Control #: _________



                          REGISTRATION RIGHTS AGREEMENT
                          -----------------------------

     This Registration Rights Agreement (the "RR Agreement") is made and entered
into  as  of the day of January, 2001, by and between Penn Octane Corporation, a
Delaware corporation (the "Company"), and, a ______________________________ (the
"Purchaser"),  with  reference  to  the  following  facts:


                                    RECITALS
                                    --------

     A.     Concurrently  herewith,  the  Company and the Purchaser are entering
into  that  certain  Purchase  Agreement,  dated  as  of even date herewith (the
"Agreement").

     B.     This  RR Agreement is the Registration Rights Agreement contemplated
by  the  Agreement.

     NOW,  THEREFORE,  in  consideration  of the premises and for other good and
valuable  consideration,  the  receipt  and  sufficiency  of  which  are  hereby
acknowledged,  the  parties  agree  as  follows:

1.     Certain  Definitions
       --------------------

     Unless otherwise indicated or unless the  context  otherwise  requires, (a)
capitalized  terms  used  herein  without  definition  shall have the respective
meanings  set forth in the Agreement; and (b) the following terms shall have the
following  meanings:

     Effective  Date:  January,  2001.
     ----------------

     Exchange  Act:  The  Securities  Exchange  Act of 1934, as amended, and the
     --------------
rules  and  regulations  of  the  Commission  promulgated  thereunder.

     Prospectus:  The  prospectus  included  in  any  Registration  Statement
     -----------
(including,  without  limitation,  a  prospectus  that  discloses  information
previously  omitted from a prospectus filed as part of an effective registration
statement in reliance upon Securities Act Rule 430A), as amended or supplemented
by  any  prospectus supplement, with respect to the terms of the offering of any
portion of the Registrable Securities covered by such Registration Statement and
all other amendments and supplements to the prospectus, including post-effective
amendments,  and  all  material  incorporated  by  reference  or  deemed  to  be
incorporated  by  reference  in  such  prospectus.


                                 Page 97 of 106

     Registrable Securities:  Subject to the other provisions hereof, all shares
     -----------------------
of  Common  Stock  issued  or  issuable  to  the  Investors upon exercise of the
Warrants  and all shares of Common Stock issued or issuable to PMG upon exercise
of  the  warrant  being  issued  to  PMG  (the "PMG Warrant") as contemplated by
Section  7  of  the  Agreement.  The  Warrants  and  the  PMG  Warrant  are  not
Registrable  Securities  hereunder.  As  to  any  Registrable  Securities,  such
securities  shall  cease  to  be  Registrable Securities when (a) a registration
statement  with  respect  to  the  sale  of  such  securities  shall have become
effective  under the Securities Act and such securities shall have been disposed
of  pursuant to such effective registration statement, (b) such securities shall
have  been  distributed  pursuant  to  Rule 144 or any similar provision then in
force,  under  the Securities Act, (c) such securities shall have been otherwise
transferred,  new  certificates  or  other  evidences  of ownership for them not
bearing  a  legend  restricting  further  transfer  and  not subject to any stop
transfer  order  or  other restrictions on transfer shall have been delivered by
the  Company  and  subsequent  disposition  of such securities shall not require
registration or qualification of such securities under the Securities Act or any
state  securities laws then in force, (d) the holder thereof is eligible to sell
such securities under Rule 144 without regard to the volume limitations thereof,
or  (e) the sale of such securities by the Investor (or PMG, as the case may be)
otherwise  shall no longer require registration under the Securities Act or such
securities shall cease to be outstanding, or (f) to the extent that the Investor
(or  PMG,  or  any employee of PMG to whom PMG, with the consent of the Company,
has  transferred  a portion of the PMG Warrant, as the case may be) is no longer
the  sole  record  and beneficial owner of such Registrable Securities or of his
Warrant  (or  PMG  Warrant,  as  the  case  may  be)  in  respect  of which such
Registrable  Securities have not yet been issued but are issuable.  Reference is
hereby  made  to  Section  10  of  the Agreement.  In the sole discretion of the
Company,  the  Company  shall  be entitled to add to the foregoing definition of
Registrable  Securities  (a)  all  or any equity securities of the Company which
have  been  or  may  be  issued  or issuable to the Additional Fund Providers as
contemplated by Section 10 of the Agreement, or (b) all equity securities of the
Company  which  are  issued  or  issuable  in  connection  with any or any other
transaction(s) approved either by PMG or by the owners of a majority in interest
of  the  holders  of  Registrable  Securities.

     Registration  Expenses:  All  expenses incurred by the Company in complying
     ----------------------
with  Section  3  hereof,  including  all registration and filing fees, printing
expenses,  fees  and disbursements of counsel for the Company, and blue sky fees
and  expenses.

     Registration  Statement:  Any  registration  statement of the Company which
     ------------------------
covers  any  of the Registrable Securities pursuant to the provisions of this RR
Agreement,  including  the  Prospectus,  amendments  and  supplements  to  such
registration  statement,  including post-effective amendments, all exhibits, and
all material incorporated by reference or deemed to be incorporated reference in
such  registration  statement.


                                 Page 98 of 106

     Required Registration:  Any registration occurring pursuant to Section 3(a)
     ----------------------
hereof.

     Restricted  Securities:  The  Warrant  Shares  and  the  shares issued upon
     -----------------------
exercise of the PMG Warrant, in each case upon original issuance thereof, and at
all  times subsequent thereto, until, in the case of any such security, it is no
longer  required  to  bear the legend set forth on such security pursuant to the
terms  of  the  security,  the  Agreement  and  applicable  law.

     Rule  144:  Rule  144 under the Securities Act, as such Rule may be amended
     ----------
from  time  to  time, or any similar rule or regulation hereafter adopted by the
Commission  (excluding  Rule  144A).

2.     Securities  Subject  to  this  RR  Agreement
       --------------------------------------------

The securities entitled to the benefits of this RR Agreement are the Registrable
Securities.

3.     Registration  Rights.
       ---------------------

     (a)     Required  Registration
             ----------------------

          (i)     On  or  before  March 31, 2001, or, if the Company is not then
                  eligible to use Form S-3 for such purposes,  April  30,  2001,
                  the Company shall  use its reasonable  best  efforts  to  file
                  with the Commission and have declared effective a Registration
                  Statement   for   the   purpose   of   registering,  upon  the
                  effectiveness of such Registration Statement, the  Registrable
                  Securities under the Securities Act.

          (ii)    The Company shall use  its reasonable best efforts to maintain
                  with the Commission a Registration Statement that is effective
                  and causes the Warrant  Shares  to  be  registered  under  the
                  Securities Act until the date on which the Warrant Shares  are
                  eligible for  resale  or  other  disposition  under  Rule  144
                  without regard to the volume limitations thereof.

          (iii)   The  Purchaser  agrees  to  include  all  of  his  Registrable
                  Securities  in  such Registration Statement,  and  each  other
                  registered  holder  of  Registrable  Securities  shall  agree
                  likewise.

     (b)     "Piggy-Back"  Registrations.
             ----------------------------

          If at any time after the Effective Date the Company shall determine to
register any of its Common Stock under the Securities Act, whether in connection
with  a  public  offering  by the Company, a public offering by shareholders, or
both, including, without limitation, by means of any shelf registration pursuant
to  Rule  415  under  the  Securities Act or any similar rule or regulation, but


                                 Page 99 of 106

other  than  a  Required Registration or a registration to implement an employee
benefit  or  dividend  reinvestment  plan  or effect a business combination, the
Company  shall promptly give written notice thereof to the registered holders of
Registrable  Securities  and  shall  use  its  reasonable  efforts to effect the
registration  under  the Securities Act of such Registrable Securities as may be
requested in a writing delivered to the Company within 30 days after such notice
by  such  holders  as  well  as  to  include  such Registrable Securities in any
notifications,  registrations  or qualifications under any state securities laws
which  shall be made or obtained with respect to the securities being registered
by  the  Company;  provided,  however,  that (a) any distribution of Registrable
Securities  pursuant  to  such  registration  shall be managed by the investment
banking  firm, if any, managing the distribution of the securities being offered
by  the  Company on the same terms as all other securities to be registered, and
(b)  the  Company  shall  not  be  required  under  this Section 3(b) to include
Registrable  Securities  in  any registration of securities if the Company shall
have  been  advised  by the investment banking firm managing the offering of the
securities proposed to be registered by the Company or others that the inclusion
of Registrable Securities in such offering would interfere with the orderly sale
of  such  securities  which the Company or others propose to register; provided,
however,  that  in  making  any  determination under this Section 3(b) as to the
inclusion  of  the  Registrable  Securities  in  any  such offering, Registrable
Securities  shall be registered on a pro-rata basis with any other securities as
to which the Company has granted or may in the future grant registration rights.

     (c)     Certain  Exceptions.   Notwithstanding  the preceding provisions of
              ------------------
this  Section  3,  the  Company  shall have no obligations under Section 3(a) or
Section 3(b) hereof in respect of any Registrable Securities that are covered by
an  effective Registration Statement that has been filed by the Company pursuant
to  Section  3(a)  or  Section  3(b) hereof; or which the Company has offered to
include  in a Registration Statement but the holder has declined such inclusion.

4.     Registration  Procedures.
       ------------------------

     (a)     In  connection  with any registration pursuant to Section 3 hereof,
the  Company  will prepare and file with the Commission a Registration Statement
on  any  form  for  which  the  Company  then qualifies and which the Company or
counsel  for  the  Company  shall  deem appropriate, and use its reasonable best
efforts  to cause such Registration Statement to become effective; provided that
                                                                   --------
before  filing with the Commission a Registration Statement or prospectus or any
amendments  or  supplements  thereto,  the  Company  will  (i)  furnish  to  the
registered  holders  of  the  Registrable  Securities  to  be  included  in such
registration  and  to  one counsel selected by such registered holders copies of
the  Prospectus  proposed  to  be filed as a part of the Registration Statement,
which  Prospectus  will  be  subject  to  the  prompt review and comment by such
counsel,  and  (ii) notify  such registered holders of any stop order issued, or
to  the  knowledge  of  the  Company  threatened, by the Commission and take all
reasonable actions required to prevent the entry of such stop order or to remove
it  if  entered.  The  Company  will  also  (i)  promptly notify such registered
holders  and  counsel  of the effectiveness of such Registration Statement, (ii)
furnish  to  such  registered  holders and counsel such number of copies of such
Registration  Statement,  and  each  amendment  and  supplement  thereto,  the
Prospectus  included  in such Registration Statement and such other documents as
such  registered  holders  may reasonably request; (iii) use its reasonable best
efforts to register or qualify such securities to be registered under such other
securities or blue sky laws of such states as such registered holders reasonably
request; (iv) use its reasonable best efforts to cause all such securities to be
registered  to be listed on each securities exchange on which similar securities


                                Page 100 of 106

issued  by  the  Company  are  then listed for trading and to provide a transfer
agent  and  registrar  for  such  securities  to be registered no later than the
effective  date  of  such  Registration  Statement;  and  (v) use its reasonable
efforts  to  comply  with all applicable rules and regulations of the Commission
and  the  states  and  make  available  to  such  registered  holders as soon as
reasonably  practicable  (but not more than eighteen months) after the effective
date  of  the  Registration  Statement, an earnings statement that satisfies the
provisions  of  Section  11(a)  of  the  Securities  Act  and  the  rules of the
Commission  thereunder.  The  provisions of this Section 4 shall not require the
Company  to  qualify as a foreign corporation or as a dealer in securities or to
execute  or file any general consent to service of process under the laws of any
such  jurisdiction  where  it  is  not  so  subject.

     (b)     In  connection  with  any  effective  Registration  Statement filed
pursuant  to  this RR Agreement, the Company will promptly notify the registered
holders  of  Registrable  Securities  registered  pursuant  to  the Registration
Statement  of  the  happening  of  any event known to the Company as a result of
which  the Registration Statement or any Prospectus contains an untrue statement
of  a  material  fact  or omits to state any material fact required to be stated
therein  or  necessary to make the statements therein not misleading in light of
the  circumstances  then  existing, and will promptly prepare and furnish to the
holders  of  Registrable Securities a supplement or amendment to such prospectus
so  that  the  Registration  Statement  or such Prospectus will not contain such
untrue  statement  of  a  material  fact or omit to state any such material fact
required  to  be  stated therein or necessary to make the statements therein not
misleading  in  light  of  the  circumstances  then  existing.  Notwithstanding
anything  to  the  contrary  set  forth  in  this  RR  Agreement, if the Company
determines  in its reasonable business judgment that a Registration Statement or
Prospectus (whether or not theretofore filed) or an amendment or supplement to a
Registration  Statement  or  Prospectus  would  interfere  with  any  material
financing,  acquisition,  corporate  reorganization, or other material corporate
transaction  or  development  involving  the  Company, the Company may delay the
preparation  and  filing of such Registration Statement, Prospectus amendment or
supplement,  or  suspend  the  effectiveness of any Registration Statement which
theretofore  has  been  declared effective by the Commission, for such period as
may  be  reasonably  required in order to complete or make a public announcement
with  respect  to  such material transaction or development (it being understood
that  the Company shall be obligated to extend the period of time it is required
to  maintain  in effect any such Registration Statement to take into account the
period  of  time that such holders of Registrable Securities are unable to offer
or  sell  Registrable  Securities  by  reason  of  this  Section  4(c)).

5.     Holdback  Agreements,  etc.
       ---------------------------

     (a)     Restrictions  on  Public Sale by Holders of Registrable Securities.
             ------------------------------------------------------------------
The  Purchaser and each other holder of Registrable Securities whose Registrable
Securities  are  covered by a Registration Statement filed pursuant to Section 3
hereof  agrees,  if  requested  by  the managing underwriters in an underwritten
offering  (to  the  extent  timely  notified  in  writing  by the Company or the
managing  underwriters),  not  to  effect  any  public  sale  or distribution of
securities  of  the  Company of any class, including a sale pursuant to Rule 144
(except  as  part of such underwritten offering), during the 10-day period prior
to  and  the  90-day period beginning on, the effective date of any Registration
Statement.


                                Page 101 of 106

     (b)     Exclusions  by Law. The provisions of Section 5(a) hereof shall not
             -------------------
apply  to  any  holder  of Registrable Securities if such holder is prevented by
applicable  law  from  entering into any such agreement; provided, however, that
any  such  holder  shall  undertake  in  its  request to participate in any such
underwritten offering not to effect any public sale or distribution of the class
of Registrable Securities covered by such Registration Statement (except as part
of  such  underwritten  offering) during such period unless it has provided five
(5)  business  days  prior  written  notice  of such sale or distribution to the
managing  underwriter  or  underwriters.

     (c)     Full  Cooperation.  The  Purchaser  and  each  other  holder  of
             ------------------
Registrable  Securities  included or proposed to be included in any Registration
Statement  shall, as a condition precedent to the Company having any obligations
to  such  holder  hereunder, cooperate fully in all reasonable respects with the
Company  in  connection  with  the  preparation  and  filing of the Registration
Statement,  and  otherwise  in  connection  with  such  registration  and  any
underwriting  thereof;  and  timely comply with all of such holder's obligations
hereunder.

6.     Indemnification
       ---------------

     (a)     Indemnification  by  Company.  The Company shall indemnify and hold
             ----------------------------
harmless,  to  the  full  extent  permitted  by  law, each holder of Registrable
Securities,  its  officers,  directors,  agents  and  employees, each person who
controls  such holder (within the meaning of Section 15 of the Securities Act or
Section  20  of the Exchange Act), and the partners, officers, directors, agents
or  employees  of  any  such  controlling  person,  from and against all losses,
claims,  damages,  liabilities,  and  reasonable  costs  (including,  without
limitation,  reasonable  attorneys'  fees reasonably incurred in accordance with
the  provisions  of  this  Section  6,  but  subject  to  the limitations herein
provided)  and  expenses  (collectively, "Losses"), arising out of or based upon
any untrue statement of a material fact contained in any Registration Statement,
Prospectus  or  preliminary  prospectus,  or  arising  out  of or based upon any
omission  of  a material fact required to be stated therein or necessary to make
the  statements therein in light of the circumstances under which they were made
(in  the  case of any Prospectus) not misleading, except insofar as the same are
based  solely  upon  information furnished to the Company by such holder for use
therein;  provided,  however,  that  the Company shall not be liable in any such
case  to  the extent that any such Loss arises out of or is based upon an untrue
statement  or  omission  made in any preliminary prospectus or Prospectus if (i)
such  holder  failed  to  send or deliver a copy of the Prospectus or Prospectus
supplement  with or prior to the delivery of written confirmation of the sale of
Registrable  Securities  and  (ii) the Prospectus or Prospectus supplement would
have  corrected  such  untrue  statement  or  omission.


                                Page 102 of 106

     (b)     Indemnification by Holder of Registrable Securities.  In connection
             ---------------------------------------------------
with  any  Registration Statement in which a holder of Registrable Securities is
participating,  such  holder of Registrable Securities shall, promptly following
the  Company's  request  therefor,  furnish  to  the  Company  in  writing  such
information  concerning  such holder and its proposed disposition of Registrable
Securities  pursuant  to such registration as the Company may reasonably request
for  use  in  connection  with  any  Registration Statement or Prospectus.  Each
Investor shall indemnify and hold harmless, to the full extent permitted by law,
the  Company, and its officers, directors, agents and employees, each person who
controls  the Company (within the meaning of Section 15 of the Securities Act or
Section 20 of the Exchange Act) and the officers, directors, agents or employees
of  any  such  controlling person, from and against all Losses arising out of or
based upon any untrue statement of a material fact contained in any Registration
Statement, Prospectus or preliminary prospectus, or arising out of or based upon
any  omission  of  a material fact required to be stated therein or necessary to
make  the statements therein in light of the circumstances under which they were
made  (in the case of any Prospectus) not misleading, to the extent, but only to
the  extent,  that  such  untrue  statement  or  omission  is  contained  in any
information  so  furnished  in  writing by such holder to the Company for use in
such  Registration  Statement,  Prospectus  or  preliminary  prospectus.  Such
indemnity  shall remain in full force and effect regardless of any investigation
made  by  or  on behalf of the Company or any holder and any of their respective
directors,  officers,  agents,  employees  or  controlling  persons  (within the
meaning  of  Section 15 of the Securities Act or Section 20 of the Exchange Act)
and  shall  survive  the  transfer  of  such  securities  by  such  holder.

     (c)     Conduct  of  Indemnification  Proceedings.  If  any  action  or
             ------------------------------------------
proceeding  (including  any  governmental  investigation  or  inquiry)  shall be
brought  or any claim shall be asserted against any person entitled to indemnity
hereunder (an "indemnified party"), such indemnified party shall promptly notify
the  party  from  which  such  indemnity is sought (the "indemnifying party") in
writing,  and the indemnifying party shall assume the defense thereof, including
the  employment  of  counsel  reasonably  satisfactory  to the indemnified party
(unless  the  Company  is  the  indemnifying  party,  in which event it shall be
entitled to select counsel satisfactory to it in its discretion) and the payment
of  all  fees and expenses incurred by the indemnifying party in connection with
the  defense  thereof.  All reasonable fees and expenses (including any fees and
expenses  theretofore  incurred in connection with investigating or preparing to
defend such action or proceeding) theretofore incurred by the indemnified party,
shall  be  paid  to the indemnified party, after they are so incurred, within 60
days  of  written  notice  thereof to the indemnifying party; provided, however,
that if, in accordance with this Section 6, the indemnifying party is not liable
to  the  indemnified party, such fees and expenses shall be returned promptly to
the  indemnifying  party.  Any  such  indemnified  party shall have the right to
employ  separate  counsel  in  any  such  action,  claim  or  proceeding  and to
participate  in  the  defense thereof, but the fees and expenses of such counsel
shall  be the sole expense of such indemnified party unless (a) the indemnifying
party has agreed to pay such fees and expenses, (b) the indemnifying party shall
have  failed  promptly to assume the defense of such action, claim or proceeding
and  to  employ  counsel reasonably satisfactory to the indemnified party in any
such  action,  claim or proceeding, or (c) the named parties to any such action,
claim  or  proceeding  (including  any  impleaded  parties)  include  both  such
indemnified  party  and the indemnifying party, and such indemnified party shall
have  been  advised  by  counsel,  acting reasonably, that there are one or more
legal  defenses  available to it which are different from or additional to those
available  to  the  indemnifying party (in which case, if such indemnified party
notifies  the  indemnifying  party  in writing that it elects to employ separate
counsel  at  the  expense  (it being understood and agreed that the indemnifying
party   shall   be  responsible  only  for  reasonable  such  expenses)  of  the


                                Page 103 of 106

indemnifying  party,  the  indemnifying party shall not have the right to assume
the  defense  of  such action, claim or proceeding on behalf of such indemnified
party,  it  being understood, however, that the indemnifying party shall not, in
connection  with  any  one  such  action,  claim  or  proceeding or separate but
substantially  similar  or  related  actions,  claims or proceedings in the same
jurisdiction  arising  out  of the same general allegations or circumstances, be
liable  for  the  reasonable fees and expenses of more than one separate firm of
attorneys  (together  with  appropriate  local counsel) at any time for all such
indemnified  parties  hereunder, unless in the reasonable opinion of counsel for
such  indemnified  party  a  bona  fide conflict of interest exists between such
indemnified party and any other of such indemnified parties with respect to such
action,  claim  or  proceeding,  in  which event the indemnifying party shall be
obligated  to pay the reasonable fees and expenses of such additional counsel or
counsels).  No indemnifying party will consent to entry of any judgment or enter
into  any settlement which does not include as an unconditional term thereof the
release of such indemnified party from all liability in respect to such claim or
litigation  without  the written consent (which consent will not be unreasonably
withheld) of the indemnified party.  No indemnified party shall consent to entry
of any judgment or enter into any set-tlement without the written consent (which
consent  will not be unreasonably withheld) of the indemnifying party from which
indemnity  or  contribution  is  sought.

     (d)     Contribution.  If  the indemnification provided for in this Section
             ------------
6 from the indemnifying party is unavailable to an in-demnified party in respect
of  any  Losses, then each applicable indemnifying party in lieu of indemnifying
such  indemnified party hereunder shall contribute to the amount paid or payable
by  such  indemnified party as a result of such Losses, in such proportion as is
appropriate  to  reflect  the  relative  fault  of  the  indemnifying  party and
indemnified  party in connection with the actions, statements or omissions which
resulted  in such Losses as well as any other relevant equitable considerations.
The relative fault of such indemnifying party and the indemnified party shall be
determined  by reference to, among other things, whether any action in question,
including  any  untrue  statement  of  a material fact or omission of a material
fact,  has  been  taken  or made by, or relates to information supplied by, such
indemnifying  party  or  indemnified  party,  and  the parties' relative intent,
knowledge,  access  to  information  and  opportunity to correct or prevent such
action,  statement  or  omission.  The  amount  paid  or payable by a party as a
result  of any Losses shall be deemed to include, subject to the limitations set
forth  in  this  Section  6,  any  reasonable  legal  or  other fees or expenses
reasonably  incurred  by  such party in connection with any action, suit, claim,
investigation  or  proceeding.

     The  parties  hereto  agree  that  it  would  not  be just and equitable if
contribution  pursuant  to  this  Section  6(d)  were  determined  by  pro  rata
allocation or by any other method of allocation which does not take into account
the  equitable considerations referred to in the immediately preceding paragraph
of  this Section 6(d).  No person guilty of fraudulent misrepresentation (within
the  meaning  of  Section  11(f)  of  the  Securities  Act) shall be entitled to
contribution  from  any  person  who  was  not  guilty  of  such  fraudulent
misrepresentation.


                                Page 104 of 106

7.     Underwritten  Registrations
       ---------------------------

     Notwithstanding anything to the contrary set forth in this RR Agreement, if
any  of the Registrable Securities covered by any registration are to be sold in
an  underwritten  offering,  the  investment  banker  or  investment bankers and
manager  or  managers  that will administer the offering will be selected by the
Company  in  its  sole discretion.  Notwithstanding anything to the contrary set
forth  in this RR Agreement, no holder of Registrable Securities may participate
in any underwritten registration hereunder unless such holder (i) agrees to sell
such  holder's  Registrable Securities on the basis provided in the underwriting
arrangements  approved  by  the  Company,  and  (ii)  completes and executes all
questionnaires,  powers  of  attorney,  indemnities, underwriting agreements and
other  documents  required  under  the  terms of such underwriting arrangements.

8.     Miscellaneous
       -------------

     (a)     Amendments  and  Waivers.  Except  to  the  extent  otherwise
             ------------------------
contemplated  by  the  provisions  included  in  the  definition  of Registrable
Securities  contained  in Section 1 hereof, the provisions of this RR Agreement,
including  the  provisions  of  this  sentence,  may not be amended, modified or
supplemented,  and  waivers or consents to departures from the provisions hereof
may  not  be given unless the Company obtains the written consent (which consent
will not unreasonably be withheld) of holders of at least a majority of the then
outstanding  Registrable  Securities affected by such amendment, modification or
supplement.  Notwithstanding  the  foregoing, a waiver or consent to depart from
the  provisions hereof with respect to a matter which relates exclusively to the
rights  of  holders  of  Registrable  Securities whose securities are being sold
pursuant  to  a Registration Statement and which does not directly or indirectly
affect  the rights of holders of Registrable Securities whose securities are not
being  sold pursuant to such Registration Statement may be given by holders of a
majority  of  the  Registrable  Securities  being  sold  by  such  holders.

     (b)     Notices.  All  notices  and  other  communications  required  or
             -------
permitted  to be made to the Purchaser or the Company hereunder shall be made as
provided  in  Section  14  of  the  Agreement.

     (c)     Transfer  of  Registration  Rights.  The  rights  granted  to  the
             ----------------------------------
Purchaser  pursuant  to  this RR Agreement to cause the Company to register such
Purchaser's  Registrable Securities may not be assigned or otherwise transferred
in  any  way.

     (d)     Counterparts.  This  RR  Agreement  may  be executed in two or more
             ------------
counterparts,  each  of which when so executed shall be deemed to be an original
and  all  of  which  taken together shall constitute one and the same agreement.

     (e)     Headings.  The headings in this RR Agreement are for convenience of
             --------
reference  only  and  shall  not  limit  or otherwise affect the meaning hereof.


                                Page 105 of 106

     (f)     Governing  Law.  This  RR  Agreement  shall  be  governed  by  and
             ---------------
construed in accordance with the laws of the State of Delaware without regard to
principles  of  conflict  of  laws.

     (g)     Severability.  If  any  term, provision, covenant or restriction of
             ------------
this  RR  Agreement  is held by a court of competent jurisdiction to be invalid,
void  or  unenforceable,  the  remainder of the terms, provisions, covenants and
restrictions set forth herein shall remain in full force and effect and shall in
no  way  be  affected, impaired or invalidated, and the parties hereto shall use
their  best  efforts to find and employ an alternative means to achieve the same
or  substantially  the same result as that contemplated by such term, provision,
covenant  or  restriction.  It  is  hereby  stipulated  and  declared  to be the
intention  of  the  parties  that  they would have executed the remaining terms,
provisions,  covenants  and restrictions without including any of such which may
be  hereafter  declared  invalid,  void  or  unenforceable.

     IN  WITNESS  WHEREOF, the parties have executed this RR Agreement as of the
date  first  above  written.

                                   PURCHASER:
                                   ---------

                                   __________________________________________



                                   By:_______________________________________
                                      Name:__________________________________
                                      Title:_________________________________


                                   PENN  OCTANE  CORPORATION


                                   By:_______________________________________
                                      Ian  T.  Bothwell, Vice President and
                                      Chief Financial Officer


                                Page 106 of 106