EXHIBIT 10.41

     SECURITY AGREEMENT
     (Stock Pledge)

     BY

     HOWELL CORPORATION

     IN FAVOR OF

     BANK ONE, TEXAS, NATIONAL ASSOCIATION

     February 1, 1995


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

     LETTER OF CREDIT FACILITY TO HOWELL CRUDE OIL COMPANY
     -----------------------------------------------------


     TABLE OF CONTENTS

                                                           Page

ARTICLE 1  DEFINITIONS AND INTERPRETATION                   1

     1.1   Terms Defined Above                              1
     1.2   Terms Defined in Credit Agreement                2
     1.3   Additional Defined Terms                         2
     1.4   Undefined Financial Accounting Terms             2
     1.5   Terms Defined in Texas Business and Commerce
           Code                                             2
     1.6   References.                                      2
     1.7   Articles and Sections                            2
     1.8   Number and Gender                                3

ARTICLE 2  SECURITY INTEREST                                3

     2.1   Grant of Security Interest in Collateral         3
     2.2   Delivery of Securities                           3
     2.3   Power of Attorney                                3

ARTICLE 3  REPRESENTATIONS AND WARRANTIES                   5

     3.1   Status of Securities                             5
     3.2   No Material Misstatements                        5
     3.3   Ownership and Liens                              5

ARTICLE 4  COVENANTS AND AGREEMENTS                         5

     4.1   Payment of Assessments and Charges               5
     4.2   Delivery of Collateral                           6
     4.3   Further Assurances                               6
     4.4   Prohibited Liens and Filings                     6

ARTICLE 5  RIGHTS AND REMEDIES                              6

     5.1   Remedies Upon Default                            6
     5.2   Voting Rights, Dividends, Etc. Prior to Default  7
     5.3   Voting Rights, Dividends, Etc. After Default     8
     5.4   Proceeds                                         9
     5.5   Lender Duties                                    9
     5.6   The Lender's Actions                             9

ARTICLE 6  MISCELLANEOUS                                   10

     6.1   Transfer of Obligations and Collateral          10
     6.2   Cumulative Security                             10
     6.3   Continuing Agreement                            10
     6.4   Cumulative Rights                               11
     6.5   Exercise of Rights                              11
     6.6   Remedy and Waiver                               11
     6.7   Non-Judicial Remedies                           11
     6.8   Preservation of Liability                       11
     6.9   Notices and Other Communications                11
     6.10  Parties in Interest                             12
     6.11  Amendment and Waiver                            12
     6.12  Invalidity                                      12
     6.13  GOVERNING LAW                                   12
     6.14  JURISDICTION AND VENUE                          13
     6.15  WAIVER OF RIGHTS TO JURY TRIAL                  13
     6.16  ENTIRE AGREEMENT                                13


     SECURITY AGREEMENT

     (Stock Pledge)


           THIS  SECURITY AGREEMENT (this "Security Agreement") dated as of  the
1st  day  of  February,  1995,  is entered into between  HOWELL  CORPORATION,  a
Delaware corporation (the "Pledgor"), and BANK ONE, TEXAS, NATIONAL ASSOCIATION,
a national banking association (the "Lender").


     W I T N E S S E T H :

           WHEREAS, pursuant to the terms and conditions of the Credit Agreement
dated  December  23, 1994, by and between Howell Crude Oil Company,  a  Delaware
corporation  (the  "Corporation"), and the Lender  (as  such  agreement  may  be
amended,  restated, or supplemented from time to time, the "Credit  Agreement"),
the  Lender  has  agreed  to issue letters of credit  for  the  account  of  the
Corporation;

           WHEREAS,  the  Pledgor  is  the owner of the  shares  of  issued  and
outstanding  common  stock  described in Schedule I  hereof  (the  "Securities")
issued by the Corporation;

           WHEREAS,  the  Pledgor, as the shareholder of the  Corporation,  will
derive substantial direct and indirect benefits from the extension of credit  by
the Lender to the Corporation; and

           WHEREAS,  pursuant  to the terms of the Credit Agreement  and  as  an
inducement  to  the  Lender to issue letters of credit for the  account  of  the
Corporation pursuant to the Credit Agreement, the Pledgor has agreed to  execute
this Security Agreement in favor of the Lender;

           NOW,  THEREFORE, in consideration of the premises and for other  good
and  valuable  consideration, the receipt and sufficiency of  which  are  hereby
acknowledged, the Pledgor hereby agrees with the Lender as follows:


     ARTICLE 1

     DEFINITIONS AND INTERPRETATION

           1.1   Terms  Defined Above.  As used in this Security Agreement,  the
terms "Corporation," "Credit Agreement," "Lender," "Pledgor," "Securities,"  and
"Security Agreement" will have the meanings indicated above.

           1.2   Terms Defined in Credit Agreement.  Each capitalized term  used
but  not  defined  herein shall have the meaning assigned to such  term  in  the
Credit Agreement.

           1.3   Additional Defined Terms.  As used in this Security  Agreement,
the following terms will have the meanings indicated:

           (a)   "Collateral"  will  mean the Securities  and  the  certificates
representing the Securities; all dividends, cash, instruments and other property
from time to time received, receivable or otherwise distributed in respect of or
in exchange for any or all of the Securities, including, without limitation, all
additional shares of stock of the Corporation from time to time acquired by  the
Pledgor  by  way of stock dividend or stock split; the certificates representing
such  additional shares; all dividends, cash, instruments or other property from
time  to time received, receivable or otherwise distributed in respect of or  in
exchange  for any or all of such additional shares; and all proceeds of  any  of
the foregoing in this definition.

          (b)  "Event of Default" shall mean any Event of Default, as defined in
the  Credit  Agreement, or the failure of the Pledgor to comply with Regulations
G,  T,  U  or  X  of  the Board of Governors of the Federal Reserve  System,  as
amended.

           1.4   Undefined  Financial  Accounting  Terms.   Undefined  financial
accounting  terms  used  in  this Security Agreement  shall  have  the  meanings
assigned to such terms according to GAAP.

          1.5  Terms Defined in Texas Business and Commerce Code.  Any term used
herein  that is defined in the Texas Business and Commerce Code shall  have  the
meaning assigned to such term therein, unless the context otherwise requires  or
such term is otherwise defined herein.

            1.6    References.  The  words  "hereby,"  "herein,"  "hereinabove,"
"hereinafter," "hereinbelow," "hereof," "hereunder," and words of similar import
when used in this Security Agreement shall refer to this Security Agreement as a
whole  and not to any particular Article, Section, or provision of this Security
Agreement.  References in this Security Agreement to Article or Section  numbers
are  to  such  Articles or Sections of this Security Agreement unless  otherwise
specified.

           1.7  Articles and Sections.  This Security Agreement, for convenience
only, has been divided into Articles and Sections; and it is understood that the
rights and other legal relations of the parties hereto shall be determined  from
this instrument as an entirety and without regard to the aforesaid division into
Articles  and Sections and without regard to headings prefixed to such  Articles
or Sections.

           1.8   Number  and  Gender.  Whenever the context requires,  reference
herein made to the single number shall be understood to include the plural;  and
likewise,  the  plural  shall  be understood to  include  the  singular.   Words
denoting  sex shall be construed to include the masculine, feminine and  neuter,
when  such  construction  is  appropriate; and specific  enumeration  shall  not
exclude the general but shall be construed as cumulative.  Definitions of  terms
defined  in the singular or plural shall be equally applicable to the plural  or
singular, as the case may be, unless otherwise indicated.


     ARTICLE 2

     SECURITY INTEREST

          2.1  Grant of Security Interest in Collateral.  The Pledgor, for value
received, the receipt and sufficiency of which are hereby acknowledged,  and  to
induce the Lender to issue Letters of Credit for the benefit of the Corporation,
hereby pledges to the Lender and hereby grants to the Lender a first lien on and
a security interest in the Collateral to secure the Obligations.

            2.2   Delivery  of  Securities.   All  certificates  or  instruments
representing or evidencing the Securities shall be delivered to and held by  the
Lender  for  the  sole purpose of possession of the Collateral  or  any  portion
thereof  pursuant to this Security Agreement, and shall be in suitable form  for
transfer  by  delivery, or shall be accompanied by duly executed instruments  of
transfer or assignment in blank, all in form and substance satisfactory  to  the
Lender.   The Lender shall at all times have actual possession of the Securities
and shall be deemed to have possession of any of the Collateral in transit to it
or set apart for it.

           2.3   Power  of Attorney.  The Pledgor hereby irrevocably constitutes
and  appoints the Lender and any authorized officer or  agent thereof, with full
power  of  substitution,  as  its  true and lawful  attorney-in-fact  with  full
irrevocable power and authority in the place and stead of the Pledgor and in the
name  of  the  Pledgor  or in its own name, from time to time  in  the  Lender's
discretion,  for  the  purpose  of  carrying out  the  terms  of  this  Security
Agreement,  and  without notice to the Pledgor, to take any and all  appropriate
action  and  to  execute  any and all documents and  instruments  which  may  be
necessary  or  desirable to accomplish the purposes of this Security  Agreement,
including, without limitation, the following:

           (a)   upon the occurrence and during the continuance of any Event  of
Default, to transfer to or register any or all of the Collateral in the name  of
the Lender or any of its nominees;

           (b)   to  exchange  the certificates or instruments  representing  or
evidencing the Collateral for certificates or instruments of smaller  or  larger
denominations;

           (c)   upon the occurrence and during the continuance of any Event  of
Default,  (i)  to receive payment of and receipt for any and all moneys,  claims
and other amounts due and to become due at any time in respect of or arising out
of  any  Collateral,  (ii)  to  commence and prosecute  any  suits,  actions  or
proceedings  at  law  or  in  equity in any court of competent  jurisdiction  to
collect  the  Collateral or any part thereof and to enforce any other  right  in
respect  of  any  Collateral,  (iii) to defend any suit,  action  or  proceeding
brought  against  the Pledgor with respect to any Collateral,  (iv)  to  settle,
compromise  or  adjust any suit, action or proceeding described  above  and,  in
connection therewith, to give such discharges or releases as the Lender may deem
appropriate,  and  (v) to complete any blanks contained in  any  instruments  of
transfer   or   assignment  appended  to  or  delivered  with  the  certificates
representing the Securities; and

           (d)   to  exchange  any  of the Collateral for  other  property  upon
reorganization,  recapitalization or other readjustment of the Corporation,  and
in  connection therewith to deposit any of the Collateral with any committee  or
depository upon such terms as the Lender may determine; and, subsequent  to  any
Event of Default, to exercise, at the option of the Lender, voting rights as  to
any of the Collateral;

all without notice and without liability except to account for property actually
received by the Lender.

           The Pledgor hereby ratifies all that said attorney shall lawfully  do
or cause to be done within the scope of the power of attorney granted hereunder.
This  power  of  attorney  is a power coupled with  an  interest  and  shall  be
irrevocable  so  long as any Obligation remains outstanding  or  any  Commitment
exists.  The powers conferred on the Lender hereunder are solely to protect  its
interests  in the Collateral and shall not impose any duty upon it  to  exercise
any  such  powers.   The Lender shall be accountable only for  amounts  that  it
actually receives as a result of the exercise of such powers and neither it  nor
any  of its officers, directors, employees or agents shall be responsible to the
Pledgor for any act or failure to act, except for gross negligence.


     ARTICLE 3

     REPRESENTATIONS AND WARRANTIES

           To  induce  the Lender to enter into the Credit Agreement  and  issue
Letters of Credit for the account of the Corporation, the Pledgor represents and
warrants  to the Lender (which representations and warranties shall survive  the
delivery of this Security Agreement and the other Loan Documents) that:

           3.1   Status  of  Securities.  All signatures on the  Securities  are
genuine  or  authorized; the transfer of the Securities by the  Pledgor  to  the
Lender is effective; the Pledgor knows of no fact that might impair the validity
of  the  Securities;  and the Securities (a) have been duly authorized,  validly
issued,  drawn,  made,  and/or accepted, (b) are genuine,  validly  outstanding,
fully  paid,  and  nonassessable,  (c) were  not  issued  in  violation  of  the
preemptive  rights of any Person or any agreement by which the  Pledgor  or  any
issuer of such Collateral is bound, and (d) have not been materially altered.

           3.2   No Material Misstatements.  No information, exhibit, or  report
furnished by the Pledgor to the Lender in connection with the negotiation of any
Loan Document contained or contains any material misstatement of fact or omitted
to  state a material fact or any fact necessary to make the statements contained
therein, in light of the circumstances in which they were made, not misleading.

           3.3   Ownership and Liens.  Except for the security interest  of  the
Lender,  the  Pledgor  owns  (and at the time of transfer  or  delivery  of  the
Collateral to the Lender owned or will own) good and indefeasible title  to  the
Collateral  free  and  clear  of any other security  interests,  liens,  adverse
claims, or options; the Pledgor has (and at the time of transfer or delivery  of
the  Collateral to the Lender had or will have) full right, power, and authority
to  convey,  assign, transfer, and deliver the Collateral to the Lender  and  to
grant a security interest in the Collateral to the Lender in the manner provided
herein.


     ARTICLE 4

     COVENANTS AND AGREEMENTS

           Unless  agreed in writing by the Lender to the contrary, the  Pledgor
agrees,  so  long  as  any  Obligation remains  outstanding  or  unpaid  or  any
Commitment exists:

           4.1   Payment of Assessments and Charges.  To pay all taxes, charges,
liens  and  assessments  against the Collateral; and upon  the  failure  of  the
Pledgor  to  do so, the Lender at its option may, but will not be obligated  to,
pay any of them.

          4.2  Delivery of Collateral.  That any and all

           (i)  dividends paid or payable other than in cash and all instruments
and  other property received, receivable or otherwise distributed in respect  of
or in exchange for any Collateral,

           (ii)  dividends and other distributions paid or payable  in  cash  in
respect  of any Collateral in connection with a partial or total liquidation  or
dissolution  or  in connection with a reduction of capital, capital  surplus  or
paid-in surplus, and

           (iii)  cash  paid,  payable or otherwise distributed  in  respect  of
principal of, in redemption of or in exchange for any Collateral,

shall be forthwith delivered to the Lender to hold as Collateral for the benefit
of  the  Lender and shall, if received by the Pledgor, be received in trust  for
the benefit of the Lender, be segregated from the other property or funds of the
Pledgor, and be forthwith delivered to the Lender as Collateral in the same form
as so received (with any necessary endorsement).

           4.3   Further  Assurances.   To promptly  cure  any  defects  in  the
execution and delivery of any of the Loan Documents executed by the Pledgor  and
execute, acknowledge, and deliver such other assurances and instruments and take
such  other  action  as  shall, in the opinion of the Lender,  be  necessary  to
fulfill  the terms of the Loan Documents executed by the Pledgor and to confirm,
perfect,  and preserve the security interest created and intended to be  created
hereby and to vest more completely in and assure to the Lender its rights  under
this Security Agreement.

          4.4  Prohibited Liens and Filings.  That it will not pledge, mortgage,
or  otherwise encumber, create, or suffer a security interest to exist in any of
the Collateral (other than in favor of the Lender) or sell, assign, or otherwise
transfer any of the Collateral to anyone other than the Lender or file or permit
to be filed any financing statement or other security instrument with respect to
the Collateral other than in favor of the Lender.


     ARTICLE 5

     RIGHTS AND REMEDIES

           5.1   Remedies Upon Default.  (a) Upon the occurrence and during  the
continuance  of an Event of Default, the Lender may, at its option, declare  all
Obligations  immediately due and payable, without presentment, demand,  protest,
notice of protest, default or dishonor, notice of intent to accelerate maturity,
notice of acceleration of maturity or other notice of any kind, all of which are
hereby  expressly  waived by the Pledgor, and may exercise  any  and  all  other
remedies provided by law or pursuant to the Loan Documents.

           (b)   If  all  or  any part of the Obligations shall become  due  and
payable,  the  Lender  may  then,  or at any time  thereafter,  apply,  set-off,
collect, sell in one or more sales, or otherwise dispose of, any or all  of  the
Collateral,  in  its  then  condition or following any  commercially  reasonable
preparation or processing, in such order as the Lender may elect.  Any such sale
may  be  made either at public or private sale at the place of business  of  the
Lender, any brokers' board or securities exchange or elsewhere, either for  cash
or  upon  credit  or for future delivery, at such price as the Lender  may  deem
fair.  The Lender may be the purchaser of any or all Collateral so sold and  may
hold the same thereafter in its own right free from any claim of the Pledgor  or
right  of redemption.  No such purchase or holding by the Lender shall be deemed
a  retention  by  the Lender in satisfaction of the Obligations.   All  demands,
notices, and advertisements, and the presentment of property at sale are  hereby
waived.  If, notwithstanding the foregoing provisions, any  applicable provision
of  the  Uniform  Commercial  Code or other law  requires  the  Lender  to  give
reasonable  notice  of any such sale or disposition or other action,  ten  days'
prior written notice shall constitute reasonable notice.  The Lender may require
the Pledgor to assemble the Collateral and make it available to the Lender at  a
place  designated by the Lender that is reasonably convenient to the Lender  and
the  Pledgor.   Any  sale hereunder may be conducted by  an  auctioneer  or  any
officer or agent of the Lender.

          (c)  In connection with the sale of Collateral which is stock or other
investment  securities,  the  Lender must limit prospective  purchasers  to  the
extent  deemed necessary or advisable by the Lender to render such  sale  exempt
from  the  registration requirements of the Securities Act of 1933,  as  amended
(the  "Act"), and any applicable state securities laws.  No sale so made in good
faith  by the Lender shall be deemed not to be "commercially reasonable" because
so  made;  provided, however, that nothing in this Security Agreement  shall  be
deemed  to  impose  any  obligation whatsoever to file a registration  statement
under the Act or any state securities law with respect to any sale of Collateral
by the Lender.

          5.2  Voting Rights, Dividends, Etc. Prior to Default.

          So long as no Event of Default shall have occurred and be continuing:

           (a)  the Pledgor will be entitled to exercise any and all voting  and
other consensual rights pertaining to the Collateral or any part thereof for any
purpose not inconsistent with the terms of this Security Agreement;

          (b)  subject to the further provisions of this Security Agreement, the
Pledgor  shall be entitled to receive and retain any and all dividends  paid  in
respect of the Collateral; provided, however, that any and all

                (i)   dividends  paid  or payable other than  in  cash  and  all
instruments and other Property received, receivable, or otherwise distributed in
respect of or in exchange for any Collateral,

               (ii) dividends and other distributions paid or payable in cash in
respect  of any Collateral in connection with a partial or total liquidation  or
dissolution  or  in connection with a reduction of capital, capital  surplus  or
paid-in surplus, and

                (iii)  cash paid, payable or otherwise distributed in respect of
principal of, in redemption of or in exchange for any Collateral,

      shall  be forthwith delivered to the Lender to hold as Collateral for  the
benefit  of  the  Lender and shall, if received by the Pledgor, be  received  in
trust  for  the benefit of the Lender, be segregated from the other property  or
funds of the Pledgor, and be forthwith delivered to the Lender as Collateral  in
the same form as so received (with any necessary endorsement); and

          (c)  the Lender shall execute and deliver (or cause to be executed and
delivered) to the Pledgor all such proxies and other instruments as the  Pledgor
may  reasonably request for the purpose of enabling the Pledgor to exercise  the
voting  and  other rights which it is entitled to exercise pursuant  to  Section
5.2(a) above and to receive the dividends which it is authorized to receive  and
retain.

            5.3   Voting  Rights,  Dividends,  Etc.  After  Default.   Upon  the
occurrence and during the continuance of an Event of Default:

           (a)   at  the  option of the Lender with notice to the  Pledgor,  all
rights  of the Pledgor to exercise the voting and other consensual rights  which
it  would otherwise be entitled to exercise pursuant to Section 5.2(a) above and
to  receive  the  dividends and interest payments which it  would  otherwise  be
authorized  to receive and retain pursuant to Section 5.2(b) above  shall  cease
and  shall thereupon become vested in the Lender, who shall thereupon  have  the
sole  right  to exercise such voting and other consensual rights and to  receive
and hold as Collateral such dividends; and

           (b)  all dividends which are received by the Pledgor contrary to  the
provisions of Section 5.3(a) above shall be received in trust for the benefit of
the  Lender,  shall be segregated from other funds of the Pledgor and  shall  be
forthwith paid over to the Lender as Collateral in the same form as so  received
(with any necessary endorsement).

           5.4   Proceeds.  Prior to all or any part of the Obligations becoming
due  and  payable as specified in Section 5.1, all cash sums or  other  property
received by the Lender on account of the Collateral shall be held as Collateral.
After  all  or  any  part of the Obligations shall become  due  and  payable  as
specified in Section 5.1, the proceeds of any sale or other disposition  of  the
Collateral  and all sums received or collected by the Lender from or on  account
of  the  Collateral shall be applied by the Lender in the manner  set  forth  in
9.504 of the UCC.

           5.5  Lender Duties.  The Lender shall be under no duty whatsoever  to
make  or give any presentment, demand for performance, notice of nonperformance,
protest,  notice of protest, notice of dishonor, or other notice  or  demand  in
connection  with  any  Collateral  or the Obligations,  or  to  take  any  steps
necessary to preserve any rights against prior parties.  The Lender shall not be
liable  for failure to collect or realize upon any or all of the Obligations  or
Collateral, or for any delay in so doing, nor shall the Lender be under any duty
to  take  any  action  whatsoever with regard thereto.   The  Lender  shall  use
reasonable care in the custody and preservation of any Collateral in its  posses
sion.   The  Lender shall have no duty to comply with any recording, filing,  or
other  legal  requirements  necessary to establish  or  maintain  the  validity,
priority,  or  enforceability of, or the Lender's rights in or to,  any  of  the
Collateral.

           5.6   The Lender's Actions.  The Pledgor waives any right to  require
the  Lender to proceed against any person, exhaust any collateral or pursue  any
other  remedy in the Lender's power; waives any and all notice of acceptance  of
this Security Agreement or of creation, modification, renewal, or extension  for
any  period of any Obligations; and waives any defense arising by reason of  any
disability or other defense of the Corporation or any other guarantor or  Person
primarily  or  secondarily liable with respect to all  or  any  portion  of  the
Obligations ("Other Liable Party"), or by reason of the cessation from any cause
whatsoever  of the liability of the Corporation or any Other Liable Party.   All
dealings   between  the  Corporation  or  the  Pledgor  and  the  Lender   shall
conclusively be presumed to have been had or consummated in reliance  upon  this
Security Agreement.  Until all Obligations shall have been paid and/or performed
in  full and the Commitment shall have terminated, the Pledgor (i) shall have no
right  to  subrogation, (ii) waives any right to enforce  any  remedy  that  the
Lender now has or may hereafter have against the Corporation or any Other Liable
Party,  and  (iii)  except  as otherwise expressly  provided  in  this  Security
Agreement,  waives any benefit of and right to participate in any collateral  or
security whatsoever now or hereafter held by the Lender.


     ARTICLE 6

     MISCELLANEOUS

           6.1  Transfer of Obligations and Collateral.  Subject to the terms of
the Credit Agreement, the Pledgor hereby agrees that the Lender may transfer any
or  all of the Obligations.  Upon any such transfer, the Lender may transfer any
or  all  of  the  Collateral and shall be fully discharged thereafter  from  all
liability  with  respect to the Collateral so transferred,  and  the  transferee
shall  be  vested with all rights, powers, and remedies of the Lender  hereunder
with  respect to Collateral so transferred.  With respect to any Collateral  not
so  transferred, the Lender shall retain all rights, powers, and remedies hereby
given.   The Lender may at any time deliver any or all of the Collateral to  the
Pledgor,  whose receipt shall be a complete and full acquittance for the  Collat
eral  so  delivered,  and  the Lender shall thereafter be  discharged  from  any
liability therefor.

          6.2  Cumulative Security.  The execution and delivery of this Security
Agreement in no manner shall impair or affect any other security (by endorsement
or  otherwise) for the payment of the Obligations.  No security taken  hereafter
as security for payment of all or any portion of the Obligations shall impair in
any  manner  or  affect this Security Agreement.  All such  present  and  future
additional security is to be considered as cumulative security.

           6.3   Continuing Agreement.  This is a continuing agreement  and  the
conveyance  hereunder shall remain in full force and effect and all the  rights,
powers,  and remedies of the Lender hereunder shall continue to exist until  the
Obligations  shall  be  paid in full as the same become  due  and  payable,  the
Commitment  has  terminated, and the Lender, upon request of  the  Pledgor,  has
executed  a  written termination statement, reassigned to the  Pledgor,  without
recourse,  the Collateral and all rights and liens conveyed hereby and  returned
possession of the Collateral to the Pledgor.  Furthermore, it is contemplated by
the  parties hereto that there may be times when no Obligations shall be  owing.
Notwithstanding such occurrences, this Security Agreement shall remain valid and
shall be in full force and effect as to subsequent Obligations provided that the
Lender  has not executed a written termination statement and returned possession
of  the  Collateral  to the Pledgor.  Otherwise, this Security  Agreement  shall
continue irrespective of the fact that the liability of the Corporation  or  any
Other  Liable Party may have ceased and notwithstanding the death or  incapacity
of  the  Pledgor  or  any Other Liable Party or any other  event  or  proceeding
affecting the Corporation, the Pledgor, and/or any Other Liable Party.

           6.4   Cumulative  Rights.  The rights, powers, and  remedies  of  the
Lender hereunder shall be in addition to all rights, powers, and remedies  given
by  statute or rule of law and are cumulative.  The exercise of any one or  more
of the rights, powers, and remedies provided herein shall not be construed as  a
waiver  of  any  other rights, powers, and remedies of the Lender.   The  Lender
shall  have the rights, powers, and remedies of a secured party under the  Texas
Business and Commerce Code, as amended.

           6.5   Exercise  of  Rights.  Time shall be of  the  essence  for  the
performance of any act under this Security Agreement by the Pledgor, but neither
the  Lender's  acceptance of partial or delinquent payments nor any forbearance,
failure,  or delay by the Lender in exercising any right, power or remedy  shall
be  deemed  a waiver of any obligation of the Pledgor, the Corporation,  or  any
Other  Liable Party or of any right, power, or remedy of the Lender or  preclude
any  other or further exercise thereof; and no single or partial exercise of any
right, power, or remedy shall preclude any other or further exercise thereof  or
the exercise of any other right, power, or remedy.

           6.6   Remedy and Waiver.  The Lender may remedy or waive any  default
without waiving the default remedied or waiving any prior or subsequent default.

           6.7   Non-Judicial  Remedies.   The Lender  may  enforce  its  rights
hereunder  without  prior  judicial process or judicial  hearing.   The  Pledgor
expressly waives, renounces, and knowingly relinquishes any and all legal rights
which  might  otherwise  require the Lender to enforce its  rights  by  judicial
process.  In so providing for non-judicial remedies, the Pledgor recognizes  and
concedes  that  such remedies are consistent with the usage of  the  trade,  are
responsive  to  commercial  necessity and are the result  of  bargain  at  arm's
length.   Nothing herein is intended to prevent the Lender or the  Pledgor  from
resorting to judicial process at such party's option.

           6.8  Preservation of Liability.  Neither this Security Agreement  nor
the  exercise by the Lender of (or the failure to so exercise) any right, power,
or remedy conferred herein or by law shall be construed as relieving the Pledgor
or  any  Other  Liable Party from full liability thereon and for any  deficiency
thereon.

           6.9   Notices and Other Communications.  Except as to verbal  notices
expressly authorized herein, which verbal notices shall be confirmed in writing,
all  notices,  requests,  and  communications  hereunder  shall  be  in  writing
(including by telecopy).  Unless otherwise expressly provided herein,  any  such
notice,  request, demand, or other communication shall be deemed  to  have  been
duly  given or made when delivered by hand, or, in the case of delivery by mail,
when  deposited  in the mail, certified mail, return receipt requested,  postage
prepaid,  or,  in  the  case  of  telecopy  notice,  when  receipt  thereof   is
acknowledged orally or by written confirmation report, addressed as follows:

          (a)  if to the Lender, to:

               Bank One, Texas, National Association
               910 Travis
               Houston, Texas 77002
               Attention:  Energy Group
               (or for notice by mail, to:
               P. O. Box 2629
               Houston, Texas 77252-2629
               Attention: Energy Group)
               Telecopy:  (713) 751-3544

          (b)  if to the Pledgor, to:

               Howell Corporation
               1111 Fannin, Suite 1500
               Houston, Texas 77002
               Attention:  Allyn Skelton
               Telecopy:  (713) 658-4007

           Any  party  may, by proper written notice hereunder  to  the  others,
change the individuals or addresses to which such notices to it shall thereafter
be sent.

           6.10   Parties  in  Interest.  All covenants  and  agreements  herein
contained by or on behalf of the Pledgor or the Lender shall be binding upon and
inure to the benefit of the Pledgor or the Lender, as the case may be, and their
respective legal representatives, successors, and assigns.

          6.11 Amendment and Waiver.  This Security Agreement may not be amended
nor  may  any of its terms be waived except in writing duly signed by the  party
against whom enforcement of the amendment or waiver is sought.

           6.12  Invalidity.   If  any provision of this Security  Agreement  is
rendered  or  declared  illegal,  invalid, or unenforceable  by  reason  of  any
existing or subsequently enacted legislation or by a judicial decision that  has
become  final,  the  Pledgor and the Lender shall promptly  meet  and  negotiate
substitute provisions for those rendered illegal, invalid, or unenforceable, but
all of the remaining provisions shall remain in full force and effect.

           6.13  GOVERNING LAW.  THIS SECURITY AGREEMENT SHALL BE DEEMED TO BE A
CONTRACT  MADE UNDER AND SHALL BE CONSTRUED IN ACCORDANCE WITH AND  GOVERNED  BY
THE  LAWS  OF  THE  STATE OF TEXAS WITHOUT GIVING EFFECT TO  PRINCIPLES  THEREOF
RELATING  TO  CONFLICTS  OF LAW, PROVIDED, HOWEVER, THAT  VERNON'S  TEXAS  CIVIL
STATUTES,  ARTICLE  5069, CHAPTER 15 (WHICH REGULATES CERTAIN  REVOLVING  CREDIT
LOAN ACCOUNTS AND REVOLVING TRI-PARTY ACCOUNTS) SHALL NOT APPLY.

          6.14  JURISDICTION AND VENUE.  ALL ACTIONS OR PROCEEDINGS WITH RESPECT
TO,  ARISING DIRECTLY OR INDIRECTLY IN CONNECTION WITH, OUT OF, RELATED  TO,  OR
FROM THIS SECURITY AGREEMENT OR ANY OTHER LOAN DOCUMENT TO WHICH THE PLEDGOR  IS
A  PARTY MAY BE LITIGATED, AT THE SOLE DISCRETION AND ELECTION OF THE LENDER, IN
COURTS  HAVING  SITUS  IN  HOUSTON, HARRIS COUNTY, TEXAS.   THE  PLEDGOR  HEREBY
SUBMITS  TO  THE JURISDICTION OF ANY LOCAL, STATE, OR FEDERAL COURT  LOCATED  IN
HOUSTON,  HARRIS  COUNTY, TEXAS, AND HEREBY WAIVES ANY RIGHTS  IT  MAY  HAVE  TO
TRANSFER  OR CHANGE THE JURISDICTION OR VENUE OF ANY LITIGATION BROUGHT  AGAINST
IT BY THE LENDER IN ACCORDANCE WITH THIS SECTION.

           6.15   WAIVER  OF RIGHTS TO JURY TRIAL.  THE PLEDGOR AND  THE  LENDER
HEREBY  KNOWINGLY, VOLUNTARILY, INTENTIONALLY, IRREVOCABLY, AND  UNCONDITIONALLY
WAIVE ALL RIGHTS TO TRIAL BY JURY IN ANY ACTION, SUIT, PROCEEDING, COUNTERCLAIM,
OR  OTHER  LITIGATION  THAT RELATES TO OR ARISES OUT OF  ANY  OF  THIS  SECURITY
AGREEMENT  OR ANY OTHER LOAN DOCUMENT OR THE ACTS OR OMISSIONS OF THE LENDER  IN
THE ENFORCEMENT OF ANY OF THE TERMS OR PROVISIONS OF THIS SECURITY AGREEMENT  OR
ANY  OTHER  LOAN DOCUMENT OR OTHERWISE WITH RESPECT THERETO.  THE PROVISIONS  OF
THIS  SECTION ARE A MATERIAL INDUCEMENT FOR THE LENDER ENTERING INTO THE  CREDIT
AGREEMENT.

           6.16   ENTIRE  AGREEMENT.   THIS SECURITY AGREEMENT  CONSTITUTES  THE
ENTIRE  AGREEMENT BETWEEN THE PARTIES HERETO WITH RESPECT TO THE SUBJECT  HEREOF
AND  SHALL SUPERSEDE ANY PRIOR AGREEMENTS, WHETHER WRITTEN OR ORAL, BETWEEN  THE
PARTIES  HERETO  RELATING TO THE SUBJECT HEREOF.  FURTHERMORE, IN  THIS  REGARD,
THIS  SECURITY  AGREEMENT  AND  THE  OTHER  WRITTEN  LOAN  DOCUMENTS  REPRESENT,
COLLECTIVELY,  THE  FINAL AGREEMENT AMONG THE PARTIES THERETO  AND  MAY  NOT  BE
CONTRADICTED   BY  EVIDENCE  OF  PRIOR,  CONTEMPORANEOUS,  OR  SUBSEQUENT   ORAL
AGREEMENTS  OF SUCH PARTIES.  THERE ARE NO UNWRITTEN ORAL AGREEMENTS AMONG  SUCH
PARTIES.

          IN WITNESS WHEREOF, this Security Agreement is executed as of the date
first above written.

                              DEBTOR

                              HOWELL CORPORATION


                              By: /s/ Paul W. Funkhouser
                              Printed Name:   Paul W. Funkhouser
                              Title:   President



                              BANK ONE, TEXAS, NATIONAL
                              ASSOCIATION


                              By:  /s/  Stephen M. Smith
                                  Stephen M. Smith
                                  Vice President


     SCHEDULE I


                                  Stock                     Number
    Stock          Class of    Certificate      Par           of
    Issuer           Stock          No.        Value        Shares

  Howell Crude      Common        No. 1        1.00         1,000
   Oil Company