Document:

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                                                                     EXHIBIT 4.5

                    AGREEMENT CONCERNING REGISTRATION RIGHTS

         This Agreement Concerning Registration Rights (the "Agreement") is
entered into and made effective as of October 27, 2000 by and between
HORNBECK-LEEVAC Marine Services, Inc., a Delaware corporation (the "Company"),
SCF-IV, L.P., a Delaware limited partnership ("SCF"), JOINT ENERGY DEVELOPMENT
INVESTMENTS II LIMITED PARTNERSHIP, a Delaware limited partnership, ("JEDI-II"),
SUNDANCE ASSETS, L.P., a Delaware limited partnership, as successor-in-interest
to Enron Capital Trade & Resources Corp. ("Sundance"), Todd M. Hornbeck, Troy A.
Hornbeck (collectively, Todd and Troy Hornbeck are referred to as the
"Hornbecks") and CARI INVESTMENT COMPANY, a Louisiana corporation ("Cari").

         WHEREAS, the Company and SCF are entering into that certain
Registration Rights Agreement dated of even date herewith (the "2000 Agreement")
that provides for demand registration rights and piggy-back registration rights
on behalf of SCF and certain other persons; and

         WHEREAS, the Company, JEDI-II and Sundance are parties to that certain
Registration Rights Agreement dated June 5, 1998 (the "1998 Agreement"), that
provides for demand registration rights and piggy-back registration rights on
behalf of JEDI-II and Sundance, respectively; and

         WHEREAS, the Company, the Hornbecks and Cari are parties to that
certain Stockholders' Agreement dated June 5, 1997 (the "1997 Agreement," and
together with the 1998 Agreement and the 2000 Agreement, the "RRAs"), that
provides for demand registration rights and piggy-back registration rights on
behalf of the Hornbecks and Cari and certain other persons; and

         WHEREAS, SCF, JEDI-II, Sundance, the Hornbecks and Cari (each
individually a "Party," and collectively, the "Parties") desire to set forth
certain agreements concerning their respective rights in the event the Company
files a registration statement.

         NOW, THEREFORE, in consideration of the mutual covenants herein
contained and for other good and valuable consideration the receipt and
sufficiency of which are hereby acknowledged, the parties to this Agreement
agree as follows:

         1. Notwithstanding the terms and conditions contained in the individual
RRAs, any Party electing to participate in a registration as described herein
agrees to be bound by the terms and conditions of this Agreement; provided
however, that nothing in this Agreement shall derogate from or modify the terms
and conditions set forth in the Stockholders' and Warrantholders' Agreement
dated June 5, 1998 among the Company and the other parties thereto.

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         2. If the Company proposes to file a registration statement under the
Securities Act of 1933, as amended, with respect to an offering by the Company
for its own account, or in response to a demand by any of the Parties under any
provision of the RRAs, of any class of equity security, including any
securities convertible into or exchangeable for any equity security (other than
a registration statement on Forms S-4 or S-8 (or their successor forms) or filed
in connection with an exchange offer or an offering of securities solely to the
Company's existing stockholders), then the Company shall in each case give
written notice of such proposed filing to the Parties and other "Holders" of
"Registrable Securities," as such terms are defined under each of the RRAs, at
least twenty (20) days before the anticipated filing date, and such notice shall
offer such Parties and other Holders the opportunity to register such number of
Registrable Securities as each such Party or other Holder may request (a
"Piggy-back Registration"). Upon notice from the Company to each of the Parties
or other Holders, each Party or other Holder may request a Piggy-back
Registration. In accordance with each of the RRAs, the Company shall use
commercially reasonable efforts to cause the managing underwriter or
underwriters of a proposed underwritten offering to permit the Parties and other
Holders of Registrable Securities requested to be included in the registration
for such offering to include such securities in such offering on the same terms
and conditions as any similar securities of the Company or the Party who
demanded registration under one of the RRAs. Notwithstanding the foregoing, if
the managing underwriter or underwriters of such offering delivers a written
opinion to the Company and the Parties that the total amount of securities which
the Company and the Parties and any other Holders intend to include in such
offering is sufficiently large to materially and adversely affect the success of
such offering, then the amount of Registrable Securities to be offered shall be
reduced in accordance with Section 3 hereof.

         3. In the event of a registration initiated pursuant to the exercise of
any demand registration rights, whether by a Party or a third party, then (i)
any securities to be registered by any person or entity who is not a "Holder"
under any RRA (other than the party exercising their demand rights) shall be
reduced first, (ii) any securities to be registered by the Company shall then be
reduced prior to effecting any reduction in the number of securities to be
registered by the Parties and the other Holders and (iii) any further reduction
required shall be made pro-rata among the Parties and the other Holders in
proportion to the number of Registrable Securities for which they requested
registration. In the event of a registration not initiated pursuant to the
exercise of any demand registration rights (such as a Company-initiated
registration or a "Company Registration" as contemplated by the 1997 Agreement
and the 2000 Agreement) then (i) any securities to be offered by any person or
entity other than a Party, any other Holder or the Company shall be reduced
first, (ii) any further reduction required shall be made pro-rata among the
Parties and the other Holders in proportion to the number of shares of
Registrable Securities for which they requested registration, and (iii) any
further reduction required shall be made with respect to the securities to be
registered by the Company. The total amount of the reduction shall be the amount
which the managing underwriter reasonably believes is necessary so as not to
materially and adversely affect the success of the offering.

         4. Notwithstanding Section 3 hereof, if any RRA is modified in a manner
that increases the number or kind of securities subject to registration, then
with respect to the

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reductions to be effected among the Parties and the other Holders, such
additional securities shall be the first to be excluded from registration when
reductions are effected.

         5. The provisions of this Agreement shall be binding upon and inure to
the benefit of the Parties, the Company and those other Holders who elect to
exercise any rights hereunder or to participate in any registration of Company
securities and upon their respective heirs, legal representatives, successors
and assigns, and is not intended to confer upon any other Person any right or
remedies hereunder.

         6. This Agreement, together with the other agreements referenced
herein, constitutes the entire agreement and supersedes all prior agreements,
understandings, both written and oral, among the parties with respect to the
subject matter hereof.

         7. Notwithstanding anything else in this Agreement, this Agreement will
only become effective and binding on the parties hereto upon the closing of the
sale by the Company of 8,150,944 shares of the Company's common stock to SCF as
part of a private placement of up to $35,000,000 in common stock.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]

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         IN WITNESS WHEREOF, the Company and the Parties have executed this
Agreement as of the date first above written.

                        COMPANY:

                        HORNBECK-LEEVAC MARINE SERVICES, INC.,
                        a Delaware corporation

                        By: /s/ Christian G. Vaccari
                           ---------------------------------------------------
                                Christian G. Vaccari
                                Chief Executive Officer

                        SCF:

                        SCF-IV, L.P.,
                        a Delaware limited partnership

                        By:     SCF-IV, G.P., Limited Partnership,
                                its general partner

                                By:      L.E. Simmons & Associates
                                         Incorporated, its general partner

                                          By: /s/ Anthony F. DeLuca
                                             ---------------------------------
                                                  Anthony F. DeLuca
                                                  Managing Director

                        JEDI-II:

                        JOINT ENERGY DEVELOPMENT
                        INVESTMENTS II LIMITED PARTNERSHIP,
                        a Delaware limited partnership

                        By:     Enron Capital Management II Limited
                                Partnership, its general partner

                                By: /s/ Jesse E. Neyman
                                   ------------------------------------------
                                Name:   Jesse E. Neyman
                                Title:  Vice President

                                       4
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          [SIGNATURE PAGE TO AGREEMENT CONCERNING REGISTRATION RIGHTS]

                      SUNDANCE:

                      SUNDANCE ASSETS, L.P.,
                      a Delaware limited partnership, as successor-in-interest
                      to Enron Capital Trade & Resources Corp.

                      By:   Ponderosa Assets, L.P., its General Partner

                             By:   Enron Ponderosa Management Holdings, Inc.,
                                   its General Partner

                                   By: /s/ Steven H. Pruett
                                       ----------------------------------------
                                   Name:   Steven H. Pruett
                                   Title:  Vice President

                      HORNBECKS:

                      /s/ Todd M. Hornbeck
                      ---------------------------------------------------------
                      Todd M. Hornbeck

                      /s/ Todd M. Hornbeck
                      ---------------------------------------------------------
                      Troy A. Hornbeck, by
                      Todd M. Hornbeck,
                      Attorney-in-Fact

                      CARI:

                      CARI INVESTMENT COMPANY,
                      a Louisiana corporation

                      By: /s/ Christian G. Vaccari
                         ------------------------------------------------------
                      Name:   Christian G. Vaccari
                      Title:  President

                                       5<PAGE>

                                                                    EXHIBIT 10.9

                           INDEMNIFICATION AGREEMENT

     THIS AGREEMENT (the "Agreement") is made and entered into this _____ day of
__________, 2002 between Hornbeck Offshore Services, Inc., a Delaware
corporation ("the Company") and __________ ("Indemnitee").

                                WITNESSETH THAT:

     WHEREAS, Indemnitee performs a valuable service for the Company; and

     WHEREAS, the Board of Directors of the Company has adopted Bylaws (the
"Bylaws") providing for the indemnification of the directors, executive officers
and other key employees of the Company to the maximum extent authorized by
Section 145 of the Delaware General Corporation Law, as amended (the "DGCL");
and

     WHEREAS, the Board of Directors has determined that for purposes of
indemnification protection afforded by the Company, including as specifically
used in this Agreement, the term "director" shall refer to members of the Board
of Directors and any advisory director serving by appointment of the Board; and

     WHEREAS, the Second Amended Bylaws (the "Bylaws") and the DGCL by their
nonexclusive nature, permit contracts between the Company and the directors and
officers of the Company with respect to indemnification of such directors and
officers; and

     WHEREAS, in accordance with the authorization as provided by the DGCL, the
Company may purchase and maintain a policy or policies of director's and
officer's liability insurance ("D & O Insurance"), covering certain liabilities
which may be incurred by its directors and/or officers in the performance of
their obligations as directors and/or officers of the Company; and

     WHEREAS, as a result of recent developments affecting the terms, scope and
availability of D & O Insurance, there exists general uncertainty as to the
extent of protection afforded Company directors and officers by such D & O
Insurance and said uncertainty also exists under statutory and bylaw
indemnification provisions; and

     WHEREAS, in recognition of past services and in order to induce Indemnitee
to continue to serve as a director and/or officer of the Company, the Company
has determined and agreed to enter into this contract with Indemnitee;

     NOW, THEREFORE, in consideration, of Indemnitee's service as a director
and/or officer after the date hereof, the parties hereto agree as follows;

     1.  INDEMNITY OF INDEMNITEE. The Company hereby agrees to hold harmless and
indemnify Indemnitee to the full extent authorized or permitted by the
provisions of the DGCL, as such may be amended from time to time, and Section
6.10 of the Bylaws, as such may be amended. In furtherance of the foregoing
indemnification, and without limiting the generality thereof:

         (a)  Proceedings Other Than Proceedings by or in the Right of the
Company. Indemnitee shall be entitled to the rights of indemnification provided
in this Section 1(a) if, by reason of his

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Corporate Status (as hereinafter defined), he is, or is threatened to be made,
a party to or participant in any Proceeding (as hereinafter defined) other than
a Proceeding by or in the right of the Company. Pursuant to this Section 1(a),
Indemnitee shall be indemnified against all Expenses (as hereinafter defined),
judgments, penalties, fines and amounts paid in settlement actually and
reasonably incurred by him or on his behalf in connection with such Proceeding
or any claim, issue or matter therein, if he acted in good faith and in a manner
he reasonably believed to be in or not opposed to the best interests of the
Company and, with respect to any criminal Proceeding, had no reasonable cause
to believe his conduct was unlawful.

         (b)  Proceedings by or in the Right of the Company. Indemnitee shall be
entitled to the rights of indemnification provided in this Section 1(b) if, by
reason of his Corporate Status, he is, or is threatened to be made, a party to
or participant in any Proceeding brought by or in the right of the Company to
procure a judgment in its favor. Pursuant to this Section 1(b), Indemnitee shall
be indemnified against all Expenses actually and reasonably incurred by him or
on his behalf in connection with such Proceeding if he acted in good faith and
in a manner he reasonably believed to be in or not opposed to the best interests
of the Company; provided, however, that, if applicable law so provides, no
indemnification against such Expenses shall be made in respect of any claim,
issue or matter in such Proceeding as to which Indemnitee shall have been
adjudged to be liable to the Company unless and to the extent that the Court of
Chancery of the State of Delaware, or the court in which such Proceeding shall
have been brought or is pending, shall determine that such indemnification may
be made.

         (c)  Indemnification for Expenses of a Party Who is Wholly or Partly
Successful. Notwithstanding any other provision of this Agreement, to the extent
that Indemnitee is, by reason of his Corporate Status, a party to and is
successful, on the merits or otherwise, in any Proceeding, he shall be
indemnified to the maximum extent permitted by law against all Expenses actually
and reasonably incurred by him or on his behalf in connection therewith. If
Indemnitee is not wholly successful in such Proceeding but is successful, on the
merits or otherwise, as to one or more but less than all claims, issues or
matters in such Proceeding, the Company shall indemnify Indemnitee against all
Expenses actually and reasonably incurred by him or on his behalf in connection
with each successfully resolved claim, issue or matter. For purposes of this
Section and without limitation, the termination of any claim, issue or matter in
such a Proceeding by dismissal, with or without prejudice, shall be deemed to be
a successful result as to such claim, issue or matter.

     2.  ADDITIONAL INDEMNITY.

         (a)  Subject only to the exclusions set forth in Section 2(b) hereof,
the Company hereby further agrees to hold harmless and indemnify Indemnitee
against any and all expenses, judgments, fines and amounts paid in settlement
actually and reasonably incurred by Indemnitee in connection with any Proceeding
(including an action by or on behalf of the Company) to which Indemnitee is, was
or at any time becomes a party, or is threatened to be made a party, by reason
of his Corporate Status; provided, however, that with respect to actions by or
on behalf of the Company, indemnification of Indemnitee against any judgments
shall be made by the Company only as authorized in the specific case upon a
determination that Indemnitee acted in

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good faith and in a manner he reasonably believed to be in or not opposed to the
best interests of the Company; and

          (b) No indemnity pursuant to this Section 2 shall be paid by the
Company:

               (i) In respect to remuneration paid to Indemnitee if it shall be
determined by a final judgment or other final adjudication that such
remuneration was in violation of law;

               (ii) On account of any suit in which judgment is rendered against
Indemnitee for an accounting of profits made from the purchase or sale by
Indemnitee of securities of the Company pursuant to the provisions of Section
16(b) of the Securities Exchange Act of 1934 and amendments thereto or similar
provisions of any federal, state or local statutory law;

               (iii) On account of Indemnitee's conduct which is finally
adjudged to have been knowingly fraudulent or deliberately dishonest, or to
constitute willful misconduct; or

               (iv) If a final decision by a court having jurisdiction in the
matter shall determine that such indemnification is not lawful.

     3. CONTRIBUTION. If the indemnification provided in Sections 1 and 2 is
unavailable and may not be paid to Indemnitee for any reason other than those
set forth in paragraphs (i), (ii), (iii) and (iv) of Section 2(b), then in
respect to any Proceeding in which the Company is jointly liable with
Indemnitee (or would be if joined in such Proceeding), the Company shall
contribute to the amount of Expenses, judgments, fines and amounts paid in
settlement actually and reasonably incurred and paid or payable by Indemnitee in
such proportion as is appropriate to reflect (i) the relative benefits received
by the Company on the one hand and by the Indemnitee on the other hand from the
transaction from which such Proceeding arose, and (ii) the relative fault of the
Company on the one hand and of the Indemnitee on the other hand in connection
with the events which resulted in such Expenses, judgments, fines or settlement
amounts, as well as any other relevant equitable considerations. The relative
fault of the Company on the one hand and of the Indemnitee on the other hand
shall be determined by reference to, among other things, the parties' relative
intent, knowledge, access to information and opportunity to correct or prevent
the circumstances resulting in such Expenses, judgments, fines or settlement
amounts. The Company agrees that it would not be just and equitable if
contribution pursuant to this Section 3 were determined by pro rata allocation
or any other method of allocation which does not take account of the foregoing
equitable considerations.

     4. INDEMNIFICATION FOR EXPENSES OF A WITNESS. Notwithstanding any other
provision of this Agreement, to the extent that Indemnitee is, by reason of his
Corporate Status, a witness in any Proceeding to which Indemnitee is not a
party, he shall be indemnified against all Expenses actually and reasonably
incurred by him or on his behalf in connection therewith.

     5. ADVANCEMENT OF EXPENSES. The Company shall advance all reasonable
Expenses incurred by or on behalf of Indemnitee in connection with any
Proceeding by reason of Indemnitee's Corporate Status within 10 days after the
receipt by the Company of a statement or statements from Indemnitee requesting
such advance or advances from time to time, whether prior to or after final
disposition of such Proceeding. Such statement or statements shall reasonably
evidence the Expenses incurred by Indemnitee and shall include or be preceded or

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accompanied by an undertaking by or on behalf of Indemnitee to repay any
Expenses advanced if it shall ultimately be determined that Indemnitee is not
entitled to be indemnified against such Expenses. Any advances and undertakings
to repay pursuant to this Section 5 shall be unsecured and interest free.
Notwithstanding the foregoing, the obligation of the Company to advance Expenses
pursuant to this Section 5 shall be subject to the condition that, if, when and
to the extent that the Company determines that Indemnitee would not be permitted
to be indemnified under applicable law, the Company shall be entitled to be
reimbursed, within 30 days of such determination, by Indemnitee (who hereby
agrees to reimburse the Company) for all such amounts theretofore paid;
provided, however, that if Indemnitee has commenced or thereafter commences
legal proceedings in a court of competent jurisdiction to secure a determination
that Indemnitee should be indemnified under applicable law, any determination
made by the Company that Indemnitee would not be permitted to be indemnified
under applicable law shall not be binding and Indemnitee shall not be required
to reimburse the Company for any advance of Expenses until a final judicial
determination is made with respect thereto (as to which all rights of appeal
therefrom have been exhausted or lapsed).

     6. PROCEDURE FOR DETERMINATION OF ENTITLEMENT TO INDEMNIFICATION.

          (a) To obtain indemnification (including, but not limited to, the
advancement of Expenses and contribution by the Company) under this Agreement,
Indemnitee shall submit to the Company a written request, including therein or
therewith such documentation and information as is reasonably available to
Indemnitee and is reasonably necessary to determine whether and to what extent
Indemnitee is entitled to indemnification. The Secretary of the Company shall,
promptly upon receipt of such a request for indemnification, advise the Board of
Directors in writing that Indemnitee has requested indemnification.

          (b) Upon written request by Indemnitee for indemnification pursuant to
the first sentence of Section 6(a) hereof, a determination, if required by
applicable law, with respect to Indemnitee's entitlement thereto shall be made
in the specific case: (i) if a Change in Control (as hereinafter defined) shall
have occurred, by Independent Counsel (as hereinafter defined) in a written
opinion to the Board of Directors, a copy of which shall be delivered to
Indemnitee (unless Indemnitee shall request that such determination be made by
the Board of Directors or the stockholders, in which case the determination
shall be made in the manner provided in Clause (ii) below), or (ii) if a Change
in Control shall not have occurred, (A) by the Board of Directors by a majority
vote of a quorum consisting of Disinterested Directors (as hereinafter defined),
or (B) if a quorum of the Board of Directors consisting of Disinterested
Directors is not obtainable or, even if obtainable, said Disinterested Directors
so direct, by Independent Counsel in a written opinion to the Board of
Directors, a copy of which shall be delivered to Indemnitee, or (C) if so
directed by said Disinterested Directors, by the stockholders of the Company;
and, if it is determined that Indemnitee is entitled to indemnification, payment
to Indemnitee shall be made within 10 days after such determination. Indemnitee
shall cooperate with the person, persons or entity making such determination
with respect to Indemnitee's entitlement to indemnification, including providing
to such person, persons or entity upon reasonable advance request any
documentation or information which is not privileged or otherwise protected from
disclosure and which is reasonably available to Indemnitee and reasonably
necessary to such

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determination. Any Independent Counsel, member of the Board of Directors, or
stockholder of the Company shall act reasonably and in good faith in making a
determination under the Agreement of the Indemnitee's entitlement to
indemnification. Any costs or expenses (including attorneys' fees and
disbursements) incurred by Indemnitee in so cooperating with the person, persons
or entity making such determination shall be borne by the Company (irrespective
of the determination as to Indemnitee's entitlement to indemnification) and the
Company hereby indemnifies and agrees to hold Indemnitee harmless therefrom.

          (c) If the determination of entitlement to indemnification is to be
made by Independent Counsel pursuant to Section 6(b) hereof, the Independent
Counsel shall be selected as provided in this Section 6(c). If a Change in
Control shall not have occurred, the Independent Counsel shall be selected by
the Board of Directors, and the Company shall give written notice to Indemnitee
advising him of the identity of the Independent Counsel so selected. If a Change
in Control shall have occurred, the Independent Counsel shall be selected by
Indemnitee (unless Indemnitee shall request that such selection be made by the
Board of Directors, in which event the preceding sentence shall apply), and
Indemnitee shall give written notice to the Company advising it of the identity
of the Independent Counsel so selected. In either event, Indemnitee or the
Company, as the case may be, may, within 10 days after such written notice of
selection shall have been given, deliver to the Company or to Indemnitee, as the
case may be, a written objection to such selection; provided, however, that such
objection may be asserted only on the ground that the Independent Counsel so
selected does not meet the requirements of "Independent Counsel" as defined in
Section 14 of this Agreement, and the objection shall set forth with
particularity the factual basis of such assertion. Absent a proper and timely
objection, the person so selected shall act as Independent Counsel. If a written
objection is made and substantiated, the Independent Counsel selected may not
serve as Independent Counsel unless and until such objection is withdrawn or a
court has determined that such objection is without merit. If, within 20 days
after submission by Indemnitee of a written request for indemnification pursuant
to Section 6(a) hereof, no Independent Counsel shall have been selected, or
Independent Counsel has been selected and objected to, and such objection has
not been resolved, either the Company or Indemnitee may petition the Court of
Chancery of the State of Delaware or other court of competent jurisdiction for
resolution of any objection which shall have been made by the Company or
Indemnitee to the other's selection of Independent Counsel and/or for the
appointment as Independent Counsel of a person selected by the court or by such
other person as the court shall designate, and the person with respect to whom
all objections are so resolved or the person so appointed shall act as
Independent Counsel under Section 6(b) hereof. The Company shall pay any and all
reasonable fees and expenses of Independent Counsel incurred by such Independent
Counsel in connection with acting pursuant to Section 6(b) hereof, and the
Company shall pay all reasonable fees and expenses incident to the procedures of
this Section 6(c), regardless of the manner in which such Independent Counsel
was selected or appointed. Upon the due commencement of any judicial proceeding
or arbitration pursuant to Section 8 of this Agreement, Independent Counsel
shall be discharged and relieved of any further responsibility in such capacity
(subject to the applicable standards of professional conduct then prevailing).

          (d) The Company shall not be required to obtain the consent of the
Indemnitee to the settlement of any Proceeding which the Company has undertaken
to defend if the Company

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assumes full and sole responsibility for such settlement and the settlement
grants the Indemnitee a complete and unqualified release in respect of the
potential liability.

     7. PRESUMPTIONS AND EFFECT OF CERTAIN PROCEEDINGS.

          (a) In making a determination with respect to entitlement to
indemnification hereunder, the person or persons or entity making such
determination shall presume that Indemnitee is entitled to indemnification under
this Agreement if Indemnitee has submitted a request for indemnification in
accordance with Section 6(a) of this Agreement, and the Company shall have the
burden of proof to overcome that presumption in connection with the making by
any person, persons or entity of any determination contrary to that presumption.

          (b) If the person, persons or entity empowered or selected under
Section 6 of this Agreement to determine whether Indemnitee is entitled to
indemnification shall not have made a determination within 30 days after receipt
by the Company of the request therefore, the requisite determination of
entitlement to indemnification shall be deemed to have been made and Indemnitee
shall be entitled to such indemnification, absent (i) a misstatement by
Indemnitee of a material fact, or an omission of a material fact necessary to
make Indemnitee's statement not materially misleading, in connection with the
request for indemnification, or (ii) a prohibition of such indemnification under
applicable law; provided, however, that such 30-day period may be extended for a
reasonable time, not to exceed an additional fifteen (15) days, if the person,
persons or entity making the determination with respect to entitlement to
indemnification in good faith requires such additional time for obtaining or
evaluating documentation and/or information relating thereto; and provided,
further, that the foregoing provisions of this Section 7(b) shall not apply (i)
if the determination of entitlement to indemnification is to be made by the
stockholders pursuant to Section 6(b) of this Agreement and if (A) within
fifteen (15) days after receipt by the Company of the request for such
determination the Board of Directors or the Disinterested Directors, if
appropriate, resolve to submit such determination to the stockholders for their
consideration at an annual meeting thereof to be held within seventy-five (75)
days after such receipt and such determination is made thereat, or (B) a special
meeting of stockholders is called within fifteen (15) days after such receipt
for the purpose of making such determination, such meeting is held for such
purpose within sixty (60) days after having been so called and such
determination is made thereat, or (ii) if the determination of entitlement to
indemnification is to be made by Independent Counsel pursuant to Section 6(b) of
this Agreement.

          (c) The termination of any Proceeding or of any claim, issue or matter
therein, by judgment, order, settlement (with or without court approval),
conviction, or upon a plea of nolo contendere or its equivalent, shall not
(except as otherwise expressly provided in this Agreement) of itself adversely
affect the right of Indemnitee to indemnification or create a presumption that
Indemnitee did not act in good faith and in a manner which he reasonably
believed to be in or not opposed to the best interests of the Company or, with
respect to any criminal Proceeding, that Indemnitee had reasonable cause to
believe that his conduct was unlawful.

          (d) For purposes of any determination of good faith, Indemnitee shall
be deemed to have acted in good faith if a majority of Disinterested Directors,
the stockholders, or Independent Counsel through a written opinion determines
that such person acted in good faith and in a manner he reasonably believed to
be in or not opposed to the best interests of the Company, and

                                                                          Page 6
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in the case of a criminal proceeding, such person had no reasonable cause to
believe his conduct was unlawful. In addition, the knowledge and/or actions, or
failure to act, of any director, officer, agent or employee of the Enterprise
shall not be imputed to Indemnitee for purposes of determining the right to
indemnification under this Agreement. The provisions of this Section 7(d) shall
not be deemed to be exclusive or to limit in any way the other circumstances in
which the Indemnitee may be deemed to have met the applicable standard of
conduct set forth in this Agreement.

     8. REMEDIES OF INDEMNITEE.

          (a) In the event that (i) a determination is made pursuant to Section
6 of this Agreement that Indemnitee is not entitled to indemnification under
this Agreement, (ii) advancement of Expenses is not timely made pursuant to
Section 5 of this Agreement, (iii) no determination of entitlement to
indemnification shall have been made pursuant to Section 6(b) of this Agreement
within 90 days after receipt by the Company of the request for indemnification,
(iv) payment of indemnification is not made pursuant to Section 3 or 4 of this
Agreement within 10 days after receipt by the Company of a written request
therefore, or (v) payment of indemnification is not made within 10 days after a
determination has been made that Indemnitee is entitled to indemnification or
such determination is deemed to have been made pursuant to Section 6 or 7 of
this Agreement, Indemnitee shall be entitled to an adjudication in an
appropriate court of the State of Delaware, or in any other court of competent
jurisdiction, of his entitlement to such indemnification. Alternatively,
Indemnitee, at his option, may seek an award in arbitration to be conducted by a
single arbitrator pursuant to the Commercial Arbitration Rules of the American
Arbitration Association. Indemnitee shall commence such proceeding seeking an
adjudication or an award in arbitration within 180 days following the date on
which Indemnitee first has the right to commence such proceeding pursuant to
this Section 8(a). The Company shall not oppose Indemnitee's right to seek any
such adjudication or award in arbitration.

          (b) In the event that a determination shall have been made pursuant to
Section 6(b) of this Agreement that Indemnitee is not entitled to
indemnification, any judicial proceeding or arbitration commenced pursuant to
this Section 8 shall be conducted in all respects as a de novo trial, or
arbitration, on the merits and Indemnitee shall not be prejudiced by reason of
that adverse determination.

          (c) If a determination shall have been made pursuant to Section 6(b)
of this Agreement that Indemnitee is entitled to indemnification, the Company
shall be bound by such determination in any judicial proceeding or arbitration
commenced pursuant to this Section 8, absent (i) a misstatement by Indemnitee of
a material fact, or an omission of a material fact necessary to make
Indemnitee's statement not materially misleading, in connection with the request
for indemnification, or (ii) a prohibition of such indemnification under
applicable law.

          (d) In the event that Indemnitee, pursuant to this Section 8, seeks a
judicial adjudication of or an award in arbitration to enforce his rights under,
or to recover damages for breach of, this Agreement, Indemnitee shall be
entitled to recover from the Company, and shall be indemnified by the Company
against, any and all expenses (of the types described in the definition of
Expenses in Section 14 of this Agreement) actually and reasonably incurred by
him in such judicial adjudication or arbitration, but only if he prevails
therein. If it shall be determined in

                                                                          Page 7
<PAGE>
said judicial adjudication or arbitration that Indemnitee is entitled to receive
part but not all of the indemnification sought, the expenses incurred by
Indemnitee in connection with such judicial adjudication or arbitration shall
be appropriately prorated. The Company shall indemnify Indemnitee against any
and all expenses and, if requested by Indemnitee, shall (within 10 days after
receipt by the Company of a written request therefore) advance such expenses to
Indemnitee, which are incurred by Indemnitee in connection with any action
brought by Indemnitee to recover under any directors' and officers' liability
insurance policies maintained by the Company, regardless of whether Indemnitee
ultimately is determined to be entitled to such indemnification, advancement of
expenses or insurance recovery, as the case may be.

          (e) The Company shall be precluded from asserting in any judicial
proceeding or arbitration commenced pursuant to this Section 8 that the
procedures and presumptions of this Agreement are not valid, binding and
enforceable and shall stipulate in any such court or before any such arbitrator
that the Company is bound by all the provisions of this Agreement.

     9. NON-EXCLUSIVITY; SURVIVAL OF RIGHTS; INSURANCE; SUBROGATION.

          (a) The rights of indemnification as provided by this Agreement shall
not be deemed exclusive of any other rights to which Indemnitee may at any time
be entitled under applicable law, the certificate of incorporation of the
Company, the Bylaws, any agreement, a vote of stockholders or a resolution of
directors, or otherwise. No amendment, alteration or repeal of this Agreement or
of any provision hereof shall limit or restrict any right of Indemnitee under
this Agreement in respect of any action taken or omitted by such Indemnitee in
his Corporate Status prior to such amendment, alteration or repeal. To the
extent that a change in the DGCL, whether by statute or judicial decision,
permits greater indemnification than would be afforded currently under the
Bylaws and this Agreement, it is the intent of the parties hereto that
Indemnitee shall enjoy by this Agreement the greater benefits so afforded by
such change. No right or remedy herein conferred is intended to be exclusive of
any other right or remedy, and every other right and remedy shall be cumulative
and in addition to every other right and remedy given hereunder or now or
hereafter existing at law or in equity or otherwise. The assertion or employment
of any right or remedy hereunder, or otherwise, shall not prevent the concurrent
assertion or employment of any other right or remedy.

          (b) To the extent that the Company maintains an insurance policy or
policies providing liability insurance for directors, officers, employees, or
agents or fiduciaries of the Company or of any other Enterprise which such
person serves at the request of the Company, Indemnitee shall be covered by such
policy or policies in accordance with its or their terms to the maximum extent
of the coverage available for any such director, officer, employee or agent
under such policy or policies.

          (c) In the event of any payment under this Agreement, the Company
shall be subrogated to the extent of such payment to all of the rights of
recovery of Indemnitee, who shall execute all papers required and take all
action necessary to secure such rights, including execution of such documents as
are necessary to enable the Company to bring suit to enforce such rights.

                                                                          Page 8
<PAGE>

          (d) The Company shall not be liable under this Agreement to make any
payment of amounts otherwise indemnifiable hereunder if and to the extent that
Indemnitee has otherwise actually received such payment under any insurance
policy, contract, agreement or otherwise.

     10. EXCEPTION TO RIGHT OF INDEMNIFICATION AND EXPENSE ADVANCEMENT.
Notwithstanding any other provision of this Agreement, Indemnitee shall not be
entitled to indemnification or advancement of expenses under this Agreement with
respect to any Proceeding brought by Indemnitee, or any claim therein, unless
(a) the bringing of such Proceeding or making of such claim shall have been
approved by the Board of Directors or (b) such Proceeding is being brought by
the Indemnitee to assert his rights under this Agreement.

     11. DURATION OF AGREEMENT. All agreements and obligations of the Company
contained herein shall apply to the period Indemnitee is or was a director or
officer of the Company, including any such period prior to this Agreement, (or
the period Indemnitee is or was serving at the request of the Company as a
director, officer, employee or agent of another corporation, partnership, joint
venture, trust or other enterprise) and shall continue thereafter so long as
Indemnitee shall be subject to any Proceeding (or any proceeding commenced under
Section 8 hereof) by reason of his Corporate Status, whether or not he is acting
or serving in any such capacity at the time any liability or expense is incurred
for which indemnification can be provided under this Agreement. This Agreement
shall be binding upon and inure to the benefit of and be enforceable by the
parties hereto and their respective successors (including any direct or indirect
successor by purchase, merger, consolidation or otherwise to all or
substantially all of the business or assets of the Company), assigns, spouses,
heirs, executors and personal and legal representatives. This Agreement shall
continue in effect regardless of whether Indemnitee continues to serve as a
director or officer of the Company or any other Enterprise at the Company's
request.

     12. SECURITY. To the extent requested by the Indemnitee and approved by the
Board of Directors, the Company may at any time and from time to time provide
security to the Indemnitee for the Company's obligations hereunder through an
irrevocable bank line of credit, funded trust or other collateral. Any such
security, once provided to the Indemnitee, may not be revoked or released
without the prior written consent of the Indemnitee.

     13. ENFORCEMENT.

          (a) The Company expressly confirms and agrees that it has entered into
this Agreement and assumed the obligations imposed on it hereby in order to
induce Indemnitee to serve as a director or officer of the Company, and the
Company acknowledges that Indemnitee is relying upon this Agreement in serving
as a director or officer of the Company.

          (b) This Agreement constitutes the entire agreement between the
parties hereto with respect to the subject matter hereof and supersedes all
prior agreements and understandings, oral, written and implied, between the
parties hereto with respect to the subject matter hereof.

     14. DEFINITIONS. For purposes of this Agreement:

          (a) "Change in Control" means a change in control of the Company
occurring after the date of this Agreement of a nature that would be required to
be reported in response to Item 6(e)

                                                                          Page 9
<PAGE>

of Schedule 14A of Regulation 14A (or in response to any similar item on any
similar schedule or form) promulgated under the Securities Exchange Act of 1934
(the "Act"), whether or not the Company is then subject to such reporting
requirement; provided, however, that, without limitation, such a Change in
Control shall be deemed to have occurred if after the date of this Agreement (i)
any "person" (as such term is used in Sections 13(d) and 14(d) of the Act, as
amended) other than a trustee or other fiduciary holding securities under an
employee benefit plan of the Company or a corporation owned directly or
indirectly by the stockholders of the Company in substantially the same
proportions as their ownership of stock of the Company, is or becomes the
"beneficial owner" (as defined in Rule 13d-3 under the Act), directly or
indirectly, of securities of the Company representing 20% or more of the
combined voting power of the Company's then outstanding securities (other than
any such person or any affiliate thereof that is such a 20% beneficial owner as
of the date hereof) without the prior approval of at least two-thirds of the
members of the Board of Directors in office immediately prior to such person
attaining such percentage interest; (ii) there occurs a proxy contest, or the
Company is a party to a merger, consolidation, sale of assets, plan of
liquidation or other reorganization, as a consequence of which members of the
Board of Directors in office immediately prior to such transaction or event
constitute less than a majority of the Board of Directors thereafter; or (iii)
during any period of two consecutive years, other than as a result of an event
described in clause (a)(ii) of this Section 14, individuals who at the beginning
of such period constituted the Board of Directors (including for this purpose
any new director whose election or nomination for election by the Company's
stockholders was approved by a vote of at least two-thirds of the directors then
still in office who were directors at the beginning of such period) cease for
any reason to constitute at least a majority of the Board of Directors. A Change
in Control shall not be deemed to have occurred under item (i) above if the
"person" described under item (i) is entitled to report its ownership on
Schedule 13G promulgated under the Act and such person is able to represent that
it acquired such securities in the ordinary course of its business and not with
the purpose nor with the effect of changing or influencing the control of the
Company, nor in connection with or as a participant in any transaction having
such purpose or effect. If the "person" referred to in the previous sentence
would at any time not be entitled to continue to report such ownership on
Schedule 13G pursuant to Rule 13d-l(b)(3)(i)(B) of the Act, then a Change in
Control shall be deemed to have occurred at such time.

          (b) "Corporate Status" describes the status of a person who is or was
a director, officer, employee or agent or fiduciary of the Company or of any
other corporation, partnership, joint venture, trust, employee benefit plan or
other enterprise which such person is or was serving at the express written
request of the Company, provided that the approval by the Board of Directors of
such position in a resolution adopted by the Board of Directors shall for all
purposes qualify as such a written requirement.

          (c) "Disinterested Director" means a director of the Company who is
not and was not a party to the Proceeding in respect of which indemnification is
sought by Indemnitee.

          (d) "Enterprise" shall mean the Company and any other corporation,
partnership, joint venture, trust, employee benefit plan or other enterprise of
which Indemnitee is or was serving at the express written request of the Company
as a director, officer, employee, agent or fiduciary

                                                                         Page 10
<PAGE>

provided that the approval by the Board of Directors of such position in a
resolution adopted by the Board of Directors shall for all purposes qualify as
such a written requirement.

          (e) "Expenses" shall include all reasonable attorneys' fees,
retainers, court costs, transcript costs, fees of experts, witness fees, travel
expenses, duplicating costs, printing and binding costs, telephone charges,
postage, delivery service fees, and all other disbursements or expenses of the
types customarily incurred in connection with prosecuting, defending, preparing
to prosecute or defend, investigating, participating, or being or preparing to
be a witness in a Proceeding.

          (f) "Independent Counsel" means a law firm, or a member of a law firm,
that is experienced in matters of corporation law and neither presently is, nor
in the past five years has been, retained to represent the Company or Indemnitee
in any matter material to either such party (other than with respect to matters
concerning the Indemnitee under this Agreement, or of other indemnitees under
similar indemnification agreements) or any other party to the Proceeding giving
rise to a claim for indemnification hereunder, or otherwise has any substantial
business or personal relationship with the Company or Indemnitee or any other
party to the Proceeding giving rise to a claim for indemnification hereunder
that could reasonably be considered to influence the independent judgment of the
Independent Counsel. Notwithstanding the foregoing, the term "Independent
Counsel" shall not include any person who, under the applicable standards of
professional conduct then prevailing, would have a conflict of interest in
representing either the Company or Indemnitee in an action to determine
Indemnitee's rights under this Agreement. The Company agrees to pay the
reasonable fees of the Independent Counsel referred to above and to fully
indemnify such counsel against any and all expenses, claims, liabilities and
damages arising out of or relating to this Agreement or its engagement pursuant
hereto.

          (g) "Proceeding" includes any threatened, pending or completed action,
suit, arbitration, alternate dispute resolution mechanism, investigation,
inquiry, administrative hearing or any other actual, threatened or completed
proceeding, whether brought by or in the right of the Company or otherwise and
whether civil, criminal, administrative or investigative, in which Indemnitee
was, is or will be involved as a party or otherwise, by reason of Indemnitee's
Corporate Status, by reason of any action taken by him or of any inaction on his
part while acting as a director or officer of the Company, or by reason of the
fact that he is or was serving as a director, officer, employee or agent of
another Enterprise at the request of the Company, in each case whether or not he
is acting or serving in any such capacity at the time any liability or expense
is incurred for which indemnification can be provided under this Agreement;
including one pending on or before the date of this Agreement and excluding one
initiated by an Indemnitee pursuant to Section 8 of this Agreement to enforce
his rights under this Agreement.

     15. SEVERABILITY. If any provision or provisions of this Agreement shall be
held by a court of competent jurisdiction to be invalid, void, illegal or
otherwise unenforceable for any reason whatsoever: (a) the validity, legality
and enforceability of the remaining provisions of this Agreement (including
without limitation, each portion of any section of this Agreement containing any
such provision held to be invalid, illegal or unenforceable, that is not itself
invalid, illegal or unenforceable) shall not in any way be affected or impaired
thereby and shall remain enforceable to the fullest extent permitted by law; and
(b) to the fullest extent possible,

                                                                         Page 11
<PAGE>

the provisions of this Agreement (including, without limitation, each portion of
any section of this Agreement containing any such provision held to be invalid,
illegal or unenforceable, that is not itself invalid, illegal or unenforceable)
shall be construed so as to give effect to the intent manifested thereby.

     16. MODIFICATION AND WAIVER. No supplement, modification, termination,
waiver or amendment of this Agreement shall be binding unless executed in
writing by both of the parties hereto. No waiver of any of the provisions of
this Agreement shall be deemed or shall constitute a waiver of any other
provisions hereof (whether or not similar) nor shall such waiver constitute a
continuing waiver.

     17. NOTICE BY INDEMNITEE. Indemnitee agrees promptly to notify the company
in writing upon being served with any summons, citation, subpoena, complaint,
indictment, information or other document relating to any Proceeding or matter
which may be subject to indemnification covered hereunder. The failure to so
notify the Company shall not relieve the Company of any obligation which it may
have to the Indemnitee under this Agreement or otherwise.

     18. NOTICES. All notices, requests, demands and other communications
hereunder shall be in writing and shall be deemed to have been duly given if (i)
delivered by hand and receipted for by the party to whom said notice or other
communication shall have been directed, or (ii) mailed by certified or
registered mail with postage prepaid, on the third business day after the date
on which it is so mailed:

          (a) If to Indemnitee, to:

          (b) If to the Company, to:

              Hornbeck Offshore Services, Inc.
              414 North Causeway Boulevard
              Mandeville, Louisiana 70448
              Attention: President and Chief Executive Officer

or to such other address as may have been furnished to Indemnitee by the Company
or to the Company by Indemnitee, as the case may be.

     19. IDENTICAL COUNTERPARTS. This Agreement may be executed in one or more
counterparts, each of which shall for all purposes be deemed to be an original
but all of which together shall constitute one and the same Agreement. Only one
such counterpart signed by the party against whom enforceability is sought needs
to be produced to evidence the existence of this Agreement.

     20. HEADINGS. The headings of the paragraphs of this Agreement are inserted
for convenience only and shall not be deemed to constitute part of this
Agreement or to affect the construction thereof.

                                                                         Page 12
<PAGE>

     21. GOVERNING LAW. The parties agree that this Agreement shall be governed
by, and construed and enforced in accordance with, the laws of the State of
Delaware, without application of the conflict of laws principles thereof.

     22. GENDER. Use of the masculine pronoun shall be deemed to include usage
of the feminine pronoun where appropriate.

     IN WITNESS WHEREOF, the parties hereto have executed this Agreement on and
as of the day and year first above written.

                             HORNBECK OFFSHORE SERVICES, INC.

                              By:
                                 ----------------------------------------
                                 Todd M. Hornbeck,
                                 President and Chief Executive Officer

                              INDEMNITEE

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

                                                                         Page 13

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