DEPOSIT AGREEMENT
                                -----------------
     This  Deposit  Agreement  (this "Agreement"), is entered into on this third
                                      ---------
day  of  August,  2000,  between  the  Commonwealth of Australia (the "Lender"),
                                                                       ------
Syntroleum  Australia  Credit  Corporation  (the "Borrower") and Westpac Banking
                                                  --------
Corporation  ABN  33  007  457  141  (the  "Bank").
                                            ----
WHEREAS,  the  Lender  and  the  Borrower  have  entered  into a certain A$ Loan
Agreement  dated  August  3,  2000  (the  "Loan  Agreement").
                                           ---------------
WHEREAS,  under  the terms of the Loan Agreement, it is proposed that the amount
of  the  facility  to  be  provided under it will be made available in tranches.
WHEREAS,  under  the  terms  of the Loan Agreement, if certain conditions to the
drawdown  of  a  tranche are not satisfied during the period that the tranche is
available  for  drawdown,  the amount of the tranche is to be deposited with the
Bank  into  a  segregated  interest-bearing  account.
NOW,  THEREFORE, for and in consideration of the mutual benefits and obligations
of  the  parties  herein  stated, and other good and valuable consideration, the
receipt  and  sufficiency  of  which are hereby acknowledged by the parties, the
Lender,  the  Borrower  and  the  Bank  hereby  agree  as  follows:
     Account.  The Bank has established a segregated interest-bearing account in
     -------
Australia  in  the  name  of the Lender, account number BSB036000 Account Number
399052  (the "Account").  The Bank acknowledges that the Lender may from time to
time  remit  funds  to the Bank for deposit into the Account; and, in such case,
the  Bank  shall  deposit such funds into the Account and maintain such funds in
the  Account,  or  disburse such funds from the Account, solely on the terms and
conditions  of  this  Agreement.
Release and Delivery of Funds.  The Bank shall release and transfer any funds on
deposit  in,  or  credited  to,  the  Account  as  follows:
     Promptly  upon  the  Bank's receipt of a written notice from the Lender and
the  Borrower  substantially in the form of the attached Exhibit A, that appears
on  its  face  to  be  genuine,  the  Bank  will comply with the instructions to
transfer  the  amount  specified in such notice to the order of the Borrower (to
the  account  specified  in  such  notice).
Promptly  upon  the  Bank's  receipt  of  a  written  notice  from  the  Lender
substantially in the form of the attached Exhibit B or substantially in the form
of the attached Exhibit C, that appears on its face to be genuine, the Bank will
comply  with the instructions to transfer the amount specified in such notice to
the  order  of  the  Lender  (to  the  account  specified  in  such  notice).
The Bank agrees not to permit any funds on deposit or credited to the Account to
be  transferred to any person or entity other than (i) as expressly set forth in
clauses  (a) and (b) of this Section 2 or (ii) upon express written instructions
jointly signed by the Lender and the Borrower and containing a representation by
each  of  the  Lender  and  the  Borrower  that  the  person signing the same is
authorized  to do so in accordance with the terms of this Agreement.  The Lender
and  the Borrower hereby agree that in the event that the Borrower is liquidated
as a result of an involuntary proceeding brought against it under any applicable
bankruptcy, insolvency, reorganization or other similar law, the Lender shall be
entitled  to  all  amounts  then  on  deposit  in  the  Account.
The  Lender  agrees  not  to  provide to the Bank (i) any notice contemplated by
Exhibit B prior to March 1, 2002 and (ii) any notice to the Bank contemplated by
Exhibit  C  prior  5:00  pm  August  31,  2004.  In  the  event  that  the  Bank
nevertheless receives (i) any notice contemplated by Exhibit B prior to March 1,
2002,  or  (ii) any notice contemplated by Exhibit C prior to September 1, 2004,
or (iii) the Bank shall not withdraw or transfer funds or take any action on the
basis  of  any  such  notice.
     Interest.  Credit  balances  in the Account shall bear interest, which will
     --------
be  calculated  daily  and paid monthly to the Account.  Interest will be set at
the  weekly  average  30-day  Bank  Bill  Offer Rate less 75 basis points (0.75%
p.a.),  resulting  in  a current rate of approximately 5.36% p.a. (as at 13 July
2000).  The  30-Day Bank Bill Offer Rate is published each day in the Australian
Financial  Review  newspaper and can be monitored via Reuters BBSY screen.  This
rate is published daily and the average weekly rate can be calculated internally
from  the  published  rate.  Interest  earned on funds that are on deposit in or
credited  to  the  Account shall, in all events be deemed earned by the Borrower
and  shall  be  added  to  the  funds  on  deposit in the Account or paid to the
Borrower  upon  request  by the Borrower; provided, however, that if the Bank at
any  time receives a written notice from the Lender substantially in the form of
the  attached  Exhibit  D  that  appears  on  its face to be genuine (the "Major
Default  Notice"), then the Borrower shall not be entitled to receive any amount
of  interest accrued from the date specified in the Major Default Notice and the
Bank  shall  not  pay such amount of interest to the Borrower until such time as
the  Bank receives from the Lender a written notice substantially in the form of
the  attached  Exhibit  E  that  appears  on  its  face  to  be  genuine.
Extent  of  Bank's Responsibilities.  The Bank's liabilities and obligations are
limited  to  those specifically set forth in this Agreement.  The Bank shall not
be  liable  for  any act or omission by it in good faith in connection with this
Agreement;  provided,  however, that the Bank shall be liable for any negligence
or  willful  misconduct  on  its  part.
No  Set-off.The  Bank agrees that it will not obtain (by agreement, operation of
law  or  otherwise)  a  lien on or other charge over the Account or any funds on
deposit  in  or credited to the Account; and that such funds will not be subject
to  deduction, set-off, banker's lien, or any other right in favor of any person
or  entity other than the Lender or the Borrower; provided that the Bank may set
off  amounts  due  to it in respect of fees and expenses customarily charged for
its performance of the services described in this Agreement only against accrued
interest.
Expenses  of Bank.  All taxes (other than taxes on its overall net income) costs
and  expenses  incurred by the Bank in carrying out the Bank's obligations under
this Agreement or in opening, operating, or closing the Account shall be paid or
reimbursed  by  the  Borrower as incurred and the Bank may debit those costs and
expenses  to  the  Account  (but  only  against  accrued interest) when they are
incurred.
Indemnification  of  Bank.  The  Borrower hereby agrees to indemnify, defend and
hold  the Bank harmless for all losses, costs and expenses (including reasonable
attorneys'  fees)  suffered or incurred by the Bank and arising out of documents
entered into by the Bank, or matters, things and activities (acts and omissions)
of  the  Bank relating to or under this Agreement, provided that such activities
were  performed  by the Bank in good faith and without any negligence or willful
misconduct  on  the  part  of  the  Bank.  This indemnification obligation shall
survive  the  termination  of  this  Agreement.
Notices.  All  notices,  requests,  claims,  demands  or  other  communications
hereunder must be in writing and must be given by delivery in person, by prepaid
post  (airmail,  if  appropriate)  or  by facsimile to the respective parties as
follows:
     If  to  the  Lender,  to:
     Commonwealth  of  Australia
     represented  by  Department  of  Industry  Science
     and  Resources  (Invest  Australia)
     Level  6,  20  Allara  Street
     Canberra  ACT  2601
     Australia
     Facsimile:  (61  2)  6213  7843
     Telephone:  (61  2)  6213  7560
     Attention:  General  Manager,  Invest  Australia

     If  to  the  Borrower,  to:
     Syntroleum  Australia  Credit  Corporation
     1350  S.  Boulder,  Suite  1100
     Tulsa,  Oklahoma  74119-3295
     United  States  of  America
     Facsimile:  (918)  592-7979
     Telephone:  (918)  592-7900
     Attention:  Carla  Covey

     If  to  the  Bank,  to:
     Westpac  Banking  Corporation
     Level  14,  109  St  George's  Terrace,
     Perth,  Western  Australia  6000
     Facsimile:  (61  8)  9426  2866
     Attention:  Mr.  Tony  Lofthouse

Or  such  other address and/or facsimile as is furnished in writing by any party
to  the  others in accordance herewith, except that notices of change of address
are  only  effective  upon  receipt.  Communications hereunder will be deemed to
have  been  received:
     (i)     immediately  upon  delivery  in  person;
(ii)     if sent by post, they are taken to be received three days after posting
(or  seven  days  after  posting  if sent to or from a place outside Australia).
(iii)     if sent by fax, they are taken to be received at the time shown in the
transmission  report  as  the  time  that  the  whole  fax  was  sent.
     Despite clauses 8(ii) and 8(iii) if notices are received after 5:00 p.m. in
the  place of receipt or on a non-business day, they are taken to be received at
9:00 a.m. in the place of receipt on the next business day.  For the purposes of
this  clause  8,  "business day" means a day on which banks are open for general
banking  business  in the place where the notice is sent. All notices, requests,
claims, demands or other communications hereunder furnished by the Borrower must
be  executed  by  one of the authorized signatories with respect to the Account.
The  Borrower  may,  at  any  time,  designate  new  or  replacement  authorized
signatories  with  respect  to  the  Account, by providing written notice to the
Bank.  All  notices, requests, claims, demands or other communications hereunder
furnished  by  the  Lender must be executed by one of the authorized signatories
agreed  upon by the Lender and the Bank.  The Lender may, at any time, designate
new  or  replacement  authorized  signatories  with  respect  to the Account, by
providing  written  notice  to  the  Bank.
     Miscellaneous.
     --------------
(a)     This  Agreement  is  the  final  expression  of  the parties hereto with
respect  to the subject matter described herein and supersedes any and all other
agreements and understandings between the parties hereto, both written and oral;
(b)     This  Agreement  may be amended, modified, supplemented, replaced and/or
assigned  only by a written agreement signed by all of the parties hereto and in
accordance  with  the  terms  and  conditions  hereof;
(c)     This  Agreement  shall not be assigned without the prior written consent
of  the  Bank,  which  consent  will  not  be  unreasonably  withheld;
(d)     This  Agreement  shall be governed by, and construed in accordance with,
the  laws  of  the  Australian  Capital  Territory.  Each  party irrevocably and
unconditionally  submits  to the non-exclusive jurisdiction of the courts of the
Australian  Capital Territory and courts of appeal from them.  Each party waives
any  right  it  has  to  object  to  an  action  being  brought in those courts,
including,  without  limitation, by claiming that the action has been brought in
an  inconvenient  forum  or  that  those  courts  do  not  have  jurisdiction;
(e)     Without  preventing any other mode of service, any document in an action
(including, without limitation, any writ of summons or other originating process
or  any  third  or  other  party  notice)  may  be  served on any party by being
delivered  to or left for that party at its address for service of notices under
clause  9.
(f)     This Agreement may be executed in any number of counterparts and by each
party  as  separate counterparts, each of which when so executed shall be deemed
to  be  an  original and all of which, when taken together, shall constitute one
and  the  same  instrument;
(g)     This  Agreement  shall be binding upon, and inure to the benefit of, the
successors  and  assigns  of  the  parties  hereto;
(h)     If,  at any time, any provision hereof is or becomes illegal, invalid or
unenforceable  in  any  respect  under  the law of any jurisdiction, neither the
legality,  validity or enforceability of the remaining provisions hereof nor the
legality,  validity  or  enforceability  of  such provision under the law of any
other  jurisdiction  shall  in  any  way  be  affected  or  impaired  thereby;
(i)     Each  of the Lender and the Borrower separately represent and warrant to
the Bank that any direction or request given by them to the Bank relating to the
payment  of  any  amount  from  the  Account:
     will  be a correct and accurate direction or request in conformity with the
provisions  of  this  Agreement;  and
will  have  been validly authorized, executed  and able to be relied upon by the
Bank  in  accordance  with  its  terms.
(i)     The  Parties agree and acknowledge that under this Agreement the Bank is
acting only in the capacity of a banker and not in any other capacity whatsoever
     including, without limitation, as trustee or as escrow agent; provided that
                                                                   --------
this clause 5(i) is not intended to reduce, limit or otherwise affect the Bank's
responsibility  for  its  negligence, willful misconduct, bad faith or breach of
its  obligations  in  this  Agreement.
     The  Bank  is  not required to verify or ensure that the Account funds once
paid by the Bank as required by this Agreement are used in any manner and is not
liable  for  any loss or damage suffered by any person in relation to their use.




     IN  WITNESS  WHEREOF, the parties hereto have executed this Agreement as of
the  date  first  written  above.
     COMMONWEALTH  OF  AUSTRALIA


     By:             /s/
              ----------------
     Name:    Mike  Holthuyzen
              ----------------
     Title:    Deputy  CEO
               ---------------

             "LENDER"
     SYNTROLEUM  AUSTRALIA  CREDIT  CORPORATION


     By:               /s/
              --------------------------
     Name:    Randall  M.  Thompson
              --------------------------
     Title:    Chief  Financial  Officer
              --------------------------

             "BORROWER"
     WESTPAC  BANKING  CORPORATION
     as  the  Bank


     By:               /s/
              -----------------------
     Name:    Leith  Lyon  Wintour
              -----------------------
     Title:    Manager  Legal
               ACT  Legal  Unit
               ----------------------
             "BANK"


                                    EXHIBIT A
                              to Deposit Agreement

               NOTICE OF INSTRUCTION TO TRANSFER FUNDS TO BORROWER

                                     [Date]

Westpac  Banking  Corporation
Level  14,  109  St  George's  Terrace,
Perth,
Western  Australia  6000
Facsimile:  (61  8)  9426  2866
Attention:  Mr.  Tony  Lofthouse

Re:     Account  No.  BSB036000  Account  Number  399052  (the  "Account")
        ------------------------------------------------------------------

Ladies  and  Gentlemen:
     We  refer  to  the  Deposit  Agreement,  dated  as  of August __, 2000 (the
"Deposit  Agreement")  between you, Syntroleum Australia Credit Corporation (the
"Borrower")  and  the  Commonwealth  of  Australia  (the  "Lender").
The  Lender  hereby  gives  you  notice that the Borrower is entitled to receive
AUD$_________  of  the  funds in the Account; and, accordingly, you may transfer
all  or  a  portion  of  AUD$_________  upon  the  order  of  the  Borrower.
The Borrower hereby instructs you to transfer [all] [SPECIFY AMOUNT IF LESS THAN
ALL]  of  the funds in the Account, by electronic delivery of funds, to [SPECIFY
BANK  OR  INSTITUTION TO WHICH FUNDS ARE TO BE WIRED], account number [_______].
Each  of  the  undersigned  represents for your benefit that it is authorized to
execute  and  deliver  this  notice  to  you in accordance with the terms of the
Deposit  Agreement.
Very  truly  yours,

Commonwealth  of  Australia     Syntroleum  Australia  Credit  Corporation


By:                   By:
Name:                 Name:
Title:                Title:
- ------------          ------------


                                    EXHIBIT B
                              to Deposit Agreement
                           [Letterhead of the Lender]
                          [Date - AFTER FEB. 28, 2002]

            NOTICE OF INSTRUCTION TO TRANSFER CERTAIN FUNDS TO LENDER

Westpac  Banking  Corporation
Level  14,  109  St  George's  Terrace,
Perth,
Western  Australia  6000
Facsimile:  (61  8)  9426  2866
Attention:  Mr.  Tony  Lofthouse

Re:     Account  No.  BSB036000  Account  Number  399052  (the  "Account")
Ladies  and  Gentlemen:
     We  refer  to  the  Deposit  Agreement,  dated  as  of August __, 2000 (the
"Deposit  Agreement")  between you, Syntroleum Australia Credit Corporation (the
"Borrower")  and  the  Commonwealth  of  Australia  (the  "Lender").
The  Lender  has  previously  remitted for deposit into the Account, among other
amounts,  an  amount  equal  to  AUD$________ (such deposit and such amount, the
"Tranche  C  Facility  Limit").  The  Tranche  C  Facility  Limit  is  no longer
available  to  the  Borrower.  Accordingly,  the Lender hereby requests that you
transfer  the  amount  equal to the Tranche C Facility Limit from the Account to
[SPECIFY  BANK  OR  INSTITUTION  TO WHICH FUNDS ARE TO BE WIRED], account number
[_______].
The undersigned represents for your benefit that it is authorized to execute and
deliver this notice to you in accordance with the terms of the Deposit Agreement
and  further represents for the benefit of the Borrower that it is authorized to
execute  and  deliver  this  notice  in  accordance  with  the terms of the Loan
Agreement  referred  to  in  the  Deposit  Agreement.
     Very  truly  yours,

Commonwealth  of  Australia


By:
Name:
Title:

cc:  Syntroleum  Australia  Credit  Corporation



                                    EXHIBIT C
                              to Deposit Agreement
                           [Letterhead of the Lender]
                          [Date - AFTER AUG. 31, 2004]
              NOTICE OF INSTRUCTION TO TRANSFER ALL FUNDS TO LENDER

Westpac  Banking  Corporation
Level  14,  109  St  George's  Terrace,
Perth,
Western  Australia  6000
Facsimile:  (61  8)  9426  2866
Attention:  Mr.  Tony  Lofthouse

Re:     Account  No.  BSB036000  Account  Number  399052  (the  "Account")
Ladies  and  Gentlemen:
     We  refer  to  the  Deposit  Agreement,  dated  as  of August __, 2000 (the
"Deposit  Agreement")  between you, Syntroleum Australia Credit Corporation (the
"Borrower")  and  the  Commonwealth  of  Australia  (the  "Lender").
The  Lender  has  previously  remitted for deposit into the Account an aggregate
amount  equal  to  AUD$________.  The  amounts  in  the  Account  are  no longer
available  to  the  Borrower.  Accordingly,  the Lender hereby requests that you
transfer all of the funds on deposit in the Account (after deducting all accrued
and  unpaid  interest  earned  thereon) to [SPECIFY BANK OR INSTITUTION TO WHICH
FUNDS  ARE  TO  BE  WIRED],  account  number  [_______].  The accrued and unpaid
interest  referred to in the preceding sentence is to be paid to the Borrower or
upon  its  order.  [IF A NOTICE IN THE FORM OF EXHIBIT D HAD BEEN GIVEN UPON THE
OCCURRENCE  OF  A  "MAJOR  EVENT OF DEFAULT" AND THE SAME IS STILL IN EXISTENCE,
THEN  REPLACE  THE LAST SENTENCE WITH: "The accrued and unpaid interest referred
to  in  the  preceding sentence is to be paid to the Lender at [INSTRUCTIONS FOR
PAYMENT]].
The undersigned represents for your benefit that it is authorized to execute and
deliver this notice to you in accordance with the terms of the Deposit Agreement
and  further represents for the benefit of the Borrower that it is authorized to
execute  and  deliver  this  notice  in  accordance  with  the terms of the Loan
Agreement  referred  to  in  the  Deposit  Agreement.
     Very  truly  yours,

Commonwealth  of  Australia


By:
Name:
Title:
cc:  Syntroleum  Australia  Credit  Corporation


                                    EXHIBIT D
                              to Deposit Agreement
                           [Letterhead of the Lender]

                                     [Date]
            NOTICE OF MAJOR DEFAULT -- INSTRUCTION TO FREEZE INTEREST


Westpac  Banking  Corporation
Level  14,  109  St  George's  Terrace,
Perth,
Western  Australia  6000
Facsimile:  (61  8)  9426  2866
Attention:  Mr.  Tony  Lofthouse

Re:     Account  No.  BSB036000  Account  Number  399052  (the  "Account")
Ladies  and  Gentlemen:
     We  refer  to  the  Deposit  Agreement,  dated  as  of August __, 2000 (the
"Deposit  Agreement")  between you, Syntroleum Australia Credit Corporation (the
"Borrower")  and  the  Commonwealth  of  Australia  (the  "Lender").
The  Lender hereby notifies you that a "Major Event of Default" has occurred and
is  continuing  under  the Loan Agreement (as defined in the Deposit Agreement).
Accordingly,  the  Lender  hereby  instructs  you not to pay to the Borrower any
amount  of  interest  earned  on  the  Account  from  and  after [INSERT DATE OF
DEFAULT],  which is the date of the occurrence of such "Major Event of Default",
and  until  such  date  as we may specify to you in writing in substantially the
form of Exhibit E to the Deposit Agreement.  All such amounts of interest are to
be  added  to  the  Account.
The undersigned represents for your benefit that it is authorized to execute and
deliver this notice to you in accordance with the terms of the Deposit Agreement
and  further represents for the benefit of the Borrower that it is authorized to
execute  and  deliver  this  notice  in  accordance  with  the terms of the Loan
Agreement  referred  to  in  the  Deposit  Agreement.
     Very  truly  yours,

Commonwealth  of  Australia


By:
Name:
Title:
cc:  Syntroleum  Australia  Credit  Corporation



                                    EXHIBIT E
                              to Deposit Agreement
                           [Letterhead of the Lender]

                                     [Date]
       NOTICE OF END OF MAJOR DEFAULT -- INSTRUCTION TO UNFREEZE INTEREST


Westpac  Banking  Corporation
Level  14,  109  St  George's  Terrace,
Perth,
Western  Australia  6000
Facsimile:  (61  8)  9426  2866
Attention:  Mr.  Tony  Lofthouse

Re:     Account  No.  BSB036000  Account  Number  399052  (the  "Account")
Ladies  and  Gentlemen:
     We  refer  to  the  Deposit  Agreement,  dated  as  of August __, 2000 (the
"Deposit  Agreement")  between you, Syntroleum Australia Credit Corporation (the
"Borrower")  and  the  Commonwealth  of  Australia  (the  "Lender").
The Lender has previously delivered to you a written notice in substantially the
form of Exhibit E to the Deposit Agreement, notifying you that a "Major Event of
Default" had occurred and was continuing under the Loan Agreement (as defined in
the  Deposit  Agreement)  and  instructing  you  not to pay to the Borrower (and
instead,  to add to the amount on deposit in the Account) any amount of interest
earned  on  the  Account  from and after the date specified in that notice.  The
Lender  hereby  notifies you that the "Major Event of Default" specified in that
notice  no longer exists (or the Lender otherwise waives its rights with respect
thereto),  and,  accordingly,  the  Lender  hereby  instructs  you to pay to the
Borrower  (at  the  Borrower's  request)  all  amounts of interest earned on the
Account  at  any  time.
The undersigned represents for your benefit that it is authorized to execute and
deliver this notice to you in accordance with the terms of the Deposit Agreement
and  further represents for the benefit of the Borrower that it is authorized to
execute  and  deliver  this  notice  in  accordance  with  the terms of the Loan
Agreement  referred  to  in  the  Deposit  Agreement.
     Very  truly  yours,

Commonwealth  of  Australia

By:
Name:
Title:
cc:     Syntroleum  Australia  Credit  Corporation