SOUTHWESTERN ENERGY COMPANY

                                       AND

                          EQUISERVE TRUST COMPANY, N.A.

                                  Rights Agent

                            -------------------------

          Amendment No. 1 to the Amended and Restated Rights Agreement

                           Dated as of March 15, 2002




                                 AMENDMENT NO. 1
                  TO THE AMENDED AND RESTATED RIGHTS AGREEMENT

     This  Amendment No. 1 to the Amended and Restated  Rights  Agreement  (this
"Amendment"),  dated as of March 15, 2002, between  Southwestern Energy Company,
an Arkansas  corporation  (the  "Company"),  and Equiserve Trust Company,  N.A.,
successor  to The First  National  Bank of Chicago  (the  "Rights  Agent").  All
capitalized  terms used in this  Amendment and not otherwise  defined shall have
the respective  meanings set forth in the Amended and Restated Rights  Agreement
(as defined below).
                              W I T N E S S E T H:
                              - - - - - - - - - -

     WHEREAS, on May 5, 1989 (the "Declaration Date"), the Board of Directors of
the Company  authorized  and declared a dividend of one right  representing  the
right to  purchase  one share of Common  Stock upon the terms and subject to the
conditions  set forth in a Rights  Agreement,  dated May 5,  1989,  between  the
Company and the Rights Agent (the "1989 Rights  Agreement") for each outstanding
share of common stock, $2.50 par value, of the Company  outstanding at the close
of business on May 19, 1989 (the "Record Date"),  and authorized the issuance of
one  Right  with  respect  to each  share of  Common  Stock  that  shall  become
outstanding between the Record Date and the earlier of the Distribution Date and
the Expiration Date, each Right initially representing the right to purchase one
share of Common Stock upon the terms and subject to the  conditions  hereinafter
set forth;

     WHEREAS,  the Company declared a three-for-one  stock split in 1993 and, in
connection  with such  split,  the number of Rights  was  adjusted  pursuant  to
Section 11 of the 1989 Rights  Agreement such that each  certificate  for Common
Stock  outstanding as of the date of this Amended and Restated Rights  Agreement
also represents one Right under the 1989 Rights Agreement representing the right
to  purchase  one  share of Common  Stock  upon the  terms  and  subject  to the
conditions set forth in the 1989 Rights Agreement;

     WHEREAS,  on April 12, 1999, in compliance  with the terms of Section 27 of
the 1989 Rights  Agreement,  the Company and the Rights  Agent  entered  into an
Amended  and  Restated  Rights  Agreement  (the  "Amended  and  Restated  Rights
Agreement") which amended and restated the 1989 Rights Agreement in its entirety
in order to extend the  Expiration  Date until  April 12, 2009 and to make other
changes and provisions  that they determined were necessary or desirable and did
not adversely affect the interests of the holders of the Rights;

     WHEREAS,  the  Company  wishes to amend the  Amended  and  Restated  Rights
Agreement in order to eliminate  the  requirement  of all required  approvals of
Independent Directors;

     WHEREAS,  in  compliance  with the terms of Section 27 of the  Amended  and
Restated Rights  Agreement,  the Company has (i) delivered to the Rights Agent a
certificate  from an  appropriate  officer of the Company which states that this
Amendment  has been  approved  by the  Company's  Board of  Directors  and is in
compliance with the terms of Section 27 of the

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Amended and  Restated  Rights  Agreement and (ii) instructed the Rights Agent to
execute this Amendment;

     NOW, THEREFORE,  in consideration of the premises and the mutual agreements
herein set forth, the parties hereby agree as follows:

     Section l. Definitions.

     (a) The definition of "Approved  Offer"  contained in  subparagraph  (d) of
Section 1 of the Amended and Restated Rights  Agreement is hereby amended in its
entirety to read as follows:

     ""Approved Offer" shall mean a tender or exchange offer for all outstanding
shares of Common  Stock that is at a price and on terms  approved,  prior to the
acceptance  for payment of shares  under such tender or exchange  offer,  by the
Board of  Directors  of the  Company  based upon the prior  recommendation  of a
majority of the board of directors."

     (b)  The  references  to the  defined  terms  "Independent  Directors"  and
"Proposed  Acquiror"  contained  in  subparagraph  (m) of  Section 1 are  hereby
deleted.

     Section 2.  Redemption.  Subparagraph  (a) of Section 23 of the Amended and
Restated Rights Agreement is amended in  its entirety to read as follows:

     "(a) The  Company  may, by  resolution  of its Board of  Directors,  at its
option,  at any time prior to the earlier of (x) the Stock  Acquisition  Date or
(y) the close of business on the Final Expiration Date,  redeem all but not less
than all of the then  outstanding  Rights  at a  redemption  price of $0.01  per
Right, as such amount may be appropriately  adjusted to reflect any stock split,
stock dividend or similar  transaction  occurring after the date of this Amended
and Restated Rights Agreement (such redemption price being hereinafter  referred
to as the  "Redemption  Price").  The  Company  may , at  its  option,  pay  the
Redemption  Price in cash,  shares of Common Stock (based on the "current market
price",  as defined in Section 11(d)(i) hereof,  of the Common Stock at the time
of such Board resolution) or any other form of consideration  deemed appropriate
by the Board of Directors."

     Section 3.  Exchange.  Subparagraph  (a) of Section 24 of the  Amended  and
Restated Rights Agreement is amended in its entirety  to read as follows:

     "(a) The Board of Directors of the Company may, at its option,  at any time
after the Stock  Acquisition  Date exchange all or part of the  then-outstanding
and  exercisable  Rights  (which shall not include  Rights that have become void
pursuant to the  provisions of Section  11(a)(iii)  hereof) for Common Stock (or
Common Stock  Equivalents) at an exchange ratio of one share of Common Stock per
Right,  appropriately  adjusted to reflect any stock  split,  stock  dividend or
similar transaction occurring after the date of this Amended and Restated Rights
Agreement  (such exchange ratio being  hereinafter  referred to as the "Exchange
Ratio").  Notwithstanding  the foregoing,  the Board of Directors of the Company
shall not be  empowered  to effect  such  exchange  at any time after any Person
(other than a Company  Entity),  together with all  Affiliates and Associates of
such  Person,  becomes the  Beneficial  Owner of 50% or more of the Common Stock
then outstanding."

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     Section  4.  Supplements  and  Amendments.  Section 27 of the  Amended  and
Restated Rights Agreement is amended in its entirety to read as follows:

     "The Company and the Rights Agent  shall,  if the Company so directs,  from
time to time  supplement  or amend this  Agreement  without the  approval of any
holders  of  Rights  in order  (i) to cure any  ambiguity,  (ii) to  correct  or
supplement any provision contained herein which may be defective or inconsistent
with any other  provisions  herein (provided that any amendment made pursuant to
clause (i) or (ii) hereof after a Stock  Acquisition  Date, shall not materially
adversely affect the interests of the holders of Right Certificates  (other than
an Acquiring Person or any Affiliate or Associate thereof)),  (iii) prior to the
Stock  Acquisition  Date, to effect any other change or  modification  which the
Company may deem  necessary or  desirable,  or (iv) after the Stock  Acquisition
Date,  to make any other  provisions  in regard to matters or questions  arising
hereunder  which the Company may deem necessary or desirable and which shall not
adversely affect the interests of the holders of Right Certificates  (other than
an Acquiring  Person or any  Affiliate or  Associate  thereof).  Notwithstanding
anything contained in this Agreement to the contrary,  this Agreement may not be
amended or supplemented (x) to reinstate a right of redemption if the Rights are
not then redeemable or (y) to decrease the Redemption  Price.  Upon the delivery
of a certificate  from an  appropriate  officer of the Company which states that
the proposed supplement or amendment has been approved by the Company's Board of
Directors  and is in  compliance  with the terms of this  Section 27, the Rights
Agent shall execute such supplement or amendment;  provided,  however,  that the
Rights Agent may, but shall not be obligated to, enter into any such  supplement
or amendment that adversely affects its rights,  duties or immunities under this
Agreement.  Prior to the  Distribution  Date,  the  interests  of the holders of
Rights  shall be deemed to coincide  with the  interests of holders of shares of
Common Stock (other than an Acquiring Person, an Adverse Person or any Affiliate
or Associate thereof)."

     Section  5.  Determinations  and  Actions by the Board of  Directors,  etc.
Section  31 of the  Amended  and  Restated  Rights  Agreement  is amended in its
entirety to read as follows:

     "The Board of Directors of the Company shall have the  exclusive  power and
authority to  administer  this  Agreement  and to exercise all rights and powers
specifically  granted to the Board of Directors or to the Company,  or as may be
necessary or  advisable  in the  administration  of this  Agreement,  including,
without limitation,  the right and power to (i) interpret the provisions of this
Agreement,  and (ii) make all  determinations  deemed necessary or advisable for
the  administration  of  this  Agreement  (including,   without  limitation,   a
determination  to redeem or not to redeem  the  Rights  pursuant  to  Section 23
hereof  or to  supplement  or amend  the  Agreement  and  whether  any  proposed
supplement or amendment  adversely affects the interests of the holders of Right
Certificates  and comports with the requirements of Section 27 hereof or to find
or to announce  publicly  that any Person has become an  Acquiring  Person or an
Adverse  Person).  For all purposes of this  Agreement,  any  calculation of the
number  of  shares  of  Common  Stock or  other  securities  outstanding  at any
particular time, including for purposes of determining the particular percentage
of such outstanding  shares of Common Stock or any other securities of which any
Person  is the  Beneficial  Owner,  shall  be made in  accordance  with the last
sentence of Rule  13d-3(d)(1)(i)  of the General Rules and Regulations under the
Exchange  Act as in  effect  on the date of this  Agreement.  All such  actions,
calculations,  interpretations  and  determinations  (including  for  purpose of
clause (y) below, all omissions with respect to the

                                       3

foregoing) which are done or made by the Board of Directors of the   Company  in
good  faith, shall (x) be final, conclusive  and  binding on  the  Company,  the
Rights  Agent,  the  holders of  the  Rights and all  other parties,  and (y) no
subject the Board of Directors or any director to any  liability to  the holders
of the Rights."

     Section 6. Governing  Law. This Amendment  shall be deemed to be a contract
made  under  the laws of the State of  Arkansas  and for all  purposes  shall be
governed by and construed in accordance  with the laws of such state  applicable
to contracts to be made and performed entirely within such state.

     Section 7.  Counterparts.  This  Amendment may be executed in any number of
counterparts and each of such  counterparts  shall for all purposes be deemed to
be an original,  and all such counterparts shall together constitute but one and
the same instrument.

     Section  8.  Descriptive  Headings.  Descriptive  headings  of the  several
Sections of  this  Agreement are  inserted for  convenience  only and  shall not
control or affect the meaning or  construction  of any of the provisions hereof.

     Section 9.  Ratification  of the Amended  and  Restated  Rights  Agreement.
Except as expressly amended hereby, the Amended and Restated Rights Agreement is
in all  respects  ratified  and  confirmed  and all the  terms,  conditions  and
provisions thereof shall remain in full force and effect.

     IN WITNESS  WHEREOF,  the parties  hereto have caused this  Amendment to be
duly executed and their  respective  corporate seals to be hereunto  affixed and
attested, all as of the date and the year first above written.

Attest:                                     SOUTHWESTERN ENERGY COMPANY


By:    /S/ MARK K. BOLING                   By:     /S/ GREG D. KERLEY
   ----------------------------                --------------------------------
   Mark K. Boling, Secretary                   Gregory D. Kerley,
                                               Executive Vice President and
                                               Chief Financial Officer

Attest:                                     EQUISERVE TRUST COMPANY, N.A.


By:                                         By:
   --------------------------                  --------------------------------
   Title:                                      Title:

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