EXHIBIT 99.1


                            EQUISTAR CHEMICALS, LP
                         EQUISTAR FUNDING CORPORATION
                           FORM OF LETTER TO CLIENTS
                                      for
                           Tender of All Outstanding

                         10 1/8% Senior Notes Due 2008
                          in exchange for registered
                         10 1/8% Senior Notes Due 2008

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The exchange offer will expire at 5:00 p.m., New York City time, on ____________
___, 2001, unless extended (the "Expiration Date"). Outstanding notes tendered
in the exchange offer may be withdrawn at any time before 5:00 p.m., New York
City time, on the Expiration Date.
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To Our Clients:

     We are enclosing with this letter a prospectus dated _________, 2001 of
Equistar Chemicals, LP and Equistar Funding Corporation (the "Issuers") and the
related letter of transmittal. These two documents together constitute the
Issuers' offer to exchange their 10 1/8% Senior Notes Due 2008 ( the "New
Notes"), the issuance of which has been registered under the Securities Act of
1933, as amended (the "Securities Act"), for a like principal amount of their
issued and outstanding 10 1/8% Senior Notes Due 2008 (the "Outstanding Notes").
The exchange of Outstanding Notes for New Notes and related documentation are
referred to herein as the "Exchange Offer."

     The Exchange Offer for the Outstanding Notes is not conditioned upon any
minimum aggregate principal amount of Outstanding Notes being tendered for
exchange.

     We are the holder of record of Outstanding Notes held by us for your own
account.  A tender of your Outstanding Notes held by us can be made only by us
as the record holder according to your instructions.  The letter of transmittal
is furnished to you for your information only and cannot be used by you to
tender Outstanding Notes held by us for your account.

     We request instructions as to whether you wish to tender any or all of the
Outstanding Notes held by us for your account under the terms and conditions of
the Exchange Offer.  We also request that you confirm that we may, on your
behalf, make the representations contained in the letter of transmittal.

     Under the letter of transmittal, each holder of Outstanding Notes will
represent to the Issuers that

     1.  any New Notes received are being acquired in the ordinary course of
         business of the person receiving such New Notes,

     2.  that person does not have an arrangement or understanding with any
         person or entity to participate in the distribution of the Outstanding
         Notes or the New Notes within the meaning of the Securities Act, and

     3.  that person is not an "affiliate," as defined in Rule 405 under the
         Securities Act, of either of the Issuers or, if it is an affiliate, it
         will comply with any applicable registration and prospectus delivery
         requirements of the Securities Act.


     In addition, each holder of Outstanding Notes will represent to the Issuers
that

     1.  if that person is not a broker-dealer, it is not engaged in, and does
         not intend to engage in, distribution of New Notes, and

     2.  if that person is a broker-dealer that will receive New Notes for its
         own account in exchange for Outstanding Notes that were acquired as a
         result of market-making activities or other trading activities, it will
         deliver a prospectus meeting the requirements of the Securities Act in
         connection with any resale of those New Notes; however, by so
         acknowledging and by delivering a prospectus, it will not be deemed to
         admit that it is an "underwriter" within the meaning of the Securities
         Act.

                              Very truly yours,

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     Please return your instructions to us in the enclosed envelope within ample
time to permit us to submit a tender on your behalf before the Expiration Date.

                                INSTRUCTION TO
                           DTC TRANSFER PARTICIPANT

To Participant of The Depository Trust Company:

     The undersigned hereby acknowledges receipt and review of the prospectus
dated          ___, 2001 of Equistar Chemicals, LP and Equistar Funding
Corporation (the "Issuers") and the related letter of transmittal. These two
documents together constitute the Issuers' offer to exchange their 10 1/8%
Senior Notes Due 2008 (the "New Notes"), the issuance of which has been
registered under the Securities Act of 1933, as amended (the "Securities Act"),
for a like principal amount of their issued and outstanding 10 1/8% Senior Notes
Due 2008 (the "Outstanding Notes"). The exchange of Outstanding Notes for New
Notes is referred to herein as an "Exchange Offer."

     This will instruct you, the registered holder and DTC participant, as to
the action to be taken by you relating to the Exchange Offer for the Outstanding
Notes held by you for the account of the undersigned.

     The aggregate principal amount of the Outstanding Notes held by you for the
account of the undersigned is (fill in amount):

     ---------------------------------------------------------------------
            Title of Series                      Principal Amount
     ---------------------------------------------------------------------
     10 1/8% Senior Notes Due 2008
     ---------------------------------------------------------------------

     With respect to the Exchange Offer, the undersigned hereby instructs you
     (check appropriate box):

[_]  To TENDER all Outstanding Notes held by you for the account of the
     undersigned.

[_]  To TENDER the following amount of Outstanding Notes held by you for the
     account of the undersigned:

     ---------------------------------------------------------------------
            Title of Series                Principal Amount Tendered
     ---------------------------------------------------------------------
     10 1/8% Senior Notes Due 2008
     ---------------------------------------------------------------------

[_]  NOT to TENDER any Outstanding Notes held by you for the account of the
     undersigned.

     If no box is checked, a signed and returned Instruction to DTC Transfer
Participant will be deemed to instruct you to tender all Outstanding Notes held
by you for the account of the undersigned.

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     If the undersigned instructs you to tender the Outstanding Notes held by
you for the account of the undersigned, it is understood that you are authorized
to make, on behalf of the undersigned (and the undersigned, by its signature
below, hereby makes to you), the representations contained in the letter of
transmittal that are to be made with respect to the undersigned as a beneficial
owner, including, but not limited to, the representations that

     1.  any New Notes received are being acquired in the ordinary course of
         business of the undersigned;

     2.  the undersigned does not have an arrangement or understanding with any
         person or entity to participate in the distribution of the Outstanding
         Notes or the New Notes within the meaning of the Securities Act;

     3.  the undersigned is not an "affiliate," as defined in Rule 405 of the
         Securities Act, of either of the Issuers or, if it is an affiliate, it
         will comply with any applicable registration and prospectus delivery
         requirements of the Securities Act;

     4.  if the undersigned is not a broker-dealer, it is not engaged in, and
         does not intend to engage in, a distribution of New Notes, and

     5.  if the undersigned is a broker-dealer that will receive New Notes for
         its own account in exchange for Outstanding Notes that were acquired as
         a result of market-making activities or other trading activities, it
         will deliver a prospectus meeting the requirements of the Securities
         Act in connection with any resale of those New Notes; however, by so
         acknowledging and by delivering a prospectus, the undersigned will not
         be deemed to admit that it is an "underwriter" within the meaning of
         the Securities Act.

                                   SIGN HERE

Name of beneficial owner(s):____________________________________________________

Signature(s):___________________________________________________________________

Name(s) (please print):_________________________________________________________

Address:________________________________________________________________________

Telephone Number:_______________________________________________________________

Taxpayer Identification or Social Security Number:______________________________

Date:___________________________________________________________________________

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