SECOND AMENDED AND RESTATED
                               CUSTOMER AGREEMENT

                     SMITH BARNEY POTOMAC FUTURES FUND L.P.

     This Second Amended and Restated Customer  Agreement (this  "Agreement") is
made and entered  into as of the 1st day of April,  2001,  by and between  SMITH
BARNEY  POTOMAC  FUTURES  FUND  L.P.,  a  New  York  limited   partnership  (the
"Partnership"), and SALOMON SMITH BARNEY INC., a Delaware corporation ("SSB").

                              W I T N E S S E T H :
                               - - - - - - - - - -

     WHEREAS,  the Partnership has been organized under the laws of the State of
New York for the purpose of achieving  substantial capital  appreciation through
speculative  trading of  commodity  interests,  including,  but not  limited to,
futures contracts, options, spot and forward contracts; and

     WHEREAS,  Smith  Barney  Futures  Management  LLC  ("SBFM" or the  "General
Partner") has been elected  general  partner of the  Partnership  and SFG Global
Investments,  Inc.  ("SFG") has withdrawn as general  partner of the Partnership
effective as of the date hereof; and

     WHEREAS,  the Trading Manager  Agreement,  dated as of March 1, 1999, among
Smith Barney Futures Management Inc., a predecessor of SBFM, the Partnership and
SFG has been terminated as of the date hereof; and

     WHEREAS, the Partnership entered into a Customer Agreement, dated April 22,
1997, with SSB's  predecessor and entered into an Amended and Restated  Customer
Agreement, dated as of March 1, 1999, with SSB; and

     WHEREAS, the Partnership and SSB wish to enter into this Second Amended and
Restated  Customer  Agreement  setting forth the terms and conditions upon which
SSB will continue to perform brokerage and other services for the Partnership;

     NOW,  THEREFORE,  in consideration of the promises and the mutual covenants
contained herein, it is agreed as follows:

1. Appointment of Broker/Dealer and Opening of Account.  The Partnership  hereby
appoints SSB as its commodity  broker/dealer  through whom the Partnership  will
execute trades in commodity interests including futures contracts, options, spot
and forward  contracts.  The Partnership  shall deposit or cause to be deposited
the partners' capital  contributions in a commodity  brokerage account with SSB,
and will  maintain all of its assets,  as they from time to time exist,  in such
account  except  for  such  amounts  as  may be  necessary  or  desirable  to be
maintained in a bank account or with a broker to facilitate trading in interbank
forward foreign currency  transactions and the payment of Partnership  expenses,
redemptions or distributions. The Partnership shall execute such other documents
as shall be  necessary  or  appropriate  to permit SSB to perform  its  services
hereunder.

2.  Services of SSB. SSB agrees to use its best  efforts to effect  transactions
for  the  Partnership's  account.  SSB  agrees  to  assist  the  Partnership  in
performing  various  functions.  These  include,  but are not  limited  to:  (a)
calculating the  Partnership's Net Assets and Net Asset Value (as such terms are
defined in the Partnership's Limited Partnership Agreement) at such times as may
be required, (b) calculating any fees due the Partnership's trading advisor (the
"Advisor"),  (c) preparing and confirming  financial  information  for annual or
interim  audits  and  reports  and (d)  establishing  procedures  for  effecting
redemptions,  cash  distributions  and the liquidation of the  Partnership  upon
termination.  SSB further agrees to furnish clerical and bookkeeping support for
the administration of the Partnership.


3. (a) Brokerage and Other Fees.  The  Partnership  shall pay to SSB, in lieu of
brokerage  commissions  on a per trade basis,  a monthly flat rate brokerage fee
equal to 6.5% per  year of the  Partnership's  month-end  Net  Assets  (computed
monthly by multiplying the  Partnership's Net Assets as of the last business day
of each month by 6.5% and  dividing  the result  thereof by the ratio  which the
total number of calendar days in that month bears to 365 days) less $3,000.  The
Partnership shall also pay all National Futures Association, exchange, clearing,
user, give-up and floor brokerage fees, or shall reimburse SSB for all such fees
previously paid by SSB on behalf of the Partnership.  SSB's fee may be increased
or decreased at any time at SSB's discretion upon notice to the Partnership.

4. Payment of Interest. All of the assets of the Partnership which are deposited
in the  Partnership's  accounts at SSB will be deposited and maintained in cash.
During the term of this Agreement, SSB will, within 10 days following the end of
each calendar  month,  credit the  Partnership's  brokerage  accounts with a sum
representing  interest  on eighty  percent  (80%) of the  average  daily  equity
maintained  in cash in such  accounts  during each month  (i.e.,  the sum of the
daily cash  balances in such  accounts  divided by the total  number of calendar
days in that  month) at a 30-day  Treasury  bill rate  determined  weekly by SSB
based on the  average  non-competitive  yield on  3-month  U.S.  Treasury  bills
maturing in 30 days (or on the closest  maturity  date thereto) from the date on
which such  weekly  rate is  determined.  The equity  maintained  in cash in the
account on  Saturdays,  Sundays and holidays  shall be the equity  maintained in
cash in the  account as of the close of business  on the  immediately  preceding
business day.

5. Trading  Authorization.  (a) Management  Agreement.  The General  Partner has
entered into an individual  management agreement with Campbell & Company,  Inc.,
as  the  Partnership's  Advisor.  Pursuant  to  the  management  agreement,  the
Partnership's  Advisor  shall have  discretion  to order  purchases and sales of
commodity  interests  including futures  contracts,  options,  spot, and forward
contracts.   SBFM,  as  the  Partnership's  general  partner,  may  allocate  or
reallocate all or a portion of the  Partnership's  assets among trading programs
operated  by the  Partnership's  Advisor  or select  or  appoint  additional  or
replacement  trading  advisors.  SSB is hereby  authorized to execute all orders
placed by the  Partnership's  Advisor for the account of the  Partnership  until
notified by SBFM to the  contrary,  and shall have no obligation to inquire into
the reason for or method of  determining  such  orders,  nor any  obligation  to
monitor  such orders in  relation to the  Partnership's  trading  policies.  The
provisions  of this  Paragraph  5 shall apply with equal force and effect to any
other commodity trading advisor designated in the future by SBFM.


6. Terms of the Account.  The following terms and conditions shall be applicable
to the Partnership's account:

     (a) The word  "property"  is used herein to mean  securities  of all kinds,
monies,  options,  commodities  and  contracts  for the future  delivery  of, or
otherwise  relating to,  commodities or securities and all property  usually and
customarily dealt in by brokerage firms.

     (b) All transactions for the Partnership's  account shall be subject to the
regulations  of all  applicable  federal,  state  and  self-regulatory  agencies
including,  but  not  limited  to,  the  various  commodity  exchanges  and  the
constitutions,  rules and customs,  as the same may be constituted  from time to
time, of the exchange or market (and its clearing house, if any) where executed.
Actual deliveries are intended on all transactions.  The Partnership also agrees
not to exceed the speculative position limits for its own account,  acting alone
or in concert with others,  and promptly to advise SSB if it is required to file
reports  of  its  commodity   positions  with  the  Commodity   Futures  Trading
Commission.


     (c) Any and all property  belonging to the Partnership,  or in which it may
have an interest,  held by SSB or carried in the  Partnership's  account (either
individually  or jointly with others) shall be subject to a general lien for the
discharge of the  Partnership's  obligations to SSB, wherever or however arising
and without  regard to whether or not SSB has made advances with respect to such
property,  and SSB is hereby  authorized  to sell  and/or  purchase  any and all
property in the  Partnership's  account  without  notice to satisfy such general
lien.

     (d) The Partnership agrees to maintain such collateral and/or margin as SSB
may,  in its  discretion,  require  from time to time and will pay on demand any
amount  owing with  respect to its  account.  Against a "short"  position in any
commodity contract, prior to the maturity thereof, the Partnership will give SSB
instructions to cover, or furnish SSB with all necessary delivery documents, and
in default thereof, SSB may, without demand or notice,  cover the contracts,  or
if an  order  to buy in such  contracts  cannot  be  executed  under  prevailing
conditions,  SSB may procure the actual commodity and make delivery thereof upon
any terms and by any method which may be feasible.  It is further agreed that if
the Partnership fails to receive sufficient funds to pay for any commodities and
commodity  futures  contracts  and/or to satisfy any demands for original and/or
variation  margin,  SSB may, without prior demand and notice,  sell any property
held by it in the Partnership's account and any loss resulting therefrom will be
charged to the Partnership's account.

     (e) SSB may, whenever in its discretion it considers it necessary for its
protection, sell any or all property held in the Partnership's account, cancel
any open orders for the purchase or sale of any property with or without notice
to the Partnership, and SSB may borrow or buy in any property required to make
delivery against any sales, including a short sale, effected for the
Partnership. Such sale or purchase may be public or private and may be made
without advertising or notice to the Partnership and in such manner as SSB may,
in its discretion, determine, and no demands, calls, tenders or notices which
SSB may make or give in any one or more instances shall invalidate the aforesaid
waiver on the Partnership's part. At any such sale SSB may purchase the property
free of any right of redemption and the Partnership shall be liable for any
deficiency in its account.

     (f) SSB and the Partnership  agree that the parties shall have the right to
offset any unrealized gains and losses on the  Partnership's  open positions and
to net  any  open  orders  for the  purchase  or  sale  of any  property  of the
Partnership.

     (g) The Partnership agrees to pay service fees and/or interest charges upon
its account  monthly at the prevailing  and/or  allowable rates according to the
laws  of the  State  of New  York,  as  determined  by  SSB at the  time  of the
acceptance of this Agreement in its New York office and thereafter.

     (h) If any  provisions  herein are or should become  inconsistent  with any
present or future law,  rule or  regulation  of any  sovereign  government  or a
regulatory body having  jurisdiction  over the subject matter of this Agreement,
such  provision  shall be deemed to be rescinded or modified in accordance  with
any such law, rule or regulation.  In all other  respects,  this Agreement shall
continue and remain in full force and effect.

7. Indemnification.


     (a) In any action,  suit or proceeding to which SSB was or is a party or is
threatened  to be made a  party  by  reason  of the  fact  that it is or was the
commodity broker for the Partnership (other than an action by or in the right of
the Partnership), the Partnership shall indemnify and hold harmless SSB, subject
to  subparagraph  (c),  against  any  loss,  liability,  damage,  cost,  expense
(including attorneys' fees and accountants' fees), judgments and amounts paid in
settlement  actually  and  reasonably  incurred  by it in  connection  with such
action,  suit or  proceeding  if SSB  acted in good  faith  and in a  manner  it
reasonably believed to be in the best interests of the Partnership,  except that
no indemnification  shall be made in respect of any claim, issue or matter which
as to  SSB  constituted  negligence,  misconduct  or  breach  of  its  fiduciary
obligations to the Partnership,  unless,  and only to the extent that, the court
in which such action or suit was brought shall determine upon application  that,
despite the  adjudication of liability but in view of all  circumstances  of the
case, SSB is fairly and reasonably entitled to indemnification for such expenses
which such court shall deem proper; and further provided that no indemnification
shall be available from the Partnership if such indemnification is prohibited by
Section 16 of the Partnership's Limited Partnership  Agreement.  The termination
of any action, suit or proceeding by judgment, order or settlement shall not, of
itself, create a presumption that SSB did not act in good faith, and in a manner
which it  reasonably  believed to be in or not opposed to the best  interests of
the Partnership.

     (b) To the extent that SSB has been  successful  on the merits or otherwise
in defense of any action,  suit or proceeding  referred to in  subparagraph  (a)
above,  or in defense of any claim,  issue or matter  therein,  the  Partnership
shall indemnify it against the expenses, including attorneys' fees, actually and
reasonably incurred by it in connection therewith.

     (c) Any  indemnification  under subparagraph (a) above, unless ordered by a
court,  shall be made by the Partnership only as authorized in the specific case
and only upon a determination by independent  legal counsel in a written opinion
that  indemnification  is proper in the  circumstances  because  SSB has met the
applicable standard of conduct set forth in subparagraph (a) above.

     (d) The  term  SSB as  used in this  Paragraph  7 shall  include  SSB,  its
officers, directors, stockholders, employees and affiliates.

8.  Termination.  This  Agreement  may be terminated at any time by either party
hereto upon notice to the other, in which event the brokerage  accounts shall be
closed  and all  positions  open at such time  shall be  liquidated  or shall be
transferred to another broker as directed by the Partnership.

9. Miscellaneous.  This Agreement shall be binding upon and inure to the benefit
of the  parties  hereto  and  their  respective  successors  and  assigns.  This
Agreement shall be governed by the laws of the State of New York.





     IN WITNESS WHEREOF,  this Agreement has been executed by the parties hereto
as of the day and year first above written.

                                       SMITH BARNEY POTOMAC FUTURES FUND L.P.

                                       By: Smith Barney Futures Management LLC.
                                          (General Partner)


                                           By:  /s/ David J. Vogel
                                              --------------------
                                           Name: David J. Vogel
                                           Title:  President


                                           SALOMON SMITH BARNEY INC.
                                          (Commodity Broker/Dealer)


                                           By:  /s/ David J. Vogel
                                              -------------------------
                                           Name:  David J. Vogel
                                           Title: