SCHEDULE 14A INFORMATION
Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934
                                (Amendment No. )

Filed by the Registrant [X]
Filed by a party other than the Registrant [ ]

Check the appropriate box:

[ ]   Preliminary proxy statement.
[ ]   Confidential, for use of the Commission only (as permitted by Rule
      14a-6(e)(2)).
[X]   Definitive proxy statement.
[ ]   Definitive additional materials.
[ ]   Soliciting material under Rule 14a-12.

                              WILLBROS GROUP, INC.
                ------------------------------------------------
                (Name of Registrant as Specified In Its Charter)

                                 Not Applicable
     -----------------------------------------------------------------------
     (Name of Person(s) Filing Proxy Statement if Other Than the Registrant)

Payment of filing fee (check the appropriate box):

[X]   No fee required.
[ ]   Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.

      (1)   Title of each class of securities to which transaction applies:
            ____________________________________________________________________

      (2)   Aggregate number of securities to which transaction applies:
            ____________________________________________________________________

      (3)   Per unit price or other underlying value of transaction computed
            pursuant to Exchange Act Rule 0-11 (set forth the amount on which
            the filing fee is calculated and state how it was determined):
            ____________________________________________________________________

      (4)   Proposed maximum aggregate value of transaction:
            ____________________________________________________________________

      (5)   Total fee paid: ____________________________________________________

[ ]   Fee paid previously with preliminary materials.
[ ]   Check box if any part of the fee is offset as provided by Exchange Act
      Rule 0-11(a)(2) and identify the filing for which the offsetting fee was
      paid previously. Identify the previous filing by registration statement
      number, or the form or schedule and the date of its filing.

      (1)   Amount Previously Paid: ____________________________________________

      (2)   Form, Schedule or Registration Statement No.:_______________________

      (3)   Filing Party:_______________________________________________________

      (4)   Date Filed:_________________________________________________________


[LOGO]                        WILLBROS GROUP, INC.
                               PLAZA 2000 BUILDING
                             50TH STREET, 8TH FLOOR
                              P. O. BOX 0816-01098
                           PANAMA, REPUBLIC OF PANAMA

                    NOTICE OF ANNUAL MEETING OF STOCKHOLDERS
                           TO BE HELD FEBRUARY 1, 2006

To the Stockholders of
WILLBROS GROUP, INC.:

      NOTICE IS HEREBY GIVEN that the 2005 Annual Meeting of Stockholders of
Willbros Group, Inc., a Republic of Panama corporation (the "Company"), will be
held at the Panama Marriott Hotel, Calle 52 y Ricardo Arias - Area Bancaria,
Panama City, Panama, on February 1, 2006, at 9:00 a.m., local time, for the
following purposes:

      1.    To elect two directors of the Company to Class III for three-year
            terms; and

      2.    To transact such other business as may properly come before the
            meeting or any adjournment thereof.

      The Board of Directors has fixed the close of business on December 15,
2005, as the record date for the meeting, and only holders of the Company's
Common Stock of record at such time will be entitled to vote at the meeting or
any adjournment thereof.

                                            By Order of the Board of Directors,

                                            Dennis G. Berryhill
                                            Secretary

Panama City, Panama
December 28, 2005

IT IS IMPORTANT THAT YOUR SHARES BE REPRESENTED AT THE MEETING. WHETHER OR NOT
YOU PLAN TO ATTEND THE MEETING, PLEASE MARK, SIGN, DATE, AND RETURN THE
ACCOMPANYING PROXY IN THE ENCLOSED ENVELOPE. IF YOU DO ATTEND THE MEETING, YOU
MAY WITHDRAW YOUR PROXY AND VOTE IN PERSON.



[LOGO]                         WILLBROS GROUP, INC.
                               PLAZA 2000 BUILDING
                             50TH STREET, 8TH FLOOR
                              P. O. BOX 0816-01098
                           PANAMA, REPUBLIC OF PANAMA

                                 PROXY STATEMENT
                       FOR ANNUAL MEETING OF STOCKHOLDERS
                           TO BE HELD FEBRUARY 1, 2006

                     SOLICITATION AND REVOCATION OF PROXIES

      This Proxy Statement is furnished in connection with the solicitation by
the Board of Directors of Willbros Group, Inc., a Republic of Panama corporation
(the "Company"), of proxies to be voted at the 2005 Annual Meeting of
Stockholders of the Company to be held on February 1, 2006, or at any
adjournment thereof (the "Annual Meeting"), for the purposes set forth in the
accompanying Notice of Annual Meeting. This Proxy Statement and accompanying
proxy were first sent on or about December 28, 2005, to stockholders of record
on December 15, 2005.

      If the accompanying proxy is properly executed and returned, the shares
represented by the proxy will be voted at the Annual Meeting. If a stockholder
indicates in his or her proxy a choice with respect to any matter to be acted
upon, that stockholder's shares will be voted in accordance with such choice. If
no choice is indicated, such shares will be voted "FOR" the election of all of
the nominees for directors listed below. A stockholder giving a proxy may revoke
it by giving written notice of revocation to the Secretary of the Company at any
time before it is voted, by executing another valid proxy bearing a later date
and delivering such proxy to the Secretary of the Company prior to or at the
Annual Meeting, or by attending the Annual Meeting and voting in person.

      The expenses of this proxy solicitation, including the cost of preparing
and mailing this Proxy Statement and accompanying proxy, will be borne by the
Company. Such expenses will also include the charges and expenses of banks,
brokerage firms and other custodians, nominees or fiduciaries for forwarding
solicitation material regarding the Annual Meeting to beneficial owners of the
Company's Common Stock. Solicitation of proxies may be made by mail, telephone,
personal interviews or by other means by the Board of Directors or employees of
the Company who will not be additionally compensated therefor, but who may be
reimbursed for their out-of-pocket expenses in connection therewith.

                          STOCKHOLDERS ENTITLED TO VOTE

      Stockholders of record at the close of business on December 15, 2005, will
be entitled to vote at the Annual Meeting. As of December 15, 2005, there were
issued and outstanding 21,550,612 shares of Common Stock, par value $.05 per
share, of the Company (the "Common Stock"). Each share of Common Stock is
entitled to one vote. There is no cumulative voting with respect to the election
of directors. The presence in person or by proxy of the holders of a majority of
the shares issued and outstanding at the Annual Meeting and entitled to vote
will constitute a quorum for the transaction of business. Votes withheld from
nominees for directors, abstentions, and broker non-votes will be counted for
purposes of determining whether a quorum has been reached. Votes will be
tabulated by an inspector of election appointed by the Board of Directors of the
Company. With regard to the election of directors, votes may be cast in favor of
or withheld from each nominee; votes that are withheld will have the effect of a
negative vote. Abstentions, which may be specified on all proposals, if any,
except the election of directors, will have the effect of a negative vote. A
broker non-vote will have no effect on the outcome of the election of directors.


                                  PROPOSAL ONE

                              ELECTION OF DIRECTORS

      The Restated Articles of Incorporation of the Company (the "Charter")
provides that the Board of Directors of the Company (the "Board of Directors")
shall consist of not less than three nor more than fifteen directors, as
determined from time to time by resolution of the Board of Directors. The number
of directors is currently fixed at nine. The Board of Directors is divided into
three approximately equal classes. The terms of such classes are staggered so
that only one class is elected at the annual meeting of stockholders each year
for a three-year term. The term of the current Class III directors (Messrs.
Bump, Curran and Isaacs) will expire at the Annual Meeting. The terms of the
current Class I directors (Messrs. Leidel and Taylor) and the current Class II
directors (Messrs. Mitchell and Williams) will expire at the annual meetings of
stockholders to be held for 2006 and 2007, respectively.

      In accordance with the recommendation of the Nominating/Corporate
Governance Committee, the Board of Directors has nominated Michael F. Curran and
S. Fred Isaacs for election as Class III directors. Messrs. Curran and Isaacs,
who currently serve as Class III directors and whose terms expire at the Annual
Meeting, are each standing for re-election as a Class III director for a term
expiring at the annual meeting of stockholders in 2008 and until his successor
is duly elected and qualifies, or until the earlier of his death, retirement, or
resignation. Mr. Isaacs was elected to the Board of Directors in March 2004, and
at that time was recommended to the Nominating/Corporate Governance Committee by
the Company's President and Chief Executive Officer. A Board position will
become vacant in Class III at the Annual Meeting. Larry J. Bump, age 66, who
currently serves as a Class III director and whose term expires at the Annual
Meeting, will retire from the Board of Directors at the Annual Meeting. In March
2004, Mr. Bump relinquished his position of Chairman of the Board of Directors
and announced he would remain a director for the duration of the term expiring
at the Annual Meeting. The Board position being vacated by Mr. Bump will remain
vacant. The Charter provides that any Board vacancies may be filled by the
affirmative vote of a majority of the remaining directors. The
Nominating/Corporate Governance Committee and the Board of Directors have not
yet identified anyone to fill the vacancy. Accordingly, the accompanying proxy
solicits your vote for only two directors. The persons named as proxies in the
accompanying proxy, who have been designated by the Board of Directors, intend
to vote, unless otherwise instructed in such proxy, for the election of Messrs.
Curran and Isaacs. Should any nominee named herein become unable for any reason
to stand for election as a director of the Company, it is intended that the
persons named in such proxy will vote for the election of such other person or
persons as the Nominating/Corporate Governance Committee may recommend and the
Board of Directors may propose to replace such nominee. The Company knows of no
reason why any of the nominees will be unavailable or unable to serve.

      The Company is appreciative of Mr. Bump's 28 years of faithful service to
the Company and his valuable counsel and business advice over the years.

      The affirmative vote of the holders of a majority of the shares present in
person or by proxy at the Annual Meeting and entitled to vote is required for
the election of directors. The Board of Directors recommends a vote "FOR" each
of the following nominees for directors.

NOMINEES FOR DIRECTORS

                                    CLASS III
                             (TERM EXPIRES MAY 2008)

      MICHAEL F. CURRAN, age 65, joined Willbros in March 2000 as a Director,
Vice Chairman of the Board of Directors, President and Chief Operating Officer.
Mr. Curran was named Chief Executive Officer in May 2002 and was elected
Chairman of the Board of Directors in March 2004. He served from 1972 to March
2000 as Chairman and CEO of Michael Curran & Associates, a mainline pipeline
constructor in North America and West Africa, prior to joining Willbros. Mr.
Curran has over 43 years of diversified experience in pipeline construction
around the world, including 34 years as President and Chief Executive Officer of
various domestic and international pipeline construction firms. Mr. Curran also
served as President of the Pipe Line Contractors Association.

                                       2



      S. FRED ISAACS, age 68, was elected to the Board of Directors in March
2004. Mr. Isaacs has been President of A1 Services, Inc. (formerly SFI
Consulting, Inc.), an electrical engineering services company, since March 1997.
He was President of Computer Video Training, Inc., a consulting company, from
August 1995 to March 1997. From September 1992 to August 1995, he served as
President of SFI Consulting, Inc. and Chairman of the Board of Directors of
TranAm Systems International, Inc., a gas compression equipment company. Prior
to that time, he served in senior engineering and executive positions in the
pipeline industry for over 35 years, most recently as Senior Vice President of
Transportation of MAPCO, Inc. and President of Mid-America Pipeline Company and
Seminole Pipeline Company from January 1983 until his retirement from MAPCO,
Inc. in September 1992.

      One Board position in Class III will become vacant at the Annual Meeting.

DIRECTORS CONTINUING IN OFFICE

                                     CLASS I
                             (TERM EXPIRES MAY 2006)

      PETER A. LEIDEL, age 49, was elected to the Board of Directors in 1992.
Since September 1997, Mr. Leidel has been a founder and partner in Yorktown
Partners, L.L.C., an investment management company. From 1983 to September 1997,
he was employed by Dillon, Read & Co., Inc., an investment banking firm, serving
most recently as a Senior Vice President.

      JAMES B. TAYLOR, JR., age 67, was elected to the Board of Directors in
February 1999. Mr. Taylor co-founded Solana Petroleum Corp., a Canadian-based
public oil and gas exploration and production company, in 1997 and served as
Chairman of its Board of Directors until December 2000. From 1996 to 1998, he
was a Director and consultant for Arakis Energy, a Canadian public company with
operations in North America and the Middle East. Prior to that time, he served
for 28 years for Occidental Petroleum Corporation in various worldwide
exploration and operations management positions before retiring in 1996 as
Executive Vice President.

      One Board position in Class I is currently vacant.

                                    CLASS II
                             (TERM EXPIRES MAY 2007)

      RODNEY B. MITCHELL, age 69, was elected to the Board of Directors in July
2001. Mr. Mitchell has over 31 years of experience in the investment management
business. He is President and Chief Executive Officer of The Mitchell Group,
Inc., an investment advisory firm he founded in 1989. Previously, Mr. Mitchell
was President and Chief Executive Officer of Tallassi Management Company,
another investment advisory organization he formed in 1970.

      S. MILLER WILLIAMS, age 54, was elected to the Board of Directors in May
2004. He was Executive Vice President of Strategic Development of Vartec
Telecom, Inc., an international consumer telecommunications services company,
from August 2002 until May 2004, and was appointed interim Chief Financial
Officer of Vartec in November 2003. Since leaving Vartec, he has primarily been
involved in personal investments. From 2000 to August 2003, Mr. Williams was
Executive Chairman of the Board of PowerTel, Inc., a public company which
provided telecommunications services in Australia. From 1991 to 2002, he served
in various executive positions with Williams Communications Group, a subsidiary
of The Williams Companies that provided global network and broadband media
services, most recently as Senior Vice President - Corporate Development and
General Manager - International. He was President and owner of MediaTech,
Incorporated, a manufacturer and dealer of computer tape and supplies, from 1987
until the company was sold in 1992.

      One Board position in Class II is currently vacant.

                                       3



COMPENSATION OF DIRECTORS

      Employee directors receive no additional compensation for service on the
Board of Directors or any committee thereof. Non-employee directors currently
receive an annual retainer of $30,000 plus a fee of $1,500 per meeting for
attending meetings of the Board of Directors. Non-employee directors also
receive fees for attending meetings of committees of the Board of Directors as
follows: chairman and any co-chairman of the committee receive $2,500 per
meeting and the other members of the committee receive $1,500 per meeting.

      Non-employee directors automatically receive non-qualified stock options
under the Willbros Group, Inc. Director Stock Plan, as amended (the "Director
Stock Plan"). Under the Director Stock Plan, an initial option to purchase 5,000
shares of Common Stock is granted to each new non-employee director on the date
such director is elected or appointed to the Board of Directors. Each
non-employee director also receives annually an option to purchase 5,000 shares
of Common Stock on the second Monday in January of each year during the period
of such director's incumbency. The option exercise price of each option granted
under the Director Stock Plan is equal to the fair market value of the Common
Stock on the date of grant. A total of 225,000 shares of Common Stock is
available for issuance under the Director Stock Plan. During fiscal 2004,
Messrs. Bump, Leidel, Mitchell, and Taylor were granted an option to purchase
5,000 shares of Common Stock at an exercise price of $12.38 per share, Mr.
Isaacs was granted an option to purchase 5,000 shares of Common Stock at an
exercise price of $14.26 per share, and Mr. Williams was granted an option to
purchase 5,000 shares of Common Stock at an exercise price of $13.66 per share.

      All directors are reimbursed by the Company for out-of-pocket expenses
incurred by them in connection with their service on the Board of Directors and
any committee thereof.

      The Company paid Mr. Bump $120,000 during 2004 for consulting services
consisting of advice and assistance rendered in connection with its business
activities. The Consulting Services Agreement between the Company and Mr. Bump
terminated on December 31, 2004. Mr. Bump will retire from the Board of
Directors at the Annual Meeting.

CORPORATE GOVERNANCE AND BOARD MATTERS

      The Board of Directors and corporate management utilize their best
individual efforts to adopt and implement best practices of corporate
governance. Each believes strongly that effective corporate governance practices
underpin its efforts to focus the entire organization on generating long-term
stockholder value through conscientious actions and in an ethical manner. The
directors have a wide range of business and industry experience, which provides
insightful perspective on significant matters and an understanding of the
challenges facing the Company. The Company's commitment to sound, independent
oversight is demonstrated by the make-up of the Board of Directors, which has
been comprised of a majority of independent directors since the Company's
initial public offering in 1996.

      The Board of Directors has Corporate Governance Guidelines, a Code of
Business Conduct and Ethics for directors, officers and employees, and an
additional separate Code of Ethics for the Chief Executive Officer and Senior
Financial Officers ("Codes"). The Corporate Governance Guidelines and Codes are
available on the Company's website at http://www.willbros.com under the
"Governance" caption on the "Investors" page, and a copy of the Codes and
Corporate Governance Guidelines will be provided to any stockholder of the
Company upon request to: Secretary, Willbros Group, Inc., c/o Willbros USA,
Inc., 4400 Post Oak Parkway, Suite 1000, Houston, Texas 77027.

      The Company is committed and dedicated to employing sound, ethical
business practices, complying with the law in all areas of the world in which it
works, and demanding the highest standards of integrity from its employees.
There is common agreement that effective corporate governance requires the
checks and balances provided by a proactive Board of Directors and corporate
management actively engaged with others in the organization.

                                       4



      BOARD INDEPENDENCE. The Board of Directors has affirmatively determined
that each of Messrs. Isaacs, Leidel, Mitchell, Taylor, and Williams, current
directors of the Company, are "independent" under the current director
independence standards of the New York Stock Exchange. In so doing, the Board of
Directors determined that each of those individuals met the "bright line"
independence standards of the New York Stock Exchange and has no other material
relationship with the Company (either directly or as a partner, stockholder or
officer of an organization that has a relationship with the Company). In making
the determination of independence, the Board of Directors not only used the
"bright line" independence standards of the New York Stock Exchange, but also
the standard that no relationships exist that are required to be reported under
the caption "Certain Relationships and Related Transactions" in this Proxy
Statement pursuant to the rules and regulations of the Securities and Exchange
Commission. These standards are set forth on Exhibit A to this Proxy Statement.
Mr. Bump is not considered to be independent because of his former employment as
a senior executive of the Company and his receipt of consulting fees from the
Company until December 31, 2004. Mr. Curran is not considered to be independent
because of his employment as a senior executive officer of the Company.

      MEETINGS AND COMMITTEES OF THE BOARD OF DIRECTORS. During 2004, the Board
of Directors held five meetings. Each director was present at 75% or more of the
aggregate of the meetings of the Board of Directors and of the committees of the
Board of Directors on which he served during 2004.

      Each director is encouraged to participate in annual meetings of
stockholders of the Company. However, since such meetings are held in Panama
City, Panama, and are generally of a short duration and the Board of Directors
does not generally have a meeting coincident with the annual meeting of
stockholders, it is often impractical and expensive for each director to attend
in person. Therefore, participation by either telephone or in person is
encouraged. In addition, as discussed below, the Board of Directors has a
process in place by which stockholders and other interested parties may
communicate with the Board of Directors or any of its directors. One director,
Mr. Curran, attended in person the Company's 2004 Annual Meeting of
Stockholders. Messrs. Bump, Isaacs, Mitchell, and Taylor, members of the Board,
and Mr. Williams, a new nominee for director, participated in the 2004 Annual
Meeting of Stockholders by telephone.

      The Board of Directors has a standing Executive Committee, Audit
Committee, Compensation Committee, and Nominating/Corporate Governance
Committee. Each of the current members of each of the committees, other than the
Executive Committee, qualifies as an "independent" director under the current
listing standards of the New York Stock Exchange.

      Executive Committee. The Executive Committee was composed of Messrs.
Curran (Chairman), Bump, and John H. Williams until May 20, 2004. Since then,
the Executive Committee has been composed of Messrs. Curran (Chairman), Bump,
and Mitchell. The Executive Committee is authorized to act for the Board of
Directors in the management of the business and affairs of the Company, except
with respect to a limited number of matters which include changing the size of
the Board of Directors, filling vacancies on the Board of Directors, amending
the By-laws of the Company, disposing of all or substantially all of the assets
of the Company, and recommending to the stockholders of the Company an amendment
to the Articles of Incorporation of the Company or a merger or consolidation
involving the Company. The Executive Committee did not meet during 2004.

      Audit Committee. The Audit Committee was composed of Messrs. Leidel
(Chairman), Mitchell, Taylor, and Guy E. Waldvogel until March 10, 2004. From
March 10, 2004 until May 20, 2004, the Audit Committee was composed of Messrs.
Leidel (Chairman), Mitchell, and Taylor. Since then, the Audit Committee has
been composed of Messrs. Leidel (Chairman), Mitchell, Taylor, and Williams. In
January 2005, Mr. Williams was appointed as Co-Chairman on a temporary basis.
The Board of Directors has determined that it has two audit committee financial
experts serving on the Audit Committee and these persons are Messrs. Leidel and
Williams. The Audit Committee has a written charter, which is available on the
Company's website at http://www.willbros.com. The Company has in place and
circulated a "whistleblower policy" entitled Procedure of the Audit Committee on
Reporting and Investigating Complaints with Regard to Possible Accounting
Irregularities. The Audit Committee appoints the independent registered public
accounting firm who will serve each year as independent auditors of the
Company's financial statements and perform services related to the completion of
such audit. The Audit Committee also has the responsibility to (a) review the
scope and results of the audit with the independent auditors, (b) review with
management and

                                       5



the independent auditors the Company's interim and year-end financial condition
and results of operations, (c) consider the adequacy of the internal accounting,
bookkeeping, and other control procedures of the Company, and (d) review and
pre-approve any non-audit services and special engagements to be performed by
the independent auditors and consider the effect of such performance on the
auditors' independence. The Audit Committee also generally reviews the terms of
material transactions and arrangements, if any, between the Company and its
directors, officers and affiliates. The Audit Committee held eight meetings
during 2004.

      Compensation Committee. The Compensation Committee was composed of Messrs.
Taylor (Chairman), Mitchell, and Michael J. Pink until May 20, 2004. Since then,
the Compensation Committee has been composed of Messrs. Taylor (Chairman),
Isaacs, and Mitchell. The Compensation Committee has a written charter, which is
available on the Company's website at http://www.willbros.com. The Compensation
Committee reviews and takes final action for and on behalf of the Board of
Directors with respect to compensation, bonus, incentive, and benefit provisions
for the officers of the Company and its subsidiaries, and administers the 1996
Stock Plan. The Compensation Committee meets at such times as may be deemed
necessary by the Board of Directors or the Compensation Committee. The
Compensation Committee held five meetings during 2004.

      Nominating/Corporate Governance Committee. The Nominating/Corporate
Governance Committee was composed of Messrs. John H. Williams (Chairman), Bump,
and Leidel until May 20, 2004. Since then, the Nominating/Corporate Governance
Committee has been composed of Messrs. Leidel (Chairman), Isaacs, and M.
Williams. The Nominating/Corporate Governance Committee has a written charter,
which is available on the Company's website at http://www.willbros.com. The
Nominating/Corporate Governance Committee also has put in place, with the
approval of the Board of Directors, Corporate Governance Guidelines. The
Nominating/Corporate Governance Committee is responsible for recommending
candidates to fill vacancies on the Board of Directors as such vacancies occur,
as well as the slate of nominees for election as directors by stockholders at
each annual meeting of stockholders. The Nominating/Corporate Governance
Committee has the authority under its charter to retain a professional search
firm to identify candidates. It is also responsible for developing and
recommending to the Board of Directors the Corporate Governance Guidelines
applicable to the Company. Additionally, the Nominating/Corporate Governance
Committee makes recommendations to the Board of Directors regarding changes in
the size of the Board of Directors and recommends nominees for each committee.
The Nominating/Corporate Governance Committee held three meetings during 2004.

      Printed copies of the Audit, Compensation, and Nominating/Corporate
Governance Committee charters are also available upon request to: Secretary,
Willbros Group, Inc., c/o Willbros USA, Inc., 4400 Post Oak Parkway, Suite 1000,
Houston, Texas 77027.

      CONSIDERATION OF DIRECTOR NOMINEES. The Nominating/Corporate Governance
Committee will consider director candidates submitted to it by other directors,
employees and stockholders. In evaluating such nominations, the
Nominating/Corporate Governance Committee seeks to achieve a balance of
knowledge, experience and capability on the Board of Directors, and to address
the director qualifications discussed below. Any stockholder nominations
proposed for consideration by the Nominating/Corporate Governance Committee
should include the nominee's name and qualifications for director and should be
addressed to: Secretary, Willbros Group, Inc., c/o Willbros USA, Inc., 4400 Post
Oak Parkway, Suite 1000, Houston, Texas 77027. In addition, as described below,
the Company's Charter permits stockholders to nominate directors for
consideration at a meeting of stockholders.

      The Nominating/Corporate Governance Committee regularly assesses the
appropriate size of the Board of Directors and whether any vacancies on the
Board are expected due to retirement or otherwise. In the event that vacancies
are anticipated, or otherwise arise, the Committee considers various potential
candidates for director. Candidates may come to the attention of the Committee
through current directors, professional search firms, stockholders, or other
persons.

      Once a prospective nominee has been identified, the Committee makes an
initial determination as to whether to conduct a full evaluation of the
candidate. The initial determination focuses on the information provided to the
Committee with the recommendation of the prospective candidate and the
Committee's own knowledge of the candidate, which may be supplemented by
inquiries to the person making the

                                       6



recommendation or others. If the Committee determines, after consultation with
the Chairman of the Board of Directors and other directors as appropriate, that
additional consideration is warranted, it may request a professional search firm
to gather additional information about the candidate. The Committee then
evaluates the candidate against the qualifications considered by the Committee
for director candidates, which include an attained position of leadership in the
candidate's field of endeavor, business and financial experience, demonstrated
exercise of sound business judgment, expertise relevant to the Company's lines
of business, and the ability to serve the interests of all stockholders. The
Committee also assesses the candidate's qualifications as an "independent
director" under the current director independence standards of the New York
Stock Exchange. The candidate must be able to devote the time, energy and
attention as may be necessary to properly discharge his or her responsibilities
as a director. As part of this evaluation, one or more members of the Committee,
and others as appropriate, will interview the candidate. After completing this
evaluation, the Committee makes a recommendation to the full Board of Directors
as to the persons who should be nominated by the Board, and the Board determines
the nominees after considering the recommendation of the Committee.

      The Company's Charter provides that nominations of candidates for election
as directors of the Company may be made at a meeting of stockholders by or at
the direction of the Board of Directors, or by any stockholder entitled to vote
at such meeting who complies with the advance notice procedures set forth
therein. These procedures require any stockholder who intends to make a
nomination for director at the meeting to deliver notice of such nomination to
the Secretary of the Company not less than 45 nor more than 90 days before the
meeting. The notice must contain all information about the proposed nominee as
would be required to be included in a proxy statement soliciting proxies for the
election of such nominee, including such nominee's written consent to serve as a
director if so elected. If the Chairman of the meeting determines that a person
is not nominated in accordance with the nomination procedure, such nomination
will be disregarded. The Company expects that the annual meeting of stockholders
to be held each year will be held during the mid to latter part of May.

      EXECUTIVE SESSIONS. Executive sessions of the non-management directors are
held periodically. The sessions are scheduled on a regular basis and chaired by
the chairman of the Nominating/Corporate Governance Committee. Any
non-management director can request that an additional executive session be
scheduled. Executive sessions of the independent directors only are held at
least once a year.

      COMMUNICATIONS WITH THE BOARD OF DIRECTORS. The Board of Directors
provides a process by which stockholders and other interested parties may
communicate with the Board or any of the directors. Stockholders and other
interested parties may send written communications to the Board of Directors or
any of the directors at the following address: Secretary, Willbros Group, Inc.,
c/o Willbros USA, Inc., 4400 Post Oak Parkway, Suite 1000, Houston, Texas 77027.
All communications will be compiled by the Company's Secretary and submitted to
the Board or the individual director.

                  INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

      KPMG has been the independent registered public accounting firm (the
"independent auditor") of Willbros since 1987. Historically, although not
required, a proposal has been presented at the annual meeting of stockholders
asking the stockholders to ratify the appointment of the independent auditor.
However, in view of the recent resignation of KPMG discussed below, such a
proposal will not be presented at the Annual Meeting because the Audit Committee
has not yet selected an independent auditor for 2005. The Audit Committee has
recently requested management of the Company to solicit bids for audit services
for 2005 from several independent registered public accounting firms.
Accordingly, under the circumstances, the Board of Directors is not in a
position to ask stockholders to ratify the appointment of the independent
auditor for 2005.

      On November 10, 2005, the Company was notified by KPMG that, effective
upon completion of the audit of the Company's consolidated financial statements
as of and for the year ended December 31, 2004, and the issuance of its report
thereon, and filing of the Company's Form 10-Q's for the three-month period
ended March 31, 2005 and six-month period ended June 30, 2005, it was resigning
as the Company's independent auditor. The Company filed its Form 10-K for the
year ended December 31, 2004 and its Form 10-Q's for the three-month period
ended March 31, 2005 and six-month period ended June 30, 2005 on November 22,
2005.

                                       7



      The reports of KPMG on the Company's consolidated financial statements for
the past two fiscal years contained no adverse opinion or disclaimer of opinion
and were not qualified or modified as to uncertainty, audit scope or accounting
principles, except as follows:

-     KPMG's report on the consolidated financial statements of the Company as
      of December 31, 2004 and 2003 and for the years ended December 31, 2004,
      2003 and 2002, contained a separate paragraph stating that "as discussed
      in Note 2 to the consolidated financial statements, the Company has
      restated its consolidated balance sheet as of December 31, 2003, and the
      related consolidated statements of operations, stockholders' equity and
      comprehensive income (loss), and cash flows for the years ended December
      31, 2003 and 2002."

-     KPMG's report on the consolidated financial statements of the Company as
      of December 31, 2004 and 2003 and for the years ended December 31, 2004,
      2003 and 2002, contained an additional paragraph stating that "we also
      have audited, in accordance with the standards of the Public Company
      Accounting Oversight Board (United States), the effectiveness of Willbros
      Group, Inc.'s internal control over financial reporting as of December 31,
      2004, based on criteria established in Internal Control - Integrated
      Framework issued by the Committee of Sponsoring Organizations of the
      Treadway Commission (COSO), and our report dated November 21, 2005
      expressed an unqualified opinion on management's assessment of, and an
      adverse opinion on the effective operation of, internal control over
      financial reporting."

            The resignation of KPMG has been accepted by the Audit Committee of
the Board of Directors. The Audit Committee has discussed with representatives
of KPMG certain material weaknesses in internal controls, as described below,
noted by KPMG and has taken certain actions, as described below, to address such
weaknesses.

            During the last two fiscal years and the subsequent interim period
through November 22, 2005, there were no disagreements with KPMG on any matter
of accounting principles or practices, financial statement disclosure or
auditing scope or procedure, which disagreements if not resolved to the
satisfaction of KPMG, would have caused KPMG to make reference to the subject
matter of the disagreements in connection with its report on the financial
statements for such years.

            In connection with its audit for the two most recent fiscal years
and through November 22, 2005, there were no "reportable events" as defined by
Item 304(a)(1)(v) of Regulation S-K, except that KPMG has advised the Company
that it noted certain material weaknesses in the Company's internal financial
reporting and accounting controls, as described below.

1. Company-Level Controls - The Company did not maintain effective company-level
controls in the control environment, risk assessment, and monitoring components
as defined by COSO, including related antifraud controls. Specifically, the
following deficiencies were identified:

      -     The Company's control environment did not sufficiently promote
            effective internal control over financial reporting throughout the
            Company's management structure, and this material weakness was a
            contributing factor in the development of other material weaknesses
            described below.

      -     The Company did not provide sufficient training for personnel
            engaged in key elements of the financial reporting process,
            including training on relevant regulations such as the Foreign
            Corrupt Practices Act ("FCPA").

      -     The Company's policies and procedures did not effectively ensure
            that: (1) personnel, including internal audit, have the appropriate
            skills and experience commensurate with their job responsibilities;
            (2) the reporting structure of the organization was appropriate; and
            (3) key personnel in certain international subsidiaries adhere to a
            periodic rotation policy.

      -     The Company failed to educate and train employees in identifying,
            monitoring, or reporting and responding to, incidents of alleged
            misconduct or unethical behavior, including the Company's
            whistleblower policy and the Company's code of conduct policies.

                                       8



These deficiencies in the Company's internal control over financial reporting
resulted in material misstatements to various amounts in previously-issued
annual and interim financial statements. Accordingly, the Company has restated
its consolidated financial statements as of and for the years ended December 31,
2002 and 2003 and the first three quarters of 2004.

2. Construction Contract Management - The Company's operating subsidiaries in
Nigeria did not maintain effective policies and procedures regarding review and
approval processes relating to: (i) original and revised project cost estimates;
(ii) original contract pricing; (iii) establishment and management of contract
contingencies; and (iv) change order management. These deficiencies in the
Company's internal control over financial reporting resulted in material
overstatement of contract revenue and understatement of contract costs in
previously-issued annual and interim financial statements. Accordingly, the
Company has restated its consolidated financial statements as of and for the
years ended December 31, 2002 and 2003 and the first three quarters of 2004.

3. International Taxes - The Company's policies and procedures did not provide
for effective supervisory review of the Company's accounting for international
taxes, value added taxes, and payroll taxes and the related recordkeeping
activities. These deficiencies in the Company's internal control over financial
reporting resulted in material understatement of contract cost and income tax
expense in previously-issued annual and interim financial statements.
Accordingly, the Company has restated its consolidated financial statements as
of and for the years ended December 31, 2002 and 2003, and the first three
quarters of 2004.

4. Disbursements Process - The Company did not maintain effective policies and
procedures regarding its disbursement process. Specifically, deficiencies in
policies and procedures were identified in the following areas: (i) petty cash
disbursements at the Company's Nigerian subsidiaries; (ii) the Company's vendor
approval process and maintenance of an approved vendor listing; and (iii)
disbursement approval levels for individuals, subsidiaries, and senior
management. These deficiencies resulted in material undisclosed related party
transactions and payment of fraudulent vendor invoices resulting in material
overstatement of contract revenue and overstatement of contract cost in
previously-issued annual and interim financial statements. Accordingly, the
Company has restated its consolidated financial statements as of and for the
years ended December 31, 2002 and 2003, and the first three quarters of 2004.

      Company management with oversight from the Audit Committee has devoted
substantial effort to the remediation of its material weaknesses described
above, and to the improvement of the Company's internal control over financial
reporting. Specifically, prior to December 31, 2004, the Company:

-     increased staffing and training of the finance and accounting personnel at
      the business unit level; and

-     adopted a more frequent rotation policy for the financial staff at its
      business units.

      Subsequent to December 31, 2004, the Company has undertaken the following
actions to remediate its material weaknesses and to improve the Company's
internal control over financial reporting:

-     initiation of an enhanced worldwide awareness program to educate employees
      with respect to the content of its whistleblower policy to better achieve
      reporting of any suspected problems;

-     realignment of the reporting of all business units' financial staff
      directly to the Corporate Controller's Office;

-     adoption of a more frequent rotation policy for the operations staff at
      its business units;

-     adoption of a policy requiring approval of the General Counsel or the
      Chief Financial Officer for the engagement of legal, accounting and tax
      advisors;

-     implementation of an "enhanced and stand-alone" FCPA Compliance Program
      (separate from that incorporated previously into its Code of Business
      Conduct and Ethics), inclusive of a "Definitive FCPA

                                       9



      Policy Statement" from the Board of Directors and an FCPA Compliance
      Procedure providing for, among other measures, routine training
      company-wide;

-     requirement that employees in positions of authority, as well as
      professional consultants, identify any direct or indirect ownership
      interest in entities doing business with the Company. Included in this
      disclosure will be any entities owned or controlled in whole or in part by
      immediate family members such as spouses;

-     improvements to strengthen existing internal controls relating
      specifically to Nigerian cash disbursements, approved vendor lists and
      approval levels for individuals, subsidiaries and senior management; and

-     expansion and formalization of the review process by corporate tax
      personnel of all international tax returns on at least a quarterly basis.
      Book and tax liability accounts will be reconciled and compared with tax
      returns as filed. This process was already in place for the North American
      subsidiaries.

            Company management with oversight from the Audit Committee is
implementing other improvements as described below:

-     appointment of a senior-level Company employee with primary responsibility
      for implementation, oversight and enforcement of the (i) Definitive FCPA
      Policy Statement; (ii) the Code of Business Conduct and Ethics; and (iii)
      the Whistleblower Policy, and communication of that appointment throughout
      the Company. The appointee will have a direct communication line to the
      Audit Committee; and

-     movement of the internal audit function from an outsourced function with
      an independent accounting firm to an in-house department to facilitate
      more frequent and more in-depth examination of controls throughout the
      Company.

            A representative of KPMG LLP will be present at the Annual Meeting.
Such representative will be given the opportunity to make a statement if he or
she desires to do so and will be available to respond to appropriate questions.

AUDIT AND OTHER FEES PAID TO INDEPENDENT AUDITORS

            Audit Fees. The aggregate fees billed for the years ended December
31, 2004 and 2003, by KPMG LLP ("KPMG") for professional services rendered for
the audit of the Company's annual financial statements, and for the reviews of
the financial statements included in the Company's Quarterly Reports on Form
10-Q or services that are normally provided by the accountants in connection
with statutory and regulatory filings or engagements for those years were
$763,500 and $433,000, respectively.

            Audit-Related Fees. The aggregate fees billed for the years ended
December 31, 2004 and 2003, for assurance and related services by KPMG that are
reasonably related to the performance of the audit or review of the Company's
financial statements and are not reported above under "Audit Fees" were $-0- and
$23,000, respectively. These services consisted principally of audits of
financial statements of certain employee benefit plans, review of registration
statements, issuance of consents, and acquisition advisory services.

            Tax Fees. The aggregate fees billed for the years ended December 31,
2004 and 2003, for professional services by KPMG for tax compliance, tax advice,
and tax planning were $-0- and $-0-, respectively.

            All Other Fees. The aggregate fees billed for the years ended
December 31, 2004 and 2003, by KPMG for products and services rendered to the
Company, other than the services described above, were $69,000 and $-0-,
respectively. These fees were related to work associated with Sarbanes-Oxley
requirements, unpriced change orders, and the Company's Opal Gas Plant.

                                       10



AUDIT COMMITTEE PRE-APPROVAL POLICY

      It is the policy of the Audit Committee to pre-approve audit,
audit-related, tax and all other services specifically described by the Audit
Committee on a periodic basis up to a specified dollar amount. All other
permitted services, as well as proposed services exceeding such specified dollar
amount, are separately pre-approved by the Audit Committee.

                           PRINCIPAL STOCKHOLDERS AND
                        SECURITY OWNERSHIP OF MANAGEMENT

      The following table sets forth certain information regarding the
beneficial ownership of the Company's Common Stock as of December 1, 2005 by (a)
each person who is known by the Company to own beneficially more than five
percent of the outstanding shares of Common Stock, (b) each director and nominee
for director of the Company, (c) each of the executive officers of the Company
named in the Summary Compensation Table below, and (d) all executive officers
and directors of the Company as a group. Except as otherwise indicated, the
Company believes that the beneficial owners of the Common Stock listed in the
table, based on information furnished by such owners, have sole investment and
voting power with respect to such shares.



                                                                          SHARES
                                                                       BENEFICIALLY         PERCENTAGE
NAME OF OWNER OR IDENTITY OF GROUP                                        OWNED (1)        OF CLASS (1)
-----------------------------------------------------------------      ------------        ------------
                                                                                     
Wells Fargo & Company/Wells Capital Management...................         2,401,722(2)        11.1
Third Avenue Management LLC......................................         1,652,875(3)         7.6
Imperium Capital Management, LLC.................................         1,164,100(4)         5.4
Michael F. Curran................................................           657,900(5)         3.0
Larry J. Bump....................................................           271,590(6)         1.2
John K. Allcorn..................................................           144,730(7)         *
Warren L. Williams...............................................           141,712(8)         *
John T. Dalton...................................................            70,285(9)         *
J. Kenneth Tillery...............................................            40,000(10)        *
Peter A. Leidel..................................................            66,172(11)        *
Rodney B. Mitchell...............................................            25,000(12)        *
James B. Taylor, Jr..............................................            24,000(13)        *
S. Fred Isaacs...................................................            10,000(14)        *
S. Miller Williams...............................................            10,000(15)        *
All executive officers and directors as a group (11 people)......         1,461,548(16)        6.6


----------
* Less than 1%

(1)   Shares beneficially owned include restricted stock held by the executive
      officers of the Company over which they have voting power but not
      investment power. Shares of Common Stock which were not outstanding but
      which could be acquired by a person upon exercise of an option within 60
      days of December 1, 2005, are deemed outstanding for the purpose of
      computing the percentage of outstanding shares beneficially owned by such
      person. Such shares, however, are not deemed to be outstanding for the
      purpose of computing the percentage of outstanding shares beneficially
      owned by any other person.

(2)   Information is as of February 28, 2005, and is based on the Schedule 13G/A
      dated March 24, 2005, which was filed by Wells Fargo & Company ("Wells
      Fargo") and Wells Capital Management Incorporated ("Wells Capital"). Wells
      Fargo's address is 420 Montgomery Street, San Francisco, California 94104,
      and Wells Capital's address is 525 Market Street, 10th Floor, San
      Francisco, California 94105. Wells Fargo is a parent holding company, and
      Wells Capital is a registered investment advisor. Of the shares shown,
      Wells Fargo has sole voting power over 2,354,457 shares, sole dispositive
      power over 2,131,236 shares, and shared dispositive power over 700 shares.
      Of the shares shown, Wells Capital has sole voting power over 1,309,601
      shares and sole dispositive power over 2,131,106 shares.

                                       11



(3)   Information is as of December 31, 2004, and is based on the Schedule 13G/A
      dated February 16, 2005, which was filed by Third Avenue Management LLC
      ("TAM"). TAM's address is 622 Third Avenue, 32nd Floor, New York, New York
      10017-2023. TAM is a registered investment advisor.

(4)   Information is as of December 31, 2004, and is based on the Schedule 13G
      dated February 11, 2005, which was filed by Imperium Capital Management,
      LLC, Imperium Capital Advisors, LLC, and Stephen R. Goldfield. The address
      for all three filers is One Tampa City Center, Suite 2505, Tampa, Florida
      33602. The three filers may be deemed the beneficial owners of the shares
      shown, having sole voting power and sole dispositive power over the
      shares.

(5)   Includes (a) 428,155 shares held in a corporation controlled by Mr.
      Curran, (b) 200,000 shares subject to stock options which are currently
      exercisable at an average exercise price of $10.56 per share, and (c)
      6,575 shares held in the Willbros Employees' 401(k) Investment Plan (the
      "401(k) Plan") for the account of Mr. Curran.

(6)   Includes 160,000 shares subject to stock options which are currently
      exercisable at an average exercise price of $10.40 per share.

(7)   Includes (a) 50,000 shares subject to stock options which are currently
      exercisable at an average exercise price of $15.00 per share, and (b)
      5,954 shares held in the 401(k) Plan for the account of Mr. Allcorn.

(8)   Includes (a) 82,150 shares subject to stock options which are currently
      exercisable at an average exercise price of $13.16 per share, and (b)
      2,311 shares held in the 401(k) Plan for the account of Mr. Williams.

(9)   Includes (a) 27,000 shares subject to stock options which are currently
      exercisable at an average exercise price of $7.83 per share, and (b) 4,509
      shares held in the 401(k) Plan for the account of Mr. Dalton.

(10)  Information is as of January 6, 2005. Does not include stock options that
      were forfeited on April 6, 2005.

(11)  Includes 34,000 shares subject to stock options which are currently
      exercisable at an average exercise price of $12.59 per share.

(12)  Represents 25,000 shares subject to stock options which are currently
      exercisable at an average exercise price of $14.32 per share. Does not
      include 1,057,653 shares held as of December 1, 2005, by The Mitchell
      Group, Inc., a registered investment advisor who holds these shares in
      investment advisory accounts managed by it for numerous clients. The
      Mitchell Group has full investment discretion with respect to such
      accounts. Mr. Mitchell is a director and executive officer of The Mitchell
      Group. Mr. Mitchell disclaims beneficial ownership of these shares.

(13)  Represents (a) 1,000 shares held by the James and Sarah Taylor Trust, and
      (b) 23,000 shares subject to stock options which are currently exercisable
      at an average exercise price of $11.50 per share.

(14)  Represents 10,000 shares subject to stock options which are currently
      exercisable at an average exercise price of $17.73 per share.

(15)  Represents 10,000 shares subject to stock options which are currently
      exercisable at an average exercise price of $17.43 per share.

(16)  For specific information regarding each of the listed individuals, see
      footnotes (5) through (15) above.

                                       12


                             EXECUTIVE COMPENSATION

SUMMARY COMPENSATION TABLE

      The following table sets forth certain information with respect to the
compensation of the Company's Chief Executive Officer and each of the Company's
four most highly compensated executive officers other than the Chief Executive
Officer, based on salary and bonus earned during fiscal 2004, for services in
all capacities to the Company and its subsidiaries during each of the Company's
last three fiscal years.



                                                                                           LONG-TERM COMPENSATION
                                                                               -----------------------------------------------
                                                ANNUAL COMPENSATION                    AWARDS           PAYOUT
                                      ---------------------------------------  ----------------------  ---------
                                                                                           SECURITIES
                                                                               RESTRICTED  UNDERLYING  LONG-TERM
                                                                 OTHER ANNUAL    STOCK      OPTIONS/   INCENTIVE   ALL OTHER
           NAME AND                            SALARY    BONUS   COMPENSATION   AWARD(s)      SARS      PAYOUTS   COMPENSATION
      PRINCIPAL POSITION              YEAR       ($)    ($) (1)    ($) (2)      ($) (3)      (#) (4)      ($)          ($)
------------------------------        ----     -------  -------  ------------  ----------  ----------  ---------  ------------
                                                                                          
Michael F. Curran.................    2004     425,000  150,000       -0-        309,500        -0-       -0-       15,000(5)
   President and                      2003     425,000      -0-       -0-            -0-        -0-       -0-       15,000
   Chief Executive Officer            2002     408,333  860,000       -0-            -0-        -0-       -0-        8,992

John K. Allcorn...................    2004     275,000   62,500       -0-        185,700        -0-       -0-       10,070(5)
   Executive Vice President           2003     275,000      -0-       -0-            -0-        -0-       -0-       10,070
                                      2002     275,000  315,000       -0-            -0-     15,625       -0-       12,955

J. Kenneth Tillery (6)............    2004     285,000      -0-       -0-        185,700        -0-       -0-        8,372(5)
   Former President of                2003     258,710      -0-       -0-            -0-        -0-       -0-        8,772
   Willbros International, Inc.       2002     250,008  240,000       -0-            -0-     15,625       -0-       68,928

Warren L. Williams................    2004     250,000  100,000       -0-        185,700        -0-       -0-       11,500(5)
   Senior Vice President and          2003     225,000      -0-       -0-            -0-        -0-       -0-       11,500
   Chief Financial Officer            2002     213,542  270,000       -0-            -0-     15,625       -0-       12,687

John T. Dalton....................    2004     330,000  100,000       -0-        185,700        -0-       -0-        8,000(5)
   Senior Vice President and          2003     330,000      -0-       -0-            -0-        -0-       -0-        8,000
   General Counsel                    2002(7)   82,500  200,000       -0-            -0-        -0-       -0-          -0-


---------
(1)   Consists of compensation paid as discretionary bonuses.

(2)   Does not include the value of perquisites and other personal benefits
      because the aggregate amount of such compensation, if any, does not exceed
      the lesser of $50,000 or 10 percent of the total amount of annual salary
      and bonus for any named individual.

(3)   Represents the dollar value of the restricted stock award based on the
      number of shares granted and the market value of the Company's Common
      Stock on the grant date. All grants of restricted stock are made under the
      Company's 1996 Stock Plan. During the restricted period, dividends, if
      any, are paid on all restricted shares at the same rate as dividends, if
      any, paid to stockholders.

      During 2004, Mr. Curran received a grant of restricted stock for 25,000
      shares and Messrs. Allcorn, Dalton, Tillery and Williams each received a
      grant of restricted stock for 15,000 shares. Each of these grants vests in
      four equal annual installments, commencing January 12, 2005. The 15,000
      shares of restricted stock granted to Mr. Tillery were forfeited to the
      Company on January 6, 2005.

      As of December 31, 2004, the aggregate number of shares of unvested
      restricted stock held by the officers shown in the table and the dollar
      value of such shares was: Mr. Curran, 25,000 shares ($576,250); Mr.
      Allcorn, 15,000 shares ($345,750); Mr. Tillery, 15,000 shares ($345,750);
      Mr. Williams,

                                       13


      15,000 shares ($345,750); and Mr. Dalton, 15,000 shares ($345,750). The
      dollar values are based on the closing price of the Company's Common Stock
      on December 31, 2004, of $23.05 per share.

(4)   Consists solely of options to acquire shares of Common Stock.

(5)   Consists of Company contributions to the Company's (a) 401(k) Plan in the
      amount of $8,000 for each of Messrs. Curran, Allcorn, Tillery, Williams,
      and Dalton, and (b) Executive Life Plan in the amount of $7,000 for Mr.
      Curran, $2,070 for Mr. Allcorn, $372 for Mr. Tillery, and $3,500 for Mr.
      Williams.

(6)   Mr. Tillery resigned as an executive officer of the Company on January 6,
      2005.

(7)   Mr. Dalton joined the Company in November 2002 as Senior Vice President
      and General Counsel.

OPTION/SAR GRANTS IN LAST FISCAL YEAR

      There were no options granted to the named executive officers of the
Company during fiscal 2004. The Company has never granted any stock appreciation
rights.

AGGREGATED OPTION/SAR EXERCISES IN LAST FISCAL YEAR AND FY-END OPTION/SAR VALUES

      The following table sets forth certain information with respect to options
exercised by the named executive officers of the Company during fiscal 2004, and
the number and value of unexercised options held by such executive officers at
the end of the fiscal year. The Company has never granted any stock appreciation
rights.



                          SHARES                                             VALUE OF UNEXERCISED
                         ACQUIRED                NUMBER OF SECURITIES           IN-THE-MONEY
                            ON       VALUE      UNDERLYING UNEXERCISED      OPTIONS/SARS AT FY-END
                         EXERCISE  REALIZED   OPTIONS/SARS AT FY-END (#)         ($)(1) (2)
                         --------  --------   --------------------------  --------------------------
         NAME              (#)      ($) (1)   EXERCISABLE  UNEXERCISABLE  EXERCISABLE  UNEXERCISABLE
-----------------------  --------  --------   -----------  -------------  -----------  -------------
                                                                     
Michael F. Curran......       -0-        -0-      200,000            -0-  2,497,500              -0-
John K. Allcorn........   100,000  1,578,430       50,000            -0-    402,500              -0-
J. Kenneth Tillery.....    10,808    119,091       28,500            -0-    229,425              -0-
Warren L. Williams.....    15,000    113,595       82,150            -0-    812,120              -0-
John T. Dalton.........       -0-        -0-       27,000         25,000    410,970          394,750


------------
(1)   Market value of the underlying securities at exercise date or fiscal
      year-end, as the case may be, minus the option exercise price.

(2)   The closing price for the Company's Common Stock on the New York Stock
      Exchange on December 31, 2004, the last trading day of the fiscal year,
      was $23.05.

EMPLOYMENT AGREEMENTS, TERMINATION OF EMPLOYMENT AND CHANGE IN CONTROL
ARRANGEMENTS

      None of the named executive officers of the Company have an employment
agreement, other than Mr. Curran. On December 31, 2004, Willbros USA, Inc.
("WUSA"), an indirect wholly owned subsidiary of the Company, entered into an
employment agreement (the "Agreement") with Mr. Curran.

      The term of the Agreement is three years, commencing on January 1, 2005,
and ending on December 31, 2007 (the "Employment Period"). During the Employment
Period, Mr. Curran will earn a base salary of $700,000 per year (the "Base
Salary").

                                       14


      Additionally, Mr. Curran may earn a cash bonus of up to 150 percent of his
Base Salary (or $1,050,000) (the "Maximum Cash Bonus") for each year during the
Employment Period if certain transition performance goals and/or net income
target performance goals approved by the Board of Directors of the Company are
achieved. The transition performance goals specifically relate to Mr. Curran's
responsibilities during the Employment Period to facilitate the transition of
his title and responsibilities as the Chief Executive Officer of the Company to
another individual approved by the Board of Directors. During 2005, 2006, and
2007, 25 percent, 50 percent and 50 percent, respectively, of the Maximum Cash
Bonus may be earned if the transition performance goals for the relevant year
are achieved. The net income target performance goal is generally defined as the
line item designated as such in the Company's annual budget for the year 2005,
2006, and 2007, respectively, as approved by the Board of Directors for the
relevant year, before deducting any net income performance bonuses payable to
Mr. Curran and/or otherwise to employees. During 2005, 2006, and 2007, up to 75
percent, 50 percent and 50 percent, respectively, of the Maximum Cash Bonus may
be earned if the net income target performance goals for the relevant year are
achieved.

      If the total remuneration payable to Mr. Curran, including Base Salary,
bonus and any other remuneration includable for purposes of Section 162(m) of
the Internal Revenue Code of 1986, as amended, for any year during the
Employment Period exceeds $1,000,000, then a part of the earned bonus will not
be paid until July 1, 2008. The part of the bonus earned that will be deferred
will be the amount which, when subtracted from the total remuneration payable to
Mr. Curran for such year, results in the total remuneration paid to Mr. Curran
for such year equaling $1,000,000. Any deferred amount will earn interest as
specified in the Agreement.

      Under the terms of the Agreement, Mr. Curran has been and in the future
will be granted rights to receive Common Stock of the Company ("Restricted Stock
Rights") under the Company's 1996 Stock Plan, as amended, as follows:

      1. On January 1, 2005, Restricted Stock Rights for 125,000 shares, with
      vesting to occur in three equal annual installments on December 31 of
      2005, 2006 and 2007;

      2. On January 1, 2006, Restricted Stock Rights for 50,000 shares, with
      vesting to occur in two equal annual installments on December 31 of 2006
      and 2007; and

      3. On January 1, 2007, Restricted Stock Rights for 50,000 shares, with
      vesting to occur in two equal installments on June 30, 2007, and December
      31, 2007.

      All shares of the Company's Common Stock deliverable to Mr. Curran by
reason of vesting of the Restricted Stock Rights will be delivered on July 1,
2008.

      Pursuant to the Agreement, in the event Mr. Curran's employment is
terminated by WUSA without cause, or due to a constructive discharge, or due to
a Change in Control (as defined in the Willbros Group, Inc. Severance Plan as
amended and restated effective September 25, 2003), he will be entitled, among
other things: (i) to continue receiving his Base Salary during the remainder of
the Employment Period and (ii) to the maximum available amount for unearned
bonuses as if he had satisfied the performance goals for each of the uncompleted
years remaining in the Employment Period at the time of termination. If Mr.
Curran voluntarily resigns or is terminated by WUSA for cause, he will receive
his Base Salary through the date of termination and no cash bonuses for any
years remaining in the Employment Period which have not yet ended as of the date
of termination. If termination occurs by reason of Mr. Curran's death or
disability, he will receive his Base Salary through the date of death or
termination and the maximum amount available for a cash bonus in the year of his
death or termination by reason of disability as if he had satisfied the
performance goals for such year (but not for later years during the Employment
Period). In such cases, Mr. Curran is entitled to such benefits as are provided
under such Severance Plan, if any; provided, however, that the value of any
compensation and/or benefits payable under such Severance Plan shall not be
duplicative of any amounts paid under the Agreement, and such amounts payable
under such Severance Plan shall be offset against the value of any compensation
or benefits payable to him under the Agreement, and vice versa.

      Pursuant to the Agreement, during the Employment Period and for a period
of one year thereafter, Mr. Curran will not compete with the businesses of the
Company and its affiliates.

                                       15


      In October 1998, the Compensation Committee approved and recommended, and
the Board of Directors adopted, the Willbros Group, Inc. Severance Plan (the
"Severance Plan"), effective January 1, 1999. The Board of Directors adopted the
Severance Plan in lieu of entering into new employment agreements with the
executive officers at that time. Since the Severance Plan was scheduled to
expire on December 31, 2003, the Compensation Committee approved and
recommended, and the Board of Directors adopted a restated and amended Severance
Plan (the "Restated Severance Plan"), effective September 25, 2003. Each of the
named executive officers of the Company is a participant in the Restated
Severance Plan. The Restated Severance Plan, which will remain in effect until
December 31, 2006, provides that a participant whose employment is terminated
other than for cause or who resigns due to (a) reduction of compensation or
other benefits, including incentive plans, (b) reduction in scope of
participant's authorities, duties, or title, or (c) material change in the
location of a participant's principal place of employment by the Company, when a
change in control of the Company is imminent or within three years after a
change in control of the Company has occurred, shall be entitled to severance
compensation (a) equal to 300 percent of the participant's annual base
compensation, (b) equal to 300 percent of the participant's greatest annual cash
bonus received during the 36-month period ending on the date of the change in
control, (c) equal to the aggregate annual incentive plan target opportunity
that could have been earned in the year termination of employment occurs, (d)
that provides full vesting of all of the participant's outstanding stock
options, restricted stock awards and other equity-based awards, and (e) that
extends the participant's and his dependents' coverage under the benefit plans
for 24 months. The Restated Severance Plan also provides that a participant who
voluntarily terminates his employment for reasons similar to termination of
employment by the Company within 18 months after a change in control of the
Company has occurred shall be entitled to a severance payment equal to the same
severance compensation applicable to the entitlement provided by termination of
employment by the Company. Finally, the Restated Severance Plan provides that a
participant whose employment is terminated other than for cause prior to a
change in control of the Company shall be entitled to a severance payment equal
to 100 percent of his base salary then in effect. A participant who receives a
severance payment under the Restated Severance Plan will be subject to either a
one year or two year competition restriction depending on the basis for the
termination. All taxes on severance payments made under the Restated Severance
Plan are the participant's responsibility. Mr. Tillery did not receive any
severance payments under the Restated Severance Plan in connection with his
resignation as an executive officer of the Company on January 6, 2005.

      All outstanding awards under the Company's 1996 Stock Plan, regardless of
any limitations or restrictions, become fully exercisable and free of all
restrictions, in the event of a change in control of the Company, as defined in
such Plan.

REPORT ON EXECUTIVE COMPENSATION

      The Compensation Committee of the Board of Directors (the "Compensation
Committee") administers the compensation program for executive officers of the
Company. The duties of the Compensation Committee include reviewing and
evaluating the Company's executive compensation program to assess its
effectiveness in attracting, motivating and retaining highly skilled executive
officers. The Compensation Committee also administers the Company's 1996 Stock
Plan and has access to outside compensation consulting firms and compensation
information.

      Compensation Philosophy

      The objectives of the Company's executive compensation program include:

      -     Providing a total executive compensation plan that is
            performance-driven and rewards business success based on an
            executive's individual performance;

      -     Aligning the financial interests of the executive officers with the
            performance of the Company;

      -     Emphasizing equity-based compensation for Company executives to
            reinforce management's focus on stockholder value; and

                                       16


      -     Attracting, motivating, and retaining executive officers and key
            management personnel to achieve the Company's business objectives.

      The Compensation Committee adheres to an executive compensation philosophy
that supports the Company's business strategies. Compensation decisions under
the executive compensation program are made by the Compensation Committee and
approved by the Board of Directors.

      Compensation Program

      Company executives participate in a comprehensive compensation program
comprised of base salary, potential for discretionary annual cash incentive
awards, and long-term equity-based opportunities in the form of stock options,
restricted stock awards, and restricted stock rights awards.

      Base Salary. The level of base salary paid to executive officers is
determined on the basis of performance, experience and such other factors as may
be appropriately considered by the Compensation Committee. Each year the
Compensation Committee reviews the base salaries of the executives and considers
salary adjustments based on individual performance, overall financial results of
the Company, competitive position relative to the marketplace, duration of time
since last salary increase, and cost-of-living indicators. Mr. Warren L.
Williams received a salary increase in 2004. Mr. J. Kenneth Tillery received a
salary increase because of his promotion to President of Willbros International,
Inc. None of the other executive officers of the Company received a salary
increase for 2004.

      Discretionary Annual Cash Incentive Awards. In 2004, the Company's
executive officers were eligible for discretionary annual cash incentive awards.
In determining whether to award cash bonuses, the Compensation Committee
primarily considers the financial performance of the Company and an executive's
individual performance. Several factors are considered in evaluating an
executive's individual performance, which include achievement of business
strategy, successful accomplishment of business goals and objectives,
contribution toward the Company's profitability, and enhancement of stockholder
value. Based on these factors, the executive officers, other than Mr. Tillery,
were considered for and paid cash incentive bonus awards for 2004.

      Long-Term Incentive Program. In 1996, the Board of Directors and the
stockholders of the Company approved the 1996 Stock Plan. The 1996 Stock Plan
permits the Compensation Committee to grant various stock-based awards,
including options, stock appreciation rights, restricted stock and restricted
stock rights, to executive officers and key management employees of the Company
based on competitive practices and the Company's overall performance. Stock
options, restricted stock and restricted stock rights awards are designed to
provide grantees with the opportunity to acquire a proprietary interest in the
Company and to give such persons a stronger incentive to work for the continued
success of the Company. An option award may be either an incentive stock option
(the "ISO") or a non-qualified stock option (the "NSO"). The Compensation
Committee takes into account management's recommendations regarding the number
of shares or options and the number of shares of restricted stock or restricted
stock rights to be awarded to specific employees. During 2004, each of the
executive officers of the Company was granted restricted stock awards under the
1996 Stock Plan.

      To date, the Compensation Committee has granted ISO, NSO and restricted
stock and restricted stock rights awards to executive officers from time to
time. Both ISO and NSO awards entitle the employee to purchase a specified
number of shares of the Company's Common Stock at a specified price during a
specified period. Both the ISO awards and the NSO awards have a 10-year term.
Both types of awards are designed as an incentive for future performance by the
creation of stockholder value over the long-term since the greatest benefit of
the options is realized only if stock price appreciation occurs. Restricted
stock awards are grants of a specified number of shares of the Company's Common
Stock in which the employee's rights to the shares are limited until the shares
vest and cease to be subject to the restrictions. The employee obtains full
ownership of the unrestricted shares of stock when it vests. Restricted stock
rights awards represent the right to receive shares of the Company's common
stock upon vesting. The rights are considered "restricted" because they are
subject to forfeiture and restrictions on transfer prior to vesting and the
related issuance of shares. Vesting of such awards may be tied to a specified
time period or the achievement of certain performance goals. The Company uses
stock options, restricted stock and restricted stock rights awards as

                                       17


its long-term incentive devices since such awards provide the clearest tie
between enhanced stockholder wealth and executive pay.

      Chief Executive Officer Compensation for 2004

      Mr. Curran's overall compensation is determined in the same manner as is
the compensation for the other executive officers. As a result of the depressed
state of the energy industry at the time his salary for 2004 was determined, Mr.
Curran did not receive a salary increase in 2004. As a significant stockholder
of the Company, Mr. Curran continues to have strong incentive to create value
for the Company's stockholders. Mr. Curran was granted an award of restricted
stock during 2004 under the Company's 1996 Stock Plan. Mr. Curran was awarded a
cash incentive bonus for 2004 based on his leadership and contributions to the
performance of the Company in 2004, which included record Company backlog at the
end of 2004.

      Policy Regarding Tax Deductibility of Executive Compensation

      Section 162(m) of the U.S. Internal Revenue Code places a $1,000,000 per
person limitation on the United States tax deduction a U.S. subsidiary employer
of a publicly-held corporation may take for compensation paid to the Company's
Chief Executive Officer and its four other highest paid executive officers,
except compensation which constitutes performance-based compensation as defined
by the U.S. Internal Revenue Code is not subject to the $1,000,000 limit. The
Compensation Committee generally intends to grant awards under the Company's
1996 Stock Plan consistent with the terms of Section 162(m) so that such awards
will not be subject to the $1,000,000 limit. While the Company intends to pursue
a strategy of maximizing the deductibility of compensation paid to executive
officers in the future, it also intends to maintain the flexibility to take
actions that it considers to be in the Company's best interests and to take into
consideration factors other than deductibility. In doing so, the Compensation
Committee may utilize alternatives such as deferring compensation to qualify
compensation for deductibility, and may rely on grandfathering provisions with
respect to existing compensation commitments. If any executive officer
compensation exceeds this limitation, it is expected that such cases will
represent isolated, nonrecurring situations arising from special circumstances.

      The Compensation Committee and the Board of Directors believe that the
executive compensation policies promote the interest of the stockholders and the
Company effectively, and the various compensation opportunities afforded the
executive officers are appropriately balanced to provide motivation for
executives to contribute to the profitability and overall success of the
Company.

                             COMPENSATION COMMITTEE

                        James B. Taylor, Jr. (Chairman)
                               Rodney B. Mitchell
                      S. Fred Isaacs (since May 20, 2004)

      The Report on Executive Compensation shall not be deemed incorporated by
reference by any general statement incorporating by reference this Proxy
Statement into any filing under the Securities Act of 1933, as amended, or the
Securities Exchange Act of 1934, as amended, except to the extent that the
Company specifically incorporates this information by reference, and shall not
otherwise be deemed filed under such Acts.

COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION

      During 2004, the Compensation Committee was composed of James B. Taylor,
Jr., Rodney B. Mitchell, Michael J. Pink (until May 20, 2004), and S. Fred
Isaacs (since May 20, 2004), all of whom are independent directors of the
Company. During 2004, none of the Company's executive officers served on the
board of directors or on the compensation committee of any other entity who had
an executive officer that served either on the Company's Board of Directors or
on its Compensation Committee.

                                       18


PERFORMANCE GRAPH

      The following graph compares the yearly percentage change in the
cumulative total stockholder return on the Company's Common Stock during the
period commencing January 1, 2000, and ended on December 31, 2004, with the
cumulative total return on the S&P 500 Index and the S&P 500 Construction &
Engineering Index. The comparison assumes $100 was invested December 31, 1999,
in the Company's Common Stock and in each of the foregoing indices, and assumes
reinvestment of dividends.

                                        [BAR CHART]



                                        BASE               INDEXED RETURNS
                                       PERIOD                YEARS ENDING
COMPANY/ INDEX                         DEC99    DEC00    DEC01    DEC02    DEC03    DEC04
--------------                         ------   ------   ------   ------   ------   ------
                                                                  
WILLBROS GROUP INC                      100     137.84   345.95   177.73   259.89   498.38
S&P 500 INDEX                           100      90.90    80.09    62.39    80.29    89.03
S&P 500 CONSTRUCTION & ENGINEERING      100     112.30   128.50    87.40   122.17   170.48


      The above performance graph shall not be deemed incorporated by reference
by any general statement incorporating by reference this Proxy Statement into
any filing under the Securities Act of 1933, as amended, or the Securities
Exchange Act of 1934, as amended, except to the extent that the Company
specifically incorporates this information by reference, and shall not otherwise
be deemed filed under such Acts.

                          REPORT OF THE AUDIT COMMITTEE

      Securities and Exchange Commission rules require that a company's proxy
statement contain a report of its audit committee. The role of the Audit
Committee is to assist the Board of Directors in its oversight of the Company's
financial reporting process, including the system of internal controls.
Management has the primary responsibility for the financial statements and the
financial reporting process, including the system of internal controls. The
Company's independent registered public accounting firm is responsible for
performing an independent audit of the Company's financial statements and
internal control over financial reporting in accordance with the Public Company
Accounting Oversight Board standards and to issue a report thereon. The Audit
Committee monitors these processes.

                                       19


      In the performance of its oversight function, the Audit Committee has
reviewed and discussed the audited financial statements of the Company for the
fiscal year 2004 with management and with the Company's independent auditors.
Specifically, the Audit Committee has discussed with the independent auditors
matters required to be discussed by Statement on Auditing Standards No. 61,
Communication with Audit Committees, as amended and supplemented.

      The Audit Committee has received the written disclosures and the letter
from the Company's independent auditors, KPMG LLP, required by Independence
Standards Board No. 1, Independence Discussions With Audit Committees, as
amended and supplemented. Additionally, the Audit Committee has discussed with
KPMG the issue of its independence from the Company and has concluded that KPMG
is independent.

      The Audit Committee has also discussed with the Company's internal
auditors and independent auditors, with and without management present, their
evaluations of the Company's internal control over financial reporting and the
overall quality of the Company's financial reporting.

      In January 2005, the Audit Committee initiated an independent
investigation into certain activities of the former President of the primary
international subsidiary of the Company following notification from the Company
of an approximate $2.5 million tax assessment against the Company's Bolivian
subsidiary for allegedly filing improper tax returns. The investigation
determined that the former President and other employees of the primary
international subsidiary of the Company and its subsidiaries had engaged in
improper activities. Details of these activities and the full scope of the Audit
Committee's investigation and findings are covered in the Company's Annual
Report on Form 10-K for the fiscal year ended December 31, 2004.

      Based on its review of the audited financial statements and the various
discussions noted above, the Audit Committee recommended to the Board of
Directors that the audited financial statements be included in the Company's
Annual Report on Form 10-K for the fiscal year ended December 31, 2004, filed
with the Securities and Exchange Commission.

                               THE AUDIT COMMITTEE

                           Peter A. Leidel (Chairman)
                               Rodney B. Mitchell
                              James B. Taylor, Jr.
                     S. Miller Williams (since May 20, 2004)

      The Report of the Audit Committee shall not be deemed incorporated by
reference by any general statement incorporating by reference this Proxy
Statement into any filing under the Securities Act of 1933, as amended, or the
Securities Exchange Act of 1934, as amended, except to the extent that the
Company specifically incorporates this information by reference, and shall not
otherwise be deemed filed under such Acts.

                 CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

      The Board of Directors previously approved an Employee Stock Purchase
Program (the "Program"). Under the Program, selected executives and officers of
the Company were given the opportunity to borrow funds on an interest free basis
for the purpose of exercising vested stock options granted to the executives
under the Company's 1996 Stock Plan. All such loans are full recourse and
therefore secured by Company stock. The maximum amount that could be loaned to
individual executives under the Program is $250,000. Each loan has a maximum
term of five years and does not bear interest unless not repaid on the due date.
The loan will become due 90 days after termination of employment or on the
normal due date of the loan, whichever is first. Pursuant to the Program, in
March 2002, certain executive officers of the Company became indebted to the
Company in amounts in excess of $60,000 under various notes. In 2004, Messrs.
John K. Allcorn and J. Kenneth Tillery paid off all of their indebtedness,
$232,188 and $249,995, respectively, under the Program and have no outstanding
balance as of December 31, 2004. The following table sets forth, as to the
person shown, the largest amount of the indebtedness outstanding, the interest
rate, the final maturity date and the outstanding balance of such indebtedness
as of December 1, 2005:

                                       20



                                 LARGEST                                        FINAL             OUTSTANDING
                                AMOUNT OF               INTEREST               MATURITY            BALANCE AT
      NAME                     INDEBTEDNESS               RATE                   DATE             DEC. 1, 2005
      ----                     ------------             --------              ----------          ------------
                                                                                      
Warren L. Williams               $250,000                  0%                 March 2007            $250,000


      In accordance with the Sarbanes-Oxley Act of 2002, the Company no longer
makes loans to executive officers of the Company.

      During the past several years, certain of the Company's subsidiaries have
entered into commercial agreements with companies in which the former President
of Willbros International, Inc., J. Kenneth Tillery, apparently had an ownership
interest (Mr. Tillery resigned from the Company on January 6, 2005). These
ownership interests had not been previously disclosed to the Company and were in
violation of the Company's written policies. Those companies included Arbastro
Trading Ltd., Windfall Energy Services, Oco Industrial Services, Ltd., Hydrodive
Offshore Services International, Inc., Hydrodive Nigeria, Ltd., and Hydrodive
International, Ltd. All are companies that chartered or sold marine vessels to
the Company's subsidiaries. Hydrodive Offshore Services International, Inc. and
Hydrodive International, Ltd. have also provided diving services to the
Company's subsidiaries.

      Mr. Tillery also appears to have exercised significant influence over the
activities of Symoil Petroleum Ltd. and Fusion Petroleum Services Ltd., which
provided consulting services for projects in Nigeria, and Kaplan and Associates,
which provided consulting services for projects in Bolivia and certain other
foreign locations.

      Payments made to companies where Mr. Tillery appears to have an
undisclosed ownership interest, varying from 13 percent to 40 percent, or over
which he appears to have exercised significant influence in the three-year
period ended December 31, 2004 totaling $33,493,000 are detailed below (dollar
amounts in thousands):



                                                              Year Ended December 31,
                                                 ------------------------------------------------
                                                   2004         2003          2002         Total
                                                 ---------    ---------    ---------    ---------
                                                                            
Arbastro Trading Ltd.                            $      --    $      --    $   2,047    $   2,047
Fusion Petroleum Services Ltd.                         871           --           --          871
Hydrodive Offshore Services
     International, Inc.                                --        2,682       10,483       13,165
Hydrodive International, Ltd.                        5,705        3,431           --        9,136
Hydrodive Nigeria, Ltd.                                210          112          881        1,203
Kaplan and Associates                                  524          617          840        1,981
Oco Industrial Services, Ltd.                           63          287          236          586
Windfall Energy Services Ltd.                          922          285           --        1,207
Symoil Petroleum Ltd.                                1,121          544        1,632        3,297
                                                 ---------    ---------    ---------    ---------

     Total                                       $   9,416    $   7,958    $  16,119    $  33,493
                                                 =========    =========    =========    =========


                                       21


      Outstanding amounts owed to related parties in which Mr. Tillery appears
to have had an undisclosed ownership interest or over which he appears to have
exercised significant influence are as follows (dollar amounts in thousands):



                                                      December 31,
                                                 ----------------------
                                                   2004          2003
                                                 ---------      -------
                                                          
Hydrodive International, Ltd.                    $   1,846      $    --
Windfall Energy Services Ltd.                          300          233
Symoil Petroleum Ltd.                                   --          437
Kaplan and Associates                                   --           41
Oco Industrial Services, Ltd.                           --           55
Hydrodive Nigeria, Ltd.                                  5            8
                                                 ---------      -------

     Total                                       $   2,151      $   774
                                                 =========      =======


      In addition, it appears that Mr. Tillery had an equity interest in Addax
Petroleum of Nigeria ("Addax") during an unknown period prior to April of 2003.
During this period, subsidiaries of the Company were paid for various services
which they performed for Addax. During the first three months of 2003 and all of
2002, the Company recognized revenue from Addax of $311,000 and $10,469,000,
respectively. Subsequent to March 2003, Mr. Tillery purportedly sold his equity
interest in Addax. The subsidiaries of the Company continued to perform services
for Addax and/or its successor company ("New Addax"). During the last nine
months of 2003 and the full year of 2004, the Company recorded revenue of
$5,465,000 and $21,404,000, respectively, for services provided to New Addax.
The Addax and New Addax revenue accounted for less than five percent of the
Company's consolidated revenue in 2004, 2003 and 2002. The Company had
outstanding accounts receivable from New Addax and contract cost and recognized
income not yet billed to New Addax of $9,845,000 and $5,401,000 at December 31,
2004 and 2003, respectively. In 2005, the Company entered into a global
settlement with New Addax for outstanding receivables, change orders, and claims
for $10,000,000. The settlement was recovered in full in May 2005.

             SECTION 16(a) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE

      Section 16(a) of the Securities Exchange Act of 1934, as amended, requires
the Company's directors and executive officers, and persons who own more than 10
percent of the Company's Common Stock, to report their initial ownership of the
Common Stock and any subsequent changes in that ownership to the Securities and
Exchange Commission and the New York Stock Exchange, and to furnish the Company
with a copy of each such report. The Securities and Exchange Commission
regulations impose specific due dates for such reports, and the Company is
required to disclose in this Proxy Statement any failure to file by these dates
during and with respect to fiscal 2004.

      To the Company's knowledge, based solely on review of the copies of such
reports furnished to the Company and written representations that no other
reports were required, during and with respect to fiscal 2004, all Section 16(a)
filing requirements applicable to its officers, directors and more than 10
percent stockholders were complied with, except that Mr. Allcorn inadvertently
omitted from one of his reports three transactions relating to exercises of
employee stock options.

                                  OTHER MATTERS

MATTERS WHICH MAY COME BEFORE THE ANNUAL MEETING

      The Board of Directors knows of no matters other than those described in
this Proxy Statement which will be brought before the Annual Meeting for a vote
of the stockholders. If any other matters properly come before the Annual
Meeting for a stockholder vote, the persons named in the accompanying proxy will
vote thereon in accordance with their best judgment.

                                       22


PROPOSALS OF STOCKHOLDERS

      Proposals of stockholders intended to be presented at the Company's 2006
Annual Meeting of Stockholders must be received at the principal executive
offices of the Company, Plaza 2000 Building, 50th Street, 8th Floor, P.O. Box
0816-01098, Panama, Republic of Panama, on or before January 20, 2006, to be
considered for inclusion in the Company's proxy statement and accompanying proxy
for that meeting.

      If a stockholder, who intends to present a proposal at the Company's 2006
Annual Meeting of Stockholders and has not sought inclusion of the proposal in
the Company's proxy materials pursuant to Rule 14a-8, fails to provide the
Company with notice of such proposal by March 13, 2006, then the persons named
in the proxies solicited by the Company's Board of Directors for its 2006 Annual
Meeting of Stockholders may exercise discretionary voting power with respect to
such proposal.

                                            By Order of the Board of Directors,

                                            Dennis G. Berryhill
                                            Secretary

December 28, 2005
Panama City, Panama

                                       23


                                                                       EXHIBIT A

              CATEGORICAL STANDARDS UTILIZED BY BOARD OF DIRECTORS
                     WHEN DETERMINING DIRECTOR INDEPENDENCE

      A Director will not be independent if:

      (i) The Director is, or has been within the last three years, an employee
of the Company;

      (ii) An immediate family member of the Director is, or has been within the
last three years, an executive officer of the Company;

      (iii) The Director has received, or has an immediate family member who has
received, during any twelve-month period within the last three years, more than
$100,000 in direct compensation from the Company, other than Director and
committee fees and pension or other forms of deferred compensation for prior
service (provided such compensation is not in any way contingent on continued
service);

      (iv) The Director or an immediate family member is a current partner of a
firm that is the Company's internal or external auditor; the Director is a
current employee of such a firm; the Director has an immediate family member who
is a current employee of such a firm and who participates in the firm's audit,
assurance or tax compliance (but not tax planning) practice; or the Director or
an immediate family member was within the last three years (but is no longer) a
partner or employee of such a firm and personally worked on the Company's audit
within that time;

      (v) The Director or an immediate family member is, or has been within the
last three years, employed as an executive officer of another company where any
of the Company's present executive officers at the same time serves or served on
that company's compensation committee;

      (vi) The Director is a current employee, or an immediate family member is
a current executive officer, of a company that has made payments to, or received
payments from, the Company for property or services in an amount which, in any
of the last three fiscal years, exceeds the greater of $1 million or 2% of such
other company's consolidated gross revenues; or

      (vii) The Director serves as an executive officer of a tax exempt
organization that has received, within the preceding three years, contributions
in any single fiscal year from the Company to the organization that exceeded the
greater of $1 million or 2% of such tax exempt organization's consolidated gross
revenues.

      For purposes of the above standards, the term "immediate family member"
means a person's spouse, parents, children, siblings, mothers and
fathers-in-law, sons and daughters-in-law, brothers and sisters-in-law and
anyone (other than domestic employees) who share such person's home, but
excluding any person who is no longer an immediate family member as a result of
legal separation or divorce or those who have died or become incapacitated.

      A Director will also not be considered to be independent if the Director
has any other relationship or transaction that is required to be disclosed in
the Company's Proxy Statement pursuant to Rule 404 of Regulation S-K.

                                      A-1



                              WILLBROS GROUP, INC.

[LOGO]

           THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS
       FOR THE ANNUAL MEETING OF STOCKHOLDERS TO BE HELD FEBRUARY 1, 2006

      The undersigned hereby appoints Gian Castillero and Fernando Arias, and
each of them, with full power of substitution, as proxies to represent and vote
all of the shares of Common Stock the undersigned is entitled to vote at the
2005 Annual Meeting of Stockholders of Willbros Group, Inc. to be held on the
1st day of February, 2006, at 9:00 a.m., local time, at the Panama Marriott
Hotel, Calle 52 y Ricardo Arias - Area Bancaria, Panama City, Panama, and at any
and all adjournments thereof, on all matters coming before said meeting.

             PLEASE MARK, SIGN AND DATE THE PROXY ON THE OTHER SIDE
         AND RETURN THE PROXY CARD PROMPTLY USING THE ENCLOSED ENVELOPE.

                            (CONTINUED ON OTHER SIDE)

    ADDRESS CHANGE/COMMENTS (MARK THE CORRESPONDING BOX ON THE REVERSE SIDE)

                            - FOLD AND DETACH HERE -



THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER DIRECTED HEREIN BY
THE STOCKHOLDER. IF NO DIRECTION IS MADE, THIS PROXY WILL BE VOTED FOR PROPOSAL
1.

PLEASE MARK HERE FOR ADDRESS CHANGE OR COMMENTS                [ ]
SEE REVERSE SIDE

1.    Election of Directors.

                              FOR all nominees                             
                                   listed                                  
                                 to the left       WITHHOLD AUTHORITY
                                 (except as          to vote for all
                                marked to the           nominees
   Nominees:                      contrary)        listed to the left
   01 Michael F. Curran              [ ]                   [ ]
   02 S. Fred Isaacs
   as Class III Directors.

2.    In their discretion, the proxies are authorized to vote upon such other
      business as may properly come before the meeting and at any and all
      adjournments thereof.

INSTRUCTIONS: To withhold authority to vote for any individual nominee, write
the nominee's name in the space provided below.

________________________________________________________________________________


                                   Dated:  ________________________, 200________

                                   _____________________________________________
                                                 Signature
                                   _____________________________________________
                                             Signature if held jointly

                                   Please sign exactly as name appears herein,
                                   date and return promptly. When shares are
                                   held by joint tenants, both must sign. When
                                   signing as attorney, executor, administrator,
                                   trustee or guardian, please give full title
                                   as such. If a corporation, please sign in
                                   full corporate name by duly authorized
                                   officer, and give title of officer. If a
                                   partnership, please sign in partnership name
                                   by authorized person and give title or
                                   capacity of person signing.


                            - FOLD AND DETACH HERE -