EXHIBIT 1.1

                        3,500,000 Shares of Common Stock

                           QUICKSILVER RESOURCES INC.

                             UNDERWRITING AGREEMENT

                                 August 20, 2003

BEAR, STEARNS & CO. INC.
383 Madison Avenue
New York, New York 10179

Ladies/Gentlemen:

     Quicksilver  Resources Inc., a corporation organized and existing under the
laws of Delaware (the "Company"),  proposes, subject to the terms and conditions
stated herein, to issue and sell to Bear Stearns & Co. Inc. (the  "Underwriter")
an aggregate of 3,500,000  shares (the "Firm  Shares") of its common stock,  par
value $.01 per share (the "Common  Stock") and Mercury  Exploration  Company,  a
Texas corporation (the "Selling Stockholder") proposes, subject to the terms and
conditions stated herein,  for the sole purpose of covering  over-allotments  in
connection with the sale of the Firm Shares,  at the option of the  Underwriter,
to sell up to an additional  525,000 shares (the "Additional  Shares") of Common
Stock.  The Firm Shares and any Additional  Shares  purchased by the Underwriter
are referred to herein as the "Shares".  The Shares are more fully  described in
the Registration Statement and Prospectus referred to below.

     1.  Representations  and Warranties of the Company.  The Company represents
and warrants to, and agrees with, the Underwriter that:

     (a) The Company has filed with the Securities and Exchange  Commission (the
"Commission")  two  registration  statements on Form S-3 (No.  333-89204 and No.
333-92196), and amendments thereto, and related preliminary prospectuses for the
registration  under the  Securities  Act of 1933,  as amended  (the  "Securities
Act"), of the Shares which  registration  statements,  as so amended  (including
post-effective  amendments,  if  any),  have  been  declared  effective  by  the
Commission  and  copies  of  which  have   heretofore   been  delivered  to  the
Underwriter.  The  registration  statements,  as  amended  at the time they each
became effective,  including the prospectus,  financial  statements,  schedules,
exhibits  and  other  information  (if  any)  deemed  to be part  of  each  such
registration  statement  at the time of  effectiveness  pursuant to Rule 430A or
434(d) under the Securities Act, are hereinafter referred to collectively as the
"Registration  Statement."  If the Company has filed or is required  pursuant to
the terms hereof to file a registration  statement pursuant to Rule 462(b) under
the Securities Act registering additional shares of Common Stock (a "Rule 462(b)
Registration Statement"), then, unless otherwise specified, any reference herein
to the term "Registration Statement" shall be deemed to include such Rule 462(b)
Registration Statement. Other than a Rule 462(b) Registration Statement,  which,
if filed,  becomes  effective upon filing and a Rule 424(b)  Prospectus filed in
November 2002, no other document with respect to the Registration  Statement has
heretofore  been  filed  with  the  Commission.  All of  the  Shares  have  been
registered under the Securities Act pursuant to the  Registration  Statement or,
if any Rule 462(b)  Registration  Statement  is filed,  will be duly  registered
under  the  Securities  Act with the  filing of such  Rule  462(b)  Registration
Statement. No stop order suspending the effectiveness of either the Registration
Statement or the Rule 462(b) Registration Statement, if any, has been issued and
no  proceeding  for  that  purpose  has  been  initiated  or  threatened  by the
Commission.  The Company,  if required by the  Securities  Act and the rules and
regulations of the Commission  (the "Rules and  Regulations"),  proposes to file
the Prospectus  (as defined  below) with the Commission  pursuant to Rule 424(b)
under the Securities Act ("Rule 424(b)").  The prospectus,  in the form in which
it is to be filed  with the  Commission  pursuant  to Rule  424(b),  or,  if the
prospectus is not to be filed with the Commission  pursuant to Rule 424(b),  the
prospectus  in the form  included as part of the  Registration  Statement at the
time the Registration Statement became effective,  is hereinafter referred to as
the "Prospectus," except that if any revised prospectus or prospectus supplement
shall be provided to the  Underwriter by the Company for use in connection  with
the Offering which differs from the Prospectus (whether or



not such revised prospectus or prospectus  supplement is required to be filed by
the Company pursuant to Rule 424(b)),  the term "Prospectus" shall also refer to
such revised prospectus or prospectus  supplement,  as the case may be, from and
after  the time it is first  provided  to the  Underwriter  for  such  use.  Any
preliminary  prospectus  or  prospectus  subject to  completion  included in the
Registration  Statement or filed with the Commission  pursuant to Rule 424 under
the Securities Act is hereafter called a "Preliminary Prospectus." Any reference
herein  to  the  Registration  Statement,  any  Preliminary  Prospectus  or  the
Prospectus shall be deemed to refer to and include the documents incorporated by
reference  therein  pursuant  to Item 12 of Form S-3 which were filed  under the
Exchange  Act  (as  defined  below)  on or  before  the  effective  date  of the
Registration  Statement,  the date of such Preliminary Prospectus or the date of
the  Prospectus,  as the case may be,  and any  reference  herein  to the  terms
"amend", "amendment" or "supplement" with respect to the Registration Statement,
any  Preliminary  Prospectus or the  Prospectus  shall be deemed to refer to and
include  (i) the  filing  of any  document  under  the  Exchange  Act  after the
effective  date of the  Registration  Statement,  the  date of such  Preliminary
Prospectus  or the  date  of the  Prospectus,  as the  case  may  be,  which  is
incorporated  therein by  reference  and (ii) any such  document  so filed.  All
references  in this  Agreement to the  Registration  Statement,  the Rule 462(b)
Registration  Statement,  a Preliminary  Prospectus and the  Prospectus,  or any
amendments or supplements to any of the foregoing shall be deemed to include any
copy  thereof  filed  with  the  Commission  pursuant  to  its  Electronic  Data
Gathering, Analysis and Retrieval System ("EDGAR").

     (b) At the time of the  effectiveness of the Registration  Statement or any
Rule 462(b)  Registration  Statement or the effectiveness of any  post-effective
amendment to the Registration Statement, when the Prospectus is first filed with
the  Commission  pursuant  to Rule 424(b) or Rule 434 under the  Securities  Act
("Rule 434"),  when any  supplement  to or amendment of the  Prospectus is filed
with the  Commission,  when any document  filed under the Exchange Act was or is
filed  and at the  Closing  Date and the  Additional  Closing  Date,  if any (as
hereinafter respectively defined), the Registration Statement and the Prospectus
and any amendments  thereof and supplements  thereto  complied or will comply in
all material respects with the applicable  provisions of the Securities Act, the
Exchange Act (as defined  below) and the Rules and  Regulations  and did not and
will not contain an untrue statement of a material fact and did not and will not
omit to state any material  fact  required to be stated  therein or necessary in
order  to make  the  statements  therein  (i) in the  case  of the  Registration
Statement,  not misleading and (ii) in the case of the Prospectus or any related
Preliminary Prospectus in light of the circumstances under which they were made,
not  misleading.  When any  Preliminary  Prospectus  was  first  filed  with the
Commission  (whether  filed  as  part  of the  registration  statement  for  the
registration  of the Shares or any amendment  thereto or pursuant to Rule 424(a)
under the Securities Act) and when any amendment  thereof or supplement  thereto
was  first  filed  with the  Commission,  such  Preliminary  Prospectus  and any
amendments  thereof and supplements  thereto  complied in all material  respects
with the applicable  provisions of the Securities  Act, the Exchange Act and the
Rules and Regulations and did not contain an untrue statement of a material fact
and did not omit to state any  material  fact  required to be stated  therein or
necessary in order to make the statements therein, in light of the circumstances
under which they were made,  not  misleading.  If Rule 434 is used,  the Company
will comply with the  requirements  of Rule 434 and the Prospectus  shall not be
"materially  different,"  as such term is used in Rule 434, from the  Prospectus
included  in the  Registration  Statement  at the time it became  effective.  No
representation  and  warranty  is made in this  subsection  (b),  however,  with
respect  to any  information  contained  in or  omitted  from  the  Registration
Statement  or  the  Prospectus  or any  related  Preliminary  Prospectus  or any
amendment thereof or supplement  thereto in reliance upon and in conformity with
information  furnished  in  writing  to  the  Company  by or on  behalf  of  the
Underwriter specifically for use therein. The parties acknowledge and agree that
such information  provided by or on behalf of the Underwriter consists solely of
the  material  included  in  paragraphs  2,  10,  11 and 12  under  the  caption
"Underwriting" in the Prospectus.

     (c) Deloitte & Touche,  L.L.P, who have certified the financial  statements
and supporting  schedules and  information  of the Company and its  subsidiaries
that are included or  incorporated by reference in the  Registration  Statement,
are  independent  public  accountants  as required by the  Securities  Act,  the
Securities  Exchange Act of 1934, as amended (the "Exchange  Act") and the Rules
and Regulations.

     (d) Subsequent to the respective dates as of which  information is given in
the  Registration  Statement  and the  Prospectus,  except as  disclosed  in the
Registration Statement and the Prospectus, the Company has not declared, paid or
made any  dividends or other  distributions  of any kind on or in respect of its
capital stock and there has been no material  adverse change or any  development
involving a prospective  material  adverse  change,  whether or not arising from
transactions  in the  ordinary  course  of  business,  in or  affecting  (i) the



business,   condition   (financial  or   otherwise),   results  of   operations,
stockholders' equity, properties or prospects of the Company and each subsidiary
of the Company listed on Exhibit A hereto (the "Subsidiaries"),  individually or
taken as a whole; (ii) the long-term debt or capital stock of the Company or any
of its  Subsidiaries;  or (iii) the Offering or consummation of any of the other
transactions  contemplated by this Agreement,  the Registration Statement or the
Prospectus (a "Material Adverse  Change").  Since the date of the latest balance
sheet presented, or incorporated by reference, in the Registration Statement and
the  Prospectus,  neither  the  Company  nor  any  Subsidiary  has  incurred  or
undertaken  any  liabilities  or   obligations,   whether  direct  or  indirect,
liquidated  or   contingent,   matured  or   unmatured,   or  entered  into  any
transactions, including any acquisition or disposition of any business or asset,
which are material to the Company and the Subsidiaries  individually or taken as
a  whole,  except  for  liabilities,  obligations  and  transactions  which  are
disclosed in the Registration Statement and the Prospectus.

     (e) The authorized,  issued and outstanding capital stock of the Company is
as set forth in the  Prospectus in the column headed  "Actual" under the caption
"Capitalization"  and,  after  giving  effect  to the  Offering  and  the  other
transactions  contemplated by this Agreement, the Registration Statement and the
Prospectus,  will be as set forth in the column headed "As  Adjusted"  under the
caption  "Capitalization".  All of the issued and outstanding  shares of capital
stock of the  Company are fully paid and  non-assessable  and have been duly and
validly authorized and issued, in compliance with all applicable state,  federal
and foreign securities laws and not in violation of or subject to any preemptive
or similar right that does or will entitle any person, upon the issuance or sale
of any security,  to acquire from the Company or any Subsidiary any Common Stock
or other security of the Company or any  Subsidiary or any security  convertible
into,  or  exercisable  or  exchangeable  for,  Common  Stock or any other  such
security  (any  "Relevant  Security"),  except for such  rights as may have been
fully  satisfied  or  waived  prior  to the  effectiveness  of the  Registration
Statement.

     (f) The Firm  Shares  have  been  duly and  validly  authorized  and,  when
delivered in accordance  with this  Agreement,  will be duly and validly issued,
fully paid and  non-assessable,  will have been  issued in  compliance  with all
applicable  state,  federal and foreign  securities  laws and will not have been
issued in violation of or subject to any  preemptive  or similar right that does
or will entitle any person to acquire any Relevant  Security from the Company or
any Subsidiary upon issuance or sale of Firm Shares in the Offering.  The Common
Stock and the  Shares  conform  to the  descriptions  thereof  contained  in the
Registration   Statement  and  the  Prospectus.   Except  as  disclosed  in  the
Registration  Statement  and  the  Prospectus,   neither  the  Company  nor  any
Subsidiary  has  outstanding  warrants,  options to purchase,  or any preemptive
rights or other rights to  subscribe  for or to  purchase,  or any  contracts or
commitments to issue or sell, any Relevant Security.

     (g) The  Subsidiaries  are the only  subsidiaries of the Company within the
meaning of Rule 405 under the Securities Act. Except for the Subsidiaries and as
otherwise  disclosed  in the  Registration  Statement  and the  Prospectus,  the
Company holds no ownership or other interest,  nominal or beneficial,  direct or
indirect,  in any  corporation,  partnership,  joint  venture or other  business
entity.  Except as disclosed in the  Registration  Statement and the Prospectus,
all of the issued  shares of capital  stock of or other  ownership  interests in
each Subsidiary  have been duly and validly  authorized and issued and are fully
paid and non-assessable and are owned directly or indirectly by the Company free
and clear of any lien,  charge,  mortgage,  pledge,  security  interest,  claim,
equity,  trust  or  other  encumbrance,   preferential  arrangement,  defect  or
restriction of any kind whatsoever (any "Lien").

     (h) Each of the Company and the  Subsidiaries  has been duly  organized and
validly exists as a corporation,  partnership  or limited  liability  company in
good standing under the laws of its  jurisdiction of  organization.  Each of the
Company and the  Subsidiaries  has all requisite power and authority to carry on
its  business  as it is  currently  being  conducted  and  as  described  in the
Prospectus, and to own, lease and operate its respective properties. Each of the
Company and the  Subsidiaries  is duly  qualified  to do business and is in good
standing as a foreign  corporation,  partnership or limited liability company in
each  jurisdiction in which the character or location of its properties  (owned,
leased or  licensed)  or the  nature  or  conduct  of its  business  makes  such
qualification necessary, except for those failures to be so qualified or in good
standing  which  (individually  and in the  aggregate)  could not  reasonably be
expected  to have a  material  adverse  effect  on (i) the  business,  condition
(financial  or  otherwise),   results  of  operations,   stockholders'   equity,
properties  or prospects of the Company and the  Subsidiaries,  individually  or
taken as a whole; (ii) the long-term debt or capital stock of the Company or any
Subsidiary;  or  (iii)  the  Offering  or  consummation  of  any  of  the  other
transactions  contemplated by this Agreement,  the Registration Statement or the
Prospectus (any such effect being a "Material Adverse Effect").



     (i) Each of the Company and the  Subsidiaries  has all necessary  consents,
approvals,  authorizations,  orders,  registrations,  qualifications,  licenses,
filings and permits of, with and from all judicial,  regulatory  and other legal
or governmental agencies and bodies and all third parties,  foreign and domestic
(collectively,  the  "Consents"),  to own,  lease and operate its properties and
conduct  its  business  as it is now being  conducted  and as  disclosed  in the
Registration Statement and the Prospectus, and each such Consent is valid and in
full force and effect,  and neither the Company nor any  Subsidiary has received
notice of any  investigation  or  proceedings  which  results  in or, if decided
adversely  to the Company or any  Subsidiary,  could  reasonably  be expected to
result  in,  the  revocation  of,  or  imposition  of  a  materially  burdensome
restriction  on, any  Consent.  Each of the Company and the  Subsidiaries  is in
compliance with all applicable laws, rules, regulations, ordinances, directives,
judgments,  decrees and orders, foreign and domestic, except where failure to be
in  compliance  could not  reasonably  be  expected  to have a Material  Adverse
Effect. No Consent contains a materially  burdensome  restriction not adequately
disclosed in the Registration Statement and the Prospectus.

     (j) The Company has full right,  power and authority to execute and deliver
this  Agreement,  to perform its  obligations  hereunder and to  consummate  the
transactions  contemplated by this Agreement, the Registration Statement and the
Prospectus.  This Agreement and the transactions contemplated by this Agreement,
the  Registration  Statement  and the  Prospectus  have  been  duly and  validly
authorized by the Company. This Agreement has been duly and validly executed and
delivered by the Company and constitutes the legal, valid and binding obligation
of  the  Company,   enforceable  in  accordance   with  its  terms,   except  as
enforceability   may  be   limited   by   applicable   bankruptcy,   insolvency,
reorganization, moratorium or similar laws affecting creditors' rights generally
and except as  enforceability  may be subject  to general  principles  of equity
(regardless  of whether such  enforceability  is  considered  in a proceeding in
equity or at law).

     (k)  The  execution,  delivery,  and  performance  of  this  Agreement  and
consummation  of  the   transactions   contemplated   by  this  Agreement,   the
Registration Statement and the Prospectus do not and will not (i) conflict with,
require  consent under or result in a breach of any of the terms and  provisions
of, or  constitute a default (or an event which with notice or lapse of time, or
both, would constitute a default) under, or result in the creation or imposition
of any lien, charge or encumbrance upon any property or assets of the Company or
any  Subsidiary  pursuant  to,  any  indenture,  mortgage,  deed of trust,  loan
agreement or other agreement, instrument,  franchise, license or permit to which
the  Company  or any  Subsidiary  is a party  or by  which  the  Company  or any
Subsidiary or their respective properties,  operations or assets may be bound or
(ii) violate or conflict  with any provision of the  certificate  or articles of
incorporation,  by-laws,  certificate of formation,  limited  liability  company
agreement,  partnership  agreement  or  other  organizational  documents  of the
Company or any  Subsidiary,  or (iii)  violate or conflict  with any law,  rule,
regulation,  ordinance,  directive,  judgment,  decree or order of any judicial,
regulatory or other legal or governmental  agency or body,  domestic or foreign,
except (in the case of clauses (i) and (iii) above) as could not  reasonably  be
expected to have a Material Adverse Effect.

     (l) No Consent of, with or from any judicial,  regulatory or other legal or
governmental agency or body or any third party, foreign or domestic, is required
for the execution, delivery and performance of this Agreement or consummation of
the transactions  contemplated by this Agreement, the Registration Statement and
the  Prospectus,  including the issuance,  sale and delivery of the Shares to be
issued,  sold  and  delivered  hereunder,  except  the  registration  under  the
Securities Act of the Shares,  which has become effective,  and such Consents as
may be required under state securities or blue sky laws or the by-laws and rules
of the National  Association  of Securities  Dealers,  Inc. (the "NASD") or NASD
Regulation,  Inc.  ("NASDR") in connection with the purchase and distribution of
the Shares by the  Underwriter,  each of which has been  obtained and is in full
force and effect.

     (m) Except as disclosed in the  Registration  Statement and the Prospectus,
there  is no  judicial,  regulatory,  arbitral  or other  legal or  governmental
proceeding or other litigation or arbitration,  domestic or foreign,  pending to
which  the  Company  or any  Subsidiary  is a party  or of which  any  property,
operations  or assets of the Company or any  Subsidiary  is the  subject  which,
individually or in the aggregate,  if determined adversely to the Company or any
Subsidiary,  could reasonably be expected to have a Material Adverse Effect;  to
the  best  of  the  Company's  knowledge,  no  such  proceeding,  litigation  or
arbitration  is  threatened  or  contemplated;  and  the  defense  of  all  such
proceedings,  litigation and arbitration against or involving the Company or any
Subsidiary could not reasonably be expected to have a Material Adverse Effect.



     (n) The  financial  statements  and pro  forma  data,  including  the notes
thereto,  and the supporting  schedules included or incorporated by reference in
the  Registration  Statement  and the  Prospectus  present  fairly the financial
position as of the dates  indicated and the cash flows and results of operations
for the periods  specified of the Company and its consolidated  subsidiaries and
the other entities for which  financial  statements are included or incorporated
by  reference  in the  Registration  Statement  and the  Prospectus;  except  as
otherwise  stated  in  the  Registration  Statement  and  the  Prospectus,  said
financial  statements  have been  prepared  in  conformity  with  United  States
generally  accepted   accounting   principles  applied  on  a  consistent  basis
throughout  the  periods  involved;  and the  supporting  schedules  included or
incorporated  by  reference in the  Registration  Statement  and the  Prospectus
present fairly the information required to be stated therein. No other financial
statements  or  supporting   schedules  are  required  to  be  included  in  the
Registration Statement. The other financial and statistical information included
or  incorporated by reference in the  Registration  Statement and the Prospectus
present  fairly the  information  included  therein and have been  prepared on a
basis  consistent  with that of the  financial  statements  that are included or
incorporated by reference in the  Registration  Statement and the Prospectus and
the books and records of the respective entities presented therein.

     (o) There are no pro forma or as adjusted  financial  statements  which are
required  to be  included  or  incorporated  by  reference  in the  Registration
Statement and the  Prospectus in accordance  with  Regulation S-X which have not
been included as so required.


     (p) The statistical,  industry-related  and market-related data included in
the  Registration  Statement  and the  Prospectus  are based on or derived  from
sources which the Company reasonably and in good faith believes are reliable and
accurate, and such data agree with the sources from which they are derived.

     (q) The Company is subject to the reporting  requirements  of Section 13 or
15(d) of the Exchange Act and files  reports  with the  Commission  on the EDGAR
System. The Common Stock is registered pursuant to Section 12(b) of the Exchange
Act and the  outstanding  shares of Common  Stock  (other  than the  Shares) are
listed on the NYSE (as defined in Section 10(b) below) and the Company has taken
no  action  designed  to,  or  likely to have the  effect  of,  terminating  the
registration of the Common Stock under the Exchange Act or de-listing the Common
Stock from the NYSE,  nor has the Company  received  any  notification  that the
Commission  or the  NYSE  is  contemplating  terminating  such  registration  or
listing.

     (r)  The  Company  and the  Subsidiaries  maintain  a  system  of  internal
accounting and other controls  sufficient to provide reasonable  assurances that
(i)  transactions  are  executed  in  accordance  with  management's  general or
specific  authorizations,  (ii) transactions are recorded as necessary to permit
preparation of financial  statements in conformity with United States  generally
accepted accounting principles and to maintain  accountability for assets, (iii)
access to assets is permitted only in accordance  with  management's  general or
specific authorization,  and (iv) the recorded accounting for assets is compared
with existing  assets at reasonable  intervals and  appropriate  action is taken
with respect to any differences.

     (s) Neither the  Company nor any of its  affiliates  (within the meaning of
Rule 144 under the Securities Act) has taken, directly or indirectly, any action
which  constitutes  or is  designed  to  cause or  result  in,  or  which  could
reasonably be expected to constitute,  cause or result in, the  stabilization or
manipulation  of the price of any security to  facilitate  the sale or resale of
the Shares.

     (t)  Neither  Company  nor any of its  affiliates  has,  prior  to the date
hereof, made any offer or sale of any securities which could be "integrated" for
purposes of the Securities Act or the Rules and  Regulations  with the offer and
sale of the Shares pursuant to the Registration  Statement.  Except as disclosed
in the Registration Statement and the Prospectus, neither Company nor any of its
affiliates has sold or issued any Relevant  Security during the six-month period
preceding  the date of the  Prospectus,  including  but not limited to any sales
pursuant to Rule 144A or Regulation D or S under the Securities  Act, other than
shares of Common  Stock issued  pursuant to employee  benefit  plans,  qualified
stock option plans or the employee compensation plans or pursuant to outstanding
options,  rights or warrants as described in the Registration  Statement and the
Prospectus.

     (u) Except as disclosed in the  Registration  Statement and the Prospectus,
no holder of any Relevant Security has any rights to require registration of any
Relevant Security as part or on account of, or



otherwise  in  connection  with,  the offer and sale of the Shares  contemplated
hereby, and any such rights so disclosed have either been fully complied with by
the Company or effectively  waived by the holders thereof,  and any such waivers
remain in full force and effect.

     (v) The  conditions  for use of Form S-3 to register the Offering under the
Securities Act, as set forth in the General Instructions to such Form, have been
satisfied.

     (w) The documents incorporated or deemed to be incorporated by reference in
the  Prospectus,  at the  time  they  were  or  hereafter  are  filed  with  the
Commission,  complied  and  will  comply  in  all  material  respects  with  the
requirements  of the  Securities  Act,  the  Exchange  Act  and  the  Rules  and
Regulations,  and,  when  read  together  with  the  other  information  in  the
Prospectus,  do not contain an untrue  statement  of a material  fact or omit to
state a material  fact  required to be stated  therein or  necessary to make the
statements  therein,  in the light of the  circumstances  under  which they were
made, not misleading.

     (x) The Company is not and, at all times up to and  including  consummation
of the transactions  contemplated by this Agreement,  the Registration Statement
and the  Prospectus,  and after giving effect to application of the net proceeds
of the Offering, will not be, subject to registration as an "investment company"
under the Investment Company Act of 1940, as amended, and is not and will not be
an entity  "controlled"  by an "investment  company"  within the meaning of such
act.

     (y) The Company is not and, at all times up to and  including  consummation
of the transactions  contemplated by this Agreement,  the Registration Statement
and the  Prospectus,  and after giving effect to application of the net proceeds
of the Offering,  will not be,  subject to  regulation as a "public  utility" as
such term is defined under the Public Utility Holding Company Act, as amended.

     (z)  There  are  no  contracts  or  other  documents  (including,   without
limitation,  any voting  agreement),  which are  required to be described in the
Registration   Statement  and  the  Prospectus  or  filed  as  exhibits  to  the
Registration  Statement by the Securities Act, the Exchange Act or the Rules and
Regulations and which have not been so described or filed.

     (aa) No  relationship,  direct or indirect,  exists between or among any of
the Company or any affiliate of the Company,  on the one hand, and any director,
officer,  stockholder,  customer or supplier of the Company or any  affiliate of
the  Company,  on the other hand,  which is required by the  Securities  Act the
Exchange Act or the Rules and  Regulations  to be described in the  Registration
Statement or the Prospectus which is not so described and described as required.
There are no outstanding  loans,  advances  (except normal advances for business
expenses in the ordinary  course of business) or guarantees of  indebtedness  by
the Company to or for the benefit of any of the  officers  or  directors  of the
Company or any of their  respective  family members,  except as disclosed in the
Registration Statement and the Prospectus.  The Company has not, in violation of
the Sarbanes-Oxley Act, directly or indirectly,  including through a Subsidiary,
extended or maintained credit,  arranged for the extension of credit, or renewed
an extension of credit, in the form of a personal loan to or for any director or
executive officer of the Company.

     (bb) Except as disclosed in the Registration  Statement and the Prospectus,
there are no contracts, agreements or understandings between the Company and any
person  that  would  give  rise to a valid  claim  against  the  Company  or the
Underwriter  for a brokerage  commission,  finder's fee or other like payment in
connection  with  the   transactions   contemplated   by  this  Agreement,   the
Registration  Statement and the Prospectus or, to the Company's  knowledge,  any
arrangements, agreements,  understandings,  payments or issuance with respect to
the  Company  or  any  of  its  officers,  directors,  shareholders,   partners,
employees,   Subsidiaries  or  affiliates  that  may  affect  the  Underwriter's
compensation as determined by the NASD.

     (cc) The Company and each  Subsidiary (i) owns or possesses  adequate right
to use all patents, patent applications, trademarks, service marks, trade names,
trademark  registrations,  service  mark  registrations,  copyrights,  licenses,
formulae,   customer  lists,  and  know-how  and  other  intellectual   property
(including trade secrets and other unpatented and/or unpatentable proprietary or
confidential  information,  systems  or  procedures,   "Intellectual  Property")
necessary for the conduct of their respective  businesses as being conducted and
as described  in the  Registration  Statement  and  Prospectus  and (ii) have no
reason to believe that the conduct of their



respective  businesses  does or will  conflict  with,  and have not received any
notice of any claim of conflict with,  any such right of others.  To the best of
the Company's  knowledge,  all material technical  information  developed by and
belonging to the Company or any Subsidiary  which has not been patented has been
kept  confidential.  Neither  the  Company  nor any  Subsidiary  has  granted or
assigned  to  any  other  person  or  entity  any  right  to  manufacture,  have
manufactured,  assemble or sell the current products and services of the Company
and  its   Subsidiaries  or  those  products  and  services   described  in  the
Registration Statement and Prospectus. There is no infringement by third parties
of any such  Intellectual  Property;  there is no pending  or, to the  Company's
knowledge,  threatened action,  suit,  proceeding or claim by others challenging
the  Company's  or  any  Subsidiary's  rights  in or to  any  such  Intellectual
Property,  and the Company is unaware of any facts which would form a reasonable
basis  for any  such  claim;  and  there  is no  pending  or,  to the  Company's
knowledge,  threatened  action,  suit,  proceeding  or claim by others  that the
Company or any Subsidiary infringes or otherwise violates any patent, trademark,
copyright,  trade secret or other proprietary  rights of others, and the Company
is unaware of any other fact which  would form a  reasonable  basis for any such
claim.

     (dd) The Company and the  Subsidiaries  maintain  insurance in such amounts
and covering  such risks as the Company  reasonably  considers  adequate for the
conduct of its business and the value of its  properties and as is customary for
companies  engaged in similar  businesses  in similar  industries,  all of which
insurance is in full force and effect, except where the failure to maintain such
insurance  could not reasonably be expected to have a Material  Adverse  Effect.
There are no  material  claims by the Company or any  Subsidiary  under any such
policy or instrument as to which any insurance  company is denying  liability or
defending under a reservation of rights clause. The Company reasonably  believes
that it will be able to renew its existing  insurance as and when such  coverage
expires or will be able to obtain replacement insurance adequate for the conduct
of the  business  and the  value of its  properties  at a cost  that  could  not
reasonably be expected to have a Material Adverse Effect.

     (ee)  The  Company  has in  effect  insurance  covering  the  Company,  its
directors,  officers and the  Underwriter  for  liabilities or losses arising in
connection with this Offering,  including,  without  limitation,  liabilities or
losses  arising  under the  Securities  Act,  the  Exchange  Act,  the Rules and
Regulations and applicable foreign securities laws.

     (ff) Each of the Company and the Subsidiaries  has accurately  prepared and
timely filed all federal, state, foreign and other tax returns that are required
to be filed by it and has paid or made  provision  for the payment of all taxes,
assessments,   governmental  or  other  similar   charges,   including   without
limitation,  all sales and use taxes  and all  taxes  which the  Company  or any
Subsidiary is obligated to withhold  from amounts owing to employees,  creditors
and third  parties,  with  respect to the  periods  covered by such tax  returns
(whether or not such amounts are shown as due on any tax return).  No deficiency
assessment  with  respect  to a  proposed  adjustment  of the  Company's  or any
Subsidiary' federal, state, local or foreign taxes is pending or, to the best of
the Company's knowledge,  threatened. The accruals and reserves on the books and
records of the Company and the  Subsidiaries  in respect of tax  liabilities for
any taxable period not finally  determined are adequate to meet any  assessments
and related  liabilities  for any such period and,  since December 31, 2002, the
Company and the  Subsidiaries  have not incurred any  liability  for taxes other
than in the  ordinary  course of its  business.  There is no tax  lien,  whether
imposed by any federal,  state,  foreign or other taxing authority,  outstanding
against the assets, properties or business of the Company or any Subsidiary.

     (gg) No labor disturbance by the employees of the Company or any Subsidiary
exists or, to the best of the Company's  knowledge,  is imminent and the Company
is not aware of any existing or imminent labor  disturbances by the employees of
any of its or any Subsidiary's principal suppliers, manufacturers', customers or
contractors,  which, in either case  (individually  or in the aggregate),  could
reasonably be expected to have a Material Adverse Effect.

     (hh) No "prohibited  transaction"  (as defined in either Section 406 of the
Employee  Retirement  Income  Security Act of 1974,  as amended,  including  the
regulations and published  interpretations  thereunder ("ERISA") or Section 4975
of the  Internal  Revenue  Code of  1986,  as  amended  from  time to time  (the
"Code")),  "accumulated funding deficiency" (as defined in Section 302 of ERISA)
or other event of the kind  described  in Section  4043(b) of ERISA  (other than
events with respect to which the 30-day notice requirement under Section 4043 of
ERISA has been  waived) has occurred  with respect to any employee  benefit plan
for which the



Company or any Subsidiary would have any liability which could  (individually or
in the aggregate) reasonably be expected to have a Material Adverse Effect; each
employee  benefit  plan for which the Company or any  Subsidiary  would have any
liability  is in  compliance  in all  material  respects  with  applicable  law,
including (without  limitation) ERISA and the Code; the Company has not incurred
and does not expect to incur  liability  under Title IV of ERISA with respect to
the termination  of, or withdrawal  from any "pension  plan";  and each plan for
which the Company  would have any  liability  that is  intended to be  qualified
under  Section  401(a) of the Code is so  qualified  and nothing  has  occurred,
whether  by action or by  failure  to act,  which  could  cause the loss of such
qualification.

     (ii)  There  has been no  storage,  generation,  transportation,  handling,
treatment,  disposal,  discharge, emission or other release of any kind of toxic
or other  wastes  or other  hazardous  substances  by,  due to, or caused by the
Company or any Subsidiary (or, to the Company's knowledge,  any other entity for
whose acts or omissions the Company is or may be liable) upon any other property
now or previously owned or leased by the Company or any Subsidiary,  or upon any
other  property,  which  would be a violation  of or give rise to any  liability
under any applicable law, rule, regulation,  order,  judgment,  decree or permit
relating  to  pollution  or  protection  of  human  health  and the  environment
("Environmental Law"), except for violations and liabilities which, individually
or in the aggregate, could not reasonably be expected to have a Material Adverse
Effect.  There has been no disposal discharge,  emission or other release of any
kind onto such property or into the environment surrounding such property of any
toxic or other wastes or other  hazardous  substances  with respect to which the
Company or any Subsidiary has knowledge, except as could not, individually or in
the aggregate, reasonably be expected to have a Material Adverse Effect. Neither
the  Company  nor any  Subsidiary  has  agreed to assume,  undertake  or provide
indemnification  for any  liability of any other person under any  Environmental
Law,  including any obligation for cleanup or remedial  action , except as could
not, individually or in the aggregate, reasonably be expected to have a Material
Adverse Effect.  There is no pending or, to the best of the Company's knowledge,
threatened  administrative,  regulatory or judicial  action,  claim or notice of
noncompliance  or  violation,  investigation  or  proceedings  relating  to  any
Environmental Law against the Company or any Subsidiary.

     (jj) Neither the Company,  any Subsidiary nor, to the Company's  knowledge,
any of its  employees  or agents has at any time  during the last five years (i)
made any unlawful contribution to any candidate for foreign office, or failed to
disclose fully any contribution in violation of law, or (ii) made any payment to
any federal or state governmental  officer or official,  or other person charged
with similar  public or  quasi-public  duties,  other than payments  required or
permitted by the laws of the United States of any jurisdiction thereof.

     (kk)  Neither the Company nor any  Subsidiary  (i) is in  violation  of its
certificate  or articles of  incorporation,  by-laws,  certificate of formation,
limited   liability   company   agreement,   partnership   agreement   or  other
organizational  documents,  (ii) is in default under,  and no event has occurred
which, with notice or lapse of time or both, would constitute a default under or
result in the creation or imposition of any lien, charge or encumbrance upon any
of its property or assets pursuant to, any indenture,  mortgage,  deed of trust,
loan  agreement or other  agreement or  instrument  to which it is a party or by
which it is bound or to which any of its  property or assets is subject or (iii)
is in  violation  in  any  respect  of any  law,  rule,  regulation,  ordinance,
directive,  judgment, decree or order of any judicial, regulatory or other legal
or governmental agency or body, foreign or domestic, except (in the case clauses
(ii) and (iii) above)  violations or defaults that could not (individually or in
the  aggregate)  reasonably  be expected to have a Material  Adverse  Effect and
except (in the case of clause  (ii) alone) for any lien,  charge or  encumbrance
disclosed in the Registration Statement and the Prospectus.

     (ll) Except as described in the Prospectus,  as of the date hereof, each of
the Company and its  Subsidiaries  has (A)  generally  satisfactory  or good and
indefeasible  title to all its  interests in its oil and gas  properties,  title
investigations  having  been  carried  out by or on  behalf  of such  person  in
accordance  with good practice in the oil and gas industry in the areas in which
the Company and its subsidiaries  operate and (B) good and indefeasible title to
all other real property and other material  properties  and assets  described in
the Prospectus as owned by the Company or such subsidiary and valid,  subsisting
and enforceable  leases for all of the properties and assets,  real or personal,
described in the  Prospectus  as leased by them,  in each case free and clear of
any security interests,  mortgages,  pledges, liens,  encumbrances or charges of
any kind, other than those described in the Prospectus and those that could not,
individually  or in the  aggregate,  reasonably  be  expected to have a Material
Adverse Effect.

     (mm) Except as described in the Prospectus,  as of the date hereof, (A) all
royalties, rentals, deposits and other amounts due on the oil and gas properties
of the Company and each of its subsidiaries  have



been  properly  and timely  paid,  and no proceeds  from the sale or  production
attributable  to the oil and gas properties of the Company and its  subsidiaries
are currently being held in suspense by any purchaser thereof, except where such
amounts  due could not,  singly or in the  aggregate,  have a  Material  Adverse
Effect and (B) there are no claims under take-or-pay contracts pursuant to which
natural gas  purchasers  have any make-up  rights  affecting the interest of the
Company or its  subsidiaries  in its oil and gas  properties,  except where such
claims could not,  individually  or in the aggregate,  reasonably be expected to
have a Material Adverse Effect.

     (nn) As of the date of this Agreement,  the aggregate undiscounted monetary
liability of the Company and its  subsidiaries  for petroleum  taken or received
under any operating or gas balancing and storage  agreement  relating to its oil
and gas properties  that permits any person to receive cash or other payments to
balance any disproportionate  allocation of petroleum could not, individually or
in the aggregate, reasonably be expected to have a Material Adverse Effect.

     (oo) Holditch-Reservoir  Technologies Consulting Services,  whose report is
referenced in the Prospectus,  was, as of the date of such report, and is, as of
the date hereof, an independent petroleum engineer with respect to the Company.

     (pp)  Netherland,  Sewell & Associates,  Inc, whose report is referenced in
the  Prospectus,  was,  as of the date of such  report,  and is,  as of the date
hereof, an independent petroleum engineer with respect to the Company.

     (qq)  The  Company  is in  compliance  with  applicable  provisions  of the
Sarbanes-Oxley  Act that are  effective  and is actively  taking steps to ensure
that  it  will  be  in  compliance  with  other  applicable  provisions  of  the
Sarbanes-Oxley Act upon the effectiveness of such provisions.

     (rr) The Company has  established  and maintains  "disclosure  controls and
procedures"  (as defined in Rules  13a-14(c) and 15d-14(c) of the Exchange Act);
the Company's  "disclosure  controls and procedures" are reasonably  designed to
ensure that all information  (both financial and  non-financial)  required to be
disclosed  by the  Company in the  reports  that it files or  submits  under the
Exchange Act is recorded,  processed,  summarized  and reported  within the time
periods specified in the Rules and Regulations, and that all such information is
accumulated and communicated to the Company's management as appropriate to allow
timely decisions regarding required disclosure and to make the certifications of
the Chief Executive  Officer and Chief Financial Officer of the Company required
under the Exchange Act with respect to such reports.

     (ss) Since the date of the filing of the  Company's  Annual  Report on Form
10-K for the year ended December 31, 2002, the Company's  auditors and the audit
committee of the board of directors  of the Company (or persons  fulfilling  the
equivalent  function) have not been advised of (i) any significant  deficiencies
in the design or operation of internal controls which could adversely affect the
Company's  ability to record,  process,  summarize and report financial data nor
any material  weaknesses in internal  controls;  (ii) any fraud,  whether or not
material,  that involves  management  or other  employees who have a significant
role in the Company's internal controls.

     (tt) Since the date of the filing of the  Company's  Annual  Report on Form
10-K for the year  ended  December  31,  2002,  there  have been no  significant
changes in internal controls or in other factors that could significantly affect
internal  controls,  including any corrective actions with regard to significant
deficiencies and material weaknesses.

     (uu)  The  section  entitled  "Management's   Discussion  and  Analysis  of
Financial Condition and Results of Operation - Critical Accounting  Policies" in
the Registration Statement and the Prospectus accurately and fully describes (i)
accounting  policies  which the Company  believes are the most  important in the
portrayal of the  financial  condition  and results of operations of the Company
and its consolidated subsidiaries and which require management's most difficult,
subjective or complex judgments ("critical accounting policies"); (ii) judgments
and uncertainties affecting the application of critical accounting policies; and
(iii)  explanation of the likelihood that materially  different amounts would be
reported under different conditions or using different assumptions.



     (vv)  The  Company's  board  of  directors,  senior  management  and  audit
committee  have  reviewed  and  agreed  with  the  selection,   application  and
disclosure of critical  accounting  policies and have consulted with their legal
advisers and independent accountants with regard to such disclosure.

     (ww)  The  section  entitled  "Management's   Discussion  and  Analysis  of
Financial Condition and Results of Operations - Liquidity and Capital Resources"
in the Registration  Statement and the Prospectus accurately and fully describes
(i) all material trends, demands, commitments,  events, uncertainties and risks,
and the potential  effects  thereof,  that the Company believes would materially
affect  liquidity and are reasonably  likely to occur;  and (ii) all off-balance
sheet  arrangements  that have or are  reasonably  likely  to have a current  or
future  effect on the  financial  condition,  changes  in  financial  condition,
revenues or expenses, results of operations,  liquidity, capital expenditures or
capital resources of the Company and the Subsidiaries taken as a whole.

     (xx) Except as disclosed in the Registration and the Prospectus,  there are
no outstanding  guarantees or other contingent obligations of the Company or any
Subsidiary that could reasonably be expected to have a Material Adverse Effect.

     Any certificate  signed by or on behalf of the Company and delivered to the
Underwriter  or  to  counsel  for  the  Underwriter  shall  be  deemed  to  be a
representation  and warranty by the Company to the Underwriter as to the matters
covered thereby.

     2. Representations and Warranties of the Selling  Stockholder.  The Selling
Stockholder represents and warrants to, and agrees with, the Underwriter that:

     (a) This  Agreement  has been duly and  validly  authorized,  executed  and
delivered by or on behalf of the Selling  Stockholder and is a valid and binding
agreement of the Selling Stockholder,  enforceable against it in accordance with
its  terms,   except  as  enforcement  hereof  may  be  limited  by  bankruptcy,
insolvency,  reorganization,  moratorium  or other  similar laws  relating to or
affecting  the  rights  and  remedies  of  creditors  or  by  general  equitable
principles.

     (b) The Selling  Stockholder is the lawful owner of the  Additional  Shares
proposed  to be sold by the  Selling  Stockholder  hereunder  and upon  sale and
delivery of, and payment for, such  Additional  Shares as provided  herein,  the
Selling  Stockholder will convey to the Underwriter good and marketable title to
such  Additional  Shares,  free and clear of all liens,  charges,  encumbrances,
equities, claims and security interests whatsoever.

     (c)  The  Selling  Stockholder  has  good  and  valid  title  to all of the
Additional Shares which may be sold by such Selling Stockholder pursuant to this
Agreement and the legal right and power and capacity, and all authorizations and
approvals  required by law to enter into this  Agreement  to sell,  transfer and
deliver  all  of  the  Additional  Shares  which  may be  sold  by  the  Selling
Stockholder  pursuant to this Agreement and to comply with its other obligations
hereunder.

     (d)  No  consent,  approval,   authorization  or  order  of  any  court  or
governmental  agency  or  body  is  required  for the  execution,  delivery  and
performance by the Selling Stockholder of this Agreement and the consummation by
the Selling Stockholder of the transactions contemplated herein, except (i) such
as may have been obtained under the Securities Act, (ii) such as may be required
under  the state  securities  laws or the blue sky laws or any  jurisdiction  in
connection with the purchase and  distribution of the Shares by the Underwriters
and (iii) such other approvals as have been obtained.

     (e) The  execution,  delivery  and  performance  of this  Agreement  by the
Selling  Stockholder  and the  consummation  by the Selling  Stockholder  of the
transactions  contemplated  hereby or the fulfillment of the terms hereof by the
Selling  Stockholder will not conflict with, result in a breach or violation of,
or  constitute  a default  under any law or the terms of any  indenture or other
agreement or instrument to which the Selling  Stockholder is party or bound,  or
to which any of the  property or assets of the Selling  Stockholder  is subject,
nor will such actions  result in any violation of the  provisions of the charter
or bylaws or  certificate  of  formation  of the  Selling  Stockholder  or,  any
judgment,  order or decree applicable to the Selling Stockholder or any court or



regulatory body,  administrative agency,  governmental body or arbitrator having
jurisdiction over the Selling Stockholder.

     (f) The Selling Stockholder does not have any registration or other similar
rights to have any equity or debt securities  registered for sale by the Company
under the  Registration  Statement or included in the offering of the Additional
Shares, except for such rights as have been waived or which are described in the
Registration Statement and the Prospectus or incorporated by reference therein.

     (g) The Selling  Stockholder does not own any warrants,  options or similar
rights to acquire,  and does not have any right or arrangement  to acquire,  any
capital stock,  right,  warrants,  options or other securities from the Company,
other than those described in the Registration Statement and the Prospectus.

     (h) All information furnished by or on behalf of the Selling Stockholder in
writing for use in the Registration  Statement and Prospectus is true,  correct,
and  complete  in all  material  respects  and does not and will not contain any
untrue  statement of a material  fact;  provided  that this  representation  and
warranty is made only as to information contained in the Registration  Statement
or the Prospectus  under the caption  "Selling  Stockholder" and relating to the
Selling Stockholder.

     (i)  The  Selling  Stockholder  has  reviewed  and  is  familiar  with  the
Registration  Statement  and the  Prospectus  and (i)  has no  knowledge  of any
material  adverse  information  with regard to the  Company or the  Subsidiaries
which is not disclosed in the  Registration  Statement and the  Prospectus,  and
(ii) is not prompted to sell the  Additional  Shares,  if any, to be sold by the
Selling Stockholder by any information  concerning the Company or any Subsidiary
which is not set forth in the Registration Statement and the Prospectus.

     (j) The Selling  Stockholder  has not taken and will not take,  directly or
indirectly,  any action which is designed to or which has  constituted  or which
might  reasonably  be  expected  to  cause or  result  in the  stabilization  or
manipulation  of the price of any security of the Company to facilitate the sale
or resale of the Shares.

     (k) The Selling  Stockholder  has not  distributed and will not distribute,
prior to the Closing  Date,  if any,  and the  completion  of the  Underwriter's
distribution  of the  Shares,  any  offering  material  in  connection  with the
offering  and  sale  of the  Shares  by the  Selling  Stockholder  other  than a
Preliminary Prospectus, the Prospectus or the Registration Statement.

     Any  certificate  signed  by or on behalf of the  Selling  Stockholder  and
delivered to the Underwriter or to counsel for the  Underwriter  shall be deemed
to  be  a  representation  and  warranty  by  the  Selling  Stockholder  to  the
Underwriter as to the matters covered thereby.

     3. Purchase, Sale and Delivery of the Shares.

     (a)  On  the  basis  of  the  representations,  warranties,  covenants  and
agreements herein contained,  but subject to the terms and conditions herein set
forth, the Company agrees to sell to the Underwriter and the Underwriter  agrees
to purchase from the Company,  at a purchase price per share of $22.65, the Firm
Shares.

     (b)  Payment  of the  purchase  price for,  and  delivery  of  certificates
representing,  the Firm  Shares  shall be made at the office of Vinson & Elkins,
L.L.P. , 666 Fifth Avenue, New York, New York, 10103 ("Underwriter's  Counsel"),
or at such  other  place as  shall be  agreed  upon by the  Underwriter  and the
Company,  at 10:00  A.M.,  New York City time,  on August 26, 2003 or such other
time not later than ten business days after such date as shall be agreed upon by
the  Underwriter  and the Company  (such time and date of payment  and  delivery
being herein called the "Closing Date").

     Payment of the  purchase  price for the Firm  Shares  shall be made by wire
transfer in same day funds to or as directed  by the  Company  upon  delivery of
certificates  for the Firm Shares to the  Underwriter  through the facilities of
The Depository  Trust Company for the account of the  Underwriter.  Certificates
for the Firm Shares  shall be  registered  in such name or names and shall be in
such  denominations  as the  Underwriter  may request at



least two  business  days before the Closing  Date.  The Company will permit the
Underwriter to examine and package such  certificates  for delivery at least one
full business day prior to the Closing Date.

     (c) In addition, on the basis of the representations, warranties, covenants
and agreements herein contained,  but subject to the terms and conditions herein
set forth, the Selling  Stockholder  hereby grants to the Underwriter the option
to purchase up to 525,000 Additional Shares at the same purchase price per share
to be paid by the  Underwriter  for the Firm Shares as set forth in Section 2(a)
above,  for the sole  purpose of  covering  over-allotments  in the sale of Firm
Shares by the Underwriter. This option may be exercised at any time, in whole or
in part, on one  occasion,  on or before the thirtieth day following the date of
the  Prospectus,  by written notice from the  Underwriter to the Company and the
Selling  Stockholder.  Such  notice  shall  set forth  the  aggregate  number of
Additional  Shares as to which the  option is being  exercised  and the date and
time, as reasonably  determined by the Underwriter,  when the Additional  Shares
are to be delivered (any such date and time being herein  sometimes  referred to
as the "Additional Closing Date"); provided, however, that no Additional Closing
Date shall occur  earlier  than the Closing Date or earlier than the second full
business  day after the date on which the option shall have been  exercised  nor
later than the eighth full business day after the date on which the option shall
have been exercised.

     (d)  Payment  of the  purchase  price for,  and  delivery  of  certificates
representing, the Additional Shares shall be made at the office of Underwriter's
Counsel,  or at such other place as shall be agreed upon by the  Underwriter and
the Selling  Stockholder,  at 10:00 A.M.,  New York City time, on the Additional
Closing Date, or such other time as shall be agreed upon by the  Underwriter and
the Company.

     Payment of the purchase  price for the  Additional  Shares shall be made by
wire  transfer in same day funds to or as  directed  by the Selling  Stockholder
upon  delivery of  certificates  for the  Additional  Shares to the  Underwriter
through the  facilities of The  Depository  Trust Company for the account of the
Underwriter.  Certificates for the Additional Shares shall be registered in such
name or names and shall be in such  denominations as the Underwriter may request
at least two  business  days before the  Additional  Closing  Date.  The Selling
Stockholder will permit the Underwriter to examine and package such certificates
for  delivery at least one full  business  day prior to the  Additional  Closing
Date.

     4. Offering.  Upon  authorization  of the release of the Firm Shares by the
Underwriter,  the Underwriter propose to offer the Shares for sale to the public
upon the terms and conditions set forth in the Prospectus.

     5.  Covenants of the  Company.  The Company  covenants  and agrees with the
Underwriter that:

     (a)  The  Registration  Statement  and any  amendments  thereto  have  been
declared effective,  and if Rule 430A is used or the filing of the Prospectus is
otherwise  required  under Rule 424(b) or Rule 434,  the  Company  will file the
Prospectus  (properly  completed  if Rule 430A has been used)  pursuant  to Rule
424(b) within the prescribed time period and will provide evidence  satisfactory
to the Underwriter of such timely filing.  If the Company elects to rely on Rule
434,  the  Company  will  prepare and file a term sheet that  complies  with the
requirements of Rule 434, and the Prospectus shall not be "materially different"
(as  such  term is used  in  Rule  434)  from  the  Prospectus  included  in the
Registration Statement at the time it became effective.

     The  Company  will  notify  you  immediately  (and,  if  requested  by  the
Underwriter,  will  confirm  such notice in writing)  (i) when the  Registration
Statement and any amendments  thereto become  effective,  (ii) of any request by
the Commission for any amendment of or supplement to the Registration  Statement
or the  Prospectus  or for any  additional  information,  (iii) of the Company's
intention to file or prepare any  supplement  or  amendment to the  Registration
Statement  or the  Prospectus,  (iv)  of the  mailing  or  the  delivery  to the
Commission  for filing of any  amendment of or  supplement  to the  Registration
Statement or the Prospectus,  including but not limited to Rule 462(b) under the
Securities  Act,  (v) of  the  issuance  by the  Commission  of any  stop  order
suspending the effectiveness of the Registration Statement or any post-effective
amendment thereto or of the initiation,  or the threatening,  of any proceedings
therefor,  it being understood that the Company shall make every effort to avoid
the issuance of any such stop order,  (vi) of the receipt of any  comments  from
the Commission, and (vii) of the receipt by the Company of any notification with
respect to the  suspension  of the  qualification  of the Shares for sale in any



jurisdiction  or the  initiation  or  threatening  of any  proceeding  for  that
purpose.  If the Commission shall propose or enter a stop order at any time, the
Company  will make every  reasonable  effort to prevent the issuance of any such
stop  order  and,  if  issued,  to obtain  the  lifting of such order as soon as
possible.  The Company will not file any amendment to the Registration Statement
or any amendment of or supplement to the  Prospectus  (including  the prospectus
required to be filed  pursuant to Rule 424(b) or Rule 434) that differs from the
prospectus  on  file  at the  time  of  the  effectiveness  of the  Registration
Statement or file any document  under the Exchange Act if such document would be
deemed  to be  incorporated  by  reference  into the  Prospectus  to  which  the
Underwriter  shall object in writing  after being timely  furnished in advance a
copy thereof.  The Company will provide the Underwriter  with copies of all such
amendments, filings and other documents a sufficient time prior to any filing or
other publication thereof to permit the Underwriter a reasonable  opportunity to
review and comment thereon.

     (b) The Company shall comply with the  Securities  Act and the Exchange Act
to permit completion of the distribution as contemplated in this Agreement,  the
Registration  Statement  and the  Prospectus.  If at any time when a  prospectus
relating to the Shares is required to be delivered  under the  Securities Act or
the Exchange Act in  connection  with the sales of Shares,  any event shall have
occurred as a result of which the  Prospectus  as then  amended or  supplemented
would,  in the judgment of the  Underwriter  or the  Company,  include an untrue
statement of a material  fact or omit to state any material  fact required to be
stated therein or necessary to make the statements  therein, in the light of the
circumstances existing at the time of delivery to the purchaser, not misleading,
or if to comply  with the  Securities  Act,  the  Exchange  Act or the Rules and
Regulations  it shall be  necessary  at any  time to  amend  or  supplement  the
Prospectus or Registration  Statement,  or to file any document  incorporated by
reference in the  Registration  Statement or the  Prospectus or in any amendment
thereof or supplement thereto,  the Company will notify you promptly and prepare
and file with the  Commission,  subject to Section 5(a) hereof,  an  appropriate
amendment or supplement (in form and substance  satisfactory to the Underwriter)
which  will  correct  such  statement  or  omission  or which will  effect  such
compliance  and  will  use  its  best  efforts  to  have  any  amendment  to the
Registration Statement declared effective as soon as possible.

     (c) The  Company  will  promptly  deliver to each of you and  Underwriter's
Counsel a signed copy of the Registration  Statement, as initially filed and all
amendments  thereto,  including all consents and exhibits filed  therewith,  and
will maintain in the Company's  files  manually  signed copies of such documents
for at least five years  after the date of filing.  The  Company  will  promptly
deliver to the Underwriter such number of copies of any Preliminary  Prospectus,
the Prospectus, the Registration Statement, all amendments of and supplements to
such  documents,  if any,  and all  documents  incorporated  by reference in the
Registration  Statement and  Prospectus  or any amendment  thereof or supplement
thereto, as you may reasonably  request.  Prior to 10:00 A.M., New York time, on
the business day next  succeeding  the date of this  Agreement  and from time to
time  thereafter,  the Company will furnish the  Underwriter  with copies of the
Prospectus in New York City in such quantities as you may reasonably request.

     (d)  The  Company  consents  to the  use and  delivery  of the  Preliminary
Prospectus by the  Underwriter  in accordance  with Rule 430 and Section 5(b) of
the Securities Act.

     (e) The  Company  will  use its  best  efforts,  in  cooperation  with  the
Underwriter,  at or  prior  to the  time of  effectiveness  of the  Registration
Statement, to qualify the Shares for offering and sale under the securities laws
relating to the offering or sale of the Shares of such  jurisdictions,  domestic
or foreign,  as the Underwriter may designate and to maintain such qualification
in effect for so long as required for the distribution  thereof;  except that in
no event shall the Company be obligated in connection  therewith to qualify as a
foreign corporation or to execute a general consent to service of process.

     (f) The Company will make generally  available to its security  holders and
to the  Underwriter  as soon as  practicable,  but in any event  not later  than
twelve months after the effective date of the Registration Statement (as defined
in Rule 158(c) under the Securities  Act), an earnings  statement of the Company
and the Subsidiaries (which need not be audited) complying with Section 11(a) of
the Securities Act and the Rules and  Regulations  (including,  at the option of
the Company, Rule 158).

     (g) During the period of 90 days from the date of the  Prospectus,  without
the prior written consent of the Underwriter the Company (i) will not,  directly
or indirectly, issue, offer, sell, agree to issue, offer or sell, solicit offers
to purchase, grant any call option, warrant or other right to purchase, purchase
any put



option or other  right to sell,  pledge,  borrow  or  otherwise  dispose  of any
Relevant Security,  or make any announcement of any of the foregoing,  (ii) will
not establish or increase any "put equivalent position" or liquidate or decrease
any "call equivalent position" (in each case within the meaning of Section 16 of
the  Exchange Act and the rules and  regulations  promulgated  thereunder)  with
respect to any Relevant  Security,  and (iii) will not otherwise  enter into any
swap,  derivative or other transaction or arrangement that transfers to another,
in whole  or in part,  any  economic  consequence  of  ownership  of a  Relevant
Security,  whether  or not such  transaction  is to be settled  by  delivery  of
Relevant  Securities,  other securities,  cash or other  consideration;  and the
Company will obtain an undertaking in substantially  the form of Annex IV hereto
of each of its executive  officers and directors,  the Selling  Stockholder  and
Quicksilver  Energy,   L.L.C.  not  to  engage  in  any  of  the  aforementioned
transactions on their own behalf,  other than the sale of Shares as contemplated
by this  Agreement  and the  Company's  issuance  of Common  Stock  upon (i) the
conversion or exchange of convertible or exchangeable  securities outstanding on
the date hereof; (ii) the exercise of currently  outstanding options;  (iii) the
exercise of currently outstanding  warrants;  and (iv) the grant and exercise of
options under,  or the issuance and sale of shares  pursuant to,  employee stock
option plans in effect on the date hereof, each as described in the Registration
Statement and the Prospectus. The Company will not file a registration statement
under the  Securities Act in connection  with any  transaction by the Company or
any person that is prohibited pursuant to the foregoing, except for registration
statements  on Form S-8 relating to employee  benefit plans or Form S-4 relating
to corporate reorganizations or other transactions under Rule 145.

     (h)  During  the  period  of five  years  from  the  effective  date of the
Registration Statement, the Company will furnish to you copies of all reports or
other communications  (financial or other) furnished to security holders or from
time to time published or publicly disseminated by the Company, and will deliver
to you (i) as soon as they  are  available,  copies  of any  reports,  financial
statements  and proxy or information  statements  furnished to or filed with the
Commission or any national  securities exchange on which any class of securities
of the Company is listed;  and (ii) such additional  information  concerning the
business  and  financial  condition  of the Company as you may from time to time
reasonably request (such financial  information to be on a consolidated basis to
the extent the accounts of the Company and the  Subsidiaries are consolidated in
reports furnished to its security holders generally or to the Commission).

     (i) The Company will apply the net proceeds  from the sale of the Shares as
set forth under the caption "Use of Proceeds" in the Prospectus.

     (j) The  Company  will use its best  efforts to list the Shares on the NYSE
and maintain the listing of the Shares on the NYSE.

     (k) The Company,  during the period when the  Prospectus  is required to be
delivered  under the Securities Act or the Exchange Act, will file all documents
required  to be filed with the  Commission  pursuant to the  Securities  Act the
Exchange  Act and the Rules and  Regulations  within the time  periods  required
thereby.

     (l) The  Company  will use its best  efforts to do and  perform  all things
required to be done or performed  under this  Agreement by the Company  prior to
the Closing  Date or the  Additional  Closing  Date,  as the case may be, and to
satisfy  all  conditions  precedent  to the  delivery of the Firm Shares and the
Additional Shares.

     (m) The Company will not take,  and will cause its  affiliates  (within the
meaning  of Rule  144  under  the  Securities  Act)  not to  take,  directly  or
indirectly,  any action which  constitutes or is designed to cause or result in,
or which could  reasonably  be expected to  constitute,  cause or result in, the
stabilization  or  manipulation  of the price of any security to facilitate  the
sale or resale of the Shares.

     6. Payment of Expenses.  Whether or not the  transactions  contemplated  by
this Agreement, the Registration Statement and the Prospectus are consummated or
this  Agreement is  terminated,  the Company  hereby agrees to pay all costs and
expenses incident to the performance of its obligations hereunder, including the
following:  (i) all expenses in connection  with the  preparation,  printing and
filing  of the  Registration  Statement,  any  Preliminary  Prospectus  and  the
Prospectus and any and all amendments  and  supplements  thereto and the mailing
and delivering of copies thereof to the Underwriter and dealers;  (ii) the fees,
disbursements   and  expenses  of  the  Company's  counsel  and  accountants  in
connection with the  registration of the Shares under the Securities Act and



the Offering; (iii) the cost of producing this Agreement and any agreement among
Underwriter,   blue  sky  survey,   closing  documents  and  other  instruments,
agreements or documents (including any compilations  thereof) in connection with
the Offering;  (iv) all expenses in  connection  with the  qualification  of the
Shares for offering and sale under state or foreign  securities or blue sky laws
as provided in Section  5(e) hereof,  including  the fees and  disbursements  of
counsel  for the  Underwriter  in  connection  with  such  qualification  and in
connection  with any blue sky survey;  (v) the filing fees  incident to, and the
fees and  disbursements  of counsel  for the  Underwriter  in  connection  with,
securing any required review by the NASD of the terms of the Offering;  (vi) all
fees and expenses in connection  with listing the Shares on the NYSE;  (vii) all
travel expenses of the Company's officers and employees and any other expense of
the Company  incurred in  connection  with  attending or hosting  meetings  with
prospective  purchasers  of the  Shares;  and  (viii) any stock  transfer  taxes
incurred in connection  with this  Agreement or the  Offering.  The Company also
will  pay or cause to be paid:  (x) the  cost of  preparing  stock  certificates
representing  the  Shares;  (y) the cost and  charges of any  transfer  agent or
registrar for the Shares;  and (z) all other costs and expenses  incident to the
performance of its obligations  hereunder  which are not otherwise  specifically
provided  for in this  Section  6. It is  understood,  however,  that  except as
provided in this Section,  and Sections 8, 9 and 11 hereof, the Underwriter will
pay all of its own costs and  expenses,  including  the fees of its  counsel and
stock  transfer  taxes on  resale of any of the  Shares  by it.  Notwithstanding
anything to the contrary in this Section 6, in the event that this  Agreement is
terminated  pursuant to Section 6 or 11(b)  hereof,  or subsequent to a Material
Adverse  Change,  the  Company  will  pay  all  out-of  pocket  expenses  of the
Underwriter  (including but not limited to fees and  disbursements of counsel to
the Underwriter) incurred in connection herewith.

     7.  Conditions  of  Underwriter's  Obligations.   The  obligations  of  the
Underwriter to purchase and pay for the Firm Shares and the  Additional  Shares,
as provided herein,  shall be subject to the accuracy of the representations and
warranties of the Company and the Selling  Stockholder  herein contained,  as of
the date  hereof and as of the  Closing  Date (for  purposes  of this  Section 7
"Closing  Date"  shall  refer to the  Closing  Date for the Firm  Shares and any
Additional  Closing Date,  if  different,  for the  Additional  Shares),  to the
absence from any certificates, opinions, written statements or letters furnished
to  you  or  to  Underwriter's  Counsel  pursuant  to  this  Section  7  of  any
misstatement  or omission,  to the performance by the Company of its obligations
hereunder, and to each of the following additional conditions:

     (a)  The  Registration  Statement  shall  have  become  effective  and  all
necessary  regulatory  or stock  exchange  approvals  (with the exception of the
listing  requirements  addressed in Section  1(q)) shall have been  received not
later than 5:30 P.M., New York time, on the date of this  Agreement,  or at such
later  time  and  date  as  shall  have  been  consented  to in  writing  by the
Underwriter;  if the Company  shall have  elected to rely upon Rule 430A or Rule
434 under the  Securities  Act,  the  Prospectus  shall have been filed with the
Commission in a timely fashion in accordance with Section 5(a) hereof and a form
of the  Prospectus  containing  information  relating to the  description of the
Shares and the method of distribution  and similar matters shall have been filed
with the Commission  pursuant to Rule 424(b) within the applicable  time period;
and, at or prior to the Closing Date no stop order suspending the  effectiveness
of the Registration Statement or any post-effective amendment thereof shall have
been issued and no proceedings  therefor shall have been initiated or threatened
by the Commission.

     (b) At the Closing Date you shall have received:

          (i)  An opinion,  dated the Closing Date, of Cantey & Hanger,  L.L.P.,
               counsel for the Company,  substantially  in the form set forth in
               Annex I attached hereto.

          (ii) An opinion,  dated the Closing Date of McCarthy  Tetrault  L.L.P,
               Canadian  counsel for the Company,  substantially in the form set
               forth in Annex II attached hereto.

          (iii)An opinion,  dated the Closing  Date of Loomis,  Ewert,  Parsley,
               Davis  &  Gotting,   P.C.,  Michigan  counsel  for  the  Company,
               substantially in the form set forth in Annex III attached hereto.



     (c) All  proceedings  taken in connection  with the sale of the Firm Shares
and the Additional Shares as herein  contemplated  shall be satisfactory in form
and  substance  to  the  Underwriter  and  to  Underwriter's  Counsel,  and  the
Underwriter shall have received from  Underwriter's  Counsel a favorable written
opinion,  dated as of the Closing Date, with respect to the issuance and sale of
the Shares, the Registration Statement and the Prospectus and such other related
matters as the Underwriter may require,  and the Company shall have furnished to
Underwriter's  Counsel  such  documents as they may  reasonably  request for the
purpose of enabling them to pass upon such matters.

     (d) At the Closing Date you shall have received a certificate  of the Chief
Executive Officer and Chief Financial Officer of the Company,  dated the Closing
Date to the effect that (i) the condition  set forth in  subsection  (a) of this
Section 7 has been  satisfied,  (ii) as of the date hereof and as of the Closing
Date, the  representations  and warranties of the Company set forth in Section 1
hereof are accurate, (iii) as of the Closing Date all agreements, conditions and
obligations  of the Company to be  performed  or complied  with  hereunder on or
prior thereto have been duly  performed or complied  with,  (iv) the Company and
the Subsidiaries have not sustained any material loss or interference with their
respective  businesses or properties from fire,  flood,  hurricane,  accident or
other calamity,  whether or not covered by insurance,  or from any labor dispute
or any  legal or  governmental  proceeding,  (v) no stop  order  suspending  the
effectiveness  of the  Registration  Statement or any  post-effective  amendment
thereof has been  issued and no  proceedings  therefor  have been  initiated  or
threatened  by the  Commission,  (vi)  there  are no pro  forma  or as  adjusted
financial  statements  that are  required  to be  included  in the  Registration
Statement and the Prospectus pursuant to the Rules and Regulations that have not
been  included as required and (vii)  subsequent to the  respective  dates as of
which  information  is given in the  Registration  Statement and the  Prospectus
there has not been any material  adverse change or any  development  involving a
prospective material adverse change, whether or not arising from transactions in
the ordinary  course of business,  in or affecting (x) the  business,  condition
(financial  or  otherwise),   results  of  operations,   stockholders'   equity,
properties  or prospects of the Company and the  Subsidiaries,  individually  or
taken as a whole;  (y) the long-term debt or capital stock of the Company or any
of its  Subsidiaries;  or (z) the Offering or  consummation  of any of the other
transactions  contemplated by this Agreement, the Registration Statement and the
Prospectus.

     (e) At the Closing Date you shall have received a certificate  of the Chief
Executive Officer and Chief Financial Officer of the Selling Stockholder,  dated
the  Closing  Date to the  effect  that (i) as of the date  hereof and as of the
Closing Date, the  representations and warranties of the Selling Stockholder set
forth  in  Section  2  hereof  are  accurate,  (ii) as of the  Closing  Date all
agreements,  conditions  and  obligations  of  the  Selling  Stockholder  to  be
performed  or  complied  with  hereunder  on or prior  thereto  have  been  duly
performed or complied with, and (iii)  subsequent to the respective  dates as of
which information is given in the Registration  Statement and the Prospectus the
Selling  Stockholder  is  not  aware  of  any  material  adverse  change  or any
development  involving a prospective  material  adverse  change,  whether or not
arising from  transactions in the ordinary  course of business,  in or affecting
(x) the business,  condition  (financial or  otherwise),  results of operations,
stockholders'   equity,   properties   or  prospects  of  the  Company  and  the
Subsidiaries,  individually  or  taken  as a whole;  (y) the  long-term  debt or
capital stock of the Company or any of its Subsidiaries;  or (z) the Offering or
consummation  of any of the other  transactions  contemplated by this Agreement,
the Registration Statement and the Prospectus.

     (f) At the Closing  Date,  you shall have received a comfort  letter,  from
Deloitte & Touche, L.L.P., independent public accountants for the Company, dated
as of the Closing Date  addressed to the  Underwriter  and in form and substance
satisfactory to the Underwriter and Underwriter' Counsel.

     (g)  Subsequent  to the  execution  and delivery of this  Agreement  or, if
earlier,  the  dates  as of  which  information  is  given  in the  Registration
Statement (exclusive of any amendment thereof) and the Prospectus  (exclusive of
any  supplement  thereto),  there  shall not have been any change in the capital
stock or  long-term  debt of the  Company  or any  Subsidiary  or any  change or
development involving a change,  whether or not arising from transactions in the
ordinary  course  of  business,   in  the  business,   condition  (financial  or
otherwise), results of operations, stockholders' equity, properties or prospects
of the Company and the Subsidiaries, individually or taken as a whole, including
but not limited to the occurrence of any fire, flood, storm, explosion, accident
or other calamity at any of the properties owned or leased by the Company or any
of its Subsidiaries,  the effect of which, in any such case described above, is,
in the  judgment  of the  Underwriter,  so  material  and  adverse as to make it



impracticable  or  inadvisable  to proceed with the Offering on the terms and in
the manner contemplated in the Prospectus (exclusive of any supplement).

     (h) No downgrading  shall have occurred in the Company's  corporate  credit
rating or the rating  accorded the Company's debt  securities or preferred stock
by any "nationally  recognized  statistical rating organization" (as defined for
purposes of Rule 436(g) under the Securities Act) and no such organization shall
have publicly announced that it has under surveillance or review,  with possible
negative implications, its rating of any of the Company's debt securities.

     (i) You shall have received a duly  executed  lock-up  agreement  from each
person who is a  director  or  executive  officer of the  Company,  the  Selling
Stockholder and Quicksilver  Energy,  L.L.C., in each case  substantially in the
form attached hereto as Annex IV.

     (j) At the Closing Date, the Shares shall have been approved for listing on
the NYSE.

     (k) No action  shall have been taken and no statute,  rule,  regulation  or
order  shall  have been  enacted,  adopted  or issued by any  federal,  state or
foreign governmental or regulatory authority that would, as of the Closing Date,
prevent the issuance or sale of the Shares;  and no  injunction  or order of any
federal,  state or foreign  court shall have been  issued that would,  as of the
Closing Date, prevent the issuance or sale of the Shares.

     (l) The Company shall have  furnished  the  Underwriter  and  Underwriter's
Counsel with such other  certificates,  opinions or other  documents as they may
have reasonably requested.

     If any of the  conditions  specified  in this Section 7 shall not have been
fulfilled when and as required by this Agreement, or if any of the certificates,
opinions,  written  statements or letters  furnished to you or to  Underwriter's
Counsel  pursuant  to this  Section  7 shall  not be  satisfactory  in form  and
substance to the Underwriter and to  Underwriter's  Counsel,  all obligations of
the Underwriter hereunder may be cancelled by the Underwriter at, or at any time
prior to, the Closing Date and the  obligations  of the  Underwriter to purchase
the  Additional  Shares may be cancelled by the  Underwriter  at, or at any time
prior to, the  Additional  Closing Date.  Notice of such  cancellation  shall be
given to the Company in writing,  or by  telephone.  Any such  telephone  notice
shall be confirmed promptly thereafter in writing.

     8. Indemnification .

     (a) The Company shall  indemnify and hold harmless the Underwriter and each
person, if any, who controls the Underwriter within the meaning of Section 15 of
the  Securities  Act or  Section 20 of the  Exchange  Act,  against  any and all
losses,  liabilities,  claims,  damages  and  expenses  whatsoever  as  incurred
(including  but not  limited  to  attorneys'  fees  and  any  and  all  expenses
whatsoever  incurred  in  investigating,  preparing  or  defending  against  any
litigation,  commenced or threatened,  or any claim whatsoever,  and any and all
amounts paid in settlement  of any claim or  litigation),  joint or several,  to
which they or any of them may  become  subject  under the  Securities  Act,  the
Exchange Act or otherwise, insofar as such losses, liabilities,  claims, damages
or expenses (or actions in respect  thereof)  arise out of or are based upon (i)
any untrue statement or alleged untrue statement of a material fact contained in
(A) the Registration Statement, as originally filed or any amendment thereof, or
any related  Preliminary  Prospectus  or the  Prospectus,  or in any  supplement
thereto or amendment thereof, or (B) in any materials or information provided to
investors  by, or with the  approval  of,  the  Company in  connection  with the
marketing  of the  offering of the Shares,  including  any road show or investor
presentations   made  to  investors  by  the  Company   (whether  in  person  or
electronically)  ("Marketing  Materials"),  or  (ii)  the  omission  or  alleged
omission to state in the  Registration  Statement,  as  originally  filed or any
amendment thereof, or any related Preliminary  Prospectus or the Prospectus,  or
in any supplement thereto or amendment thereof, or in any Marketing Materials, a
material fact required to be stated  therein or necessary to make the statements
therein not misleading;  provided,  however, that the Company will not be liable
in any such  case to the  extent  but  only to the  extent  that any such  loss,
liability,  claim,  damage or expense  arises out of or is based upon any untrue
statement or alleged  untrue  statement or omission or alleged  omission made in
the Registration Statement, as originally filed or any amendment thereof, or any
related Preliminary  Prospectus or the Prospectus,  or in any supplement thereto
or  amendment  thereof,



in reliance upon and in  conformity  with written  information  furnished to the
Company  by or on behalf  of the  Underwriter  expressly  for use  therein.  The
parties agree that such information  provided by or on behalf of the Underwriter
consists solely of the material referred to in the last sentence of Section 1(b)
hereof.  This indemnity agreement will be in addition to any liability which the
Company may otherwise  have,  including but not limited to other liability under
this Agreement.

     (b) The Underwriter shall indemnify and hold harmless the Company,  each of
the directors of the Company, each of the officers of the Company who shall have
signed the Registration  Statement,  and each other person, if any, who controls
the Company within the meaning of Section 15 of the Securities Act or Section 20
of the  Exchange  Act,  against any  losses,  liabilities,  claims,  damages and
expenses  whatsoever as incurred  (including but not limited to attorneys'  fees
and any and all  expenses  whatsoever  incurred in  investigating,  preparing or
defending  against  any  litigation,  commenced  or  threatened,  or  any  claim
whatsoever,  and  any  and  all  amounts  paid in  settlement  of any  claim  or
litigation),  joint or several,  to which they or any of them may become subject
under the Securities Act, the Exchange Act or otherwise, insofar as such losses,
liabilities,  claims,  damages or expenses (or actions in respect thereof) arise
out of or are based upon any untrue  statement or alleged untrue  statement of a
material fact contained in the  Registration  Statement,  as originally filed or
any amendment thereof, or any related Preliminary  Prospectus or the Prospectus,
or in any amendment thereof or supplement  thereto, or arise out of or are based
upon the omission or alleged  omission to state therein a material fact required
to be stated therein or necessary to make the statements therein not misleading,
in each  case to the  extent,  but  only to the  extent,  that  any  such  loss,
liability,  claim,  damage or  expense  arises  out of or is based upon any such
untrue  statement or alleged  untrue  statement or omission or alleged  omission
made therein in reliance upon and in conformity  with  information  furnished in
writing to the Company by or on behalf of the Underwriter  specifically  for use
therein;  provided,  however, that in no case shall the Underwriter be liable or
responsible for any amount in excess of the underwriting  discount applicable to
the Shares to be purchased by the Underwriter hereunder.  The parties agree that
such information  provided by or on behalf of the Underwriter consists solely of
the  material  referred to in the last  sentence of Section  1(b)  hereof.  This
indemnity  will be in  addition  to any  liability  which  the  Underwriter  may
otherwise  have,  including  but not  limited  to  other  liability  under  this
Agreement.

     (c) Promptly after receipt by an indemnified  party under subsection (a) or
(b) above of  notice  of any  claims or the  commencement  of any  action,  such
indemnified party shall, if a claim in respect thereof is to be made against the
indemnifying  party  under  such  subsection,  notify  each party  against  whom
indemnification  is to be sought  in  writing  of the claim or the  commencement
thereof  (but the failure so to notify an  indemnifying  party shall not relieve
the indemnifying party from any liability which it may have under this Section 8
to the extent that it is not  materially  prejudiced as a result  thereof and in
any event shall not relieve it from any liability that such  indemnifying  party
may have otherwise  than on account of the indemnity  agreement  hereunder).  In
case any such claim or action is brought against any indemnified  party,  and it
notifies an indemnifying  party of the  commencement  thereof,  the indemnifying
party will be entitled to participate, at its own expense in the defense of such
action,  and to the  extent  it may elect by  written  notice  delivered  to the
indemnified  party  promptly  after  receiving  the  aforesaid  notice from such
indemnified  party, to assume the defense  thereof with counsel  satisfactory to
such indemnified party; provided however, that counsel to the indemnifying party
shall not (except  with the written  consent of the  indemnified  party) also be
counsel to the indemnified party. Notwithstanding the foregoing, the indemnified
party or parties  shall have the right to employ its or their own counsel in any
such case,  but the fees and expenses of such counsel shall be at the expense of
such  indemnified  party or parties  unless (i) the  employment  of such counsel
shall have been  authorized  in writing  by one of the  indemnifying  parties in
connection with the defense of such action, (ii) the indemnifying  parties shall
not have employed  counsel to have charge of the defense of such action within a
reasonable  time  after  notice  of  commencement  of  the  action,   (iii)  the
indemnifying party does not diligently defend the action after assumption of the
defense,  or (iv)  such  indemnified  party or  parties  shall  have  reasonably
concluded that there may be defenses available to it or them which are different
from or additional to those available to one or all of the indemnifying  parties
(in which case the  indemnifying  parties shall not have the right to direct the
defense of such action on behalf of the indemnified party or parties), in any of
which events such fees and expenses shall be borne by the indemnifying  parties.
No  indemnifying  party  shall,   without  the  prior  written  consent  of  the
indemnified  parties,  effect any settlement or compromise of, or consent to the
entry  of  judgment   with  respect  to,  any  pending  or   threatened   claim,
investigation,   action  or  proceeding   in  respect  of  which   indemnity  or
contribution may be or could have been sought by an indemnified party under this
Section 8 or Section 9 hereof (whether or not the indemnified party is an actual
or potential party thereto), unless (x) such settlement,  compromise or judgment
(i)  includes  an  unconditional  release  of the  indemnified  party  from  all
liability  arising out of such claim,



investigation,  action or proceeding and (ii) does not include a statement as to
or an admission of fault,  culpability or any failure to act, by or on behalf of
the indemnified  party, and (y) the  indemnifying  party confirms in writing its
indemnification   obligations   hereunder  with  respect  to  such   settlement,
compromise or judgment.

     9.  Contribution.  In order to provide for contribution in circumstances in
which the  indemnification  provided  for in  Section 8 hereof is for any reason
held to be unavailable  from any  indemnifying  party or is insufficient to hold
harmless a party indemnified  thereunder,  the Company and the Underwriter shall
contribute to the aggregate losses, claims, damages, liabilities and expenses of
the  nature  contemplated  by  such  indemnification  provision  (including  any
investigation,  legal and other  expenses  incurred in connection  with, and any
amount paid in  settlement  of, any  action,  suit or  proceeding  or any claims
asserted,  but  after  deducting  in  the  case  of  losses,  claims,   damages,
liabilities and expenses suffered by the Company,  any contribution  received by
the Company from persons, other than the Underwriter, who may also be liable for
contribution,  including  persons who control the Company  within the meaning of
Section 15 of the Securities Act or Section 20 of the Exchange Act,  officers of
the Company who signed the Registration  Statement and directors of the Company)
as incurred to which the Company  and the  Underwriter  may be subject,  in such
proportions as is appropriate to reflect the relative  benefits  received by the
Company and the  Underwriter  from the  Offering or, if such  allocation  is not
permitted by applicable  law, in such  proportions as are appropriate to reflect
not only the relative  benefits referred to above but also the relative fault of
the Company and the  Underwriter in connection  with the statements or omissions
which resulted in such losses, claims, damages, liabilities or expenses, as well
as any other relevant equitable  considerations.  The relative benefits received
by the Company and the Underwriter  shall be deemed to be in the same proportion
as (x) the total proceeds from the Offering (net of  underwriting  discounts and
commissions but before deducting  expenses) received by the Company bears to (y)
the underwriting  discount or commissions  received by the Underwriter,  in each
case as set forth in the table on the cover page of the Prospectus. The relative
fault of each of the  Company  and of the  Underwriter  shall be  determined  by
reference to, among other things, whether the untrue or alleged untrue statement
of a material fact or the omission or alleged  omission to state a material fact
relates  to  information  supplied  by the  Company or the  Underwriter  and the
parties'  relative intent,  knowledge,  access to information and opportunity to
correct or prevent such statement or omission.  The Company and the  Underwriter
further agree that it would not be just and equitable if  contribution  pursuant
to this Section 9 were  determined by pro rata allocation or by any other method
of  allocation  which  does not take  account  of the  equitable  considerations
referred to above in this Section. The aggregate amount of losses,  liabilities,
claims,  damages and expenses  incurred by an indemnified  party and referred to
above in this  Section 9 shall be deemed to include any legal or other  expenses
reasonably  incurred by such indemnified  party in  investigating,  preparing or
defending  against any  litigation,  or any  investigation  or proceeding by any
judicial, regulatory or other legal or governmental agency or body, commenced or
threatened, or any claim whatsoever based upon any such untrue or alleged untrue
statement or omission or alleged  omission.  Notwithstanding  the  provisions of
this Section 9, (i) no Underwriter shall be required to contribute any amount in
excess of the amount by which the  discounts and  commissions  applicable to the
Shares  underwritten  by it and  distributed to the public exceeds the amount of
any damages which such  Underwriter has otherwise been required to pay by reason
of such untrue or alleged untrue  statement or omission or alleged  omission and
(ii) no person  guilty of  fraudulent  misrepresentation  (within the meaning of
Section 10(f) of the Securities Act) shall be entitled to contribution  from any
person who was not guilty of such fraudulent misrepresentation.  For purposes of
this Section 9, each person,  if any,  who  controls an  Underwriter  within the
meaning of Section 15 of the  Securities  Act or Section 20 of the  Exchange Act
shall have the same rights to contribution as such Underwriter, and each person,
if any,  who  controls  the  Company  within  the  meaning  of Section 15 of the
Securities  Act or Section 20 of the Exchange  Act,  each officer of the Company
who shall have  signed  the  Registration  Statement  and each  director  of the
Company shall have the same rights to  contribution  as the Company,  subject in
each case to clauses (i) and (ii) of the  immediately  preceding  sentence.  Any
party  entitled  to  contribution  will,  promptly  after  receipt  of notice of
commencement of any action,  suit or proceeding against such party in respect of
which a claim for  contribution  may be made against  another  party or parties,
notify  each  party or parties  from whom  contribution  may be sought,  but the
omission  to so notify  such party or  parties  shall not  relieve  the party or
parties from whom  contribution may be sought from any obligation it or they may
have under this Section 9 or otherwise.

     10. Survival of Representations  and Agreements.  All  representations  and
warranties,  covenants  and  agreements  of  the  Underwriter  and  the  Company
contained in this Agreement or in certificates of officers of the Company or any
Subsidiary  submitted  pursuant  hereto,  including the agreements  contained in
Section 6, the indemnity  agreements contained in Section 8 and the contribution
agreements  contained in Section 9, shall



remain  operative and in full force and effect  regardless of any  investigation
made by or on behalf of the Underwriter or any controlling  person thereof or by
or on  behalf  of  the  Company,  any  of  its  officers  and  directors  or any
controlling  person thereof,  and shall survive  delivery of and payment for the
Shares to and by the Underwriter. The representations contained in Section 1 and
the agreements contained in Sections 6, 8, 9, 10 and 11 hereof shall survive any
termination  of this  Agreement,  including  termination  pursuant to Section 11
hereof.

     11. Effective Date of Agreement; Termination.

     (a) This  Agreement  shall  become  effective  upon the  execution  of this
Agreement.  Notwithstanding any termination of this Agreement, the provisions of
this  Section 11 and of Sections 1, 6, 8, 9 and 12 through 17  inclusive,  shall
remain in full force and effect at all times after the execution hereof.

     (b) The Underwriter shall have the right to terminate this Agreement at any
time  prior  to  the  Closing  Date  or to  terminate  the  obligations  of  the
Underwriter  to  purchase  the  Additional  Shares  at  any  time  prior  to the
Additional   Closing  Date,  as  the  case  may  be,  if  (i)  any  domestic  or
international  event or act or occurrence  has materially  disrupted,  or in the
opinion of the Underwriter will in the immediate future materially disrupt,  the
market for the Company's securities or securities in general; or (ii) trading on
The New York Stock  Exchange  ("the  NYSE") or The NASDAQ  National  Market (the
"NASDAQ")   shall  have  been   suspended  or  been  made  subject  to  material
limitations,  or minimum or maximum prices for trading shall have been fixed, or
maximum ranges for prices for securities  shall have been required,  on the NYSE
or the NASDAQ or by order of the Commission or any other governmental  authority
having  jurisdiction;  or (iii) a banking  moratorium  has been  declared by any
state or federal authority or if any material  disruption in commercial  banking
or securities  settlement or clearance  services shall have  occurred;  (iv) any
downgrading shall have occurred in the Company's  corporate credit rating or the
rating  accorded the Company's  debt  securities by any  "nationally  recognized
statistical  rating  organization" as that term is defined by the Commission for
purposes of Rule 436(g)(2) under the Securities Act or if any such  organization
shall have publicly  announced that it has under  surveillance  or review,  with
possible  negative  implications,  its  rating  of  any of  the  Company's  debt
securities;  or (v) if there has been  since the time of the  execution  of this
Agreement or since the respective dates as of which  information is given in the
Prospectus  (excluding any supplement thereto),  any Material Adverse Effect, or
(vi) (A) there shall have occurred any outbreak or escalation of  hostilities or
acts of terrorism  involving the United  States or there is a  declaration  of a
national  emergency or war by the United States or (B) there shall have been any
other  calamity  or crisis or any change in  political,  financial  or  economic
conditions if the effect of any such event in (A) or (B), in the judgment of the
Underwriter, makes it impracticable or inadvisable to proceed with the offering,
sale and delivery of the Firm Shares or the Additional  Shares,  as the case may
be, on the terms and in the manner contemplated by the Prospectus.

     (c) Any  notice of  termination  pursuant  to this  Section  11 shall be in
writing.

     (d) If this Agreement shall be terminated pursuant to any of the provisions
hereof (other than pursuant to (i)  notification  by the Underwriter as provided
in Section 11(a) hereof, or if the sale of the Shares provided for herein is not
consummated  because any condition to the  obligations  of the  Underwriter  set
forth herein is not satisfied or because of any refusal, inability or failure on
the part of the  Company  to perform  any  agreement  herein or comply  with any
provision  hereof,  the  Company  will,  subject  to demand by the  Underwriter,
reimburse the Underwriter for all out-of-pocket expenses (including the fees and
expenses of their counsel), incurred by the Underwriter in connection herewith.

     12.  Notices.  All  communications  hereunder,  except as may be  otherwise
specifically provided herein, shall be in writing, and:

     (a) if sent to the Underwriter,  shall be mailed,  delivered,  or faxed and
confirmed in writing,  to such  Underwriter  c/o Bear,  Stearns & Co. Inc.,  383
Madison Avenue,  New York, New York 10179,  Attention:  Stephen  Parish,  Senior
Managing Director,  Equity Capital Markets, with a copy to Underwriter's Counsel
at Vinson &  Elkins,  L.L.P,  666  Fifth  Avenue,  New  York,  New York,  10103,
Attention: Alan Baden;

     (b) if sent to the  Company or the  Selling  Stockholder,  shall be mailed,
delivered,  or faxed and  confirmed  in  writing to the  Company or the  Selling
Stockholder  and its  counsel  at the  addresses  set forth in the  Registration
Statement,  Attention:  Glenn Darden;



provided, however, that any notice to an Underwriter pursuant to Section 8 shall
be delivered or sent by mail or facsimile  transmission  to such  Underwriter at
its address set forth in its  acceptance  facsimile  to the  Underwriter,  which
address  will be  supplied  to any other party  hereto by the  Underwriter  upon
request. Any such notices and other communications shall take effect at the time
of receipt thereof.

     13. Parties. This Agreement shall inure solely to the benefit of, and shall
be binding upon, the Underwriter,  the Company,  the Selling Stockholder and the
controlling persons,  directors,  officers,  employees and agents referred to in
Sections 8 and 9 hereof,  and their  respective  successors and assigns,  and no
other person  shall have or be  construed to have any legal or equitable  right,
remedy or claim  under or in  respect of or by virtue of this  Agreement  or any
provision  herein  contained.  This  Agreement and all conditions and provisions
hereof are  intended  to be for the sole and  exclusive  benefit of the  parties
hereto and said controlling persons and their respective  successors,  officers,
directors, heirs and legal representative,  and it is not for the benefit of any
other person,  firm or corporation.  The term "successors and assigns" shall not
include a purchaser, in its capacity as such, of Shares from the Underwriter.

     14. Governing Law and  Jurisdiction;  Waiver of Jury Trial.  This Agreement
shall be governed by and construed in  accordance  with the laws of the State of
New York. The Company  irrevocably (a) submits to the  jurisdiction of any court
of the State of New York or the United  State  District  Court for the  Southern
District of the State of New York for the purpose of any suit,  action, or other
proceeding  arising  out  of  this  Agreement,  or  any  of  the  agreements  or
transactions  contemplated by this Agreement, the Registration Statement and the
Prospectus (each, a "Proceeding"),  (b) agrees that all claims in respect of any
Proceeding  may be heard and  determined in any such court,  (c) waives,  to the
fullest  extent  permitted by law, any immunity  from  jurisdiction  of any such
court  or from any  legal  process  therein,  (d)  agrees  not to  commence  any
Proceeding  other than in such  courts,  and (e) waives,  to the fullest  extent
permitted by law, any claim that such  Proceeding is brought in an  inconvenient
forum.  THE COMPANY (ON BEHALF OF ITSELF AND, TO THE FULLEST EXTENT PERMITTED BY
LAW, ON BEHALF OF ITS RESPECTIVE EQUITY HOLDERS AND CREDITORS) HEREBY WAIVES ANY
RIGHT IT MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY CLAIM BASED UPON, ARISING
OUT OF OR IN CONNECTION WITH THIS AGREEMENT AND THE TRANSACTIONS CONTEMPLATED BY
THIS AGREEMENT, THE REGISTRATION STATEMENT AND THE PROSPECTUS.

     15.  Counterparts.  This  Agreement  may  be  executed  in  any  number  of
counterparts,  each of which  shall be  deemed to be an  original,  but all such
counterparts shall together constitute one and the same instrument.  Delivery of
a  signed  counterpart  of  this  Agreement  by  facsimile   transmission  shall
constitute valid and sufficient delivery thereof.

     16. Headings. The headings herein are inserted for convenience of reference
only  and  are  not  intended  to be  part  of,  or to  affect  the  meaning  or
interpretation of, this Agreement.

     17. Time is of the Essence. Time shall be of the essence of this Agreement.
As used herein, the term "business day" shall mean any day when the Commission's
office in Washington, D.C. is open for business.

                            [signature page follows]



     If the  foregoing  correctly  sets  forth  your  understanding,  please  so
indicate in the space  provided  below for that purpose,  whereupon  this letter
shall constitute a binding agreement among us. Very truly yours,

                                    QUICKSILVER RESOURCES INC.



                                    By:       /s/ Bill M.Lamkin
                                        ----------------------------
                                        Name: Bill M. Lamkin
                                        Title:Executive Vice President and Chief
                                              Financial Officer

                                     MERCURY EXPLORATION COMPANY



                                     By:     /s/ Anne Darden Self
                                        --------------------------------
                                        Name: Anne Darden Self
                                        Title:President

Accepted as of the date first above written

BEAR, STEARNS & CO. INC.




By:         /s/ Stephen M. Straty
     --------------------------------------
     Name:   Stephen M. Straty
     Title:  Senior Managing Director



                                    EXHIBIT A

                                  Subsidiaries

Direct Subsidiaries:

MGV Energy Inc.
Mercury Michigan, Inc.
Beaver Creek Pipeline, L.L.C. (50% interest owned)
Cinnabar Energy Services & Trading, LLC (50% interest owned)
Terra Energy Ltd.
GTG Pipeline Corporation

Direct Subsidiaries of Terra Energy Ltd.:

Energy Acquisition Operating Corporation
Kristen Corporation
Terra Pipeline Company

Direct Subsidiaries of Mercury Michigan, Inc.:

Beaver Creek Pipeline, L.L.C.
Cinnabar Energy Services & Trading, LLC

Direct Subsidiaries of Beaver Creek Pipeline, L.L.C.:

Saginaw Bay Lateral, LP (54% interest owned)

Non Wholly-Owned Subsidiaries:

Terra Hayes Pipeline Company (45.85% interest owned)
Voyager Compression Services, L.L.C. (65% interest owned)



                                     ANNEX I

                       Form of Opinion of Company Counsel

     1. Each of the Company and its  Subsidiaries  has been duly  organized  and
validly exists as a  corporation,  limited  liability  company or partnership in
good  standing  under  the  laws  of  its   jurisdiction  of   incorporation  or
organization,  with full  corporate,  limited  liability  company or partnership
power and authority to own its  properties and conduct its business as described
in the  Registration  Statement and the Prospectus.  Each of the Company and its
Subsidiaries  is duly  qualified and in good standing as a foreign  corporation,
limited  liability  company or  partnership  in each  jurisdiction  in which the
character  or location of its  properties  (owned,  leased or  licensed)  or the
nature or conduct of its business makes such qualification necessary, except for
those  failures to be so  qualified  or in good  standing  which will not in the
aggregate have a Material Adverse Effect.

     2.  The  Company  has an  authorized  capitalization  as set  forth  in the
Registration  Statement and the Prospectus.  All of the issued shares of capital
stock of the Company have been duly and validly authorized and issued, are fully
paid and non-assessable and are not in violation of or subject to any preemptive
or, to the best of such counsel's knowledge, similar rights that entitle or will
entitle any person to acquire any Shares from the Company upon  issuance or sale
thereof.  The Shares to be  delivered  on the  Closing  Date and the  Additional
Closing Date, if any, have been duly and validly  authorized and, when delivered
in accordance with the Underwriting Agreement,  will be duly and validly issued,
fully paid and  non-assessable  and will not have been issued in violation of or
subject  to  preemptive  or, to the best of such  counsel's  knowledge,  similar
rights  that  entitle or will  entitle any person to acquire any Shares from the
Company upon issuance or sale thereof. All of the issued shares of capital stock
of each  Subsidiary  of the Company  have been duly and validly  authorized  and
issued  and are  fully  paid  and  non-assessable  and  are  owned  directly  or
indirectly  by the  Company,  free and clear of all Liens except as disclosed in
the Registration Statement or the Prospectus.  The Common Stock, the Firm Shares
and the Additional  Shares conform to the descriptions  thereof contained in the
Registration Statement and the Prospectus.

     3. The Common Stock  currently  outstanding  is listed,  and the Shares are
duly authorized for listing on the New York Stock Exchange.

     4. The  Underwriting  Agreement  has  been  duly  and  validly  authorized,
executed  and  delivered  by the Company and  constitutes  the legal,  valid and
binding  obligation of the Company,  enforceable  in accordance  with its terms,
except as enforceability  may be limited by applicable  bankruptcy,  insolvency,
reorganization, moratorium or similar laws affecting creditors' rights generally
and except as  enforceability  may be subject  to general  principles  of equity
(regardless  of whether such  enforceability  is  considered  in a proceeding in
equity or at law).

     5. To the best of such  counsel's  knowledge and other than as set forth in
the Prospectus, there are no judicial, regulatory or other legal or governmental
proceedings  pending to which the Company or any of its  Subsidiaries is a party
or of which  any  property  of the  Company  or any of its  Subsidiaries  is the
subject  which,   if  determined   adversely  to  the  Company  or  any  of  its
Subsidiaries,  would  individually  or in the aggregate have a Material  Adverse
Effect;  and, to the best of such counsel's  knowledge,  no such proceedings are
threatened or contemplated.

     6. The execution,  delivery,  and performance of the Underwriting Agreement
and consummation of the transactions contemplated by Underwriting Agreement, the
Registration  Statement and the Prospectus do not and will not (A) conflict with
or result in a breach of any of the terms and  provisions  of, or  constitute  a
default  (or an event  which  with  notice  or lapse  of  time,  or both,  would
constitute  a default)  under,  or result in the creation or  imposition  of any
lien, charge or encumbrance upon any property or assets of the Company or any of
its  Subsidiaries  pursuant to, any  indenture,  mortgage,  deed of trust,  loan
agreement or any other agreement, instrument, franchise, license or permit known
to such counsel to which the Company or any of its Subsidiaries is a party or by
which  any  of the  Company  or any of  its  Subsidiaries  or  their  respective
properties  or assets may be bound or (B) violate or conflict with any provision
of the  certificate  of  incorporation  or by-laws of the  Company or any of its
Subsidiaries,  or, to the best knowledge of such counsel, any judgment,  decree,
order, statute,  rule or regulation of any court or any judicial,  regulatory or
other legal or governmental agency or body.



     7.  No  consent,  approval,  authorization,  order,  registration,  filing,
qualification,  license  or  permit  of or  with  any  court  or  any  judicial,
regulatory  or other legal or  governmental  agency or body is required  for the
execution,  delivery and  performance of this Agreement or  consummation  of the
transactions  contemplated  by  the  Underwriting  Agreement,  the  Registration
Statement and the Prospectus, except for (1) such as may be required under state
securities or blue sky laws in connection with the purchase and  distribution of
the  Shares  by the  Underwriter  (as to which  such  counsel  need  express  no
opinion),  (2) such as have been made or obtained  under the  Securities Act and
(3) such as are required by the NASD.

     8. The Registration Statement and the Prospectus and any amendments thereof
or supplements  thereto  (other than the financial  statements and schedules and
other financial data included or incorporated by reference therein,  as to which
no opinion need be rendered) comply as to form in all material respects with the
requirements  of the  Securities  Act,  the  Exchange  Act  and  the  Rules  and
Regulations.  The  documents  filed under the Exchange Act and  incorporated  by
reference in the  Registration  Statement  and the  Prospectus  or any amendment
thereof or supplement thereto (other than the financial statements and schedules
and other financial data included or incorporated  by reference  therein,  as to
which no opinion need be rendered) when they became effective or were filed with
the Commission, as the case may be, complied as to form in all material respects
with the Securities  Act or the Exchange Act, as  applicable,  and the Rules and
Regulations.

     9. The  statements  under the caption  "Description  of Capital  Stock" and
"Underwriting"  in  the  Prospectus  and  Items  14  and  15 of  Part  II of the
Registration  Statement,  insofar as such statements constitute a summary of the
legal matters,  documents or proceedings referred to therein, fairly present the
information  called  for with  respect  to such  legal  matters,  documents  and
proceedings.

     10. The Company is not and, after giving effect to the offering and sale of
the Shares and the  application  of the  proceeds  thereof as  described  in the
Registration Statement and the Prospectus,  will not be, an "investment company"
as such term is defined in the Investment Company Act of 1940, as amended.

     11. The Company is not and, at all times up to and  including  consummation
of the transactions  contemplated by this Agreement,  the Registration Statement
and the  Prospectus,  and after giving effect to application of the net proceeds
of the Offering,  will not be,  subject to  regulation as a "public  utility" as
such term is defined under the Public Utility Holding Company Act, as amended.

     12. The Registration  Statement is effective under the Securities Act, and,
to  the  best  knowledge  of  such  counsel,   no  stop  order   suspending  the
effectiveness  of the  Registration  Statement or any  post-effective  amendment
thereof has been  issued and no  proceedings  therefor  have been  initiated  or
threatened by the  Commission  and all filings  required by Rule 424(b) and Rule
430A under the Securities Act have been made.

     13. The Company has full right,  power and authority to execute and deliver
this Agreement and the Shares and to perform its obligations hereunder,  and all
corporate  action  required  to be taken for the due and  proper  authorization,
execution and delivery of this Agreement and the Shares and  consummation of the
transactions  contemplated by Underwriting Agreement, the Registration Statement
and the  Prospectus  and as  described  in the  Registration  Statement  and the
Prospectus have been duly and validly taken.

     14. To the best  knowledge  of such  counsel,  no contract or  agreement is
required to be filed as an exhibit to the Registration  Statement that is not so
filed.

     15. Neither the Company nor any of its  Subsidiaries is in violation of its
respective charter or by-laws and, to the best of such counsel's knowledge after
due inquiry,  neither the Company nor any of its  Subsidiaries  is in default in
the performance of any obligation, agreement, covenant or condition contained in
any indenture, loan agreement,  mortgage, lease or other agreement or instrument
that is material to the Company and its Subsidiaries, individually or taken as a
whole,  to which the Company or any of its  Subsidiaries  is a party or by which
the Company or any of its Subsidiaries or their respective property is bound.

     In addition,  such opinion shall also contain a statement that such counsel
has  participated  in  conferences  with  officers  and  representatives  of the
Company,  representatives  of the independent public accountants for the Company
and the Underwriter at which the contents and the Prospectus and related matters
were  discussed  and, no facts have come to the  attention of such counsel which
would lead such counsel to believe that either the



Registration   Statement,  at  the  time  it  became  effective  (including  the
information  deemed  to be part of the  Registration  Statement  at the  time of
effectiveness  pursuant  to Rule  430A(b) or Rule 434,  if  applicable),  or any
amendment  thereof  made  prior  to the  Closing  Date,  as of the  date of such
amendment,  contained or  incorporated  by reference  any untrue  statement of a
material  fact or  omitted  to state any  material  fact  required  to be stated
therein or necessary to make the  statements  therein not misleading or that the
Prospectus  (including the documents  incorporated by reference therein),  as of
its date (or any  amendment  thereof  or  supplement  thereto  made prior to the
Closing  Date as of the  date of such  amendment  or  supplement)  and as of the
Closing  Date,  contained or contains an untrue  statement of a material fact or
omitted or omits to state any  material  fact  required to be stated  therein or
necessary to make the statements  therein,  in light of the circumstances  under
which they were made, not misleading (it being understood that such counsel need
express  no belief or  opinion  with  respect to the  financial  statements  and
schedules  and other  financial  data  included  or  incorporated  by  reference
therein).



                                    ANNEX II

                       Form of Opinion of Canadian Counsel

     (i) MGV Energy Inc.  ("MGV") is duly organized,  validly  existing,  and in
good  standing  under  the  laws  of  the  Province  of  Alberta,  and  has  the
organizational power and authority to own or lease its properties and to conduct
its business as described in the Prospectus.

     (ii) MGV is duly  qualified to do business  and is in good  standing in all
jurisdictions where it is required to be so qualified,  except where the failure
to be so qualified  would not  individually  or in the aggregate have a Material
Adverse Effect.

     (iii) Except for MGV exchangeable shares referred to in the Prospectus, all
of the issued and outstanding  shares of capital stock of MGV have been duly and
validly authorized and issued, are fully paid and non-assessable  and, are owned
by  the  Company,  free  and  clear  of  any  security  interest,  claim,  lien,
encumbrance or adverse  interest of any nature,  of which such counsel is aware.
To such counsel's  knowledge,  there are no outstanding  options,  warrants,  or
other rights to acquire capital stock or other equity securities of MGV.



                                    ANNEX III

                       Form of Opinion of Michigan Counsel

     (i) Each of __________ [the Company's Michigan subsidiaries] (the "Michigan
Subsidiaries") is duly organized,  validly existing,  and in good standing under
the  laws  of the  State  of  Michigan,  and has the  organizational  power  and
authority  to own or  lease  its  properties  and to  conduct  its  business  as
described in the Prospectus.

     (ii) Each of the Michigan Subsidiaries is duly qualified to do business and
is  in  good  standing  in  all  jurisdictions  where  it is  required  to be so
qualified, except where the failure to be so qualified would not individually or
in the aggregate have a Material Adverse Effect.

     (iii)  Except  as  disclosed  in the  Prospectus,  all of  the  issued  and
outstanding shares of capital stock (or any limited liability company interests,
as the case may be) of the  Michigan  Subsidiaries  have been  duly and  validly
authorized and issued,  are fully paid and  nonassessable  and, are owned by the
Company,  free and clear of any security interest,  claim, lien,  encumbrance or
adverse  interest  of any  nature.  To such  counsel's  knowledge,  there are no
outstanding options, warrants, or other rights to acquire capital stock or other
equity securities of any of the Michigan Subsidiaries.



                                    ANNEX IV

                            Form of Lock-Up Agreement

                                 August 20, 2003

Bear, Stearns & Co. Inc.
383 Madison Avenue
New York, New York 10179
Attention: Equity Capital Markets

                  Quicksilver Resources Inc. Lock-Up Agreement

Ladies and Gentlemen:

     In  consideration  of the  agreement  of  Bear,  Stearns  & Co.  Inc.  (the
"Underwriter") to purchase from Quicksilver Resources Inc. (the "Company") up to
3,500,000  shares  of  common  stock  of  the  Company  ("Common   Stock"),   as
contemplated  by a  Prospectus  Supplement  relating  to the  Common  Stock (the
"Prospectus Supplement"), the undersigned hereby agrees that, for a period of 90
days after the date of the Prospectus  Supplement  (the "Lock-Up  Period"),  the
undersigned will not offer, sell,  contract to sell, pledge or otherwise dispose
of, directly or indirectly,  (a) any shares of Common Stock or any other capital
stock of the Company or (b) any other securities which are convertible  into, or
exercisable  or  exchangeable  for,  Common Stock or other  capital stock of the
Company, or publicly disclose the intention to make any such offer, sale, pledge
or  disposition,  in any such case  without  the prior  written  consent  of the
Underwriter.  Such  agreement  will not prevent  (i) the  exercise of options to
purchase shares of Common Stock pursuant to employee stock option plans existing
on the date of the  Prospectus  Supplement,  (ii) the exercise or  conversion of
securities  that are  outstanding on the date of the  Prospectus  Supplement and
(iii) bona fide  gifts of shares of Common  Stock so long as the  transferee  of
such shares of Common  Stock  agrees with the  Underwriter  (as  evidenced  by a
signed  letter to the  Underwriter)  not to sell or  otherwise  dispose  of such
shares of  Common  Stock  during  the  period  of 90 days  after the date of the
Prospectus Supplement.

     The undersigned  hereby authorizes the Company during the Lock-Up Period to
cause any transfer agent for the Relevant Securities to decline to transfer, and
to note stop  transfer  restrictions  on the stock  register  and other  records
relating to, Relevant  Securities for which the undersigned is the record holder
and,  in the case of  Relevant  Securities  for  which  the  undersigned  is the
beneficial but not the record holder,  agrees during the Lock-Up Period to cause
the record holder to cause the relevant  transfer  agent to decline to transfer,
and to note stop transfer  restrictions  on the stock register and other records
relating to, such Relevant  Securities.  The  undersigned  hereby further agrees
that,  without the prior written consent of The Underwriter,  during the Lock-up
Period the  undersigned  (x) will not file or participate in the filing with the
Securities and Exchange Commission of any registration  statement,  or circulate
or participate  in the  circulation  of any  preliminary or final  prospectus or
other  disclosure  document  with respect to any proposed  offering or sale of a
Relevant  Security and (y) will not exercise any rights the undersigned may have
to require  registration  with the  Securities  and Exchange  Commission  of any
proposed offering or sale of a Relevant Security.

     The  undersigned  hereby  represents and warrants that the  undersigned has
full  power and  authority  to enter  into this  Agreement.  Upon  request,  the
undersigned will execute any additional  documents  necessary in connection with
enforcement hereof. Any obligations of the undersigned shall be binding upon the
successors and assigns of the undersigned from the date first above written.

     This  Agreement  shall be governed by and construed in accordance  with the
laws of the  State of New  York.  Delivery  of a signed  copy of this  letter by
facsimile transmission shall be effective as delivery of the original hereof.

                                    Very truly yours,

                                    By:  _______________________________________

                                    Print Name: ________________________________