Exhibit 10(p)

                               PRECEDENT AGREEMENT
                              FOR FIRM SERVICES ON
                     MARITIMES & NORTHEAST PIPELINE PROJECT
                                    PHASE II



     This PRECEDENT AGREEMENT FOR FIRM SERVICES ("Precedent  Agreement") is made
and entered  into this 21 day of  September,  1996,  by and between  Maritimes &
Northeast Pipeline, L.L.C., a limited liability company formed under the laws of
the State of Delaware (referred to hereinafter as "Maritimes & Northeast-U.S."),
Maritimes & Northeast  Pipeline  Management Ltd., a corporation formed under the
Canada  Business  Corporations  Act  (referred to  hereinafter  as  "Maritimes &
Northeast-Canada"), and Valley Gas Company, a Rhode-Island corporation (referred
to  hereinafter  as  "Customer").   From  time  to  time  herein,   Maritimes  &
Northeast-U.S.  and Maritimes & Northeast-Canada  may be referred to jointly and
collectively  as  "Maritimes  &  Northeast".  Notwithstanding  such  references,
however,  Maritimes & Northeast-U.S.  and Maritimes &  Northeast-Canada  are and
shall remain  separate  legal entities for tax and other  purposes;  and to that
end, each of said entities will enter into and maintain its own separate service
agreements  with Customer and other  customers;  and the fact that both entities
are  parties  to  this  Precedent   Agreement  is  solely  for  the  purpose  of
facilitating  and  simplifying  certain  U.S. and  Canadian  regulatory  filings
described   below.   Maritimes  &  Northeast   and  Customer  may  sometimes  be
collectively referred to herein as the "Parties" and singly as a "Party".

                                   WITNESSETH:

     WHEREAS,  Maritimes & Northeast-U.S.  is a limited liability company formed
for the purpose of constructing,  owning and operating the below-described Phase
I and Phase II-U.S.  Segment of the Pipeline  Project,  the members of which are
subsidiaries  and/or affiliates of PanEnergy Corp.,  Westcoast Energy,  Inc. and
Mobil Corporation; and

     WHEREAS,  pursuant to a "Canadian Formation  Agreement" dated as of January
31,  1996  among  PanEnergy  Corp.,  Westcoast  Energy,  Inc.,  Mobil Oil Canada
Properties,  and  Eastern  Enterprises,  the  parties  to  that  agreement  have
committed  to form a Canadian  limited  partnership  to be called  "Maritimes  &
Northeast Pipeline, L.P." for the purpose of constructing,  owning and operating
the below-described  Phase II-Canadian Segment of the Pipeline Project, to which
end said parties have authorized Maritimes & Northeast Pipeline Management Ltd.,
as the General Partner of such  to-be-formed  Canadian limited  partnership,  to
enter into this  Precedent  Agreement  for the benefit of such  partnership,  it
being the intent of such parties that,  upon formation of such Canadian  limited
partnership,  Maritimes & Northeast  Pipeline  Management  Ltd.  will assign its
rights  and  obligations  under this  Precedent  Agreement  to such  partnership
(following  such  assignment  such  partnership  shall  constitute  "Maritimes &
Northeast - Canada" for purposes of this Agreement); and



     WHEREAS,  Maritimes & Northeast is developing and proposes to construct and
operate a natural gas  pipeline  project  ("Pipeline  Project")  extending  from
Country Harbour, Nova Scotia,  Canada,  through the Provinces of Nova Scotia and
New Brunswick to the Canada-United States border, and then through the states of
Maine and New Hampshire into the Commonwealth of  Massachusetts  for delivery of
natural gas from the Sable Offshore  Energy Project for various  customers which
execute agreements with them; and

     WHEREAS,  the Pipeline  Project is currently  proposed to be constructed in
two  (2)  phases:  Phase I will  extend  from a point  of  interconnection  with
Tennessee Gas Pipeline Company  ("Tennessee') near Dracut,  Massachusetts,  to a
point of interconnection  with Granite State Gas Transmission,  Inc. near Wells,
Maine; and Phase II will extend from Wells, Maine to an interconnection with the
Sable  Offshore  Energy Project gas processing  plant in Country  Harbour,  Nova
Scotia, Canada; and

     WHEREAS,  Phase I is not  contingent on Phase II and Phase II may encompass
or incorporate the facilities currently proposed for Phase I; and

     WHEREAS,  as a  result  of  an  "open  season"  conducted  by  Maritimes  &
Northeast-U.S.  from  October 23, 1995 through  November  21, 1995,  Maritimes &
Northeast-U.S.  has entered  into  certain  Precedent  Agreements  with  various
customers  for  firm  transportation  service  through  Phase I of the  Pipeline
Project;  and  Maritimes  &  Northeast-U.S.  has  filed  an  Application  for  a
Certificate  of  Public  Convenience  and  Necessity  with  the  Federal  Energy
Regulatory  Commission  ("FERC") pursuant to Section 7(c) of the Natural Gas Act
for authority to "pre-build"  Phase I of the Pipeline  Project,  to be placed in
service as early as November 1, 1997; and

     WHEREAS,  based  upon the  results  of the recent  "Request  for  Services"
offering  of  Maritimes & Northeast  which  ended  April 17,  1996,  Maritimes &
Northeast now desires to proceed with the development and authorization of Phase
II of the  Pipeline  Project,  subject to the  commitment  of Customer and other
customers  to obtain  firm  service  under  the terms of this and other  similar
Precedent  Agreements for firm service (i) through the Canadian  segment of said
Phase II of the Pipeline Project  extending from Country  Harbour,  Nova Scotia,
Canada to a point on the  Canadian-U.S.  border near St. Stephen,  New Brunswick
(the  "Phase II Canadian  Segment")  where it will  interconnect  with the Phase
II-U.S.  Segment  described below; (ii) through the U.S. Segment of the Pipeline
Project extending from a point on the Canadian-U.S.  border near Woodland, Maine
through an interconnection with Granite State Gas Transmission, Inc. near Wells,
Maine to Dracut,  Massachusetts (the "Phase II-U.S. Segment"); and (iii) through
capacity  leased by  Maritimes & Northeast  from  Tennessee  or  constructed  by
Maritimes & Northeast between Dracut and Mendon, Massachusetts; and

     WHEREAS,   Customer  desires  to  obtain  firm  service  from  Maritimes  &
Northeast-U.S.  to be made  available  from the  Phase  II-U.S.  Segment  of the
Pipeline  Project,  and from Maritimes &  Northeast-Canada  to be made available
from the Phase II-Canadian Segment of the Pipeline Project.

                                       2



     NOW,  THEREFORE,  in consideration of the premises and mutual covenants and
agreements  herein  contained,  and intending to be legally  bound,  Maritimes &
Northeast-U.S.,   Maritimes  &  Northeast-Canada   and  Customer  agree  to  the
following:

     1. This Precedent  Agreement is subject to the good faith  determination by
Maritimes  &  Northeast  not later  than  August 1,  1996,  that Phase II of the
Pipeline  Project  satisfies the economic  criteria of Maritimes & Northeast for
proceeding  with Phase II of the Pipeline  Project.  Maritimes & Northeast shall
give  Customer  written  notice under this  Paragraph 1 no later than August 15,
1996,  as to whether it will proceed  with Phase II of the  Pipeline  Project as
provided in this Precedent  Agreement or will  terminate the project;  provided,
however,   if   Maritimes  &   Northeast   extends  the  time  for  making  such
determination,  any such notice will be given within five (5) days after the end
of such extended period. In connection therewith, the Parties recognize that the
April 17, 1996 Request for Services was a starting  point for  negotiations  and
that Maritimes & Northeast  received  nominations in excess of planned capacity.
As a result,  the MDQ  provided in Paragraph  5(a) hereof may be  adjusted.  The
written  notice  provided  for in this  Paragraph 1 shall set forth the adjusted
MDQ, if any, and such adjusted MDQ shall be referenced in Appendix A hereto.  If
such  adjustment  results in a  reduction  in the MDQ  contained  in  Customer's
original  request,  Customer  may cancel this  Precedent  Agreement  due to such
reduction by written  notice to  Maritimes & Northeast  within seven (7) days of
receipt of the Maritimes and Northeast notice under this Paragraph 1.

     2.  Subject  to the  terms  and  conditions  of this  Precedent  Agreement,
Maritimes  &  Northeast  shall  proceed  with due  diligence  to obtain from all
governmental  and  regulatory  authorities  within the United  States and Canada
having  valid  jurisdiction  over  the  premises  such   authorizations   and/or
exemptions  which it determines are  necessary,  including  without  limitation,
authorizations  from the FERC (i) for Maritimes &  Northeast-U.S.  to construct,
own and operate (or cause to be  constructed  and  operated)  the Phase  II-U.S.
Segment of the Pipeline  Project and to render the services as  contemplated  in
this Precedent  Agreement and in other similar  Precedent  Agreements with other
customers,  (ii) for Maritimes &  Northeast-U.S.  to perform its  obligations as
contemplated  in  this  Precedent  Agreement  and  in  other  similar  Precedent
Agreements  with other  customers for the Phase II-U.S.  Segment of the Pipeline
Project,  and (iii) for Section 3  authorization  and a  Presidential  Permit to
site,  construct,  operate and maintain  pipeline  facilities at the U.S.-Canada
International  Boundary to interconnect the Phase II-U.S.  Segment and the Phase
II-Canadian  Segment  of the  Pipeline  Project;  and  authorizations  from  the
National Energy Board of Canada ("NEB") (i) for Maritimes & Northeast-Canada  to
construct  and  operate (or cause to be  constructed  and  operated),  the Phase
II-Canadian  Segment  of the  Pipeline  Project  and to render the  services  as
contemplated  in  this  Precedent  Agreement  and  in  other  similar  Precedent
Agreements with other customers,  and (ii) for Maritimes &  Northeast-Canada  to
perform its obligations as contemplated in this Precedent Agreement and in other
similar  Precedent  Agreements  with other  customers for the Phase  II-Canadian
Segment of the Pipeline  Project.  Maritimes &  Northeast-U.S.  and  Maritimes &
Northeast-Canada  reserve the right to file and  prosecute (or cause to be filed
and  prosecuted)  any  and  all  applications  for  such  authorizations  and/or
exemptions, any supplements and amendments thereto, and, if necessary, any court
review, in such manner as they each deem to be in their best interest.  Customer
expressly  agrees to

                                       3



support and cooperate,  and to not oppose,  obstruct or otherwise interfere with
in any manner whatsoever the efforts of Maritimes & Northeast-U.S. and Maritimes
&  Northeast-Canada   to  obtain  all   authorizations   and/or  exemptions  and
supplements  and  amendments  thereto  necessary for them to construct,  own and
operate (or to cause the construction and operation of) Phase II of the Pipeline
Project  as  contemplated  in this  Precedent  Agreement  and to  perform  their
obligations as contemplated by this Precedent Agreement.

     3. Within sixty (60) days after Customer executes this Precedent Agreement,
Customer  will advise  Maritimes & Northeast  in writing of the  facilities,  by
in-service  date,  and/or any other  authorization  or contractual  arrangements
necessary for Customer to utilize the services contemplated under this Precedent
Agreement.  Subject to the terms and  conditions  of this  Precedent  Agreement,
Customer  shall  proceed in good faith and with due diligence to obtain from all
governmental and regulatory  authorities having competent  jurisdiction over the
premises  all  authorizations   and/or  exemptions  necessary  for  Customer  to
construct and operate (or cause to be  constructed  and operated) any facilities
and to take any other  actions  necessary  to enable  Customer  to  utilize  the
services as  contemplated  in this Precedent  Agreement.  Customer  reserves the
right  to  file  and  prosecute  applications  for  such  authorizations  and/or
exemptions,  any supplements or amendments thereto, and, if necessary, any court
review,  in such  manner  as it  deems  to be in its  best  interest;  provided,
however,  Customer shall pursue such  authorizations  and/or  exemptions and any
supplements and amendments thereto in a manner designed to implement Phase II of
the Pipeline  Project in a timely manner and in no event shall Customer take any
action that would  obstruct,  interfere with or delay the receipt by Maritimes &
Northeast of the authorizations and/or exemptions and supplements and amendments
thereto contemplated  hereunder or otherwise jeopardize  implementation of Phase
II of the  Pipeline  Project.  Maritimes  & Northeast  agrees to use  reasonable
efforts to assist Customer in obtaining all authorizations and/or exemptions and
any supplements and amendments  thereto necessary for Customer to effectuate the
services  contemplated in this Precedent  Agreement.  Customer agrees to proceed
with  due  diligence  to  construct,  or cause  to be  constructed,  any and all
facilities  included  in  Customer's  written  notice to  Maritimes  & Northeast
pursuant to the first sentence of this Paragraph 3 of this Precedent  Agreement,
subject  to  the  receipt  of   necessary   authorizations   and/or   exemptions
contemplated in this Paragraph 3 of this Precedent Agreement.

     4. Pursuant to the April 17, 1996 Request for Services,  Customer requested
Maritimes & Northeast to share the request  submitted by Customer with the Sable
Offshore  Energy Project  producers on a  confidential  basis as a first step in
arranging for supplies of gas. Customer shall make its own arrangements for such
gas supplies,  either  directly or by use of a third party agent, by contracting
with one or more  suppliers  for such  supply.  Customer  shall  proceed in good
faith, either directly or by use of a third party agent, with reasonable efforts
to  negotiate  and enter into  supply  agreements  with one or more third  party
suppliers on or before December 1, 1996, on terms and conditions satisfactory to
Customer.  In  the  event  Customer  is  successful  in  contracting  with  such
supplier(s)  in the  manner  aforesaid,  Customer  shall  have the  right,  on a
one-time  basis,  on or before  August 15, 1997, to assign its rights under this
Precedent  Agreement and the related service  agreement(s) to such  supplier(s);
provided,  that such supplier(s) meets the qualifications as a shipper under the
FERC Gas Tariff of  Maritimes &  Northeast-U.S.  and the Tariff  established  by
Maritimes   &   Northeast-Canada   and  filed  with  the


                                       4



NEB, including the creditworthiness  requirements;  and provided,  further, that
following commencement of service, any subsequent assignment(s)  contemplated by
the initial assignee shall be subject to the capacity  release  requirements and
procedures set forth in such tariffs.  In the event Customer is  unsuccessful in
contracting  with such  supplier(s) in the manner aforesaid by December 1, 1996,
Customer  may  terminate  this  Precedent  Agreement as provided in Paragraph 11
hereof.

     5. (a) Customer and  Maritimes &  Northeast-U.S.  and Maritimes & Northeast
Canada, as appropriate,  agree to execute within twenty-five (25) days after the
later of the  dates  that (i) the FERC  issues  an order  authorizing  the Phase
II-U.S.  Segment  of the  Pipeline  Project,  and (ii) the NEB  issues  an order
authorizing the Phase II-Canadian  Segment of the Pipeline  Project:  (A) a firm
service  agreement  under the Rate  Schedule  MN 151,  included  in the FERC Gas
Tariff of Maritimes &  Northeast-U.S.  ("U.S.  Service  Agreement")  which shall
provide for the  transportation  of up to a Maximum  Daily  Quantity  ("MDQ") of
7,000  dekatherms  of natural gas on the Phase  II-U.S.  Segment of the Pipeline
Project;  and (B) a firm service agreement under the NEB Gas Tariff of Maritimes
& Northeast-Canada  ("Canadian  Service  Agreement") which shall provide for the
transportation of an equivalent MDQ of natural gas adjusted for final applicable
fuel usage on the Phase  II-Canadian  Segment of the Pipeline  Project.  Service
under the U.S. Service  Agreement and under the Canadian Service  Agreement will
commence as provided under  Paragraph 5(b) of this  Precedent  Agreement.  After
service commences under the respective Service  Agreement(s),  such service will
continue for a primary term of ten (10) years.

        (b) Service  under the U.S.  Service  Agreement  and under the  Canadian
Service  Agreement  will commence on the date specified in the written notice to
Customer pursuant to Paragraph 5(c) of this Precedent Agreement, which date will
be the later of.- (i) November 1, 1999;  (ii) the date all necessary  facilities
comprising the Phase II Pipeline  Project are completed and such  facilities are
available  for  active  gas  service;  or (iii)  the  date by  which  all of the
conditions  precedent set forth in Paragraph 8 of this Precedent  Agreement have
been  satisfied  or waived by the Party for  whose  benefit  the  condition  was
imposed.

        (c)  Prior to  commencement  of  service  pursuant  to the U.S.  Service
Agreement and pursuant to the Canadian Service Agreement,  Maritimes & Northeast
shall notify Customer in writing that all of the conditions  precedent set forth
in Paragraph 8 of this Precedent  Agreement  have been satisfied or waived,  and
that service under the U.S.  Service  Agreement  and under the Canadian  Service
Agreement  will  commence  on a date  certain,  which  date will not be prior to
November  1, 1999.  As of the date for  commencement  of service  under the U.S.
Service  Agreement  and  under  the  Canadian  Service  Agreement,  Maritimes  &
Northeast-U.S.  will stand  ready to provide  firm  transportation  service  for
Customer  pursuant to the terms of the U.S.  Service  Agreement  and Maritimes &
Northeast-Canada  will stand ready to provide firm service for Customer pursuant
to the terms of the Canadian Service Agreement;  and Customer will pay Maritimes
& Northeast-U.S.  for all applicable  charges  associated with the U.S. Service,
Agreement and will pay Maritimes &  Northeast-Canada  for all applicable charges
associated with the Canadian Service Agreement.

     6. Upon  execution  of this  Precedent  Agreement  and  other  satisfactory
Precedent

                                       5


Agreements  with other  customers,  Maritimes &  Northeast  will  undertake  the
preliminary   design  of  the  necessary  Phase  II  Pipeline  Project  pipeline
facilities and any other preparatory  actions necessary to complete and file the
necessary certificate  applications with the FERC for the Phase II-U.S.  Segment
facilities and with the NEB for the Phase II-Canadian Segment  facilities.  Upon
satisfaction  of the  conditions  precedent set forth in Paragraphs 8 (a)(i),  8
(a)(ii),  8 (a)(iv),  8 (a)(vi) and 8 (b)(ii) of this  Precedent  Agreement,  or
waiver of the same by Maritimes & Northeast, Maritimes & Northeast shall proceed
(subject  to  the  continuing   commitments  of  Customer  and  all  other  firm
transportation customers committed to Phase II of the Pipeline Project) with due
diligence in the necessary final design of facilities, acquisition of materials,
supplies,  properties,  rights-of-way  and any other  necessary  preparations to
implement the transportation  service contemplated by the U.S. Service Agreement
and the Canadian Service Agreement.

     7. Upon satisfaction of the conditions  precedent set forth in Paragraphs 8
(a)(i),  8  (a)(iii),  8  (a)(iv),  8 (a)(vi),  8 (b)(i) and 8 (b)(iii)  of this
Precedent Agreement, or waiver of the same by Maritimes & Northeast, Maritimes &
Northeast shall proceed  (subject to the continuing  commitments of Customer and
other  firm  transportation  customers  committed  to Phase  II of the  Pipeline
Project)  with due  diligence  to  construct  the  authorized  Phase II Pipeline
Project  pipeline  facilities  necessary  to implement  the firm  transportation
service  contemplated  in the Precedent  Agreement on or about November 1, 1999.
Notwithstanding  Maritimes & Northeast's due diligence, if Maritimes & Northeast
is unable to commence the  transportation  service for Customer as  contemplated
herein by November 1, 1999,  Maritimes & Northeast will continue to proceed with
due diligence to complete  arrangements  for such  transportation  service,  and
commence the  transportation  service for  Customer at the earliest  practicable
date  thereafter.  Maritimes  & Northeast  will  neither be liable nor will this
Precedent  Agreement  or the U.S.  Service  Agreement  or the  Canadian  Service
Agreement  be subject to  cancellation  if  Maritimes &  Northeast  is unable to
complete the  construction  of such  authorized and necessary  Phase II Pipeline
Project  pipeline  facilities  and  commence  the  firm  transportation  service
contemplated herein by November 1, 1999.

     8. The commencement of service under the U.S.  Service  Agreement and under
the Canadian  Service  Agreement and the rights and  obligations  of Maritimes &
Northeast-U.S.  and Customer under the U.S. Service Agreement and of Maritimes &
Northeast-Canada and Customer under the Canadian Service Agreement are expressly
made subject to satisfaction of the following  conditions  precedent;  provided,
however,  that any such  condition  may be waived by the Party for whose benefit
the condition is imposed:

               (a)    Conditions Precedent of Maritimes & Northeast:

                      i)    Receipt and acceptance by Maritimes & Northeast-U.S.
by March 1,  1998,  of all  necessary  certificates  and  other  authorizations,
including without limitation  authorizations from the FERC for the Phase II-U.S.
Segment and receipt and  acceptance by Maritimes &  Northeast-Canada  by July 1,
1998 of all necessary  certificates and other authorizations,  including without
limitation  authorization from the NEB for the Phase II-Canadian  Segment of the
Pipeline Project, authorizations of initial rates as contemplated in Paragraph 9
(b) of this Precedent  Agreement,  authorizations to construct and operate Phase
II of the Pipeline

                                       6


Project pipeline facilities and to provide transportation for Customer under the
U.S. Service  Agreement and under the Canadian Service Agreement as contemplated
in this  Precedent  Agreement  and  for  other  customers  under  other  Service
Agreements; and

                      ii)   Receipt and acceptance by Maritimes & Northeast by
October 1,  1998,  of a  financial  commitment  or  commitments  from  financial
institutions  acceptable  to  each of them  to  make  the  capital  expenditures
necessary  to enable  them to  construct  Phase II of the  Pipeline  Project  to
provide  transportation  for Customer under the U.S. Service Agreement and under
the Canadian Service  Agreement as contemplated in this Precedent  Agreement and
under other Service Agreements; and

                      iii)  Receipt by Maritimes & Northeast of all other
necessary  governmental  authorizations,  approvals,  permits and  exemptions to
construct  Phase  II of  the  Pipeline  Project  and  perform  the  services  as
contemplated in this Precedent  Agreement and the U.S. Service Agreement and the
Canadian Service Agreement; and

                      iv)   Receipt of an affirmative vote of the Management
Committee of Maritimes & Northeast-U.S.  and of Maritimes & Northeast-Canada  to
construct  the  authorized  Phase  II  Pipeline   Project  pipeline   facilities
subsequent to receipt of the  authorizations  contemplated in Paragraph 8 (a)(i)
of this Precedent Agreement; and

                      v)    Completion by Maritimes & Northeast of construction
of the Phase II Pipeline  Project  pipeline  facilities  required to render firm
transportation  service for Customer  pursuant to the U.S. Service Agreement and
the Canadian  Service  Agreement with Customer,  and Maritimes & Northeast being
ready and able to place such facilities into gas service; and

                      vi)   Receipt by the Sable Island Energy Project producers
of all  governmental  authorizations  and exemptions  necessary to construct the
facilities  required  to  deliver  gas to the Phase II of the  Pipeline  Project
facilities at Country Harbour,  Nova Scotia,  Canada; and vii) Completion by the
Sable Island Energy Project producers of construction of thefacilities  required
to deliver gas to the Phase II of the Pipeline  Project  pipeline  facilities at
Country Harbour, Nova Scotia, Canada.

               (b)    Conditions Precedent of the Customer:

                      i)    Receipt by Customer of the necessary governmental
authorizations,  approvals,  permits and  exemptions to construct the facilities
contained in Customer's Notice under Paragraph 3 of this Precedent Agreement for
the relevant service; and

                      ii)   Completion by Customer of construction of the
facilities  contained in Customer's  Notice under  Paragraph 3 of this Precedent
Agreement for the relevant service; and

                      iii)  Completion by Customer of necessary gas supply
arrangements

                                       7


pursuant to  Paragraph 4 of this  Precedent  Agreement  on terms and  conditions
satisfactory to Customer.

     9.  (a)  All  governmental  permits,  certificates,  exemptions  and  other
authorizations  required in Paragraph 8 (a) of this Precedent  Agreement must be
in form and substance,  satisfactory to Maritimes & Northeast,. and with respect
to the  FERC  and NEB  authorizations,  must  be  satisfactory  to all  Parties,
including mutually  satisfactory rate treatment and rate levels.  Customer shall
notify  Maritimes & Northeast  in writing not later than ten (10) days after the
issuance of each of the respective FERC and NEB orders issuing the certificates,
including any orders issued as a preliminary  determination on non-environmental
issues,  contemplated  in  Paragraph  2 of  this  Precedent  Agreement,  if such
certificate is not  satisfactory  to Customer.  All  governmental  approvals and
exemptions   required  by  this   Precedent   Agreement  must  be  duly  granted
respectively  by the FERC and the  NEB,  and/or  other  governmental  agency  or
authority having valid  jurisdiction,  and must be final and nonappealable;  but
with  respect to the  authorization  from the FERC and the NEB,  the Parties may
waive  the  condition   that  any  such  approval  or  exemption  be  final  and
nonappealable.

         (b) In  connection  with the Phase II  Pipeline  Project  initial  rate
design  methodology,  Customer  expressly  agrees:  (i) with  this  rate  design
methodology;  (ii) to support  such rate  design  methodology;  and (iii) to pay
Maritimes & Northeast-U.S. and Maritimes & Northeast-Canada,  as applicable, the
initial rates as contemplated herein.

     10. The  Parties  expressly  agree  that the  execution  of this  Precedent
Agreement and the  performance of the  transportation  services  contemplated in
this Precedent  Agreement are without prejudice to any rights or obligations the
Parties have to each other under separate and distinct agreements.

     11. If the conditions  precedent set forth in Paragraph 8 (a)(i), 8 (a)(ii)
and 8 (b)(iii) of this  Precedent  Agreement have not been fully  satisfied,  or
waived by the Party  for  whose  benefit  such  condition  was  imposed,  by the
applicable  dates specified  therein,  then, any Party may thereafter  terminate
this Precedent  Agreement by giving ninety (90) days prior written notice of its
intention to  terminate  to the  non-terminating  Party;  but if the  conditions
precedent  are  satisfied or waived  within said ninety (90) day notice  period,
then termination will not be effective.  In addition,  and notwithstanding other
provisions hereof,  Maritimes & Northeast may terminate this Precedent Agreement
at any time upon  fifteen (15) days' prior  written  notice given to Customer if
termination by customers,  other than by reason of commencement  of service,  of
other precedent  agreements and service  agreements for service from Maritimes &
Northeast renders the Pipeline Project uneconomic,  as determined by Maritimes &
Northeast.

     12. If this Precedent  Agreement is not terminated pursuant to Paragraph 11
hereof, then this Precedent Agreement will terminate by its express terms on the
date of  commencement  of  service  under  the U.S.  Service  Agreement  and the
Canadian  Service  Agreement   referenced  in  Paragraph  5  of  this  Precedent
Agreement,  and thereafter the Parties'  rights and  obligations  related to the
transportation  transactions contemplated herein shall be determined pursuant to
the terms

                                       8


and conditions of the U.S. Service  Agreement and the Canadian Service Agreement
and the terms and  conditions  of the FERC and NEB Rate  Schedules  specified in
Paragraph 5 (a) hereof,  as effective  from time to time,  and the General Terms
and Conditions of the FERC and NEB Gas Tariffs, as effective from time to time.

     13. This  Precedent  Agreement  may not be  modified or amended  unless the
Parties execute written agreements to that effect.

     14. Any company which succeeds by purchase,  merger,  or  consolidation  of
title  to  the  properties,   substantially  as  an  entirety,  of  Maritimes  &
Northeast-U.S.,  Maritimes & Northeast-Canada or the Customer,  will be entitled
to the rights and will be subject to the obligations of its predecessor in title
under this  Precedent  Agreement.  Otherwise,  except as provided in Paragraph 4
hereof,  assignment  of  this  Precedent  Agreement  or  any of  the  rights  or
obligations  hereunder  may not be made unless the written  consent of the other
Party is first  obtained;  provided,  however,  upon  formation  of the Canadian
limited  partnership  referred to in the recitals to this  Precedent  Agreement,
Maritimes & Northeast-Canada may assign its rights and obligations  hereunder to
such  partnership  without any need to obtain the  written  consent of any other
Party.  No Party  will be  relieved,  by virtue of any such  assignment,  of its
obligations and liabilities hereunder without the express written consent of the
other Party.

     15. (a) Any dispute arising out of or relating to this Precedent Agreement,
whether in contract,  tort,  under  statutory  law, or otherwise,  and including
without  limitation  any  dispute  arising  from an  assertion  of the rights of
Maritime  &  Northeast  under  Paragraph  9,  which  can not be  resolved  after
discussion  between  the  Parties  or  by  voluntary  non-binding  mediation  in
conformity with applicable  procedures of the Texas Alternate Dispute Resolution
Procedures Act, Texas Civil Practices and Remedies Code, Title 7, Ch. 154, shall
be submitted to binding arbitration.  Either Party may commence such arbitration
proceedings by serving written notice on the other. The notice shall contain the
name of one  arbitrator  and a  statement  of the matter in  dispute.  The Party
receiving such notice shall have fifteen (15) days to respond in writing, naming
a second  arbitrator and designating any other matter for  arbitration.  The two
named arbitrators shall select a third arbitrator.  If the two named arbitrators
fail to select a third  arbitrator  within  fifteen  (15) days  after the second
arbitrator was named,  the third arbitrator shall be selected in accordance with
the commercial  arbitration rules of the American Arbitration  Association.  All
arbitrators  shall be qualified by education  or  experience  to decide  matters
relating to the questions in dispute.  In addition,  the arbitrators  shall have
professional  experience  in the natural gas industry and shall not be evidently
partial under the standards of section 10(b) of the Federal  Arbitration  Act, 9
U.S.C.  Section  10(b).  The third  arbitrator  shall  not have been  previously
employed  by either  Party.  The  arbitration  shall be held at a location to be
mutually agreed to, and failing agreement,  in Houston, Texas. At any time after
the naming of the second arbitrator,  the Parties may engage in discovery.  Each
Party shall be permitted to serve on the other Party  requests for production of
documents  relevant to any dispute which is the subject of the  arbitration  and
one set of  interrogatories  addressing any issues relevant to any dispute which
is the subject of the arbitration,  which requests and interrogatories  shall be
answered or  otherwise  responded  to within 20 days after  service.  Each Party
shall also have the right to take four depositions.  Additional discovery may be
ordered by a majority of the arbitrators  upon application by one or both of the
Parties on a showing of good cause. Any discovery  disputes shall be resolved by
the decision of a

                                       9


majority of the arbitrators.

         (b) After presentation of evidence has been concluded, each party shall
submit  to the  arbitrators  a final  offer of its  proposed  resolution  of the
dispute.  No responses to a final offer may be submitted.  The arbitrators shall
approve the final offer of one Party, without  modification,  and reject that of
the other.  In  considering  the  evidence  and  deciding  which  final offer to
approve,  the  arbitrators  shall be guided  by the  criteria  described  in the
appropriate section of this Precedent Agreement.

         (c) The decision of the arbitrators  shall be rendered on or before 120
days following the notice of  arbitration.  The  arbitrators'  decision shall be
deemed to be part of this  Precedent  Agreement  and  incorporated  by reference
herein.
         (d)  If at  any  time  prior  to  rendition  of  the  decision  of  the
arbitrators,  an  arbitrator  named  by one of the  Parties  becomes  unable  or
unwilling  to  serve,  the Party  that  named  that  arbitrator  shall  select a
replacement arbitrator within 10 days after receiving notice of the arbitrator's
inability or  unwillingness  to serve.  If at any time prior to rendition of the
decision of the arbitrators the third arbitrator  becomes unable or unwilling to
serve, a replacement  arbitrator shall be selected utilizing the same procedures
for selection of the third  arbitrator  set forth above,  except that the 15 day
period for selection of the third  arbitrator shall run from the date both named
arbitrators receive notice of the third arbitrator's  inability or unwillingness
to serve.  The naming or selection  of a  replacement  arbitrator  shall have no
effect on the  conduct of the  proceedings  unless the  arbitration  hearing has
already  commenced,  in which  case the  hearing  will be  recommenced  as if no
portion of the hearing had been conducted.

         (e) Each Party  shall pay its own costs  incurred  in  connection  with
arbitration  Proceedings,  except  for  the  fees  and  expenses  of  the  third
arbitrator,  which shall be equally divided between the Parties. The decision of
the arbitrators shall be final, conclusive and binding on both Parties. Judgment
upon the award  rendered by the  arbitrators  may be entered in any court having
jurisdiction  thereof.  In the event that it is necessary to enforce such award,
all costs of enforcement,  including reasonable attorney's fees (for in-house or
outside  counsel)  shall be  payable  by the Party  against  whom such  award is
enforced.

         (f) The  substantive  law chosen in Paragraph 17, as well as applicable
federal  law,  will  apply  to  the  proceedings  in  arbitration.  The  Federal
Arbitration Act, 9 U.S.C. Section 1, et seq., shall govern the enforceability of
this  paragraph  15,  and to the  extent not  inconsistent  with the  provisions
hereof,  it shall also govern the  procedures  to apply in  arbitration  and the
enforcement,  vacation, or modification of any award. The Parties stipulate that
this Precedent  Agreement evidences a transaction  "involving  commerce" as that
phrase is used in 9 U.S. C. Section 2.

     16. The  recitals  and  representations  appearing  first  above are hereby
incorporated in and made a part of this Precedent Agreement.

     17. The Precedent Agreement shall be governed by and construed, interpreted
and  performed  in  accordance  with the laws

                                       10


of the State of Texas,  without  recourse to any laws  governing the conflict of
laws.

     18.  Except as herein  otherwise  provided,  any notice,  request,  demand,
statement, or bill provided for in this Precedent Agreement, or any notice which
either  Party  desires  to give to the  other,  must be in  writing  and will be
considered  duly  delivered  when mailed by registered or certified  mail to the
other Party's Post Office address set forth below:

          Maritimes & Northeast-U.S.:             Attn:
                                                  5400 Westheimer Court
                                                  Houston, Texas 77056

          Maritimes & Northeast-Canada:           Attn:
                                                  50 Keil Drive North
                                                  Chatham, Ontario N7M 5Ml

          Customer:                               1595 Mendon Road
                                                  Cumberland, RI 02864

or at such other address as either Party  designates by written notice.  Routine
communications,  including monthly statements, will be considered duly delivered
when mailed by either  registered,  certified,  or ordinary  mail.  For purposes
hereof,  any notice  required to be given by  Customer to  Maritimes & Northeast
shall be  delivered  to each of  Maritimes  &  Northeast-U.S.  and  Maritimes  &
Northeast-Canada.

                                       11


     IN WITNESS WHEREOF, the Parties hereto have caused this Precedent Agreement
to be duly executed in several counterparts by their duly authorized officers as
of the day and year first above written.

                                    MARITIMES & NORTHEAST PIPELINE, L.L.C.


                                    BY:  ______________________________________

                                    TITLE:_____________________________________
                                          M & N Management Company
                                          Managing Member


                                    MARITIMES & NORTHEAST PIPELINE
                                    MANAGE LTD.

                                    BY: _______________________________________

                                    TITLE: ____________________________________ 


                                    VALLEY GAS COMPANY

                                    BY: _______________________________________

                                    TITLE: ____________________________________


Signature  page  for  Precedent  Agreement  dated  September  21,  1996  between
Maritimes  &  Northeast  Pipeline,   L.L.C.,   Maritimes  &  Northeast  Pipeline
Management Ltd. and Valley Gas Company.


jsg\01752agt-96

                                       12




                                   APPENDIX A

                                       TO

                          PRECEDENT AGREEMENT FOR FIRM
                            OR INTERRUPTIBLE SERVICE
                                FROM PHASE II OF
                     MARITIMES & NORTHEAST PIPELINE, L.L.C.



         MDQ Contained in                                 Adjusted
   Customer's Original Request                               MDQ
              MMBtu                                         MMBtu



_______________________________                     _______________________















[This Appendix A may be developed in the event Maritimes & Northeast Pipeline is
required  to  adjust  Customer's  MDQ  as  contemplated  in  Paragraph  1 of the
Precedent Agreement.]


rgr\maritime\appendxa.pre

                                       13