and the full year  impact of Boston Gas' 1996
rate  increase.  Weather for 1997 was 3% colder than normal,  but 2% warmer than
1996.

         Operating  earnings  increased  13.6% from 1996,  primarily  reflecting
growth in throughput,  lower  operating  expenses,  higher rates and Boston Gas'
$2.0 million gain on the settlement of pension obligations,  partially offset by
the margin impact of lower average usage and warmer  weather and a higher charge
for  depreciation,  reflecting  continued  investment in system  replacement and
expansion.  While 1997  weather  was only 2% warmer  than 1996,  weather for the
first quarter of 1997, when natural gas distribution operations generate most of
their revenues and earnings, was 9% warmer than the prior year. The migration of
customers  from firm sales to  transportation-only  service has no impact on the
earnings of natural gas distribution operations, which earn all of their margins
on the local distribution of gas and none on the resale of the commodity itself.
During the fourth quarter of 1997 Boston Gas recorded  non-recurring revenues of
approximately  $8.9 million  related to a change ordered by the 1996 rate ruling
regarding the recovery  mechanism for the portion of bad debt expense associated
with gas costs. This income was largely offset by a charge of approximately $8.7
million  related to Boston Gas'  decision to exit the gas  appliance  repair and
service business.


Marine transportation
         Revenues  in 1997  decreased  10.8%  primarily  because of weak  export
demand  for coal and grain,  lower  contractual  requirements  for  utility  and
industrial coal customers and fewer barges. Weak demand depressed spot rates for
nearly  all  commodities,   and  traffic   patterns  were  disrupted,   reducing
operational  efficiency.  Operating  conditions  in 1997 were  worse  than those
experienced in 1996, as navigation was negatively impacted by record flooding on
                                       5


the Ohio River early in the year,  and later by long traffic  delays  related to
low water and repairs to various key locks  throughout  the river system.  These
uncontrollable  events  resulted  in higher  operating  costs  and  lower  fleet
productivity  than  in  1996.  As  a  result  of  the  weaker  markets,   marine
transportation  slowed its fleet replacement  program and did not renew expiring
charters of outside barges.  These decisions,  in addition to production  delays
which  postponed the delivery of new barges expected in the latter part of 1997,
reduced the size of marine transportation's barge fleet.

         Tonnage and ton miles  decreased 13% and 8%,  respectively,  reflecting
the weak market and operational issues discussed  previously,  although a change
in business mix and customer  sourcing resulted in 5% longer average hauls. Coal
tonnage  and ton miles  decreased  17% and 14%,  respectively,  from the  record
levels of 1996. Domestic coal volume, primarily for electric utilities, declined
due to the non-renewal of several multi-year contracts,  unplanned plant outages
and milder  temperatures.  Export coal demand weakened as the strong U.S. dollar
effectively   raised  the  prices  of  domestic  supplies  higher  than  foreign
competitors.   Despite  an  ample  grain  harvest,   the  anticipated  surge  in
transportation volume and pricing for grain exports was short-lived,  as much of
the harvest was put in storage due to reduced  demand and the relative  strength
of the U.S. dollar.

         Ongoing  improvement  programs  to lower  vessel  operating  costs  and
administrative  expenses  partially  offset the higher operating costs discussed
above. Operating results at marine  transportation's  terminals were also lower,
reflecting  the  reduced  demand  for coal  transportation.  As a result  of the
adverse  market and  operational  issues  discussed  above,  operating  earnings
decreased by 40.8% in 1997.



1996 COMPARED TO 1995

                                             1996                 1995               Change
                                             ----                 ----               ------
(In millions)
                                                                               
 
    Revenues:
     Natural gas distribution              $  755.4               $698.1                8.2%
     Marine transportation                    301.9                296.4                1.9%
                                           --------               ------
       Total                               $1,057.3               $994.5                6.3%
                                           ========               ======



         The  increase  in  consolidated  revenues  from 1995 to 1996  primarily
reflects  higher  customer  usage,  colder  weather,  and increased sales to new
customers for natural gas  distribution  and increased demand for coal and other
commodities at marine transportation.


                                                      1996                1995               Change
                                                      ----                ----               ------
(In millions)
                                                                                       

    Operating earnings:
     Natural gas distribution                         $ 77.3              $ 69.3                11.5%
     Marine transportation                              58.4                57.8                 1.0%
     Headquarters                                       (5.5)               (5.8)                5.2%
                                                      ------              ------
       Total                                          $130.2              $121.3                 7.3%
                                                      ======              ======

                                       6




         The increase in operating earnings from 1995 to 1996 primarily reflects
the gross  margin  impact of  natural  gas  distribution  operations'  increased
revenues,  as described above.  Other income in 1996 includes increased interest
income on higher cash balances and decreased interest expense,  reflecting lower
average rates  principally due to the refinancing of $60.0 million of Boston Gas
debentures in December 1995 and lower balances of short term obligations. Partly
offsetting  were  the  absence  of a $20.6  million  gain on the sale in 1995 of
Eastern's U.S. Filter investment and a $15.0 million provision for environmental
expenses, as described in Notes 10 and 12. In 1996, other income includes a loss
of $3.1 million,  representing Eastern's share of AllEnergy's operating results.
The effective tax rate in 1996 was 8% higher than in 1995,  principally  because
the gain on the 1995 sale of the U.S. Filter investment was offset by a tax loss
realized on the sale of WaterPro Supplies Corp.,  which had been written down in
1993.

Natural gas distribution
         Revenues in 1996  increased by 8.2% due  principally  to higher average
customer usage,  the impact of colder weather,  increased sales to new customers
and increased  non-firm  sales.  The  migration of firm sales to  transportation
service was  partially  offsetting.  Weather for 1996 was 5% colder than normal.
Weather for 1995 was near normal.

         Operating earnings increased 11.5% from 1995,  primarily reflecting the
margin  impact  of  increased  revenues.  Benefits  from  ongoing  reengineering
programs and the absence of severance costs and lower  consulting  expenses also
contributed  to the increase in operating  earnings.  Wage  increases and higher
charges for depreciation were partially offsetting.

Marine transportation
         Revenues   and   operating   earnings   increased  by  1.9%  and  1.0%,
respectively,  in 1996 over 1995,  primarily  reflecting  the  continued  strong
demand for coal and other dry cargo  commodities  and  favorable  rates.  Severe
icing and flooding during the first quarter of 1996 and generally more difficult
operating  conditions  later in the year resulted in higher  operating costs and
lower fleet productivity than in 1995.

         Tonnage and ton miles  decreased  1% and 2%,  respectively,  reflecting
shorter  average hauls due to reduced  foreign demand for coal and a shortage of
grain supplies.  Coal tonnage and ton miles  increased 1% and 3%,  respectively,
reflecting  significantly  increased shipments of domestic spot coal, while coal
shipments  under  multi-year   contracts  for  utilities  declined  due  to  the
non-renewal of several contracts.  Non-coal tonnage and ton miles declined 6% as
a result of weaker  barge  demand  for grain  exports  on the lower  Mississippi
River.

         Ongoing programs to increase fleet  productivity were offset by adverse
operating  conditions and traffic pattern  inefficiencies  caused by the reduced
export  tonnage.  Fuel costs  increased  in 1996 due to rising  fuel prices that
averaged 20% above 1995 levels.


YEAR 2000 ISSUES

The following  discussion reflects year 2000 status as of September 1998, except
for information about the cost of year 2000 remeditation.

                                       7



State of Readiness
         Eastern has assessed the impact of year 2000 issues with respect to its
information  technology  ("IT") systems and embedded chip systems as well as the
Company's exposure to significant third party risks. In such regard, Eastern has
initiated and completed  substantial  portions of its plans to replace or modify
existing  systems and technology and to assure that major customers and critical
vendors are also  addressing  these  issues.  Year 2000 issues for Essex Gas are
being addressed by integration of its systems with those of Boston Gas, which is
scheduled for completion by the first quarter of 1999.

         With respect to IT systems, Boston Gas has tested and certified four of
its eleven "mission critical"  application  systems. A fifth system is scheduled
for certification in the fourth quarter of 1998 and replacement of the remaining
six systems is in process and scheduled to be completed by the second quarter of
1999.  All "less than critical"  applications  are scheduled to be tested and/or
upgraded by the second quarter of 1999.  Conversion and testing of all mainframe
hardware and software has been completed. Replacements are in process for client
server,  data/voice  communications,  e-mail and desktop  hardware and software,
with completion scheduled by the second quarter of 1999.

         With  respect to embedded  chip  systems,  Boston Gas has  completed an
inventory and expects to complete its  assessment  and action plan in the fourth
quarter of 1998.  All  remediation,  conversion  and  testing is  scheduled  for
completion by the second quarter of 1999.

         Boston  Gas has  identified  material  third  party  relationships  and
expects to complete its detailed  survey and assessment of third party readiness
by the fourth  quarter of 1998.  Selected  testing  and  implementation  of risk
mitigation  strategies for high risk vendors are scheduled for completion by the
second quarter of 1999.

         Marine  transportation  has  modified  and tested  all  mainframe-based
programs and systems,  which were  operating on a new  mainframe as of September
30, 1998. All non-mainframe (server) based systems have been tested and all have
been modified except for Accounts Receivable,  which is scheduled for completion
in the second  quarter  of 1999.  Marine  transportation  expects  its  personal
computers to be 100% compliant by mid-1999.

         With respect to embedded chip systems,  marine  transportation's  major
operating  assets and  sub-systems  were reviewed for embedded chip  technology.
Based on this review and actions taken,  management believes year 2000 issues in
regards to internal chip technology will not impair its operating assets.

         Marine  transportation  has  assessed  third party risk with respect to
critical suppliers,  services and customers.  Marine  transportation is actively
seeking written  confirmation of third party readiness.  If such readiness is in
doubt,  marine  transportation  expects to locate backup providers by the second
quarter of 1999.

         Notwithstanding  Eastern's efforts with third parties,  there can be no
assurance that the systems of third parties on which Eastern's systems rely will
be timely  converted  or that any such failure to convert by a third party would
not have an adverse effect on Eastern's operations.

                                       8






Cost of year 2000 remediation
         Natural gas distribution and marine  transportation  expect the cost of
their  year  2000   compliance  to  approximate  $13  million  and  $2  million,
respectively, as detailed in the following chart:


                                                                Cost through December,     Expected subsequent cost
     (In millions)                                                       1997
- ------------------------------------------------------------- --------------------------- ---------------------------
                                                                                               
Natural gas distribution - capital                                       $4.2                        $4.2
    - expense                                                            $1.6                        $3.0
Marine transportation - capital (includes mainframe)                     $0.9                        $0.0
    - expense                                                            $0.3                        $0.8



Risks of year 2000 issues
         Boston Gas has assessed the most reasonably likely worst case year 2000
scenario.  Given its  efforts to minimize  the risk of year 2000  failure by its
internal  systems  and its  distribution  network  control  systems,  Boston Gas
believes the worst case scenario  would occur if its primary  telecommunications
vendor and/or its electric  supplier  should  experience an outage due to a year
2000 failure.  An outage would  require  Boston Gas to enact  disaster  recovery
measures to enable the  continuation of service to its customers.  Such measures
would include utilization of Boston Gas' co-generation capability for electrical
power, relocation of the customer inquiry function and use of a wireless network
for communications.

         Marine  transportation  believes its worst case scenario  would involve
failures by the Army Corps of Engineers, which operates the various lock and dam
systems on the inland  waterways,  or by rail services,  which are essential for
bringing  commodities  to the  rivers  for  transit  in marine  transportation's
barges.  These failures  could  significantly  disrupt  marine  transportation's
operations.  The risk of failure by communications  systems or fuel suppliers is
expected to be mitigated by the availability of alternate suppliers.

Contingency plans
         Natural gas distribution and marine  transportation  are in the process
of developing contingency plans and anticipate having such plans in place by the
second quarter of 1999.


FORWARD-LOOKING INFORMATION:

         This report and other company  statements and statements issued or made
from  time to  time  contain  certain  "forward-looking  statements"  concerning
projected future  financial  performance,  expected plans or future  operations.
Eastern cautions that actual results and developments may differ materially from
such projections or expectations.

         Investors should be aware of important  factors that could cause actual
results  to  differ   materially   from  the   forward-looking   projections  or
expectations.  These factors include,  but are not limited to: the effect of the
Colonial Gas merger and other  strategic  initiatives on earnings and cash flow,
difficulties  encountered  in  integrating  Eastern's  gas  utility  operations,
temperatures above or below normal in eastern  Massachusetts,  changes in market
conditions for barge transportation, adverse weather and operating conditions on
the inland  waterways,  uncertainties  regarding  the  start-up  of  ServicEdge,
including  expense  levels and customer  acceptance,  the timetable and cost for
                                       9



completion of Eastern's year 2000 plans,  the impact of third parties' year 2000
issues,  changes in economic conditions,  including interest rates and the value
of the dollar  versus  other  currencies,  regulatory  and court  decisions  and
developments  with  respect  to  Eastern's  previously-disclosed   environmental
liabilities.  Most of these factors are difficult to predict  accurately and are
generally beyond Eastern's control.


LIQUIDITY AND CAPITAL RESOURCES

         Management  believes  that  projected  cash  flow from  operations,  in
combination with currently available resources,  is more than sufficient to meet
Eastern's 1998 capital expenditure and working capital  requirements,  potential
funding of its environmental  liabilities,  normal debt repayments,  anticipated
dividends to shareholders and the planned acquisition of Colonial Gas.

         In addition to cash and  marketable  investments  of $175.7  million at
December 31, 1997, Eastern maintains  availability of borrowings of $119 million
under long-term revolving credit agreements plus uncommitted lines, all of which
are available for general corporate  purposes.  At December 31, 1997, there were
borrowings of $3.3 million outstanding under these facilities.

         To meet working capital  requirements which reflect the seasonal nature
of its business,  natural  gas  distribution  had outstanding  of $43.1  million
of short-term borrowings at December 31, 1997, a
decrease of $25.9 million from the prior year, primarily reflecting the issuance
of $10.0 million of long term debt at Essex Gas and lower balances for deferred
gas costs. In addition,  natural gas  distribution  maintains bank credit
agreements which  support the issuance of up to $80 million of gas inventory
financing to fund  its  inventory  of  gas  supplies.  At  December  31,  1997,
natural  gas distribution had outstanding  $59.3 million of gas inventory
financing for this purpose.

         Consolidated capital  expenditures for 1998 are budgeted at
approximately $110 million,  with about 55% at natural gas distribution and the
balance at marine transportation.

         Eastern's capital structure is depicted in the chart below.  Subject to
the effects of strategic  initiatives  which  Eastern might  undertake,  Eastern
expects to continue  its policy of  capitalizing  natural gas  distribution  and
marine  transportation  with approximately equal amounts of equity and long-term
debt.  Boston Gas and midland  currently  maintain  "A"  ratings  with the major
rating agencies.  The chart below shows general improvement in interest coverage
at Boston Gas, but a decrease in coverage for marine  transportation  during the
current  year,  reflecting  the  weakness  of  transportation  markets  and poor
operating conditions in 1997.

[BAR CHART]

Capital Structure
($ in millions)

                                   Debt      Equity   Total Capital
                              1993     352     391        743
                              1994     388     403        791
                              1995     379     426        805
                              1996     368     461        829
                              1997     372     484        856

                                       10




[BAR CHART]
Interest Coverage

                                93      94      95     96      97
                                ------------------------------------
Boston Gas                     4.3     4.8     4.8     6.2    6.8
Marine transportation          4.2     4.0     5.7     5.8    4.5

(pre-tax earnings plus depreciation, amortization
and interest expense divided by interest expense)

OTHER MATTERS

         In December 1997, Eastern sold its 50% interest in AllEnergy Marketing
Company, L.L.C. for $5.4 million.

         On May 16, 1997 Boston Gas received a decision  from the  Massachusetts
Department of  Telecommunications  and Energy (the  "Department"),  formerly the
Department  of Public  Utilities,  concerning  its request for  reconsideration,
clarification  and  recalculation of the Department's  November 1996 rate order.
The Department  granted  Boston Gas an additional  $1.9 million rate increase (a
$6.3 million  increase  was granted in the November  1996 order) and reduced the
productivity offset portion of the performance-based rate formula established in
its November 1996 order by 50 basis points, from 2.00% to 1.50%. Compared to the
Department's  original  decision,  these  changes  will add  approximately  $3.5
million to projected revenue in 1998,  increasing to about $8.0 million by 2002,
the last year of the  performance-based  rate plan. On June 5, 1997,  Boston Gas
filed a notice of appeal of the Department's orders to the Massachusetts Supreme
Judicial Court. Boston Gas expects the appeal to be heard some time in 1999.

         As a result of its ten year  rate  freeze,  Essex Gas will  discontinue
application  of SFAS No. 71,  "Accounting  for the  Effects of Certain  Types of
Regulation," as described in Note 2.

         Eastern is aware of certain  non-utility sites,  associated with former
operations,   for  which  it  may  have  or  share   environmental   remediation
responsibility  or  ongoing  maintenance.  Eastern  has  accrued  a  reserve  of
approximately  $25 million at December 31, 1997,  to cover the  remediation  and
maintenance  costs of these sites,  the  principal of which is a former coal tar
processing  facility in Everett,  Massachusetts,  as discussed in Note 12. While
Eastern  has  provided  reserves  to  cover  the  estimated  probable  costs  of
remediation  and maintenance  for  environmental  sites based on the information
available at the present time,  the extent of Eastern's  potential  liability at
such sites is not yet determined.

         Eastern's  natural  gas  distribution   operations,   like  many  other
companies in the natural gas industry,  are parties to governmental  proceedings
requiring  investigation  and possible  remediation of former  manufactured  gas
plant ("MGP") sites.  Boston Gas and Essex Gas may have or share  responsibility
under  applicable  environmental  law for the  remediation of 18 such sites,  as
described in Note 12. A subsidiary of New England  Electric  System ("NEES") has
assumed  responsibility for remediating 10 of these sites,  subject to a limited
contribution from Boston Gas. Boston Gas and Essex Gas have recorded liabilities
of  $19.5  million,  which  represent  their  best  estimate  at  this  time  of
remediation  costs,  which may reasonably be estimated to range from $17 million


                                       11



to $31 million.  However,  there can be no assurance  that actual costs will not
vary  considerably  from these estimates.  Factors that may bear on actual costs
differing  from  estimates  include,   without  limit,   changes  in  regulatory
standards,  changes in remediation  technologies  and practices and the type and
extent of contaminants discovered at the sites.

         Boston Gas and Essex Gas are aware of 26 other  former MGP sites within
their service territories. The NEES subsidiary has provided full indemnification
to Boston Gas with  respect  to eight of these  sites.  At this  time,  there is
substantial  uncertainty  as to  whether  Boston  Gas or Essex Gas have or share
responsibility   for  remediating  any  of  these  other  sites.  No  notice  of
responsibility has been issued to Boston Gas or Essex Gas for any of these sites
from any governmental environmental authority.

         By a rate order issued on May 25,  1990,  the  Department  approved the
recovery of all prudently incurred  environmental response costs associated with
former MGP sites  over  separate,  seven-year  amortization  periods,  without a
return  on the  unamortized  balance.  Eastern's  natural  gas  operations  have
recognized  an insurance  receivable  of $3.4  million,  reflecting a negotiated
settlement with an insurance carrier for environmental expense indemnity,  and a
regulatory  asset of $16.1 million,  representing  the expected rate recovery of
environmental  remediation  costs,  net of  the  insurance  settlement.  Eastern
currently believes, in light of the indemnity agreement with the NEES subsidiary
and the Department  rate order on  environmental  cost recovery,  that it is not
probable  that such costs will  materially  affect its  financial  condition  or
results of operations.

                                       12