PURCHASE, SALE AND SERVICE AGREEMENT
                             FOR PROPANE/BUTANE MIX
                              KING RANCH GAS PLANT


This  Purchase,  Sale and Service Agreement for Propane/Butane Mix ("AGREEMENT")
is  entered  into  effective as of October 1, 1999 by and between Exxon Company,
U.S.A. (a division of Exxon Corporation), a New Jersey Corporation ("EXXON") and
Penn  Octane  Corporation,  a  Delaware  corporation  "(POC").

                                    RECITALS

A.     Exxon  currently  owns  and  operates  the  King  Ranch  Gas  Plant which
processes  gas  for  the  extraction  of certain products, including propane and
butane.  Exxon desires to sell to POC a propane/butane mix produced at the Plant
and  to  arrange  for  or  provide  to  POC  certain transportation, pumping and
blending  services.  Exxon  has  agreed  to install additional facilities and/or
equipment  at  the  Plant  to  enable Exxon to provide such pumping and blending
services.

B.     POC  intends to enter into contracts with suppliers in the Corpus Christi
area  to  purchase additional propane to deliver to the King Ranch Gas Plant for
blending  with  Exxon's  equity  propane  and  butane.

C.     Exxon  Pipeline Company owns an idle twelve-inch (12") pipeline that runs
from Corpus Christi to the King Ranch Gas Plant and has agreed with Exxon, under
certain  conditions  set  forth  in  this  Agreement and in a separate agreement
between  Exxon  and  Exxon  Pipeline Company, to make necessary modifications to
this  pipeline and to make this pipeline available for propane delivery service.

D.     POC  owns a terminal in Brownsville, Texas and holds a long term lease on
a  six-inch  (6") pipeline (which is defined as the Ella-Brownsville Pipeline in
Article  1) that runs from the King Ranch Gas Plant to its Brownsville terminal.
POC desires to purchase a propane/butane mix from Exxon and to use this six-inch
(6")  pipeline  to  deliver  such  mix  from  the  King  Ranch  Gas Plant to the
Brownsville  terminal.

E.     POC  is currently constructing a pipeline from POC's Brownsville terminal
to  a  terminal  that  POC  is  also  constructing  in  Matamoros,  Mexico.

F.     POC  has  entered  into contracts to sell the propane/butane mix to Pemex
and/or  a  group  of  LPG  resellers  in  Northeast  Mexico.

G.     Exxon  and  POC  desire  to  enter  into this Agreement to document their
agreements  with  respect to transportation, pumping and blending services to be
provided  directly  or  indirectly  by  Exxon and the terms and conditions under
which  Exxon will make capital investments in the Plant and contract with EPC to
make capital investments and long term volume commitments, and under which Exxon
will  sell  and  POC  will  purchase  the  propane/butane  mix.

                                        1

                                   AGREEMENTS

Now,  therefore, for and in consideration of the premises, mutual covenants, and
agreements  contained  in  this  Agreement  and  other  good  and  valuable
consideration,  the  receipt  and  sufficiency of which are hereby acknowledged,
Exxon  and  POC  hereby  agree  as  follows:

                                    ARTICLE 1
                                   Definitions
                                   -----------

1.1     Definitions.     For the purposes of this Agreement, the following terms
        -----------
shall  have  the  designated  meanings  set  forth  below:

"AFFILIATE"  shall  mean  an affiliated or subsidiary corporation or other legal
entity  that  is  owned or controlled by a Party or any affiliated or subsidiary
corporation  or  other legal entity that is owned or controlled by its parent or
related entity.  As used in this definition, "owned or controlled by" means owns
or  holds  the  right  to  vote  fifty percent (50%) or more of the stock of the
entity.  In  the  case  of  POC,  the  term "Affiliate" shall also include POC's
affiliated  entity,  Penn Octane Mexico; any reference in this Agreement to Penn
Octane  Mexico  shall  include  any  successor  entity.

"ALTERNATE  DELIVERY POINT(S)" shall mean either the point of connection between
the  Plant  and  the Ella-Seadrift Pipeline at Ella-Seadrift Propane Meter #5 or
the  point of connection between the Plant and the Dean Pipeline at Dean Propane
Meter  #6,  or  both,  as  elected  by  POC  pursuant  to  Section  5.2.

"ASTM"  shall  mean  the  American  Society  for  Testing  and  Materials.

"BARREL"  shall  mean  a barrel of forty-two (42) United States gallons at sixty
degrees  Fahrenheit  (60  F)  and  at  equilibrium vapor pressure of the liquid.

"BUSINESS  DAY"  shall  mean  a calendar day exclusive of Saturdays, Sundays and
legal  holidays.

"BUTANE  INDEX PRICE" shall mean the price determined monthly by calculating the
simple arithmetic average of the non-TET low normal butane price for Mt. Belvieu
for  all days prices are published by OPIS during the applicable Delivery Month.

"CALENDAR YEAR" shall mean each twelve (12) month period beginning at 7:00 a.m.,
local  time, on the first day of January and ending at 7:00 a.m., local time, on
the  first  day  of  January  of  the  next  succeeding  year.

"CCPL  PROPANE  METER  #2"  shall mean the custody transfer meter located at the
point  of  connection from the CCPL to the Plant which is identified as Meter #2
on  Exhibit  "C".  Such  meter  measures  the POC Propane delivered to the Plant
through  the  CCPL.

"CORPUS  CHRISTI  PIPELINE"  or "CCPL" shall mean the twelve-inch (12") pipeline
currently  owned  by EPC which generally runs from the Coastal Corporation meter
station  in Nueces County, Texas near the city of Corpus Christi to the inlet of
the  King  Ranch  Gas  Plant.

                                        2

"DAY"  shall  mean  a period of twenty-four (24) consecutive hours commencing at
7:00  a.m.,  local  time.

"DEAN  PIPELINE"  shall  mean the six-inch (6") pipeline currently owned by Duke
Energy  NGL  Services, Inc. which connects to the Plant and generally runs north
from  the  Plant  to  Mt.  Belvieu.

"DEAN  PROPANE METER #6" shall mean the meter located at the point of connection
from  the  Plant to the Dean Pipeline which is identified as Meter #6 on Exhibit
"C".  Such  meter  measures  the  Exxon  Equity  Propane  delivered  to the Dean
Pipeline  on  an  emergency  basis.

"DELIVERY  DEFICIENCY  FEE"  shall  have  the  meaning set forth in Section 6.8.

"DELIVERY  MONTH"  shall mean a period of one (1) month commencing at 7:00 a.m.,
local  time, on the first day of a calendar month and ending at 7:00 a.m., local
time,  on  the  first  day  of  the  next  succeeding  month.

"DELIVERY  POINT"  shall  mean the point of connection between the outlet of the
Plant  shipping  station  and  the  Ella-Brownsville  Pipeline.

"DELIVERY  WEEK"  shall  mean  a period of one (1) week commencing at 7:00 a.m.,
local time, on each Monday and ending at 7:00 a.m., local time, on Monday of the
next  succeeding  week.

"EFFECTIVE  DATE"  shall  mean  October  1,  1999.

"ELLA-BROWNSVILLE  PIPELINE"  shall  mean  the  six-inch (6") pipeline currently
owned  by  Union Carbide Company and leased to POC which generally runs from the
Plant  to  the  POC  terminal  located  in  Brownsville,  Texas.

"ELLA-BROWNSVILLE  PIPELINE  CAPACITY" shall mean the maximum capacity from time
to  time  available in the Ella-Brownsville Pipeline.  As of the Effective Date,
the  maximum  capacity is sixteen thousand Barrels per day (16kbd) at a pressure
of  one  thousand  seven  hundred  fifty  (1750)  Psig.

"ELLA-SEADRIFT PIPELINE" shall mean the eight-inch (8") pipeline currently owned
by Union Carbide Company which generally runs from the Plant to the Markham Dome
storage  facility.

"ELLA-SEADRIFT  PROPANE  METER  #3" shall mean the meter located at the point of
connection  from  the Ella-Seadrift Pipeline to the Plant which is identified as
Meter  #3  on Exhibit "C".  Such meter measures the POC Propane delivered to the
Plant  on  an  emergency  basis.

"ELLA-SEADRIFT  PROPANE  METER  #5" shall mean the meter located at the point of
connection  from  the Plant to the Ella-Seadrift Pipeline which is identified as
Meter #5 on Exhibit "C".  Such meter measures the Exxon Equity Propane delivered
to  the  Ella-Seadrift  Pipeline  on  an  emergency  basis.

"EPC"  shall  mean  Exxon  Pipeline  Company, a wholly owned subsidiary of Exxon
Corporation.

                                        3

"EPC  TARIFF" shall mean the Exxon Pipeline Company Texas RRC Tariff No. 494 for
the  Corpus  Christi  Pipeline on file from time to time with the Texas Railroad
Commission  or other regulatory body having jurisdiction over the Corpus Christi
Pipeline  pursuant  to  which  propane  is  transported  for  shippers.

"EXXON  EQUITY  BUTANE"  shall  mean  the volume of butane produced at the Plant
which  is  owned  or  controlled by Exxon and which meets the specifications set
forth  in  Exhibit  "A".

"EXXON  EQUITY  PRODUCT" shall mean the portion of the Mix produced at the Plant
consisting  of  (a) the volume of Exxon Equity Propane measured at Plant Propane
Meter  #1,  (b)  the  volume  of  Exxon Equity Propane measured at Ella-Seadrift
Propane  Meter  #5  or  Dean Propane Meter #6, or both, if POC elects to receive
propane  at  the  Alternate  Delivery Points, and (c) the volume of Exxon Equity
Butane measured at Plant Butane Meter #4.  The term "Exxon Equity Product" shall
specifically  exclude  POC  Propane.

"EXXON  EQUITY  PROPANE"  shall mean the volume of propane produced at the Plant
which  is  owned  or  controlled by Exxon and which meets the specifications set
forth  in  Exhibit  "A".

"GALLON" shall mean a United States gallon of two hundred thirty one (231) cubic
inches of liquid at sixty degrees Fahrenheit (60 F) and at the equilibrium vapor
pressure  of  the  liquid.

"KB"  shall  mean  one  thousand  Barrels.

"KBD"  shall  mean  thousand  Barrels  per  day.

"LPG"  shall  mean  liquefied  petroleum  gas.

"MATAMOROS AVERAGE MIX PRICE" shall mean the average of all Matamoros-into-truck
or  tank-car  wholesale  prices  (indexed to Mt. Belvieu and expressed in United
States dollars) included in term contracts of one (1) year or longer between POC
(or its Affiliate, Penn Octane Mexico) and its LPG resellers in Northeast Mexico
for  deliveries of Mix FOB Matamoros.  Contracts for delivery of Mix under terms
other  than  FOB Matamoros shall be included in the calculation of the Matamoros
Average  Mix  Price;  provided,  however,  the  actual transportation costs from
Matamoros  to  the delivery point and the actual costs of operating any terminal
at  remote delivery points, if any, shall be deducted from such contract prices.

"MAXIMUM DELIVERY VOLUME" shall mean a volume for a particular time period equal
to the difference between the Ella-Brownsville Pipeline Capacity for such period
and  the  sum  of  the  Exxon  Equity Propane measured at Plant Propane Meter #1
during such period and the Exxon Equity Butane measured at Plant Butane Meter #4
during  such  period.  Expressed  as  a  formula:  Maximum  Delivery  Volume  =
Ella-Brownsville  Pipeline  Capacity  -  (Exxon  Equity  Propane  + Exxon Equity
Butane).

"MB"  shall  mean  one  million  Barrels.

                                        4

"METER"  shall  mean,  as  applicable, any one or a combination of the following
meters,  each  of  which  is  more  particularly  defined  in this Agreement and
identified  on  Exhibit  "C"  by  the  corresponding  meter  number:

     Plant  Propane  Meter  #1
     CCPL  Propane  Meter  #2
     Ella-Seadrift  Propane  Meter  #3
     Plant  Butane  Meter  #4
     Ella-Seadrift  Propane  Meter  #5
     Dean  Propane  Meter  #6

"MINIMUM  DELIVERY  VOLUME"  shall  have  the  meaning set forth in Section 4.5.

"MINIMUM  PURCHASE  VOLUME"  shall  have  the  meaning set forth in Section 5.2.

"MIX" shall mean a blend of approximately _________ propane and _________ butane
meeting  the  quality  specifications  set forth in Exhibit "A".  The term "Mix"
includes  Exxon  Equity  Propane,  Exxon  Equity  Butane,  and  POC  Propane.

"MT.  BELVIEU"  shall  mean  that  industry  natural  gas liquids fractionation,
storage  and distribution area located on the Barbers Hill salt dome in Chambers
County,  Texas,  and  commonly  referred  to  in  the industry as "Mt. Belvieu".

"MT.  BELVIEU  PRICE  DIFFERENTIAL"  shall  mean  the  amount  by  which (a) the
Matamoros Average Mix Price exceeds (b) the composite of the Propane Index Price
and  the  Butane  Index  Price  included  in  a mix of ________% propane/butane.
Expressed  as a formula:  Mt. Belvieu Price Differential = Matamoros Average Mix
Price  -  [(Propane  Index  Price  x  ___)  +  (Butane  Index  Price  x  ___)].

"OPIS"  shall  mean  Oil  Price  Information  Service.

"PARTY"  shall  mean  either  Exxon  or  POC.

"PARTIES"  shall  mean  collectively,  Exxon  and  POC.

"PIPELINE  DELIVERY FEE" shall mean the fee which POC shall pay to Exxon for the
transportation  of  POC  Propane  on  the  CCPL from the Receipt Point(s) to the
Plant.  The  Pipeline  Delivery Fee shall be calculated pursuant to Section 6.5.

"PLANT"  or "KING RANCH GAS PLANT" shall mean the King Ranch gas plant currently
owned  by  Exxon  and  located  in  Kleburg  County,  Texas.

"PLANT  BUTANE  METER #4" shall mean the meter identified as Meter #4 on Exhibit
"C"  which  measures  the  volume  of  Exxon Equity Butane included in the Exxon
Equity  Product."

                                        5

PLANT  PROPANE  METER #1" shall mean the meter identified as Meter #1 on Exhibit
"C"  which  measures a portion of the volume of Exxon Equity Propane included in
the  Exxon  Equity  Product.

"POC  PROPANE"  shall  mean  the  total  volume  of propane delivered by POC and
received  by  Exxon at the Plant as measured at CCPL Propane Meter #2 and, on an
emergency  basis,  at  Ella-Seadrift  Meter  #3.

"PRODUCT  FEE"  shall  mean  the  fee which POC shall pay to Exxon for the Exxon
Equity  Product  delivered,  as  calculated  pursuant  to  Section  6.2.

"PRODUCT  PRICE"  shall  mean  the price on which the Product Fee is calculated.
The  "Product  Price"  shall  be based on the Propane Index Price and the Butane
Index  Price,  subject to decreases for discounts pursuant to Section 6.2(a) and
increases  for  premiums  pursuant  to  Section  6.2(b).  The "Product Price" is
subject  to  a  one-time  redetermination  pursuant  to  Section  6.3.

"PROPANE  INDEX  PRICE"  shall  mean  the  propane  price  determined monthly by
calculating  the  simple arithmetic average of the non-TET propane price for Mt.
Belvieu for all days prices are published by OPIS during the applicable Delivery
Month.

"PUMPING  AND  BLENDING FEE" shall mean the fee which POC shall pay to Exxon for
the  pumping  and  blending  services  provided pursuant to this Agreement.  The
Pumping  and  Blending  Fee  shall  be  calculated  pursuant  to  Section  6.6.

"PUMPING  AND  BLENDING  DEFICIENCY  FEE"  shall  have  the meaning set forth in
Section  6.7.

"PUMPING  AND  BLENDING  MINIMUM  VOLUME"  shall  have  the meaning set forth in
Section  4.2.

"PURCHASE  DEFICIENCY  FEE"  shall  have  the  meaning set forth in Section 6.9.

"PSIG"  shall  mean  pounds  per  square  inch,  gauge.

"RECEIPT  POINT(S)"  shall  mean  the custody transfer meter or meters generally
located  near EPC's Viola Pump Station in Nueces County, Texas for each supplier
with  which  POC  contracts  to purchase propane for shipment in the CCPL, which
meters  are  owned  or  operated,  or  both,  by  POC  or  its  suppliers.

"TERM"  shall  have  the  meaning  set  forth  in  Section  2.1.

                                    ARTICLE 2
                                      Term
                                      ----

     2.1     Term     The  initial  term of this Agreement shall commence on the
             ----
Effective  Date  and  shall continue through September 30, 2009.  This Agreement
shall  thereafter automatically be renewed on a year-to-year basis until written
notice of termination is given by either Party at least twelve (12) months prior
to the end of the initial term or any subsequent renewal term.  The initial term
of  this  Agreement,  as  renewed from time to time, shall be referred to as the
"TERM".

                                        6

     2.2     Termination     POC  agrees  that  Exxon is not required to operate
             -----------
the  Plant solely for the purpose of blending or delivering Mix.  If at any time
during  the  Term  Exxon  elects not to continue operations of the Plant for any
reason,  including  without  limitation  a  determination,  in  Exxon's  sole
discretion,  that operation of the Plant has become uneconomical, then Exxon may
terminate  this  Agreement  effective on the date the Plant ceases operations by
providing  written  notice to POC at least six (6) months in advance.  If, prior
to  the time Exxon is required to give such notice, Exxon determines that it may
cease  operations of the Plant, Exxon will make a good faith attempt to verbally
advise  POC  of  such  determination.

                                    ARTICLE 3
                              Conditions Precedent
                              --------------------

3.1     Conditions  Precedent to Exxon's Obligations          The obligations of
        --------------------------------------------
Exxon  to  provide  or arrange for transportation, pumping and blending services
under  this  Agreement  are  expressly  made subject to the following conditions
precedent:

     (a)     Corpus  Christi  Pipeline     Exxon  shall  contract  with  EPC  to
             -------------------------
recommission the idle CCPL for propane delivery service with a minimum operating
capacity  of  _____________________ Barrels per day (_____bd).  Exxon's contract
with  EPC  shall  include a provision that EPC will file a bi-directional tariff
between the Plant and Corpus Christi of ___________ ($_____) per Barrel.  If for
any  reason (i) the EPC Tariff is not approved for ______________ ($ ______) and
if  the  Parties are unable to agree upon another mutually acceptable amount for
the  EPC  Tarriff, (ii) EPC is unable to obtain rights-of-way or permits for the
CCPL,  or (iii) the hydrotest of the CCPL indicates that EPC will not be able to
recommission  such  line  at  a  total  cost  of  ___________________  dollars
($______________)  or  less,  Exxon  shall  have  the  right  to  terminate  the
provisions  of  Article  4  of  this Agreement upon giving POC written notice of
termination,  in which event POC's corresponding obligations to pay the Pipeline
Delivery  Fee under Section 6.5, the Pumping and Blending Fee under Section 6.6,
the  Pumping  and  Blending  Deficiency  Fee under Section 6.7, and the Delivery
Deficiency Fee under Section 6.8 shall also be terminated.  The remainder of the
Agreement  shall  continue  in  full  force  and  effect.

     (b)     Plant  Shipping  Station Modifications          Exxon shall, at its
             --------------------------------------
sole  cost  and  expense,  install additional facilities and/or equipment at the
Plant  sufficient  to  give  the  Plant  the  capacity  to  (i)  receive  up  to
______________Barrels  per day (____bd) of propane from the CCPL, (ii) blend POC
Propane,  Exxon  Equity  Propane,  and  Exxon  Equity Butane into Mix, and (iii)
deliver  a  minimum  of _________________Barrels per day (___bd) of Mix into the
Ella-Brownsville Pipeline at a pressure not to exceed one thousand seven hundred
fifty  (1750)  Psig.

     (c)     Extension  of  Time  Timing for recommisioning  the idle CCPL under
             -------------------
Section  3.1(a)  and  for  modifications  of  the  Plant under Section 3.1(b) is
targeted for October 1, 1999, however, such date may be extended if any delay is
a  result  of  delayed  right-of-way  acquisition or other matters which are not
reasonably within the control of Exxon or EPC or if otherwise mutually agreed by
the  Parties.   If  the  recommissioning of the CCPL and the Plant modifications
are  not  completed  and operational by October 1, 1999, then the obligations of
the  Parties  under Article 4 (and POC's corresponding payment obligations under
Sections  6.5,  6.6,  6.7 and 6.8) shall be suspended until the Day on which the
CCPL  and  Plant  modification  work  is  completed  and  operational.  No  such
extension  shall  suspend or otherwise affect any obligations under Article 5 or
any  other  provision  of  this  Agreement.

                                        7

                                    ARTICLE 4
                Pumping, Blending and Pipeline Delivery Services
                ------------------------------------------------

4.1     Pumping  and  Blending  Services
        --------------------------------

The  Parties acknowledge that as part of its normal Plant operations, Exxon will
produce  Exxon  Equity  Propane  and Exxon Equity Butane, which products will be
used in the process of blending Mix.  POC shall acquire and deliver to Exxon POC
Propane  in  accordance  with Section 4.3 below.  Exxon shall provide sufficient
Exxon  Equity  Butane  at the Plant to convert the POC Propane received from the
CCPL  and  the  Ella-Seadrift Pipeline to Mix specifications.  Exxon shall blend
Exxon Equity Propane and POC Propane, as applicable, with Exxon Equity Butane at
the  Plant  into  Mix in accordance with the specifications set forth in Exhibit
"A"  and  shall  pump  such  Mix  into  the Ella-Brownsville Pipeline; provided,
however, Exxon shall not be obligated to deliver Mix at a rate or pressure which
would  result in deliveries at either a pressure in excess of one thousand seven
hundred  fifty (1750) Psig or at a rate in excess of _______________ Barrels per
day  (____bd).  It is understood and agreed that Exxon Equity Propane shall have
first  priority  over  POC Propane for blending and that Exxon shall utilize all
Exxon  Equity  Propane  before  accepting  POC  Propane  for  blending.

4.2     Pumping  and  Blending  Minimum  Volume     During  each  of the periods
        ---------------------------------------
designated  below,  POC agrees to deliver for blending and pumping by Exxon, and
Exxon  agrees  to  receive and to provide the blending and pumping services for,
the  following  minimum  total  volumes  of  POC  Propane ("PUMPING AND BLENDING
MINIMUM  VOLUME"):

     (a)     During the Calendar Year 2000, _________________ Barrels (______b);
and

     (b)     During the Calendar Year 2001 and during each Calendar Year through
the remainder of the Term, ________________ Barrels (____ Mb) per Calendar Year.

If  the  Term  expires  or  is  terminated on a Day other than the last Day of a
Calendar  Year,  the  Pumping and Blending Minimum Volume shall be prorated on a
twelve  (12)  month  basis.  If  POC  fails  to deliver the Pumping and Blending
Minimum  Volume  for  any  applicable  period,  then  POC shall pay to Exxon the
Pumping  and  Blending  Deficiency  Fee  in  accordance  with  Section  6.7.

4.3     POC  Propane  Receipts     POC shall contract with third party suppliers
        ----------------------
in  the  Corpus Christi area to purchase propane from time to time in sufficient
quantities  to  enable POC to meet its Minimum Delivery Volume obligations under
Section  4.5.  The  maximum  volume  of  POC Propane which Exxon is obligated to
receive  from  time to time during the Term shall be ninety percent (90%) of the
Maximum Delivery Volume.  The Parties acknowledge that the volume of POC Propane
accepted  by  Exxon  will  vary periodically based on the amount of Exxon Equity
Propane produced at the Plant.  Exxon will provide to POC on or before the fifth
(5th)  Business  Day  before  each  Delivery  Month  its monthly projections for

                                        8

production  rates  of Exxon Equity Propane and Exxon Equity Butane.  The monthly
projections  are  only  intended to reflect expected operations at the Plant and
shall not be construed as binding upon the Parties.  The Parties will, from time
to  time,  agree upon mutually acceptable operating procedures for communicating
any  routine  or emergency changes in or variations from these projected monthly
propane  and  butane  production  rates.

4.4     Pipeline  Delivery Services     Exxon, under separate contract with EPC,
        ---------------------------
shall  arrange for receipt and transportation of up to _____________ Barrels per
day (___bd) of POC Propane into the CCPL.  Exxon shall pay to EPC the applicable
EPC Tariff for the volumes of POC Propane transported on the CCPL, and POC shall
pay to Exxon the applicable Pipeline Delivery Fee.  POC agrees to deliver to EPC
the  POC Propane at the Receipt Point(s), and upon each delivery, POC represents
and  warrants  to  Exxon  and  EPC  that (a) POC owns or controls the propane so
delivered  or  otherwise  has  the right to deliver the propane for shipment and
blending,  and  (b)  the  propane  so  delivered  is  in  compliance  with  the
specifications  set  forth  in the EPC Tariff.  Custody of the POC Propane shall
transfer  to  EPC  at  the Receipt Point(s); however, title and risk of loss and
damage  to  the  POC Propane shall remain with POC.  POC hereby agrees to comply
with  all  of  the terms and provisions of any EPC Tariff in effect from time to
time  during  the  Term.

4.5     Minimum Delivery Volume     During each of the periods designated below,
        -----------------------
POC agrees to deliver for transport on the CCPL, and Exxon agrees to arrange for
the receipt and transport of, the following minimum total volumes of POC Propane
("MINIMUM  DELIVERY  VOLUME"):

     (a)     During  the  fourth  quarter  of  1999,  `a  total  volume  of
_______________  Barrels  (____b);

(b)     During  the  Calendar Year 2000, _____________________ Barrels (______b)
at  the  following  quarterly  rates:  during  the  first  quarter,
______________________  Barrels  (____b);  during  the  second  quarter,
_____________________  Barrels  (_____b);  during  the  third  quarter,
_________________  Barrels  (_____b);  and  during  the  fourth  quarter,
________________  Barrels  (_____b);  and

(c)     During  the Calendar Years 2001 through 2004, __________________ Barrels
(_____b)  per  Calendar  Year.

If  the  Term  expires  or  is  terminated on a Day other than the last Day of a
Calendar  Year,  the  Minimum Delivery Volume shall be prorated on a twelve (12)
month  basis.  If  POC  fails  to  deliver  the  Minimum Delivery Volume for any
applicable  period,  then  POC shall pay to Exxon the Delivery Deficiency Fee in
accordance  with  Section  6.8.

4.6     Minimum  Volume  Credits
        ------------------------

     (a)     Minimum  Delivery Volume     Any volume of POC Propane delivered in
             ------------------------
excess  of  the Minimum Delivery Volume for a particular period shall be carried
forward  as a credit towards the Minimum Delivery Volume for the next succeeding
period.  If POC makes POC Propane available at the Receipt Point(s) and Exxon or
EPC  limits  propane  receipts from POC in accordance with Section 4.8, then the
total volume so limited shall be credited to POC's Minimum Delivery Volume as if
the  propane  volume  had  actually  been  transported.  In addition, if for any

                                        9

reason  the  Maximum  Delivery Volume calculated for a particular period is less
than  the  Minimum  Delivery  Volume for the corresponding period, then a volume
equal  to  the  positive difference, if any, between the Minimum Delivery Volume
and  the  Maximum  Delivery  Volume  shall be credited to POC's Minimum Delivery
Volume  for  such period as if the propane volume had actually been transported.

(b)     Pumping  and  Blending  Minimum  Volume     Any  volume  of  POC Propane
        ---------------------------------------
delivered  in excess of the Pumping and Blending Minimum Volume for a particular
period  shall  be  carried  forward as a credit towards the Pumping and Blending
Minimum  Volume  for  the  next  succeeding  period.  If  POC  makes POC Propane
available  at the Receipt Point(s) and Exxon or EPC limits propane receipts from
POC  in  accordance  with Section 4.8, then the total volume so limited shall be
credited  to  POC's Pumping and Blending Minimum Volume as if the propane volume
had  actually  been  transported.  In addition, if for any reason ninety percent
(90%)  of the Maximum Delivery Volume calculated for a particular period is less
than  the Pumping and Blending Minimum Volume for the corresponding period, then
a  volume  equal  to  the  positive  difference, if any, between the Pumping and
Blending  Minimum Volume and ninety percent (90%) of the Maximum Delivery Volume
shall  be  credited to POC's Pumping and Blending Minimum Volume for such period
as  if  the  propane  volume  had  actually  been  transported.

4.7     Third  Party Suppliers          Either POC or its third party suppliers,
        ----------------------
at  no cost to Exxon or EPC, shall provide the necessary connections to the CCPL
in  a  manner  acceptable to and approved by EPC, and shall provide metering and
delivery  pressure  necessary  to  deliver propane to the Plant at a pressure of
five  hundred  (500)  Psig.  Exxon  or  EPC shall provide CCPL Propane Meter #2,
which  meter  will  be  used  for  measurement  and  calculation of the Pipeline
Delivery  Fee  and  the  Pumping  and  Blending  Fee (for the portion of the POC
Propane  received  from  the  CCPL).  On an emergency basis, POC may deliver POC
Propane  to  Exxon on the Ella-Seadrift Pipeline.  Any such emergency deliveries
shall  be  made  at  a  minimum  pressure of five hundred (500) Psig.  POC shall
advise  the  Plant's  foreman  for  product  receipts  by telephone prior to any
emergency deliveries.  Exxon shall provide Ella-Seadrift Propane Meter #3, which
meter  will  be used for measurement and calculation of the Pumping and Blending
Fee for the portion of the POC Propane received from the Ella-Seadrift Pipeline.
Both CCPL Propane Meter #2 and Ella-Seadrift Propane Meter #3 may be used by POC
as  check meters for its third party propane receipts.  POC shall be responsible
for  resolving  any  metering  disputes  and any product quality issues with its
third  party suppliers on propane volumes delivered to the Plant on the CCPL and
the  Ella-Seadrift  Pipeline.  Any  allocations  of receipts from such suppliers
shall  be  the  sole  responsibility  of  POC.

4.8     Exxon's  Reservation     Exxon  expressly  reserves the right to utilize
        --------------------
its  contracted  capacity  on  the CCPL to transport Exxon Equity Propane on the
CCPL  from  the  Plant to Corpus Christi to respond to emergency Plant operating
requirements  which  may  result  from  the  loss  of other pipeline outlets for
propane,  or from any other event which may limit Exxon's ability to deliver the
Plant's  full  Exxon  Equity Propane or Exxon Equity Product production from the
Plant.  Exxon  shall advise POC as soon as reasonably possible of the occurrence
of  any  such events.  Exxon shall have no liability whatsoever to POC or to any
third  party  for  the exercise of the rights expressly reserved in this Section
4.8.

                                       10

                                    ARTICLE 5
                            Purchase and Sale of Mix
                            ------------------------

5.1     Product  and  Quantity          Subject  to  the limitations and further
        ----------------------
obligations set forth in this Article 5, Exxon agrees to sell and deliver to POC
and  POC  agrees  to  purchase  and receive from Exxon, ________ volume of Exxon
Equity  Product  produced  at the Plant which Exxon has the right to sell at any
given  time  during  the Term up to a maximum volume of ____________ Barrels per
day  (____bd).  Exxon  will communicate to POC by telephone with as much advance
notice  as  is  reasonably  practical  of  any changes in projected Exxon Equity
Propane  and  Exxon  Equity  Butane production rates.  Exxon is not obligated to
sell  or  deliver  a  volume  of  Exxon Equity Product that exceeds ____________
(____%) of its owned and/or controlled share of Exxon Equity Product produced at
the  Plant;  and POC is not obligated to purchase Exxon Equity Product in excess
of its Mix sales into Mexico, except as expressly provided in Section 5.2 below.
Under  no  circumstances  shall  Exxon's  obligations  under  this  Agreement be
construed  as  requiring Exxon to purchase or acquire any propane or butane from
any  third  party  source.

5.2     POC  Minimum Purchase Obligation          For each Delivery Month during
        --------------------------------
the  Term,  POC  agrees  to  purchase  and receive, or pay for, if available for
delivery  to  POC  but  not  taken,  a daily volume of Exxon Equity Product (the
"MINIMUM  PURCHASE  VOLUME")  in  an  amount  equal  to  the  lesser  of  (a)
_______________  Barrels  per day (___bd) or (b) ____________ (____%) of Exxon's
owned  and/or  controlled  share of Exxon Equity Product (expressed in Barrels).
POC  will  communicate by telephone to the Plant's foreman for product shipments
each  morning  any  routine  or  emergency  variations  from  its normal receipt
schedules  at  the Delivery Point.  If for any reason POC cannot accept delivery
of  the  Minimum  Purchase  Volume  at the Delivery Point, POC may elect to make
alternate  arrangements for receipt of the Exxon Equity Propane purchased by POC
at  the  Alternate  Delivery  Point(s).  Any  volume  of  Exxon  Equity  Propane
purchased  by  POC  and  received  at  the  Alternate Delivery Point(s) shall be
credited  towards  the  Minimum  Purchase Volume.  POC shall promptly advise the
Plant's  foreman  for  product  shipments by telephone and in writing (within 24
hours)  as  to  its election for use of the Alternate Delivery Point(s).  If POC
fails to so advise Exxon, Exxon shall have the right, but not the obligation, to
arrange  for  alternate  disposition  of the Exxon Equity Propane, and POC shall
reimburse  Exxon  for  all  costs  of  such disposition pursuant to Section 6.9.
Exxon  will use good faith efforts to minimize such alternate disposition costs.

5.3     Mix  Delivery;  Title
        ---------------------

     (a)     Delivery  Point          Exxon,  or Exxon's designee, shall deliver
             ---------------
the  Mix by pipeline at the Delivery Point.  Title to (other than POC Propane to
which  POC  retains  title), and risk of all loss of or damage to, the Mix shall
pass  to  POC  at the Delivery Point, at which time POC shall be deemed to be in
possession  and  control  of  such  Mix.  Deliveries  of  Mix shall be made at a
reasonably  constant  rate  and  at  a  pressure  sufficient  to  enter  the
Ella-Brownsville  Pipeline against the working pressure in the pipeline, as such
pressure  may  vary  from  time  to  time; provided, however, Exxon shall not be
obligated  to deliver Mix at a rate or pressure which would result in deliveries
at  a pressure in excess of one thousand seven hundred fifty (1750) Psig or at a
rate  in  excess  of  twenty  thousand  Barrels  per  day  (20kbd).

(b)     Alternate  Delivery  Point(s)     If  POC  elects  to  make  alternative
        -----------------------------
arrangements  for  disposition  of Exxon Equity Propane pursuant to Section 5.2,
Exxon,  or  Exxon's  designee,  shall  deliver  the  Exxon Equity Propane at the
applicable  Alternate  Delivery  Point(s).  Title  to and risk of all loss of or

                                       11

damage to the Exxon Equity Propane shall pass to POC at the applicable Meter, at
which  time  POC  shall  be deemed to be in possession and control of such Exxon
Equity  Propane.  Deliveries  of  Exxon  Equity  Propane  shall  be  made  at  a
reasonably  constant  rate  and at a pressure sufficient to enter the applicable
pipeline against the working pressure in the pipeline, as such pressure may vary
from  time  to  time; provided, however, Exxon shall not be obligated to deliver
Exxon  Equity Propane at a pressure in excess of one thousand one hundred (1100)
Psig.

5.4     Specifications          The  specifications of the Exxon Equity Propane,
        --------------
Exxon  Equity  Butane  and the Exxon Equity Product delivered and received shall
conform  with  the  specifications  set forth in Exhibit "A", as the same may be
amended from time to time by mutual agreement of the Parties or by change in Mix
specifications  implemented  by  any  applicable  regulatory  agency  in Mexico.
Provided,  however,  with  POC's  prior written consent, Exxon Equity Butane may
exceed  _________  (____%) (liquid volume) of the propane component of the Exxon
Equity  Mix  delivered.

5.5     Measurement  and  Sampling     Measurement,  testing,  sampling,  and
        --------------------------
analysis  of  the  Exxon Equity Propane and Exxon Equity Butane delivered to POC
shall  be  performed  in  accordance  with  Exhibit  "B".

5.6     Exxon  Warranty     Exxon  warrants  that  at  the time of delivery, the
        ---------------
Exxon Equity Propane and Exxon Equity Butane included in the Mix will conform to
the  specifications  set  forth in Exhibit "A" (as amended or varied pursuant to
Section  5.4).  Exxon  expressly  disclaims  any  warranty as to whether the POC
Propane  included in the Mix conforms to the specifications set forth in the EPC
Tariff  or in Exhibit "A" (as amended or varied pursuant to Section 5.4).  EXXON
MAKES  NO  OTHER  WARRANTIES  UNDER  THIS  AGREEMENT AND EXPRESSLY DISCLAIMS ANY
WARRANTY  OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO
THE  MIX  DELIVERED  UNDER  THIS  AGREEMENT.

                                    ARTICLE 6
                     Fees and Compensation; Deficiency Fees
                     --------------------------------------

6.1     Compensation          As  full  consideration  for  Exxon's  pumping,
        ------------
blending  and delivery services and the sale and delivery of Mix to POC pursuant
to  this  Agreement, POC shall pay to Exxon in accordance with the provisions of
this  Agreement,  the following:  (a) the Product Fee; (b) the Pipeline Delivery
Fee;  (c)  the Pumping and Blending Fee; (d) the Pumping and Blending Deficiency
Fee,  if applicable; (e) the Delivery Deficiency Fee, if applicable; and (f) the
Purchase  Deficiency  Fee,  if  applicable.

6.2     Product  Fee     For  the Exxon Equity Product delivered to POC pursuant
        ------------
to  this  Agreement,  POC shall pay to Exxon a Product Fee in an amount equal to
the  sum  of the following:  (a) the product of the total volume of Exxon Equity
Propane  (expressed  in  Gallons)  delivered  each Delivery Week (as measured at
Plant  Propane  Meter  #1  or  at Ella-Seadrift Propane Meter #5 or Dean Propane
Meter #6, or both, as applicable, if POC elects Alternate Delivery Point(s)) and

                                       12

the Propane Index Price, adjusted for discounts or premiums, as appropriate, and
(b)  the  product  of  the  total  volume  of  Exxon Equity Butane (expressed in
Gallons) delivered each Delivery Week (as measured at Plant Butane Meter #4) and
the  Butane  Index  Price,  adjusted  for discounts or premiums, as appropriate.

Expressed  as a formula:  Product Fee = (Exxon Equity Propane x adjusted Propane
Index  Price)  +  (Exxon  Equity  Butane  x  adjusted  Butane  Index  Price).

     (a)     Product  Price Discount     Price discounts shall be applied to the
             -----------------------
Propane Index Price and the Butane Index Price on Exxon Equity Propane and Exxon
Equity  Butane  delivered to POC at the Delivery Point (and Exxon Equity Propane
delivered  to the Alternate Delivery Point(s)) as follows: (i) During the period
commencing  on  the  Effective Date and ending September 30, 2000, a discount of
_______  ($ _____) per Gallon shall apply, (ii) after September 30, 2000 and for
the  remainder  of  the  Term,  ______discount  shall  apply.

     (b)     Product  Price Premium     POC has complete discretion with respect
             ----------------------
to  the  identity of its customers and the prices and terms under which it sells
Mix  to  Pemex  or  its  LPG resellers.  Provided, however, when the Mt. Belvieu
Price  Differential  equals  or  exceeds  _________ ($_____) per Gallon, a price
premium shall be added to the Propane Index Price and the Butane Index Price for
Exxon  Equity  Propane  and Exxon Equity Butane delivered to POC at the Delivery
Point  (and  to  Exxon  Equity  Propane  delivered  to  the  Alternate  Delivery
Point(s)).  The  amount  of  such  price  premium  shall  be  the  lesser of (i)
_________  ($_____)  per  Gallon,  or (ii) the amount of the positive difference
between  the  Mt.  Belvieu  Price  Differential  and  ____________ ($______) per
Gallon.  The  Product Price premium for each Calendar Year will be determined in
January  of  such  Calendar  Year  and  added  to the weekly Product Fee for the
Calendar  Year,  commencing on the first day of January in which such premium is
determined.

     (c)     Calculation  Adjustments     For purposes of determining the volume
             ------------------------
of  Exxon Equity Propane for calculating compensation, a volume of ethane not to
exceed  two  percent  (2%)  (liquid  volume)  of the propane shall be treated as
propane.  For  purposes  of  determining  the  volume of Exxon Equity Butane for
calculating  compensation,  heavier  hydrocarbon  components in the Exxon Equity
Butane  shall  be  treated  as  normal  butane.  Any of the following components
included in either Exxon Equity Butane or Exxon Equity Propane shall be excluded
from  the  volumes  for  calculating  compensation:  (i) ethane in excess of two
percent  (2%)  (liquid  volume) of the propane; (ii) carbon dioxide in excess of
one  half  percent  (0.5%)  of  the  ethane; (iii) methane; and (iv) other inert
contents.

     (d)     Provisional  Pricing     As  provided  in  Section 7.1, Exxon shall
             --------------------
invoice POC for Exxon Equity Product deliveries on a weekly basis.  For purposes
of  weekly  invoicing,  a provisional Butane Index Price and Propane Index Price
shall  be  developed for each Delivery Month by using the OPIS low non-TET price
for  propane and normal butane on the first Business Day of each Delivery Month.
At  the  end  of each Delivery Month, the actual pricing calculation provided in
the  definitions of "Butane Index Price" and "Propane Index Price" shall be used
to  adjust  the  Exxon  Equity  Product  pricing  for  the  Delivery  Month,  as
appropriate,  and  the  adjustment will be reflected in the next weekly invoice.

     (e)     OPIS  Changes          If  the  reference  prices  set forth in the
             -------------
definitions  of  "Butane  Index  Price" and "Propane Index Price" for any reason
cease  to  be  published  by OPIS or if OPIS is discontinued, then the successor
reference  prices  or  publication  accepted  by industry shall be used.  In the

                                       13

absence of a successor, POC and Exxon shall develop a mutually agreeable pricing
mechanism for propane and butane that enables calculation of an index price that
is  closely  comparable to that price index previously used.  If the Parties are
unable,  after  the  use  of  reasonable  efforts,  to  agree  upon  the pricing
mechanism, then the matter shall be submitted to binding arbitration pursuant to
Article  19.

6.3     Product  Price  Redetermination     If, on or after January 1, 2005, the
        -------------------------------
Mt.  Belvieu  Price  Differential  is  greater  than  or  less than ____________
($_____)  per  Gallon  by  more  than ________ ($______) per Gallon, then either
Party  may  request a redetermination of the Product Price by delivering written
notice to the other Party at any time after January 1, 2005 but prior to July 1,
2005.  Promptly  after  giving  such  notice,  the  Parties  shall  commence
negotiations  in  good faith towards agreement on a new Product Price.  The term
"good  faith"  shall  mean the honest statement of facts along with each Party's
bargaining position at that time, but in no event shall either Party be required
to  act in the best interest of the other Party.  The redetermined Product Price
shall  become  effective  as of January 1, 2005 and shall continue in effect for
the  balance  of  the Term.  If the Parties are unable to reach agreement within
ninety  (90)  Days  of  the  date  of  the  requesting Party's notice requesting
redetermination,  then  the  new  Product  Price  will  be  submitted to binding
arbitration  pursuant  to  Article  19.  The maximum increase or decrease in the
Product  Price  resulting  from the price redetermination shall be ______ ($____
per  Gallon.

6.4     Delivery of Information     POC shall provide to Exxon in writing, on or
        -----------------------
before  the  fifteenth  (15th)  of  January of each Calendar Year, documentation
evidencing  the average of all Matamoros-into-truck or tank-car wholesale prices
included  in  term  contracts  in  effect as of January 1 of such year, on which
contracts  the Matamoros Average Mix Price will be calculated.  Exxon shall have
the  right pursuant to Section 7.2 to audit all books and records of POC (or its
Affiliate, Penn Octane Mexico) relating to reseller Mix sales in order to verify
the  Mt.  Belvieu  Price  Differential.

6.5     Pipeline  Delivery  Fee     For the transportation services arranged for
        -----------------------
or  provided to POC by Exxon pursuant to this Agreement, POC shall pay to Exxon,
on  a weekly basis, a Pipeline Delivery Fee in an amount equal to the product of
(a)  the volume recorded on CCPL Propane Meter #2 each Delivery Week and (b) the
amount  of  the  cents per Barrel charge included in the EPC Tariff in effect at
the  applicable  time.  If  at  any  time  during the Term the amount of the EPC
Tariff  is  revised,  then  the  cents  per  Barrel charge on which the Pipeline
Delivery  Fee  is calculated will be increased or decreased accordingly.  If the
amount  of  the EPC Tariff exceeds _________ ($_____) per Barrel, then POC shall
have  the  right to terminate the provisions of Article 4 of this Agreement upon
giving  Exxon  written notice of termination, in which event POC's corresponding
obligations  to pay the Pipeline Delivery Fee under Section 6.5, the Pumping and
Blending  Fee  under  Section 6.6, the Pumping and Blending Deficiency Fee under
Section  6.7,  and  the  Delivery Deficiency Fee under Section 6.8 shall also be
terminated.  The  remainder  of  the  Agreement shall continue in full force and
effect.  Provided,  however,  if  Exxon  agrees  to absorb any amount of the EPC
Tariff in excess of ___________ ($_____) per Barrel, then POC shall not have the
right  to  terminate  pursuant  to  this  Section  6.5.
6.6     Pumping  and  Blending  Fee     For  the  pumping  and blending services
        ---------------------------
provided  pursuant to this Agreement, POC shall pay to Exxon, on a weekly basis,
a  Pumping and Blending Fee in an amount equal to the product of _______________
($  ______) per Barrel and one hundred ten percent (110%) of the volume recorded

                                       14

on  CCPL  Propane  Meter  #2 and Ella-Seadrift Propane Meter #3.  Expressed as a
formula:  Pumping  and Blending Fee = $______ X ((CCPL Propane Meter #2 volume +
Ella-Seadrift  Propane Meter #3 volume) x 1.1).  The ______ per Barrel charge on
which  the  Pumping  and  Blending  Fee is calculated may, by written notice, be
adjusted  either  upward  or  downward  annually  after Calendar Year 2000 by an
amount  no  greater than the amount by which the Gross Domestic Product Implicit
Price  Deflator,  as published by the Department of Commerce, Bureau of Economic
Analysis for the prior Calendar Year exceeds the Gross Domestic Product Implicit
Price  Deflator  for  2000.

6.7     Pumping  and Blending Deficiency Fee     Pursuant to Section 4.2, POC is
        ------------------------------------
obligated  to deliver to Exxon for pumping and blending the Pumping and Blending
Minimum  Volume.  If  POC  fails  to  deliver  to Exxon the Pumping and Blending
Minimum  Volume  of  POC  Propane  for any period designated in Section 4.2, POC
shall  pay  to  Exxon in a lump sum at the end of the Calendar Year in which the
designated  period  ends, a deficiency fee (the "PUMPING AND BLENDING DEFICIENCY
FEE")  calculated  as  follows:  the  deficit  volume  shall  be  determined  by
calculating the positive difference between (a) the Pumping and Blending Minimum
Volume  for  the designated period, and (b) the sum of the volume of POC Propane
recorded  on CCPL Propane Meter #2 and Ella-Seadrift Propane Meter #3 (expressed
in  Barrels)  during  the  applicable period (plus any applicable volume credits
pursuant  to Section 4.6(b)), which deficit volume amount shall be multiplied by
a  factor of 1.1.  Such product shall then be multiplied by the cents per Barrel
charge  used  in  calculating  the  Pumping  and  Blending  Fee in effect at the
applicable  time.  If at any time during an applicable period, Exxon determines,
in  Exxon's sole opinion based on actual monthly delivery volumes, that POC will
be unable to meet its Pumping and Blending Minimum Volume and, as a result, will
exceed  Exxon's  approved  credit  limits,  then  Exxon  shall have the right to
require  POC  to make weekly deficiency payments to stay within Exxon's approved
credit  limits.  At the end of each Calendar Year, an adjustment will be made to
reflect  the  actual  Pumping  and  Blending  Deficiency  Fee,  as  appropriate.

6.8     Delivery Deficiency Fee     Pursuant to Section 4.5, POC is obligated to
        -----------------------
deliver  for transport on the CCPL the Minimum Delivery Volume.  If POC fails to
deliver for transport on the CCPL its Minimum Delivery Volume of POC Propane for
any  period  designated  in Section 4.5, POC shall pay to Exxon in a lump sum at
the  end  of the Calendar Year in which the designated period ends, a deficiency
fee  (the  "DELIVERY DEFICIENCY FEE") calculated as follows:  the deficit volume
shall  be  determined by calculating positive difference between (a) the Minimum
Delivery  Volume  for  the designated period and (b) the volume recorded on CCPL
Propane  Meter  #2 (expressed in Barrels) during the applicable period (plus any
applicable  volume  credits  pursuant  to  Section 4.6(a)); such amount shall be
multiplied  by  the  cents  per  Barrel  charge used in calculating the Pipeline
Delivery  Fee.  If at any time during an applicable period, Exxon determines, in
Exxon's  sole opinion based on actual monthly delivery volumes, that POC will be
unable to meet its Minimum Delivery Volume and, as a result, will exceed Exxon's
approved  credit  limits, then Exxon shall have the right to require POC to make
weekly  deficiency  payments  to stay within Exxon's approved credit limits.  At
the  end of each Calendar Year, an adjustment will be made to reflect the actual
Delivery  Deficiency  Fee,  as  appropriate.

6.9     Purchase  Deficiency  Fee
        -------------------------

     (a)     Calculation     Pursuant  to  Section  5.2,  POC  is  obligated  to
             -----------
purchase  and  receive,  or  pay  for,  if  available for delivery to POC at the
Delivery Point or the Alternate Delivery Point(s), as applicable, but not taken,
the  Minimum  Purchase  Volume.  If  for  any  reason  POC fails to purchase and
receive,  if available for delivery to POC, the Minimum Purchase Volume required
for  each  Delivery  Month,  then,  POC  shall  pay  to Exxon at the end of each
Delivery  Month  a  deficiency fee (the "PURCHASE DEFICIENCY FEE") calculated as

                                       15

follows:  the  deficit  volume  shall  be determined by calculating the positive
difference  between  (a) the Minimum Purchase Volume for the Delivery Month, and
(b)  the  sum  of  the  volume  of  Exxon  Equity Product (expressed in Barrels)
actually  received  by  POC  at the Delivery Point (as measured at Plant Propane
Meter  #1  and  Plant  Butane  Meter  #4) and the volume of Exxon Equity Propane
(expressed  in  Barrels)  actually  received  by  POC  at the Alternate Delivery
Point(s)  (as  measured at Ella-Seadrift Propane Meter #5 and Dean Propane Meter
#6)  during  the Delivery Month.  Such deficit volume amount shall be multiplied
by  the  Product  Price  (including  any  applicable  discount  or  premium).

(b)     Alternate  Disposition  Costs     Notwithstanding  the  preceding
        -----------------------------
calculation,  if  Exxon  sells or otherwise disposes of the Exxon Equity Propane
        --
and  Exxon  Equity  Butane which would have been included as part of the deficit
volume,  then  the  Purchase Deficiency Fee shall be calculated as follows:  the
deficit  volume shall be determined as set forth in Section 6.9(a); such deficit
volume  shall  be  multiplied  by an amount equal to the positive difference, if
any,  between  the Product Price and the actual amount received by Exxon for the
sale  of  the  Exxon  Equity  Propane and Exxon Equity Butane.  In addition, POC
shall  reimburse  Exxon  all  costs  of  such  disposition,  including  without
limitation,  the  cost of transporting the Exxon Equity Propane and Butane to an
equivalent market.  Exxon will use good faith efforts to minimize such alternate
disposition  costs.

Example:
During a given Delivery Month, Exxon produces _________________ Barrels (_____b)
of  Exxon Equity Product, but POC receives only _______________ Barrels (____b).
As  a  result  of  POC's failure to accept delivery of the Exxon Equity Product,
Exxon  transports  ________________Barrels  (____b)  of Exxon Equity Propane and
Exxon Equity Butane to Corpus Christi at a cost of ______ ($____) per Gallon and
sells  the  Exxon  Equity  Propane  and Exxon Equity Butane at _____ ($____) per
Gallon  below  the Product Price.  POC would be required to pay Exxon a Purchase
Deficiency  Fee  in  the amount of _________________ ($_________), calculated as
follows:  (_______  Barrels  x  42  (to  convert  to  Gallons)  x  $____ (sum of
disposition  cost  and  price  difference)  =  $_________

                                    ARTICLE 7
                           Billing, Payment and Audit
                           --------------------------

7.1     Billing and Payment     Exxon shall render to POC the invoices set forth
        -------------------
in  this  Section  7.1.  The  supporting  data  and  calculations, including all
relevant  analysis,  computations, tickets and measurement data used by Exxon in
computing  the  amounts  set  forth in the invoices shall be submitted with each
invoice.

     (a)     Weekly  Invoices     At  the  end  of each Delivery Week during the
             ----------------
Term,  Exxon shall render to POC an invoice covering (i) the provisional Product
Price  for  Exxon  Equity  Propane  and Exxon Equity Butane delivered during the
Delivery  Week;  (ii)  the Pumping and Blending Fee for the Delivery Week, (iii)
the  Pipeline Delivery Fee for the Delivery Week; (iii) the Pumping and Blending

                                       16

Deficiency  Fee, if Exxon has elected to invoice weekly pursuant to Section 6.7;
and  (iv)  the  Delivery  Deficiency Fee, if Exxon has elected to invoice weekly
pursuant  to  Section  6.8.

(b)     Monthly  Invoices     At  the  beginning  of  each Delivery Month, Exxon
        -----------------
shall  render  to  POC an invoice covering (i) any applicable adjustments to the
Product  Price  for  the  preceding Delivery Month calculated in accordance with
Section 6.2(d); (ii) any applicable Purchase Deficiency Fee, (iii) any remaining
charges  for  the  Pumping  and  Blending Deficiency Fee; and (iv) any remaining
charges  for  the  Delivery  Deficiency  Fee.

     (c)     Annual Invoices     If Exxon has not elected to invoice the Pumping
             ---------------
and Blending Deficiency Fee or the Delivery Deficiency Fee on a weekly basis, or
if an adjustment of either such fee is appropriate, Exxon shall render to POC at
the  end  of  each  Calendar  Year  an invoice covering the Pumping and Blending
Deficiency  Fee,  or  the  Delivery  Deficiency  Fee,  or  the  adjustments,  as
appropriate.

If payment is made pursuant to a documentary letter of credit, invoices shall be
sent  to the issuing bank in accordance with the terms of such letter of credit.
Otherwise,  invoices and supporting data shall be sent to the following address:

                    PENN  OCTANE  CORPORATION
                    12118  South  Bloomfield
                    Santa  Fe  Springs,  CA  90670

If  payment is made pursuant to a documentary letter of credit, Exxon shall make
draws  in  accordance  with  the terms of such letter of credit.  Otherwise, POC
shall  pay  each  invoice  in  full within twelve (12) Days from receipt of such
invoice  and  supporting  data  POC  by  wire  transfer  to  Exxon  at:

                    Citibank,  N.A.,  New  York,  NY
                    ABA  0210-0008-9
                    For  credit  to  Exxon  Co.  U.S.A.
                    Account  No.  00034219

If  the  payment  due  date falls on a Sunday or Monday banking holiday, payment
will  be due on the next succeeding Business Day.  If the payment due date falls
on  a  Saturday  or bank holiday other than a Monday, payment will be due on the
first  preceding  Business  Day.

7.2     Audit     Each  Party and its duly authorized representatives shall have
        -----
the  right to witness custody transfer measurement procedures in accordance with
Exhibit  "B".  In  addition,  each Party and its duly authorized representatives
shall  have  access  to  the  accounting  and  measurement records and any other
documents maintained by the other Party or any of its Affiliates, subcontractors
or  agents  which  are  necessary  to  verify  the  accuracy  of  any billing or
transaction  under this Agreement.  Each Party shall have the right to audit, at
its own expense, such records at any reasonable time or times within twenty-four
(24)  months after the end of each Calendar Year during which the transaction in
question  occurred.  Each  Party  shall preserve and shall cause all Affiliates,
subcontractors  and  agents  to preserve all of the above referenced records and

                                       17

documents  for  the  same  period specified above.  Any costs (including but not
limited to, employee time, office space/overhead, photocopying, pulling records,
etc.)  incurred  by  the  audited  Party  during the audit shall be borne by the
audited  Party.  For  purposes  of  auditing the margins associated with the Mt.
Belvieu  Price  Differential in Section 6.4, POC shall cause its Affiliate, Penn
Octane  Mexico,  to  comply  with  the  terms  of  this  Section  7.2.

                                    ARTICLE 8
                         Representations and Warranties
                         ------------------------------

As  a  material inducement to entering into this Agreement, POC, with respect to
itself  and  its  Affiliates,  as  applicable, hereby represents and warrants to
Exxon  as  of  the  Effective  Date  as  follows:

     (a)     it  is  duly organized, validly existing and in good standing under
             the  laws of  the jurisdiction of its formation and is qualified to
             conduct its business  in those jurisdictions  necessary  to perform
             this  Agreement;

     (b)     it  (or  its  Affiliate,  Penn  Octane  Mexico)  has all regulatory
             authorizations,  permits  and  licenses necessary for it to legally
             perform its obligations  under  this  Agreement;

     (c)     the  execution,  delivery  and  performance  of  this Agreement are
             within  its powers, have  been  duly  authorized  by  all necessary
             action and do  not violate  any  of  the  terms  or  conditions  in
             its governing documents or any contract to which  it  is  a  party
             or any law, rule,  regulation, order, writ, judgment,  decree  or
             other  legal  or  regulatory  determination  applicable  to  it;

     (d)     there  are  no bankruptcy, insolvency, reorganization, receivership
             or  other arrangement proceedings  pending or being contemplated by
             it, or to its knowledge  threatened  against  it;

     (e)     there are no suits, proceedings, judgments, rulings or orders by or
             before  any court  or any governmental  authority  that  materially
             adversely  affect  its  ability  to  perform  this  Agreement;  and

     (f)     it  (or  its  Affiliate,  Penn  Octane Mexico) has obtained written
             purchase  commitments  to  purchase  the  Minimum  Purchase  Volume
             required to be  purchased by POC under Section 5.2 either (i) from
             Pemex for a minimum of twelve (12)  months from the Effective Date,
             or (ii) from  an  LPG  reseller  or  a  group of LPG  resellers  in
             Northeast  Mexico  for  a  minimum  of  five  (5)  years  from the
             Effective  Date.

                                       18

                                    ARTICLE 9
                       Credit and Financial Responsibility
                       -----------------------------------

9.1     Credit  Provisions     POC  shall provide to Exxon a letter of credit in
        ------------------
accordance  with the requirements set forth in Exhibit "D" to cover all of POC's
payment  obligations  set  forth  in  Article  6  of  this  Agreement.

9.2     Financial  Responsibility     If,  during  the  Term,  the  financial
        -------------------------
responsibility  of POC becomes impaired or unsatisfactory to Exxon, advance cash
payment  or  satisfactory security reasonably acceptable to Exxon shall be given
upon  demand;  and  performance  under this Agreement may be withheld until such
payment or security is received.  If this Agreement is assigned during the Term,
the  assignor  will  be required to provide sufficient financial information for
determination  of  financial  responsibility  of  the  assignee.

9.3     Setoff     For  the  purpose of this Section 9.3 only, the terms "Exxon"
        ------
and  "POC"  shall  each  include  their  respective subsidiaries and Affiliates.
Exxon  may setoff any amount owed to Exxon by POC against any amount owed to POC
by  Exxon,  whether  under  this Agreement or any other agreement or arrangement
between  or  among  any  of  them.  If  any  amount  owed  is  unliquidated  or
unascertainable,  Exxon may setoff an amount estimated by it in good faith to be
the  amount  owed.

                                   ARTICLE 10
                                      Taxes
                                      -----

Exxon  shall pay and/or be responsible for all taxes levied or assessed upon the
production,  severance  and  processing  of  the gas from which the Exxon Equity
Product  delivered to POC is extracted and upon the transportation or storage of
the  Exxon  Equity Product and any other taxes payable on or with respect to the
Exxon  Equity  Product  prior  to  its delivery to POC.  POC shall pay and/or be
responsible  for  payment  of  all taxes that may be levied or assessed upon the
purchase,  transportation,  storage or use of the POC Propane or the Mix and any
other  taxes  payable  on or with respect to the Mix after POC takes delivery at
the  Delivery  Point  or  the  Alternate  Delivery  Point(s).


                                   ARTICLE 11
                              Default and Remedies
                              --------------------

11.1     Event  of  Default     An  "Event  of Default" means, with respect to a
         ------------------
Party alleged to have taken or failed to have taken any of the actions set forth
below  in  this  Section  11.1  (the  "DEFAULTING  PARTY"):

     (a)     the  failure  by  POC to make, when due, any payment required under
             this Agreement  if  such  failure  is  not remedied within fifteen
             (15) Business Days after  written  notice  from  Exxon;  or

                                       19

     (b)     any  representation  or  warranty  made  by the Defaulting Party in
             this Agreement  proves  to have been false  or  misleading  in  any
             material respect when made  or  ceases  to  remain  true during the
             Term;  or

     (c)     the failure by the Defaulting Party to  perform  any  covenant  set
             forth in this Agreement, and such failure is not excused  by  force
             majeure or cured within fifteen (15)  Business  Days  after written
             notice  thereof  to  the Defaulting Party; or

     (d)     the  Defaulting  Party:

            (i)     makes  an  assignment  or  any  general arrangement  for the
                    benefit of creditors  (other  than  a collateral  assignment
                    of  this Agreement by POC as security);

           (ii)     files  a  petition  or otherwise  commences,  authorizes  or
                    acquiesces in the  commencement  of  a  proceeding  or cause
                    of action under  any  bankruptcy  or  similar  law  for  the
                    protection of  creditors, or has such petition filed against
                    it  and  such  petition  is  not  withdrawn or dismissed for
                    thirty (30)  days  after  such  filing;

          (iii)     otherwise becomes bankrupt or insolvent (however evidenced);
                    or

           (iv)     is  unable  to  pay  its  debts  as  they  fall  due;  or

     (e)     the  failure  of  POC  to  maintain  the  letter of credit required
             pursuant  to  Section  9.1.

11.2     Remedies  Upon  an  Event  of  Default          If  an Event of Default
         --------------------------------------
occurs  under this Agreement with respect to a Defaulting Party, the other Party
("NON-DEFAULTING  PARTY")  may terminate this Agreement by giving the Defaulting
Party  written  notice  of  termination.  Upon  the  occurrence  of any Event of
Default  listed  in Section 11.1(d) as it may apply to any Party, this Agreement
shall  automatically  terminate, without notice, and without any other action by
either Party.  In addition to the Non-Defaulting Party's right to terminate, the
Non-Defaulting  Party  may exercise any remedy available at law or in equity, or
both,  against  the  Defaulting  Party, subject, however, to the limitations set
forth  in  Section  14.2.  The  Parties acknowledge that it is their intent that
payment  of  the  Delivery  Deficiency  Fee, the Purchase Deficiency Fee, or the
Pumping  and  Blending Deficiency Fee is not intended to be the exclusive remedy
of  Exxon  for  failure  of  POC to perform its POC Propane delivery obligations
under  Article 4 nor its Exxon Equity Product purchase obligations under Article
5.

11.3.     Payment  Upon  Termination     Upon  termination  of  this  Agreement
          --------------------------
pursuant  to  Section 11.2, each Party shall pay the other Party all amounts due
under  this  Agreement,  as  applicable,  up  to  the  date  of  termination.

11.4     Attorney's  Fees     If  either  Party engages in legal proceedings for
         ----------------
the purposes of enforcing this Agreement or recovering damages due to the breach
of  this  Agreement by the other Party, the enforcing Party shall be entitled to
reimbursement  by  the other Party for costs, reasonable attorneys' fees and any
other  reasonable  expenses incurred in connection with those legal proceedings.

                                       20

                                   ARTICLE 12
                                 Force Majeure;
                                 --------------
                             Repair and Maintenance
                             ----------------------

12.1     Force  Majeure
         --------------

     (a)     Effect  of Force Majeure     If either Party is rendered unable, by
             ------------------------
reason  of  a  force  majeure  event,  to  carry  out,  in whole or in part, its
obligations under this Agreement, the Party claiming inability shall give notice
to  the other Party as soon as reasonably practical after the occurrence of that
event.  Such  notice  shall  be  confirmed  promptly  in  writing  giving  full
particulars,  and  effective upon the occurrence of the force majeure event, the
obligations  of such Party (other than any obligation to make a payment then due
or  becoming  due under this Agreement with respect to performance prior to such
event)  shall,  insofar  as  they  are  affected  by the force majeure event, be
suspended  during  the continuance of any inability so caused, but for no longer
period;  and  such  cause  shall,  as  far  as  possible,  be  remedied with all
reasonable  diligence.  Notice  of termination of force majeure conditions shall
be  given  in  writing  to  the  other  Party.

     (b)     Definition     As  used in this Agreement, the term "force majeure"
             ----------
shall mean an event which is beyond the reasonable control of the Party claiming
an  event of force majeure which reasonably could not have been prevented by the
exercise  of due diligence, including, without limitation:  acts of God, acts of
the  public  enemy;  wars;  blockades;  insurrections;  strikes,  lockouts,  or
industrial  disputes  or  disturbances; riots; disorders; epidemics; landslides;
lightning;  earthquakes;  hurricanes  or  threats  of hurricanes; fires; storms,
floods,  or  washouts;  arrests  and restraints; civil disturbances; explosions,
breakage  or  accident  to  machinery or lines of pipe located within the United
States;  freezing  of  wells  or lines of pipe located within the United States;
acts  of  governmental  authority;  embargoes;  failure  of  pipelines  or other
carriers located within the United States to transport or furnish facilities for
transportation;  changes  of rules and regulations with regard to transportation
by  common  or  jurisdictional  carriers  within  the  United  States; failures,
disruptions,  or  breakdowns  of  machinery  or  of  facilities  of  production,
manufacture,  transportation,  distribution  and  consumption located within the
United  States;  the  necessity  for  making  repairs, maintenance, alterations,
enlargements  or  connections to the Plant or any machinery, facilities or lines
of  pipe located within the United States.  It is understood and agreed that the
settlement of strikes or lockouts shall be entirely within the discretion of the
Party  having  the  difficulty  and  that  the  above requirement that any force
majeure  shall  be  remedied with all reasonable diligence shall not require the
settlement  of  strikes  or  lockouts by acceding to the demands of the opposing
Party  when  such  course is not advisable in the discretion of the Party having
the  difficulty.  The term "force majeure" does not include (i) economic events,
such  as  lack  of funds or changes in market conditions or prices, nor (ii) any
event  which  affects  machinery,  facilities or lines of pipe which are located
outside  of  the  United  States.

12.2     Repair  and  Maintenance     If  the  need  to  affect  major  repairs,
         ------------------------
maintenance,  or  alteration work arising from the normal operation of the Plant
or  any  other  facility  utilized  in connection with performing either Party's
obligations  under  this Agreement, whether or not as a result of force majeure,
makes  it  necessary  for  either  Party (or the designated operator of any such
facility,  as applicable) to shut down or seriously impede the operation of such
facility  on  a  temporary basis, such Party shall, when reasonably possible, so

                                       21

notify  the  other  Party  as  soon as reasonably practicable, so that the other
Party shall have the opportunity to minimize disruption to its operations.  With
respect  to  repairs,  maintenance  or alteration work to the Plant or any other
facility located within the United States, the obligations of the Parties (other
than  any  obligation  to  make  a  payment  then due or becoming due under this
Agreement  with respect to performance prior to such event) shall, to the extent
they  are  affected by the repairs, maintenance or alteration work, be suspended
during  the  continuance  of  such  repairs,  maintenance  or  alteration  work.

                                   ARTICLE 13
                                   Assignment
                                   ----------

This  Agreement  shall  be binding on and inure to the benefit of the successors
and  assigns  of the Parties; provided, however, that neither Party shall assign
this  Agreement  in  whole  or  in part without the prior written consent of the
other  Party,  which  consent  shall not be unreasonably withheld.  Either Party
shall  have  the  right  to  assign  this  Agreement to an Affiliate without the
consent  of the other Party.  Any such assignment shall not relieve the assignor
from  any  past  or  future  obligations  under this Agreement.  Nothing in this
Agreement  shall  in  any  way limit the right of Exxon to change or replace the
operator  of  the Plant or to sell its interest in the Plant; provided, however,
any  such  sale  shall  be  expressly  subject  to  this  Agreement.

                                   ARTICLE 14
                       Indemnity; Limitation of Liability
                       ----------------------------------

14.1     Indemnity     As  between  the  Parties, Exxon shall be deemed to be in
         ---------
control  and possession of the Mix deliverable hereunder and responsible for any
damages  or  injuries  caused  thereby  until the Mix is delivered to POC at the
Delivery  Point  (or  the  Exxon  Equity  Propane  is delivered at the Alternate
Delivery  Point(s), as applicable); and POC shall be deemed to be in control and
possession  of  the  Mix  delivered hereunder and responsible for any damages or
injuries  caused  thereby  from  and  after  the  Mix is delivered to POC at the
Delivery  Point  (or  the  Exxon  Equity  Propane  is delivered at the Alternate
Delivery  Point(s),  as applicable).  POC shall indemnify, defend and hold Exxon
harmless from and against all claims, suits, liability and expense on account of
injury  to  or  death of persons, harm to the environment, or damage to property
caused by or resulting from negligence or acts of willful misconduct on the part
of  POC,  its  employees,  agents  or  contractors  in  the  performance of this
Agreement except to the extent that such injury, death, harm or damage is caused
by negligence or acts of willful misconduct on the part of Exxon, its employees,
agents  or  contractors.  Exxon  shall  indemnify and hold POC harmless from and
against  all claims, suits, liability and expense on the account of injury to or
death  of  persons,  harm to the environment, or damage to property caused by or
resulting  from  negligence  or acts of willful misconduct on the part of Exxon,
its employees, agents or contractors in the performance of this Agreement except
to the extent that such injury, death, harm or damage is caused by negligence or
acts  of  willful  misconduct  on  the  part  POC,  its  employees,  agents  or
contractors.  Where  personal injury, death, harm to the environment, or loss or
damage  to property is the result of the joint acts or omissions of the Parties,
the  Parties  expressly  agree  to  indemnify  each other in proportion to their
respective  share  of  such  joint  acts  or  omissions.

                                       22

14.2     Limitation  of  Liability          NOTWITHSTANDING  ANYTHING  TO  THE
         -------------------------
CONTRARY  ELSEWHERE IN THIS AGREEMENT, EXCEPT AS EXPRESSLY SET FORTH IN SECTIONS
6.7, 6.8, AND 6.9, NEITHER PARTY SHALL BE LIABLE OR OTHERWISE RESPONSIBLE TO THE
OTHER  PARTY  FOR  ANY  EXEMPLARY, INDIRECT, CONSEQUENTIAL, PUNITIVE, OR SPECIAL
DAMAGES  OR  LOST  PROFITS  WHICH  IN  ANY  WAY  ARISE  OUT OF OR RELATE TO THIS
AGREEMENT  OR  THE  PERFORMANCE  OR  BREACH  THEREOF.

                                   ARTICLE 15
                                 Confidentiality
                                 ---------------

Each  Party  agrees not to disclose the terms of this Agreement to a third party
(other  than  the  Party's  or its Affiliates' employees, lenders, counselors or
accountants  who have agreed to keep such terms confidential) except in order to
comply  with  any  applicable law, order, regulation or exchange rule; provided,
each  Party  shall notify the other Party of any proceeding of which it is aware
which  may  result in disclosure.  The Parties shall be entitled to all remedies
available  at  law  or  in equity to enforce, or seek relief in connection with,
this  confidentiality obligation.  This Article 15 shall survive the termination
of  this  Agreement  for  a  period  of  two  (2)  years.

                                   ARTICLE 16
                      Use Of Trademark; Publicity Releases
                      ------------------------------------

POC  shall  not, without the prior written consent of Exxon, (a) use the name or
any  trade  name  or  registered  trademark  of  Exxon Corporation or any of its
divisions  or  Affiliates  in any advertising or communications to the public in
any  format;  or  (b)  make  publicity  releases or announcements regarding this
Agreement, or any activities related to this Agreement. As to publicity releases
or
announcements,  Exxon's  consent  shall  not  be unreasonably withheld.  POC has
advised Exxon that regulatory requirements for financial disclosure from the SEC
or  other  regulatory  agencies may exist, and Exxon agrees to take into account
such  requirements  in  determining  its  consent  in  a  timely  fashion.

                                   ARTICLE 17
                                     Notices
                                     -------

17.1     Notices     Notices  required  or  permitted  to  be  given  under this
         -------
Agreement  shall  be in writing and deemed to be properly given if (a) delivered
in  person,  (b)  deposited  in the United States mail, certified or registered,
return  receipt  requested  with  postage  prepaid, or (c) delivered by private,
prepaid courier with record of receipt and addressed to the appropriate Party at
the  addresses  set  forth  below:

     EXXON                                 POC
     -----                                 ---
     Exxon  Company,  U.S.A.               Penn  Octane  Corporation
     P. O.  Box  2180                      900  Veterans  Blvd.,  Suite  240
     Houston,  Texas    77252              Redwood  City,  CA    94063
     Attn:  NGL  Business                  Attn:  Jerry  Richter
            Development  Coordinator
     Phone: 713-656-4064                   Phone: 650-368-1501
     Fax:   713-656-6210                   Fax:   650-368-1505

                                       23

17.2.     Receipt  of  Notices     Notice delivered in person shall be effective
          --------------------
upon receipt.  Notice by certified or registered mail or courier shall be deemed
to have been received upon signature of the receiving Party.  A Party may change
its  address  by  providing  notice  of same in accordance with this Article 17.

                                   ARTICLE 18
                         Business Standards; Accuracy Of
                         -------------------------------
                          Records; and Legal Compliance
                          -----------------------------

18.1     Compliance  With  Laws  and  Regulations     Each  Party  shall  be
         ----------------------------------------
responsible  and  liable for and agrees to indemnify and hold harmless the other
         -
Party  against  all  costs,  expenses,  losses,  claims,  damages,  assessments
(including  without  limitation  professional  fees,  penalties,  and interest),
causes  of  action,  judgements,  fines,  settlements, penalties and liabilities
(joint  and  several),  without  regard to amount, arising out of, caused by, or
resulting  from  the  indemnifying Party's failure to comply with all applicable
federal,  state,  and  local  laws,  ordinances,  orders, rules and regulations.

18.2     Exporter  of Record     POC, or its Affiliate Penn Octane Mexico, shall
         -------------------
be  the  exporter  of record for pipeline or other deliveries into Mexico of Mix
purchased under this Agreement and agrees to fulfill all requirements applicable
to  the  exporter  of  record,  including but not limited to those of the United
States  or  Mexico customs and shall pay any applicable export duty or any other
applicable  fees  and  fines,  penalties  or  costs.

18.3     Business  Practices      Each  Party agrees (a) to comply with all laws
         -------------------
and  lawful  regulations applicable to any activities carried out in the name of
or  on  behalf  of the other Party under the provisions of this Agreement and/or
amendments  to  it;  (b)  that  all  financial settlements, billings and reports
rendered  to  the  other  Party  as  provided  for  in this Agreement and/or any
amendments to it will, to the best of its knowledge and belief, reflect properly
the facts about all activities and transactions related to this Agreement, which
data  may be relied upon as being complete and accurate in any further recording
and  reporting  made by such other Party for whatever purpose; and (c) to notify
the  other  Party  promptly  upon  discovery of any instance where the notifying
Party fails to comply with provision (a) above, or where the notifying Party has
reason  to believe data covered by (b) above is no longer accurate and complete.

18.4     Business  Standards     Each Party, in performing its obligations under
         -------------------
this  Agreement  shall  establish  and  maintain appropriate business standards,
procedures, and controls including those necessary to avoid any real or apparent
impropriety  or  adverse  impact  on  the  interests  of  the other Party or its
Affiliates.  Each  Party  shall  exercise  all  reasonable care and diligence to
prevent  any  actions  or  conditions  which could result in a conflict with the
other  Party's best interests.  This obligation shall apply to the activities of
employees,  agents  and  subcontractors  of  such  Party  and  its Affiliates in
relations  with  the  employees  of the other Party and their families, or third
parties  arising from this Agreement.  Such efforts include, but are not limited
to,  establishing precautions to prevent either party or its subcontractors from
making,  receiving,  providing,  or  offering any substantial gifts, extravagant
entertainment,  payments,  loans  or  other  considerations.

                                       24

                                   ARTICLE 19
                                   Arbitration
                                   -----------

If  arbitration  is  invoked  to  determine  the pricing mechanism to be used in
calculating  an  index  price  under  Section 6.2(e) or to determine the Product
Price  redetermination  under  Section 6.3, the arbitration will be conducted as
follows.  Prior  to  submission  of  the matter to arbitration, each Party shall
submit in writing to the other Party its final offer as to the issue in dispute:

     (a)     The  question  in  dispute  will  be  determined  through  binding
arbitration  before  one  (1)  arbitrator pursuant to the Commercial Arbitration
Rules  of  the  American  Arbitration  Association  ("AAA")  as modified by this
Agreement.  The  arbitration shall take place in Houston, Texas and shall follow
the  expedited  procedures  set forth in the rules provided that such procedures
shall be completed within ninety (90) days from the date arbitration is invoked.

     (b)     A  single  arbitrator  shall be appointed by mutual consent of both
Parties.  If  the  Parties,  however,  cannot  reach  agreement on an arbitrator
within  fifteen  (15)  days  of  submission  of  notice of arbitration, then the
Parties  shall  request  AAA  to  select  the  arbitrator  by  administrative
appointment.  The  arbitrator  shall  be  an individual who is not and never has
been an officer, director, or employee of either Party nor an employee of either
Party's  competitors  in  the  gas  industry, and who is qualified by education,
knowledge,  training,  and  experience to decide upon the particular question in
dispute.  Consultants,  contractors  and  expert  witnesses  previously  used by
either  Party  shall  not  be  used as an arbitrator without the consent of both
Parties.

     (c)     The  Federal Arbitration Act shall apply to the arbitration and the
arbitrator  shall  apply the substantive law of the State of Texas to the merits
of  the  case.  The arbitrator shall not resort to any conflict of law rule that
would  call  for  the  application  of  the  law  of  another  jurisdiction,

(d)     Each Party may submit evidentiary documents to the arbitrator in support
of  its  position.  The  arbitrator  may  request,  but  neither  Party shall be
compelled  to provide, any further evidentiary documents or information from the
Parties.  However,  the  arbitrator  may  ask  questions of the Party submitting
documents  as  they  relate  to  the  matter  in  dispute.

     (e)     Each  Party shall bear one half of the fees and expenses associated
with  the arbitration.  The arbitrator's decision is limited to selecting one or
the  other  of  the  final  written  offers  submitted by the Parties.  No other
pricing  mechanism  or redetermined price, as applicable, may or will be adopted
by  the  arbitrator.  However,  the  Parties  may  mutually  agree  to a pricing
mechanism  or  redetermined  price,  as  applicable,  at  any  time prior to the
conclusion of the arbitration.  Once the arbitration award is made, however, the
decision  of  the  arbitrator made in writing shall be final and binding on both
the  Parties,  and the Parties will abide by and comply with such decision.  The
decision  shall be enforceable in a court of competent jurisdiction which shall,
if  necessary,  enter  judgment  on  such  award or decision.  Neither Party may
contest,  attack  or  appeal  the  arbitration award or decision to any court or
administrative  agency.

                                       25

                                   ARTICLE 20
                                  Miscellaneous
                                  -------------

20.1     Conflict     In  the  event  of  a  conflict  between  the  terms  and
         --------
provisions  of  this  Agreement  and  any exhibit attached hereto, the terms and
provisions  of  the Agreement shall control.  In the event of a conflict between
the  language  of  a provision and either an example or a formulaic description,
the  language  of  the  provision  shall  control.

20.2     Entirety     This Agreement and the Exhibits attached hereto constitute
         --------
the entire agreement between the Parties.  There are no prior or contemporaneous
agreements or representations affecting the same subject matter other than those
herein  expressed.  No  amendment,  modification  or  change  herein  shall  be
enforceable  unless  reduced  to  writing  and  executed  by  both  Parties.

20.3     Law Governing Agreement     This Agreement and the rights and duties of
         -----------------------
the  Parties  shall  be  governed  by  and  construed, enforced and performed in
accordance  with  the  laws  of  the  State  of  Texas, without giving effect to
principles of conflicts of laws or choice of law rules. Notwithstanding anything
to  the  contrary,  this  Agreement shall not be interpreted or applied so as to
require  either  party  to  do  or  refrain  from  doing,  anything  which would
constitute  a  violation  of  any  laws  or  regulations.

20.4     Non-Waiver     No waiver by either Party of any one or more breaches or
         ----------
defaults  by  the  other  Party  in  the  performance of any of the covenants or
conditions  of  this  Agreement shall be construed as a waiver of any succeeding
default  or  defaults  whether  of  a  like  kind  or  different  nature.

20.5     Severability     In case any one or more of the provisions contained in
         ------------
this  Agreement  shall for any reason be held invalid, illegal, or unenforceable
in  any  respect, such invalid, illegal or unenforceable provision or provisions
shall  be  fully  severable  and  shall  not  affect any other provision of this
Agreement;  and  this  Agreement  shall  be  construed  and  enforced as if such
invalid,  illegal,  or  unenforceable provision had never been contained herein.

20.6.     Headings; Exhibits     The headings used for the sections and articles
          ------------------
in this Agreement are for convenience and reference purposes only and will in no
way  affect  the  meaning or interpretation of the provisions of this Agreement.
Any  and  all  Exhibits  referred  to  in this Agreement are, by such reference,
incorporated  herein  and  made  a  part  of  this  Agreement  for all purposes.

20.7     Survival     All  indemnity  and  audit  rights  shall  survive  the
         --------
termination of this Agreement.  All obligations provided in this Agreement shall
remain  in  effect  for  the  purpose  of  complying  herewith.

20.8     No  Third  Party  Beneficiaries          Nothing in this Agreement will
         -------------------------------
provide  any benefit to any third party or entitle any third party to any claim,
cause of action, remedy or right of any kind, it being the intent of the Parties
that  this  Agreement  shall  not  be  construed  as  a  third party beneficiary
contract.

                                       26

20.9     Status  of  the  Parties     Nothing  in  this  Agreement,  nor  in the
         ------------------------
relationship  between Exxon and POC and any Affiliate of either Exxon or POC, is
intended  to  create  nor  shall  be deemed to constitute a partnership or joint
venture  or  any  other  similar  relationship.

20.10     Counterparts     This  Agreement  shall  be  executed  in  duplicate
          ------------
originals,  with one original to be retained by POC and one original retained by
Exxon.  This  Agreement  may  be executed in several counterparts, each of which
shall  be  an  original and all of which constitute one and the same instrument.

20.11     Time  of  the Essence     Time is of the essence for all provisions of
          ---------------------
this  Agreement.

20.12     Construction  of  Agreement     Both  Parties  have contributed to the
          ---------------------------
drafting  of  this  Agreement.  Any  ambiguities or uncertainties in the wording
shall  not  be  construed  for  or  against  either  Party.


IN  WITNESS  WHEREOF,  the  Parties,  by  their  respective  duly  authorized
representatives,  have  executed  this  Agreement  effective as of the Effective
Date.  This  Agreement  shall not become effective as to either Party unless and
until  executed  by  both  Parties.


PENN  OCTANE  CORPORATION                EXXON  COMPANY,  U.S.A.
a  Delaware  corporation                 (a  division  of  Exxon  Corporation)

By:  __________________________          By:  ___________________________

Title:  _______________________          Title:  ________________________

Date  Signed:  ________________          Date  Signed  __________________


SCHEDULE  OF  EXHIBITS:
- ----------------------
Exhibit  "A"     Specifications
Exhibit  "B"     Measurement  and  Sampling
Exhibit  "C"     Diagram  of  Meters
Exhibit  "D"     Letter  of  Credit  Requirements

                                       27



                                            EXHIBIT "A"
                              TO PURCHASE, SALE AND SERVICE AGREEMENT
                                       FOR PROPANE/BUTANE MIX
                                        KING RANCH GAS PLANT

                                       PRODUCT SPECIFICATIONS

     ITEM                                        LIMIT                      METHOD
- ------------------------------------------------------------------------------------
                                  PROPANE        BUTANE     MIX(3)
                                  -------        ------     ------
Composition:  %LV
- -----------------
                                                             
  Propane - Min                     95             N.A.      ___          ASTM D2163

  Butane   - Min                    N.A.            95       ___1 & 2)    ASTM D2163

  Butane & heavier - max              3             --        --          ASTM D2163

  Pentane & heavier - max            --              5         5          ASTM D2163

  CO2                               0.1            0.1       0.1          ASTM D2163

  Ethane - max                      < 2            N.A.      N.A.         ASTM D2163

  Methane - max              1.5 % of ethane       N.A.      N.A.         ASTM D2163

Corrosion - copper strip - max      No.1           No.1     No.1          ASTM D1838

Total Sulfur - ppmw - max            123            140      140          ASTM D2784-89

Free water/moisture content         none           none     none

Vapor pressure @ 100 F - psia        208             70      185          ASTM D1267-89

<FN>

Notes: 1   The maximum butane in the MIX may be revised as a result of a change  in  specifications
           issued  by  a  regulatory  agency  of  the  Mexican  Government
       2.  Exxon may exceed ____ (___) volume % butane in the MIX with prior written consent of POC.
       3.  POC  will  be  responsible  for  monitoring  and correcting spec problems from off spec
           propane  delivered  to  the  Plant  from  CCPL.


                                       28

                                   EXHIBIT "B"
                     TO PURCHASE, SALE AND SERVICE AGREEMENT
                             FOR PROPANE/BUTANE MIX
                              KING RANCH GAS PLANT

                    NATURAL GAS LIQUID MEASUREMENT PROCEDURES
                         SECTION I - METERING EQUIPMENT

Products  delivered  or  received  per  this Agreement shall be measured by MASS
MEASUREMENT  PROCEDURES  using  a  turbine  meter.

Each  measuring  station  shall  be  equipped  with:  a flow computer capable of
totalizing  gross  volume,  net  volume  and  mass;  pressure  and  temperature
transmitters;  and a densitometer that measures density at flowing conditions in
gm/cc.  Exxon monitors compliance of Exxon produced/delivered propane and butane
using  on-line  chromatographs.

The  measuring  station  shall  be  installed  in  such  a manner that a minimum
back-pressure  of  50 psig above the product vapor pressure at maximum operating
temperature  is  maintained  at  all  times.  Measurement  accuracy shall not be
impeded  by  the  effects  of  pulsation  created  by  pumps  or  other sources.

All  equipment  employed  in  metering  and sampling shall be approved as to the
type, materials of` construction, method of installation, and maintenance by all
persons  involved  in the custody transfer of Products.  Due consideration shall
be  given  to  the  operating  pressure, temperature, and characteristics of the
product  being  measured.

TURBINE METERS shall be installed and operated in accordance with the API Manual
- --------------                                                        ----------
of  Petroleum  Measurement  Standards,  Chapter 5, Sections 3 & 4.  Each turbine
- -------------------------------------
meter shall be proved by a ball or piston-type prover in accordance with the API
                                                                             ---
Manual  of  Petroleum  Measurement  Standards,  Chapter  4.
- ---------------------------------------------

DENSITOMETERS shall be installed and proved in accordance with the API Manual of
- -------------                                                      -------------
Petroleum  Measurement  Standards,  Chapter  14,  Section  6.  Proving  is to be
- ---------------------------------
accomplished  by  entrapping a sample of the flowing stream at system conditions
in  a  high-pressure  vessel  known  as  a  pycnometer.

FLOW  COMPUTERS  shall  be  installed  capable  of  accepting turbine pulses and
- ---------------
signals  from  the pressure, temperature, and density densitometer transmitters.
The  computer  shall convert, as required, and totalize these signals into gross
volume, mass, and net volume.  For net volume determinations, the computer shall
utilize  the  latest  ASTM,  API,  and  GPA tables for temperature, pressure and
specific  gravity  correction that are applicable to the product being measured.

COMPOSITE  SAMPLING  SYSTEM,  if  used,  shall  be  operated  to  collect
- ---------------------------
flow-proportional  samples  only  when  there  is flow through the meter.  These
samples  shall  be  accumulated in and removed from single-piston cylinders with
mixing  capability.

Meters,  instruments,  and  check  meters shall be calibrated at least once each
Month.  Sufficient  notice  shall  be  given  to  all  parties  to  permit  a
representative  of  each  to  be  present.

Reference  to any API, GPA, ASTM, GPA, or similar publication shall be deemed to
encompass  the  latest  edition,  revision,  or  amendments  thereof.

                                       29

               SECTION II - ACCOUNTING AND MEASUREMENT PROCEDURES

I.     GENERAL

     A.     Exxon  shall  operate  and  maintain  custody/transfer  measurement
            facilities at  the  King Ranch Gas Plant for measurement of Products
            hereunder.

     B.     Persons  involved in the custody transfer of Products shall exchange
            measurement  data  during  the  Month  to facilitate  detection  and
            resolution of measurement  problems  in  a  timely  manner.

     C.     Persons  involved  in  the custody transfer of Raw Make and Finished
            Products  shall  notify  each  other  of modifications to their
            respective metering installations, maintain records of such changes,
            and make such records available to  each  other  upon  request.

II.     CUSTODY  TRANSFER  TICKETS

     A.     For streams which are measured on a MASS basis, custody tickets will
be  furnished  stating the total mass measured in pounds.  The equivalent volume
in  Barrels  of  liquid  Products  computed  at standard conditions will also be
furnished.  Custody  transfer  tickets  for  Products shall be generated on time
basis  per  the  Agreement  for  a  Month.

III.     MEASUREMENT  BASIS

     MASS  MEASUREMENT

     Mass  measurement procedures shall be employed on Products unless otherwise
provided  in  this  Agreement.

     Mass  Measurement  shall  be  accomplished  utilizing  a  turbine  meter,
densitometer, and flow computer to convert gross volumetrically measured Barrels
using  density  in gm/cc at flowing conditions to total pounds mass according to
the  following  formula:

     (Gross  Barrels)(Meter  Factor)(Density  at  Operating  Conditions  in
gm/cc)(350.506987)=Total  pounds  Mass  350.506987  is  the conversion factor to
convert  gm/cc  to  lbs/barrel.

     Total  pounds mass shall be converted to equivalent Gallons of each Product
utilizing  the  calculation  procedure outlined in GPA Standard 8173-83, and the
Product  weights  in  a vacuum in accordance to GPA Standard 2145-94.  Component
Gallons  will  be  further  reduced  to  Barrels.

IV.     PROVINGS  AND  TOLERANCES

     As  flow passes through the turbine meter blades, this causes the blades to
turn.  As each blade edge passes through the magnetic field of the pick-up coil,
a  pulse is generated.  The pulses then are converted to a square wave frequency
by the electronic module mounted on the turbine meter.  This frequency signal is
then  sent  to  the  flow  computer to establish flow rates.  Once the signal is
showing  flow,  there are two ways to show correct gross barrel flow.  Pulse per
barrel  and  a  meter  correction  factor are used to do this.  After a meter is
proved,  one  can  choose to adjust the factory set pulses per barrel which will
then  be  referred  to  as  a  "K"  Factor.  If  that choice is made, then meter
correction  factor  remains  at  1.0000.  If the adjustment is made at the meter
correction factor, then the pulses per barrel will remain set at standard pulses
per  barrel  for  that  particular  meter.

                                       30

     The  densitometer  factor  is  entered  into  the  flow computer to correct
flowing  density  in  gm/cc  as determined by results of a pychometer test.  The
pycnometer shall be installed so that flow through the vessel will assure proper
purging  thus  allowing  temperature  and  pressure  equalization  with  the
densitometer  being  proved.  Maximum allowable temperature differential between
the contents in the pycnometer and the densitometer shall be no greater than +/-
1.0  F.  The  pressure  shall  be  equal  to that of the densitometer at time of
removal.

A.     GENERAL

          1.     Meter  provings, calibration of instruments, and maintenance of
measurement  equipment  will  normally  be  performed by Operator personnel, but
these  functions  may  be delegated to responsible third-party contractors under
the  direction  of  an  Operator  representative.

          2.     At  least  twenty-four  notice  shall  be  given to all Persons
involved  in the custody transfer of Products to permit a representative of each
to  be  present  at  meter  provings  and  instrument  calibrations.

          3.     Persons  involved  in  the  custody  transfer of Products shall
cooperate  to  ensure  that  calibration/provings are scheduled and performed to
allow lockout of the flow computer, not to exceed one hour for each computer, to
avoid  metering  discrepancies  during  proving.

          4.     A  Person's  witness signature does not constitute the approval
of  the use of out-of-tolerance equipment, but said signature does attest to the
validity  of  the  proving  report.

     B.     PROVING  INTERVALS

          Each  meter  shall  be  proven  when  initially  placed  into service.
Subsequent provings shall be made on a monthly basis.  The meter shall be proven
immediately  after  any  meter  maintenance  is  performed.

     C.     METER  FACTOR

          1.  The  average of five (5) consecutive prover runs shall be taken to
establish  an  initial  or  new meter factor, provided that the five (5) proving
runs  are  within  0.0005 of each other and the meter factor is within 0.0025 of
the  previous  meter  factor  under  like  operating  conditions.

          2.     If  the  new  meter  factor  deviates less than 0.0025 from the
previous  meter  factor,  the  effective date for accounting with the new factor
will  be  the date of the proving and the new meter factor will remain effective
until  the  next  proving.  A  custody  transfer  ticket  should  be  written.

          3.     If the new meter factor deviates from the previous meter factor
under like operating conditions by more than plus or minus 0.0025, then one half
(1/2) of the volume measured since the previous proving shall be corrected using
the  new  meter  factor.  If  the  time  of  malfunction  can  be  determined by
historical  data,  then  the  volume  measured since that point in time shall be
corrected using the new meter factor.  The new meter factor shall not be used to
correct  volumes  measured  more  than  31  days  prior  to  the  new  proving.

          4.     No  work  shall  be  performed  on  the  measuring element of a
turbine  meter without first proving the meter.  If any work is performed, a new
meter  factor  shall  be  established.

                                       31

          5.     If the new meter factor deviates more than 0.0025 but less than
0.0050  from  the  previous  meter  factor,  the  field  representatives Persons
involved  in  the  custody  transfer  of Products shall determine the corrective
action  to  be  taken.

          6.     If  the  new  meter factor deviates 0.0050 or more, the element
shall be removed and inspected.  If there is build-up on the internals, then the
element  shall  be  cleaned and the meter reproved.  If excessive wear is found,
then  the  element  shall  be  repaired  or  replaced  and the meter reproved to
establish  a  new  initial  meter  factor.

          7.     The  measurement  technician  shall  record  all  required
corrections  to  measured  volumes  and  shall  describe the findings, method of
repair,  and  calculations  used  in  making the correction on the meter proving
report.  A  correction  ticket for the amount of the correction shall be issued.


     D.     DENSITY  FACTOR

          The proving intervals, repairs, and methods of correction are the same
as  outlined  in  paragraph  B  and  paragraph  C.2 to C.6.  A single pycnometer
proving  is  sufficient.

V.     CUSTODY  MEASUREMENT  STATION  FAILURE

     If  a failure occurs on a custody measurement station or the station is out
of  service  while  product  is  being  delivered,  then  the  quantity shall be
determined or estimated by one of the following methods in the order stated upon
mutual  agreement  of  the  Persons  involved  in  the  custody  transfer:

     1.     By  using  data  recorded  by any check measuring equipment that was
accurately  registering;  or

     2.     By  correcting  the error if the percentage error can be ascertained
by  calibrations,  tests,  or  mathematical  calculations;  or

     3.     By comparison with deliveries made under similar conditions when the
measurement  station  was  registering  accurately.

VI.  SAMPLING  PROCEDURES

     If  used, flow proportional composite samples of Products shall be analyzed
in  accordance  with  GPS  Standard  2177-89.

     A.     If  a  malfunction  of the sampling equipment occurs resulting in no
sample  being  taken  or  in  an  unrepresentative  sample  being  obtained, the
following  procedure  shall  be  utilized  in  the  order  stated:

          1.     The  sample  collected  by  an on-steam back-up sampling device
that has extracted a sample in proportion to the volume delivered shall be used;
or

          2.     An  average  of the composite samples taken over the last three
(3)  Months  of properly sampled deliveries or a daily grab sample shall be used
for  the  time  in  question.

                                       32

TECHNICAL  PUBLICATIONS

1.     Manual  of Petroleum Measurement Standards, American Petroleum Institute,
Washington  D.  C.,  First  Edition,  July  1976:

     (a)     Chaper  1,  "Definitions"
     (b)     Chapter  4,  "Proving  System"
     (c)     Chapter  5.3,  "Turbine  Meters"
     (d)     Chapter  5.4,  "Instruments  or  Accessory  Equipment  of  Liquid
             Hydrocarbon  Metering  Systems"
     (e)     Chapter  9.2,  "Pressure  Hydrometer  Test  Method  for  Density or
             Relative  Density"
     (f)     Chapter  12.2,  "Calculations  of  Petroleuym  Quantities"
     (g)     Chapter  14.6,  "Installation  and  Proving  Density Meters Used to
             Measure  Hydrocarbon Liquids with Densities between 0.3 and 0.7
             gm/cc at 15.56 C (60  F)  and  Saturation  Vapor  Pressure"

2.     GPA  Standard  2140-84  "Liquefied  Petroleum Gas Specifications and Test
Methods"

3.     GPA  Standard  2145-94  "Table  of  Physical  Constants  of  Paraffin
Hydrocarbons  and  Other  Components  of  Natural  Gas"

4.     GPA Standard 2174-83 "Method of Obtaining Hydrocarbon Fluid Samples Using
a  Floating  Piston  Cylinder"

5.     GPA Standard 2177-89 "Method for the analysis of Demethanized Hydrocarbon
Mistures  Containing  Nitrogen  and  Carbon  Dioxide  by  Gas  Chromatography"

6.     GPA  Standard  8173-83  "Method  for  Converting  Natural Gas Liquids and
Vapors  to  Equivalent  Liquid  Volumes"

7.     GPA  Standard  8182-82  "Tentative  Standard  for the Mass Measurement of
Natural  Gas  Liquids"

References to any API, GPA, or ASTM publication shall be deemed to encompass the
latest  edition,  revision  or  amendment,  thereof.

                                       33

                                   EXHIBIT "C"
                     TO PURCHASE, SALE AND SERVICE AGREEMENT
                             FOR PROPANE/BUTANE MIX
                              KING RANCH GAS PLANT

                     See attached Diagram of Meter Locations


                                       34


                                   EXHIBIT "D"
                     TO PURCHASE, SALE AND SERVICE AGREEMENT
                             FOR PROPANE/BUTANE MIX
                              KING RANCH GAS PLANT

                          LETTER OF CREDIT REQUIREMENTS
                          -----------------------------

As  required  under  Section  9.1, POC shall provide to Exxon a letter of credit
("LC")  to cover all of POC's payment obligations set forth in Article 6 of this
Agreement.  The LC shall be issued in a format, for an amount, by a bank and for
a  time  duration  acceptable  to  Exxon.  Credit balances shall be monitored by
Exxon,  and  amendments  to  the  LC  may  be required from time to time when it
appears  that  the  credit  balances may exceed current security levels.  Timely
receipt  by Exxon of acceptable security and amendments is a condition precedent
to  Exxon's  performance  under  this  Agreement  throughout  the  Term.

LC  Determination     A  calculation  of  the  amount of the LC for any Calendar
- -----------------
Month  will  be  made  on  or before the fifth (5th) Business Day preceding such
Calendar  Month  using  projected  volumes  and  prices  as  follows:

PRICE          Exxon will provide an estimate of the Propane Index Price and the
- -----
Butane  Index  Price  for  the  Calendar  Month  to  be  covered  by  the  LC.

VOLUME          POC  will  provide projections for Exxon Equity Product receipts
- ------
at  the  Delivery Point, Exxon Equity Propane receipts at the Alternate Delivery
Point(s)  and  POC  Propane  deliveries  across  CCPL  Propane  Meter  #2  and
Ella-Seadrift  Propane  Meter  #3  for  such Calendar Month.  Exxon will provide
Exxon  Equity  Propane  Plant  production projections for delivery to POC across
Plant  Propane  Meter  #1  for  such  Calendar  Month.

LC  CALCULATION          Exxon  will determine the amount of the LC requirements
- ---------------
for  the  Calendar  Month  to  be issued by calculating the sum of the following
items:

Item  1  -  Exxon  projected Exxon Equity Propane deliveries x estimated Propane
- -------
Index  Price  (adjusted  for  discounts  and/or  premiums)

Item  2 - (POC projected POC Propane deliveries across CCPL Propane Meter #2 and
- -------
Ella-Seadrift  Propane  Meter  #3  plus  Exxon  projected  Exxon  Equity Propane
deliveries)  x 0.1 x estimated Butane Index Price (adjusted for discounts and/or
premiums)

Item 3 - POC projected POC Propane deliveries across CCPL Propane Meter #2 x EPC
- ------
Tariff

Item  4 - (POC projected POC Propane deliveries across CCPL Propane Meter #2 and
- -------
Ella-Seadrift  Propane  Meter  #3)  x  1.1  x  Blending  and  Pumping  Fee

Item  5  -  Projected  Delivery  Deficiency  Fee  based  on  Item  3 projections
- -------

                                       35

Item  6  -  Projected  Purchase Deficiency Fee based on POC projections of Exxon
- -------
Equity  Product  receipts at the Delivery Point Exxon Equity Propane receipts at
the  Alternate  Delivery  Point(s)

          NOTE:   Items 5 and 6 will be adjusted for prior month's  credit.

Item  7  -  Projected  Pumping  &  Blending  Deficiency Fee based on Item 3
- -------
projections.

Item  8 - Any alternate disposition costs projected to be incurred by Exxon
- -------
pursuant  to  6.9.

Item  9  -  Any  residual  payment  obligations from the preceding Calendar
- -------
Month.

Any  balance  remaining  on  the  LC from the prior Calendar Month which remains
undrawn  shall  be  credited  towards  the  amount  of the LC for the succeeding
Calendar  Month.

Weekly  Update     Exxon  Treasurers Credit representative will calculate credit
- --------------
exposure,  based on actual activity and any adjustments to projections of volume
or  the  Propane  Index  Price  and Butane Index Price, and will communicate any
required  adjustments to the existing LC to POC either verbally or by facsimile.
Exxon  will have the right to restrict or interrupt Exxon Equity Product and Mix
deliveries  under  this  Agreement  until  an  adequate  LC  is

                                       36