REGISTRATION RIGHTS AGREEMENT
                              
                              
           THIS  REGISTRATION RIGHTS AGREEMENT (this
"Agreement") is  entered  into this 1st day of December,
1997, by and  between HAGLER BAILLY, INC., a Delaware
corporation (the "Acquiror"), and Richard  R.  Mudge, acting
by virtue of the Merger Agreement  (as hereinafter  defined)
as the attorney-in-fact and  representative (the
"Stockholders'  Representative") of the  stockholders  (the
"Company  Stockholders")  of Apogee Research,  Inc.,  a
Maryland corporation (the "Company").
          WHEREAS,  on  or  about the date  hereof,  the
Company Stockholders  have or will have become the owners
of  shares  of Acquiror's  common  stock, par value $0.01
per  share  ("Acquiror Common Stock");
          WHEREAS,  as  part of the inducement  for  the
parties hereto to enter into and perform the Agreement and
Plan of Merger (the "Merger Agreement"), dated as of the
date as of November 18, 1997, the parties hereto have agreed
to enter into this Agreement in order to provide, among
other things, for certain registration rights;
          NOW, THEREFORE, the parties hereto, in
consideration of the  foregoing,  the mutual covenants and
agreements  hereinafter set forth, and other good and
valuable consideration, the receipt and  sufficiency  of
which  hereby are  acknowledged,  agree  as follows:
          1.    Term.  This Agreement shall terminate on the
date on  which  the  Company  Stockholders could  sell  all
of  their Registrable  Securities  to the public in  a
single  transaction pursuant to the provisions of Rule 144
under the Securities  Act, provided,  however, the
indemnification provisions of  Section  6 hereof shall
survive the termination of this Agreement.
          2.   Piggyback Registration Rights.
          (a)   If at any time or times Acquiror proposes to
make a  registered  public offering of any of its securities
(whether for  its  own  account or for the account of
others)  under  the Securities  Act, Acquiror shall (i)
promptly give written  notice of  the proposed registration
to each of the Company Stockholders (such notice to include
the number of shares the Company or other security holders
propose to register and, if known, the  name  of the
proposed underwriter) and (2) use its best efforts to
include in  such  registration (and any related
qualification under  Blue Sky  laws and/or other compliance)
all the Registrable Securities specified  in a written
request or requests made by  any  Company Stockholder within
30 days after the receipt of such notice  from the  Company
(a "Piggyback Registration").  Such written  request may
specify  all or a part of a holder's Registrable Securities,
provided,  however,  that (x) Acquiror will not  be
required  to effect  a  Piggyback Registration if it is
registering securities on  Forms  S-8  or  S-4  (or any
successor forms)  or  other  SEC registration form not
suitable for inclusion of shares of selling stockholders
for offer to the public, (y) Acquiror may  withdraw any
proposed  registration statement or offering  of  securities
under this Section 2 at any time without liability to any
Company Stockholder,  in  which case Acquiror will  not  be
required  to effect a registration, and (z) Acquiror shall
not be required  to effect  a  Piggyback Registration unless
the Company Stockholders holding a majority of the aggregate
amount of Registrable  Shares
request registration for sale of such shares.
          (b)   If  a  Piggyback Registration is an
underwritten
primary  registration  on behalf of Acquiror,  and  the
managing underwriter  advises  Acquiror in writing that  in
the  managing underwriter's  opinion the number of
securities requested  to                             be
included in such registration exceeds the number that can be
sold in such offering without adversely affecting the
marketability of the  offering, Acquiror shall include in
such offering first, the securities  of  Acquiror  proposed
to be  sold  by  Acquiror  and second,  all other securities
held by security holders, including the  Registrable
Securities, requested to be  included  in  such registration
by all other security holders (including the Company
Stockholders), pro rata among such security holders,  based
upon the  number  of shares requested by each to be included
in  such registration.                           If  a
Piggyback Registration is  an  underwritten
secondary registration on behalf of selling stockholders,
and the managing  underwriter advises Acquiror in  writing
that  in  the managing underwriter's opinion the number of
securities requested to  be included in such registration
exceeds the number that  can be   sold  in  such  offering
without  adversely  affecting  the marketability  of  the
offering, then Acquiror shall  include               in
such  offering first, the securities of Acquiror proposed
to              be
sold  by  the  stockholders requiring or demanding that
Acquiror effect such registration and second, all other
securities held by security holders, including the
Registrable Securities, requested to be included in such
registration by all other security holders (including  the
Company  Stockholders),  pro  rata  among        such
security  holders, based upon the number of shares
requested       by
each  to  be  included  in  such registration.   If  a
Piggyback
Registration is an underwritten primary registration on
behalf of Acquiror,  the selling Company Stockholders agree
to  sell  their Acquiror Common Stock, if Acquiror so
requests, on the same basis as  the other securities
included in such registration are  being sold  and  the
underwriter or underwriters for such registration shall be
selected by Acquiror.

          3.   Registration Procedures.

          Whenever  the Company Stockholders have requested
that Registrable Securities be registered in a Piggyback
Registration, Acquiror  shall keep each Company Stockholder
advised in  writing as  to  the  initiation  of  each
registration  and  as  to  the completion   thereof.   At
its  expense,  as  expeditiously                         as
reasonably possible, Acquiror shall:

                (1)  prepare and file with the SEC a
registration statement with respect to such Registrable
Securities and use its best   efforts,  subject  to  Section
2(a)(y),  to  cause                              such
registration statement to become effective (provided that
before filing  a  registration statement or prospectus or
any amendments or  supplements  thereto, Acquiror will
furnish  to  one  counsel selected  by  the  holders  of  a
majority  of  the  Registrable Securities covered by such
registration statement copies  of  all such  documents
proposed to be filed, which  documents  will         be
subject to the review of such counsel);

                (2)   keep  such registration statement
effective for  a  period of not less than nine months or
until the  Company Stockholders  have completed the
distribution described  in  such registration  statement,
whichever occurs  first,  and  amend                 or
supplement   such  registration  statement  and  the
prospectus contained  therein from time to time to the
extent  necessary                                    to
comply  with the provisions of the Securities Act and
applicable state  securities  laws with respect to the
disposition  of  all securities  covered  by such
registration statement  during  such
period in accordance with the intended methods of
disposition     by
the sellers thereof set forth in such registration
statement;

                (3)   furnish  to  the Company  Stockholders
the number  of  copies of such registration statement, each
amendment and   supplement  thereto,  the  prospectus
contained  in   such
registration  statement (including each preliminary
prospectus), and such other documents as the Company
Stockholders from time to time may reasonably request;

                (4)   use its best efforts to register or
qualify such  shares under the state blue sky or securities
("Blue  Sky") laws  of such jurisdictions as any Company
Stockholder reasonably requests, and to do any and all other
acts and things that may be reasonably   necessary  or
advisable  to  enable   the
Company
Stockholders to consummate the disposition of such shares in
such jurisdictions;  provided,  however, that  Acquiror
will  not   be
required to do any of the following:  (i) qualify generally
to do business in any jurisdiction where it is not then so
qualified or otherwise required to be so qualified but for
this Section  3(b), or  (ii) take any action which would
subject it to the service of process  in  actions  other
than  those  arising  out  of
such
registration;

                (5)  notify the Company Stockholders, at any
time when  a  prospectus  relating to the  Registrable
Securities  is
required  to  be  delivered  under the  Securities  Act,  of
the occurrence  of  any  event as a result of  which  the
prospectus included  in any such registration statement
contains  an  untrue statement  of  a material fact or omits
to state a material  fact required to be stated therein or
necessary to make the statements therein  in the light of
the circumstances under which they  were made,  not
misleading, and prepare and furnish to  such  Company
Stockholders  a  reasonable number of copies of a
supplement  or
amendment  to  the  prospectus as may be necessary  so
that,       as
thereafter  delivered  to  the purchasers  of  such  shares,
the prospectus  will not contain an untrue statement  of  a
material fact  or omit to state any fact required to be
stated therein   or
necessary  to  make the statements therein, in the light  of
the circumstances then existing, not misleading;

                (6)  cause all such Registrable Securities
to          be
listed  on  each securities exchange on which similar
securities issued by Acquiror are then listed and, if not so
listed,  to     be
listed on the National Association of Securities Dealers
("NASD") Automated  Quotation  ("Nasdaq") system and,  if
listed  on  the Nasdaq   system,  use  its  reasonable  best
efforts  to  secure designation  of all such Registrable
Securities covered  by  such registration  statement  as  a
Nasdaq  "national  market  system security"  within  the
meaning of Rule 11Aa2-1  of  the  SEC  or, failing that, to
secure Nasdaq authorization for such Registrable Securities;

                (7)   provide a transfer agent and registrar
for all  such  Registrable Securities (if Acquiror does  not
already have  such  an agent) not later than the effective
date  of  such registration statement;

                 (8)    enter   into  such  customary
agreements (including  underwriting agreements in customary
form)  and  take all  such  other  actions as the holders of
a  majority  of  the Registrable  Securities being sold or
the underwriters,  if  any, reasonably  request  in  order
to  expedite  or  facilitate  the disposition  of  such
Registrable Securities (including,  without limitation,
effecting a stock split or a combination of shares);
                (9)   make  available  all  financial  and
other records, pertinent corporate documents and properties
of Acquiror for  inspection  by,  and cause Acquiror's
officers,  directors, employees  and independent accountants
to supply all  information reasonably  requested  by, any
seller of Registrable  Securities, any underwriter
participating in any disposition pursuant to such
registration  statement  and any attorney,  accountant  or
other agent  retained by any such seller or underwriter  in
connection with  such  registration  statement who executes
any  reasonable confidentiality  agreement that may be
reasonably  requested  by Acquiror  or  who  is  bound by
fiduciary  duty  or  professional responsibility to preserve
the confidentiality thereof;
                (10) otherwise use its reasonable best
efforts to comply with all applicable rules and regulations
of the SEC,  and make  available  to its security holders,
as soon  as  reasonably practicable,  an  earnings statement
covering the  period  of  at least  12 months beginning with
the first day of Acquiror's first full   calendar  quarter
after  the  effective   date   of           the
registration  statement, which earnings statement  shall
satisfy the  provisions of Section 11(a) of the Securities
Act  and  Rule 158 thereunder;

               (11) use its reasonable best efforts to cause
such Registrable Securities covered by such registration
statement  to be  registered                         with
or  approved  by  such  other  governmental
agencies or authorities as may be necessary to enable the
sellers thereof to  consummate  the  disposition  of  such
Registrable
Securities; and

               (12) to the extent then permitted under
applicable professional  guidelines and standards, obtain a
comfort  letter from the Acquiror's independent public
accountants and an opinion from the Acquiror's counsel in
the form substantially similar  to forms  provided in
connection with the registration statement  in each  case
addressed  to  the Company Stockholders  and  provide copies
thereof to such Company Stockholders.

          4.   Holdback Agreements.

          (a)   Each holder of Registrable Securities agrees
not
to  effect  any  public  sale  or distribution  (including
sales pursuant  to Rule 144) of equity securities of
Acquiror,  or  any securities  convertible into or
exchangeable or  exercisable  for such  securities, during
the seven days prior to and  the  90-day period  beginning
on  the  effective date  of  any  underwritten Piggyback
Registration  (except as  part  of  such  underwritten
registration),  unless the underwriters managing  the
registered
public offering otherwise agree.

          (b)   The Acquiror agrees (i) not to effect any
public
sale  or distribution of its equity securities, or any
securities convertible  into  or  exchangeable  or
exercisable   for   such securities, during the seven days
prior to and during the  90-day period  beginning  on  the
effective date  of  any  underwritten Piggyback
Registration  (except as  part  of  such  underwritten
registration or pursuant to registrations on Form S-8 or
Form S-4 or  any  successor  form), unless the underwriters
managing  the registered public offering otherwise agree,
and (ii) to  use  all reasonable  efforts to cause each
Person that, during the  30-day period   prior          to
the  effective  date  of   such   Piggyback
Registration,   holds  shares  of  Acquiror  Common   Stock   (or
securities  convertible into or exercisable or  exchangeable
for Acquiror Common Stock) received from Acquiror in an
amount which, on  a  fully  diluted basis, exceeds 1% of
Acquiror Common  Stock then  outstanding (on a fully diluted
basis),  to  agree  not  to
effect  any public sale or distribution (including sales
pursuant to Rule 144) of any such securities during such
period (except as part  of such underwritten registration,
if otherwise permitted), unless  the underwriters managing
the registered public  offering otherwise agree.
          5.   Registration Expenses.
          (a)   If  Registrable  Securities  are  included
in  a registration  statement for a Piggyback Registration,
then  each selling Company Stockholder shall pay all
transfer taxes, if any, relating to the sale of its shares,
the fees and expenses of  its own  counsel,  and  its  pro
rata portion  of  any  underwriting discounts or commissions
or the equivalent thereof.
          (b)   If  Registrable  Securities  are  included
in  a registration statement for a Piggyback Registration,
then  except for  the  fees and expenses specified in
Section 5(a) hereof  and except  as  provided  below in this
Section 5(b),  regardless  of whether  any  registration
statement becomes effective,  Acquiror shall  pay  all
expenses  incident to a Piggyback  Registration, including,
without limitation, all registration qualification and
filing fees, fees and expenses of compliance with Blue Sky
laws, underwriting  discounts,  fees,  and  expenses  (other
than  the Company  Stockholders'  pro  rata  portion  of
any  underwriting discounts  or  commissions or the
equivalent  thereof),  printing expenses, messenger and
delivery expenses, and fees and  expenses of  counsel  for
Acquiror and all independent  certified  public accountants
and other persons retained by Acquiror.
          6.   Indemnification.
          (a)   The  Acquiror agrees to indemnify, to the
extent permitted  by  law, each holder of Registrable
Securities,  each Person who controls such holder (within
the meaning of Section 15 of  the  Securities  Act or
Section 20 of the Exchange  Act)  and their respective
officers, directors, partners, employees, agents and
representatives,  against  all  losses,  claims,
damages,
liabilities  and expenses ("Losses") arising out of or
based  on any untrue or alleged untrue statement of material
fact contained in  any  registration statement, prospectus,
offering  circular, preliminary  prospectus  or  other
document  incident                            to         any
registration,  qualification  or  compliance  or  any
amendment thereof or supplement thereto or any omission or
alleged omission of  a material fact required to be stated
therein or necessary to make  the statements therein, in
light of the circumstances under which  they  were made, not
misleading, or any violation  by  the Acquiror  of the
Securities Act or the Exchange Act or securities act  of any
state or any rule or regulation thereunder applicable to
the  Acquiror and relating to any action or inaction
required of  the  Acquiror  in  connection  with  any  such
registration, qualification or compliance, and will
reimburse each such holder, each  of  its  officers,
directors,  partners  and  each  Person controlling  such
holder, for any legal and any  other  expenses reasonably
incurred  in  connection  with                investigating   and
defending  or settling any such claim, loss damage,
liability  or action; provided, however, that the Acquiror
shall not be  liable in  any such case to the extent that
any such loss arises out  of or is based on any untrue
statement (or alleged untrue statement) or  omission (or
alleged omission) based upon written information furnished
to  the  Acquiror by such  holder  and  stated  to  be
specifically for use therein.  In connection with an
underwritten offering, Acquiror will indemnify such
underwriters, each  Person who controls such underwriters
(within the meaning of Section  15 of  the  Securities  Act
or Section 20 of the Exchange  Act)  and their respective
officers, directors, partners, employees, agents
and  representatives  to the same extent as provided  above
with respect  to  the  indemnification of the holders  of
Registrable Securities.
          (b)   In connection with any registration
statement           in
which  holders of Registrable Securities are participating,
each such  holder will furnish to Acquiror in writing such
information and  affidavits  as  Acquiror  reasonably
requests  for  use                                    in
connection  with  any such registration statement  or
prospectus and,  to  the  extent permitted by law, will
indemnify  Acquiror, each  Person who controls Acquiror
(within the meaning of Section 15  of the Securities Act or
Section 20 of the Exchange Act)  and their respective
officers, directors, partners, employees, agents and
representatives against any Losses arising out of  or  based
upon  any  untrue or alleged untrue statement of a material
fact contained in any registration statement, prospectus, or
form      of
prospectus,  or  arising out of or based  upon  any
omission            or
alleged omission of a material fact required to be stated
therein or  necessary  to make the statements therein, in
light  of  the circumstances under which they were made, not
misleading, to  the extent,  but  only  to the extent, that
such  untrue  or  alleged untrue  statement  is contained
in, or such omission  or  alleged omission  is  required  to
be contained in,  any  information                        so
furnished in writing by such holder to Acquiror expressly
for use in  such  registration  statement or  prospectus
and  that  such statement or omission was relied upon by
Acquiror  in preparation of such registration statement,
prospectus or form of prospectus; provided,  however,  that
such holder of  Registrable  Securities shall not be liable
in any such case to the extent that any  such loss  arises
out  of  or is based on any  untrue  statement  (or alleged
untrue statement) or omission (or alleged omission) based
upon  written information furnished to the holder of
Registrable Securities by the Acquiror and stated to be
specifically for  use therein. .  In no event shall the
liability of any selling holder of Registrable Securities
hereunder be greater in amount than the dollar  amount  of
the proceeds (net of payment of all  expenses) received  by
such  holder  upon  the  sale  of  the  Registrable
Securities  giving rise to such indemnification obligation.
Such indemnity shall remain in full force and effect
regardless of any investigation made by or on behalf of such
indemnified party.

          (c)   If  any  Person  shall be entitled  to
indemnity hereunder, such indemnified party shall give
prompt notice to the party  or  parties  from which such
indemnity is  sought  of  the commencement of any action,
suit, proceeding or investigation                         or
written threat thereof ("Proceeding") with respect to which
such indemnified party seeks indemnification or contribution
pursuant hereto;  provided, however, that the failure  to
so  notify  the indemnifying  parties shall not relieve the
indemnifying  parties from  any obligation or liability
hereunder except to the  extent that  the  indemnifying
parties have  been  prejudiced  by  such failure.    The
indemnifying  parties  shall  have  the   right, exercisable
by  giving written notice to  an  indemnified  party
promptly   after  the  receipt  of  written  notice   from   such
indemnified  party  of  such  Proceeding,  to  assume,   at   the
indemnifying   parties'  expense,  the  defense   of   any   such
Proceeding,   with  counsel  reasonably  satisfactory   to   such
indemnified  party; provided, however, that an indemnified
party or  parties (if more than one such indemnified party
is named            in
any  Proceeding) shall have the right to employ separate
counsel in any such Proceeding and to participate in the
defense thereof, but the fees and expenses of such counsel
shall be at the expense of  such indemnified party or
parties unless the parties to  such Proceeding include both
the indemnified party or parties and  the indemnifying party
or parties, and there exists, in  the  opinion of   the
parties'  counsel,  a  conflict  between  one  or  more
indemnifying  parties  and one or more  indemnified
parties,                                               in
which case the indemnifying parties shall, in connection
with any one  such  Proceeding  or separate but
substantially  similar                                   or
related Proceedings in the same jurisdiction, arising out of
the same general allegations or circumstances, be liable for
the fees and  expenses  of  not more than one separate firm
of  attorneys (together  with appropriate local counsel) at
any time  for  such indemnified  party or parties. If an
indemnifying  party  assumes the defense of such Proceeding,
the indemnifying parties will not be  subject  to  any
liability for any settlement  made  by  the indemnified
party without its or their consent (such consent  not to be
unreasonably withheld).

          (d)   If  the  indemnification  provided  for  in
this Section  6  is  unavailable  to  an  indemnified  party  or           is
insufficient  to  hold such indemnified party  harmless  for
any Losses  in respect of which this Section 6 would
otherwise  apply by its terms, then each applicable
indemnifying party, in lieu of indemnifying  such
indemnified party, shall  have  a  joint  and several
obligation to contribute to the amount paid or payable by
such  indemnified  party  as a result of  such  Losses,  in
such proportion as is appropriate to reflect the relative
fault of the indemnifying party, on the one hand, and such
indemnified  party, on  the other hand, in connection with
the actions, statements or omissions  that  resulted in such
Losses as  well  as  any  other relevant  equitable
considerations.  The relative fault  of  such indemnifying
party, on the one hand, and indemnified  party,          on
the  other hand, shall be determined by reference to, among
other things,  whether any action in question, including any
untrue                                                 or
alleged  untrue  statement  of a material  fact  or
omission                                               or
alleged omission to state a material fact, has been taken
by,                                                    or
relates  to information supplied by, such indemnifying
party                                                  or
indemnified  party, and the parties' relative intent,
knowledge, access  to information and opportunity to correct
or prevent  any such  action, statement or omission.  The
amount paid or  payable by  a  party as a result of any
Losses shall be deemed to include any  legal  or other fees
or expenses incurred by such  party                      in
connection  with any Proceeding, to the extent such  party
would have been indemnified for such expenses under Section
6(c) if the indemnification  provided  for  in  Section
6(a)  or  6(b)                                           was
available to such party. The parties hereto agree that  it
would not  be  just  and  equitable if contribution
pursuant  to  this Section  6(d) were determined by pro rata
allocation  or  by  any other  method  of allocation that
does not take  account  of  the equitable considerations
referred to in the immediately preceding paragraph.
Notwithstanding the provision of this Section  6(d), an
indemnifying  party that is a selling holder  of
Registrable Securities  shall  not be required to contribute
any  amount                                              in
excess  of the amount by which the net proceeds received by
such indemnifying  party exceeds the amount of any damages
that  such indemnifying party has otherwise been required to
pay by  reasons of such untrue or alleged untrue statement
or omission or alleged omission.   No  person  guilty  of
fraudulent  misrepresentation (within the meaning of Section
11(f) of the Securities Act) shall be entitled to
contribution from any Person who was not guilty of such
fraudulent misrepresentation.

          7.   Information by Holder.  Each holder of
Registrable Securities  shall  furnish to the Acquiror and
to  the  managing underwriter  such  information  regarding
such  holder  and  the distribution  proposed  by such
holder as  the  Acquiror  or  the managing  underwriter may
reasonably request in  writing  and                      as
shall be reasonably required in connection with any
registration, qualification or compliance referred to in
Section 3.

          8.    Rule  144  Reporting.   With  a  view  to
making
available  the benefits of certain rules and regulations  of
the Securities and Exchange Commission (the "Commission")
which  may permit the sale of restricted securities (as that
term is defined in Rule 144(a)(3) under the Securities Act)
to the public without registration, the Company agrees to :
          (a)   make  and  keep public information
available  as
those terms are understood in Rule 144 under the Securities
Act, at  all  times  from  and after ninety (90)  days
following  the effective date of the first registration
under the Securities Act filed  by  the Company for an
offering of its securities  to  the general public;

          (b)   use  its best efforts to file with the
Commission
in  a  timely manner all reports and other documents
required  of the  Company under the Securities Act and the
Exchange Act at any time  after it has become subject to
such reporting requirements; and

          (c)   so  long as any holder of Registrable
Securities
owns  any  restricted  securities, furnish to  such  holder
upon request  a written statement by the Acquiror as to its
compliance with the reporting requirements of Rule 144 (at
any time from and after  ninety (90) days following the
effective date of the first registration  statement filed by
the Company for an  offering  of its  securities to the
general public), and of the Securities Act and the Exchange
Act (at any time after it has become subject  to such
reporting requirements), a copy of the most recent annual or
quarterly  report  of the Acquiror, and such  other  reports
and documents so filed as a holder may reasonably request in
availing itself of any rule or regulation of the Commission
allowing  such holder to sell any such securities without
registration.

          9.    Representations and Warranties of Acquiror.   The
Acquiror   hereby  represents  and  warrants   to   the
Company
Stockholders, as of the date hereof, as follows:

          (a)   Acquiror  has the necessary corporate  power
and
authority   to  enter  into  this  Agreement,  to   perform   its
obligations   hereunder  and  to  consummate   the
transactions
contemplated  hereby.   The  execution  and  delivery   of
this Agreement  by  Acquiror and the consummation by
Acquiror  of  the transactions  contemplated  hereby have
been  duly  and  validly authorized  by  all  necessary
corporate  action  and  no  other corporate  proceedings on
the part of Acquiror are  necessary  to authorize  this
Agreement  or  to  consummate  the  transactions
contemplated hereby.  This Agreement have been duly executed
and delivered  by  Acquiror  and,  assuming  the  due
authorization, execution  and  delivery by the Company
Stockholders,  constitute legal, valid and binding
obligations of Acquiror, enforceable  in accordance with
their terms, except as such enforceability may be limited by
bankruptcy, insolvency, reorganization, moratorium and other
similar  laws  of  general applicability  relating  to  or
affecting  creditors' rights generally and by the
application  of general principles of equity.

          (b)   The  execution and delivery of this
Agreement  by
Acquiror  do  not,  and  the  performance  by  Acquiror  of   its
obligations under this Agreement will not, (i) conflict
with  or violate  the certificate of incorporation or bylaws
of  Acquiror, (ii)  conflict with or violate any law,
statute, ordinance, rule, regulation,  order,  judgment  or
decree  whether  national                                     or
foreign, applicable to Acquiror or its assets and
properties,  or (iii)  result in any breach of or constitute
a default under  any note,  bond,  mortgage,  indenture,
contract,  agreement,  lease, license,  permit, franchise or
other instrument or obligation  to
which  Acquiror is a party or by which Acquiror is bound,
or  by which any of its properties or Assets is subject.
          10.   Definitions.  The following terms shall have
the following meanings for purposes of this Agreement:
          "Affiliate" means, with respect to a specified
Person, any  Person  controlling, controlled by or under
common  control with such Person.
          "Exchange  Act"  means the Securities Exchange
Act  of 1934, as amended from time to time.
          "Person"   means   an  individual,  a
partnership,   a corporation, a limited liability company,
an association, a joint stock  company,  a  trust,  a  joint
venture,  an  unincorporated organization and a governmental
entity or any department,  agency or political subdivision
thereof.
          "Registrable Securities" means all shares  of
Acquiror Common  Stock held at the relevant time by a
Company Stockholder, and  any other issued or issuable
shares of Acquiror Common Stock issued   in  connection
with  the  Merger  held  by  a
Company
Stockholder at the relevant time, either at the time  of
initial issuance  or  subsequently, by way of a stock
dividend  or  stock split   or   in   connection  with  a
combination   of
shares,
recapitalization, merger, consolidation or other
reorganization. As to any particular Registrable Securities,
such securities will cease   to   be  Registrable
Securities  when  they  have   been transferred in a public
offering registered under the  Securities Act  or  in  a
sale made through a broker, dealer or market-maker pursuant
to Rule 144 under the Securities Act.  For purposes  of this
Agreement, a Company Stockholder will be  deemed  to  be  a
holder   of   Registrable   Securities  whenever   such
Company
Stockholder has the right to acquire directly or indirectly
such Registrable Securities (upon conversion or exercise in
connection with a transfer of securities or otherwise, but
disregarding  any restrictions  or  limitations upon the
exercise of  such  right), whether or not such acquisition
has actually been effected.

          "Securities Act" means the Securities Act of
1933,  as amended from time to time.

          "SEC" means the Securities and Exchange
Commission.

          "Company Stockholders" means all of the
stockholders of the  Company  listed on Schedule 1 hereto
and  any  successor  or permitted  assignee of any of their
rights hereunder  that  holds Registrable Securities.

          11.   Amendments and Waivers.  The provisions  of
this Agreement, including the provisions of this sentence,
may not  be amended,  modified or supplemented, and waivers
or  consents  to departures  from the provisions hereof may
not be  given  without the  written  consent  of Acquiror
and the  Company  Stockholders holding  a  majority  in
amount of the  outstanding  Registrable Securities.

          12.   Notices.   All  notices and other
communications provided  for or permitted hereunder shall be
made in writing  by hand-delivery, registered first-class
mail, telex, telecopier, or any   courier  guaranteeing
overnight  delivery,  addressed                           as
follows:

               (i)  if to Acquiror:
                         Hagler Bailly, Inc. 1530
                    Wilson Boulevard Arlington,
                    Virginia  22209
               Telecopier No.:  (703) 528-8573
Attention:  Stephen V.R. Whitman, Esq.
                With  a  copy (which shall not
constitute notice) to:
               Hogan & Hartson L.L.P.
             555 Thirteenth Street, N.W.
                    Washington, D.C.  20004
                    Telecopier No.:  (202) 637-
                    5910 Attention:  David B.H.
                    Martin, Jr., Esq.
                    
          (ii) if to the Stockholders'
Representative:

                    Apogee Research, Inc.
                    4350 East West Highway Bethesda, Maryland  20814
                    Telecopier No.:  (301) 654-9355 Attention:  Richard
                    R. Mudge
                    
          All such notices and communications shall be deemed  to have
been  duly  given:  at  the  time  delivered  by  hand,  if personally
delivered;  three  (3)  business  days  after   being deposited in the
mail, postage prepaid, if mailed; when  answered back, if telexed; when
receipt is acknowledged, if telecopied; or at   the   time  delivered,
if  delivered  by  an  air                                courier
guaranteeing overnight delivery.

          13.  Other Registration Rights.  Except as provided  in this
Agreement, Acquiror will not grant to any Persons the right to  request
Acquiror to register any equity  securities  of  the Company,  or any
securities convertible or exchangeable  into  or exercisable  for  such
securities,  which  are  materially  more favorable to such Persons than
the rights granted to the  holders of  Registrable  Securities hereunder
without the  prior  written consent  of the holders of at least a
majority of the Registrable Securities,  unless Acquiror agrees to amend
this  Agreement  to grant  such  more favorable rights to the holders of
Registrable Securities, in lieu of the rights granted hereunder.

          14.   Transfer  or  Assignment of Registration  Rights.
The  rights  granted  to  a holder of Registrable  Securities  by
Acquiror hereunder may be transferred or assigned by such  holder in
connection with the transfer or assignment of all or  any  of the
Registrable Securities in accordance with applicable law and any
agreements  between such holder and the  Acquiror,  provided that  the
Acquiror is given written notice at  the  time  of  or within  a
reasonable  time after said  transfer  or  assignment, stating  the name
and address of the transferee or assignee  and, provided further, that
the transferee or assignee of such  rights assures the obligation of
such holder under this Agreement  by  a written agreement reasonably
acceptable to the Acquiror.

          15.   Successors  and  Assigns.  This  Agreement  shall
inure  to  the benefit of and be binding upon the successors  and
permitted  assigns  of  each of the parties,  including,  without
limitation  and  without  the  need for  an  express  assignment,
Affiliates   of  the  Company  Stockholders.   If   any   Company
Stockholder shall acquire Registrable Securities, in any  manner,
whether  by  operation  of  law  or otherwise,  such  Registrable
Securities  shall  be held subject to all of the  terms  of  this
Agreement,  and by taking and holding such Registrable Securities
such Person shall be entitled to receive the benefits hereof  and shall
be conclusively deemed to have agreed to be bound by all of the terms
and provisions hereof.
          16.  Severability. Whenever possible, each provision of this
Agreement  shall be interpreted in such  manner  as  to  be effective
and valid under applicable law, but if any provision of this  Agreement
is  held to be prohibited by  or  invalid  under applicable law, such
provision shall be ineffective only  to  the extent  of  such
prohibition or invalidity, without  invalidating the remainder of this
Agreement.
          17.   Counterparts.  This Agreement may be executed  in any
number of counterparts and by the parties hereto in separate
counterparts, each of which when so executed shall be  deemed  to be  an
original and all of which taken together shall constitute one and the
same agreement.
          18.   Headings.  The headings in this Agreement are for
convenience  reference  only and shall  not  limit  or  otherwise affect
the meaning hereof.
          19.   Governing Law.  This Agreement shall be  governed by,
and  construed in accordance with, the laws of the State  of Maryland,
without  giving  effect  to  the  conflicts  of   laws provisions
thereof.
          20.    Specific   Performance.   The   parties   hereto
acknowledge that there would be no adequate remedy at law if  any party
fails  to  perform any of its obligations  hereunder,  and accordingly
agree  that each party, in  addition  to  any  other remedy to which it
may be entitled at law or in equity, shall  be entitled to compel
specific performance of the obligations of any other party under this
Agreement in accordance with the terms and conditions of this Agreement
in any court of the United States or any State thereof having
jurisdiction.
          21.   Entire Agreement.  This Agreement is intended  by the
parties as a final expression or their agreement and intended to  be  a
complete and exclusive statement of the agreement  and understanding  of
the parties hereto in respect  of  the  subject matter  contained
herein.  This Agreement supersedes  all  prior agreements and
understandings between the parties with respect to such subject matter.
          IN  WITNESS  WHEREOF, each of the  parties  hereto  has
executed  this  Registration Rights  Agreement,  or  caused  this
Registration Rights Agreement to be duly executed on its  behalf, as of
the date first written above.
                              HAGLER BAILLY, INC.
                            By:  /s/Henri-Claude Bailly
                                      Name:  Henri-Claude Bailly
                              Title:  President and Chief Executive

                              Officer

                              

                              STOCKHOLDERS' REPRESENTATIVE



                              By: /s/ Richard R. Mudge
                              Name: Richard R. Mudge