SPLIT-DOLLAR LIFE INSURANCE AGREEMENT


         This  Agreement  is entered into as of February 1, 1996  by and between
Southwestern  Energy Company (the  "Company") and Stanley D. Green  ("Employee")
inreference to the following facts:

                  1. Employee is a valued employee of the Company.

                  2. The Company has  simultaneously  with the execution of this
Agreement caused Pacific Mutual Life Insurance Company (the "Insurance Company")
to issue and deliver to Employee policy number  1A23067760 (the "Policy") on the
life of Employee.  The first  annual  premium has been paid by the Company as of
the date of this Agreement.

                  3.  For  purposes  of  this  Agreement,  the  Company  and any
subsidiary of the Company shall  constitute the "Employer." For this purpose,  a
subsidiary  is  a  corporation  which  is a  member  of a  controlled  group  of
corporations  (within the meaning of Section 414(b) of the Internal Revenue Code
of 1986, as amended (the "Code")) of which the Company is a member.  If Employee
is employed by a  corporation  which,  as a result of a sale or other  corporate
reorganization,  ceases to be a member of such  controlled  group,  such sale or
other corporate  reorganization shall be treated as a termination of Employee by
Employer  without Cause (as defined in Section 8) unless  immediately  following
the event and without any break in employment the Employee  remains  employed by
the Company or another  corporation which is a member of the controlled group of
corporations.

         NOW THEREFORE,  in  consideration  of the facts set forth above and the
various  promises and covenants set forth below,  the parties to this  Agreement
agree as follows:

1.       Ownership of Policy.

         The Company  acknowledges  that Employee is the owner of the Policy and
that Employee is entitled to exercise all of his or her ownership rights granted
by the terms of the Policy,  except to the extent that the power of the Employee
to exercise those rights is specifically limited by this Agreement. Except as so
limited, it is the expressed intention of the parties to reserve to Employee all
rights  in  and  to the  Policy  granted  to its  owner  by the  terms  thereof,
including,  but not  limited  to,  the right to change the  beneficiary  of that
portion of the proceeds to which  Employee is entitled  under  Section 4 of this
Agreement and the right to exercise settlement options.

2.       The Company's Security Interest.

         The Company's  security  interest in the Policy is conditioned upon its
satisfactorily performing all of the covenants under this Agreement. Each period
covered  by any  individual  premium  payment  described  in  Section 3 shall be
considered a discrete extension








of the Company's security interest in the Policy. The Company shall not have nor
exercise  any right in and to the  Policy  which  could,  in any way,  endanger,
defeat, or impair any of the rights of Employee in the Policy,  including by way
of illustration any right to collect the proceeds of the Policy in excess of the
amount due the Company as provided in this Agreement and in the Policy. The only
rights in and to the Policy  granted to the Company in this  Agreement  shall be
limited  to the  Company's  security  interest  in and to the cash  value of the
Policy,  as defined herein,  and a portion of the death benefit of the Policy as
hereinafter provided (the "Security Interest"). The Company shall not assign any
of its Security Interest in the Policy to anyone other than Employee.

3.       Premium payments.

         Until (a) Employee files a notice with the Company  pursuant to Section
10  electing  a Security  Release  Date (as  defined  in Section 10 below),  (b)
Employee  otherwise  attains his or her Security Release Date, or (c) Employee's
employment  with the  Company is  terminated  for any reason,  whichever  occurs
earliest,  the Company  agrees to pay premiums  under the Policy in amounts such
that premiums (not including the initial  premium)  received by each anniversary
date are at least equal to the  "cumulative  cost of term insurance" (as defined
in the Policy) from the first  anniversary date through the period ending twelve
months after the  anniversary  date in question.  The premium  payment  shall be
transmitted  directly by the Company to the Insurance  Company.  Consistent with
the preceding sentences, prior to the release of the Company's Security Interest
in the Policy,  Employee and the Company  agree that the Company shall from time
to time designate one or more individuals (the "Designee"),  who may be officers
of the  Company,  who shall be  entitled to adjust the death  benefit  under the
Policy;  provided,  however,  that  the  Designee  may  only  increase,  but not
decrease,  the death  benefit  in effect on the date that the  Policy is issued.
During the period of time that this Agreement is in effect, Employee irrevocably
agrees that all  dividends  paid on the Policy shall be applied to purchase from
the Insurance Company additional paid-up life insurance on the life of Employee.

4.       Death of Employee while employed by Employer.

         (a) If Employee dies prior to termination  of employment  with Employer
and prior to his or her Security  Release Date (as defined in Section 10 below),
Employee's  designated  beneficiary  shall be  entitled  to  receive  as a death
benefit an amount equal to four times Employee's  annual base salary at the time
of death. The amount described in the preceding  sentence shall be paid from the
proceeds of the Policy.  To the extent that the death  benefit  under the Policy
exceeds such amount,  the balance of the death  benefit  shall be payable to the
Company.  The  designation  of the  beneficiaries  under the Policy  shall be in
accordance with this Section.

         (b) Employee agrees that, during the period of this Agreement, Employee
will obtain and provide to the Company and/or the Insurance  Company the written
consent of the spouse of the Employee, in the form attached hereto as Exhibit B,
to any designation




                                        2





by Employee of anyone other than the  Employee's  spouse as the  beneficiary  to
receive the benefits under this Section 4.

5.       Employee's attaining his or her Security Release Date or termination of
         Employee's employment on account of a Qualifying Termination.

         (a) By making  timely  payment of the premiums  described in Section 3,
the  Company  may renew its  Security  Interest  in the  Policy  for the  period
commencing with the due date of such payment until the later of (1) the due date
of the next  payment  described  in  Section  3, or (2) the date  that  Employee
attains his or her  Security  Release  Date or  terminates  employment  with the
Employer  on  account  of a  Qualifying  Termination  (either  of  which  events
described in this clause 2 is referred to herein as a "Qualifying  Event").  The
Company may not extend its Security  Interest in the Policy under the Collateral
Security  Assignment  Agreement  attached as Exhibit A after the occurrence of a
Qualifying  Event.  After such Qualifying  Event,  Employee shall be entitled to
exercise  all  of his  or  her  ownership  rights  in  the  Policy  without  any
limitation,   and  this  Agreement  and  its  accompanying  Collateral  Security
Assignment  Agreement  shall no longer  constitute a  restriction  on Employee's
rights.

         (b)  Notwithstanding  paragraph (a), the Company shall continue to have
its  Security  Interest  in the Policy to the  extent  required  to satisfy  its
withholding obligations as described in Section 12.

         6.  Termination  of an Employee  for a reason  other than a  Qualifying
Termination.

         If the employment of Employee with Employer is terminated  prior to his
or her Security  Release  Date for a reason other than a Qualifying  Termination
(as  described  below),  Employee  shall cause,  either by  withdrawing  from or
borrowing against the Policy,  on a nonrecourse  basis, to be transferred to the
Company an amount  equal to the maximum  amount that may then be obtained  under
the Policy.  In the event that the amount that can be withdrawn from or borrowed
against  the Policy is less than the cash  surrender  value of the  Policy,  the
Company shall withhold from other compensation payable to Employee the amount of
such  difference  unless  Employee has previously  transferred to the Company an
amount  equal  to  such  difference.  In no  event  shall  Employee's  voluntary
resignation prior to attaining his or her Security Release Date (as such concept
is further  defined below) ever constitute a Qualifying  Termination,  except in
certain situations following a Change in Control (see Section 9).

7.       Definition of a Qualifying Termination.

         A  Qualifying  Termination  is  either  of the  following  events:  the
termination  of  Employee  by  Employer  for any reason  other than  "Cause," as
described in Section 8; or the termination of Employee after a Change in Control
under the  circumstances  described in Section 9(a).  Both of these concepts are
further defined below.





                                        3





8.       Qualifying  Termination  because Employee is terminated for a reason
other than "Cause".

         For purposes of this Section, "Cause" shall mean (1) Employee's failure
to render  services to the Employer where such failure  amounts to gross neglect
or  misconduct  of  Employee's   responsibilities  and  duties;  (2)  Employee's
commission  of an act of  fraud  or  dishonesty  against  the  Employer;  or (3)
Employee's conviction of a felony or other crime involving moral turpitude.

9.       Qualifying Termination on account of termination after a Change in 
Control.

         (a) A  Qualifying  Termination  shall be treated as  occurring  after a
"Change in Control"  (as defined  below) if there is first a "Change in Control"
and  then,  within  one year  following  such  Change  in  Control,  either  (1)
Employee's  employment  with the  Employer  is  terminated  without  "Cause" (as
defined in Section 8) or (2) Employee  terminates his or her employment with the
Employer for "Good Reason" (as defined in subsection (c) below).

         (b) For purposes of this Section,  a "Change in Control" shall mean the
occurrence of any of the following:

                  (1)      any "Person" (as such term is used in Sections  13(d)
                           and 14(d) of the Securities Exchange Act of 1934 (the
                           "Exchange Act")) (an "Acquiring  Person") becomes the
                           "beneficial  owner" (as  defined in Rule 13d-3  under
                           the  Exchange  Act),   directly  or  indirectly,   of
                           securities of the Company representing 20% or more of
                           the combined power of the Company's then  outstanding
                           securities,   excluding  any  employee  benefit  plan
                           sponsored  or  maintained  by  the  Company  (or  any
                           trustee of such plan acting as trustee);

                  (2)      the  stockholders of the Company approve an agreement
                           to merge or  consolidate  the  Company  with  another
                           corporation  (other than a corporation 50% or more of
                           which is  controlled  by, or is under common  control
                           with, the Company);

                  (3)      any  individual  who is  nominated  by the  Board  of
                           Directors of the Company for election to the Board of
                           Directors  of the  Company on any date fails to be so
                           elected as a direct or  indirect  result of any proxy
                           fight or  contested  election  for  positions  on the
                           Board of Directors;

                  (4)      a change in control of the  Company of a nature  that
                           would be  required to be reported in response to Item
                           6(e) of Schedule 14A of  Regulation  14A  promulgated
                           under the Exchange Act occurs; or

                  (5)      a majority of the Board of Directors of the Company 
                           determines in its sole and absolute discretion that 
                           there has been a Change in Control




                                        4





                           of the  Company  or that  there  will be a Change  in
                           Control of the Company upon the occurrence of certain
                           specified events and such events occur.

         Notwithstanding  Paragraphs  (1) through (4) of this  Section  9(b),  a
Change in Control  shall not occur by reason of any event which would  otherwise
constitute  a Change in Control if,  immediately  after the  occurrence  of such
event,  individuals  who are  Acquiring  Persons and who were  employees  of the
Company  immediately  prior to the  occurrence  of such  event  own,  on a fully
diluted  basis,  securities  of the Company  representing  (a) 5% or more of the
combined voting power of the Company's then outstanding equity securities or (b)
5% or more of the value of the Company's then outstanding equity securities.

         (c)  For  purposes  of this  Section,  "Good  Reason"  shall  mean  the
occurrence of one of the following events:

                  (1)      the   assignment   to  the  Employee  of  any  duties
                           inconsistent  with,  or the  reduction  of  powers or
                           functions  associated  with, his  positions,  duties,
                           responsibilities   and  status   with  the   Employer
                           immediately  prior to a  Change  in  Control,  or any
                           removal  of the  Employee  from,  or any  failure  to
                           reelect the Employee to, any positions or offices the
                           Employee  held  immediately  prior  to  a  Change  in
                           Control, except in connection with the termination of
                           the Employee's employment by the Employer for "Cause"
                           (as defined in Section 8);

                  (2)      a reduction  by the Employer of the  Employee's  base
                           salary as in effect  immediately prior to a Change in
                           Control, except in connection with the termination of
                           the Employee's employment by the Employer for "Cause"
                           (as defined in Section 8);

                  (3)      a change in the Employee's principal work location to
                           a   location   more  than   forty   (40)  miles  from
                           Fayetteville, Arkansas, except for required travel on
                           the  Employer's  business to an extent  substantially
                           consistent   with  the  Employee's   business  travel
                           obligations immediately prior to a Change in Control;

                  (4)      (A) the failure by the Employer to continue in effect
                           any employee  benefit  plan,  program or  arrangement
                           (including,  without  limitation,  "employee  benefit
                           plans"  within the  meaning  of  Section  3(3) of the
                           Employee  Retirement  Income Security Act of 1974) in
                           which  the  Employee  was  participating  immediately
                           prior to a Change in Control  (or  substitute  plans,
                           programs or arrangements  providing the Employee with
                           substantially  similar  benefits),  (B) the taking of
                           any action, or the failure to take any action, by the
                           Employer   which  could  (i)  adversely   affect  the
                           Employee's participation in, or materially reduce the
                           Employee's   benefits  under,   any  of  such  plans,
                           programs or



                                        5





                           arrangements,  (ii) materially  adversely  affect the
                           basis for computing benefits under any of such plans,
                           programs  or   arrangements   or  (iii)  deprive  the
                           Employee of any material  fringe  benefit  enjoyed by
                           the Employee immediately prior to a Change in Control
                           or (C) the  failure by the  Employer  to provide  the
                           Employee  with the  number of paid  vacation  days to
                           which the Employee was entitled  immediately prior to
                           a Change in Control in accordance with the Employer's
                           vacation  policy  applicable  to the Employee then in
                           effect,  except in connection with the termination of
                           the Employee's  employment by the Company for "Cause"
                           (as defined in Section 8);

                  (5)      the failure by the  Employer to pay the  Employee any
                           portion of the Employee's  current  compensation,  or
                           any portion of the Employee's  compensation  deferred
                           under any plan,  agreement or  arrangement of or with
                           the  Employer  within seven (7) days of the date such
                           compensation is due;

                  (6)      a material increase in the required working hours of
                           the Employee from that required prior to a Change in 
                           Control; or

                  (7)      the failure by the Employer to obtain an assumption
                           of the obligations of the Employer under this 
                           Agreement by any successor to the Employer.

         (d) A termination of employment by Employee  within the 12-month period
following a Change in Control shall be for Good Reason if one of the occurrences
specified in paragraph (c) shall have  occurred,  notwithstanding  that Employee
may have other  reasons for  terminating  employment,  including  employment  by
another employer which Employee desires to accept.

10.      Employee's attaining his or her Security Release Date.

         (a) Employee's  "Security Release Date" shall mean the date which is at
least two years following the date on which the Company receives from Employee a
completed  notice  in the form  attached  hereto as  Exhibit  C,  provided  that
Employee  continues  to be  employed  by  Employer  until such date.  Employee's
election of a Security Release Date shall be irrevocable.

         (b)  Employee's  "Security  Release  Date" shall also mean the one-year
anniversary  of a Change in Control,  provided  that  Employee  continues  to be
employed by Employer until such date.

         (c)  Employee  shall  attain  his or her  Security  Release  Date  upon
becoming  disabled while employed by the Employer.  Employee shall be considered
"disabled"  at the time that the  Administrator  (as  defined in  Section  13(a)
below) determines, based upon


                                        6




competent medical advice, that an Employee is incapable of rendering substantial
services to the Employer by reason of mental or physical disability.

         (d) The Company's  Security  Interest in the Policy is contingent  upon
the timely payment of the premiums  required under Section 3 of this  Agreement.
Each period  covered by any  individual  premium  payment shall be considered an
independent  extension of the Company's  Security Interest in the Policy. In the
event that the Company  waives its rights by reason of failure to make  payments
under Section 3 of this Agreement,  Employee shall immediately attain his or her
Security  Release Date (provided,  however,  that the cessation of the Company's
obligations to pay premiums upon Employee's  filing of an election of a Security
Release  Date  shall not result in  Employee  immediately  attaining  his or her
Security  Release  Date.) The  Company's  failure to extend its rights in no way
affects the Company's duties and obligations under this Agreement.

11.      Limitation on Employee's rights prior to a Qualifying Event.

         In order to protect the Company's Security Interest and notwithstanding
any other provisions in this Agreement,  prior to a Qualifying  Event,  Employee
agrees that he or she will not modify the death benefit under the Policy, direct
the  investment of the cash  surrender  value of the Policy,  borrow against the
Policy,  assign  the  Policy,  or obtain  any  portion  of the cash value of the
Policy.  Notwithstanding  the  preceding  sentence,  if  Section 6 applies  to a
termination,  Employee  may borrow or withdraw  from the Policy,  so long as the
borrowing or withdrawal request is submitted to the Insurance Company along with
a directive that the borrowed or withdrawn amount be transferred directly to the
Company.  Prior to the release of the Company's Security Interest in the Policy,
Employee and the Company  agree that the Company shall from time to time appoint
one or more  individuals (the  "Designee"),  who may be officers of the Company,
who shall be entitled  to direct the  investments  under the  Policy;  provided,
however,  that, the Designee may only direct the investments under the Policy in
funds offered by the Insurance Company under the Policy.

12.      Tax Withholding.

         It is  recognized  by the  parties  that the rights of  Employee in the
Policy (as modified by the  Agreement)  may cause  Employee to be treated  under
certain  circumstances as in receipt of gross income.  These  circumstances  may
also impose upon the Company an obligation to deduct and withhold federal, state
or local taxes. Unless Employee otherwise provides the Company the amounts it is
required to  withhold,  Employee  shall  cause,  either by  withdrawing  from or
borrowing on a nonrecourse  basis against the Policy,  to be  transferred to the
Company  that  portion  of the cash  value of the  Policy  which is equal to the
amount of any federal, state or local taxes required to be withheld.




                                        7





13.      Disputes.

         (a) The Compensation Committee of the Board of Directors of the Company
(the "Administrator") shall administer this Agreement. The Administrator (either
directly or through its  designees)  will have power and authority to interpret,
construe,  and administer  this Agreement (for the purpose of this section,  the
Agreement shall include the Collateral Security Assignment Agreement);  provided
that, the Administrator's  authority to interpret this Agreement shall not cause
the  Administrator's  decisions  in this regard to be entitled to a  deferential
standard of review in the event that  Employee or his or her  beneficiary  seeks
review of the Administrator's decision as described below.

         (b) Neither the Administrator,  its designee nor its advisors, shall be
liable to any  person for any action  taken or  omitted in  connection  with the
interpretation and administration of this Agreement.

         (c)  Because  it is  agreed  that  time  will  be  of  the  essence  in
determining  whether any payments are due to Employee or his or her  beneficiary
under this  Agreement,  Employee  or his or her  beneficiary  may,  if he or she
desires,  submit any claim for payment under this Agreement or dispute regarding
the  interpretation  of this  Agreement  to  arbitration.  This  right to select
arbitration  shall be solely  that of  Employee  or his or her  beneficiary  and
Employee or his or her beneficiary may decide whether or not to arbitrate in his
or her  discretion.  The  "right  to select  arbitration"  is not  mandatory  on
Employee or his or her  beneficiary  and Employee or his or her  beneficiary may
choose in lieu thereof to bring an action in an appropriate civil court. Once an
arbitration is commenced, however, it may not be discontinued without the mutual
consent of both parties to the arbitration.  During the lifetime of the Employee
only he or she can use the arbitration procedure set forth in this section.

         (d) Any claim for arbitration may be submitted as follows:  if Employee
or his  or her  beneficiary  disagrees  with  the  Administrator  regarding  the
interpretation  of this  Agreement  and  the  claim  is  finally  denied  by the
Administrator  in whole or in part,  such claim may be filed in writing  with an
arbitrator of Employee's or  beneficiary's  choice who is selected by the method
described  in the next four  sentences.  The first step of the  selection  shall
consist  of  Employee  or his or  her  beneficiary  submitting  a list  of  five
potential arbitrators to the Administrator. Each of the five arbitrators must be
either (1) a member of the National Academy of Arbitrators  located in the State
of Arkansas or (2) a retired Arkansas Circuit Court, Court of Appeals or Supreme
Court judge.  Within one week after receipt of the list, the Administrator shall
select  one of the  five  arbitrators  as the  arbitrator  for  the  dispute  in
question. If the Administrator fails to select an arbitrator in a timely manner,
Employee  or  his  or her  beneficiary  shall  then  designate  one of the  five
arbitrators as the arbitrator for the dispute in question.

         (e) The arbitration hearing shall be held within seven days (or as soon
thereafter as possible) after the picking of the  arbitrator.  No continuance of
said hearing shall be allowed  without the mutual  consent of Employee or his or
her beneficiary and the



                                        8





Administrator.  Absence from or  nonparticipation at the hearing by either party
shall not  prevent  the  issuance  of an award.  Hearing  procedures  which will
expedite  the hearing  may be ordered at the  arbitrator's  discretion,  and the
arbitrator  may close the hearing in his or her sole  discretion  when he or she
decides he or she has heard sufficient evidence to satisfy issuance of an award.

         (f) The  arbitrator's  award  shall be  rendered  as  expeditiously  as
possible and in no event later than one week after the close of the hearing.  In
the event the arbitrator finds that the Company has breached this Agreement,  he
or she shall order the Company to immediately take the necessary steps to remedy
the breach.  The award of the  arbitrator  shall be final and  binding  upon the
parties.  The award may be enforced in any appropriate court as soon as possible
after its  rendition.  If an action is brought to  confirm  the award,  both the
Company and  Employee  agree that no appeal  shall be taken by either party from
any decision rendered in such action.

         (g) Solely for  purposes of  determining  the  allocation  of the costs
described  in  this  subsection,   the  Administrator  will  be  considered  the
prevailing party in a dispute if the arbitrator  determines (1) that the Company
has not  breached  this  Agreement  and (2) the claim by  Employee or his or her
beneficiary  was not  made  in good  faith.  Otherwise,  Employee  or his or her
beneficiary  will be  considered  the  prevailing  party.  In the event that the
Company is the  prevailing  party,  the fee of the  arbitrator and all necessary
expenses of the hearing  (excluding any attorneys' fees incurred by the Company)
including stenographic reporter, if employed,  shall be paid by the other party.
In the event that Employee or his or her  beneficiary is the  prevailing  party,
the fee of the arbitrator and all necessary  expenses of the hearing  (including
all attorneys'  fees incurred by Employee or his or her  beneficiary in pursuing
his or her claim),  including the fees of a  stenographic  reporter if employed,
shall be paid by the Company.

14.      Collateral Security Assignment of Policy to the Company.

         In consideration  of the promises  contained  herein,  the Employee has
contemporaneously  herewith  granted the Security  Interest in the Policy to the
Company as collateral, under the form of Collateral Security Assignment attached
hereto as Exhibit A, which Collateral  Security Assignment gives the Company the
limited power to enforce its rights to recover the cash value of the Policy,  or
a portion of the death benefit thereof,  under the circumstances defined herein.
The Company's  Security Interest in the Policy shall be specifically  limited to
the rights set forth above in this Agreement,  notwithstanding the provisions of
any other documents including the Policy.  Employee agrees to execute any notice
prepared by the Company  requesting  a  withdrawal  or  non-recourse  loan in an
amount equal to the amount to which the Company is entitled  under Sections 5, 6
or 12 of this Agreement.




                                        9





15.      Employee's beneficiary rights and security interest.

         (a) The Company and Employee  intend that in no event shall the Company
have any power or  interest  related  to the Policy or its  proceeds,  except as
provided herein and in the Collateral Security Assignment. In the event that the
Company ever receives or may be deemed to have received any right or interest in
the Policy or its proceeds beyond the limited rights described herein and in the
Collateral  Security  Assignment,  such right or interest shall be held in trust
for the  benefit of  Employee  and be held  separate  from the  property  of the
Company. The Company hereby agrees to act as trustee for the benefit of Employee
concerning  any  right to the  Policy  or its  proceeds,  except  to the  extent
expressly provided otherwise in this Agreement.

         (b) In order to further protect the rights of the Employee, the Company
agrees  that its  rights to the  Policy  and  proceeds  thereof  shall  serve as
security  for  the  Company's  obligations  as  provided  in this  Agreement  to
Employee. The Company grants to Employee a security interest in and collaterally
assigns to  Employee  any and all  rights the  Company  has in the  Policy,  and
products and proceeds thereof whether now existing or hereafter arising pursuant
to the  provisions  of the  Policy,  this  Agreement,  the  Collateral  Security
Assignment or otherwise,  to secure any and all obligations  owed by the Company
to  Employee  under  this  Agreement.  In  no  event  shall  this  provision  be
interpreted to reduce  Employee's  rights to the Policy or expand in any way the
rights or  benefits  of the  Company  under  this  Agreement,  the Policy or the
Collateral Security Assignment.  This security interest granted to Employee from
the  Company  shall  automatically  expire  and be  deemed  waived  if  Employee
terminates employment with Employer prior to a Qualifying Event. Nothing in this
provision  shall  prevent  the  Company  from  receiving  its share of the death
benefits under the Policy as provided in Section 4 of this Agreement.

16.      Amendment of Agreement.

         Except as  provided in a written  instrument  signed by the Company and
Employee, this Agreement may not be cancelled, amended, altered, or modified.

17.      Notice under Agreement.

         Any notice,  consent, or demand required or permitted to be given under
the  provisions  of this  Agreement by one party to another shall be in writing,
signed by the party giving or making it, and may be given  either by  delivering
it to such other party  personally or by mailing it, by United States  Certified
mail,  postage  prepaid,  to such party,  addressed to its last known address as
shown on the records of the Company.  The date of such  mailing  shall be deemed
the date of such mailed notice, consent, or demand.

18.      Binding Agreement.

         This  Agreement  shall bind the  parties  hereto  and their  respective
successors,  heirs, executor,  administrators,  and transferees,  and any Policy
beneficiary.



                                       10






19.      Controlling law and characterization of Agreement.

         (a) To the extent not governed by federal law,  this  Agreement and the
right to the parties  hereunder  shall be controlled by the laws of the State of
Arkansas.

         (b) If this  Agreement  is  considered  a  "plan"  under  the  Employee
Retirement  Income  Security Act of 1974 (ERISA),  both the Company and Employee
acknowledge  and agree that for all purposes the Agreement shall be treated as a
"welfare  plan" within the meaning of Section 3(1) of ERISA,  so that only those
provisions of ERISA  applicable  to welfare plans shall apply to the  Agreement,
and that any rights that might arise under ERISA if this  Agreement were treated
as a  "pension  plan"  within the  meaning  of Section  3(2) of ERISA are hereby
expressly  waived.  Consistent  with the preceding  sentence,  Employee  further
acknowledges  that  his or her  rights  to the  Policy  and the  release  of the
Company's  Security  Interest are strictly  limited to those rights set forth in
this Agreement.  In furtherance of this  acknowledgement and in consideration of
the  Company's  payment  of the  initial  premiums  for  this  Policy,  Employee
voluntarily and irrevocably relinquishes and waives any additional rights in the
Policy or any different  restrictions  on the release of the Company's  Security
Interest  that he or she might  otherwise  argue to exist  under  either  state,
federal,  or other law.  Employee  further  agrees that he or she will not argue
that any such additional rights or different  restrictions exist in any judicial
or arbitration proceeding. Similarly, the Company acknowledges that its Security
Interest is strictly  limited as set forth in this Agreement and voluntarily and
irrevocably  relinquishes  and  waives any  additional  interests  or  different
interests or  advantages  that the Company  would have or enjoy if the Agreement
were not  treated as a "welfare  plan"  within  the  meaning of section  3(1) of
ERISA.

20.      Execution of Documents.

         The  Company  and  Employee  agree  to  execute  any and all  documents
necessary to effectuate the terms of this Agreement.

                                              SOUTHWESTERN ENERGY COMPANY


                                              By:    /s/ CHARLES E. SCHARLAU
                                                   -----------------------------
                                              Its:     Chairman and CEO
                                                   -----------------------------


                                              EMPLOYEE

                                                     /s/ STANLEY D. GREEN
                                              ---------------------------------




                                       11





                                    EXHIBIT A

                    COLLATERAL SECURITY ASSIGNMENT AGREEMENT


         This Collateral  Security Assignment is made and entered into effective
as of February 1, 1996,  by the  undersigned  as the owner (the "Owner") of Life
Insurance Policy Number  1A23067760 (the "Policy") issued by Pacific Mutual Life
Insurance  Company (the  "Insurer")  upon the life of Owner and by  Southwestern
Energy Company, an Arkansas corporation (the "Assignee").

         WHEREAS,  the Owner is a valued employee of Assignee or a subsidiary of
Assignee,  and  the  Assignee  wishes  to  retain  him  or  her  in  its  or its
subsidiary's employ; and

         WHEREAS,  as an inducement  to the Owner's  continued  employment,  the
Assignee wishes to pay premiums on the Policy, as more specifically provided for
in that certain Split- Dollar Life Insurance  Agreement dated as of  February 1,
1996,  and entered into between the Owner and the Assignee as such agreement may
be hereafter amended or modified (the "Agreement")  (unless otherwise  indicated
the terms herein shall have the definitions ascribed thereto in the Agreement);

         WHEREAS,  in consideration of the Assignee agreeing to make the premium
payments,  the Owner  agrees to grant the  Assignee a security  interest  in the
Policy as collateral security; and

         WHEREAS,  the Owner  and  Assignee  intend  that the  Assignee  have no
greater interest in the Policy than that prescribed  herein and in the Agreement
and that if the Assignee ever obtains any right or interest in the Policy or the
proceeds thereof, except as provided herein and in the Agreement,  such right or
interest  shall be held in trust for the Owner to  satisfy  the  obligations  of
Assignee to Owner under the Agreement and the Assignee  additionally agrees that
its rights to the Policy  shall serve as  security  for its  obligations  to the
Owner under the Agreement;

         NOW,  THEREFORE,  the Owner hereby assigns,  transfers and sets over to
the Assignee for security the following  specific rights in the Policy,  subject
to the following terms, agreements and conditions:

         1. This Collateral Security Assignment is made, and the Policy is to be
held, as collateral  security for all  liabilities  of the Owner to the Assignee
pursuant  to the terms of the  Agreement,  whether  now  existing  or  hereafter
arising (the "Secured  Obligations").  The Secured Obligations  include: (i) the
obligation  of the Owner to transfer an amount equal to the entire cash value in
the event that the Owner terminates  employment with Employer for a reason other
than a Qualifying  Termination and before  attaining his or her Security Release
Date;  (ii) the obligation of the Owner to pay an amount of cash to the Assignee
or transfer to the Assignee that portion of the cash value which is equal to any
federal, state




                                        1





or local taxes that  Assignee  may be  required to withhold  and collect (as set
forth in Section 12 of the Agreement);  and (iii) the obligation of the Owner to
name the Assignee as  beneficiary  for a portion of the death  benefit under the
Policy  in the  event of the  death of Owner  prior to  Owner's  termination  of
employment with Employer in accordance with Section 4 of the Agreement.

         2. The Owner  hereby  grants to  Assignee  a security  interest  in and
collaterally  assigns  to  Assignee  the Policy and the cash value to secure the
Secured  Obligations.  However,  the Assignee's  interest in the Policy shall be
strictly limited to:

         (a) The right to be paid the Assignee's portion of the death benefit in
the event of the death of Owner prior to Owner's  termination of employment with
Employer in accordance with Section 4 of the Agreement;

         (b) The right to  receive an amount  equal to the entire  cash value of
the Policy (which right may be realized by Assignee's receiving a portion of the
death  benefit  under  the  Policy  or by  Owner's  causing  such  amount  to be
transferred  to Assignee  (through  withdrawing  from or  borrowing  against the
Policy) in accordance  with the terms of the Agreement) if the Owner  terminates
employment  with  Employer  for a reason  other  than a  Qualifying  Termination
(unless he or she has previously attained his or her Security Release Date); and

         (c) The right to receive an amount equal to any federal, state or local
taxes that  Assignee  may be required  to withhold  and collect (as set forth in
Section 12 of the Agreement).

         3.(a) Owner shall retain all incidents of ownership in the Policy,  and
may exercise  such  incidents of  ownership  except as otherwise  limited by the
Agreement and  hereunder.  The Insurer is only  authorized to recognize  (and is
fully protected in recognizing) the exercise of any ownership rights by Owner if
the  Insurer  determines  that the  Assignee  has been  given  notice of Owner's
purported  exercise of ownership  rights in  compliance  with the  provisions of
Section  3(b)  hereof and as of the date thirty days after such notice is given,
the  Insurer  has  not  received  written  notification  from  the  Assignee  of
Assignee's  objection to such exercise;  provided  that, the  designation of the
beneficiary  to receive the death  benefits  not  otherwise  payable to Assignee
pursuant to Section 4 of the Agreement may be changed by the Owner without prior
notification  of Assignee.  The Insurer shall not be  responsible to ensure that
the actions of the Owner conform to the Agreement.

         (b) Assignee hereby  acknowledges  that for purposes of this Collateral
Security Assignment, Assignee shall be conclusively deemed to have been properly
notified of Owner's purported  exercise of his or her ownership rights as of the
third  business day following  either of the following  events:  (1) Owner mails
written  notice of such  exercise to Assignee by United States  certified  mail,
postage  paid, at the address below and provides the Insurer with a copy of such
notice and a copy of the certified mail receipt or (2) the



                                        2





Insurer  mails  written  notice of such  exercise to Assignee by regular  United
States mail, postage paid, at the address set forth below:

                           Southwestern Energy Company
                           P.O. Box 1408
                           Fayetteville, Arkansas  72702

                           ATTN:  Corporate Secretary

The foregoing  address shall be the  appropriate  address for such notices to be
sent  unless and until the  receipt  by both Owner and the  Insurer of a written
notice from Assignee of a change in such address.

         (c)  Notwithstanding  the  foregoing,  Owner and Assignee  hereby agree
that, until  Assignee's  security  interest in the Policy is released,  Assignee
shall from time to time designate one or more individuals (the "Designee"),  who
may be officers of Assignee,  who shall be entitled to adjust the death  benefit
under the Policy  and to direct  the  investments  under the  Policy;  provided,
however,  that the  Designee  may only  increase,  but not  decrease,  the death
benefit in effect on the date that the Policy is issued; provided, further, that
the Designee may only direct the  investments  under the Policy in funds offered
by the Insurer under the Policy. Assignee shall notify the Insurer in writing of
the identity of the  Designee  and any changes in the identity of the  Designee.
Until Assignee's security interest in the Policy is released, no other party may
adjust the death benefit or direct the investments  under the Policy without the
consent of the Assignee and Owner.

         4. If the Policy is in the  possession  of the  Assignee,  the Assignee
shall,  upon  request,  forward the Policy to the Insurer  without  unreasonable
delay  for  endorsement  of any  designation  or change  of  beneficiary  or the
exercise of any other right reserved by the Owner.

         5.(a)  Assignee  shall be  entitled to  exercise  its rights  under the
Agreement by  delivering a written  notice to Insurer,  executed by the Assignee
and the Owner or the Owner's beneficiary,  requesting either (1) a withdrawal or
nonrecourse  policy loan equal to the amount to which Assignee is entitled under
Sections 5, 6 or 12 of the Agreement and transfer of such  withdrawn or borrowed
amount to  Assignee or (2) the  payment to the  Assignee of that  portion of the
death benefit under the Policy to which the Assignee is entitled under Section 4
of the  Agreement.  So long as the notice is also  signed by Owner or his or her
beneficiary, Insurer shall pay or loan the specified amounts to Assignee without
the need for any additional documentation.

         (b) Upon  receipt  of a properly  executed  notice  complying  with the
requirements  of  subsection  (a) above,  the  Insurer is hereby  authorized  to
recognize the  Assignee's  claims to rights  hereunder  without the need for any
additional  documentation  and  without  investigating  (1) the  reason for such
action  taken by the  Assignee;  (2) the  validity  or the  amount of any of the
liabilities of the Owner to the Assignee under the Agreement; (3) the




                                        3





existence of any default therein;  (4) the giving of any notice required herein;
or (5) the  application  to be made by the Assignee of any amounts to be paid to
the Assignee. The receipt of the Assignee for any sums received by it shall be a
full discharge and release therefor to the Insurer.

         6.  Upon  the  full  payment  of the  liabilities  of the  Owner to the
Assignee  pursuant to the  Agreement,  the Assignee shall execute an appropriate
release of this Collateral Security Assignment.

         7. The Assignee  shall have the right to request of the Insurer  and/or
the Owner notice of any action taken with respect to the Policy by the Owner.

         8.(a) The  Assignee  and the Owner  intend  that in no event  shall the
Assignee  have any power or  interest  related  to the  Policy or its  proceeds,
except as provided herein and in the Agreement,  notwithstanding  the provisions
of any other documents including the Policy. In the event that the Assignee ever
receives  or may be deemed to have  received  any right or  interest  beyond the
limited rights  described  herein and in the  Agreement,  such right or interest
shall be held in trust for the  benefit of the Owner and be held  separate  from
the property of the Assignee.  The Assignee  hereby agrees to act as trustee for
the  benefit of the Owner  concerning  any right to the Policy or its  proceeds,
except to the extent  expressly  provided  otherwise in the  Agreement  and this
Collateral Security Assignment Agreement.

         (b) In order to further  protect the rights of the Owner,  the Assignee
agrees  that its  rights to the  Policy  and  proceeds  thereof  shall  serve as
security  for  the  Assignee's  obligations  to the  Owner  as  provided  in the
Agreement.   Assignee  hereby  grants  to  Owner  a  security  interest  in  and
collaterally  assigns  to Owner  any and all  rights it has in the  Policy,  and
products  and  proceeds  thereof,  whether  now  existing or  hereafter  arising
pursuant  to the  provisions  of the  Policy,  the  Agreement,  this  Collateral
Security Assignment or otherwise,  to secure Assignee's  obligations  ("Assignee
Obligations")  to Owner under the  Agreement,  whether now existing or hereafter
arising.  The Assignee  Obligations include all obligations owed by the Assignee
to Owner under the Agreement,  including without limitation:  (i) the obligation
to transfer  ownership  of the Policy to Owner and to make the premium  payments
required  under Section 3 of the Agreement and (ii) the obligation to do nothing
which may, in any way, endanger,  defeat or impair any of the rights of Owner in
the Policy as provided in the  Agreement.  In no event shall this  provision  be
interpreted  to reduce  Owner's  rights  in the  Policy or expand in any way the
rights or benefits of the Assignee under the Agreement.  In the event that Owner
terminates  employment with Employer for any reason prior to a Qualifying Event,
this security  interest and collateral  assignment  granted by Assignee to Owner
shall automatically expire and be deemed waived. Nothing in this provision shall
prevent the Assignee from  receiving its share of the death  benefits  under the
Policy as provided in Section 4 of the Agreement.

         9.  Assignee  and Owner agree to execute  any  documents  necessary  to
effectuate this Collateral Security Assignment pursuant to the provisions of the
Agreement. All



                                        4





disputes shall be settled as provided in Section 13 of the Agreement. The rights
under this Collateral  Security Assignment may be enforced pursuant to the terms
of the Agreement.

         IN  WITNESS  WHEREOF,   the  Owner  and  Assignee  have  executed  this
Collateral Security Assignment effective the day and year first above written.




                                             -----------------------------------
                                             Stanley D. Green, Owner

                                             SOUTHWESTERN ENERGY COMPANY


                                             By:________________________________

                                             Title:_____________________________





                                        5





                                    EXHIBIT B

            SPOUSAL CONSENT TO DESIGNATION OF NONSPOUSAL BENEFICIARY


                  My  spouse  is  Stanley  D.  Green.  I hereby  consent  to the
designation made by my spouse of ________________ as the beneficiary (subject to
any rights  collaterally  assigned to  Southwestern  Energy  Company) under Life
Insurance Policy No. 1A23067760, which Southwestern Energy Company has purchased
from  Pacific  Mutual Life  Insurance  Company  and  transferred  to him/her.  I
understand  that this  consent is valid  only with  respect to the naming of the
beneficiary  indicated above and that the  designation of any other  beneficiary
will not be valid unless I consent in writing to such designation.

                  This  consent  is  being  voluntarily   given,  and  no  undue
influence or coercion has been  exercised in  connection  with my consent to the
designation made by my spouse of the beneficiary  named above rather than myself
as the beneficiary under the Split-Dollar Life Insurance Policy.


                                                  ------------------------------
                                                  Spouse's Signature


                                                  ------------------------------
                                                  Print Spouse's Name

                                                  ------------------------------
                                                  Date








                                    EXHIBIT C

                           SPLIT-DOLLAR LIFE INSURANCE
                        TWO YEAR SECURITY RELEASE NOTICE

         Pursuant to the  Split-Dollar  Life  Insurance  Agreement  entered into
between  Southwestern Energy Company (the "Company") and me dated as of February
1, 1996  (the  "Agreement"),  I hereby  notify the Company  that I request to be
released on _____, _____ ("Security Release Date") from the Company's collateral
security in Policy Number  1A23067760  issued by Pacific  Mutual Life  Insurance
Company.  I understand that my Security  Release Date must be at least two years
from the date on which the Company  receives this Notice.  I further  understand
that in order for the Company's  collateral  security interest to be released on
my Security  Release  Date, I must continue to be employed by the Company or one
of its subsidiaries (as defined in the Agreement) until such date.

                                                   -----------------------------
                                                   Stanley D. Green


                                                   -----------------------------
                                                   Date



Received by Southwestern Energy Company

on ________________________________________

By ________________________________________