MILLENNIUM CHEMICALS INC
10-K, 1999-03-31
PLASTIC MATERIALS, SYNTH RESINS & NONVULCAN ELASTOMERS
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________________________________________________________________________________
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
 
                                   FORM 10-K
 
            [x] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE
                        SECURITIES EXCHANGE ACT OF 1934
                  FOR THE FISCAL YEAR ENDED DECEMBER 31, 1998
 
                                       OR
          [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE
                        SECURITIES EXCHANGE ACT OF 1934
 
                         FOR THE TRANSITION PERIOD FROM
                                ------------ TO
                                  ------------
                        COMMISSION FILE NUMBER: 1-12091
                            ------------------------
 
                           MILLENNIUM CHEMICALS INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
                            ------------------------
 
<TABLE>
<S>                                                 <C>
                     DELAWARE                                           22-3436215
         (STATE OR OTHER JURISDICTION OF                   (I.R.S. EMPLOYER IDENTIFICATION NO.)
          INCORPORATION OR ORGANIZATION)
 
                230 HALF MILE ROAD                                      07701-7015
                  P.O. BOX 7015                                         (ZIP CODE)
               RED BANK, NEW JERSEY
     (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)
</TABLE>
 
        REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: 732-933-5000
                            ------------------------
 
          SECURITIES REGISTERED PURSUANT TO SECTION 12(B) OF THE ACT:
 
<TABLE>
<CAPTION>
                                                                  NAME OF EACH EXCHANGE
               TITLE OF EACH CLASS                                 ON WHICH REGISTERED
- --------------------------------------------------  --------------------------------------------------
<S>                                                 <C>
             Common Stock, par value                             New York Stock Exchange
                 $0.01 per share
</TABLE>
 
          SECURITIES REGISTERED PURSUANT TO SECTION 12(G) OF THE ACT:
                                      None
 
     Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
Registrant is required to file such reports) and (2) has been subject to such
filing requirements for the past 90 days. Yes [x] No [ ].
 
     Indicate by check mark if disclosure of delinquent filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to the
best of Registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [ ]
 
     The aggregate market value of voting stock held by non-affiliates as of
March 15, 1999 (based upon the closing price of $19.00 per common share as
quoted on the New York Stock Exchange), is approximately $1.4 billion. For
purposes of this computation, the shares of voting stock held by directors,
officers and employee benefit plans of the registrant and its wholly-owned
subsidiaries were deemed to be stock held by affiliates. The number of shares of
common stock outstanding at March 15, 1999, was 77,873,586 shares.
 
                      DOCUMENTS INCORPORATED BY REFERENCE
 
     Portions of the Registrant's Annual Report to Shareholders for the year
ended December 31, 1998, are incorporated by reference into Parts I and II of
this Annual Report on Form 10-K as indicated herein. Portions of the
Registrant's definitive Proxy Statement relating to the 1999 Annual Meeting of
Shareholders, to be filed with the Securities and Exchange Commission, are
incorporated by reference in Part III of this Annual Report on Form 10-K as
indicated herein.
 
________________________________________________________________________________
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                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
ITEM                                                                                                          PAGE
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<C>    <S>                                                                                                    <C>
                                                      PART I
 1.    Business............................................................................................     3
 2.    Properties..........................................................................................    26
 3.    Legal Proceedings...................................................................................    27
 4.    Submission of Matters to a Vote of Security Holders.................................................    27
 
                                                     PART II
 5.    Market for the Registrant's Common Equity and Related Shareholder Matters...........................    28
 6.    Selected Financial Data.............................................................................    28
 7.    Management's Discussion and Analysis of Financial Condition and Results of Operations...............    28
7A.    Quantitative and Qualitative Disclosures about Market Risk..........................................    28
 8.    Financial Statements and Supplementary Data.........................................................    28
 9.    Changes in and Disagreements with Accountants on Accounting and Financial Disclosure................    29
 
                                                     PART III
10.    Directors and Executive Officers of the Registrant..................................................    29
11.    Executive Compensation..............................................................................    29
12.    Security Ownership of Certain Beneficial Owners and Management......................................    29
13.    Certain Relationships and Related Transactions......................................................    29
 
                                                     PART IV
14.    Exhibits, Financial Statement Schedule(s) and Reports on Form 8-K...................................    29
</TABLE>
 
DISCLOSURE CONCERNING FORWARD-LOOKING STATEMENTS
 
     All statements, other than statements of historical fact, included in the
1998 Annual Report to Shareholders (the 'Annual Report to Shareholders') of
Millennium Chemicals Inc. (the 'Company') and in this Annual Report on Form
10-K, including, without limitation, the statements under 'Business -- Strategy'
included in this Annual Report on Form 10-K and 'Management's Discussion and
Analysis of Financial Condition and Results of Operations' included in the
Annual Report to Shareholders and incorporated by reference in this Annual
Report on Form 10-K, are, or may be deemed to be, forward-looking statements
within the meaning of Section 21E of the Securities Exchange Act of 1934 (the
'Exchange Act'). Important factors that could cause actual results to differ
materially from those discussed in such forward-looking statements ('Cautionary
Statements') include: the balance between industry production capacity and
operating rates, on the one hand, and demand for the products of the Company and
Equistar Chemicals, LP ('Equistar'), including titanium dioxide, ethylene and
polyethylene, on the other hand; the economic trends in the United States and
other countries which serve as the Company's and Equistar's marketplaces;
customer inventory levels; competitive pricing pressures; the cost and
availability of the Company's and Equistar's feedstocks and other raw materials,
including natural gas and ethylene; operating interruptions (including leaks,
explosions, fires, mechanical failures, unscheduled downtime, transportation
interruptions, spills, releases and other environmental risks); competitive
technology positions; failure to achieve the Company's or Equistar's
productivity improvement and cost-reduction targets or to complete construction
projects on schedule; difficulties in addressing Year 2000 issues on a timely
basis by the Company, Equistar, their suppliers or their customers; and, other
unforeseen circumstances.
 
     Some of these Cautionary Statements are discussed in more detail under
'Business' in this Annual Report on Form 10-K and 'Management's Discussion and
Analysis of Financial Condition and Results of Operations' in the Annual Report
to Shareholders. All subsequent written and oral forward-looking statements
attributable to the Company or persons acting on behalf of the Company are
expressly qualified in their entirety by such Cautionary Statements.
 
                                       2
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ITEM 1. BUSINESS
 
     Millennium Chemicals Inc. (the 'Company') is a major international chemical
company, with leading market positions in a broad range of commodity,
industrial, performance and specialty chemicals.
 
     The Company has three principal wholly owned operating subsidiaries:
Millennium Inorganic Chemicals Inc. (collectively, with its non-United States
affiliates, 'Millennium Inorganic Chemicals'); Millennium Petrochemicals Inc.
('Millennium Petrochemicals'); and, Millennium Specialty Chemicals Inc.
('Millennium Specialty Chemicals'). The Company also owns a 29.5% interest in
Equistar Chemicals, LP ('Equistar'), a joint venture owned by the Company,
Lyondell Chemical Company ('Lyondell') and Occidental Petroleum Corporation
('Occidental'). The Company accounts for its interest in Equistar as an equity
investment.
 
     The Company has leading market positions in the United States ('U.S.') and
the world:
 
      Millennium Inorganic Chemicals is the second-largest producer of titanium
      dioxide ('TiO2') in the world, with manufacturing facilities in the U.S.,
      the United Kingdom ('U.K.'), France, Brazil and Australia. Millennium
      Inorganic Chemicals is also the largest merchant seller of titanium
      tetrachloride ('TiCl4') in the U.S. and Europe;
 
      Millennium Petrochemicals is the second-largest producer of acetic acid
      and vinyl acetate monomer ('VAM') in the U.S. and, through its 85%
      interest in La Porte Methanol Company, L.P. ('La Porte Methanol Company'),
      a major U.S. producer of methanol;
 
      Millennium Specialty Chemicals is the world's largest producer of terpene
      fragrance chemicals, the world's second-largest manufacturer of
      cadmium-based pigments and a major producer of silica gel; and
 
      Through its 29.5% interest in Equistar, the Company is a partner in the
      largest producer of ethylene and polyethylene in North America, and a
      leading producer of performance polymers, oxygenated chemicals, aromatics
      and specialty chemicals.
 
     As of January 18, 1999, the Company owns an 85% interest in La Porte
Methanol Company, a Delaware limited partnership that owns a methanol plant
located in La Porte, Texas, and certain related facilities that were contributed
to the partnership by Millennium Petrochemicals. These operations were wholly
owned by Millennium Petrochemicals until they were contributed to the
partnership on January 18, 1999.
 
     The Company was incorporated in Delaware on April 18, 1996. The Company's
U.K. office is located at Laporte Road, Stallingborough, Grimsby, North East
Lincolnshire, DN40 2PR, England. Its U.K. telephone number is 0345-662663. The
Company's principal executive offices in the U.S. are located at 230 Half Mile
Road, P.O. Box 7015, Red Bank, New Jersey 07701-7015. Its U.S. telephone number
is (732) 933-5000 and its U.S. fax number is 732-933-5240.
 
DEVELOPMENT OF BUSINESS
 
     The Company has been an independent, publicly owned company since its
demerger (i.e., spin-off) on October 1, 1996 (the 'Demerger'), from Hanson PLC
('Hanson'). In connection with the Demerger, Hanson transferred its chemical
operations to the Company and the Company issued to Hanson's shareholders all of
the Company's then outstanding common stock, par value $.01 per share (the
'Common Stock'). For additional information concerning the Demerger, see Note 1
to the Company's Consolidated Financial Statements included in the Company's
Annual Report to Shareholders.
 
     On December 1, 1997, the Company contributed to Equistar substantially all
of the net assets comprising its polyethylene, alcohol and related products
business segment, which had been owned by Millennium Petrochemicals. In
exchange, the Company received a 43% interest in Equistar, Equistar repaid $750
million of debt due to the Company from its contributed businesses, the Company
retained $250 million of certain accounts receivable and Equistar assumed
certain liabilities from the Company. A subsidiary of the Company guaranteed
$750 million of Equistar's newly issued bank debt. The Company used the $750
million received from Equistar, together with collected proceeds of the retained
 
                                       3
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accounts receivable, to repay debt under its revolving credit facility. Lyondell
contributed to Equistar substantially all of the assets comprising its
petrochemical and polymer business segments, as well as a $345 million note. In
exchange, Lyondell received a 57% interest in Equistar, and Equistar assumed
$745 million of Lyondell's debt and certain liabilities from Lyondell. On May
15, 1998, the Company and Lyondell expanded Equistar with the addition of the
ethylene, propylene, ethylene oxide, ethylene glycol and other ethylene oxide
derivatives businesses of Occidental's chemical subsidiary. Occidental
contributed substantially all of the net assets of these businesses (including
approximately $205 million of related debt) to Equistar. In exchange, Equistar
borrowed an additional $500 million, $420 million of which was distributed to
Occidental and $75 million of which was distributed to the Company. Equistar is
now owned 41% by Lyondell, 29.5% by Occidental and 29.5% by the Company.
Equistar is governed by a Partnership Governance Committee consisting of
representatives of each partner. Approval of Equistar's strategic plans and
other major decisions requires the consent of the representatives of the three
partners. All decisions of Equistar's Governance Committee that do not require
the consent of the representatives of the three partners may be made by
Lyondell's representatives alone.
 
     On December 31, 1997, the Company completed the purchase of the shares of
Rhone-Poulenc Chimie S.A.'s Thann et Mulhouse TiO2 and related intermediate and
specialty chemical operations in France for $185 million, including assumed
debt. The operations in France provide capacity to produce approximately 138,000
metric tons per year of TiO2.
 
     On November 27, 1998, the Company entered into an agreement to sell its
remaining interests in Suburban Propane Partners, L.P. ('Suburban Propane'), a
publicly-traded limited partnership which is the third-largest retail marketer
of propane in the U.S., to Suburban Propane and its management for $75 million
in cash. As such, Suburban Propane is reflected in the Company's financial
statements as a discontinued operation. The Company expects to complete this
transaction in the second quarter of 1999.
 
     On July 1, 1998, the Company completed the acquisition of 99% of the voting
shares and 72% of total shares of Titanio do Brazil S.A. ('Tibras'), Brazil's
only integrated TiO2 producer, for $129 million, including assumed debt. The two
operations comprising Tibras included a plant which has the capacity to produce
approximately 60,000 metric tons per year of TiO2 and a mineral sands mine with
over two million metric tons of recoverable reserves.
 
     On January 18, 1999, the Company completed certain transactions with Linde
AG ('Linde') relating to the Company's synthesis gas ('syngas') unit in La
Porte, Texas, and a 15% interest in its methanol business, whereby the Company
received $122.5 million in cash. Linde will operate the syngas facility under a
long-term lease with a purchase option. The Company has the right to require
Linde to purchase the Unit under certain circumstances. In addition, Linde will
operate and hold a 15% interest in the methanol facility. Linde has the
obligation to purchase an additional 5% interest in the methanol partnership
upon the occurrence of certain events.
 
     In this Annual Report on Form 10-K: (i) references to the Company are to
the Company and its consolidated subsidiaries, except as the context otherwise
requires; (ii) references to the activities of, and financial information with
respect to, the Company prior to October 1, 1996, are to the historical
activities and combined historical financial information of the businesses that
were transferred to the Company by Hanson in connection with the Demerger;
(iii) references to 'tpa' are to metric tons per annum (a metric ton is equal to
1,000 kilograms or 2,204.6 pounds); and, (iv) references to the Company's and
Equistar's annual rated capacity and annual production capacity are based upon
engineering assessments made by the Company and Equistar, respectively. Actual
production may vary depending on a number of factors including feedstocks,
product mix, unscheduled maintenance and demand.
 
                                       4
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                                    STRATEGY
 
     The Company's Vision is: 'BE THE MOST VALUE-CREATIVE CHEMICAL COMPANY IN
THE WORLD.' Its strategy is to maximize long-term Economic Value Added
('EVA'r'*') and cash flow, through improved efficiency at existing operations,
disciplined capital expenditures, selective dispositions, and selective
acquisitions of intermediate and specialty chemical businesses. In addition to
building upon its leading market positions in its existing lines of business,
the Company seeks to increase efficiency and reduce costs at its existing
businesses, focus its production on more profitable value-added products, expand
its operations worldwide and increase the proportion of its business that is
less cyclical in nature. The Company emphasizes stock ownership by management
and links a significant portion of management's compensation to the achievement
of performance targets, including targets based on EVA'r', as well as the
Company's performance relative to its industry peers as measured by total
shareholder return. The Company is committed to providing a safe workplace and
employing the highest ethical standards in its dealings with customers,
suppliers and the communities in which it operates.
 
     The following are key elements of the Company's strategy:
 
     FOCUS GROWTH ON LESS CYCLICAL, VALUE-CREATIVE BUSINESSES. The Company seeks
to capitalize upon the leading market positions of its intermediate and
specialty chemical businesses by expanding in domestic and international markets
through capital expenditures and, as opportunities permit, selective
acquisitions. Millennium Inorganic Chemicals advanced its position through the
acquisition on July 1, 1998, of Tibras, South America's only integrated producer
of TiO2. In addition, a 41,000 tpa chloride-process TiO2 expansion at
Stallingborough, U.K., was substantially completed in the last quarter of 1998
at a cost of approximately $130 million, increasing Millennium Inorganic
Chemicals' total global capacity to 712,000 tpa, approximately 16% of global
capacity. During 1998, Millennium Petrochemicals increased its acetic acid
capacity from 900 million to 1 billion pounds per year utilizing its proprietary
low-water technology. Millennium Petrochemicals' transactions with Linde
involving its La Porte, Texas, syngas business and a 15% interest in its
methanol unit generated $122.5 million in cash and created a value-creative
partnership with long-term EVA'r' benefits. At Millennium Specialty Chemicals,
debottlenecking and new equipment investments over the past two years have
doubled capacity for linalool and geraniol, two major fragrance chemicals.
 
     IMPROVE THE COMPANY'S COST STRUCTURE IN COMMODITY, INDUSTRIAL AND
PERFORMANCE CHEMICALS. The Company seeks to increase the competitiveness of its
commodity, industrial and performance chemical businesses by improving the
efficiency of existing operations through the implementation of internally
developed and externally benchmarked best practices and ongoing investments in
technology, new processes and equipment. During 1997 and 1998, Millennium
Inorganic Chemicals reduced the annual cost base of its TiO2 production by
approximately $70 million compared to 1996 levels. An additional $100 million of
annualized cost savings is targeted by the end of 2000. Beginning in 1998 and
continuing through 1999, the Company is implementing an $84 million global SAP
software-supported business improvement project, which is designed to make the
Company a more efficient, globally integrated operation. All major businesses
and plants, with the exception of the Brazilian TiO2 operations, are expected to
be utilizing the SAP integrated software in the third quarter of 1999.
 
     INCREASE PRODUCTION AND MARKETING OF VALUE-ADDED PRODUCTS. The Company
seeks to expand its position as a supplier of less cyclical, value-added
intermediate and specialty chemicals, which historically command higher margins
than commodity chemicals. Millennium Inorganic Chemicals is constructing a new
$18 million research center near Baltimore, Maryland. The new center, which will
be opened officially in September of 1999, will improve Millennium Inorganic
Chemicals' ability to research, develop and test new products and processes,
providing customers with additional value-added products and services.
Millennium Inorganic Chemicals has recently established a team to focus on the
global marketing and development of its specialty inorganic chemical businesses.
Millennium Specialty Chemicals now utilizes a crystallization process to make
high-purity anethole, a licorice-like flavor chemical. This process has improved
product quality and lowered production costs.
 
     EMPHASIZE EMPLOYEE STOCK OWNERSHIP AND PERFORMANCE-BASED COMPENSATION. In
order to align the interests of the Company's management and shareholders, the
Company has established guidelines
 
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* EVA'r' is a registered trademark of Stern, Stewart & Co.
 
                                       5
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for significant investment by management in Common Stock. Since October 1, 1996,
the Company's top 30 executive officers and senior managers have purchased
shares of Common Stock with a market value at March 15, 1999, of over $10
million. These include shares purchased under the Company's Salary and Bonus
Deferral Plan, some of which are subject to forfeiture, but do not include
restricted Common Stock or other awards under the Company's Long Term Stock
Incentive Plan. In addition, management's long-term incentive compensation
(including the vesting of 75% of the awards of restricted stock) is dependent
upon the achievement of performance goals based on value creation targets and
the Company's performance relative to industry peers, as measured by total
shareholder return. Information relating to these guidelines and plans is
presented under the heading 'Executive Compensation' in the Company's Proxy
Statement for its 1999 Annual Meeting of Shareholders. To encourage ownership of
Common Stock by employees generally, the Company has established a 401(k) plan
that partially matches employee contributions with Common Stock, a Long Term
Incentive Plan that awards participants with Common Stock based on performance
measured by EVA'r', Employee Stock Purchase Plans, a Supplemental Savings and
Investment Plan and a Salary and Bonus Deferral Plan. In addition, the Company
has established a Save As You Earn (SAYE) program and a Profit Sharing Plan for
its U.K. employees, a 'Plan D'Epargne' for its French employees and a Salary
Deferral Plan for its Australian employees.
 
     PROVIDE A SAFE WORKPLACE AND EMPLOY THE HIGHEST ETHICAL STANDARDS. The
Company is committed to providing a safe workplace and employing the highest
ethical standards in its dealings with customers, suppliers and the communities
in which it operates. 'PEOPLE CREATE THE VALUE' is the basis of the Company's
People Policy. The People Policy promotes innovation and value-creativity within
the context of the Company's Core Values, which include: 'EMPLOY THE HIGHEST
ETHICAL STANDARDS; TREAT EACH OTHER WITH RESPECT, TRUST AND OPENNESS; AND,
PROTECT THE ENVIRONMENT AND THE HEALTH AND SAFETY OF OUR EMPLOYEES AND THE
PUBLIC.' To mark the tenth anniversary of the Chemical Manufacturers
Association's ('CMA') adoption of Responsible Care'r', CMA companies, including
the Company, adopted a new set of guiding principles for Responsible Care'r'.
The principles include a commitment by each member company to publicly set
improvement goals. By focusing on the People Policy, the Core Values, the
guiding principles of Responsible Care'r' and EVA'r', the Company and its people
are committed to the Company's Vision: 'BE THE MOST VALUE-CREATIVE CHEMICAL
COMPANY IN THE WORLD.'
 
                               BUSINESS SEGMENTS
 
     The Company's principal operations are grouped into four business segments:
'titanium dioxide and related products,' which are produced by Millennium
Inorganic Chemicals; 'acetyls,' which are produced by Millennium Petrochemicals;
'specialty chemicals,' which are produced by Millennium Specialty Chemicals;
and, 'polyethylene, alcohol and related products,' which were produced by
Millennium Petrochemicals prior to December 1, 1997. See Note 13 of the
Company's Consolidated Financial Statements included in the Annual Report to
Shareholders and page 19 of such Annual Report for financial information about
the Company's business segments; such information is incorporated herein by
reference.
 
     On December 1, 1997, the Company contributed the businesses comprising the
polyethylene, alcohol and related products segment to Equistar. Results of these
businesses for the eleven months ended November 30, 1997, prior to such
contribution, are included in the Company's Consolidated Financial Statements.
Since December 1, 1997, the Company's interest in Equistar is accounted for as
an equity investment. On November 27, 1998, the Company entered into an
agreement to sell its 26.4% interest in Suburban Propane to Suburban Propane and
its management. As such, Suburban Propane is accounted for as a discontinued
operation. See Note 2 to the Company's Consolidated Financial Statements
included in the Annual Report to Shareholders for additional information about
Equistar and Suburban Propane. See the Financial Statements of Equistar included
in this Annual Report on Form 10-K for financial information about Equistar.
 
                                       6
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                               PRINCIPAL PRODUCTS
 
     The following is a description of the principal products of the Company's
consolidated subsidiaries:
 
<TABLE>
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                   PRODUCT                                                    USES
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Titanium dioxide and related products:
     Titanium dioxide ('TiO2')...............  A non-hazardous white pigment used to provide whiteness,
                                               brightness and opacity in coatings and paints, plastics, paper and
                                               rubber.
     Titanium tetrachloride ('TiCl4')........  The intermediate product in making TiO2. TiCl4 is also used for:
                                               the manufacture of titanium metal, which is used to make a wide
                                               variety of products including eyeglass frames, aerospace parts and
                                               golf clubs; the manufacture of catalysts and specialty pigments;
                                               and, as a surface treatment for glass.
     Zirconium-based compounds...............  Chemicals used in coloring for ceramics, in pigment surface
                                               treatment and to enhance optics.
     Specialty TiO2..........................  Micropure and ultra-fine products used in optical, electronic, and
                                               ultra-violet absorption applications.
Acetyls:
     Vinyl acetate monomer ('VAM')...........  A petrochemical product used to produce adhesives, water-based
                                               paints, textile coatings, paper coatings and a variety of polymer
                                               products.
     Acetic acid.............................  A feedstock used to produce VAM, terephthalic acid (used to
                                               produce polyester for textiles and plastic bottles) and industrial
                                               solvents.
     Methanol................................  A feedstock used to produce acetic acid; methyl tertiary butyl
                                               ether ('MTBE'), a gasoline additive; and, formaldehyde. The
                                               Company is a producer of methanol through its 85% interest in La
                                               Porte Methanol Company.
Specialty chemicals:
     Terpene fragrance chemicals.............  Components blended together to make fragrances and flavors used in
                                               detergents, soaps, personal care items, perfumes and food
                                               products.
     Cadmium-based pigments..................  Inorganic colors used in engineered plastics, artists' colors,
                                               ceramics, inks, automotive refinish coatings, coil and extrusion
                                               coatings, aerospace coatings and specialty industrial finishes.
     Silica gel..............................  Inorganic product used to reduce gloss and to control flow in
                                               coatings. Also used to stabilize and extend the shelf life of
                                               beer, plastic films, powdered food products and pharmaceuticals.
</TABLE>
 
     For a description of Equistar's principal products, see 'Equity Interest in
Equistar,' below.
 
                         MILLENNIUM INORGANIC CHEMICALS
 
TITANIUM DIOXIDE
 
     Millennium Inorganic Chemicals is the second-largest producer of TiO2 in
the world, based on reported production capacities. TiO2 is a white pigment used
for imparting whiteness, brightness and opacity in a wide range of products,
including paints and coatings, plastics, paper and elastomers.
 
     The following table sets forth Millennium Inorganic Chemicals' annual
production capacity, as of the date of this report, using the chloride process
and the sulfate process discussed below, and the approximate percentage of its
total production capacity represented by each such process.
 
                                       7
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              MILLENNIUM INORGANIC CHEMICALS' RATED TIO2 CAPACITY
                            (METRIC TONS PER ANNUM)
 
<TABLE>
<CAPTION>
PROCESS                                                              CAPACITY*
- ------------------------------------------------------------------   ---------
<S>                                                                  <C>          <C>
Chloride..........................................................    470,000      66%
Sulfate...........................................................    242,000      34%
     Total........................................................    712,000     100%
</TABLE>
 
- ------------
* Includes 138,000 tpa of sulfate-process capacity in France acquired on
  December 31, 1997; 60,000 tpa of sulfate-process capacity in Brazil acquired
  on July 1, 1998; and, 41,000 tpa of chloride-process capacity from the 1998
  expansion of the Stallingborough, U.K., plant.
 
     TiO2 is produced in two crystalline forms: rutile and anatase. Rutile TiO2
is a more tightly packed crystal that has a higher refractive index than anatase
TiO2 and, therefore, better opacification and tinting strength in many
applications. Some rutile TiO2 products also provide better resistance to the
harmful effects of weather. Rutile TiO2 is the preferred form for use in
coatings, ink and plastics. Anatase TiO2 has a bluer undertone and is less
abrasive than rutile TiO2. It is often preferred for use in paper, ceramics,
rubber and man-made fibers.
 
     TiO2 producers process titaniferous ores to extract a white pigment using
one of two different technologies. The sulfate process is a wet chemical process
that uses concentrated sulfuric acid to extract TiO2, in either anatase or
rutile form. The sulfate process generates higher volumes of waste materials,
including iron sulfate and spent sulfuric acid. The newer chloride process is a
high temperature process in which chlorine is used to extract TiO2 in rutile
form, with greater purity and higher control over the size distribution of the
pigment particles than the sulfate process permits. In general, the chloride
process is also less intensive than the sulfate process in terms of capital
investment, labor and energy. Because much of the chlorine can be recycled, the
chloride process produces less waste subject to environmental regulation. Once
an intermediate TiO2 pigment has been produced by either the chloride or sulfate
process, it is 'finished' into a product with specific performance
characteristics for particular end-use applications through proprietary
processes involving surface treatment with various chemicals and combinations of
milling and micronizing.
 
     Due to customer preferences, as well as economic and environmental factors,
the industry's worldwide chloride-process capacity has increased significantly
relative to sulfate-process capacity during the last twenty years and currently
represents just over half of total industry capacity. Millennium Inorganic
Chemicals is the world's second-largest producer of TiO2 by the chloride
production process.
 
     Millennium Inorganic Chemicals' TiO2 plants are located in the four major
world markets for TiO2: North America, South America, Western Europe and the
Asia/Pacific region. The North American plants, consisting of two in Baltimore,
Maryland, and two in Ashtabula, Ohio, have aggregate production capacities of
241,000 tpa using the chloride process and 44,000 tpa using the sulfate process.
The plant in Salvador, Bahia, Brazil, acquired on July 1, 1998, has a capacity
to produce approximately 60,000 tpa using the sulfate process. Millennium
Inorganic Chemicals also acquired on July 1, 1998, a mineral sands mine located
at Mataraca, Paraiba, Brazil, that supplies the Brazilian plant with titanium
ores. The mine has over two million metric tons of recoverable reserves and a
capacity to produce over 100,000 tpa of titanium ores, which it generally
consumes in its own TiO2 operations, and 16,000 tpa of zircon, which it sells to
third parties. Millennium Inorganic Chemicals' Stallingborough, U.K., plant has
chloride-process production capacity of 150,000 tpa, increased from 109,000 tpa
due to the plant expansion which was substantially completed in late 1998. The
plants in France at Le Havre, Normandy, and Thann, Alsace, have sulfate-process
capacities of 105,000 tpa and 33,000 tpa, respectively. The Kemerton plant in
Western Australia has chloride-process production capacity of 79,000 tpa.
 
     Millennium Inorganic Chemicals' plants operated at an average of 93% of
installed capacity during 1998, 97% during 1997 and 88% during 1996. The
Stallingborough, U.K. plant was shut down during the fall of 1998 to complete
the expansion of the facility. In addition, consistent with Millennium Inorganic
Chemicals' strategy to scale production of TiO2 to match levels of worldwide
demand, production at certain other facilities was slowed in December 1998 in
response to a seasonal slowdown in demand and price competition in Europe.
 
                                       8
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<PAGE>
     Titanium-bearing ores used in the TiO2 extraction process (ilmenite,
natural rutile and leucoxene) occur as mineral sands and hard rock in many parts
of the world. Mining companies increasingly treat these natural ores to extract
iron and other minerals and produce slags or synthetic rutiles with higher TiO2
concentrations, resulting in lower rates of waste by-products during the TiO2
production process. Ores are shipped by bulk carriers from terminals in the
country of origin to TiO2 production plants, usually located near port
facilities. Millennium Inorganic Chemicals obtains ores from a number of
suppliers in South Africa, Australia, Canada and Norway, generally pursuant to
one- to eight-year supply contracts. Rio Tinto Iron & Titanium Inc. (through its
affiliates Richards Bay Iron & Titanium (Proprietary) Limited and QIT-Fer et
Titane Inc.) and RGC Mineral Sands Limited are the world's largest producers of
titanium ores and upgraded titaniferous raw materials and accounted for
approximately 86% of the titanium ores and upgraded titaniferous raw materials
purchased by Millennium Inorganic Chemicals in 1998.
 
     Other major raw materials used in the production of TiO2 are chlorine,
caustic soda, petroleum and metallurgical coke, aluminum, sodium silicate,
sulfuric acid, oxygen, nitrogen, natural gas and electricity. The number of
sources for and availability of these materials is specific to the particular
geographic region in which the facility is located. For Millennium Inorganic
Chemicals' Australian plant, chlorine and caustic soda are obtained exclusively
from one supplier under a long-term supply agreement. Millennium Inorganic
Chemicals has experienced tightness in various raw material markets, but not to
an extent requiring curtailed production. There are certain risks related to the
utilization of raw materials sourced from less-developed or developing
countries. At the present time, the market for chloride-process feedstock is
beginning to loosen due to additional new synthetic titanium ore capacity. A
number of Millennium Inorganic Chemicals' raw materials are provided by only a
few vendors and, accordingly, if one significant supplier or a number of
significant suppliers were unable to meet their obligations under present supply
arrangements, Millennium Inorganic Chemicals could suffer reduced supplies
and/or be forced to incur increased prices for its raw materials. Such an event
could have a material adverse effect on the Company's financial condition,
results of operations or cash flows.
 
     Of the total 582,000 metric tons of TiO2 sold by Millennium Inorganic
Chemicals in 1998 (including 32,000 metric tons of TiO2 sold by Millennium
Inorganic Chemicals' Brazilian plant from the date of its acquisition on July 1,
1998, to December 31, 1998), approximately 60% was sold to customers in the
paint and coatings industry, approximately 19% to customers in the plastics
industry, approximately 16% to customers in the paper industry and approximately
5% to other customers. Millennium Inorganic Chemicals' ten largest customers
accounted for approximately 30% of its TiO2 sales in 1998. Millennium Inorganic
Chemicals experiences some seasonality in its sales because its customers' sales
of paints and coatings are greatest in the spring and summer months.
 
     TiO2 is sold either directly by Millennium Inorganic Chemicals to its
customers or, to a lesser extent, through agents or distributors. TiO2 is
distributed by rail, truck and ocean carrier in either dry or slurry form.
 
     The global markets in which the Company's TiO2 business operates are all
highly competitive. Millennium Inorganic Chemicals competes primarily on the
basis of price, product quality and service. Certain of Millennium Inorganic
Chemicals' competitors are partially vertically integrated, producing
titanium-bearing ores as well as TiO2. Millennium Inorganic Chemicals is
vertically integrated at its Brazilian facility, which owns a titanium ore mine
that supplies the facility. Millennium Inorganic Chemicals' major competitors
are E.I. du Pont de Nemours and Company ('Dupont'); Tioxide Group Limited
('Tioxide'), a unit of Imperial Chemical Industries PLC ('ICI'); Kronos, Inc.
('Kronos'), a unit of NL Industries Inc.; Kemira Pigments Oy ('Kemira'), a unit
of Kemira Oy; and, Kerr-McGee Chemical Corporation (both directly and through
various joint ventures) ('Kerr-McGee Chemicals'), a unit of Kerr-McGee
Corporation. DuPont, Tioxide, Millennium Inorganic Chemicals, Kronos, Kemira and
Kerr-McGee Chemicals, collectively, account for approximately three-quarters of
the world's production capacity. Kerr-McGee Chemicals and Bayer AG Group
('Bayer') have formed a joint venture business owned 80% by Kerr-McGee Chemicals
and 20% by Bayer to operate Bayer's European TiO2 business.
 
     TiO2 competes with other whitening agents which are generally less
effective but less expensive. Paper manufacturers have, in recent years,
developed alternative technologies which reduce the amount
 
                                       9
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<PAGE>
of TiO2 used in paper. For example, kaolin and precipitated calcium carbonate
are used extensively as fillers by paper manufacturers in medium-and
lower-priced products.
 
     New plant capacity additions in the TiO2 industry are slow to develop
because of the substantial capital expenditure and the significant lead time
(three to five years typically for a new plant) needed for planning, obtaining
environmental approvals and permits, construction of manufacturing facilities
and arranging for raw material supplies. Debottlenecking and other capacity
expansions at existing plants require substantially less time and capital and
can increase overall industry capacity.
 
RELATED PRODUCTS
 
     Titanium Tetrachloride. Millennium Inorganic Chemicals manufactures a
metallurgical grade of TiCl4 at its Ashtabula, Ohio, plant, primarily for sale
to U.S. titanium metal producers. TiCl4 is produced at Ashtabula as an
intermediate product in the chloride process used for manufacturing TiO2.
Millennium Inorganic Chemicals also manufactures TiCl4 at its Thann, Alsace,
France, facility, primarily for sales to third parties in Europe for use in
catalysts and pharmaceuticals and for use by Millennium Inorganic Chemicals and
others in the sulfate-process manufacturing of TiO2 in Europe. Millennium
Inorganic Chemicals is the largest merchant seller of TiCl4 in the U.S. and
Europe.
 
     The majority of the Company's U.S. TiCl4 sales consist of metallurgical
grade product sold to titanium sponge producers who convert the product into
titanium metal. Other customers use TiCl4 to produce catalysts for chemical
processes and pearlescent pigments for metallic coatings and cosmetics. Sales
are almost exclusively to customers in the U.S. and Europe. TiCl4 is distributed
by rail and truck as anhydrous TiCl4 and as titanium oxychloride (an aqueous
solution of TiCl4).
 
     Specialty Inorganic Chemical Products: The Company's plant in France at
Thann, Alsace, produces zirconium-based compounds and specialty TiO2 products.
These products are marketed globally for various applications. Zirconium-based
compounds are used as a coloring agent for ceramics, in pigment surface
treatment and to enhance optics. Specialty TiO2 products are used in
environmental applications to eliminate nitrogen oxides from power plant
emissions and for sulfur removal in diesel engine exhaust. Micropure TiO2 is
used in the treatment of glass, primarily to enhance the optical properties of
spectacles. Electronic applications make use of these materials' ultra-purity to
miniaturize components in automotive, telephone and television applications.
 
                           MILLENNIUM PETROCHEMICALS
 
     The following table sets forth information concerning the annual production
capacity, as of the date of this report, of Millennium Petrochemicals' principal
products:
 
                   MILLENNIUM PETROCHEMICALS' RATED CAPACITY
                         (MILLIONS OF POUNDS PER ANNUM)
 
<TABLE>
<CAPTION>
                            PRODUCT                                CAPACITY
- ----------------------------------------------------------------   --------
<S>                                                                <C>
Acetic Acid.....................................................     1,000
VAM.............................................................       800
</TABLE>
 
     In addition, Millennium Petrochemicals owns an 85% interest in La Porte
Methanol Company, which owns a methanol plant with an annual production capacity
of 207 million gallons per annum. For a description of the plant and La Porte
Methanol Company, see 'La Porte Methanol Company,' below.
 
ACETIC ACID
 
     Millennium Petrochemicals is the second-largest U.S. producer of acetic
acid, and the third-largest producer worldwide, based on reported production
capacities. Its acetic acid plant is located at La Porte, Texas, and has an
annual production capacity as of December 31, 1998, of one billion pounds,
increased from 900 million pounds during 1998. Millennium Petrochemicals uses
approximately 60% of its acetic acid production internally to produce VAM at La
Porte.
 
                                       10
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<PAGE>
     The principal raw materials for the production of acetic acid are carbon
monoxide and methanol. Millennium Petrochemicals purchases all of its carbon
monoxide from Linde pursuant to a long-term contract based primarily on cost of
production. Linde produces this carbon monoxide at the syngas plant leased by
Linde from Millennium Petrochemicals pursuant to a long-term lease that
commenced on January 18, 1999. La Porte Methanol Company, 85% owned by the
Company, supplies all of Millennium Petrochemical's requirements for methanol.
(See 'La Porte Methanol Company,' below.)
 
     The process technology used by Millennium Petrochemicals to produce acetic
acid was originally licensed from Monsanto Company, and is now owned by British
Petroleum Company P.L.C. ('British Petroleum'). Since inception of the license,
Millennium Petrochemicals has developed and implemented technological changes
(including the proprietary low-water technology implemented in 1998) to expand
production capacity by approximately two-thirds.
 
     Acetic acid not consumed internally by Millennium Petrochemicals is sold
predominantly under contract. These contracts range in term from one to four
years. Export sales constituted approximately 20% of total acetic acid sales in
1998. Acetic acid is shipped by ocean-going vessel, barge, tank car and tank
truck.
 
     Millennium Petrochemicals' principal competitors in the acetic acid
business are Hoechst-Celanese, a unit of Hoechst Aktiengesellschaft
('Hoechst-Celanese'); British Petroleum; Kyodo Sakusan and Acetex Chemie S.A., a
subsidiary of Acetex Corporation ('Acetex').
 
VAM
 
     Millennium Petrochemicals is the second-largest U.S. producer of VAM, and
the third-largest producer worldwide, based on reported production capacities.
Its VAM plant is located at La Porte, Texas, and has an annual production
capacity of 800 million pounds as of December 31, 1998.
 
     The principal raw materials for the production of VAM are acetic acid and
ethylene. Millennium Petrochemicals supplies its entire requirements for acetic
acid from its internal production and buys all of its ethylene requirements from
Equistar under a long-term supply contract based on market prices.
 
     The process used by Millennium Petrochemicals to produce VAM is proprietary
to the Company.
 
     Millennium Petrochemicals sells VAM under contracts that range in term from
one to four years, as well as on a spot basis. Millennium Petrochemicals also
sells VAM to Equistar pursuant to a long-term contract at a formula-based price.
The majority of sales are completed under contract. Millennium Petrochemicals
ships this product by barge, ocean-going vessel, pipeline, tank car and tank
truck. Export sales represented approximately 25% of total VAM sales in 1998.
Millennium Petrochemicals has bulk storage arrangements for VAM in the
Netherlands, the U.K., Italy, Turkey, South Africa, Indonesia, Singapore and
Korea, to better serve its customers' requirements in those regions.
 
     Millennium Petrochemicals' principal competitors in the VAM business are
Hoechst-Celanese, British Petroleum, Union Carbide Corporation, Gantrade
Corporation, Acetex and Dairen Chemical Corporation.
 
                         MILLENNIUM SPECIALTY CHEMICALS
 
TERPENE FRAGRANCE CHEMICALS
 
     Millennium Specialty Chemicals is one of the world's leading producers of
chemicals derived from crude sulfate turpentine ('CST'), a by-product of the
kraft process of papermaking, and is the largest purchaser and distiller of CST
in the world. Millennium Specialty Chemicals' primary turpentine-based products
are intermediate fragrance chemicals, such as linalool and geraniol, which are
used in fragrance compounds and also provide the starting point for the
production of a number of other fragrance ingredients. In addition, Millennium
Specialty Chemicals supplies chemicals for use as flavors and in a number of
other industrial applications.
 
     Millennium Specialty Chemicals operates manufacturing facilities for its
fragrance chemicals in Jacksonville, Florida, and Brunswick, Georgia. The
Jacksonville site has facilities for the fractionation of turpentine into alpha-
and beta-pinene, sophisticated equipment to further upgrade fragrance chemical
 
                                       11
 <PAGE>
<PAGE>
products, as well as manufacturing facilities for synthetic pine oil, anethole,
methyl chavicol and a number of other fragrance and flavor chemicals. The
Brunswick site produces linalool and geraniol from the alpha-pinene component of
CST, utilizing a proprietary and, the Company believes, unique technology. The
Company believes that this technology provides Millennium Specialty Chemicals
with a significant advantage in raw material availability and quality. The
Company's technology also has significant environmental advantages. Linalool and
geraniol produced at the Brunswick site are further processed at the
Jacksonville site to produce fragrance chemicals, including citral, citronellol
and pseudoionone. In addition, Millennium Specialty Chemicals operates the
world's largest dihydromyrcenol facility at Brunswick, with a rated annual
capacity of over five million pounds. In 1998, Millennium Specialty Chemicals
expanded its linalool and geraniol production capacities and began to utilize a
crystallization process to make anethole. This process has improved product
quality and lowered production costs. In addition, Millennium Specialty
Chemicals implemented the SAP software system at its sites in November 1998.
 
     CST, which is Millennium Specialty Chemicals' key raw material for
producing fragrance chemicals, is a by-product of the kraft pulping process.
Millennium Specialty Chemicals purchases CST from approximately 50 pulp mills in
North America. Additionally, Millennium Specialty Chemicals purchases quantities
of gum turpentine or its derivatives from Asia, Europe and South America, as
business conditions dictate.
 
     Millennium Specialty Chemicals has experienced tightness in CST supply from
time to time, together with corresponding price increases. Generally, Millennium
Specialty Chemicals seeks to enter into long-term supply contracts with pulp
mills in order to ensure a stable supply of CST. The sale of CST generates
relatively insignificant revenues and profits for the pulp mills that serve as
Millennium Specialty Chemicals' principal suppliers. Accordingly, Millennium
Specialty Chemicals attempts to work closely and cooperatively with its
suppliers and provides them with incentives to produce more CST. For example,
Millennium Specialty Chemicals employs two full-time employees whose sole
responsibility is to work with pulp mills to recover CST more efficiently and
economically.
 
     Fragrance chemicals are used primarily in the production of perfumes. The
major consumers of perfumes worldwide are soap and detergent manufacturers.
Millennium Specialty Chemicals sells directly worldwide to major soap, detergent
and fabric conditioner manufacturers and fragrance compounders and, to a lesser
extent, producers of cosmetics and toiletries. Approximately 89% of Millennium
Specialty Chemicals' 1998 terpene fragrance chemical sales were to the fragrance
chemicals market, with additional sales to the pine oil cleaner and disinfectant
markets. Approximately 67% of Millennium Specialty Chemicals' 1998 terpene
fragrance chemical sales were made outside the U.S., to approximately 50
different countries. Sales are made primarily through Millennium Specialty
Chemicals' direct sales force, while agents and distributors are used in
outlying areas where volume does not justify full-time sales coverage.
 
     The markets in which Millennium Specialty Chemicals' terpene fragrance
business competes are highly competitive. Millennium Specialty Chemicals
competes primarily on the basis of quality, service and the ability to conform
its products to the technical and qualitative requirements of its customers.
Millennium Specialty Chemicals works closely with many of its customers in
developing products to satisfy their specific requirements. Millennium Specialty
Chemicals' supply agreements with customers are typically short-term in duration
(up to one year). Therefore, its business is substantially dependent on
long-term customer relationships based upon quality, innovation and customer
service. Customers from time to time change the formulations of an end product
in which one of Millennium Specialty Chemicals' fragrance chemicals is used,
which may affect demand for such fragrance chemicals. Millennium Specialty
Chemicals' ten largest terpene chemical customers accounted for approximately
57% of its total sales in 1998. Millennium Specialty Chemicals' major
competitors are BASF AG, Hoffman-LaRoche Inc., Kuraray Co. LTD and Bush Boake
Allen Inc.
 
SILICA GEL
 
     Millennium Specialty Chemicals produces several grades of fine-particle
silica gel at the St. Helena plant in Baltimore, Maryland, and markets them
internationally. Fine-particle silica gel is a chemically and biologically inert
form of silica with a particle size ranging from three to ten microns.
 
                                       12
 <PAGE>
<PAGE>
     The Company's SiLCRON'r' brand of fine-particle silica is used in coatings
as a flatting or matting (gloss reduction) agent and to provide mar-resistance.
SiLCRON'r' is also used in food and pharmaceutical applications. SiL-PROOF'r'
grades of fine-particle silica gel are chill-proofing agents used to stabilize
chilled beer and prevent clouding. Fine-particle silica is distributed in dry
form in palletized bags by truck and ocean carrier.
 
CADMIUM-BASED PIGMENTS
 
     Millennium Specialty Chemicals manufactures a line of cadmium-selenium
based colored pigments at the St. Helena, Maryland, plant and markets them
internationally. In addition to their brilliance, cadmium colors are light and
heat stable. These properties promote their use in such applications as artists'
colors, plastics and glass colors. Due to concern for the toxicity of heavy
metals, including cadmium, Millennium Specialty Chemicals has introduced
low-leaching cadmium-based pigments that meet all U.S. government requirements
for landfill disposal of non-hazardous waste. Colored pigments are distributed
in dry form in drums by truck and ocean carrier.
 
                            RESEARCH AND DEVELOPMENT
 
     The Company's expenditures for research and development totaled $21
million, $28 million and $39 million in 1998, 1997 and 1996, respectively.
Research and development expenditures at Millennium Petrochemicals decreased by
approximately $14 million in 1998 as compared to 1997 as a result of the
transfer of the polyethylene, alcohol and related products segment to Equistar
on December 1, 1997. Research and development expenditures at Millenium
Inorganic Chemicals increased by approximately $7 million from 1997 to 1998 due
to the French and Brazilian acquisitions and additional research and development
projects. Millennium Inorganic Chemicals has research facilities in Baltimore,
Maryland; Stallingborough, U.K.; and, Bunbury, Western Australia. In addition,
Millennium Inorganic Chemicals is building a new $18 million research center
near Baltimore, Maryland, which is scheduled to be officially opened in
September 1999. Millennium Specialty Chemicals has research facilities in
Jacksonville, Florida, and Baltimore (St. Helena), Maryland. Millennium
Petrochemicals leases laboratory space from Equistar in Cincinnati, Ohio. The
Company's research efforts are principally focused on improvements in process
technology, product development, technical service to customers, applications
research and product quality enhancements.
 
                             INTERNATIONAL EXPOSURE
 
     The Company generates revenue from export sales (i.e., U.S.
dollar-denominated sales outside the U.S. by domestic operations), as well as
revenue from the Company's operations conducted outside the U.S. Export sales,
which are made to over 70 countries, amounted to approximately 10%, 9% and 9% of
total revenues in 1998, 1997 and 1996, respectively. Revenue from non-U.S.
operations amounted to approximately 38%, 12% and 11% of total revenues in 1998,
1997 and 1996, respectively, principally reflecting the operations of Millennium
Inorganic Chemicals in the U.K. and Western Australia and the addition of the
French operations on December 31, 1997, and the Brazilian operations on July 1,
1998. Identifiable assets of the non-U.S. operations represented 24% and 17% of
total identifiable assets at December 31, 1998 and 1997, respectively,
principally reflecting the assets of these operations. In addition, the Company
obtains a portion of its principal raw materials from sources outside the U.S.
Millennium Inorganic Chemicals obtains ores used in the production of TiO2 under
long-term contracts from a number of suppliers in South Africa, Australia,
Canada and Norway. Millennium Specialty Chemicals obtains a portion of its
requirements of CST and gum turpentine and its derivatives from suppliers in
Indonesia and other Asian countries, Europe and South America.
 
     The Company's export sales and its non-U.S. manufacturing and sourcing are
subject to the usual risks of doing business abroad, such as fluctuations in
currency exchange rates, transportation delays and interruptions, political and
economic instability and disruptions, restrictions on the transfer of funds, the
imposition of duties and tariffs, import and export controls and changes in
governmental policies. The Company's exposure to the risks associated with doing
business abroad will increase as the
 
                                       13
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<PAGE>
Company expands its worldwide operations. From time to time, the Company
utilizes financial derivative instruments to hedge the impact of currency
fluctuations in its purchases and sales.
 
     The functional currency of each of the Company's non-U.S. operations
(principally, the operations of Millennium Inorganic Chemicals in the U.K.,
France, Brazil and Australia) is the local currency. Historically, the net
impact of currency translation has not been material to the Company's
consolidated results of operations or financial position. The recent
developments in Brazil regarding the devaluation of its currency, the real, are
not expected to have a material result on the Company's consolidated operations
since approximately two-thirds of its Brazilian sales are referenced to a
percentage of U.S. dollar prices. However, as a result of translating the
functional currency financial statements into U.S. dollars, consolidated
Shareholders' equity would decrease approximately $44 million as a result of
this devaluation, using the March 15, 1999 exchange rate. Future events, which
may significantly increase or decrease the risk of future movement in the real,
cannot be predicted.
 
                          EQUITY INTEREST IN EQUISTAR
 
     Through its 29.5% interest in Equistar, the Company is a partner in the
largest producer of ethylene and polyethylene in North America, and a leading
producer of performance polymers, oxygenated chemicals, aromatics and specialty
chemicals. Equistar commenced operations on December 1, 1997, when the Company
contributed substantially all of the assets comprising its polyethylene, alcohol
and related products segment to Equistar and Lyondell contributed substantially
all the assets comprising its petrochemical and polymer business segments to
Equistar. On May 15, 1998, the Company and Lyondell expanded Equistar with the
addition of the ethylene, propylene, ethylene oxide, ethylene glycol and other
ethylene oxide derivatives businesses of Occidental's chemicals subsidiary.
 
     Equistar is functionally divided into two business units, petrochemicals
and polymers. Equistar's petrochemical business unit manufactures and markets
oxygenated chemicals, olefins, aromatics and specialty chemicals, which are used
primarily in the manufacture of other chemicals and products, including the
production of polymers by Equistar and its customers. Equistar's primary olefin
products are ethylene, propylene and butadiene, which are used to produce
polyethylene, polypropylene, rubber and many other chemical and polymer
products. Its oxygenated chemicals include ethylene oxide, ethylene glycol,
ethanol and MTBE. Its aromatic products include benzene, which is used in the
production of nylon and polystyrene plastics, and toluene, which is used as a
component in gasoline and as a feedstock for producing benzene. Equistar's
specialty chemical products include dicyclopentadiene, isoprene, resin oil and
piperylenes, which are used to make adhesives, sealants and inks.
 
     Equistar's polymer business unit manufactures and markets polyolefins,
including polyethylene, polypropylene and performance polymers, all of which are
used in the production of a wide variety of consumer and industrial products.
Equistar produces high density polyethylene ('HDPE'), low density polyethylene
('LDPE'), linear low density polyethylene ('LLDPE') and polypropylene.
Equistar's performance polymers include enhanced grades of polypropylene and
polyethylene, including wire and cable resins, concentrates and compounds and
polymeric powders.
 
MANAGEMENT OF EQUISTAR; AGREEMENTS BETWEEN EQUISTAR, LYONDELL, OCCIDENTAL AND
THE COMPANY
 
     Equistar is a Delaware limited partnership. Millennium Petrochemicals owns
its 29.5% interest in Equistar through two wholly owned subsidiaries, one of
which serves as a general partner of Equistar and one of which serves as a
limited partner. The Amended and Restated Partnership Agreement of Equistar (the
'Equistar Partnership Agreement') governs, among other things, ownership, cash
distributions, capital contributions and management of Equistar.
 
     The Equistar Partnership Agreement provides that Equistar is governed by a
Partnership Governance Committee consisting of nine representatives, three
appointed by each general partner. Matters requiring agreement by the
representatives of Lyondell, Occidental and Millennium Petrochemicals include
changes in the scope of Equistar's business, approval of the five-year Strategic
Plan (and annual updates thereof), the sale or purchase of assets or capital
expenditures of more than $30 million not contemplated by an approved Strategic
Plan, additional investments by Equistar's
 
                                       14
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<PAGE>
partners not contemplated by an approved Strategic Plan if the partners are
required to contribute more than a total of $100 million in a specific year or
$300 million in a five-year period (except in specific circumstances set forth
under the Equistar Partnership Agreement), borrowing money under certain
circumstances, issuing or repurchasing equity securities of Equistar, hiring and
firing executive officers of Equistar (other than Equistar's Chief Executive
Officer), approving material compensation and benefit plans for employees,
commencing and settling material lawsuits, selecting or changing accountants or
accounting methods and merging or combining with another business. All decisions
of the Partnership Governance Committee that do not require consent of the
representatives of Lyondell, Occidental and Millennium Petrochemicals (including
approval of Equistar's annual budget, which must be consistent with the most
recently approved Strategic Plan, and selection of Equistar's Chief Executive
Officer, who must be reasonably acceptable to Millennium Petrochemicals and
Occidental) may be made by Lyondell's representatives alone. The day-to-day
operations of Equistar are managed by the executive officers of Equistar. Dan F.
Smith, the Chief Executive Officer of Lyondell, also serves as the Chief
Executive Officer of Equistar.
 
     Millennium Petrochemicals and Equistar entered into an agreement on
December 1, 1997, providing for the transfer of assets to Equistar. Among other
things, such agreement sets forth representations and warranties by Millennium
Petrochemicals with respect to the transferred assets and requires
indemnification by Millennium Petrochemicals with respect to such assets. Such
agreement also provides for the assumption of certain liabilities by Equistar,
subject to specified limitations. Lyondell and affiliates of Occidental entered
into a similar agreements with Equistar with respect to the transfer of their
respective assets and Equistar's assumption of liabilities.
 
     Equistar is party to a number of agreements with Millennium Petrochemicals
for the provision of services, utilities and materials from one party to the
other at common locations, principally La Porte, Texas, and Cincinnati, Ohio. In
general, the goods and services under these agreements, other than the purchase
of ethylene by Millennium Petrochemicals from Equistar and the purchase of VAM
by Equistar from Millennium Petrochemicals, are provided at cost. Millennium
Petrochemicals purchases its ethylene requirements at market-based prices from
Equistar pursuant to a long-term contract. Equistar purchases its VAM
requirements from Millennium Petrochemicals at a formula-based price pursuant to
a long-term contract. Lyondell and affiliates of Occidental also entered into
agreements with Equistar for the provision of services. The Company, Lyondell
and an affiliate of Occidental have agreed to guarantee the obligations of their
respective subsidiaries under each of the agreements discussed above, including
the Equistar Partnership Agreement and the asset-transfer agreements.
 
EQUISTAR'S PETROCHEMICAL BUSINESS UNIT
 
     Overview: Equistar produces petrochemicals at twelve facilities located in
six states. The Chocolate Bayou, Corpus Christi and two Channelview, Texas,
olefin plants primarily use petroleum liquid feedstocks, including naphtha,
condensates and gas oils (collectively, 'Petroleum Liquids'), to produce
ethylene. The cost of ethylene production from Petroleum Liquids historically
has been less than the cost of producing ethylene from natural gas liquid
feedstocks, including ethane, propane and butane (collectively, 'NGLs'). The use
of Petroleum Liquids results in the production of a significant amount of
co-products such as propylene, butadiene, benzene and toluene, and specialty
products such as dicyclopentadiene, isoprene, resin oil, piperylenes, hydrogen
and alkylate.
 
     Equistar's Morris, Illinois; Clinton, Iowa; Lake Charles, Louisiana; and,
La Porte, Texas, plants are designed to use primarily NGLs which produce
primarily ethylene with some co-products, such as propylene. The La Porte plant
has recently been modified to allow for partial use of Petroleum Liquid
feedstocks. A comprehensive pipeline system connects the Gulf Coast plants with
major olefins customers. Feedstocks are sourced both internationally and
domestically and are shipped via vessel and pipeline.
 
     Equistar produces ethylene oxide and its primary derivative, ethylene
glycol, at facilities located at Pasadena, Texas, and through a joint venture
located in Beaumont, Texas, that is 50% owned by Equistar and 50% owned by
DuPont. The Pasadena facility also produces other ethylene oxide derivatives,
principally ethers and ethanolamine. Ethylene glycol is used in antifreeze and
in polyester fibers, resins and films. The other ethylene oxide derivatives are
used in many consumer and industrial
 
                                       15
 <PAGE>
<PAGE>
end uses, such as detergents and surfactants, brake fluids and polyurethane
foams for seating and bedding.
 
     Equistar produces synthetic ethyl alcohol at its Tuscola, Illinois, plant
by a direct hydration process that combines water and ethylene. Equistar also
owns and operates facilities in Newark, New Jersey, and Anaheim, California, for
denaturing ethyl alcohol by the addition of certain chemicals. In addition, it
produces small volumes of diethyl ether, a by-product of its ethyl alcohol
production at Tuscola. These ethyl alcohol products are ingredients in various
consumer and industrial products as described more fully in the table below.
 
     The following table outlines Equistar's primary petrochemical products,
annual rated capacity and the primary uses for such products.
 
<TABLE>
<CAPTION>
                                        RATED
          PRODUCT                    CAPACITY(A)                               PRIMARY USES
- ---------------------------  ---------------------------  ------------------------------------------------------
<S>                          <C>                          <C>
Olefins:
     Ethylene..............  11.5 billion pounds          Ethylene is used as a feedstock to manufacture
                                                          polyethylene, ethylene oxide, ethylene dichloride, VAM
                                                          and ethylbenzene.
     Propylene.............  5.0 billion                  Propylene is used to produce polypropylene,
                             pounds(b)                    acrylonitrile and propylene oxide.
     Butadiene.............  1.2 billion pounds           Butadiene is used to manufacture styrene butadiene
                                                          rubber and polybutadiene rubber, which are used in the
                                                          manufacture of tires, hoses, gaskets and other rubber
                                                          products. Butadiene is also used in the production of
                                                          paints, adhesives, nylon clothing, carpets and
                                                          engineered plastics.
Oxygenated Products:
     Ethylene oxide
       ('EO') and
       equivalents
       ('EOE').............  1.1 billion pounds EOE; 400  EO is used to produce surfactants, industrial
                             million pounds as pure EO    cleaners, cosmetics, emulsifiers, paint, heat transfer
                                                          fluids and ethylene glycol.
     Ethylene glycol.......  1 billion pounds             Ethylene glycol is used to produce polyester fibers
                                                          and film, PET resin, heat transfer fluids, paint and
                                                          automobile antifreeze.
     Ethylene oxide
       derivatives.........  225 million pounds           Ethylene oxide derivatives are used to produce paint
                                                          and coatings, polishes, solvents and chemical
                                                          intermediates.
     MTBE..................  284 million gallons          MTBE is an octane enhancer and clean fuel additive in
                             (18,500 barrels/day)(c)      reformulated gasoline.
Aromatics:
     Benzene...............  301 million gallons          Benzene is used to produce styrene, phenol and
                                                          cyclohexane. These products are used in the production
                                                          of nylon, plastics, rubber and polystyrene.
                                                          Polystyrene is used in life preservers, food packaging
                                                          and drinking cups.
     Toluene...............  66 million gallons           Toluene is used as an octane enhancer in gasoline and
                                                          as a chemical feedstock for benzene production.
</TABLE>
 
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                                       16
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<PAGE>
(table continued from previous page)
 
<TABLE>
<CAPTION>
                                        RATED
          PRODUCT                    CAPACITY(A)                               PRIMARY USES
- ---------------------------  ---------------------------  ------------------------------------------------------
<S>                          <C>                          <C>
Specialty Products:
     Dicyclopentadiene
       ('DCPD')............  80 million pounds            DCPD is a component of inks, adhesives and polyester
                                                          resins for molded parts such as tub and shower stalls
                                                          and boat hulls.
     Isoprene..............  105 million pounds           Isoprene is a component of premium tires, adhesive
                                                          sealants and other rubber products.
     Resin oil.............  120 million pounds           Resin oil is used in the production of
                                                          hot-melt-adhesives, inks, sealants, paints and
                                                          varnishes.
     Piperylenes...........  100 million pounds           Piperylenes are used in the production of adhesives,
                                                          inks and sealants.
     Hydrogen..............  44 billion cubic feet        Hydrogen is used by refineries to remove sulfur from
                                                          process gas in heavy crude oil.
     Alkylate..............  337 million gallons(d)       Alkylate is a premium blending component used by
                                                          refiners to meet Clean Air Act standards for
                                                          reformulated gasoline.
     Ethyl alcohol.........  50 million gallons           Ethyl alcohol is used in the production of solvents as
                                                          well as household, medicinal and personal care
                                                          products.
     Diethyl ether.........  5 million gallons            Diethyl ether is used in laboratory reagents, gasoline
                                                          and diesel engine starting fluid, liniments,
                                                          analgesics and smokeless gun powder.
</TABLE>
 
- ------------
 (a) Unless otherwise specified, represents rated capacity at January 1, 1999,
     as determined by Equistar's management. Capacities shown include 100% of
     the capacity of Equistar.
 
 (b) Does not include refinery grade material or production from the product
     flexibility unit at Equistar's Channelview, Texas, facility, which can
     convert ethylene and other light petrochemicals into propylene and has a
     current rated capacity of one billion pounds per year of propylene.
 
 (c) Includes up to 44 million gallons per year of capacity which is operated
     for the benefit of LYONDELL-CITGO Refining LP, a joint venture owned by
     Lyondell and CITGO Petroleum Corporation ('LCR').
 
 (d) Includes up to 172 million gallons per year of capacity which is operated
     for the benefit of LCR.
 
     Feedstocks: Olefin feedstock cost is generally the largest component of
total cost for the petrochemicals business. Olefin plants that have the
flexibility to consume a wide range of feedstocks generally are able to maintain
higher profitability during periods of changing energy and petrochemical prices
than olefin plants that are restricted in their feedstock processing capability.
Equistar's Channelview, Texas, facility is unusually flexible in that it can
process 100% Petroleum Liquids or up to 80% NGL feedstocks. The Corpus Christi
plant can process up to 70% Petroleum Liquids or up to 70% NGLs. The Chocolate
Bayou facility processes 100% Petroleum Liquids. Three of Equistar's four other
olefin facilities currently process only NGLs. Equistar has recently upgraded
the La Porte, Texas, facility to integrate the operations of the La Porte and
Channelview facilities to permit the La Porte facility to process 30% to 40%
Petroleum Liquids and the Channelview facility to process the co-products
resulting from the processing of Petroleum Liquids at La Porte.
 
     The majority of Equistar's Petroleum Liquid requirements are obtained under
contracts or on the spot market from a variety of third-party domestic and
foreign sources. Equistar purchases NGLs from a wide variety of domestic
sources. Equistar obtains a portion of its olefin feedstock requirements from
LCR at market-based prices.
 
                                       17
 <PAGE>
<PAGE>
     Marketing and Sales: Ethylene produced by the La Porte, Morris and Clinton
facilities is generally consumed as feedstock by the polymer operations at those
sites, except for the ethylene produced at La Porte and sold to Millennium
Petrochemicals for its VAM production. Ethylene and propylene produced at the
Channelview, Corpus Christi, Chocolate Bayou and Lake Charles olefin plants are
generally distributed by pipeline or via exchange agreements to Equistar's Gulf
Coast polymer and ethylene oxide facilities as well as to other third parties.
As of December 31, 1998, approximately 75% of the ethylene produced by Equistar
was consumed internally or sold to Equistar's affiliates based on current market
prices.
 
     With respect to sales to third parties, Equistar sells a majority of its
olefin products to customers with whom its partners have had long-standing
relationships. In any one of the past three years, no single unrelated
third-party customer has accounted for more than ten percent of the
petrochemical business unit's revenue. Sales to third parties generally are made
pursuant to written agreements which typically provide for monthly negotiation
of price. The contracts typically require the customer to purchase a specified
minimum quantity. Contract terms are typically three to six years, with
automatic one- or two-year term extension provisions. Some contracts are subject
to early termination if deliveries have been suspended for several months.
 
     Most of the ethylene and propylene production of the Channelview, Chocolate
Bayou, Corpus Christi and Lake Charles facilities is shipped via a 1,430-mile
pipeline system which has connections to numerous Gulf Coast ethylene and
propylene consumers. This pipeline system, part of which is owned and part of
which is leased by Equistar, extends from Corpus Christi to Mont Belvieu to Port
Arthur, Texas, as well as around the Lake Charles, Louisiana, area. In addition,
exchange agreements with other olefin producers allow access to customers who
are not directly connected to Equistar's pipeline system. Some propylene is
shipped by ocean-going vessel. Ethylene oxide and its derivatives are shipped by
railcar. Butadiene, aromatics and other petrochemicals are distributed by
pipeline, railcar, truck, barge and ocean-going vessel.
 
EQUISTAR'S POLYMER BUSINESS UNIT
 
     Overview: Through twelve facilities located in four states, Equistar's
polymer business unit manufactures a wide variety of polyolefins, including
polyethylene, polypropylene and various performance polymers.
 
     Equistar currently manufactures polyethylene using a variety of
technologies at six facilities in Texas and at its Morris, Illinois, and
Clinton, Iowa, facilities. The Morris and Clinton facilities are the only
polyethylene facilities located in the Midwest and enjoy a freight cost
advantage over Gulf Coast producers in delivering products to customers in the
Midwest and on the East Coast of the U.S.
 
     Equistar's Morris, Illinois, and Pasadena, Texas, facilities manufacture
polypropylene using propylene produced as a co-product of Equistar's ethylene
production as well as propylene purchased from third parties. Equistar also
produces performance polymer products, which include enhanced grades of
polyethylene and polypropylene, at several of its polymers facilities. Equistar
produces concentrates and compounds at its facilities in Crockett, Texas, and
Heath, Ohio. Concentrates and compounds are polyethylene compounds impregnated
with additives and/or pigments and sold to converters who mix the compounds with
larger volumes of polymers, including polyethylene, to produce various products.
Equistar has announced its intention to sell the concentrates and compounds
business. Equistar produces wire and cable resins and compounds at Morris,
Illinois; La Porte and Crockett, Texas; Tuscola, Illinois; and, Fairport Harbor,
Ohio. Wire and cable resins and compounds are used to insulate copper and fiber
optic wiring in power, telecommunication, computer and automobile applications.
 
                                       18
 <PAGE>
<PAGE>
     The following table outlines Equistar's polymer and performance polymer
products, annual rated capacity and the primary uses for such products:
 
<TABLE>
<CAPTION>
                                        RATED                                    PRIMARY
          PRODUCT                    CAPACITY(A)                                   USES
- ---------------------------  ---------------------------  ------------------------------------------------------
<S>                          <C>                          <C>
High density polyethylene
  ('HDPE').................  3.4  billion pounds(b)       HDPE is used to manufacture grocery, merchandise and
                                                          trash bags; food containers for items from frozen
                                                          desserts to margarine; plastic caps and closures;
                                                          liners for boxes of cereal and crackers; plastic drink
                                                          cups and toys; dairy crates; bread trays and pails for
                                                          items from paint to fresh fruits and vegetables;
                                                          safety equipment such as hard hats; house wrap for
                                                          insulation; bottles for household/industrial chemicals
                                                          and motor oil; milk/water/juice bottles; and, large
                                                          (rotomolded) tanks for storing liquids like
                                                          agricultural and lawn care chemicals.
Low density polyethylene
  ('LDPE').................  1.7  billion pounds          LDPE is used to manufacture food packaging films;
                                                          plastic bottles for packaging food and personal care
                                                          items; dry cleaning bags; ice bags; pallet shrink
                                                          wrap; heavy-duty bags for mulch and potting soil;
                                                          boil-in-bag bags; coatings on flexible packaging
                                                          products, and, coatings on paper board such as milk
                                                          cartons. Specialized forms of LDPE are Ethyl Methyl
                                                          Acrylate, which provides adhesion in a variety of
                                                          applications; and, Ethylene Vinyl Acetate, which is
                                                          used in foamed sheets, bag-in-box bags, vacuum cleaner
                                                          hoses, medical tubing, clear sheet protectors and
                                                          flexible binders.
Linear low density
  polyethylene ('LLDPE')...  1.1 billion pounds           LLDPE is used to manufacture garbage and lawn-leaf
                                                          bags; housewares; lids for coffee cans and margarine
                                                          tubs; and, large (rotomolded) toys like outdoor gym
                                                          sets.
Wire and cable resins and
  compounds................  (c)                          Wire and cable resins and compounds are used to
                                                          insulate copper and fiber optic wiring in power,
                                                          telecommunication, computer and automobile
                                                          applications.
Polymeric powders..........  (c)                          Polymeric powders are component products in structural
                                                          and bulk molding compounds, parting agents and filters
                                                          for appliance, automotive and plastics processing
                                                          industries.
</TABLE>
 
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                                       19
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<TABLE>
<CAPTION>
                                        RATED                                    PRIMARY
          PRODUCT                    CAPACITY(A)                                   USES
- ---------------------------  ---------------------------  ------------------------------------------------------
<S>                          <C>                          <C>
Concentrates and
  compounds................  150 million pounds           Concentrates and compounds provide color in film,
                                                          bottles and foam sheets; the 'slip' that keeps film
                                                          from sticking together; flame retardancy; resistance
                                                          to UV radiation; and, the 'gas bubbles' to make foamed
                                                          plastic products.
Polypropylene..............  680 million pounds           Polypropylene is used to manufacture fibers for
                                                          carpets, rugs and upholstery; housewares; automotive
                                                          battery cases; automotive fascia, running boards and
                                                          bumpers; grid-type flooring for sports facilities;
                                                          fishing tackle boxes; and, bottle caps and closures.
Polymers for adhesives,
  sealants and coatings....  (c)                          Polymers are components in hot-metal adhesive
                                                          formulations for case, carton and beverage package
                                                          sealing; glue sticks; automotive sealants; carpet
                                                          backing; and, adhesive labels.
Reactive polyolefins.......  (c)                          Reactive polyolefin, are functionalized polymers used
                                                          to bond non-polar and polar substrates in barrier food
                                                          packaging, wire and cable insulation and jacketing,
                                                          automotive gas tanks and metal coating applications.
Liquid polyolefins.........  (c)                          Liquid polyolefins are a diesel fuel additive to
                                                          inhibit freezing.
</TABLE>
 
- ------------
 (a) Unless otherwise specified, represents rated capacity at January 1, 1999.
     Capacities shown include 100% of the capacity of Equistar.
 
 (b) Equistar increased its HDPE capacity by approximately 125 million pounds in
     1998. The idling of a portion of the Port Arthur facility effective March
     31, 1999, will result in a decrease in the stated capacity by 300 million
     pounds at the end of the first quarter of 1999. A 480 million pound HDPE
     resin expansion project at the Matagorda facility has a targeted start-up
     in the third quarter of 1999.
 
 (c) These are enhanced grades of polyethylene and are included in the capacity
     figures for HDPE, LDPE and LLDPE, above, as appropriate.
 
     Feedstocks: With the exception of the Chocolate Bayou polyethylene plant,
Equistar's polyethylene and polypropylene production facilities can receive
their ethylene and propylene directly from Equistar's petrochemical facilities
via Equistar's olefin pipeline system or Equistar's own production at the site.
The polyethylene plants at Chocolate Bayou, La Porte, Port Arthur and Pasadena,
Texas, are pipeline-connected to third parties and can receive ethylene via
exchanges or purchases. The polypropylene facility at Morris, Illinois, also
receives propylene from a third party.
 
     Marketing and Sales: Equistar's polymer products are primarily sold to an
extensive base of established customers, many under term contracts, typically
having a duration of one to three years. The remainder is generally sold without
contractual term commitments. In either case, in most of the continuous supply
relationships, prices are subject to change upon mutual agreement between
Equistar and the customer.
 
     Polymers are primarily distributed via railcar. Equistar owns or leases,
pursuant to long-term lease arrangements, approximately 10,000 railcars for use
in its polymer business. Equistar sells its polymer products in the United
States primarily through its own sales organization. It generally engages sales
agents to market its products in the rest of the world.
 
                                       20
 <PAGE>
<PAGE>
                           LA PORTE METHANOL COMPANY
 
     The La Porte Methanol Company is a Delaware limited partnership that owns a
methanol plant and certain related facilities in La Porte, Texas. The
partnership is owned 85% by Millennium Petrochemicals and 15% by Linde. Linde is
also required to purchase, under certain circumstances, an additional 5%
interest in the partnership. A wholly-owned subsidiary of Millennium
Petrochemicals is the managing general partner of the partnership. A wholly
owned subsidiary of Linde is responsible for operating the methanol plant. The
partnership commenced operations on January 18, 1999, when the methanol plant
and certain related facilities owned by Millennium Petrochemicals were
contributed to the partnership and Linde purchased its partnership interest from
Millennium Petrochemicals.
 
     La Porte Methanol Company's methanol plant had an annual production
capacity of 207 million gallons as of December 31, 1998, and the same amount as
of the date of this Annual Report on Form 10-K. The plant employs a process
supplied by a major engineering and construction firm to produce methanol.
 
     Methanol is used primarily as a feedstock to produce acetic acid, MTBE and
formaldehyde. Millennium Petrochemicals uses approximately 80 million gallons of
La Porte Methanol Company's annual methanol production for the manufacture of
acetic acid at Millennium Petrochemicals' La Porte, Texas, acetic acid plant.
The methanol produced by La Porte Methanol Company which is not consumed by
Millennium Petrochemicals currently is marketed by Millennium Petrochemicals on
behalf of Millennium Petrochemicals and Linde. Methanol is sold under contract
as well as on a spot basis to large domestic customers. These contracts range in
term from one to four years. The product is shipped by barge.
 
     The principal raw materials for the production of methanol are carbon
monoxide and hydrogen, collectively termed synthesis gas or syngas. These raw
materials are largely supplied to La Porte Methanol Company from the syngas
plant at La Porte, Texas, owned by Millennium Petrochemicals and leased to Linde
pursuant to a long-term lease that commenced January 18, 1999. La Porte Methanol
Company also purchases relatively small volumes of hydrogen from time to time
from other parties. As a result primarily of the conversion of the syngas plant
from a residuum (heavy oil) feedstock to natural gas feedstock in late 1996, the
capacity of the methanol plant at La Porte increased from 140 million gallons to
207 million gallons per year and methanol production costs were reduced
substantially.
 
     La Porte Methanol Company's principal competitors in the methanol business
are Methanex Company, Saudi Basic Industries Corporation, Lyondell Methanol
Company, L.P., Borden, Inc. and Caribbean Petrochemical Marketing Company
Limited. The methanol produced by Lyondell Methanol Company, L.P. is marketed by
Equistar.
 
                      EQUITY INTEREST IN SUBURBAN PROPANE
 
     An indirect subsidiary of the Company serves as general partner of Suburban
Propane, a Delaware limited partnership whose common units trade on the New York
Stock Exchange under the symbol 'SPH.' In March 1996, in connection with its
initial public offering, Suburban Propane acquired, through an operating
partnership, the propane business and assets of Millennium Petrochemicals'
former Suburban Propane division.
 
     Suburban Propane is the third-largest retail marketer of propane in the
U.S., serving more than 700,000 active residential, commercial, industrial and
agricultural customers from more than 340 customer service centers in more than
40 states. Suburban Propane's operations are concentrated in the east and west
coast regions of the U.S. The retail propane sales volume of Suburban Propane
was approximately 530 million gallons during its fiscal year ended September 26,
1998. Based on industry statistics, Suburban Propane believes that its retail
propane sales volume constitutes approximately 6% of the U.S. retail market for
propane. For its fiscal year ended September 26, 1998, Suburban Propane reported
total revenues of approximately $667 million and net income of approximately $38
million. At September 26, 1998, Suburban Propane reported total assets of
approximately $730 million. For the three months ended December 26, 1998,
Suburban Propane reported total revenues of approximately $161 million and net
income of approximately $16 million.
 
     The Company has a 2% general partnership interest and a 24.4% subordinated
limited partnership interest, each on a combined basis, in Suburban Propane and
the operating partnership. Under the
 
                                       21
 <PAGE>
<PAGE>
partnership agreement governing Suburban Propane, Suburban Propane is managed
by, or under the direction of, a seven-member Board of Supervisors. Two of the
supervisors are appointed by the general partner; the holders of the limited
partnership interests and subordinated limited partnership interests, voting as
a class, elect three of the supervisors; and these five supervisors elect two
executive officers of Suburban Propane as the remaining two supervisors. The
Company agreed, subject to certain limitations, to contribute up to $43.6
million, on a revolving basis, to Suburban Propane to enhance its ability to
make quarterly cash distributions to its limited partners through the quarter
ending March 31, 2001. To date, the Company has contributed $22 million of the
aforementioned $43.6 million to support distribution payments to the limited
partners of Suburban Propane. Suburban Propane paid a distribution of $0.50 per
common unit for the quarter ended June 29, 1996, and for each quarter
thereafter, but, commencing with the quarter ended December 28, 1996, has not
paid a distribution with respect to the subordinated limited partnership units
held by the Company.
 
     On November 27, 1998, the Company signed definitive agreements to sell its
general partnership interests in Suburban Propane and its operating partnership
to Suburban Energy Services Group LLC, an entity formed by Suburban Propane's
management. In addition, as part of a recapitalization of Suburban Propane,
Suburban Propane agreed to redeem the Company's limited partnership interests in
Suburban Propane and its operating partnership. Total cash proceeds to the
Company will be $75 million. Upon the closing of such transactions, which is
expected in the second quarter of 1999, the Company will be relieved of its
obligations to make contributions to Suburban Propane, as discussed in the
preceding paragraph. The Company accounts for its interest in Suburban Propane
as a discontinued operation.
 
                                   EMPLOYEES
 
     At December 31, 1998, excluding employees of Equistar, Suburban Propane and
La Porte Methanol Company, the Company had approximately 5,300 full and
part-time employees and contractors, including approximately 1,200 employees of
Tibras, which was acquired by the Company on July 1, 1998. Approximately 4,350
of the Company's employees and contractors were engaged in manufacturing; 600
were engaged in sales, distribution and technology; 285 were engaged in
administrative, executive and support functions at the Company's operating
subsidiaries; and, 65 were engaged at the corporate level. Approximately 28% of
the Company's employees are represented by various labor unions. Of the
Company's nine collective bargaining agreements or other required labor
negotiations, four must be renegotiated on an annual basis, four must be
renegotiated in 2000 and one must be renegotiated in 2001. The annual
renegotiations are all outside the U.S. The Company believes that the relations
of its operating subsidiaries with employees and unions are generally good.
 
                             ENVIRONMENTAL MATTERS
 
     The Company's businesses are subject to extensive federal, state, local and
foreign laws, regulations, rules and ordinances concerning, among other things,
emissions to the air, discharges and releases to land and water, the generation,
handling, storage, transportation, treatment and disposal of wastes and other
materials and the remediation of environmental pollution caused by releases of
wastes and other materials ('Environmental Laws'). The operation of any chemical
manufacturing plant and the distribution of chemical products entail risks under
Environmental Laws, many of which provide for substantial fines and criminal
sanctions for violations. There can be no assurance that material costs or
liabilities will not be incurred with respect to such operations and activities.
In particular, the production of TiO2, TiCl4, methanol and certain other
chemicals involves the handling, manufacture or use of substances or compounds
that may be considered to be toxic or hazardous within the meaning of certain
Environmental Laws, and certain operations have the potential to cause
environmental or other damage. Potentially significant expenditures could be
required in connection with the repair or upgrade of facilities in order to meet
existing or new requirements under Environmental Laws as well as in connection
with the investigation and remediation of threatened or actual pollution.
 
     The Company's costs and operating expenses relating to environmental
matters were approximately $29 million, $57 million and $62 million in 1998,
1997 and 1996, respectively. These amounts cover, among other things, the
Company's cost of complying with environmental regulations and permit
conditions, as well as managing and minimizing its waste. Capital expenditures
for environmental
 
                                       22
 <PAGE>
<PAGE>
compliance and remediation were approximately $8 million, $13 million and $22
million in 1998, 1997 and 1996, respectively. In addition, capital expenditures
for projects in the normal course of operations and major expansions include
costs associated with the environmental impact of those projects which are
inseparable from the overall project cost. Capital expenditures and costs and
operating expenses relating to environmental matters for years after 1998 will
be subject to evolving regulatory requirements and will depend, to some extent,
on the amount of time required to obtain necessary permits and approvals.
 
     From time to time, various agencies may serve cease and desist orders or
notices of violation on an operating unit or deny its applications for certain
licenses or permits, in each case alleging that the practices of the operating
unit are not consistent with the regulations or ordinances. In some cases, the
relevant operating unit may seek to meet with the agency to determine mutually
acceptable methods of modifying or eliminating the practice in question. The
Company believes that its operating units should be able to achieve compliance
with the applicable regulations and ordinances in a manner which should not have
a material adverse effect on its business or results of operations. A citation
previously issued by the U.S. Occupational Safety and Health Administration
('OSHA') against Millennium Petrochemicals with proposed penalties of
approximately $154,000 for alleged violation of OSHA regulations in connection
with a fire at the La Porte, Texas, complex in which two workers were injured,
was settled in October 1997 for $50,000. OSHA agreed that the injuries were not
related to the alleged violations. In April 1997, the Illinois Attorney
General's Office filed a complaint seeking monetary sanctions for releases into
the environment at Millennium Petrochemicals' Morris, Illinois, plant (which was
contributed to Equistar on December 1, 1997) in alleged violation of state
regulations, and a civil penalty in excess of $100,000 could result. Equistar
has agreed to indemnify Millennium Petrochemicals for such third party claims,
subject to an aggregate limitation of $7 million on the indemnification of
certain third party claims, as specified in the Asset Contribution Agreement
between Equistar and Millennium Petrochemicals.
 
     Certain Company subsidiaries have been named as defendants, potentially
responsible parties ('PRPs'), or both, in a number of environmental proceedings
associated with waste disposal sites and facilities currently or previously
owned, operated or used by the Company's subsidiaries or their predecessors,
some of which disposal sites or facilities are on the Superfund National
Priorities List of the U.S. Environmental Protection Agency ('EPA') or similar
state lists. These proceedings seek cleanup costs, damages for personal injury
or property damage, or both. Certain of these proceedings involve claims for
substantial amounts, individually ranging in estimates from less than $300,000
to $45 million. The Company believes that the range of potential liability for
environmental and other legal contingencies, collectively, which primarily
relate to environmental remediation activities and other environmental
proceedings, is between $150 million and $176 million and has accrued $176
million as of December 31, 1998. One potentially significant matter in which a
Company subsidiary is a PRP concerns alleged PCB contamination of a section of
the Kalamazoo River from Kalamazoo, Michigan, to Lake Michigan for which a
remedial investigation/feasibility study is currently being undertaken.
Potential remediation costs related to this matter that are reasonably probable
have been included in the collective range of potential liability referred to
above, as well as in the accrual for environmental matters on the Company's
balance sheet. The accrual also reflects the fact that certain Company
subsidiaries have contractual obligations to indemnify the purchasers of certain
discontinued operations against certain environmental liabilities and that the
Company agreed as part of the Demerger transactions to indemnify Hanson and
certain of its subsidiaries against certain of such contractual indemnification
obligations. No assurance can be given that actual costs will not exceed accrued
amounts for the sites and indemnification obligations for which estimates have
been made and no assurance can be given that costs will not be incurred with
respect to sites and indemnification obligations which are unknown or as to
which no estimate presently can be made.
 
     Several Company subsidiaries have asserted claims and/or instituted
litigation against their insurance carriers alleging that all or a portion of
the past and future costs of investigating, monitoring and conducting response
actions at previously or currently owned and/or operated properties and off-site
landfills are the subject of coverage under various insurance policies. During
1995, a Company subsidiary entered into settlement agreements in one such case
with a number of insurance carriers relating to coverage for environmental
contamination at present and former plant and landfill sites in
 
                                       23
 <PAGE>
<PAGE>
the aggregate amount of approximately $60 million, of which approximately $58
million has been received, with the balance of such payments being made over
time. During 1998, other Company subsidiaries entered into settlement agreements
with a number of insurance carriers relating to coverage for environmental
contamination at other present and former plants and landfill sites in the
aggregate amount of approximately $25 million, approximately $24 million of
which has been received. In addition, several Company subsidiaries have asserted
claims and/or instituted litigation against various entities alleging that they
are responsible for all or a portion of such costs. Management is unable to
predict the outcome of such claims and litigation. Accordingly, for purposes of
financial reporting and establishing provisions, the Company has not assumed any
such recoveries, except where payment has been received or the amount of
liability or contribution by such other parties has been agreed.
 
     The Company cannot predict whether future developments in laws and
regulations concerning environmental protection will affect its earnings or cash
flow in a materially adverse manner or whether its operating units will be
successful in meeting future demands of regulatory agencies in a manner which
will not materially adversely affect the Company's combined financial condition,
results of operations or liquidity.
 
                        PATENTS, TRADEMARKS AND LICENSES
 
     The Company's subsidiaries have numerous U.S. and foreign patents,
registered trademarks and trade names, together with applications and licenses
therefor. Millennium Petrochemicals has entered into a number of licensing
arrangements with respect to the manufacture of VAM. Millennium Petrochemicals
is also licensed by others in the application of certain processes and equipment
designs. Millennium Petrochemicals holds a license from British Petroleum for
its process for producing acetic acid. Generally, upon expiration of the
licenses, the licensee continues to be entitled to use the technology without
payment of a royalty. Millennium Inorganic Chemicals generally does not license
its proprietary processes to third parties or hold licenses from others. While
the patents, licenses, proprietary technologies and trademarks of the Company's
subsidiaries provide certain competitive advantages and are considered
important, particularly with regard to processing technologies such as
Millennium Inorganic Chemicals' proprietary chloride-production process,
Millennium Petrochemicals' proprietary low-water acetic acid process and
Millennium Specialty Chemicals' proprietary terpene chemistry process, the
Company does not consider its business, as a whole, to be materially dependent
upon any one particular patent, license, proprietary technology or trademark.
 
                               EXECUTIVE OFFICERS
 
     The following individuals serve as executive officers of the Company:
 
<TABLE>
<CAPTION>
                NAME                                         POSITION
- ------------------------------------  -------------------------------------------------------
<S>                                   <C>
William M. Landuyt..................  Chairman of the Board, President and Chief Executive
                                        Officer
Robert E. Lee.......................  President and Chief Executive Officer of Millennium
                                        Inorganic Chemicals
George W. Robbins...................  President and Chief Executive Officer of Millennium
                                        Specialty Chemicals
Peter P. Hanik......................  President and Chief Executive Officer of Millennium
                                        Petrochemicals
George H. Hempstead, III............  Senior Vice President -- Law and Administration and
                                        Secretary
John E. Lushefski...................  Senior Vice President and Chief Financial Officer
C. William Carmean..................  Vice President -- Legal
Marie S. Dreher.....................  Vice President and Corporate Controller
A. Mickey Foster....................  Vice President -- Investor Relations
Richard A. Lamond...................  Vice President -- Human Resources
Francis V. Lloyd....................  Vice President -- Tax
James A. Lofredo....................  Vice President -- Corporate Development
Christine F. Wubbolding.............  Vice President and Treasurer
</TABLE>
 
                                       24
 <PAGE>
<PAGE>
     Mr. Landuyt, 43, has served as Chairman of the Board and Chief Executive
Officer of the Company since the Demerger. He has served as the President of the
Company since June 1997. Mr. Landuyt was Director, President and Chief Executive
Officer of Hanson Industries (which managed the U.S. operations of Hanson until
the Demerger) from June 1995 until the Demerger, a Director of Hanson from 1992
until September 29, 1996, Finance Director of Hanson from 1992 to May 1995, and
Vice President and Chief Financial Officer of Hanson Industries from 1988 to
1992. He joined Hanson Industries in 1983. He is a member and a Co-Chairman of
the Partnership Governance Committee of Equistar. He is also a director of
Bethlehem Steel Corporation and the Chemical Manufacturers Association.
 
     Mr. Lee, 42, has served as President and Chief Executive Officer of
Millennium Inorganic Chemicals since June 1997. From the Demerger to June 1997,
he served as the President and Chief Operating Officer of the Company. He has
been a Director of the Company since the Demerger. Mr. Lee was a Director and
the Senior Vice President and Chief Operating Officer of Hanson Industries from
June 1995 until the Demerger, an Associate Director of Hanson from 1992 until
the Demerger, Vice President and Chief Financial Officer of Hanson Industries
from 1992 to June 1995, Vice President and Treasurer of Hanson Industries from
1990 to 1992, and Treasurer of Hanson Industries from 1987 to 1990. He joined
Hanson Industries in 1982.
 
     Mr. Robbins, 58, has served as President and Chief Executive Officer of
Millennium Specialty Chemicals since 1986. He was an Associate Director of
Hanson from May 1995 until the Demerger and a Director of Hanson Industries from
June 1995 until the Demerger. Mr. Robbins joined SCM Corporation in 1982 as Vice
President and General Manager of the SCM Organic Chemicals Division. He has been
associated with the plastic and chemical industries for almost 30 years. He is a
member of the Partnership Governance Committee of Equistar.
 
     Mr. Hanik, 52, has served as President and Chief Executive Officer of
Millennium Petrochemicals since March 1998. Prior to that time, he was Vice
President, Chemicals and Supply Chain, where he was responsible for the
Company's acetyls business. Mr. Hanik joined Millennium Petrochemicals in 1974
and has been associated with the plastic and chemical industries for 30 years.
 
     Mr. Hempstead, 55, has served as Senior Vice President -- Law and
Administration and Secretary of the Company since the Demerger. He was Senior
Vice President -- Law and Administration of Hanson Industries from June 1995
until the Demerger, an Associate Director of Hanson from 1990 until the
Demerger, and a Director of Hanson Industries from 1986 until the Demerger. Mr.
Hempstead was Senior Vice President and General Counsel of Hanson Industries
from 1993 to June 1995 and Vice President and General Counsel of Hanson
Industries from 1982 to 1993. He initially joined Hanson Industries in 1976.
Mr. Hempstead is a member of the Board of Supervisors of Suburban Propane.
 
     Mr. Lushefski, 43, has served as Senior Vice President and Chief Financial
Officer of the Company since the Demerger. He was a Director and the Senior Vice
President and Chief Financial Officer of Hanson Industries from June 1995 until
the Demerger. He was Vice President and Chief Financial Officer of Peabody
Holding Company, a Hanson subsidiary which held Hanson's coal mining operations,
from 1991 to May 1995 and Vice President and Controller of Hanson Industries
from 1990 to 1991. Mr. Lushefski initially joined Hanson Industries in 1985.
Mr. Lushefski is a member of the Equistar Partnership Governance Committee and
the Board of Supervisors of Suburban Propane.
 
     Mr. Carmean, 46, has served as Vice President -- Legal of the Company since
December 1997. He was Associate General Counsel of the Company from the Demerger
to December 1997, Associate General Counsel of Hanson Industries from 1993 to
the Demerger, and Corporate Counsel of Quantum Chemical Company from 1990 until
its acquisition by Hanson in 1993. Prior to 1990, he was Associate General
Counsel of Squibb Corporation.
 
     Ms. Dreher, 40, has served as Corporate Controller of the Company since the
Demerger and was elected a Vice President in October 1996. She was Director of
Planning and Budgeting of Hanson Industries from November 1995 until the
Demerger. She joined Hanson Industries in January 1994 as Assistant Corporate
Controller with principal responsibilities focused on tax, environmental and
financial compliance matters. She is a certified public accountant. Prior to
joining Hanson Industries, she was a Senior Manager at Ernst & Young LLP.
 
                                       25
 <PAGE>
<PAGE>
     Mr. Foster, 43, has served as Vice President -- Investor Relations of the
Company since the Demerger. He was Vice President -- Investor Relations of
Hanson Industries from August 1992 until the Demerger. Mr. Foster held investor
relation positions with Atlantic Richfield and Pacific Enterprises from 1983 to
1992. He is a past Chairman of the National Investor Relations Institute.
 
     Mr. Lamond, 52, has served as Vice President -- Human Resources of the
Company since November 1997. He served as Vice President -- Human Resources for
Millennium Inorganic Chemicals from March 1997 to November 1997 and as Vice
President -- Human Resources for Grove Worldwide, a subsidiary of Hanson, from
September 1994 to March 1997. He served as the Director -- Organization
Development and Compensation and Benefits of Millennium Inorganic Chemicals for
the balance of the past five years.
 
     Mr. Lloyd, 59, has served as Vice President -- Tax of the Company since the
Demerger. He was Vice President -- Tax of Hanson Industries from 1993 until the
Demerger. Mr. Lloyd joined Hanson Industries in 1987 and was Senior Director of
Tax of Hanson Industries from 1987 to 1993. Prior thereto, he was Vice President
and Director of Tax of Kidde, Inc., which was acquired by Hanson in 1987.
 
     Mr. Lofredo, 43, has served as the Company's Director of Corporate
Development since the Demerger and was elected a Vice President in October 1996.
He was Director of Corporate Development of Hanson Industries from March 1993
until the Demerger, with his principal responsibilities focused on acquisitions
and divestitures. He joined Hanson Industries in June 1992 as Assistant
Corporate Controller.
 
     Ms. Wubbolding, 46, has served as Vice President and Treasurer of the
Company since the Demerger. She served as Vice President of Hanson Industries
from January 1996 until the Demerger and as Treasurer of Hanson Industries from
June 1994 until the Demerger. She joined Hanson Industries in 1976 and held
various financial positions, primarily in the treasury area, prior to 1994.
 
ITEM 2. PROPERTIES
 
     Set forth below is a list of the Company's principal manufacturing
facilities (other than those of Equistar, Suburban Propane and La Porte Methanol
Company), all of which are owned. In addition, the Company owns a mineral sands
mine in Mataraca, Paraiba, Brazil, that supplies Millennium Inorganic Chemicals'
TiO2 plant in Brazil with titanium ore, and Millennium Petrochemicals owns a
syngas plant in La Porte, Texas, which it leases to Linde pursuant to a
long-term lease. The Company's operating subsidiaries also lease warehouses and
offices, none of which are material to the Company's business or operations.
 
<TABLE>
<CAPTION>
                        LOCATION                                                  PRODUCTS
- --------------------------------------------------------  --------------------------------------------------------
<S>                                                       <C>
Millennium Inorganic Chemicals
     Ashtabula, Ohio....................................  TiO2 and TiCl4
     Baltimore, Maryland (Hawkins Point)................  TiO2
     Kemerton, Western Australia........................  TiO2
     Le Havre, Normandy, France.........................  TiO2
     Stallingborough, U.K. .............................  TiO2
     Thann, Alsace, France..............................  TiO2, TiCl4, specialty TiO2 and zirconium-based
                                                          compounds
     Salvador, Bahia, Brazil............................  TiO2
Millennium Petrochemicals
     La Porte, Texas....................................  VAM and acetic acid
Millennium Specialty Chemicals
     Baltimore, Maryland (St. Helena)...................  Cadmium-based pigments and silica gel
     Brunswick, Georgia.................................  Fragrance and flavor chemicals
     Jacksonville, Florida..............................  Fragrance and flavor chemicals
</TABLE>
 
     Millennium Inorganic Chemicals has two manufacturing plants located in
Baltimore, Maryland (Hawkins Point), one of which uses the chloride process for
manufacturing TiO2 and the other of which uses the sulfate process, and two
manufacturing plants at Ashtabula, Ohio, both of which use the
 
                                       26
 <PAGE>
<PAGE>
chloride process. The Company believes that its properties are well maintained
and are in good operating condition.
 
ITEM 3. LEGAL PROCEEDINGS
 
     The Company and various Company subsidiaries are defendants in a number of
pending legal proceedings incidental to present and former operations. These
include several proceedings alleging injurious exposure of the plaintiffs to
various chemicals and other materials manufactured by the Company's current and
former subsidiaries. Typically, such proceedings involve large claims made by
many plaintiffs against many defendants in the chemical industry. The Company
does not expect that the outcome of these proceedings, either individually or in
the aggregate, will have a material adverse effect upon the Company's
consolidated financial position or results of operations.
 
     Together with other alleged past manufacturers of lead pigments for use in
paint and lead-based paint, a former subsidiary of a discontinued operation has
been named as a defendant or third party defendant in various legal proceedings
alleging that it and other manufacturers are responsible for personal injury and
property damage allegedly associated with the use of lead pigments in paint.
These proceedings consist of four cases in the State of New York, one of which
has been brought by the New York City Housing Authority, and a class action
personal injury case filed on behalf of all purportedly lead-poisoned children
in Ohio. There can be no assurance that additional litigation will not be filed.
The legal proceedings seek recovery under a variety of theories, including
negligence, failure to warn, breach of warranty, conspiracy, market share
liability, fraud and misrepresentation. The plaintiffs in these actions
generally seek to impose on the defendants responsibility for alleged damages
and health concerns associated with the use of lead-based paints. These cases
are in various pre-trial stages. The trial court in the Brenner case cited below
recently ruled that a market share theory of recovery was applicable to this
type of lead case. The Company and its co-defendants are appealing this
decision, which is the first time any court has made such a determination. The
Company is vigorously defending such litigation. Although liability, if any,
that may result is not reasonably capable of estimation, the Company currently
believes that the disposition of such claims in the aggregate should not have a
material adverse effect on the Company's combined financial position, results of
operations or liquidity. The pending legal proceedings referred to above are as
follows: Brenner et al. v. American Cyanamid Company, et al., and Tyrell et al.
v. American Cyanamid et al., both commenced in the Supreme Court of the State of
New York on November 9, 1993; The City of New York et al. v. Lead Industries
Association, Inc., et al., commenced in the Supreme Court of the State of New
York on June 8, 1989; Kayla Sabater et al. v. Lead Industries Association, Inc.,
et al., commenced in the Supreme Court of New York, Bronx County, on November
25, 1998; and, Jackson, et al. v. The Glidden Co., et al., commenced in the
Court of Common Pleas, Cuyahoga County, Ohio on August 12, 1992.
 
     In addition, various laws and administrative regulations have, from time to
time, been enacted or proposed at the federal, state and local levels and may be
proposed in the future that seek to (i) impose various obligations on present
and former manufacturers of lead pigment and lead paint with respect to asserted
health concerns associated with the use of such products, and (ii) effectively
overturn court decisions in which the Company's former subsidiary and other
defendants have been successful. No legislation or regulations have been adopted
to date which are expected to have a material adverse effect on the Company's
consolidated financial position or results of operations.
 
     For information concerning the Company's environmental proceedings, see
'Environmental Matters' in Item 1 of this Annual Report on Form 10-K, which is
incorporated by reference herein.
 
ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS
 
     Not applicable.
 
                                       27
<PAGE>
<PAGE>
                                    PART II
 
ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED SHAREHOLDER MATTERS
 
     The data regarding the Company's Common Stock and Shareholders contained
under the caption 'Market for Registrant's Common Stock and Related Shareholder
Matters' on page 43 of the Annual Report to Shareholders are incorporated into
this Annual Report on Form 10-K by reference.
 
     The Company paid a dividend of $.12 per share of Common Stock, plus U.K.
Advance Corporation Tax of $.03 per share, in each quarter of 1997 and 1998.
 
ITEM 6. SELECTED FINANCIAL DATA
 
     The selected financial data of the Company contained on page 18 of the
Annual Report to Shareholders are incorporated into this Annual Report on Form
10-K by reference. Such selected financial data were derived from the audited
Consolidated Financial Statements of the Company, and should be read in
conjunction with such financial statements, including the Notes thereto, and
'Management's Discussion and Analysis of Financial Condition and Results of
Operations,' which are incorporated by reference into this Annual Report on
Form 10-K from the Annual Report to Shareholders.
 
ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
OF OPERATIONS
 
     The Company's 'Management's Discussion and Analysis of Financial Condition
and Results of Operations' contained on pages 20 through 28 of the Annual Report
to Shareholders is incorporated into this Annual Report on Form 10-K by
reference. Such information should be read in conjunction with the Company's
Consolidated Financial Statements, including the Notes thereto. In connection
with the forward-looking statements which appear in 'Management's Discussion and
Analysis of Financial Condition and Results of Operations,' the 'Cautionary
Statements' which appear immediately after the Table of Contents in this Annual
Report on Form 10-K should be reviewed carefully.
 
ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
 
     The discussions under the captions 'Historical Cyclicality of the Company's
Operations' and 'Foreign Currency Matters' in the Company's 'Management's
Discussion and Analysis of Financial Condition and Results of Operations' and
the discussion under the caption 'Off Balance Sheet Risk' in Note 8 to the
Company's Consolidated Financial Statements, each of which is included in the
Annual Report to Shareholders, are incorporated into this Annual Report on Form
10-K by reference.
 
ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
 
     The Consolidated Financial Statements of the Company, including the Notes
thereto, and the report of PricewaterhouseCoopers LLP thereon, contained on
pages 29 through 43 of the Annual Report to Shareholders are incorporated into
this Annual Report on Form 10-K by reference.
 
     In addition, the Supplemental Financial Information and Financial Statement
Schedule listed in Item 14(a)(1)(ii) and (2) of this Annual Report on Form 10-K,
including the Report of PricewaterhouseCoopers LLP thereon and the Report of
Ernst & Young LLP, are incorporated herein by reference.
 
                                       28
 <PAGE>
<PAGE>
ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
FINANCIAL DISCLOSURE
 
     Not applicable.
 
                                    PART III
 
ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT
 
     The information included under the caption 'Executive Officers' in Item 1
of this Annual Report on Form 10-K is incorporated herein by reference.
 
     The information to be included under the captions 'Election of Directors'
and 'Other Matters -- Section 16(a) Beneficial Ownership Reporting Compliance'
in the Company's definitive proxy statement to be filed with the Commission
pursuant to Regulation 14A of the Exchange Act in connection with the Annual
Meeting of the Company's Shareholders to be held on May 14, 1999 (the 'Proxy
Statement'), is incorporated herein by reference.
 
ITEM 11. EXECUTIVE COMPENSATION
 
     The information to be included under the captions 'Corporate
Governance -- Directors' Remuneration and Attendance at Meetings' and 'Executive
Compensation' in the Proxy Statement is incorporated herein by reference.
 
ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
 
     The information to be included under the caption 'Ownership of Common
Stock' in the Proxy Statement is incorporated herein by reference.
 
ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS
 
     Not applicable.
 
                                    PART IV
 
ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULE AND REPORTS ON FORM 8-K
 
     (A) THE FOLLOWING DOCUMENTS ARE FILED AS PART OF THIS REPORT:
 
         1. (i) The Consolidated Financial Statements of the Company, including
            the Notes thereto, and the Report of PricewaterhouseCoopers LLP
            thereon, contained on pages 29 through 43 of the Company's Annual
            Report to Shareholders, consist of the following:
 
<TABLE>
<CAPTION>
                                                                                     PAGE OF
                                                                                  THE COMPANY'S
                                                                                  ANNUAL REPORT
                                                                                 ---------------
<S>                                                                              <C>
 -- Report of PricewaterhouseCoopers LLP.......................................      29
 -- Consolidated Balance Sheets -- December 31, 1998 and 1997..................      30
 -- Consolidated Statements of Operations -- Years Ended December 31, 1998,
    1997 and 1996..............................................................      31
 -- Consolidated Statements of Cash Flows -- Years Ended December 31, 1998,
    1997 and 1996..............................................................      32
 -- Consolidated Statements of Changes in Shareholders' Equity -- Years Ended
    December 31, 1998, 1997 and 1996...........................................      33
 -- Notes to Consolidated Financial Statements.................................    34-43
</TABLE>
 
            With the exception of the information listed directly above and the
            information specifically incorporated by reference into Items 1, 5,
            6, 7, 7A and 8 of this Annual Report on Form 10-K, the Annual Report
            to Shareholders is not to be deemed filed as a part of this Annual
            Report on Form 10-K.
 
                                       29
 <PAGE>
<PAGE>
         1. (ii) Supplemental Financial Information.
 
            The Supplemental Financial Information relating to the Company,
            Millennium America Inc. ('Millennium America') and Equistar consist
            of the following:
 
<TABLE>
<CAPTION>
                                                                                  PAGE OF
                                                                                THIS REPORT
                                                                                ------------
<S>                                                                             <C>
Report of PricewaterhouseCoopers LLP.........................................       F-1
Report of Ernst & Young LLP (Cornerstone-Spectrum, Inc.).....................       F-2
Consolidated Financial Statements of Millennium America:
     Millennium America Consolidated Balance Sheets -- December 31, 1998 and
       1997..................................................................       F-3
     Millennium America Consolidated Statements of Operations -- Years Ended
       December 31, 1998, 1997 and 1996......................................       F-4
Financial Statements of Equistar:
     Report of PricewaterhouseCoopers LLP....................................       F-5
     Balance Sheets -- December 31, 1998 and 1997............................       F-6
     Statements of Income -- Year ended December 31, 1998 and the Period from
       December 1, 1997 to December 31, 1997.................................       F-7
     Statements of Partners' Capital -- Year ended December 31, 1998 and the
       period from December 1, 1997 to December 31, 1997.....................       F-8
     Statements of Cash Flows -- Year ended December 1, 1998 and the period
       from December 31, 1997 to December 31, 1997...........................       F-9
     Notes to Financial Statements...........................................   F-10 to F-24
</TABLE>
 
         2. Financial Statement Schedule.
 
            Financial Statement Schedule II -- Valuation and Qualifying
            Accounts, located on page S-1 of this Annual Report on Form 10-K,
            should be read in conjunction with the Financial Statements included
            in Item 8 of this Annual Report on Form 10-K. Schedules, other than
            Schedule II, are omitted because of the absence of the conditions
            under which they are required or because the information called for
            is included in the Consolidated Financial Statements of the Company
            or the Notes thereto.
 
         3. Exhibits.
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                                      DESCRIPTION OF DOCUMENT
- ---------  -------------------------------------------------------------------------------------------
<C>        <S>
 3.1       -- Amended and Restated Certificate of Incorporation of the Company (Filed as Exhibit 3.1
              to the Company's Registration Statement on Form 10 (File No. 1-12091) (the 'Form 10'))*
 3.2       -- By-laws of the Company (Filed as Exhibit 3.2 to the Form 10)*
 4.1(a)    -- Form of Indenture, dated as of November 27, 1996, among Millennium America Inc.
              (formerly Hanson America, Inc.) ('Millennium America'), the Company and The Bank of New
              York, as Trustee, in respect of the 7% Senior Notes due November 15, 2006 and the 7.625%
              Senior Debentures due November 15, 2026 (Filed as Exhibit 4.1 to the Registration
              Statement of the Company and Millennium America on Form S-1 (Registration No. 333-15975)
              (the 'Form S-1'))*
 4.1(b)    -- First Supplemental Indenture dated as of November 21, 1997 among Millennium America, the
              Company and The Bank of New York, as Trustee (Filed as Exhibit 4.1(b) to the Company's
              Annual Report on Form 10-K for the year ended December 31, 1997 (the '1997 Form 10-K'))*
10.1       -- Form of Pre-Demerger Stock Purchase Agreement, dated as of September 16, 1996, between
              Millennium Holdings Inc. (formerly HM Holdings, Inc.) ('Millennium Holdings') and Hanson
              (including related form of Indemnification Agreement and Tax Sharing and Indemnification
              Agreement) (Filed as Exhibit 10.1 to the Form 10)*
</TABLE>
 
                                       30
 <PAGE>
<PAGE>
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                                      DESCRIPTION OF DOCUMENT
- ---------  -------------------------------------------------------------------------------------------
<C>        <S>
10.2       -- Form of Pre-Demerger Stock Purchase Agreement, dated as of September 16, 1996, between
              Millennium Holdings and Hanson relating to Peabody Holding Company, Inc. (including
              related form of Indemnification Agreement and Tax Sharing and Indemnification Agreement)
              (Filed as Exhibit 10.2 to the Form 10)*
10.3       -- Form of Pre-Demerger Stock Purchase Agreement, dated as of September 16, 1996, between
              Millennium Holdings and Hanson relating to certain Canadian subsidiaries (including
              related form of Indemnification Agreement) (Filed as Exhibit 10.3 to the Form 10)*
10.4       -- Form of Pre-Demerger Stock Purchase Agreement, dated as of September 30, 1996, between
              Millennium Holdings and Hanson relating to Lynton Group, Inc. (Filed as Exhibit 10.4 to
              the Form 10)*
10.5       -- Form of Post-Demerger Stock Purchase Agreement, dated as of September 30, 1996, between
              HMB Holdings Inc. and Hanson (including related form of Indemnification Agreement and Tax
              Sharing and Indemnification Agreement) (Filed as Exhibit 10.5 to the Form 10)*
10.6       -- Form of Post-Demerger Stock Purchase Agreement, dated as of September 30, 1996, between
              Hanson and MHC Inc. (including related form of Indemnification Agreement and Tax Sharing
              and Indemnification Agreement) (Filed as Exhibit 10.6 to the Form 10)*
10.7       -- Demerger Agreement, dated as of September 30, 1996, between Hanson, Millennium Overseas
              Holdings Ltd. (formerly Hanson Overseas Holdings Ltd.) and the Company (Filed as Exhibit
              10.7 to the Form 10)*
10.8       -- Form of Indemnification Agreement, dated as of September 30, 1996, between Hanson and
              the Company (Filed as Exhibit 10.8 to the Form 10)*
10.9(a)    -- Form of Tax Sharing and Indemnification Agreement, dated as of September 30, 1996,
              between Hanson, Millennium Overseas Holdings Ltd., Millennium America Holdings Inc.
              (formerly HM Anglo American Ltd.), Hanson North America Inc. and the Company (Filed as
              Exhibit 10.9(a) to the Form 10)*
10.9(b)    -- Deed of Tax Covenant, dated as of September 30, 1996, between Hanson, Millennium
              Overseas Holdings Ltd., Millennium Inorganic Chemicals Limited (formerly SCM Chemicals
              Limited), SCMC Holdings B.V. (formerly Hanson SCMC B.V.), Millennium Inorganic Chemicals
              Ltd. (formerly SCM Chemicals Ltd.), and the Company (the 'Deed of Tax Covenant') (Filed
              as Exhibit 10.9(b) to the Form 10)*
10.9(c)    -- Amendment to the Deed of Tax Covenant dated January 28, 1997 (Filed as Exhibit 10.9(c)
              to the Company's Annual Report on Form 10-K for the year ended December 31, 1996 (the
              '1996 Form 10-K'))*
10.10      -- Form of Corporate Transition Agreement, dated as of September 30,1996, between Hanson
              North America Inc. and Millennium America Holdings Inc. (Filed as Exhibit 10.10 to the
              Form 10)*
10.11      -- Form of Joint Ownership Agreement, dated as of September 30, 1996, between Hanson North
              America Inc. and Millennium America Holdings Inc. (Filed as Exhibit 10.11 to the Form
              10)*
10.12      -- Form of Agreement, dated as of October 1, 1996, between Hanson Pacific Limited and
              Millennium Holdings Inc. (Filed as Exhibit 10.12 to the Form 10)*
10.13      -- Form of Management Agreement, dated as of September 30, 1996, among MHC Inc., Millennium
              Petrochemicals Inc. (formerly Quantum Chemical Corporation) ('Millennium
              Petrochemicals'), and Welbeck Management Limited (Filed as Exhibit 10.13(a) to the Form
              10)*
10.14(a)   -- Credit Agreement ('Credit Agreement'), dated as of July 26, 1996, among Millennium
              America, the Company, as Guarantor, the borrowing subsidiaries party thereto, the lenders
              party thereto, The Chase Manhattan Bank, as Documentation Agent, and Bank of America
              National Trust and Savings Association, as Administration Agent (Filed as Exhibit 10.14
              to the Form 10)*
10.14(b)   -- Amendment to the Credit Agreement dated as of December 18, 1996 (Filed as Exhibit
              10.14(b) to the 1996 Form 10-K)*
10.14(c)   -- Second Amendment to the Credit Agreement dated as of October 20, 1997 (Filed as Exhibit
              10.14(b) to the 1996 Form 10-K)*
</TABLE>
 
                                       31
 <PAGE>
<PAGE>
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                                      DESCRIPTION OF DOCUMENT
- ---------  -------------------------------------------------------------------------------------------
<C>        <S>
10.15      -- Form of Agreement, dated as of July 24, 1998, between Millennium America Holdings Inc.
              and William M. Landuyt; Robert E. Lee; George H. Hempstead, III; Richard A. Lamond; and,
              John E. Lushefski (Filed as Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q
              for the quarter ended September 30, 1998 (the 'September 30, 1998 Form 10-Q'))*'D'
10.16      -- Form of Agreement, dated as of July 24, 1998, between Millennium Specialty Chemicals
              Inc. and George W. Robbins. This form of agreement is identical to the agreements between
              the Company's operating subsidiaries and certain officers of such subsidiaries who are
              not executive officers of the Company. (Filed as Exhibit 10.2 to the September 30, 1998
              Form 10-Q)*'D'
10.17      -- Form of Agreement, dated as of July 24, 1998, between Millennium Petrochemicals Inc. and
              each of Peter P. Hanik and Charles F. Daly**'D'
10.18      -- Form of Change-in-Control Agreement, dated as of July 24, 1998, between Millennium
              America Holdings Inc. and each of C. William Carmean, Marie S. Dreher, A. Mickey Foster,
              Francis V. Lloyd, James A. Lofredo and Christine F. Wubbolding (Filed as Exhibit 10.22 to
              the Form 10-Q)*'D'
10.19      -- Form of Change-in-Control Agreement between each of the Company's operating subsidiaries
              and certain officers of such subsidiaries who are not executive officers of the
              Company**'D'
10.20(a)   -- Millennium Chemicals Inc. Annual Performance Incentive Plan (Filed as Exhibit 10.23 to
              the Form 10)*'D'
10.20(b)   -- Amendment Number 1 dated January 20, 1997, to the Millennium Chemicals Inc. Annual
              Performance Plan. (Filed as Exhibit 10.23(b) to the 1996 Form 10-K)*'D'
10.20(c)   -- Amendment Number 2 dated January 23, 1998, to the Millennium Chemical Inc. Annual
              Performance Incentive Plan (Filed as Exhibit 10.23(c) to the 1997 Form 10-K)*'D'
10.20(d)   -- Amendment Number 3 dated January 22, 1999, to the Millennium Chemicals Inc. Annual
              Performance Incentive Plan**'D'
10.21(a)   -- Millennium Chemicals Inc. 1996 Long Term Incentive Plan (Filed as Exhibit 10.24 to the
              Form 10)*'D'
10.21(b)   -- Termination Amendment dated as of October 23, 1997, to the Millennium Chemicals Inc.
              1996 Long Term Incentive Plan (Filed as Exhibit 10.24(b) to the 1997 Form 10-K)*'D'
10.21(c)   -- Amendment dated January 23, 1998 to the Millennium Chemicals Inc. 1996 Long Term
              Incentive Plan (Filed as Exhibit 10.24(c) to the 1997 Form 10-K)*'D'
10.21(d)   -- Amendment dated January 22, 1999 to the Millennium Chemicals Inc. 1996 Long Term
              Incentive Plan**'D'
10.22      -- Millennium Chemicals Inc. Executive Long-Term Incentive Plan, as amended by the
              Termination Amendment thereto, dated as of October 23, 1997, and as further amended by
              amendments thereto dated January 23, 1998 and January 22, 1999**'D'
10.23(a)   -- Millennium Chemicals Inc. Long Term Stock Incentive Plan (Filed as Exhibit 10.25 to the
              Form 10)*'D'
10.23(b)   -- Amendment Number 1 to the Millennium Chemicals Inc. Long Term Stock Incentive Plan
              (Filed as Exhibit 10.6 to the Company's Quarterly Report on Form 10-Q for the quarter
              ended September 30, 1997)*'D'
10.23(c)   -- Amendment dated July 24, 1997, to the Millennium Chemicals Inc. Long Term Stock
              Incentive Plan (Filed as Exhibit 10.25(c) to the 1997 Form 10-K)*'D'
10.23(d)   -- Amendments dated January 23, 1998 and December 10, 1998 to the Millennium Chemicals Inc.
              Long Term Stock Incentive Plan**'D'
10.24      -- Millennium Chemicals Inc. Supplemental Executive Retirement Plan (Filed as Exhibit 10.26
              to the Form 10)*'D'
10.25      -- Millennium Petrochemicals Supplemental Executive Retirement Plan (Filed as Exhibit 10.27
              to the Form 10)*'D'
10.26      -- Millennium Inorganic Chemicals Supplemental Executive Retirement Plan (Filed as Exhibit
              10.28 to the Form 10)*'D'
</TABLE>
 
                                       32
 <PAGE>
<PAGE>
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                                      DESCRIPTION OF DOCUMENT
- ---------  -------------------------------------------------------------------------------------------
<C>        <S>
10.27      -- Millennium Specialty Chemicals Supplemental Executive Retirement Plan (Filed as Exhibit
              10.29 to the Form 10)*'D'
10.28(a)   -- Millennium Chemicals Inc. Salary and Bonus Deferral Plan (Filed as Exhibit 10.30 to the
              1996 Form 10-K)*'D'
10.28(b)   -- Amendment Number 1 dated January 23, 1998, to the Millennium Chemicals Inc. Salary and
              Bonus Deferral Plan (Filed as Exhibit 10.30(b) to the 1997 Form 10-K)*'D'
10.28(c)   -- Amendment Number 2 dated January 22, 1999, to the Millennium Chemicals Inc. Salary and
              Bonus Deferral Plan**'D'
10.29      -- Millennium Chemicals Inc. Supplemental Savings and Investment Plan**'D'
10.30      -- Master Transaction Agreement between the Company and Lyondell (Filed as an Exhibit   to
              the Company's Current Report on Form 8-K dated July 25, 1997)*
10.31      -- First Amendment to Master Transaction Agreement between Lyondell and the Company (Filed
              as an Exhibit to the Company's Current Report on Form 8-K dated October 17, 1997)*
10.32      -- Limited Partnership Agreement of Equistar (Filed as an Exhibit to the Company's Current
              Report on Form 8-K dated October 17, 1997)*
10.33      -- Asset Contribution Agreement among Millennium Petrochemicals, Millennium Petrochemicals
              LP LLC and Equistar (Filed as an Exhibit to the Company's Current Report on Form 8-K
              dated December 10, 1997)*
10.34      -- Asset Contribution Agreement among Lyondell, Lyondell Petrochemicals L.P. Inc. and
              Equistar (Filed as an Exhibit to the Company's Current Report on Form 8-K dated December
              10, 1997)*
10.35      -- Parent Agreement among Lyondell, the Company and Equistar (Filed as an Exhibit to the
              Company's Current Report on Form 8-K dated December 10, 1997)*
10.36      -- Amended and Restated Partnership Agreement of Equistar**
10.37      -- Amended and Restated Parent Agreement among Lyondell, the Company, Occidental, Oxy CH
              Corporation, Occidental Chemical Corporation, and Equistar**
11.1       -- Statement re: computation of per share earnings**
13.        -- Information incorporated by reference from the Annual Report to Shareholders and the
              Company's 1997 Annual Report to Shareholders**
21.1       -- Subsidiaries of the Company**
23.1       -- Consent of PricewaterhouseCoopers LLP**
23.2       -- Consent of PricewaterhouseCoopers LLP**
23.3       -- Consent of Ernst & Young LLP**
27.1       -- Financial Data Schedule**
99.1       -- Form of Letter Agreement, dated July 3, 1996, between Hanson and U.K. Inland Revenue
              (Filed as Exhibit 99.2 to the Form 10)*
           In addition, the Company hereby agrees to furnish to the SEC, upon request, a copy of any
              instrument not listed above which defines the rights of the holders of long-term debt of
              the Company and its subsidiaries.
</TABLE>
 
     -----------------
 
*   Incorporated by reference
 
**  Filed herewith
 
'D' Management contract or compensatory plan or arrangement required to be
     filed pursuant to Item 14(c).
 
     (B) REPORTS ON FORM 8-K      None.
 
                                       33
<PAGE>
<PAGE>
                                   SIGNATURES
 
     Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized.
 
                                                MILLENNIUM CHEMICALS INC.
                                          By:       /s/ WILLIAM M. LANDUYT
                                             ...................................
                                                     WILLIAM M. LANDUYT
                                            CHAIRMAN OF THE BOARD, PRESIDENT AND
                                                  CHIEF EXECUTIVE OFFICER
 
March 30, 1999
 
     Pursuant to the requirements of the Securities Exchange Act of 1934, this
Annual Report on Form 10-K has been signed below by the following persons on
behalf of the registrant and in the capacities indicated, and on the date set
forth above.
 
<TABLE>
<CAPTION>
                SIGNATURE                                                   TITLE
- ------------------------------------------  ---------------------------------------------------------------------
<C>                                         <S>
          /S/ WILLIAM M. LANDUYT            Chairman of the Board, President, Chief Executive Officer and
 .........................................    Director (principal executive officer)
           (WILLIAM M. LANDUYT)
 
            /S/ ROBERT E. LEE               President, Chief Executive Officer of Millennium Inorganic Chemicals
 .........................................    and Director
             (ROBERT E. LEE)
 
          /S/ JOHN E. LUSHEFSKI             Senior Vice President and Chief Financial Officer
 .........................................    (principal financial officer)
           (JOHN E. LUSHEFSKI)
 
            /S/ KENNETH BAKER               Director
 .........................................
               (LORD BAKER)
 
         /S/ WORLEY H. CLARK, JR.           Director
 .........................................
          (WORLEY H. CLARK, JR.)
 
          /S/ MARTIN D. GINSBURG            Director
 .........................................
           (MARTIN D. GINSBURG)
 
              /S/ GLENARTHUR                Director
 .........................................
            (LORD GLENARTHUR)
 
         /S/ DAVID J. P. MEACHIN            Director
 .........................................
          (DAVID J. P. MEACHIN)
 
           /S/ MARTIN G. TAYLOR             Director
 .........................................
            (MARTIN G. TAYLOR)
 
           /S/ MARIE S. DREHER              Vice President and Corporate Controller
 .........................................    (principal accounting officer)
            (MARIE S. DREHER)
</TABLE>
 
                                       34
<PAGE>
<PAGE>
                      REPORT OF INDEPENDENT ACCOUNTANTS ON
                     SUPPLEMENTAL FINANCIAL INFORMATION AND
                        THE FINANCIAL STATEMENT SCHEDULE
 
To the Board of Directors of
MILLENNIUM CHEMICALS INC.
 
     Our audits of the consolidated financial statements referred to in our
report dated January 21, 1999, appearing on page 29 of the 1998 Annual Report to
Shareholders of Millennium Chemicals Inc. (which report and consolidated
financial statements are incorporated by reference in this Annual Report on Form
10-K) also included an audit of the Supplemental Financial Information relating
to Millennium America Inc. and the Financial Statement Schedule listed in Item
14(a) of this Annual Report on Form 10-K. In our opinion, such Supplemental
Financial Information relating to Millennium America Inc. and the Financial
Statement Schedule present fairly, in all material respects, the information set
forth therein when read in conjunction with the related consolidated financial
statements.
 
PRICEWATERHOUSECOOPERS LLP
 
FLORHAM PARK, NJ
JANUARY 21, 1999
 
                                      F-1
 <PAGE>
<PAGE>
                         REPORT OF INDEPENDENT AUDITORS
 
To the Board of Directors
and Stockholder of
CORNERSTONE-SPECTRUM, INC.
 
     We have audited the consolidated balance sheet of Cornerstone-Spectrum,
Inc. (the 'Company') as of September 28, 1996 and the related consolidated
statements of operations, changes in stockholder's equity, and cash flows for
the year then ended (not presented separately herein). These financial
statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audit.
 
     We conducted our audit in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audit provides a reasonable basis for our opinion.
 
     In our opinion, the financial statements referred to above present fairly,
in all material respects, the consolidated financial position of
Cornerstone-Spectrum, Inc. at September 28, 1996 and the consolidated results of
its operations and its cash flows for the year then ended in conformity with
generally accepted accounting principles.
 
     As discussed in Note 3 to the consolidated financial statements of the
Company, the Company changed its method of measuring losses for impairment of
long-lived assets.
 
                                          ERNST & YOUNG LLP
 
Hackensack, New Jersey
November 13, 1996
 
                                      F-2
 <PAGE>
<PAGE>
                            MILLENNIUM AMERICA INC.
                       CONSOLIDATED FINANCIAL STATEMENTS
 
     Millennium America Inc., a wholly owned indirect subsidiary of Millennium
Chemicals Inc. (the 'Company'), is a holding company for all of the Company's
operating subsidiaries other than its operations in the United Kingdom, France,
Brazil and Australia. Millennium America Inc. is the issuer of the 7% Senior
Notes due November 15, 2006, and the 7.625% Senior Debentures due November 15,
2026, and is a borrower under the Company's Revolving Credit Agreement.
Accordingly, the Consolidated Balance Sheets and Consolidated Statements of
Operations are provided for Millennium America Inc.
 
                            MILLENNIUM AMERICA INC.
                          CONSOLIDATED BALANCE SHEETS
 
<TABLE>
<CAPTION>
                                                                                                  DECEMBER 31,
                                                                                               ------------------
                                                                                                1998        1997
                                                                                               ------      ------
                                                                                                 (IN MILLIONS)
<S>                                                                                            <C>         <C>
                                           ASSETS
Current assets:
     Cash and cash equivalents..............................................................   $   30      $   23
     Trade receivables, net.................................................................      136         260
     Inventories............................................................................      142         165
     Other current assets...................................................................      230         104
                                                                                               ------      ------
          Total current assets..............................................................      538         552
Property, plant and equipment, net..........................................................      481         473
Investment in Equistar......................................................................    1,519       1,934
Other assets................................................................................      167         203
Due from parent and affiliates..............................................................      491         260
Goodwill....................................................................................      412         468
                                                                                               ------      ------
          Total assets......................................................................   $3,608      $3,890
                                                                                               ------      ------
                                                                                               ------      ------
 
                              LIABILITIES AND INVESTED CAPITAL
Current liabilities:
     Notes payable..........................................................................   $    9      $ --
     Current maturities of long-term debt...................................................        2           2
     Trade accounts payable.................................................................       55          43
     Income taxes payable...................................................................        1           4
     Accrued expenses and other liabilities.................................................      144         247
                                                                                               ------      ------
          Total current liabilities.........................................................      211         296
Non-current liabilities:
     Long-term debt.........................................................................    1,013       1,293
     Deferred income taxes..................................................................      274         237
     Due to parent and affiliates...........................................................      713         334
     Other liabilities......................................................................      345         783
                                                                                               ------      ------
          Total liabilities.................................................................    2,556       2,943
                                                                                               ------      ------
Commitments and contingencies (Note 12 of the Company's 1998 Annual Report to Shareholders)
Invested capital............................................................................    1,052         947
                                                                                               ------      ------
          Total liabilities and invested capital............................................   $3,608      $3,890
                                                                                               ------      ------
                                                                                               ------      ------
</TABLE>
 
                                      F-3
 <PAGE>
<PAGE>
                            MILLENNIUM AMERICA INC.
                     CONSOLIDATED STATEMENTS OF OPERATIONS
 
<TABLE>
<CAPTION>
                                                                                        YEAR ENDED DECEMBER 31,
                                                                                      ---------------------------
                                                                                      1998      1997       1996
                                                                                      ----     ------     -------
                                                                                             (IN MILLIONS)
<S>                                                                                   <C>      <C>        <C>
Net sales..........................................................................   $992     $2,714     $ 2,693
Operating costs and expenses:
     Cost of products sold.........................................................    727      1,915       2,019
     Depreciation and amortization.................................................     54        184         180
     Selling, development and administrative expense...............................    120        193         191
     Impairment of assets and related closure costs................................    --        --            58
                                                                                      ----     ------     -------
          Operating income.........................................................     91        422         245
Interest expense (primarily to a related party in 1996)............................    (69)      (128)       (253)
Interest income (primarily from a related party in 1998)...........................     24          7          28
Equity in earnings of Equistar.....................................................     40         18       --
Other expense, net.................................................................     29         19           5
                                                                                      ----     ------     -------
Income from continuing operations before provision for income taxes................    115        338          25
Provision for income taxes.........................................................    (12)      (152)        (43)
                                                                                      ----     ------     -------
Income from continuing operations..................................................    103        186         (18)
Income (loss) from discontinued operations (net of income taxes of $1, ($2) and
  ($1,028))........................................................................      1         (3)     (2,734)
                                                                                      ----     ------     -------
Net income (loss)..................................................................   $104     $  183     $(2,752)
                                                                                      ----     ------     -------
                                                                                      ----     ------     -------
</TABLE>
 
                                      F-4
<PAGE>
<PAGE>
                       REPORT OF INDEPENDENT ACCOUNTANTS
 
To the Partnership Governance Committee
of EQUISTAR CHEMICALS, LP:
 
     In our opinion, the accompanying balance sheets and the related statements
of income, of partners' capital and of cash flows present fairly, in all
material respects, the financial position of Equistar Chemicals, LP (the
'Partnership') at December 31, 1998 and 1997, and the results of its operations
and its cash flows for the year ended December 31, 1998 and for the period from
December 1, 1997 (inception) to December 31, 1997, in conformity with generally
accepted accounting principles. These financial statements are the
responsibility of the Partnership's management; our responsibility is to express
an opinion on these financial statements based on our audits. We conducted our
audits of these statements in accordance with generally accepted auditing
standards which require that we plan and perform the audit to obtain reasonable
assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements, assessing the
accounting principles used and significant estimates made by management, and
evaluating the overall financial statement presentation. We believe that our
audits provide a reasonable basis for the opinion expressed above.
 
PRICEWATERHOUSECOOPERS LLP
 
Houston, Texas
February 26, 1999
 
                                      F-5
<PAGE>
<PAGE>
                             EQUISTAR CHEMICALS, LP
                                 BALANCE SHEETS
 
<TABLE>
<CAPTION>
                                                                                           DECEMBER 31,
                                                                                        ------------------
                                                                                         1998        1997
                                                                                        ------      ------
                                                                                           (MILLIONS OF
                                                                                             DOLLARS)
<S>                                                                                     <C>         <C>
                                       ASSETS
Current assets:
     Cash and cash equivalents......................................................    $   66      $   41
     Accounts receivable:
          Trade, net................................................................       376         428
          Related parties...........................................................       111          36
     Receivables from partners......................................................         3         150
     Inventories....................................................................       549         513
     Prepaid expenses and other current assets......................................        25          24
                                                                                        ------      ------
          Total current assets......................................................     1,130       1,192
                                                                                        ------      ------
Property, plant and equipment.......................................................     5,847       3,690
Less accumulated depreciation and amortization......................................    (1,772)     (1,572)
                                                                                        ------      ------
                                                                                         4,075       2,118
Investment in PD Glycol.............................................................        55        --
Goodwill, net.......................................................................     1,151       1,139
Deferred charges and other assets...................................................       257         151
                                                                                        ------      ------
          Total assets..............................................................    $6,668      $4,600
                                                                                        ------      ------
                                                                                        ------      ------
 
                         LIABILITIES AND PARTNERS' CAPITAL
Current liabilities:
     Accounts payable:
          Trade.....................................................................    $  264      $  154
          Related parties...........................................................        15          18
     Payables to partners...........................................................         9          63
     Current maturities of long-term debt...........................................       150          36
     Other accrued liabilities......................................................       200          65
                                                                                        ------      ------
          Total current liabilities.................................................       638         336
                                                                                        ------      ------
Obligations under capital leases....................................................       205        --
Long-term debt......................................................................     1,865       1,512
Other liabilities and deferred credits..............................................        75          34
Commitments and contingencies
Partners' capital:
     Partners' capital..............................................................     3,885       3,063
     Note receivable from Lyondell LP...............................................      --          (345)
                                                                                        ------      ------
          Total partners' capital...................................................     3,885       2,718
                                                                                        ------      ------
          Total liabilities and partners' capital...................................    $6,668      $4,600
                                                                                        ------      ------
                                                                                        ------      ------
</TABLE>
 
                       See notes to financial statements.
 
                                      F-6
 <PAGE>
<PAGE>
                             EQUISTAR CHEMICALS, LP
                              STATEMENTS OF INCOME
 
<TABLE>
<CAPTION>
                                                                                               FOR THE
                                                                                             PERIOD FROM
                                                                     FOR THE YEAR         DECEMBER 1, 1997
                                                                         ENDED             (INCEPTION) TO
                                                                   DECEMBER 31, 1998      DECEMBER 31, 1997
                                                                   -----------------      -----------------
                                                                            (MILLIONS OF DOLLARS)
<S>                                                                <C>                    <C>
Sales and other operating revenues:
     Unrelated parties.........................................         $ 3,818                 $ 338
     Related parties...........................................             545                    27
                                                                        -------                ------
                                                                          4,363                   365
                                                                        -------                ------
Operating costs and expenses:
     Cost of sales:
          Unrelated parties....................................           3,313                   261
          Related parties......................................             460                    26
     Selling, general and administrative expenses..............             273                    21
     Unusual charges...........................................              35                    42
                                                                        -------                ------
                                                                          4,081                   350
                                                                        -------                ------
     Operating income..........................................             282                    15
Interest expense...............................................            (156)                  (10)
Interest income................................................              17                     2
                                                                        -------                ------
Net income.....................................................         $   143                 $   7
                                                                        -------                ------
                                                                        -------                ------
</TABLE>
 
                       See notes to financial statements.
 
                                      F-7
 <PAGE>
<PAGE>
                             EQUISTAR CHEMICALS, LP
                        STATEMENTS OF PARTNERS' CAPITAL
                      FOR THE YEAR ENDED DECEMBER 31, 1998
            AND FOR THE PERIOD FROM DECEMBER 1, 1997 (INCEPTION) TO
                               DECEMBER 31, 1997
 
<TABLE>
<CAPTION>
                                                                 LYONDELL    MILLENNIUM    OCCIDENTAL    TOTAL
                                                                 --------    ----------    ----------    ------
                                                                             (MILLIONS OF DOLLARS)
<S>                                                              <C>         <C>           <C>           <C>
Balance at December 1, 1997 (inception).......................    $   --       $   --        $   --      $   --
Capital contributions at inception:
     Net assets...............................................       763        2,048         --          2,811
     Note receivable from Lyondell LP.........................       345        --            --            345
Net income....................................................         4            3         --              7
Distributions to partners.....................................       (57)         (43)        --           (100)
                                                                 --------    ----------    ----------    ------
Balance at December 31, 1997..................................     1,055        2,008         --          3,063
                                                                 --------    ----------    ----------    ------
Capital contributions:
     Net assets...............................................     --           --            2,097       2,097
     Other....................................................       (14)           9             8           3
Net income (loss).............................................        84           64            (5)        143
Distributions to partners.....................................      (512)        (460)         (449)     (1,421)
                                                                 --------    ----------    ----------    ------
Balance at December 31, 1998..................................    $  613       $1,621        $1,651      $3,885
                                                                 --------    ----------    ----------    ------
                                                                 --------    ----------    ----------    ------
</TABLE>
 
                       See notes to financial statements.
 
                                      F-8
 <PAGE>
<PAGE>
                             EQUISTAR CHEMICALS, LP
                            STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                                                                 FOR THE
                                                                                               PERIOD FROM
                                                                       FOR THE YEAR         DECEMBER 1, 1997
                                                                           ENDED             (INCEPTION) TO
                                                                     DECEMBER 31, 1998      DECEMBER 31, 1997
                                                                     -----------------      -----------------
                                                                              (MILLIONS OF DOLLARS)
<S>                                                                  <C>                    <C>
Cash flows from operating activities:
     Net income...................................................        $   143                 $   7
     Adjustments to reconcile net income to net cash provided by
       operating activities:
          Depreciation and amortization...........................            268                    19
          Loss on disposition of property, plant and equipment....              8               --
          Equity in losses of investment in PD Glycol.............              3               --
          Changes in assets and liabilities, net of the effects of
            assets contributed:
               Decrease (increase) in accounts receivable.........            105                  (100)
               Decrease (increase) in receivables from partners...            147                  (101)
               Decrease (increase) in inventories.................            133                    (5)
               Increase in accounts payable.......................             40                   188
               (Decrease) increase in payables to partners........            (63)                   54
               Increase in other accrued liabilities..............            122                    48
               Net change in other working capital accounts.......              2                   (15)
               Other..............................................            (62)                    7
                                                                          -------                ------
                    Net cash provided by operating activities.....            846                   102
                                                                          -------                ------
Cash flows from investing activities:
     Additions to property, plant and equipment...................           (200)                  (12)
     Proceeds from disposition of property, plant and equipment...              3               --
     Contributions and advances to affiliates.....................            (15)              --
                                                                          -------                ------
                    Net cash used in investing activities.........           (212)                  (12)
                                                                          -------                ------
Cash flows from financing activities:
     Borrowings of long-term debt.................................            757                    50
     Repayments of long-term debt.................................           (290)              --
     Proceeds from payment of note receivable by Lyondell.........            345               --
     Cash contributions from partners.............................        --                          1
     Distributions to partners....................................         (1,421)                 (100)
                                                                          -------                ------
                    Net cash used in financing activities.........           (609)                  (49)
                                                                          -------                ------
Increase in cash and cash equivalents.............................             25                    41
Cash and cash equivalents at beginning of period..................             41               --
                                                                          -------                ------
Cash and cash equivalents at end of period........................        $    66                 $  41
                                                                          -------                ------
                                                                          -------                ------
</TABLE>
 
                       See notes to financial statements.
 
                                      F-9
<PAGE>
<PAGE>
                             EQUISTAR CHEMICALS, LP
                         NOTES TO FINANCIAL STATEMENTS
 
1. FORMATION OF EQUISTAR AND OPERATIONS
 
     Pursuant to a partnership agreement (the 'Partnership Agreement'), Lyondell
Chemical Company ('Lyondell') and Millennium Chemicals Inc. ('Millennium')
formed Equistar Chemicals, LP ('Equistar' or the 'Partnership'), a Delaware
limited partnership, which commenced operations on December 1, 1997. From
December 1, 1997 to May 15, 1998, the Partnership was owned 57 percent by
Lyondell and 43 percent by Millennium. Lyondell owns its interest in the
Partnership through two wholly-owned subsidiaries, Lyondell Petrochemical G.P.
Inc. ('Lyondell GP') and Lyondell Petrochemical L.P. Inc. ('Lyondell LP').
Millennium also owns its interest in the Partnership through two wholly-owned
subsidiaries, Millennium Petrochemicals GP LLC ('Millennium GP') and Millennium
Petrochemicals LP LLC ('Millennium LP').
 
     On May 15, 1998, the Partnership was expanded with the contribution of
certain assets from Occidental Petroleum Corporation ('Occidental') (see Note
3). These assets include the ethylene, propylene and ethylene oxide ('EO') and
EO derivatives businesses and certain pipeline assets held by Oxy Petrochemicals
Inc. ('Oxy Petrochemicals'), a 50 percent interest in a joint venture between
PDG Chemical Inc. ('PDG Chemical') and Du Pont de Nemours and Company ('PD
Glycol'), and a lease to the Partnership of the Lake Charles, Louisiana olefins
plant and related pipelines held by Occidental Chemical Corporation ('Occidental
Chemical') (collectively, the 'Occidental Contributed Business'). Occidental
Chemical, Oxy Petrochemicals and PDG Chemical are wholly-owned, indirect
subsidiaries of Occidental. The Occidental Contributed Business included olefins
plants at Corpus Christi and Chocolate Bayou, Texas, EO/ethylene glycol and EO
derivatives businesses located at Bayport, Texas, Occidental's 50 percent
ownership of PD Glycol, which operates a polyglycol plant at Beaumont, Texas,
1,430 miles of owned and leased ethylene/propylene pipelines, and the lease to
the Partnership of the Lake Charles, Louisiana olefins plant and related
pipelines.
 
     In exchange for the Occidental Contributed Business, two subsidiaries of
Occidental were admitted as limited partners and a third subsidiary was admitted
as a general partner in the Partnership for an aggregate partnership interest of
29.5 percent. In addition, the Partnership assumed approximately $205 million of
Occidental indebtedness and the Partnership issued a promissory note to an
Occidental subsidiary in the amount of $419.7 million, which was subsequently
paid in cash in June 1998. In connection with the contribution of the Occidental
Contributed Business and the reduction of Millennium's and Lyondell's ownership
interests in the Partnership, the Partnership also issued a promissory note to
Millennium LP in the amount of $75 million, which was subsequently paid in June
1998. These payments are included in distributions to partners in the
accompanying statements of partners' capital and of cash flows. The
consideration paid for the Occidental Contributed Business was determined based
upon arms-length negotiations between Lyondell, Millennium, and Occidental. In
connection with the transaction, the Partnership and Occidental also entered
into a long-term agreement for the Partnership to supply the ethylene
requirements for Occidental Chemical's U.S. manufacturing plants.
 
     After completion of this transaction, the Partnership is owned 41 percent
by Lyondell, 29.5 percent by Millennium and 29.5 percent by Occidental, through
its wholly-owned subsidiaries Occidental Petrochem Partner GP Inc. ('Occidental
GP'), Occidental Petrochem Partner 1, Inc. ('Occidental LP1') and Occidental
Petrochem Partner 2, Inc. ('Occidental LP2').
 
     The Partnership owns and operates the petrochemicals and polymers
businesses contributed by Lyondell, Millennium, and Occidental (the 'Contributed
Businesses') which consist of 20 manufacturing facilities on the U.S. Gulf Coast
and in the U.S. Midwest. The petrochemicals segment manufactures and markets
olefins, oxygenated chemicals, aromatics and specialty chemicals. Olefins
include ethylene, propylene and butadiene, and oxygenated chemicals include
ethylene oxide, ethylene glycol, ethanol and methyl tertiary butyl ether
('MTBE'). The petrochemicals segment also includes the production and sale of
aromatics including benzene and toluene. The polymers segment manufactures and
markets polyolefins, including high-density polyethylene ('HDPE'), low-density
polyethylene ('LDPE'), linear
 
                                      F-10
 <PAGE>
<PAGE>
low-density polyethylene ('LLDPE'), polypropylene, and performance polymers, all
of which are used in the production of a wide variety of consumer and industrial
products. The performance polymers include enhanced grades of polyethylene,
including wire and cable resins, concentrates and compounds, and polymeric
powders.
 
     The Partnership Agreement provides that Equistar is governed by a
Partnership Governance Committee consisting of nine representatives, three
appointed by each partner. Most of the significant decisions of the Partnership
Governance Committee require unanimous consent, including approval of the
Partnership's Strategic Plan and annual updates thereof.
 
     Pursuant to the Partnership Agreement, net income is allocated among the
partners on a pro rata basis based on their percentage ownership of the
Partnership. Distributions are made to the partners based on their percentage
ownership of the Partnership. Additional cash contributions required by the
Partnership will also be based on the partners' percentage ownership of the
Partnership.
 
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
     Revenue Recognition. Revenue from product sales is generally recognized
upon delivery of products to the customer.
 
     Cash and Cash Equivalents. Cash equivalents consist of highly liquid debt
instruments such as certificates of deposit, commercial paper and money market
accounts purchased with an original maturity date of three months or less. Cash
equivalents are stated at cost, which approximates fair value. The Partnership's
policy is to invest cash in conservative, highly rated instruments and limit the
amount of credit exposure to any one institution. The Partnership performs
periodic evaluations of the relative credit standing of these financial
institutions which are considered in the Partnership's investment strategy.
 
     The Partnership has no requirements for compensating balances in a specific
amount at a specific point in time. The Partnership does maintain compensating
balances for some of its banking services and products. Such balances are
maintained on an average basis and are solely at the Partnership's discretion.
As a result, none of the Partnership's cash is restricted.
 
     Accounts Receivable. The Partnership sells its products primarily to
companies in the petrochemicals and polymers industries. The Partnership
performs ongoing credit evaluations of its customers' financial condition and,
in certain circumstances, requires letters of credit from them. The
Partnership's allowance for doubtful accounts, which is reflected in the
accompanying balance sheet as a reduction of accounts receivable, totaled $3
million at December 31, 1998. The Partnership had no allowance for doubtful
accounts recorded at December 31, 1997.
 
     Inventories. Inventories are stated at the lower of cost or market. Cost is
determined on the last-in, first-out ('LIFO') basis except for materials and
supplies, which are valued at average cost.
 
     Property, Plant and Equipment. Property, plant and equipment are recorded
at cost. Depreciation of property, plant and equipment is computed using the
straight-line method over the estimated useful lives of the related assets,
ranging from 5 to 30 years.
 
     Upon retirement or sale, the Partnership removes the cost of the assets and
the related accumulated depreciation from the accounts and reflects any
resulting gains or losses in the statement of income. The Partnership's policy
is to capitalize interest cost incurred on debt during the construction of major
projects exceeding one year.
 
     Turnaround Maintenance and Repair Expenses. Cost of major repairs and
maintenance incurred in connection with turnarounds of units at the
Partnership's manufacturing facilities are deferred and amortized on a
straight-line basis until the next planned turnaround, generally five to seven
years.
 
     Deferred Software Costs. Costs to purchase and develop software for
internal use are deferred and amortized on a straight-line basis over 10 years.
The Partnership amortized $6 million and less than $1 million of deferred
software costs for the year ended December 31, 1998 and during the period from
December 1, 1997 (inception) to December 31, 1997, respectively.
 
                                      F-11
 <PAGE>
<PAGE>
     Goodwill. Goodwill includes goodwill contributed by Millennium and goodwill
recorded in connection with the contribution of Occidental's assets. Goodwill is
being amortized using the straight-line method over forty years. Management
periodically evaluates goodwill for impairment based on the anticipated future
cash flows attributable to the related operations. Such expected cash flows, on
an undiscounted basis, are compared to the carrying value of the tangible and
intangible assets, and if impairment is indicated, the carrying value of
goodwill, and if necessary other related assets, is adjusted. Management
believes that no impairment exists at December 31, 1998. The Partnership
amortized $31 million and $3 million of goodwill for the year ended December 31,
1998 and during the period from December 1, 1997 (inception) to December 31,
1997, respectively. Accumulated amortization of goodwill was $166 million and
$135 million at December 31, 1998 and 1997, respectively.
 
     Investment in PD Glycol. Equistar holds a 50 percent interest in a joint
venture with Du Pont de Nemours and Company that owns an ethylene glycol
facility in Beaumont, Texas. This investment was contributed by Occidental in
1998. The investment in PD Glycol is accounted for under the equity method.
 
     Environmental Remediation Costs. Expenditures related to investigation and
remediation of contaminated sites, which include operating facilities and waste
disposal sites, are accrued when it is probable a liability has been incurred
and the amount of the liability can reasonably be estimated. Estimates have not
been discounted to present value. Environmental remediation costs are expensed
or capitalized in accordance with generally accepted accounting principles.
 
     Pension and Other Postretirement Benefit Plans. During 1998, the
Partnership adopted Statement of Financial Accounting Standards ('SFAS') No.
132, Employers' Disclosures about Pensions and Other Retirement Benefits. The
provisions of SFAS No. 132 revise employers' disclosures about pension and other
postretirement benefit plans. It does not change the measurement or recognition
of these plans. SFAS No. 132 standardizes the disclosure requirements for these
plans, to the extent practicable.
 
     Exchanges. Finished product exchange transactions, which involve
homogeneous commodities in the same line of business and do not involve the
payment or receipt of cash, are not accounted for as purchases and sales. Any
resulting volumetric exchange balances are accounted for as inventory in
accordance with the normal LIFO valuation policy. Exchanges settled through
payment and receipt of cash are accounted for as purchases and sales.
 
     Income Taxes. The Partnership is not subject to federal income taxes as
income is reportable directly by the individual partners; therefore, there is no
provision for income taxes in the accompanying financial statements.
 
     Use of Estimates. The preparation of financial statements in conformity
with generally accepted accounting principles requires management to make
estimates and assumptions that affect the reported amounts of assets and
liabilities and disclosure of contingent assets and liabilities at the date of
the financial statements and the reported amount of revenues and expenses during
the reporting period. Actual results could differ from those estimates.
 
     Segment and Related Information. In 1998, the Partnership adopted SFAS No.
131, Disclosures about Segments of an Enterprise and Related Information. SFAS
No. 131 supercedes SFAS No. 14, Financial Reporting for Segments of a Business
Enterprise, replacing the 'industry segment' approach with the 'management'
approach. The management approach designates the internal organization that is
used by management for making operating decisions and assessing performance as
the source of the Partnership's reportable segments. SFAS No. 131 also requires
disclosures about products and services, geographic areas and major customers.
The adoption of SFAS No. 131 did not affect the results of operations or the
financial position of the Partnership (see Note 18).
 
     Reclassifications. Certain 1997 amounts have been restated to conform to
classifications adopted in 1998.
 
                                      F-12
 <PAGE>
<PAGE>
3. ADDITION OF OCCIDENTAL CONTRIBUTED BUSINESS
 
     On May 15, 1998, the Partnership was expanded with the contribution of
certain assets from Occidental. The acquisition was accounted for using the
purchase method of accounting and, accordingly, the results of operations for
these assets are included in the accompanying statement of income prospectively
from May 15, 1998. The consideration paid for the Occidental Contributed
Business was approximately $2.1 billion and was allocated to the assets
contributed and liabilities assumed based on the estimated fair values of such
assets and liabilities at the date of the contribution. The fair value of the
assets contributed and liabilities assumed by the Partnership on May 15, 1998 is
as follows:
 
<TABLE>
<CAPTION>
                                                                  (MILLIONS OF DOLLARS)
<S>                                                               <C>
Total current assets...........................................          $   281
Property, plant and equipment..................................            1,964
Investment in PD Glycol........................................               58
Goodwill.......................................................               43
Deferred charges and other assets..............................               49
                                                                         -------
     Total assets..............................................          $ 2,395
                                                                         -------
                                                                         -------
Other current liabilities......................................          $    79
Long-term debt.................................................              205
Other liabilities and deferred credits.........................               14
Partners' capital..............................................            2,097
                                                                         -------
     Total liabilities and partners' capital...................          $ 2,395
                                                                         -------
                                                                         -------
</TABLE>
 
     The unaudited pro forma combined historical results of the Partnership as
if the Occidental Contributed Business had been contributed on January 1, 1998
is as follows:
 
<TABLE>
<CAPTION>
                                                                   FOR THE YEAR ENDED
                                                                    DECEMBER 31, 1998
                                                                  ---------------------
                                                                  (MILLIONS OF DOLLARS)
<S>                                                               <C>
Sales and other operating revenues.............................          $ 4,869
Unusual charges................................................               35
Operating income...............................................              320
Net income.....................................................              154
</TABLE>
 
     The unaudited pro forma data presented above is not necessarily indicative
of the results of operations of the Partnership that would have occurred had
such transaction actually been consummated as of January 1, 1998, nor are they
necessarily indicative of future results.
 
4. SUPPLEMENTAL CASH FLOW INFORMATION
 
<TABLE>
<CAPTION>
                                                                                     1998         1997
                                                                                     ----         ----
                                                                                       (MILLIONS OF
                                                                                         DOLLARS)
<S>                                                                                  <C>          <C>
Cash paid for interest............................................................   $154         $--
                                                                                     ----         ----
                                                                                     ----         ----
Noncash investing and financing activities:
     Noncash adjustments to contributed capital...................................   $  3         $--
     Inventory transfer from PD Glycol............................................     15          --
                                                                                     ----         ----
                                                                                     ----         ----
</TABLE>
 
                                      F-13
 <PAGE>
<PAGE>
     Historical cost of assets contributed and liabilities assumed by the
Partnership in December 1997 (inception):
 
<TABLE>
<S>                                                               <C>
Total current assets...........................................          $   948
Property, plant and equipment, net.............................            2,121
Goodwill, net..................................................            1,142
Deferred charges and other assets..............................              158
                                                                         -------
     Total assets..............................................          $ 4,369
                                                                         -------
                                                                         -------
Current maturities of long-term debt...........................          $    36
Other current liabilities......................................               17
Long-term debt.................................................            1,462
Other liabilities and deferred credits.........................               43
Partners' capital..............................................            3,156
Note receivable from Lyondell LP...............................             (345)
                                                                         -------
     Total liabilities and partners' capital...................          $ 4,369
                                                                         -------
                                                                         -------
</TABLE>
 
5. FINANCIAL INSTRUMENTS
 
     The fair value of all financial instruments included in current assets and
current liabilities, including cash and cash equivalents, accounts receivable,
accounts payable, and accrued liabilities approximated their carrying value due
to their short maturity. Based on the borrowing rates currently available to the
Partnership for debt with terms and average maturities similar to the
Partnership's debt portfolio, the fair value of the Partnership's long-term
debt, including amounts due within one year, was approximately $2.3 billion and
$1.5 billion at December 31, 1998 and 1997, respectively.
 
     The Partnership had issued letters of credit totaling $2.6 million and $4
million at December 31, 1998 and 1997, respectively.
 
6. RELATED PARTY TRANSACTIONS
 
     Loans to Millennium and Occidental. In connection with Occidental's entry
into Equistar in May 1998, Equistar executed promissory notes to Millennium and
Occidental in the principal amounts of $75.0 million and $419.7 million,
respectively. Each of the notes provides for the annual accrual of interest
(based on a year of 360 days and actual days elapsed) at a rate equal to LIBOR
plus .6 percent. These notes were paid in full in June 1998. Interest expense
incurred on these notes during 1998 was $3 million.
 
     Note Receivable from Lyondell LP. Upon formation of the Partnership,
Lyondell LP contributed capital to the Partnership in the form of a $345 million
promissory note (the 'Lyondell Note'). The Lyondell Note bears interest at LIBOR
plus a market spread. The note was repaid in full by Lyondell in July 1998.
Interest income accrued on the Lyondell note totaled $12.8 million and $1.75
million during 1998 and during the period from December 1, 1997 (inception) to
December 31, 1997, respectively.
 
     Shared Services Agreement with Lyondell. Lyondell provides certain
corporate, general and administrative services to the Partnership, including
legal, tax, treasury, risk management and other services pursuant to a shared
services agreement. During the year ended December 31, 1998, Lyondell charged
the Partnership $3 million for these services. During the period December 1,
1997 (inception) to December 31, 1997, charges from Lyondell were less than $1
million. As part of the shared services agreement, the Partnership provides
certain general and administrative services to Lyondell, such as health, safety
and environmental services, human resource services, information services and
legal services. During the year ended December 31, 1998 and during the period
December 1, 1997 (inception) to December 31, 1997, the Partnership charged
Lyondell less than $1 million for these services.
 
     Shared Services and Shared-Site Agreements with Millennium. The Partnership
and Millennium have entered into a variety of operating, manufacturing and
technical service agreements related to the business of Equistar and the vinyl
acetate monomers, acetic acid, synthesis gas and methanol businesses retained by
Millennium Petrochemicals. These agreements include the provision by the
Partnership to
 
                                      F-14
 <PAGE>
<PAGE>
Millennium Petrochemicals of materials management, certain utilities,
administrative office space, health, safety and environmental services and
computer services. During the year ended December 31, 1998, the Partnership
charged Millennium Petrochemicals $5 million for these services. During the
period from December 1, 1997 (inception) to December 31, 1997, charges to
Millennium Petrochemicals were less than $1 million. These agreements also
include the provision by Millennium Petrochemicals to the Partnership of certain
operational services, including waste water treatment and barge dock access.
During the year ended December 31, 1998 and during the period December 1, 1997
(inception) to December 31, 1997, Millennium Petrochemicals charged the
Partnership less than $1 million for these services.
 
     Operating Agreement with Occidental Chemical Corporation. On May 15, 1998,
Occidental Chemical and the Partnership entered into an Operating Agreement (the
'Operating Agreement') whereby Occidental Chemical agreed to operate and
maintain the Occidental Contributed Business and to cause third-parties to
continue to provide equipment, products and commodities to those businesses upon
substantially the same terms and conditions as provided prior to the transfer.
Under the terms of the Operating Agreement, the Partnership agreed to reimburse
Occidental Chemical for its cost in connection with the services provided to the
Partnership, and the Partnership agreed to pay Occidental Chemical an
administrative fee. The Operating Agreement terminated in accordance with its
terms on June 1, 1998. During the term of the Operating Agreement, the
Partnership paid Occidental Chemical an administrative fee of $1 million.
 
     Transition Services Agreement with Occidental Chemical. On June 1, 1998,
Occidental Chemical and the Partnership entered into a Transition Services
Agreement (the 'TSA'). Under the terms of the TSA, Occidental Chemical agreed to
provide the Partnership certain services in connection with the Occidental
Contributed Business, including services related to accounting, payroll, office
administration, marketing, transportation, purchasing and procurement,
management, human resources, customer service, technical services and others.
Between June 1, 1998 and December 31, 1998, the Partnership expensed $6 million
in connection with services provided pursuant to the TSA. The TSA expires by its
terms on June 1, 1999.
 
     Occidental Chemical Ethylene Sales Agreement. The Partnership and
Occidental Chemical entered into a Sales Agreement, dated May 15, 1998 (the
'Ethylene Sales Agreement'). Under the terms of the Ethylene Sales Agreement,
Occidental Chemical has agreed to purchase an annual minimum amount of ethylene
from the Partnership equal to 100 percent of the ethylene feedstock requirements
of Occidental Chemical's United States plants (estimated to be 2 billion pounds
per year at the time of the signing of the agreement) less any quantities up to
250 million pounds tolled in accordance with the provisions of such agreement.
The Partnership's maximum supply obligation in any calendar year under the
Ethylene Sales Agreement is 2.55 billion pounds. Upon three years notice from
either party to the other, the Partnership's maximum supply obligation in any
calendar year under the Ethylene Sales Agreement may be 'phased down' as set
forth in the agreement, provided that no phase down may occur prior to January
1, 2009. In accordance with the phase down provisions of the agreement, the
annual minimum requirements set forth in the agreement must be phased down over
at least a five year period so that the annual required minimum can not decline
to zero prior to December 31, 2013 unless certain specified force majeure events
occur. The Ethylene Sales Agreement provides for an ethylene sales price that is
generally reflective of market prices and will be determined pursuant to a
formula using the Partnership's sales price to third parties and several
published market price indices. During the period from May 15, 1998 to December
31, 1998, the Partnership charged Occidental Chemical $171 million under the
Ethylene Sales Agreement.
 
     Product Sales to Millennium. The Partnership sells ethylene to Millennium
at market-related prices pursuant to an agreement entered into in connection
with the formation of Equistar. Under this agreement, Millennium is required to
purchase 100 percent of its ethylene requirements for its La Porte, Texas
facility (estimated to be 300 million pounds per year), up to a maximum of 330
million pounds per year. Millennium has the option to increase the amount
purchased to up to 400 million pounds per year beginning January 1, 2001. The
initial term of the contract expires December 1, 2000 and thereafter, the
contract automatically renews annually. Either party may terminate on one year's
notice, except that if Millennium elects to increase its purchases under the
contract, a party must provide two
 
                                      F-15
 <PAGE>
<PAGE>
year's notice of termination. The pricing terms of this agreement are similar to
the Ethylene Sales Agreement with Occidental Chemical. The Partnership charged
Millennium $41 million and $4 million for ethylene for 1998 and December 1997,
respectively.
 
     Product Sales to Lyondell. Lyondell acquired its intermediate chemicals and
derivatives business through the acquisition of ARCO Chemical Company effective
August 1, 1998. Sales to Lyondell, primarily for ethylene, propylene, MTBE,
benzene and alkylate, totaled $97 million for the period from August 1, 1998 to
December 31, 1998, and were based on price terms generally reflective of market.
 
     Transactions with LCR. Lyondell's rights and obligations under the terms of
its product sales and feedstock purchase agreements with LYONDELL-CITGO Refining
LP ('LCR'), a joint venture investment of Lyondell, were assigned to the
Partnership. Accordingly, certain refinery products are sold to the Partnership
as feedstocks, and certain olefins by-products are sold to LCR for processing
into gasoline. Sales to LCR were $236 million and $27 million and purchases from
LCR were $131 million and $10 million for the year ended December 31, 1998 and
for the period from December 1, 1997 (inception) to December 31, 1997,
respectively. The Partnership also assumed certain tolling arrangements as well
as terminalling and storage obligations between Lyondell and LCR and performs
certain marketing services for LCR. Aggregate charges under these various
service agreements of $15 million were made to LCR by the Partnership with
respect to 1998. No charges were made during December 1997. All of the
agreements between LCR and the Partnership are on terms generally representative
of prevailing market prices. The Partnership also has a shared services
agreement with LCR to provide LCR with information services, including mainframe
processing and maintenance. Net charges to LCR by the Partnership for the shared
services agreement were less than $1 million during 1998. No charges were made
during December 1997.
 
     Transactions with Lyondell Methanol. The Partnership provides operating and
other services for Lyondell Methanol Company, L.P. ('Lyondell Methanol') under
the terms of existing agreements that were assumed by Equistar from Lyondell,
including the lease to Lyondell Methanol by the Partnership of the real property
on which its methanol plant is located. Pursuant to the terms of those
agreements, Lyondell Methanol pays the Partnership a management fee and will
reimburse certain expenses of the Partnership at cost. Management fees charged
by the Partnership to Lyondell Methanol totaled $6 million for the year ending
December 31, 1998 and less than $1 million during the period from December 1,
1997 (inception) to December 31, 1997. The Partnership sells natural gas to
Lyondell Methanol at prices generally representative of its cost. Purchases by
Lyondell Methanol of natural gas feedstock from the Partnership totaled $44
million and $4 million for the year ended December 31, 1998 and during the
period from December 1, 1997 (inception) to December 31, 1997, respectively.
Lyondell Methanol sells all of its products to Equistar. For the year ending
December 31, 1998 and during the period from December 1, 1997 (inception) to
December 31, 1997, purchases from Lyondell Methanol were $103 million and $15
million, respectively.
 
     Related Party Leases. As part of their shared services agreement with the
Partnership, Millennium subleases from the Partnership certain administrative
office space at a monthly rent of $42,000.
 
7. ACCOUNTS RECEIVABLE
 
     In December 1998, the Partnership entered into a purchase agreement with an
independent issuer of receivables-backed commercial paper. Under the terms of
the agreement, the Partnership agreed to sell on an ongoing basis and without
recourse, designated accounts receivable. To maintain the balance of the
accounts receivable sold, the Partnership is obligated to sell new receivables
as existing receivables are collected. The agreement expires in December 1999.
 
     At December 31, 1998, the Partnership's gross accounts receivable that had
been sold to the purchasers aggregated $130 million. This amount has been
reported as operating cash flows in the statement of cash flows. Costs related
to the sale are included in selling, general and administrative expenses in the
statement of income.
 
                                      F-16
 <PAGE>
<PAGE>
8. INVENTORIES
 
     Inventories at December 31, 1998 and 1997 consisted of the following:
 
<TABLE>
<CAPTION>
                                                                           1998         1997
                                                                           ----         ----
                                                                             (MILLIONS OF
                                                                               DOLLARS)
<S>                                                                        <C>          <C>
Raw materials...........................................................   $149         $160
Work-in-process.........................................................     11            5
Finished goods..........................................................    301          282
Materials and supplies..................................................     88           66
                                                                           ----         ----
                                                                           $549         $513
                                                                           ----         ----
                                                                           ----         ----
</TABLE>
 
     For the year ending December 31, 1998, cost of sales increased by less than
$1 million associated with the reduction of LIFO inventories. For the period
from December 1, 1997 (inception) to December 31, 1997, cost of sales increased
by approximately $1 million associated with the reduction in LIFO inventories.
The excess of the current cost of inventories over book value was approximately
$103 million at December 31, 1997.
 
9. PROPERTY, PLANT AND EQUIPMENT, NET
 
     The components of property, plant and equipment, at cost, and the related
accumulated depreciation at December 31, 1998 and 1997 were as follows:
 
<TABLE>
<CAPTION>
                                                                         1998           1997
                                                                        ------         ------
                                                                        (MILLIONS OF DOLLARS)
<S>                                                                     <C>            <C>
Manufacturing facilities and equipment...............................   $5,344         $3,489
Manufacturing equipment acquired under capital leases................      236           --
Construction projects in progress....................................      189            127
Land.................................................................       78             74
                                                                        ------         ------
     Total property, plant and equipment.............................    5,847          3,690
Less accumulated depreciation........................................    1,772          1,572
                                                                        ------         ------
     Property, plant and equipment, net..............................   $4,075         $2,118
                                                                        ------         ------
                                                                        ------         ------
</TABLE>
 
     Depreciation expense for the year ending December 31, 1998 and for the
period from December 1, 1997 (inception) to December 31, 1997 was $200 million
and $15 million, respectively. At December 31, 1998, $10 million of the
accumulated depreciation reported in the accompanying balance sheet related to
the manufacturing equipment acquired under capital leases that was contributed
by Occidental in 1998.
 
     In July 1998, the depreciable lives of certain assets were increased from a
range of 5 to 25 years to a range of 5 to 30 years. This change was accounted
for as a change in accounting estimate and resulted in a $33 million decrease in
depreciation expense for 1998.
 
10. DEFERRED CHARGES AND OTHER ASSETS
 
     Deferred charges and other assets at December 31, 1998 and 1997 were as
follows:
 
<TABLE>
<CAPTION>
                                                                           1998         1997
                                                                           ----         ----
                                                                             (MILLIONS OF
                                                                               DOLLARS)
<S>                                                                        <C>          <C>
Deferred turnaround costs, net..........................................   $ 84         $ 66
Deferred software costs, net............................................     70           44
Deferred pension asset..................................................     30           23
Other...................................................................     73           18
                                                                           ----         ----
     Total deferred charges and other assets............................   $257         $151
                                                                           ----         ----
                                                                           ----         ----
</TABLE>
 
                                      F-17
 <PAGE>
<PAGE>
11. OTHER ACCRUED LIABILITIES
 
     Other accrued liabilities at December 31, 1998 and 1997 were as follows:
 
<TABLE>
<CAPTION>
                                                                           1998         1997
                                                                           ----         ----
                                                                             (MILLIONS OF
                                                                               DOLLARS)
<S>                                                                        <C>          <C>
Accrued property taxes..................................................   $ 76         $  4
Accrued freight.........................................................     22            8
Accrued payroll costs...................................................     44           19
Accrued interest........................................................     18          --
Accrued severance and other costs related to formation of the
  Partnership...........................................................      3           27
Other...................................................................     37            7
                                                                           ----         ----
     Total other accrued liabilities....................................   $200         $ 65
                                                                           ----         ----
                                                                           ----         ----
</TABLE>
 
12. LONG-TERM DEBT AND FINANCING ARRANGEMENTS
 
     Long-term debt at December 31, 1998 and 1997 was comprised of the
following:
 
<TABLE>
<CAPTION>
                                                                         1998           1997
                                                                        ------         ------
                                                                        (MILLIONS OF DOLLARS)
<S>                                                                     <C>            <C>
Bank credit facilities:
     5-year term credit facility.....................................   $1,150         $  800
     $500 million credit agreement...................................      152           --
Other debt obligations:
     Medium-term notes (2000 - 2005).................................      163            194
     10.00% Notes due in 1999........................................      150            150
     9.125% Notes due in 2002........................................      100            100
     6.5% Notes due in 2006..........................................      150            150
     7.55% Debentures due in 2026....................................      150            150
     Other...........................................................     --                4
                                                                        ------         ------
          Total long-term debt.......................................    2,015          1,548
Less current maturities..............................................      150             36
                                                                        ------         ------
     Long-term debt, net.............................................    1,865          1,512
Capital lease obligations (5.89% due in 2000)........................      205           --
                                                                        ------         ------
          Total long-term debt and lease obligations.................   $2,070         $1,512
                                                                        ------         ------
                                                                        ------         ------
</TABLE>
 
     Aggregate maturities of long-term debt during the five years subsequent to
December 31, 1998 are as follows: 1999 - $302 million; 2000 - $247 million;
2001 - $90 million; 2002 - $1.251 billion; 2003 - $29 million. All of the above
debt is guaranteed by the partners.
 
     The medium-term notes mature at various dates from 2000 to 2005 and have a
weighted average interest rate of 9.87 percent and 9.83 percent at December 31,
1998 and 1997, respectively.
 
     The Partnership has a five-year, $1.25 billion credit facility (the
'Facility') with a group of banks expiring November 2002. Borrowings under the
Facility bear interest at either the Federal Funds rate plus 1/2 of 1 percent,
LIBOR plus 1/2 of 1 percent, a fixed rate offered by one of the sponsoring banks
or interest rates that are based on a competitive auction feature wherein the
interest rate can be established by competitive bids submitted by the sponsoring
banks, depending on the type of borrowing made under the Facility. Borrowings
under the Facility had a weighted average interest rate of 5.8 percent and 5.7
percent at December 31, 1998 and 1997, respectively.
 
     On June 12, 1998, the Partnership entered into a $500 million credit
agreement consisting of a $250 million revolving credit facility and a $250
million one-year term facility. Borrowings under the $500 million credit
agreement bear interest at either the Federal Funds rate plus 1/2 of 1 percent,
LIBOR plus 0.625 percent, a fixed rate offered by one of the sponsoring banks or
interest rates that are based on a competitive auction feature wherein the
interest rate can be established by competitive bids
 
                                      F-18
 <PAGE>
<PAGE>
submitted by the sponsoring banks. At December 31, 1998, the weighted average
interest rate for borrowings under the $500 million credit agreement was 6.1
percent.
 
     The Facility and the $500 million credit agreement (the 'Bank Credit
Facilities') are available for working capital and general purposes as needed
and contain covenants relating to liens, sale and leaseback transactions, debt
incurrence, leverage and interest coverage ratios, sales of assets and mergers
and consolidations.
 
     In February 1999, the Partnership issued $900 million of debt securities.
The debt securities include $300 million of 8.50 percent Notes, which will
mature on February 15, 2004, and $600 million of 8.75 percent Notes, which will
mature on February 15, 2009. The Partnership intends to use the net proceeds
from this offering (i) to repay the $205 million outstanding under a capitalized
lease obligation relating to the Partnership's Corpus Christi facility, (ii) to
repay the outstanding balance under the $500 million credit agreement, after
which the $500 million credit agreement will be terminated, (iii) to repay the
outstanding $150 million, 10.0 percent Notes due in June 1999, upon maturity and
(iv) to the extent of the remaining net proceeds, reduce outstanding borrowings
under the Facility and for Partnership working capital. Outstanding borrowings
under the Partnership's $500 million credit agreement that are payable in 1999
are included as long-term obligations of the Partnership in the accompanying
balance sheet at December 31, 1998 based on the expectation that these
borrowings will be refinanced as described above.
 
13. UNUSUAL CHARGES
 
     In December 1997, the Partnership recorded $42 million of unusual charges
related to the formation of the Partnership. These charges included severance
and other costs related to a workforce reduction (approximately 430 employees)
that resulted from the consolidation of the businesses contributed to the
Partnership ($30 million), various closing costs ($6 million), and various other
charges ($6 million). Approximately $15 million of these charges were paid in
1997 and $27 million were included in other accrued liabilities at December 31,
1997. During the year ended December 31, 1998, approximately $24 million of
these charges were paid and $3 million were included in other accrued
liabilities at December 31, 1998.
 
     During 1998, the Partnership recorded and paid $35 million of unusual
charges related to its initial formation and the addition of Occidental to the
Partnership. These charges included transition personnel costs ($14 million),
costs associated with the consolidation of certain operations and facilities
($11 million), operating and transition services provided by Occidental Chemical
($7 million), various closing costs ($2 million), and other miscellaneous
charges ($1 million).
 
14. LEASES
 
     At December 31, 1998, future minimum lease payments for capital and
operating leases with noncancelable lease terms in excess of one year were as
follows:
 
<TABLE>
<CAPTION>
                                                                            CAPITAL    OPERATING
                                                                            -------    ---------
                                                                                (MILLIONS OF
                                                                                  DOLLARS)
<S>                                                                         <C>        <C>
1999.....................................................................    $  13       $ 101
2000.....................................................................      208          74
2001.....................................................................     --            58
2002.....................................................................     --            44
2003.....................................................................     --            38
Thereafter...............................................................     --           336
                                                                            -------    ---------
     Total minimum lease payments........................................      221       $ 651
                                                                                       ---------
                                                                                       ---------
Imputed interest.........................................................      (16)
                                                                            -------
Present value of minimum lease payments..................................    $ 205
                                                                            -------
                                                                            -------
</TABLE>
 
     Operating lease net rental expense was $110 million for the year ending
December 31, 1998 and $11 million for the period from December 1, 1997
(inception) to December 31, 1997.
 
                                      F-19
 <PAGE>
<PAGE>
     The Partnership is party to various unconditional purchase obligation
contracts as a purchaser for product and services. At December 31, 1998, future
minimum payments under these contracts with noncancelable contract terms in
excess of one year were as follows:
 
<TABLE>
<CAPTION>
                                                                                   AMOUNT
                                                                            ---------------------
                                                                            (MILLIONS OF DOLLARS)
<S>                                                                         <C>
1999.....................................................................           $  29
2000.....................................................................              28
2001.....................................................................              24
2002.....................................................................              23
2003.....................................................................              23
Thereafter...............................................................             142
                                                                                   ------
     Total minimum contract payments.....................................           $ 269
                                                                                   ------
                                                                                   ------
</TABLE>
 
     The Partnership's total purchases under these agreements were $33 million
for the year ending December 31, 1998 and $3 million during the period from
December 1, 1997 (inception) to December 31, 1997.
 
15. RETIREMENT PLANS
 
     All full-time regular employees of the Partnership are covered by defined
benefit pension plans sponsored by the Partnership. The plans became effective
on January 1, 1998, except for union represented employees formerly employed by
Millennium, whose plans were contributed to the Partnership on December 1, 1997,
and union represented employees formerly employed by Occidental, whose plans
were contributed to the Partnership on May 15, 1998. In connection with the
formation of the Partnership, there were no pension assets or obligations
contributed to the Partnership, except for the union represented plans described
above. Retirement benefits are based on years of service and the employee's
highest three consecutive years of compensation during the last ten years of
service. The funding policy for these plans is to make periodic contributions as
required by applicable law. The Partnership accrues pension costs based on an
actuarial valuation and funds the plans through contributions to pension trust
funds. The Partnership also has unfunded supplemental nonqualified retirement
plans which provide pension benefits for certain employees in excess of the tax
qualified plans' limits.
 
                                      F-20
 <PAGE>
<PAGE>
     The following table provides a reconciliation of benefit obligations, plan
assets and funded status of the retirement plans at December 31, 1998 and 1997:
 
<TABLE>
<CAPTION>
                                                                                    1998          1997
                                                                                    -----         -----
                                                                                       (MILLIONS OF
                                                                                         DOLLARS)
<S>                                                                                 <C>           <C>
Change in benefit obligation:
     Benefit obligation, January 1...............................................   $  21         $ --
     Benefit obligation contributed at inception of Partnership..................      --           21
     Benefit obligation contributed by Occidental................................      46          --
     Service cost................................................................      16          --
     Interest cost...............................................................       5          --
     Actuarial loss (gain).......................................................       5          --
     Benefits paid...............................................................      (5)         --
                                                                                    -----         -----
     Benefit obligation, December 31.............................................   $  88         $  21
                                                                                    -----         -----
                                                                                    -----         -----
Change in plan assets:
     Fair value of plan assets, January 1........................................   $  40         $--
     Fair value of plan assets contributed at inception of Partnership...........    --              40
     Fair value of plan assets contributed by Occidental.........................      51          --
     Actual return of plan assets................................................       1          --
     Partnership contributions...................................................       1          --
     Benefits paid...............................................................      (5)         --
                                                                                    -----         -----
     Fair value of plan assets, December 31......................................   $  88         $  40
                                                                                    -----         -----
                                                                                    -----         -----
Funded status....................................................................   $--           $  19
Unrecognized actuarial loss (gain)...............................................      13             4
                                                                                    -----         -----
     Net amount recognized.......................................................   $  13         $  23
                                                                                    -----         -----
                                                                                    -----         -----
Amounts recognized in the Balance Sheets consist of:
     Prepaid benefit cost........................................................   $  30         $  23
     Accrued benefit liability...................................................     (17)         --
                                                                                    -----         -----
     Net amount recognized.......................................................   $  13         $  23
                                                                                    -----         -----
                                                                                    -----         -----
Weighted-average assumptions as of December 31:
     Discount rate...............................................................    6.75%         7.25%
     Expected return on plan assets..............................................    9.50%         9.00%
     Rate of compensation increase...............................................    4.75%         4.75%
</TABLE>
 
     As of December 31, 1998, Equistar had defined benefit pension plans where
the accumulated benefit obligation exceeded the fair value of plan assets. The
accumulated benefit obligation exceeded the fair value of plan assets by $19
million for these plans as of December 31, 1998. As of December 31, 1998 and
1997, Equistar had defined benefit pension plans where the fair value of plan
assets exceeded the accumulated benefit obligation. The fair value of plan
assets exceeded the accumulated benefit obligation by $19 million for these
plans as of December 31, 1998 and 1997.
 
     The Partnership's net periodic pension cost for 1998 included the following
components:
 
<TABLE>
<CAPTION>
                                                                          1998
                                                                  ---------------------
                                                                  (MILLIONS OF DOLLARS)
<S>                                                               <C>
Components of net periodic benefit cost:
Service cost...................................................           $  16
Interest cost..................................................               5
Expected return on plan assets.................................              (6)
                                                                         ------
Net periodic benefit cost......................................           $  15
                                                                         ------
                                                                         ------
</TABLE>
 
     As the non-union plans became effective on January 1, 1998, the Partnership
did not recognize any net periodic pension cost during the period from December
1, 1997 (inception) to December 31, 1997.
 
                                      F-21
 <PAGE>
<PAGE>
     Effective January 1, 1998, the Partnership also maintains voluntary defined
contribution savings plans for eligible employees. Under provisions of the
plans, the Partnership contributes an amount equal to 160 percent of employee
contributions up to a maximum matching contribution of eight percent of the
employee's base salary. Contributions to the plans by the Partnership were $7
million and less than $1 million for the year ended December 31, 1998 and during
the period from December 1, 1997 (inception) to December 31, 1997, respectively.
 
16. POSTRETIREMENT BENEFITS OTHER THAN PENSIONS
 
     The Partnership sponsors unfunded postretirement benefit plans other than
pensions ('OPEB') for both salaried and non-salaried employees, which provide
medical and life insurance benefits. The postretirement health care plans are
contributory while the life insurance plans are non-contributory. Currently, the
Partnership pays approximately 80 percent of the cost of the health care plans,
but reserves the right to modify the cost-sharing provisions at any time. In
connection with the formation of the Partnership on December 1, 1997, Lyondell
and Millennium contributed $31 million of accrued postretirement benefit
liabilities for employees that transferred to the Partnership. Upon joining the
Partnership in May 1998, Occidental contributed $14 million of accrued
postretirement benefit liabilities for employees that transferred to the
Partnership. The following table provides a reconciliation of benefit
obligations and funded status of the OPEB plans at December 31, 1998 and 1997:
 
<TABLE>
<CAPTION>
                                                                                    1998          1997
                                                                                    -----         -----
                                                                                       (MILLIONS OF
                                                                                         DOLLARS)
 
<S>                                                                                 <C>           <C>
Change in benefit obligation:
     Benefit obligation, January 1...............................................   $  50         $--
     Benefit obligation contributed at inception of Partnership..................    --              50
     Benefit obligation contributed by Occidental................................      14          --
     Service cost................................................................       3          --
     Interest cost...............................................................       4          --
     Actuarial loss (gain).......................................................      (2)         --
                                                                                    -----         -----
     Benefit obligation, December 31.............................................   $  69         $  50
                                                                                    -----         -----
                                                                                    -----         -----
Funded status....................................................................   $ (69)        $ (50)
     Unrecognized actuarial loss (gain)..........................................      16            19
                                                                                    -----         -----
Net amount recognized............................................................   $ (53)        $ (31)
                                                                                    -----         -----
                                                                                    -----         -----
Amounts recognized in the Balance Sheets consist of:
     Prepaid benefit cost........................................................   $--           $  --
     Accrued benefit liability...................................................     (53)          (31)
                                                                                    -----         -----
     Net amount recognized.......................................................   $ (53)        $ (31)
                                                                                    -----         -----
                                                                                    -----         -----
Weighted-average assumptions as of December 31:
     Discount rate...............................................................    6.75%         7.25%
     Rate of compensation increase...............................................    4.75%         4.75%
</TABLE>
 
     Because the OPEB plans are unfunded, there was no change in the plan assets
during the year ended December 31, 1998 and for the period from December 1, 1997
(inception) to December 31, 1997.
 
     The Partnership's postretirement benefit costs for 1998 included the
following components:
 
<TABLE>
<CAPTION>
                                                                                                        1998
                                                                                                ---------------------
                                                                                                (MILLIONS OF DOLLARS)
<S>                                                                                             <C>
Components of net periodic benefit cost:
       Service cost..........................................................................           $   3
       Interest cost.........................................................................               4
       Expected return of plan assets........................................................        --
                                                                                                       ------
Net periodic benefit cost....................................................................           $   7
                                                                                                       ------
                                                                                                       ------
</TABLE>
 
                                      F-22
 <PAGE>
<PAGE>
     The accrued postretirement benefit liabilities at December 31, 1997 were
calculated and contributed as of December 31, 1997; therefore, there was no net
periodic postretirement benefit costs for the period from December 1, 1997
(inception) to December 31, 1997.
 
     For measurement purposes, the assumed annual rate of increase in the per
capita cost of covered health care benefits as of December 31, 1998 was 7.0
percent for 1999-2001 and 5.0 percent thereafter. The health care cost trend
rate assumption does not have a significant effect on the amounts reported. To
illustrate, increasing the assumed health care cost trend rates by one
percentage point in each year would increase the accumulated postretirement
benefit liability as of December 31, 1998 by less than $1 million and would not
have a material effect on the aggregate service and interest cost components of
the net periodic postretirement benefit cost for the year then ended. Decreasing
the assumed health care cost trend rates by one percentage point in each year
would decrease the accumulated postretirement benefit liability as of December
31, 1998 by $1 million and would not have a material effect on the aggregate
service and interest cost components of the net periodic postretirement benefit
cost for the year then ended.
 
17. COMMITMENTS AND CONTINGENCIES
 
     The Partnership has various purchase commitments for materials, supplies
and services incident to the ordinary conduct of business. In the aggregate,
such commitments are not at prices in excess of current market.
 
     The Partnership is also subject to various lawsuits and proceedings.
Subject to the uncertainty inherent in all litigation, management believes the
resolution of these proceedings will not have a material adverse effect upon the
financial statements or liquidity of the Partnership.
 
     Equistar has agreed to indemnify and defend Lyondell and Millennium,
individually, against certain uninsured claims and liabilities which Equistar
may incur relating to the operation of the Contributed Business prior to
December 1, 1997 up to $7 million each within the first seven years of the
Partnership, subject to certain terms of the Asset Contribution Agreements.
Equistar has also agreed to indemnify Occidental up to $7 million on a similar
basis relating to the operation of the Occidental Contributed Business prior to
May 15, 1998. During the year ended December 31, 1998, the Partnership incurred
$5 million in expenses for these uninsured claims and liabilities. No expenses
were incurred for these uninsured claims and liabilities during the period
December 1, 1997 (inception) to December 31, 1997.
 
     The Partnership's policy is to be in compliance with all applicable
environmental laws. The Partnership is subject to extensive environmental laws
and regulations concerning emissions to the air, discharges to surface and
subsurface waters and the generation, handling, storage, transportation,
treatment and disposal of waste materials. Some of these laws and regulations
are subject to varying and conflicting interpretations. In addition, the
Partnership cannot accurately predict future developments, such as increasingly
strict requirements of environmental laws, inspection and enforcement policies
and compliance costs therefrom which might affect the handling, manufacture,
use, emission or disposal of products, other materials or hazardous and
non-hazardous waste.
 
     In the opinion of management, any liability arising from the matters
discussed in this Note is not expected to have a material adverse effect on the
financial statements or liquidity of the Partnership. However, the adverse
resolution in any reporting period of one or more of these matters discussed in
this Note could have a material impact on the Partnership's results of
operations for that period without giving effect to contribution or
indemnification obligations of co-defendants or others, or to the effect of any
insurance coverage that may be available to offset the effects of any such
award.
 
18. SEGMENT INFORMATION
 
     Using the guidelines set forth in SFAS No. 131, Disclosures about Segments
of an Enterprise and Related Information, the Partnership has identified two
segments in which it operates. The reportable segments are petrochemicals and
polymers. The petrochemicals segment includes olefins, oxygenated chemicals,
aromatics and specialty chemicals. Olefins include ethylene, propylene and
butadiene, and the oxygenated chemicals include ethylene oxide, ethylene glycol,
ethanol and MTBE. The petrochemicals segment also includes the production and
sale of aromatics including benzene and toluene. The polymers segment consists
of polyolefins including high-density polyethylene, low-density
 
                                      F-23
 <PAGE>
<PAGE>
polyethylene, linear low-density polyethylene, polypropylene, and performance
polymers. The performance polymers include enhanced grades of polyethylene,
including wire and cable resins, concentrates and compounds, and polymeric
powders.
 
     No customer accounted for 10 percent or more of sales.
 
     The accounting policies of the segments are the same as those described in
'Summary of Significant Accounting Policies' (see Note 2).
 
     Summarized financial information concerning the Partnership's reportable
segments is shown in the following table. Intersegment sales between the
petrochemicals and polymers segments were made at prices based on current market
values.
 
FOR THE YEAR ENDED DECEMBER 31, 1998
 
<TABLE>
<CAPTION>
                                 PETROCHEMICALS    POLYMERS
                                    SEGMENT         SEGMENT     UNALLOCATED    ELIMINATIONS    CONSOLIDATED
                                 --------------    ---------    -----------    ------------    ------------
                                                           (MILLIONS OF DOLLARS)
<S>                              <C>               <C>          <C>            <C>             <C>
Sales and other operating
  revenues:
     Customers................       $2,351         $ 2,012       $--            $ --             $4,363
     Intersegment.............        1,112              46        --              (1,158)        --
                                    -------        ---------    -----------    ------------    ------------
                                     $3,463         $ 2,058       $--            $ (1,158)        $4,363
                                    -------        ---------    -----------    ------------    ------------
                                    -------        ---------    -----------    ------------    ------------
Unusual charges...............       $--            $ --          $    35        $ --             $   35
                                    -------        ---------    -----------    ------------    ------------
                                    -------        ---------    -----------    ------------    ------------
Operating income..............       $  319         $   177       $  (214)       $ --             $  282
                                    -------        ---------    -----------    ------------    ------------
                                    -------        ---------    -----------    ------------    ------------
Depreciation and amortization
  expense.....................       $  152         $    65       $    51        $ --             $  268
                                    -------        ---------    -----------    ------------    ------------
                                    -------        ---------    -----------    ------------    ------------
Capital expenditures..........       $   71         $   116       $    13        $ --             $  200
                                    -------        ---------    -----------    ------------    ------------
                                    -------        ---------    -----------    ------------    ------------
Total assets..................       $2,997         $ 2,035       $ 1,636        $ --             $6,668
                                    -------        ---------    -----------    ------------    ------------
                                    -------        ---------    -----------    ------------    ------------
</TABLE>
 
FOR THE PERIOD FROM DECEMBER 1, 1997 (INCEPTION) TO DECEMBER 31, 1997
 
<TABLE>
<CAPTION>
                                 PETROCHEMICALS    POLYMERS
                                    SEGMENT         SEGMENT     UNALLOCATED    ELIMINATIONS    CONSOLIDATED
                                 --------------    ---------    -----------    ------------    ------------
                                                           (MILLIONS OF DOLLARS)
<S>                              <C>               <C>          <C>            <C>             <C>
Sales and other operating
  revenues:
     Customers................       $  179         $   186       $--             $--             $  365
     Intersegment.............          105           --           --               (105)         --
                                    -------        ---------    -----------    ------------    ------------
                                     $  284         $   186       $--             $ (105)         $  365
                                    -------        ---------    -----------    ------------    ------------
                                    -------        ---------    -----------    ------------    ------------
Unusual charges...............       $--            $ --          $    42         $--             $   42
                                    -------        ---------    -----------    ------------    ------------
                                    -------        ---------    -----------    ------------    ------------
Operating income..............       $   47         $    22       $   (54)        $--             $   15
                                    -------        ---------    -----------    ------------    ------------
                                    -------        ---------    -----------    ------------    ------------
Depreciation and amortization
  expense.....................       $    7         $     7       $     5         $--             $   19
                                    -------        ---------    -----------    ------------    ------------
                                    -------        ---------    -----------    ------------    ------------
Capital expenditures..........       $    7         $     4       $     1         $--             $   12
                                    -------        ---------    -----------    ------------    ------------
                                    -------        ---------    -----------    ------------    ------------
Total assets..................       $1,668         $ 1,504       $ 1,428         $--             $4,600
                                    -------        ---------    -----------    ------------    ------------
                                    -------        ---------    -----------    ------------    ------------
</TABLE>
 
19. SUBSEQUENT EVENTS
 
     In January 1999, the Partnership announced that it was going to shut down
and 'mothball' its gas phase HDPE reactor at Port Arthur, Texas, on March 31,
1999, as part of its long-term strategy to maximize value. The shutdown will
reduce the Partnership's HDPE capacity by 300 million pounds per year and reduce
employment at the unit from 200 to approximately 125. Customers for products
from the mothballed unit will be supplied with comparable products produced at
the Partnership's Matagorda, Victoria, and La Porte, Texas, facilities.
 
                                      F-24


<PAGE>
<PAGE>
                                                                     SCHEDULE II
 
                           MILLENNIUM CHEMICALS INC.
                       VALUATION AND QUALIFYING ACCOUNTS
 
<TABLE>
<CAPTION>
                                                           CHARGED        CHARGED
                                           BALANCE AT        TO          TO OTHER                           BALANCE AT
                                            BEGINNING     COSTS AND      ACCOUNTS-        DEDUCTION           END OF
                                            OF PERIOD     EXPENSES       DESCRIBE         DESCRIBE          OF PERIOD
                                           -----------    ---------    -------------      ---------         ----------
                                                                          (IN MILLIONS)
<S>                                        <C>            <C>          <C>                <C>               <C>
DESCRIPTION
Year ended December 31, 1996
     Deducted from asset accounts:
     Allowance for doubtful accounts....     $    16       $     1        $    --          $     9(a)(b)      $    8
          Valuation Allowance...........          --            --            112(c)            --               112
Year ended December 31, 1997
     Deducted from asset accounts:
     Allowance for doubtful accounts....           8                            2(d)             4(a)              2
     Valuation Allowance................         112                                           (31)(c)           143
Year ended December 31, 1998
     Deducted from asset accounts:
     Allowance for doubtful accounts....           2             1                                                 3
          Valuation Allowance...........         143            (7)                                              136
</TABLE>
 
- ------------
 
 (a) Uncollected accounts written off, net of recoveries.
 
 (b) Sale of Suburban Propane.
 
 (c) Valuation on tax carryforwards arising from demerger transactions.
 
 (d) Reclassed to other current assets as net receivable from Equistar.
 
                                      S-1





                          STATEMENT OF DIFFERENCES
                          ------------------------

The section symbol shall be expressed as................................. 'SS'
The registered trademark symbol shall be expressed as.................... 'r'
Characters normally expressed as subscript shall be expressed as
   baseline characters.



<PAGE>




<PAGE>

Exhibit 10.17
Form of Agreement, dated as of July 24, 1998, between Millennium
Petrochemicals Inc. and each of Peter P. Hanik and Charles F.Daly

                         Millennium Petrochemicals Inc.
                              11500 Northlake Drive
                             Cincinnati, Ohio 45249
                                 (513) 530-6500

                                                                  July 24,  1998

Dear :

1. Introduction. Millennium Petrochemicals Inc. (the "Company") believes that
the maintenance of a sound and vital management of the Company and of Millennium
Chemicals Inc., which is the ultimate parent corporation of the Company
("Millennium"), is essential to the protection and enhancement of the interests
of the Company and Millennium and their stockholders. The Company also
recognizes that the possibility of a Change in Control of the Company or a
Change in Control of Millennium (each as defined in Part II of Exhibit A), with
the attendant uncertainties and risks, might result in the departure or
distraction of key employees of the Company to the detriment of the Company,
Millennium and their shareholders. In light of the possibility of a Change in
Control of the Company or Millennium, the Company has determined that it is
appropriate to induce key employees to remain with the Company, and to reinforce
and encourage their continued attention and dedication. Accordingly, upon your
written acceptance of the terms and conditions of this agreement (the
"Agreement") evidenced by signing below, the Company intends to provide you the
protections set forth herein as of the date first set forth above (the
"Effective Date"). Capitalized terms not defined in the body of this Agreement
shall have the meanings set forth in Exhibit A hereto,



                                      -1-


<PAGE>

<PAGE>


which is incorporated herein and made a part of this Agreement. This Agreement
shall replace the prior agreement regarding a change in control of Millennium
and the Company dated October 23, 1997, by and between you and the Company, and
said prior agreement is hereby rendered null and void and shall no longer have
any force and effect.

2. Termination Following a Change in Control. If a Change in Control occurs on
or after the Effective Date and your employment is terminated during the Post
Change in Control Period (i) by the Company without Cause or due to your
Disability, (ii) by you for Good Reason or, subject to Section 3 below, without
Good Reason, (iii) due to your death or (iv) due to your Retirement, then you
shall be entitled to the amounts and benefits provided in Section 4 herein.
Furthermore, if a Change in Control occurs on or after the Effective Date and
your employment was terminated within the Pre Change in Control Period (i) by
the Company without Cause or due to your Disability, (ii) by you for Good Reason
(based on an event that occurred within the Pre Change in Control Period), or
(iii) due to your death, you shall be entitled to the amounts and benefits
provided in Section 4 herein. [The following sentence is in Mr. Daly's agreement
but not in Mr. Hanik's: Finally, if your employment is terminated at any time
after the Effective Date and prior to December 1, 1999 (i) by the Company
without Cause or due to your Disability, (ii) by you for Good Reason or (iii)
due to your death, you shall be entitled to the amounts and benefits provided in
Section 4 herein upon such termination, even if a Change in Control has not
occurred prior to such termination.] [The following sentence is in Mr. Hanik's
agreement but not in Mr. Daly's: Finally, if your employment is terminated at
any time after the



                                      -2-


<PAGE>

<PAGE>


Effective Date and prior to December 1, 1999 (i) by the Company without Cause
other than for Disability, or (ii) by you for Good Reason, then, even if a
Change in Control has not occurred prior to such termination, you shall be
entitled to the amounts and benefits provided in Section 4 hereof upon such
termination, except that, for purposes of determining the amounts and benefits
provided to you under this sentence, Section 4 shall be amended by substituting
the words "two (2) times" for the words "three (3) times" at the beginning of
Section 4(A)(i) and Section 4(A)(ii) and by substituting the words "two (2)
years" for the words "three (3) years" in each place such words appear in
Section 4(C), (D) and (E).]

3. Direct Pay Letter of Credit. Notwithstanding anything else herein, your right
to voluntarily terminate employment without Good Reason after the date of a
Change in Control and receive the amounts due under Section 4 hereof shall be
delayed until one hundred and eighty (180) days after the Change in Control if,
simultaneous with the Change in Control, the Company or the person or entity
triggering the Change in Control delivers to you an irrevocable direct pay
letter of credit (the "Direct Pay Letter of Credit") satisfying the requirements
of this Section 3 and an indemnity agreement covering in a similar manner the
provisions of Section 6 with regard to activities after the Change in Control.
The Direct Pay Letter of Credit shall be in an amount equal to the aggregate
amount you would be entitled to receive under Sections 4(A)(i) and (ii) hereof
if you were terminated without Cause immediately upon the Change in Control and
shall have an expiration date of no less than two (2) years after the date of
such Change in Control. You (or, if applicable, your legal representative) shall
be entitled to draw on the Direct Pay Letter of Credit upon presentation to the
issuing bank of a demand for



                                      -3-


<PAGE>

<PAGE>


payment signed by you (or, if applicable, your legal representative) that states
that (i) a Good Reason event has occurred and your employment has terminated
during the Post Change in Control Period, or (ii) one-hundred and eighty (180)
days have expired since the Change in Control and your employment has terminated
during the Post Change in Control Period. There shall be no other requirements
(including no requirement that you first make demand upon the Company) with
regard to payment of the Direct Pay Letter of Credit. To the extent the Direct
Pay Letter of Credit is not adequate to cover the amount owed to you under this
Agreement, is not submitted by you or is not paid by the issuing bank, the
Company shall remain liable to you for any amounts owed to you pursuant to the
terms of this Agreement. To the extent any amount is paid under the Direct Pay
Letter of Credit it shall be a credit against any amount the Company then or
thereafter would owe to you under Section 4 of this Agreement. The Direct Pay
Letter of Credit shall be issued by a national money center bank with a rating
of at least A by Standard and Poor's. The Company shall bear the cost of the
Direct Pay Letter of Credit.

4. Compensation on Change in Control Termination. If pursuant to Section 2 you
are entitled to amounts and benefits under this Section 4, the Company shall,
subject to Section 8, pay and provide to you: (A) in a lump sum within five (5)
days after such termination (or, if such termination occurred during the Pre
Change in Control Period, within five (5) days after the Change in Control) the
sum of (i) three (3) times your highest annual base salary in effect within
one-hundred and eighty (180) days prior to the Change in Control, computed by
including the amount of base salary deferred by you (voluntarily or otherwise
pursuant to the Millennium Chemicals Inc. Salary and



                                      -4-


<PAGE>

<PAGE>


Bonus Deferral Plan (the "Deferral Plan") or any other agreement or plan that is
or may have been in effect at the time of such deferral) as part of the base
salary for the year in which it was accrued, (ii) three (3) times the highest
annual bonus paid or payable to you for any of the last three (3) completed
fiscal years by the Company or its predecessors or any affiliate of the Company
or its predecessors (which shall in no event include amounts contributed or
allocated by the Company (or its predecessors or affiliates thereof) on your
behalf or paid to you under any supplemental executive bonus plans applicable to
you (including, without limitation, the 1993 or 1996 HI Long Term Incentive
Plans, any other plan commonly referred to by the Company as a "top-hat" plan or
any equity plan such as the Millennium Chemicals Inc. Long Term Stock Incentive
Plan)), computed by including the amount of any annual bonus deferred by you
(voluntarily or otherwise pursuant to the Deferral Plan or any other agreement
or plan that is or may have been in effect at the time of such deferral) as part
of the annual bonus for the year in which it was accrued, (iii) any unreimbursed
business expenses for the period prior to termination payable in accordance with
the Company's policies, and (iv) any base salary, bonus, vacation pay or other
deferred compensation accrued or earned under law or in accordance with the
Company's policies applicable to you but not yet paid; (B) any other amounts or
benefits due under the then applicable employee benefit, equity or incentive
plans of the Company applicable to you as shall be determined and paid in
accordance with such plans; (C) three (3) years of additional age, service and
compensation credit (using, for such purposes, the base salary and (to the
extent applicable) annual bonus calculated under Sections 4(A)(i) and (ii),
respectively, as your deemed compensation in such years) for pension purposes
under 



                                      -5-


<PAGE>

<PAGE>


any defined benefit type qualified or nonqualified pension plan or
arrangement of the Company and its affiliates applicable to you, measured from
the date of termination of employment and not credited to the extent that you
are otherwise entitled to such credit during such three (3) year period, which
payments shall be made through and in accordance with the terms of the
nonqualified defined benefit pension plan or arrangement if any then exists, or,
if not, in an actuarially equivalent lump sum (using the actuarial factors then
applying in the Company's or its affiliates' defined benefit plan covering you
and your actual age on the date of termination of employment); (D) an amount
equal to the maximum amount which would be credited to your account balance(s)
under any type of qualified 401(k) plan or nonqualified excess 401(k) plan,
assuming you deferred the maximum amount and you continued employment for three
(3) years after the date of termination of employment at the base salary and, to
the extent applicable, the annual bonus calculated under Sections 4(A)(i) and
(ii), respectively, to the extent not otherwise contributed to such plans,
payable in a lump sum at the same time payment is made under Section 4(A)
hereof; and (E) payment by the Company of the premiums for you (except in the
case of your death) and your dependents' health coverage for three (3) years
from the date of termination of your employment under the Company's health plans
which cover the senior executives of the Company or materially similar benefits
(to the extent not otherwise provided), provided that in the case of termination
within one hundred eighty (180) days prior to a Change in Control, the
obligations under this subpart (E) shall only exist to the extent that you or
your dependents, as the case may be, had timely elected or timely elect COBRA
coverage which continued at the time of the Change in Control and the obligation
with 



                                      -6-


<PAGE>

<PAGE>


regard to the period prior to the Change in Control shall be limited to
reimbursement of the COBRA premiums previously paid or due for such period. For
the avoidance of doubt, in calculating the amount of annual bonus "paid or
payable" to you in a particular year under the Millennium Chemicals Inc. Annual
Performance Incentive Plan or any similar plan that contains a "bonus bank"
feature, the annual bonus credited to your "bonus bank" account under such plan
for such year shall be deemed to be the bonus "paid or payable" to you under
such plan for such year. Any amendment or termination of benefits, equity or
incentive plans within one-hundred and eighty (180) days prior to, or after, a
Change in Control that is detrimental to you shall be ignored with respect to
(C), (D) and (E) above. Payments under (E) above may, at the discretion of the
Company, be made by continuing your participation in the plan as a terminee, by
paying the applicable COBRA premium for you and your dependents, or by covering
you and your dependents under substitute arrangements, provided that, to the
extent you incur tax that you would not have incurred as an active employee as a
result of the aforementioned coverage or the benefits provided thereunder, you
shall receive from the Company an additional payment in the amount necessary so
that you will have no additional cost for receiving such items or any additional
payment. Section 6 hereof shall also continue to apply in all instances.

5. Special Tax Provision. (a) Anything in this Agreement to the contrary
notwithstanding, in the event that any amount or benefit paid, payable, or to be
paid, or distributed, distributable, or to be distributed to or with respect to
you (whether pursuant to the terms of this Agreement or any other plan,
arrangement or agreement with the Company, any person whose actions result in a
change of ownership covered by 



                                      -7-


<PAGE>

<PAGE>


Section 28OG(b)(2) of the Internal Revenue Code of 1986, as amended (the "Code")
or any person affiliated with the Company or such person) as a result of a
change in ownership of Millennium covered by Code Section 28OG(b)(2), but not
including the payment provided for in this Section 5 (collectively, the "Covered
Payments"), is or becomes subject to the excise tax imposed by or under Section
4999 of the Code (or any similar tax that may hereafter be imposed), and/or any
interest or penalties with respect to such excise tax (such excise tax, together
with such interest and penalties thereon, is hereinafter collectively referred
to as the "Excise Tax"), the Company shall pay to you an additional amount (the
"Tax Reimbursement Payment") such that after payment by you of all taxes
(including, without limitation, any payroll tax, any income tax, any interest or
penalties and any Excise Tax imposed on or attributable to the Tax Reimbursement
Payment itself), you retain an amount of the Tax Reimbursement Payment equal to
the sum of (i) the amount of the Excise Tax imposed upon the Covered Payments,
and (ii) without duplication, an amount equal to the product of (A) any
deductions disallowed for federal, state or local income tax purposes because of
the inclusion of the Tax Reimbursement Payment in your adjusted gross income,
and (B) the highest applicable marginal rates of federal, state or local income
tax for the calendar year in which the Tax Reimbursement Payment is made or is
to be made. The intent of this Section 5 is that after paying your federal,
state and local income tax and any payroll taxes with respect to the Tax
Reimbursement Payment, you will be in the same position as if you were not
subject to the Excise Tax under Section 4999 of the Code and did not receive the
extra payments pursuant to this Section 5 and this Section 5 shall be
interpreted accordingly.



                                      -8-


<PAGE>

<PAGE>


     (b) Except as otherwise provided in Section 5(a), for purposes of
determining whether any of the Covered Payments will be subject to the Excise
Tax and the amount of such Excise Tax, (i) such Covered Payments will be treated
as "parachute payments" (within the meaning of Section 28OG(b)(2) of the Code)
and such payments in excess of the Code Section 28OG(b)(3) "base amount" shall
be treated as subject to the Excise Tax, unless, and except to the extent that,
the Company's independent certified public accountants appointed prior to the
change in ownership covered by Code Section 28OG(b)(2) or legal counsel
(reasonably acceptable to you) appointed by such public accountants (or, if the
public accountants decline such appointment and decline appointing such legal
counsel, such independent certified public accountants as promptly mutually
agreed on in good faith by the Company and you) (the "Accountant"), deliver a
written opinion to you, reasonably satisfactory to your legal counsel, that you
have a reasonable basis to claim that the Covered Payments (in whole or in part)
(A) do not constitute "parachute payments", (B) represent reasonable
compensation for services actually rendered (within the meaning of Section
28OG(b)(4) of the Code) in excess of the "base amount" allocable to such
reasonable compensation, or (C) such "parachute payments" are otherwise not
subject to such Excise Tax (with appropriate legal authority, detailed analysis
and explanation provided therein by the Accountant); and (ii) the value of any
Covered Payments which are non-cash benefits or deferred payments or benefits
shall be determined by the Accountant in accordance with the principles of
Section 28OG of the Code.

     (c) For purposes of determining the amount of the Tax Reimbursement
Payment, you shall be deemed: (i) to pay federal, state and/or local income
taxes at the 



                                      -9-


<PAGE>

<PAGE>


highest applicable marginal rate of income taxation for the calendar year in
which the Tax Reimbursement Payment is made or is to be made, and (ii) to have
otherwise allowable deductions for federal, state and local income tax purposes
at least equal to those which would be disallowed due to the inclusion of the
Tax Reimbursement Payment in your adjusted gross income.

     (d)(i) (A) In the event that prior to the time you have filed any of your
tax returns for the calendar year in which the change in ownership event covered
by Code Section 28OG(b)(2) occurred, the Accountant determines, for any reason
whatsoever, the correct amount of the Tax Reimbursement Payment to be less than
the amount determined at the time the Tax Reimbursement Payment was made, you
shall repay to the Company, at the time that the amount of such reduction in Tax
Reimbursement Payment is determined by the Accountant, the portion of the prior
Tax Reimbursement Payment attributable to such reduction (including the portion
of the Tax Reimbursement Payment attributable to the Excise Tax and federal,
state and local income and payroll tax imposed on the portion of the Tax
Reimbursement Payment being repaid by you, using the assumptions and methodology
utilized to calculate the Tax Reimbursement Payment (unless manifestly
erroneous)), plus interest on the amount of such repayment at the rate provided
in Section 1274(b)(2)(B) of the Code.

     (B) In the event that a determination described in (A) above is made by the
Accountant after the filing by you of any of your tax returns for the calendar
year in which the change in ownership event covered by Code Section 28OG(b)(2)
occurred but prior to one (1) year after the occurrence of such change in
ownership, you shall file at the request of the Company amended tax returns in
accordance with the 



                                      -10-


<PAGE>

<PAGE>


Accountant's determination, but no portion of the Tax Reimbursement Payment
otherwise payable to the Company shall be required to be refunded to the Company
until actual refund or credit of such portion has been made to you, and interest
payable to the Company shall not exceed the interest received or credited to you
by such tax authority for the period it held such portion (less any tax you must
pay on such interest and which you are unable to deduct as a result of payment
of the refund).

     (C) In the event you receive a refund pursuant to (B) above and repay such
amount to the Company, you shall thereafter file for any refunds or credits that
may be due to you by reason of the repayments to the Company. You and the
Company shall mutually reasonably agree upon the course of action, if any, to be
pursued (which shall be at the expense of the Company) if your claim for such
refund or credit is denied.

     (ii) In the event that the Excise Tax is later determined by the Accountant
or the Internal Revenue Service to exceed the amount taken into account
hereunder at the time the Tax Reimbursement Payment is made (including by reason
of any payment the existence or amount of which cannot be determined at the time
of the Tax Reimbursement Payment), the Company shall make an additional Tax
Reimbursement Payment in respect of such excess (plus any interest or penalties
payable with respect to such excess) once the amount of such excess is finally
determined.

    (iii) In the event of any controversy between you and the Internal Revenue
Service (or other taxing authority) that relates to the payment provided for
under this Section 5, subject to the second sentence of subpart (i)(C) above,
you shall permit the Company to control issues related to this Section 5 (at its
expense), provided that such 



                                      -11-


<PAGE>

<PAGE>


issues do not potentially materially adversely affect you, but you shall control
any other issues that you may have with the Internal Revenue Service (or other
taxing authority). In the event the issues are interrelated, you and the Company
shall in good faith cooperate so as not to jeopardize resolution of either
issue, but if the parties cannot agree you shall make the final determination
with regard to the issues that you may have with the Internal Revenue Service
(or other taxing authority). In the event of any conference with any taxing
authority as to the Excise Tax or associated income taxes, you shall permit the
representative of the Company to accompany you, and you and your representative
shall cooperate with the Company and its representative.

      (iv) With regard to any initial filing for a refund or any other action
required pursuant to this Section 5 (other than by mutual agreement) or, if not
required, agreed to by the Company and you, you shall cooperate fully with the
Company, and the Company shall bear the expense for the preparation of any such
filing or amended tax return, provided that the foregoing shall not apply to
actions that are provided herein to be at your sole discretion.

    (e) The Tax Reimbursement Payment, or any portion thereof, payable by the
Company shall be paid not later than the fifth (5th) day following the
determination by the Accountant, and any payment made after such fifth (5th) day
shall bear interest at the rate provided in Code Section 1274(b)(2)(B). The
Company shall use its best efforts to cause the Accountant to promptly deliver
the initial determination required hereunder and, if not delivered, within
ninety (90) days after the change in ownership event covered by Section
28OG(b)(2) of the Code, the Company shall pay you the Tax Reimbursement Payment
set forth in an opinion from counsel recognized as 



                                      -12-


<PAGE>

<PAGE>


knowledgeable in the relevant areas selected by you, and reasonably acceptable
to the Company, within five (5) days after delivery of such opinion. In
accordance with Section 15, the Company may withhold from the Tax Reimbursement
Payment and deposit with the applicable taxing authorities such amounts as they
are required to withhold by applicable law. To the extent that you are required
to pay estimated or other taxes on amounts received by you beyond any withheld
amounts, you shall promptly make such payments. The amount of such payment shall
be subject to later adjustment in accordance with the determination of the
Accountant as provided herein.

    (f) The Company shall be responsible for all charges of the Accountant and,
if Section 5(e) is applicable, the reasonable charges for the opinion given by
your counsel.

     (g) You and the Company shall mutually agree on and promulgate further
guidelines in accordance with this Section 5 to the extent, if any, necessary to
effect the reversal of excessive or shortfall Tax Reimbursement Payments. The
foregoing shall not in any way be inconsistent with Section 5(d)(i)(C) hereof.

6. Indemnification. (a) The Company and Millennium, jointly and severally, agree
that if you are made a party to or threatened to be made a party to any action,
suit or proceeding, whether civil, criminal, administrative or investigative (a
"Proceeding"), by reason of the fact that you are or were a director or officer
of the Company or Millennium or their predecessors, and/or any other affiliate
of any of such companies, or are or were serving at the request of any of such
companies or affiliates as a director, officer, member, employee, fiduciary or
agent of another corporation or of a partnership, 



                                      -13-


<PAGE>

<PAGE>


joint venture, trust or other enterprise, including, without limitation, service
with respect to employee benefit plans, whether or not the basis of such
Proceeding is alleged action in an official capacity as a director, officer,
member, employee, fiduciary or agent while serving as a director, officer,
member, employee, fiduciary or agent, you shall be indemnified and held harmless
by the Company and Millennium to the fullest extent authorized by Virginia law
(or, if different, the law applicable to such company), as the same exists or
may hereafter be amended, against all Expenses incurred or suffered by you in
connection therewith, and such indemnification shall continue as to you even if
you have ceased to be an officer, director, member, fiduciary or agent, or are
no longer employed by the Company, and shall inure to the benefit of your heirs,
executors and administrators.

     (b) As used in this Agreement, the term "Expenses" shall include, without
limitation, damages, losses, judgments, liabilities, fines, penalties, excise
taxes, settlements and reasonable costs, reasonable attorneys' fees, reasonable
accountants' fees, and reasonable disbursements and costs of attachment or
similar bonds, investigations, and any reasonable expenses of establishing a
right to indemnification under this Agreement.

     (c) Expenses incurred by you in connection with any Proceeding shall be
paid by the Company and Millennium in advance upon your request and the giving
by you of any undertakings required by applicable law.

     (d) You shall give the Company and Millennium prompt notice of any claim
made against you for which indemnity will or could be sought under this
Agreement. In 



                                      -14-


<PAGE>

<PAGE>


addition, you shall give the Company and Millennium such information and
cooperation as it may reasonably require and as shall be within your power and
at such times and places as are reasonably convenient for you.

     (e) With respect to any Proceeding as to which you notify the Company and
Millennium of the commencement thereof: (i) the Company will be entitled to
participate therein at its own expense; and (ii) except as otherwise provided
below, to the extent that it may wish, the Company jointly with any other
indemnifying party similarly notified will be entitled to assume the defense
thereof. You also shall have the right to employ your own counsel in such
Proceeding and the fees and expenses of such counsel shall be at the expense of
the Company.

     (f) The Company and Millennium shall not be liable to indemnify you under
this Agreement for any amounts paid in settlement of any Proceeding effected
without its written consent. Neither the Company nor Millennium shall settle any
Proceeding in any manner which would impose any penalty or limitation on you
without your written consent. Neither the Company, Millennium nor you will
unreasonably withhold or delay their consent to any proposed settlement.

     (g) The right to indemnification and the payment of expenses incurred in
defending a Proceeding in advance of its final disposition conferred in this
Section 6 shall not be exclusive of any other right which you may have or
hereafter may acquire under any statute, provision of the certificate of
incorporation or by-laws of the company, agreement, vote of stockholders or
disinterested directors or otherwise.



                                      -15-


<PAGE>

<PAGE>


7. Legal Fees. In the event that a claim for payment or benefits under this
Agreement or any other plan or agreement of the Company or its affiliates is
disputed as a result of events which occurred on or after a Change in Control,
or during the Pre Change in Control Period, the Company shall pay all reasonable
attorney, accountant and other professional fees and reasonable expenses
incurred by you in pursuing such claim, unless the claim by you is found to be
frivolous by any court or arbitrator.

8. No Duty to Mitigate/Set-off. The Company agrees that if your employment with
the Company is terminated during the term of this Agreement, you shall not be
required to seek other employment or to attempt in any way to reduce any amounts
payable to you by the Company pursuant to this Agreement. Further, the amount of
any payment or benefit provided for in this Agreement shall not be reduced by
any compensation earned by you or benefit provided to you as the result of
employment by another employer or otherwise. Except as otherwise provided herein
and apart from any disagreement between you and the Company concerning
interpretation of this Agreement or any term or provision hereof, the Company's
obligations to make the payments provided for in this Agreement and otherwise to
perform its obligations hereunder shall not be affected by any circumstances,
including without limitation, any set-off, counterclaim, recoupment, defense or
other right which the Company may have against you. The amounts due under
Section 4 are inclusive, and in lieu of, any amounts payable under any other
salary continuation or cash severance arrangement of the Company and to the
extent paid or provided under any other such arrangement shall be offset against
the amount due hereunder.





                                      -16-


<PAGE>

<PAGE>


9. Term. This Agreement shall be for a term (the "Term") commencing on the
Effective Date and terminating on the Termination Date as defined herein,
provided that if a Change in Control has taken place prior to the Termination
Date, this Agreement shall continue in full force and effect during the Change
in Control Protection Period and further provided that the payment and other
obligations hereunder shall survive such termination to the extent a Change in
Control has occurred during the Term, and in any event, the obligations under
Section 6 hereof shall survive the end of the Term with regard to matters
occurring during the Term (even if a claim is made after the Term). The
Termination Date shall initially be September 30, 2002 and shall automatically
be extended for successive one (1) year periods as of September 30, 2002 and as
of each anniversary of the Termination Date, unless notice is given in writing
to you by the Company at least 180 days prior to September 30, 2002, or any such
anniversary of the Termination Date, of its intention to not extend the
Termination Date.

10. Successors; Binding Agreement. In addition to any obligations imposed by law
upon any successor to the Company, the Company will require any successor
(whether direct or indirect, by purchase, merger, consolidation or otherwise) to
all or substantially all of the business and/or assets of the Company to
expressly assume and agree in writing to perform this Agreement in the same
manner and to the same extent that the Company would be required to perform it
if no such succession had taken place and this Agreement shall inure to the
benefit of such successor. Any such assignment shall not relieve the Company
from liability hereunder, for periods prior to such assignment, but shall
relieve the Company from liability for periods after such assignment. Reference
to the Company herein shall also include any successor to the 




                                      -17-


<PAGE>

<PAGE>


Company. This Agreement shall inure to the benefit of and be enforceable by your
personal or legal representatives, executors, administrators, successors, heirs,
distributees, devises and legatees. If you die while any amount would still by
payable to you hereunder if you had continued to live, all such amounts, unless
otherwise provided herein, shall be paid in accordance with the terms of the
Agreement to the executors, personal representatives, estate trustees, or
administrators of your estate. This Agreement is personal to you and neither
this Agreement nor any rights hereunder may be assigned by you.

11. Communications. Any notice or other communication required or permitted
hereunder shall be in writing and shall be delivered personally, or sent by
registered mail, postage prepaid as follows:

                    (i)  If to the Company or Millennium, to
                         such entity at:

                         c/o Millennium American Holdings Inc.
                         230 Half Mile Road
                         P.O. Box 7015
                         Red Bank, New Jersey 07701

                         Attention:George H. Hempstead, III
                                   Senior Vice President-Law and
                                   Administration

                   (ii)  If to you, to the last shown
                         address on the books of the
                         Company or
                         Millennium.

     Any such notice shall be deemed given when so delivered personally, or, if
mailed, five (5) days after the date of deposit (in the form of registered or
certified mail, return receipt requested, postage prepaid) in the United States
postal system. Any



                                      -18-


<PAGE>

<PAGE>


party may by notice designate another address or person for receipt of notices
hereunder.

12. Not an Agreement of Employment. This is not an agreement assuring employment
and the Company reserves the right to terminate your employment at any time with
or without Cause, subject to the payment provisions hereof if such termination
is during the Change in Control Protection Period. You acknowledge that you are
aware that you shall have no claim against the Company hereunder or for
deprivation of the right to receive the amounts hereunder as a result of any
termination that does not specifically satisfy the requirements hereof. The
foregoing shall not affect your rights under any other agreement with the
Company.

13. Miscellaneous. No provisions of this Agreement may be modified, waived or
discharged unless such waiver, modification or discharge is agreed to in writing
and signed by you and such officer as may be specifically designated by the
Company Board (as defined in Part III of Exhibit A). No waiver by either party
hereto at any time of any breach by the other party hereto of, or compliance
with, any condition or provision shall be deemed a waiver of similar or
dissimilar provisions or conditions at the same or at any prior or subsequent
time. This Agreement constitutes the entire Agreement between the parties hereto
pertaining to the subject matter hereof and supersedes any prior agreements
between the Company and you. For the avoidance of doubt, the Company and you
concur that the formation of Equistar Chemicals, LP ("Equistar") and the
contribution of assets by Millennium Petrochemicals Inc. to Equistar on December
1, 1997, does not constitute a Change in Control under this Agreement or any
other agreement or plan affecting you (including your Restricted Stock Agreement




                                      -19-


<PAGE>

<PAGE>


with Millennium); in addition, the sale or disposition of all or any part of
Millennium's interests in Equistar shall not be deemed to constitute a Change in
Control under this Agreement or any other agreement or plan affecting you. No
agreements or representations, oral or otherwise, express or implied, with
respect to the subject matter hereof have been made by either party which are
not expressly set forth in this Agreement. All references to any law shall be
deemed also to refer to any successor provisions to such laws.

14. Independent Representation. You acknowledge that you have been advised by
the Company to have the Agreement reviewed by independent counsel and you have
been given the opportunity to do so.

15. Withholding Taxes. The Company may withhold from any and all amounts payable
under this Agreement such federal, state and local taxes as may be required to
be withheld pursuant to any applicable law or regulation.

16. Governing Law. This Agreement shall be construed, interpreted, and governed
in accordance with the laws of the State of Virginia without reference to rules
relating to conflicts of law.

                              Very truly yours,
                              MILLENNIUM PETROCHEMICALS INC.

                              By:_____________________________
                                 Name:
                                 Title:  Vice President

Agreed and Accepted 



                                      -20-


<PAGE>

<PAGE>

as of the first date written above:

MILLENNIUM CHEMICALS INC.
(for purposes of Section 6 only)

By__________________________________        __________________________________
  Name:
  Title:  Chairman and Chief
          Executive Officer



                                      -21-


<PAGE>

<PAGE>






                                    EXHIBIT A

Part I - Cause

1. Subject to compliance with the notification provisions in this Exhibit A,
this Agreement shall not prevent the termination of your employment by the
Company for Cause. A termination for Cause means a termination by the Company
effected by a written notice of termination for Cause. For purposes of this
Agreement, the term "Cause" shall be limited to your: (i) willful misconduct
with regard to the Company or its affiliates or their businesses which has a
material adverse effect on the Company and its affiliates taken as a whole; (ii)
refusal to follow the proper written direction of the Company Board provided
that the foregoing refusal shall not be "Cause" if in good faith you believe
that such direction is illegal, unethical or immoral and you promptly so notify
the applicable Company Board; (iii) conviction of a felony (other than a felony
involving a motor vehicle) and either (x) exhausting all appeals without a
reversal of the conviction or (y) commencing a term of incarceration in a house
of detention; (iv) breach of any fiduciary duty owed to the Company or its
affiliates which has a material adverse effect on the Company and its affiliates
taken as a whole; or (v) your material fraud with regard to the Company or any
of its affiliates.

2. A notice of termination for Cause shall mean a notice that shall set forth in
reasonable detail the specific basis, facts and circumstances which provide for
a basis for termination for Cause and shall include a copy of a resolution duly
adopted by at least two-thirds of the directors of the applicable Company at a
meeting which was called for the purpose of considering such termination and
which you and your representative had the right to attend and address, finding
that, in the good faith opinion of the applicable board, you engaged in conduct
set forth in the definition of Cause herein and specifying the particulars
thereof in reasonable detail. The date of termination for a termination for
Cause shall be the date indicated in the notice of termination.

3. Notwithstanding anything to the contrary contained in this Agreement, if any
purported termination for Cause within the Change in Control Protection Period
that occurs on or after the Effective Date is held by a court not to have been
based on the grounds set forth in this Agreement, or not to have followed the
procedures set forth in this Agreement, such purported termination for Cause
shall be deemed a termination by the Company without Cause and you shall be
entitled to the amounts and benefits provided in Section 4 to the extent, if
any, applicable.



                                      -22-


<PAGE>

<PAGE>



Part II - Change in Control

1. For purposes of this Agreement, a "Change in Control" shall mean either a
Change in Control of Millennium or a Change in Control of the Company. Only one
(1) Change in Control may occur under this Agreement.

2. Change in Control of Millennium. For purposes of this Agreement, the term
"Change in Control of Millennium" shall mean (i) any "person" as such term is
used in Sections 13(d) and 14(d) of the Securities Exchange Act of 1934 ("Act")
(other than Millennium, any trustee or other fiduciary holding securities under
any employee benefit plan of Millennium or any company owned, directly or
indirectly, by the stockholders of Millennium in substantially the same
proportions as their ownership of Common Stock of Millennium), becoming the
"beneficial owner" (as defined in Rule 13d-3 under the Act), directly or
indirectly, of securities of Millennium representing twenty-five percent (25%)
or more of the combined voting power of Millennium's then outstanding
securities; (ii) during any period of two (2) consecutive years (not including
any period prior to October 1, 1996), individuals who at the beginning of such
period constitute the Board of Directors of Millennium, and any new director
(other than a director designated by a person who has entered into an agreement
with Millennium to effect a transaction described in clause (i), (iii), or (iv)
of this paragraph or a director whose initial assumption of office occurs as a
result of either an actual or threatened election contest (as such terms are
used in Rule 14a-11 of Regulation 14A promulgated under the Act) or other actual
or threatened solicitation of proxies or consents by or on behalf of a person
other than the Board of Directors of Millennium) whose election by the Board of
Directors of Millennium or nomination for election by Millennium's stockholders
was approved by a vote of at least two-thirds of the directors then still in
office who either were directors at the beginning of the two (2) year period or
whose election or nomination for election was previously so approved, cease for
any reason to constitute at least a majority of the Board of Directors of
Millennium; (iii) the merger or consolidation of Millennium with any other
corporation, other than a merger or consolidation which would result in the
voting securities of Millennium outstanding immediately prior thereto continuing
to represent (either by remaining outstanding or by being converted into voting
securities of the surviving entity) more than fifty percent (50%) of the
combined voting power of the voting securities of Millennium or such surviving
entity outstanding immediately after such merger or consolidation; provided,
however, that a merger or consolidation effected to implement a recapitalization
of Millennium (or similar transaction) in which no person (other than those
covered by the exceptions in (i) above) acquires more than twenty-five percent
(25%) of the combined voting power of Millennium's then outstanding securities
shall not constitute a Change in Control of Millennium; or (iv) approval by the
stockholders of Millennium of a plan of complete liquidation of Millennium or
the closing of the sale or disposition by Millennium of all or substantially all
of Millennium's assets other than the sale of all or substantially all of the
assets of Millennium to one or more Subsidiaries (as defined below) of
Millennium or to a person or persons who beneficially own, directly or
indirectly, at least fifty percent (50%) or more of the combined voting power of
the outstanding voting securities of Millennium at the time of the sale.



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<PAGE>

<PAGE>


3. For purposes of this Agreement, unless the Board of Directors of Millennium
shall determine prior to the occurrence of an event set forth in Section (i) or
(ii) of this paragraph 3 that such event is not a Change in Control of the
Company, the term "Change in Control of the Company" shall mean (i) any "person"
as such term is used in Sections 13(d) and 14(d) of the Act (other than
Millennium or a Subsidiary (as defined below) of Millennium) becoming the
"beneficial owner" (as defined in Rule 13d-3 under the Act), directly or
indirectly, of securities of the Company representing more than fifty percent
(50%) of the combined voting power of the Company's then outstanding securities
entitled to vote in a general election for directors; or (ii) all or
substantially all of the Company's assets are sold other than to Millennium or a
Subsidiary of Millennium. "Subsidiary" shall have the meaning set forth in
Section 424 of the Code and the term shall also include any partnership, limited
liability company or other business entity if Millennium owns, directly or
indirectly, securities or other ownership interests representing at least fifty
percent (50%) of the ordinary voting power or equity or capital interests of
such entity.

4. Change in Control Protection Period. For purposes of this Agreement, the term
"Change in Control Protection Period" shall mean the Pre Change in Control
Period and the Post Change in Control Period as defined below.

5. Pre Change in Control Period. For purposes of this Agreement, Pre Change in
Control Period shall mean the one hundred and eighty (180) day period prior to
the date of a Change in Control that occurs on or after the Effective Date.

6. Post Change in Control Period. For purposes of this Agreement, Post Change in
Control Period shall mean the period commencing on the date of a Change in
Control that occurs on or after the Effective Date and ending the day
immediately prior to the second anniversary of the Change in Control.

Part III - Company Board

    For purposes of this Agreement, the term "Company Board" shall be deemed to
refer to the Board of Directors of the Company and Millennium.

Part IV - Disability

     For purposes of this Agreement, the term "Disability" shall mean your
inability to perform your material duties and responsibilities hereunder due to
the same or related physical or mental reasons for more than one hundred eighty
(180) consecutive days in any twelve (12) consecutive month period. A
termination for Disability shall be deemed to occur when you are terminated by
the Company by written notice after you incur a Disability and while you remain
disabled.



                                      -24-


<PAGE>

<PAGE>


Part V - Good Reason

1. For purposes of this Agreement, a termination for "Good Reason" shall mean a
termination by you effected by a written notice of termination for Good Reason
given within ninety (90) days after the occurrence of the Good Reason event.
Subject to subsection 3 below, "Good Reason" shall mean the occurrence or
failure to cause the occurrence, as the case may be, without your express
written consent, of (i) any material diminution of your positions, duties or
responsibilities with the Company from the highest position held within the Pre
Change in Control Period (except in each case in connection with the termination
of your employment for Cause, Disability or as a result of your death, or in the
case of a material diminution of duties or responsibilities, temporarily as a
result of your illness or other absence) or the assignment to you of duties or
responsibilities that are inconsistent with your aforementioned highest
position; (ii) your removal from, or the nonreelection to, your positions as an
officer with the Company or Millennium held during the Pre Change in Control
Period; (iii) a relocation of the Company's principal United States executive
offices to a location more than twenty-five (25) miles from where they are at
the time of the Change in Control, or a relocation by the Company of your
principal office away from such principal United States executive offices; (iv)
a failure by the Company or Millennium (A) to continue any bonus plan, program
or arrangement in which you were entitled to participate during the Pre Change
in Control Period (the "Bonus Plans"), provided that any such Bonus Plans may be
modified at the Company's discretion from time to time but shall be deemed
terminated if (x) any such plan does not remain substantially in the form in
effect prior to such modification or (y) if plans providing you with
substantially similar benefits are not substituted therefor ("Substitute
Plans"), or (B) to continue you as a participant in the Bonus Plans or
Substitute Plans on not less than the same maximum level of award and not more
than the same level of difficulty for achievability thereof as was applicable to
you immediately prior to any change in such plans, in accordance with the Bonus
Plans and the Substitute Plans; (v) any material breach by the Company or
Millennium of any provision of this Agreement; (vi) if on the Company Board
during the Pre Change in Control Period, your removal from or failure to be
reelected to the Company Board; (vii) a reduction by the Company of your rate of
annual base salary to a level below your highest rate of base salary within
one-hundred and eighty (180) days prior to the Change in Control; or (viii)
failure of any successor of the Company to assume in a writing delivered to you
upon the assignee becoming such, the obligations of the Company hereunder.

2. A notice of termination for Good Reason shall indicate the specific basis for
termination relied upon and set forth in reasonable detail the facts and
circumstances claimed to provide a basis for a termination for Good Reason. The
failure by you to set forth in the notice of termination for Good Reason any
facts or circumstances which contribute to the showing of Good Reason shall not
waive any of your rights hereunder or preclude you from asserting such fact or
circumstance in enforcing your rights hereunder. The notice of termination for
Good Reason shall provide for a date of termination neither less than ten (10)
nor more than sixty (60) days after the date such notice of termination for Good
Reason is given.



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<PAGE>

<PAGE>


3. In the event that a Direct Pay Letter of Credit is delivered in accordance
with Section 3 of this Agreement at the time of a Change in Control, the
definition of Good Reason shall not include the events set forth in subsections
1 (i), (ii) and (vi) above so long as during such period you are maintained in a
senior advisory capacity (without any line or other staff responsibilities) to
assist in the orderly transition to new management.

Part VI - Retirement

For purposes of this Agreement, the term "Retirement" shall mean your retirement
by the Company at or after your sixty-fifth (65th) birthday to the extent such
termination is specifically permitted as a stated exception from applicable
federal and state age discrimination laws based on position and retirement
benefits.



                                      -26-


<PAGE>



<PAGE>


EXHIBIT 10.19
FORM OF CHANGE-IN-CONTROL AGREEMENT BETWEEN EACH OF THE COMPANY'S OPERATING
SUBSIDIARIES AND CERTAIN OFFICERS OF SUCH SUBSIDIARIES WHO ARE NOT EXECUTIVE
OFFICERS OF THE COMPANY


            [Name and Address of Relevant Subsidiary Employer]

                                                                     [Date]

Name
Address

Dear ________:

1. INTRODUCTION. [Name of Employee's Subsidiary Employer] (the "Company")
believes that the maintenance of a sound and vital management of the Company and
of Millennium Chemicals Inc., which is the ultimate parent corporation of the
Company ("Millennium"), is essential to the protection and enhancement of the
interests of the Company and Millennium and their stockholders. The Company also
recognizes that the possibility of a Change in Control of the Company or a
Change in Control of Millennium (each as defined in Part II of Exhibit A), with
the attendant uncertainties and risks, might result in the departure or
distraction of key employees of the Company to the detriment of the Company,
Millennium and their shareholders. In light of the possibility of a Change in
Control of the Company or Millennium, the Company has determined that it is
appropriate to induce key employees to remain with the Company, and to reinforce
and encourage their continued attention and dedication. Accordingly, upon your
written acceptance of the terms and conditions of this agreement (the
"Agreement") evidenced by signing below, the Company intends to provide you the
protections set forth herein as of the date first set forth above (the
"Effective Date"). Capitalized terms not defined in the body of this Agreement
shall have the meanings set forth in Exhibit A hereto, which is incorporated
herein and made a part of this Agreement. This Agreement shall replace the prior
agreement regarding a change in control of Millennium and the Company dated July
24, 1998 by and between you and the Company, and said prior agreement is hereby
rendered null and void and shall no longer have any force and effect.

2. TERMINATION FOLLOWING A CHANGE IN CONTROL. If a Change in Control occurs on
or after the Effective Date and your employment is terminated during the Post
Change in Control Period (i) by the Company without Cause or due to your
Disability, (ii) by you for Good Reason or, subject to Section 3 below, without
Good Reason, (iii) due to your



                                      -1-



<PAGE>
<PAGE>


death or (iv) due to your Retirement, then you shall be entitled to the amounts
and benefits provided in Section 4 herein. Furthermore, if a Change in Control
occurs on or after the Effective Date and your employment was terminated within
the Pre Change in Control Period (i) by the Company without Cause or due to your
Disability, (ii) by you for Good Reason (based on an event that occurred within
the Pre Change in Control Period), or (iii) due to your death, you shall be
entitled to the amounts and benefits provided in Section 4 herein.

3. DIRECT PAY LETTER OF CREDIT. Notwithstanding anything else herein, your right
to voluntarily terminate employment without Good Reason after the date of a
Change in Control and receive the amounts due under Section 4 hereof shall be
delayed until one hundred and eighty (180) days after the Change in Control if,
simultaneous with the Change in Control, the Company or the person or entity
triggering the Change in Control delivers to you an irrevocable direct pay
letter of credit (the "Direct Pay Letter of Credit") satisfying the requirements
of this Section 3 and an indemnity agreement covering in a similar manner the
provisions of Section 6 with regard to activities after the Change in Control.
The Direct Pay Letter of Credit shall be in an amount equal to the aggregate
amount you would be entitled to receive under Sections 4(A)(i) and (ii) hereof
if you were terminated without Cause immediately upon the Change in Control and
shall have an expiration date of no less than two (2) years after the date of
such Change in Control. You (or, if applicable, your legal representative) shall
be entitled to draw on the Direct Pay Letter of Credit upon presentation to the
issuing bank of a demand for payment signed by you (or, if applicable, your
legal representative) that states that (i) a Good Reason event has occurred and
your employment has terminated during the Post Change in Control Period, or (ii)
one-hundred and eighty (180) days have expired since the Change in Control and
your employment has terminated during the Post Change in Control Period. There
shall be no other requirements (including no requirement that you first make
demand upon the Company) with regard to payment of the Direct Pay Letter of
Credit. To the extent the Direct Pay Letter of Credit is not adequate to cover
the amount owed to you under this Agreement, is not submitted by you or is not
paid by the issuing bank, the Company shall remain liable to you for any amounts
owed to you pursuant to the terms of this Agreement. To the extent any amount is
paid under the Direct Pay Letter of Credit it shall be a credit against any
amount the Company then or thereafter would owe to you under Section 4 of this
Agreement. The Direct Pay Letter of Credit shall be issued by a national money
center bank with a rating of at least A by Standard and Poor's. The Company
shall bear the cost of the Direct Pay Letter of Credit.

4. COMPENSATION ON CHANGE IN CONTROL TERMINATION. If pursuant to Section 2 you
are entitled to amounts and benefits under this Section 4, the Company shall,
subject to Section 8, pay and provide to you: (A) in a lump sum within five (5)
days after such termination (or, if such termination occurred during the Pre
Change in Control Period, within five (5) days after the Change in Control) the
sum of (i) three (3) times your highest annual base salary in effect within
one-hundred and eighty (180) days prior to the Change in Control, computed by
including the amount of base salary deferred by you (voluntarily or otherwise
pursuant to the Millennium Chemicals Inc. Salary and Bonus Deferral Plan (the
"Deferral Plan") or any other agreement or plan that is or may 



                                      -2-



<PAGE>
<PAGE>


have been in effect at the time of such deferral) as part of the base salary for
the year in which it was accrued, (ii) three (3) times the highest annual bonus
paid or payable to you for any of the last three (3) completed fiscal years by
the Company or its predecessors or any affiliate of the Company or its
predecessors (which shall in no event include amounts contributed or allocated
by the Company (or its predecessors or affiliates thereof) on your behalf or
paid to you under any supplemental executive bonus plans applicable to you
(including, without limitation, the 1993 or 1996 HI Long Term Incentive Plans,
any other plan commonly referred to by the Company as a "top-hat" plan or any
equity plan such as the Millennium Chemicals Inc. Long Term Stock Incentive
Plan)), computed by including the amount of any annual bonus deferred by you
(voluntarily or otherwise pursuant to the Deferral Plan or any other agreement
or plan that is or may have been in effect at the time of such deferral) as part
of the annual bonus for the year in which it was accrued, (iii) any unreimbursed
business expenses for the period prior to termination payable in accordance with
the Company's policies, and (iv) any base salary, bonus, vacation pay or other
deferred compensation accrued or earned under law or in accordance with the
Company's policies applicable to you but not yet paid; (B) any other amounts or
benefits due under the then applicable employee benefit, equity or incentive
plans of the Company applicable to you as shall be determined and paid in
accordance with such plans; (C) three (3) years of additional age, service and
compensation credit (using, for such purposes, the base salary and (to the
extent applicable) annual bonus calculated under Sections 4(A)(i) and (ii),
respectively, as your deemed compensation in such years) for pension purposes
under any defined benefit type qualified or nonqualified pension plan or
arrangement of the Company and its affiliates applicable to you, measured from
the date of termination of employment and not credited to the extent that you
are otherwise entitled to such credit during such three (3) year period, which
payments shall be made through and in accordance with the terms of the
nonqualified defined benefit pension plan or arrangement if any then exists, or,
if not, in an actuarially equivalent lump sum (using the actuarial factors then
applying in the Company's or its affiliates' defined benefit plan covering you
and your actual age on the date of termination of employment); (D) an amount
equal to the maximum amount which would be contributed by the Company to your
account balance(s) (as Company matching contributions) under any type of
qualified 401(k) plan or nonqualified excess 401(k) plan, assuming you deferred
the maximum amount and you continued employment for three (3) years after the
date of termination of employment at the base salary and, to the extent
applicable, the annual bonus calculated under Sections 4(A)(i) and (ii),
respectively, to the extent not otherwise contributed to such plans, payable in
a lump sum at the same time payment is made under Section 4(A) hereof; and (E)
payment by the Company of the premiums for you (except in the case of your
death) and your dependents' health coverage for three (3) years from the date of
termination of your employment under the Company's health plans which cover the
senior executives of the Company or materially similar benefits (to the extent
not otherwise provided), provided that in the case of termination within one
hundred eighty (180) days prior to a Change in Control, the obligations under
this subpart (E) shall only exist to the extent that you or your dependents, as
the case may be, had timely elected or timely elect COBRA coverage which
continued at the time of the Change in Control and the obligation with regard to
the period prior to the Change in 



                                      -3-



<PAGE>
<PAGE>


Control shall be limited to reimbursement of the COBRA premiums previously paid
or due for such period. For the avoidance of doubt, in calculating the amount of
annual bonus "paid or payable" to you in a particular year under the Millennium
Chemicals Inc. Annual Performance Incentive Plan or any similar plan that
contains a "bonus bank" feature, the annual bonus credited to your "bonus bank"
account under such plan for such year shall be deemed to be the bonus "paid or
payable" to you under such plan for such year. Any amendment or termination of
benefits, equity or incentive plans within one-hundred and eighty (180) days
prior to, or after, a Change in Control that is detrimental to you shall be
ignored with respect to (C), (D) and (E) above. Payments under (E) above may, at
the discretion of the Company, be made by continuing your participation in the
plan as a terminee, by paying the applicable COBRA premium for you and your
dependents, or by covering you and your dependents under substitute
arrangements, provided that, to the extent you incur tax that you would not have
incurred as an active employee as a result of the aforementioned coverage or the
benefits provided thereunder, you shall receive from the Company an additional
payment in the amount necessary so that you will have no additional cost for
receiving such items or any additional payment. Section 6 hereof shall also
continue to apply in all instances.

5. SPECIAL TAX PROVISION. (a) Anything in this Agreement to the contrary
notwithstanding, in the event that any amount or benefit paid, payable, or to be
paid, or distributed, distributable, or to be distributed to or with respect to
you (whether pursuant to the terms of this Agreement or any other plan,
arrangement or agreement with the Company, any person whose actions result in a
change of ownership covered by Section 28OG(b)(2) of the Internal Revenue Code
of 1986, as amended (the "Code") or any person affiliated with the Company or
such person) as a result of a change in ownership of Millennium covered by Code
Section 28OG(b)(2), but not including the payment provided for in this Section 5
(collectively, the "Covered Payments"), is or becomes subject to the excise tax
imposed by or under Section 4999 of the Code (or any similar tax that may
hereafter be imposed), and/or any interest or penalties with respect to such
excise tax (such excise tax, together with such interest and penalties thereon,
is hereinafter collectively referred to as the "Excise Tax"), the Company shall
pay to you an additional amount (the "Tax Reimbursement Payment") such that
after payment by you of all taxes (including, without limitation, any payroll
tax, any income tax, any interest or penalties and any Excise Tax imposed on or
attributable to the Tax Reimbursement Payment itself), you retain an amount of
the Tax Reimbursement Payment equal to the sum of (i) the amount of the Excise
Tax imposed upon the Covered Payments, and (ii) without duplication, an amount
equal to the product of (A) any deductions disallowed for federal, state or
local income tax purposes because of the inclusion of the Tax Reimbursement
Payment in your adjusted gross income, and (B) the highest applicable marginal
rates of federal, state or local income tax for the calendar year in which the
Tax Reimbursement Payment is made or is to be made. The intent of this Section 5
is that after paying your federal, state and local income tax and any payroll
taxes with respect to the Tax Reimbursement Payment, you will be in the same
position as if you were not subject to the Excise Tax under Section 4999 of the
Code and did not receive the extra payments pursuant to this Section 5 and this
Section 5 shall be interpreted accordingly.



                                      -4-



<PAGE>
<PAGE>


         (b) Except as otherwise provided in Section 5(a), for purposes of
determining whether any of the Covered Payments will be subject to the Excise
Tax and the amount of such Excise Tax, (i) such Covered Payments will be treated
as "parachute payments" (within the meaning of Section 28OG(b)(2) of the Code)
and such payments in excess of the Code Section 28OG(b)(3) "base amount" shall
be treated as subject to the Excise Tax, unless, and except to the extent that,
the Company's independent certified public accountants appointed prior to the
change in ownership covered by Code Section 28OG(b)(2) or legal counsel
(reasonably acceptable to you) appointed by such public accountants (or, if the
public accountants decline such appointment and decline appointing such legal
counsel, such independent certified public accountants as promptly mutually
agreed on in good faith by the Company and you) (the "Accountant"), deliver a
written opinion to you, reasonably satisfactory to your legal counsel, that you
have a reasonable basis to claim that the Covered Payments (in whole or in part)
(A) do not constitute "parachute payments", (B) represent reasonable
compensation for services actually rendered (within the meaning of Section
28OG(b)(4) of the Code) in excess of the "base amount" allocable to such
reasonable compensation, or (C) such "parachute payments" are otherwise not
subject to such Excise Tax (with appropriate legal authority, detailed analysis
and explanation provided therein by the Accountant); and (ii) the value of any
Covered Payments which are non-cash benefits or deferred payments or benefits
shall be determined by the Accountant in accordance with the principles of
Section 28OG of the Code.

         (c) For purposes of determining the amount of the Tax Reimbursement
Payment, you shall be deemed: (i) to pay federal, state and/or local income
taxes at the highest applicable marginal rate of income taxation for the
calendar year in which the Tax Reimbursement Payment is made or is to be made,
and (ii) to have otherwise allowable deductions for federal, state and local
income tax purposes at least equal to those which would be disallowed due to the
inclusion of the Tax Reimbursement Payment in your adjusted gross income.

         (d)(i) (A) In the event that prior to the time you have filed any of
your tax returns for the calendar year in which the change in ownership event
covered by Code Section 28OG(b)(2) occurred, the Accountant determines, for any
reason whatsoever, the correct amount of the Tax Reimbursement Payment to be
less than the amount determined at the time the Tax Reimbursement Payment was
made, you shall repay to the Company, at the time that the amount of such
reduction in Tax Reimbursement Payment is determined by the Accountant, the
portion of the prior Tax Reimbursement Payment attributable to such reduction
(including the portion of the Tax Reimbursement Payment attributable to the
Excise Tax and federal, state and local income and payroll tax imposed on the
portion of the Tax Reimbursement Payment being repaid by you, using the
assumptions and methodology utilized to calculate the Tax Reimbursement Payment
(unless manifestly erroneous)), plus interest on the amount of such repayment at
the rate provided in Section 1274(b)(2)(B) of the Code.

         (B) In the event that a determination described in (A) above is made by
the Accountant after the filing by you of any of your tax returns for the
calendar year in which the change in ownership event covered by Code Section
28OG(b)(2) occurred 



                                      -5-



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<PAGE>


but prior to one (1) year after the occurrence of such change in ownership, you
shall file at the request of the Company amended tax returns in accordance with
the Accountant's determination, but no portion of the Tax Reimbursement Payment
otherwise payable to the Company shall be required to be refunded to the Company
until actual refund or credit of such portion has been made to you, and interest
payable to the Company shall not exceed the interest received or credited to you
by such tax authority for the period it held such portion (less any tax you must
pay on such interest and which you are unable to deduct as a result of payment
of the refund).

         (C) In the event you receive a refund pursuant to (B) above and repay
such amount to the Company, you shall thereafter file for any refunds or credits
that may be due to you by reason of the repayments to the Company. You and the
Company shall mutually reasonably agree upon the course of action, if any, to be
pursued (which shall be at the expense of the Company) if your claim for such
refund or credit is denied.

         (ii) In the event that the Excise Tax is later determined by the
Accountant or the Internal Revenue Service to exceed the amount taken into
account hereunder at the time the Tax Reimbursement Payment is made (including
by reason of any payment the existence or amount of which cannot be determined
at the time of the Tax Reimbursement Payment), the Company shall make an
additional Tax Reimbursement Payment in respect of such excess (plus any
interest or penalties payable with respect to such excess) once the amount of
such excess is finally determined.

           (iii) In the event of any controversy between you and the Internal
Revenue Service (or other taxing authority) that relates to the payment provided
for under this Section 5, subject to the second sentence of subpart (i)(C)
above, you shall permit the Company to control issues related to this Section 5
(at its expense), provided that such issues do not potentially materially
adversely affect you, but you shall control any other issues that you may have
with the Internal Revenue Service (or other taxing authority). In the event the
issues are interrelated, you and the Company shall in good faith cooperate so as
not to jeopardize resolution of either issue, but if the parties cannot agree
you shall make the final determination with regard to the issues that you may
have with the Internal Revenue Service (or other taxing authority). In the event
of any conference with any taxing authority as to the Excise Tax or associated
income taxes, you shall permit the representative of the Company to accompany
you, and you and your representative shall cooperate with the Company and its
representative.

           (iv) With regard to any initial filing for a refund or any other
action required pursuant to this Section 5 (other than by mutual agreement) or,
if not required, agreed to by the Company and you, you shall cooperate fully
with the Company, and the Company shall bear the expense for the preparation of
any such filing or amended tax return, provided that the foregoing shall not
apply to actions that are provided herein to be at your sole discretion.

        (e) The Tax Reimbursement Payment, or any portion thereof, payable by
the Company shall be paid not later than the fifth (5th) day following the
determination by the Accountant, and any payment made after such fifth (5th) day
shall bear interest at



                                      -6-



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<PAGE>

the rate provided in Code Section 1274(b)(2)(B). The Company shall use its best
efforts to cause the Accountant to promptly deliver the initial determination
required hereunder and, if not delivered, within ninety (90) days after the
change in ownership event covered by Section 28OG(b)(2) of the Code, the Company
shall pay you the Tax Reimbursement Payment set forth in an opinion from counsel
recognized as knowledgeable in the relevant areas selected by you, and
reasonably acceptable to the Company, within five (5) days after delivery of
such opinion. In accordance with Section 15, the Company may withhold from the
Tax Reimbursement Payment and deposit with the applicable taxing authorities
such amounts as they are required to withhold by applicable law. To the extent
that you are required to pay estimated or other taxes on amounts received by you
beyond any withheld amounts, you shall promptly make such payments. The amount
of such payment shall be subject to later adjustment in accordance with the
determination of the Accountant as provided herein.

        (f) The Company shall be responsible for all charges of the Accountant
and, if Section 5(e) is applicable, the reasonable charges for the opinion given
by your counsel.

         (g) You and the Company shall mutually agree on and promulgate further
guidelines in accordance with this Section 5 to the extent, if any, necessary to
effect the reversal of excessive or shortfall Tax Reimbursement Payments. The
foregoing shall not in any way be inconsistent with Section 5(d)(i)(C) hereof.

6. INDEMNIFICATION. (a) The Company and Millennium, jointly and severally, agree
that if you are made a party to or threatened to be made a party to any action,
suit or proceeding, whether civil, criminal, administrative or investigative (a
"Proceeding"), by reason of the fact that you are or were a director or officer
of the Company or Millennium or their predecessors, and/or any other affiliate
of any of such companies, or are or were serving at the request of any of such
companies or affiliates as a director, officer, member, employee, fiduciary or
agent of another corporation or of a partnership, joint venture, trust or other
enterprise, including, without limitation, service with respect to employee
benefit plans, whether or not the basis of such Proceeding is alleged action in
an official capacity as a director, officer, member, employee, fiduciary or
agent while serving as a director, officer, member, employee, fiduciary or
agent, you shall be indemnified and held harmless by the Company and Millennium
to the fullest extent authorized by Delaware law (or, if different, the law
applicable to such company), as the same exists or may hereafter be amended,
against all Expenses incurred or suffered by you in connection therewith, and
such indemnification shall continue as to you even if you have ceased to be an
officer, director, member, fiduciary or agent, or are no longer employed by the
Company, and shall inure to the benefit of your heirs, executors and
administrators.

         (b) As used in this Agreement, the term "Expenses" shall include,
without limitation, damages, losses, judgments, liabilities, fines, penalties,
excise taxes, settlements and reasonable costs, reasonable attorneys' fees,
reasonable accountants' fees, and reasonable disbursements and costs of
attachment or similar bonds,


                                      -7-



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<PAGE>

investigations, and any reasonable expenses of establishing a right to
indemnification under this Agreement.

         (c) Expenses incurred by you in connection with any Proceeding shall be
paid by the Company and Millennium in advance upon your request and the giving
by you of any undertakings required by applicable law.

         (d) You shall give the Company and Millennium prompt notice of any
claim made against you for which indemnity will or could be sought under this
Agreement. In addition, you shall give the Company and Millennium such
information and cooperation as it may reasonably require and as shall be within
your power and at such times and places as are reasonably convenient for you.

         (e) With respect to any Proceeding as to which you notify the Company
and Millennium of the commencement thereof: (i) the Company will be entitled to
participate therein at its own expense; and (ii) except as otherwise provided
below, to the extent that it may wish, the Company jointly with any other
indemnifying party similarly notified will be entitled to assume the defense
thereof. You also shall have the right to employ your own counsel in such
Proceeding and the fees and expenses of such counsel shall be at the expense of
the Company.

         (f) The Company and Millennium shall not be liable to indemnify you
under this Agreement for any amounts paid in settlement of any Proceeding
effected without its written consent. Neither the Company nor Millennium shall
settle any Proceeding in any manner which would impose any penalty or limitation
on you without your written consent. Neither the Company, Millennium nor you
will unreasonably withhold or delay their consent to any proposed settlement.

         (g) The right to indemnification and the payment of expenses incurred
in defending a Proceeding in advance of its final disposition conferred in this
Section 6 shall not be exclusive of any other right which you may have or
hereafter may acquire under any statute, provision of the certificate of
incorporation or by-laws of the company, agreement, vote of stockholders or
disinterested directors or otherwise.

7. LEGAL FEES. In the event that a claim for payment or benefits under this
Agreement or any other plan or agreement of the Company or its affiliates is
disputed as a result of events which occurred on or after a Change in Control,
or during the Pre Change in Control Period, the Company shall pay all reasonable
attorney, accountant and other professional fees and reasonable expenses
incurred by you in pursuing such claim, unless the claim by you is found to be
frivolous by any court or arbitrator.

8. NO DUTY TO MITIGATE/SET-OFF. The Company agrees that if your employment with
the Company is terminated during the term of this Agreement, you shall not be
required to seek other employment or to attempt in any way to reduce any amounts
payable to you by the Company pursuant to this Agreement. Further, the amount of
any payment or benefit provided for in this Agreement shall not be reduced by
any compensation earned by you or benefit provided to you as the result of
employment by another 



                                      -8-



<PAGE>
<PAGE>


employer or otherwise. Except as otherwise provided herein and apart from any
disagreement between you and the Company concerning interpretation of this
Agreement or any term or provision hereof, the Company's obligations to make the
payments provided for in this Agreement and otherwise to perform its obligations
hereunder shall not be affected by any circumstances, including without
limitation, any set-off, counterclaim, recoupment, defense or other right which
the Company may have against you. The amounts due under Section 4 are inclusive,
and in lieu of, any amounts payable under any other salary continuation or cash
severance arrangement of the Company and to the extent paid or provided under
any other such arrangement shall be offset against the amount due hereunder.

9. TERM. This Agreement shall be for a term (the "Term") commencing on the
Effective Date and terminating on the Termination Date as defined herein,
provided that if a Change in Control has taken place prior to the Termination
Date, this Agreement shall continue in full force and effect during the Change
in Control Protection Period and further provided that the payment and other
obligations hereunder shall survive such termination to the extent a Change in
Control has occurred during the Term, and in any event, the obligations under
Section 6 hereof shall survive the end of the Term with regard to matters
occurring during the Term (even if a claim is made after the Term). The
Termination Date shall initially be September 30, 2002 and shall automatically
be extended for successive one (1) year periods as of September 30, 2002 and as
of each anniversary of the Termination Date, unless notice is given in writing
to you by the Company at least 180 days prior to September 30, 2002, or any such
anniversary of the Termination Date, of its intention to not extend the
Termination Date.

10. SUCCESSORS; BINDING AGREEMENT. In addition to any obligations imposed by law
upon any successor to the Company, the Company will require any successor
(whether direct or indirect, by purchase, merger, consolidation or otherwise) to
all or substantially all of the business and/or assets of the Company to
expressly assume and agree in writing to perform this Agreement in the same
manner and to the same extent that the Company would be required to perform it
if no such succession had taken place and this Agreement shall inure to the
benefit of such successor. Any such assignment shall not relieve the Company
from liability hereunder, for periods prior to such assignment, but shall
relieve the Company from liability for periods after such assignment. Reference
to the Company herein shall also include any successor to the Company. This
Agreement shall inure to the benefit of and be enforceable by your personal or
legal representatives, executors, administrators, successors, heirs,
distributees, devises and legatees. If you die while any amount would still by
payable to you hereunder if you had continued to live, all such amounts, unless
otherwise provided herein, shall be paid in accordance with the terms of the
Agreement to the executors, personal representatives, estate trustees, or
administrators of your estate. This Agreement is personal to you and neither
this Agreement nor any rights hereunder may be assigned by you.

11. COMMUNICATIONS. Any notice or other communication required or permitted
hereunder shall be in writing and shall be delivered personally, or sent by
registered mail, postage prepaid as follows:


                                      -9-



<PAGE>
<PAGE>



                     (i)  If to the Company or Millennium, to such entity at:

                          c/o Millennium American Holdings Inc.
                          230 Half Mile Road
                          P.O. Box 7015
                          Red Bank, New Jersey 07701

                          Attention:  George H. Hempstead, III Senior Vice 
                                      President-Law and Administration

                     (ii) If to you, to the last shown address
                          on the books of the Company or Millennium.

         Any such notice shall be deemed given when so delivered personally, or,
if mailed, five (5) days after the date of deposit (in the form of registered or
certified mail, return receipt requested, postage prepaid) in the United States
postal system. Any party may by notice designate another address or person for
receipt of notices hereunder.

12. NOT AN AGREEMENT OF EMPLOYMENT. This is not an agreement assuring employment
and the Company reserves the right to terminate your employment at any time with
or without Cause, subject to the payment provisions hereof if such termination
is during the Change in Control Protection Period. You acknowledge that you are
aware that you shall have no claim against the Company hereunder or for
deprivation of the right to receive the amounts hereunder as a result of any
termination that does not specifically satisfy the requirements hereof. The
foregoing shall not affect your rights under any other agreement with the
Company.

13. MISCELLANEOUS. No provisions of this Agreement may be modified, waived or
discharged unless such waiver, modification or discharge is agreed to in writing
and signed by you and such officer as may be specifically designated by the
Company Board (as defined in Part III of Exhibit A). No waiver by either party
hereto at any time of any breach by the other party hereto of, or compliance
with, any condition or provision shall be deemed a waiver of similar or
dissimilar provisions or conditions at the same or at any prior or subsequent
time. This Agreement constitutes the entire Agreement between the parties hereto
pertaining to the subject matter hereof and supersedes any prior agreements
between the Company and you. For the avoidance of doubt, the Company and you
concur that the formation of Equistar Chemicals, LP ("Equistar") and the
contribution of assets by Millennium Petrochemicals Inc. to Equistar on December
1, 1997, does not constitute a Change in Control under this Agreement or any
other agreement or plan affecting you (including your Restricted Stock Agreement
with Millennium); in addition, the sale or disposition of all or any part of
Millennium's interests in Equistar shall not be deemed to constitute a Change in
Control under this Agreement or any other agreement or plan affecting you. No
agreements or


                                      -10-



<PAGE>
<PAGE>


representations, oral or otherwise, express or implied, with respect to the
subject matter hereof have been made by either party which are not expressly set
forth in this Agreement. All references to any law shall be deemed also to refer
to any successor provisions to such laws.

14. INDEPENDENT REPRESENTATION. You acknowledge that you have been advised by
the Company to have the Agreement reviewed by independent counsel and you have
been given the opportunity to do so.

15. WITHHOLDING TAXES. The Company may withhold from any and all amounts payable
under this Agreement such federal, state and local taxes as may be required to
be withheld pursuant to any applicable law or regulation.


                                      -11-



<PAGE>
<PAGE>


16. GOVERNING LAW. This Agreement shall be construed, interpreted, and governed
in accordance with the laws of the State of Delaware without reference to rules
relating to conflicts of law.

                                        Very truly yours,
                                        [Name of Employee's Subsidiary Employer]

                                        By:________________________________
                                            Name:
                                            Title:  Vice President

Agreed and Accepted
as of the first date written above:

MILLENNIUM CHEMICALS INC.
(for purposes of Section 6 only)

By___________________________               __________________________
  Name:                                            Name:
  Title: Chairman and Chief
         Executive Officer



                                      -12-



<PAGE>
<PAGE>


                                    EXHIBIT A
Part I - Cause

1. Subject to compliance with the notification provisions in this Exhibit A,
this Agreement shall not prevent the termination of your employment by the
Company for Cause. A termination for Cause means a termination by the Company
effected by a written notice of termination for Cause. For purposes of this
Agreement, the term "Cause" shall be limited to your: (i) willful misconduct
with regard to the Company or its affiliates or their businesses which has a
material adverse effect on the Company and its affiliates taken as a whole; (ii)
refusal to follow the proper written direction of the Company Board provided
that the foregoing refusal shall not be "Cause" if in good faith you believe
that such direction is illegal, unethical or immoral and you promptly so notify
the applicable Company Board; (iii) conviction of a felony (other than a felony
involving a motor vehicle) and either (x) exhausting all appeals without a
reversal of the conviction or (y) commencing a term of incarceration in a house
of detention; (iv) breach of any fiduciary duty owed to the Company or its
affiliates which has a material adverse effect on the Company and its affiliates
taken as a whole; or (v) your material fraud with regard to the Company or any
of its affiliates.

2. A notice of termination for Cause shall mean a notice that shall set forth in
reasonable detail the specific basis, facts and circumstances which provide for
a basis for termination for Cause and shall include a copy of a resolution duly
adopted by at least two-thirds of the directors of the applicable Company at a
meeting which was called for the purpose of considering such termination and
which you and your representative had the right to attend and address, finding
that, in the good faith opinion of the applicable board, you engaged in conduct
set forth in the definition of Cause herein and specifying the particulars
thereof in reasonable detail. The date of termination for a termination for
Cause shall be the date indicated in the notice of termination.

3. Notwithstanding anything to the contrary contained in this Agreement, if any
purported termination for Cause within the Change in Control Protection Period
that occurs on or after the Effective Date is held by a court not to have been
based on the grounds set forth in this Agreement, or not to have followed the
procedures set forth in this Agreement, such purported termination for Cause
shall be deemed a termination by the Company without Cause and you shall be
entitled to the amounts and benefits provided in Section 4 to the extent, if
any, applicable.


                                      -1-



<PAGE>
<PAGE>


Part II - Change in Control

1. For purposes of this Agreement, a "Change in Control" shall mean either a
Change in Control of Millennium or a Change in Control of the Company. Only one
(1) Change in Control may occur under this Agreement.

2. Change in Control of Millennium. For purposes of this Agreement, the term
"Change in Control of Millennium" shall mean (i) any "person" as such term is
used in Sections 13(d) and 14(d) of the Securities Exchange Act of 1934 ("Act")
(other than Millennium, any trustee or other fiduciary holding securities under
any employee benefit plan of Millennium or any company owned, directly or
indirectly, by the stockholders of Millennium in substantially the same
proportions as their ownership of Common Stock of Millennium), becoming the
"beneficial owner" (as defined in Rule 13d-3 under the Act), directly or
indirectly, of securities of Millennium representing twenty-five percent (25%)
or more of the combined voting power of Millennium's then outstanding
securities; (ii) during any period of two (2) consecutive years (not including
any period prior to October 1, 1996), individuals who at the beginning of such
period constitute the Board of Directors of Millennium, and any new director
(other than a director designated by a person who has entered into an agreement
with Millennium to effect a transaction described in clause (i), (iii), or (iv)
of this paragraph or a director whose initial assumption of office occurs as a
result of either an actual or threatened election contest (as such terms are
used in Rule 14a-11 of Regulation 14A promulgated under the Act) or other actual
or threatened solicitation of proxies or consents by or on behalf of a person
other than the Board of Directors of Millennium) whose election by the Board of
Directors of Millennium or nomination for election by Millennium's stockholders
was approved by a vote of at least two-thirds of the directors then still in
office who either were directors at the beginning of the two (2) year period or
whose election or nomination for election was previously so approved, cease for
any reason to constitute at least a majority of the Board of Directors of
Millennium; (iii) the merger or consolidation of Millennium with any other
corporation, other than a merger or consolidation which would result in the
voting securities of Millennium outstanding immediately prior thereto continuing
to represent (either by remaining outstanding or by being converted into voting
securities of the surviving entity) more than fifty percent (50%) of the
combined voting power of the voting securities of Millennium or such surviving
entity outstanding immediately after such merger or consolidation; provided,
however, that a merger or consolidation effected to implement a recapitalization
of Millennium (or similar transaction) in which no person (other than those
covered by the exceptions in (i) above) acquires more than twenty-five percent
(25%) of the combined voting power of Millennium's then outstanding securities
shall not constitute a Change in Control of Millennium; or (iv) approval by the
stockholders of Millennium of a plan of complete liquidation of Millennium or
the closing of the sale or disposition by Millennium of all or substantially all
of Millennium's assets other than the sale or disposition of all or
substantially all of the assets of Millennium to one or more Subsidiaries (as
defined below) of Millennium or to a person or persons who beneficially own,
directly or indirectly, at least fifty percent (50%) or more of the combined
voting power of the outstanding voting securities of Millennium at the time of
the sale.



                                      -2-



<PAGE>
<PAGE>


3. For purposes of this Agreement, unless the Board of Directors of Millennium
shall determine prior to the occurrence of an event set forth in Section (i) or
(ii) of this paragraph 3 that such event is not a Change in Control of the
Company, the term "Change in Control of the Company" shall mean (i) any "person"
as such term is used in Sections 13(d) and 14(d) of the Act (other than
Millennium or a Subsidiary (as defined below) of Millennium) becoming the
"beneficial owner" (as defined in Rule 13d-3 under the Act), directly or
indirectly, of securities of the Company representing more than fifty percent
(50%) of the combined voting power of the Company's then outstanding securities
entitled to vote in a general election for directors; or (ii) all or
substantially all of the Company's assets are sold other than to Millennium or a
Subsidiary of Millennium. "Subsidiary" shall have the meaning set forth in
Section 424 of the Code and the term shall also include any partnership, limited
liability company or other business entity if Millennium owns, directly or
indirectly, securities or other ownership interests representing at least fifty
percent (50%) of the ordinary voting power or equity or capital interests of
such entity.

4. Change in Control Protection Period. For purposes of this Agreement, the term
"Change in Control Protection Period" shall mean the Pre Change in Control
Period and the Post Change in Control Period as defined below.

5. Pre Change in Control Period. For purposes of this Agreement, Pre Change in
Control Period shall mean the one hundred and eighty (180) day period prior to
the date of a Change in Control that occurs on or after the Effective Date.

6. Post Change in Control Period. For purposes of this Agreement, Post Change in
Control Period shall mean the period commencing on the date of a Change in
Control that occurs on or after the Effective Date and ending the day
immediately prior to the second anniversary of the Change in Control.

Part III - Company Board

        For purposes of this Agreement, the term "Company Board" shall be deemed
to refer to the Board of Directors of the Company and Millennium.

Part IV - Disability

         For purposes of this Agreement, the term "Disability" shall mean your
inability to perform your material duties and responsibilities hereunder due to
the same or related physical or mental reasons for more than one hundred eighty
(180) consecutive days in any twelve (12) consecutive month period. A
termination for Disability shall be deemed to occur when you are terminated by
the Company by written notice after you incur a Disability and while you remain
disabled.


                                      -3-



<PAGE>
<PAGE>



Part V - Good Reason

1. For purposes of this Agreement, a termination for "Good Reason" shall mean a
termination by you effected by a written notice of termination for Good Reason
given within ninety (90) days after the occurrence of the Good Reason event.
Subject to subsection 3 below, "Good Reason" shall mean the occurrence or
failure to cause the occurrence, as the case may be, without your express
written consent, of (i) any material diminution of your positions, duties or
responsibilities with the Company from the highest position held within the Pre
Change in Control Period (except in each case in connection with the termination
of your employment for Cause, Disability or as a result of your death, or in the
case of a material diminution of duties or responsibilities, temporarily as a
result of your illness or other absence) or the assignment to you of duties or
responsibilities that are inconsistent with your aforementioned highest
position; (ii) your removal from, or the nonreelection to, your positions as an
officer with the Company or Millennium held during the Pre Change in Control
Period; (iii) a relocation of the Company's principal United States executive
offices to a location more than twenty-five (25) miles from where they are at
the time of the Change in Control, or a relocation by the Company of your
principal office away from such principal United States executive offices; (iv)
a failure by the Company or Millennium (A) to continue any bonus plan, program
or arrangement in which you were entitled to participate during the Pre Change
in Control Period (the "Bonus Plans"), provided that any such Bonus Plans may be
modified at the Company's discretion from time to time but shall be deemed
terminated if (x) any such plan does not remain substantially in the form in
effect prior to such modification or (y) if plans providing you with
substantially similar benefits are not substituted therefor ("Substitute
Plans"), or (B) to continue you as a participant in the Bonus Plans or
Substitute Plans on not less than the same maximum level of award and not more
than the same level of difficulty for achievability thereof as was applicable to
you immediately prior to any change in such plans, in accordance with the Bonus
Plans and the Substitute Plans; (v) any material breach by the Company or
Millennium of any provision of this Agreement; (vi) if on the Company Board
during the Pre Change in Control Period, your removal from or failure to be
reelected to the Company Board; (vii) a reduction by the Company of your rate of
annual base salary to a level below your highest rate of base salary within
one-hundred and eighty (180) days prior to the Change in Control; or (viii)
failure of any successor of the Company to assume in a writing delivered to you
upon the assignee becoming such, the obligations of the Company hereunder.

2. A notice of termination for Good Reason shall indicate the specific basis for
termination relied upon and set forth in reasonable detail the facts and
circumstances claimed to provide a basis for a termination for Good Reason. The
failure by you to set forth in the notice of termination for Good Reason any
facts or circumstances which contribute to the showing of Good Reason shall not
waive any of your rights hereunder or preclude you from asserting such fact or
circumstance in enforcing your rights hereunder. The notice of termination for
Good Reason shall provide for a date of termination neither less than ten (10)
nor more than sixty (60) days after the date such notice of termination for Good
Reason is given.


                                      -4-



<PAGE>
<PAGE>


3. In the event that a Direct Pay Letter of Credit is delivered in accordance
with Section 3 of this Agreement at the time of a Change in Control, the
definition of Good Reason shall not include the events set forth in subsections
1 (i), (ii) and (vi) above so long as during such period you are maintained in a
senior advisory capacity (without any line or other staff responsibilities) to
assist in the order transition to new management.

Part VI - Retirement

For purposes of this Agreement, the term "Retirement" shall mean your retirement
by the Company at or after your sixty-fifth (65th) birthday to the extent such
termination is specifically permitted as a stated exception from applicable
federal and state age discrimination laws based on position and retirement
benefits.


                                    -5-





<PAGE>



<PAGE>

EXHIBIT 10.20(d)
AMENDMENT NUMBER 3 DATED JANUARY 22, 1999 TO THE MILLENNIUM
CHEMICALS INC. 1996 LONG TERM INCENTIVE PLAN

                             AMENDMENT NUMBER THREE
                                     TO THE
                        ANNUAL PERFORMANCE INCENTIVE PLAN

          WHEREAS,  Millennium  Chemicals  Inc.  (the  "Company")
maintains  the  Millennium   Chemicals  Inc.  Annual  Performance
Incentive Plan, effective as of October 1, 1996 (the "Plan");

          WHEREAS, pursuant to Section 10 of the Plan, the Board of Directors of
the Company (the "Board") reserved the right to amend the Plan; and

          WHEREAS, the Board desires to amend the Plan.

          NOW,  THEREFORE,  effective as of January 1, 1999,  the
Plan is amended as follows:

          1. The definition of "Change in Control" in Exhibit A to the Plan is
             amended by deleting Subsection (iv) of such definition in its
             entirety and substituting the following in lieu thereof:

          (iv) the stockholders of the Company approve a plan of complete
liquidation of the Company or the closing of the sale or disposition by the
Company of all or substantially all of the Company's assets other than the sale
or disposition of all or substantially all of the assets of the Company to one
or more Subsidiaries (as defined below) of the Company or to a person or persons
who beneficially own, directly or indirectly, at least fifty percent (50%) or
more of the combined voting power of the outstanding voting securities of the
Company at the time of the sale or disposition. "Subsidiary" shall have the
meaning set forth in Section 424 of the Code and the term shall also include any
partnership, limited liability company or other business entity if the Company
owns, directly or indirectly, securities or other ownership interests
representing at least fifty percent (50%) of the ordinary voting power or equity
or capital interests of such entity. Notwithstanding any of the foregoing, the
formation of Equistar Chemicals, LP ("Equistar") and the contribution of assets
by Millennium Petrochemicals Inc. to Equistar on December 1, 1997 shall not
constitute a Change in Control, and the sale or disposition of all or any part
of the Company's interests in Equistar shall not constitute a Change in Control.

          2. In all other respects, the Plan is hereby ratified and confirmed.

          IN WITNESS WHEREOF, this amendment has been executed this 22nd day of
January, 1999.

                              MILLENNIUM CHEMICALS INC.

                              By:________________________
                              George H. Hempstead, III
                              Senior Vice President



<PAGE>



<PAGE>


EXHIBIT 10.21(d)
AMENDMENT DATED JANUARY 22, 1999 TO THE MILLENNIUM CHEMICALS INC.
1996 LONG TERM INCENTIVE PLAN

                                    AMENDMENT
                                     TO THE
               MILLENNIUM CHEMICALS INC. LONG-TERM INCENTIVE PLAN

          WHEREAS, Millennium Chemicals Inc. (the "Company") maintains the
Millennium Chemicals Inc. Long-Term Incentive Plan (effective as of October 1,
1995) (the "Plan");

          WHEREAS, pursuant to Section 22 of the Plan, the Board of Directors of
the Company (the "Board") reserves the right to amend the Plan;

          WHEREAS, the Board previously approved the "Termination Amendment" to
the Plan effective as of October 23, 1997 and subsequently amended Section 3 of
such Termination Amendment effective as of January 1, 1998, and

          WHEREAS, the Board desires to amend the Plan;

          NOW, THEREFORE, effective as of January 1, 1999, the Plan is amended
as follows:

          1. Section 13(b) of the Plan is amended and restated in its entirely
as follows:

     For purposes of this Section 13 Agreement, the term "Change in Control"
shall mean:
     (1) any "person" as such term is used in Sections 13(d) and 14(d) of the
Securities Exchange Act of 1934 ("Act") (other than the Company, any trustee or
other fiduciary holding securities under any employee benefit plan of the
Company or any company owned, directly or indirectly, by the stockholders of the
Company in substantially the same proportions as their ownership of Common Stock
of the Company), becoming the "beneficial owner" (as defined in Rule 13d-3 under
the Act), directly or indirectly, of securities of the Company representing
twenty-five percent (25%) or more of the combined voting power of the Company's
then outstanding securities;

     (2) during any period of two consecutive years (not including any period
prior to October 1, 1996), individuals who at the beginning of such period
constitute the Board of Directors of the Company, and any new director (other
than a director designated by a person who has entered into an agreement with
the Company to effect a transaction described in clause (1), (3), or (4) of this
paragraph or a director whose initial assumption of office occurs as a result of
either an actual or threatened election contest (as such terms are used in Rule
14a-11 of Regulation 14A promulgated under the Act) or other actual or
threatened solicitation of proxies or consents by or on behalf of a person other
than the Board of Directors of the Company) whose election by the Board of
Directors or nomination for election by the Company's stockholders was approved
by a vote of at least two-thirds of the directors then still in office who
either were directors at the beginning of the two-year period or whose election
or nomination for election was previously so approved, cease for any reason to
constitute at least a majority of the Board of Directors;




<PAGE>
<PAGE>


     (3) the merger or consolidation of the Company with any other corporation,
other than a merger or consolidation which would result in the voting securities
of the Company outstanding immediately prior thereto continuing to represent
(either by remaining outstanding or by being converted into voting securities of
the surviving entity) more than fifty percent (50%) of the combined voting power
of the voting securities of the Company or such surviving entity outstanding
immediately after such merger or consolidation; provided, however, that a merger
or consolidation effected to implement a recapitalization of the Company (or
similar transaction) in which no person (other than those covered by the
exceptions in (1) above) acquires more than twenty-five percent (25%) of the
combined voting power of the Company's then outstanding securities shall not
constitute a Change in Control; or

     (4) the stockholders of the Company approve a plan of complete liquidation
of the Company or the closing of the sale or disposition by the Company of all
or substantially all of the Company's assets other than the sale or disposition
of all or substantially all of the assets of the Company to one or more
Subsidiaries (as defined below) of the Company or to a person or persons who
beneficially own, directly or indirectly, at least fifty percent (50%) or more
of the combined voting power of the outstanding voting securities of the Company
at the time of the sale or disposition. "Subsidiary" shall have the meaning set
forth in Section 424 of the Internal Revenue Code of 1986, as amended or
superceded, and the term shall also include any partnership, limited liability
company or other business entity if the Company owns, directly or indirectly,
securities or other ownership interests representing at least fifty percent
(50%) of the ordinary voting power or equity or capital interests of such
entity. Notwithstanding any of the foregoing, the formation of Equistar
Chemicals, LP ("Equistar") and the contribution of assets by Millennium
Petrochemicals Inc. to Equistar on December 1, 1997 shall not constitute a
Change in Control, and the sale or disposition of all or any part of the
Company's interests in Equistar shall not constitute a Change in Control.

          2. Section 3(e) is hereby amended and restated in its entirety to
read: "Company means Millennium Chemicals Inc." The parenthetical clause in
Section 3(g) shall be amended to refer to the operating companies of Millennium
Chemicals Inc., and all references to Hanson PLC shall be amended to refer to
Millennium Chemical Inc.

          3. In all other respects, the Plan is hereby ratified and confirmed.

          IN WITNESS WHEREOF, this amendment has been executed the 22nd day of
January, 1999.

                            MILLENNIUM CHEMICALS INC.

                            By: _____________________
                            George H. Hempstead, III




<PAGE>



<PAGE>


EXHIBIT 10.22
MILLENNIUM CHEMICALS INC. EXECUTIVE LONG-TERM INCENTIVE PLAN, AS AMENDED BY THE
TERMINATION AMENDMENT THERETO, DATED AS OF OCTOBER 23, 1997, AND AS FURTHER
AMENDED BY AMENDMENTS THERETO DATED JANUARY 23, 1998 AND JANUARY 22, 1999

                            MILLENNIUM CHEMICALS INC.

                       EXECUTIVE LONG-TERM INCENTIVE PLAN
                        (Effective as of January 1, 1997)

Section 1.     Establishment.

        Millennium Chemicals Inc., a Delaware corporation ("Millennium"), hereby
establishes, effective as of January 1, 1997, an unfunded incentive compensation
plan to be known as the "MILLENNIUM CHEMICALS INC. EXECUTIVE LONG-TERM INCENTIVE
PLAN" (hereinafter referred to as "the Plan").

Section 2.     Purpose.

        The purpose of this Plan is to retain and reward key policy making and
senior managerial employees for achieving long-term performance goals designed
to enhance shareholder value.

Section 3.     Definitions.

        Whenever used herein, the following terms shall have the meanings set
forth below:

        (a) Account means the account established under Section 6.

        (b) Award means an opportunity to earn an amount of incentive
            compensation granted in an Award Year to a Participant pursuant
            to Section 7.

        (c) Award Year means the calendar year in which Awards are granted.

        (d) Board of Directors means the Board of Directors of the Company,
            except as otherwise specifically stated.

        (e) Company means Millennium Chemicals Inc..

        (f) Earned Award means that portion of an Award earned by a
            Participant based on his or her Employer's and/or the Company's
            performance as measured at the end of each Performance Cycle
            against targets established by the Compensation Committee of the
            Board of Directors at the commencement of each Performance Cycle.



<PAGE>
<PAGE>



        (g) Employer means the respective operating company (Millennium
            Inorganic Chemicals Inc., Millennium Petrochemicals Inc. and
            Millennium Specialty Chemicals Inc. or an operating subsidiary of
            any such company, as the case may be) with whom a Participant is
            employed.

        (h) Participant means an executive or senior manager (or a former
            executive or senior manager) of an Employer who has been credited
            with one or more Awards under this Plan and whose Account has not
            been fully depleted by distributions or forfeitures.

        (i) Performance Cycle means a three-year period over which an Employer's
            performance shall be measured for purposes of determining the amount
            of an Earned Award by a Participant. A new Performance Cycle shall
            commence each January 1.

        (j) Retirement Age means the age at which a Participant attains normal
            retirement age for an unreduced benefit under the defined benefit
            plan in which he or she is a participant.

        (k) Total and Permanent Disability shall have the same meaning that such
            term (or similar term) has under the long-term disability plan in
            which the Participant is covered.

Section 4.  Eligible Executives.

        Participation in the Plan shall be limited to key policy making
executives and senior managers of the Company or an Employer, as selected and
approved by the Compensation Committee of the Board of Directors.

Section 5.  Period of Participation.

        An executive or senior manager for whom a grant has been made shall be a
Participant under the Plan until his or her entire interest in the Plan either
has been distributed or forfeited.

Section 6.  Account.

        The Company shall maintain a bookkeeping Account for each Participant,
to which is credited annual Awards, and from which is debited distributions of
Earned Awards and forfeitures under the Plan.

Section 7.  Awards.

        (a) At or shortly following the commencement of each Award Year, the
Compensation Committee of the Board of Directors shall designate the senior





<PAGE>
<PAGE>


executives and senior managers of an Employer to be eligible for grants of an
Award. All awards shall be in the form of a cash compensation award relating to
services to be performed and performance targets to be met in a Performance
Cycle. A Participant shall earn the Award or portion thereof, based on his or
her Employer's attainment of performance targets established by the Compensation
Committee of the Board of Directors for each Performance Cycle.

        (b) Performance Levels.

        The amount of an Award which can be earned will depend upon the
performance results of a Participant's Employer and/or the Company measured
against performance levels which are referred to as :

               (1) "primary" level performance; and

               (2) "excess" level performance.

        The Compensation Committee, in its sole discretion, may also establish
"entry" level performance goals which must be met before a participant is
eligible to earn any portion of his or her "primary" or "excess" level award.

        (c) Weighting. Awards may, in the sole discretion of the Compensation
            Committee, be weighted against the consolidated results of the
            Company and/or an Employer in such percentages as the Compensation
            Committee may determine.

        (d) Calculation. The initial value of each Participants Award shall be
            expressed as a percentage of a Participant's annual bonus percentage
            of salary, as determined by the Compensation Committee of the Board
            of Directors with regard to each Participant, at the commencement of
            each Performance Cycle (and excluding any "top hat", special or
            other incentive arrangements which may be in existence or adopted
            subsequent to the commencement of a Performance Cycle).

 Section 8. Payment of Awards.

        Subject to Section 11 herein: (i) for each Performance Cycle in which a
Participant earns an Award, he or she shall be paid 50% of the Earned Award
within ninety (90) days of the end of each such Performance Cycle and (ii) the
remaining 50% of the Earned Award shall be credited to an Account in the
Participant's name and, subject to the forfeiture provisions herein, shall be
paid or distributed in equal installments over five (5) years on the anniversary
date of the last day of the Performance Cycle for which such payments are being
made.



<PAGE>
<PAGE>


Section 9.  Interest.

        Simple interest shall be credited to each Earned Award, from and after
the last day of each Performance Cycle until paid, at the 2 1/2 year Money
Market Rate as reported by Chase Manhattan Bank or its successor at the end of
each Performance Cycle. Interest shall be paid only on and in respect of each
installment, as and when distributed.

 Section 10. Vesting in Account.

        A Participant shall be entitled to receive the remaining 50% of an
Earned Award at the rate of 10% per year over the five years following the end
of the Performance Cycle. A Participant shall be fully vested in Earned Awards
in his or her Account in the event of the Participant's retirement (as defined
in Section 3(j)), death, permanent or total disability or termination of
employment for reasons other than cause or resignation.

 Section 11. Forfeitures.

        In the event that either:

        (a) the Participant is terminated for cause, a forfeiture under this
            subsection (a) shall occur even if the Participant has attained his
            or her Retirement Age; or,

        (b) the Participant terminates employment (voluntarily or for cause)
            prior to Retirement Age, the Participant shall forfeit any remaining
            balance in his or her Account, and nothing shall be payable
            thereafter to the Participant or any Beneficiary under the Plan.

        For purposes of this agreement, "cause" shall mean the willful neglect
of the performance of duties by the Participant or the charge and ultimate
conviction of a felony (or a pleading of nolo contendere) by the Participant or
engaging in theft of company property, self dealing, having a conflict of
interest and/or being found to have willfully breached Company policy, whether
or not during the course of his or her employment.

Section 12. Death, Retirement, Disability.

        Upon termination of employment with the Company on or after the
Participant's Retirement Age, or on account of the Participant's Total and
Permanent Disability or Death, or for reasons other than cause or resignation,
he or she shall be paid the remaining Earned Awards held in the Participant's
Account in full in the form of a lump sum. Awards for the Performance Cycles in
which such death, retirement or disability occurs shall be paid to a disabled or
retired Participant or to the Participant's estate or beneficiary only after the
completion of that Performance Cycle and only to the extent



<PAGE>
<PAGE>


such Award becomes an Earned Award, provided the Participant has remained in the
employ of the Employer for the entire first year of each such Performance Cycle.

Section 13. Change of Control/Sale of an Employer.

        (a) Unless the Board of Directors otherwise directs by resolution prior
            to the occurrence of a Change of Control (as hereinafter defined),
            in the event of a Change of Control:

            (1)   As of the date of the Change of Control, 100% of all
                  outstanding but unearned Awards shall be deemed Earned Awards
                  to the extent of achievement of the "primary" or expected
                  level of performance against the performance goals of the
                  relevant performance cycle.

            (2)   Earned Awards, including unpaid installments of Earned Awards
                  outstanding prior to the Change of Control, shall not be
                  subject to forfeiture for any reason.

            (3)   Earned Awards, including installments of Earned Awards
                  outstanding prior to the Change of Control, shall be
                  distributed and paid in full within 90 days following the
                  Change of Control.

        (b) For purposes of this Section 13, "Change of Control" shall mean
            that:

            (1)   in the good faith judgment of the Board of Directors as
                  constituted prior to the Change of Control, 30% or more of the
                  Common Stock of Millennium Chemicals Inc. has been acquired by
                  any person (as defined by Section 3(a)(9) of the Securities
                  Exchange Act of 1934) other than directly from Millennium
                  Chemicals Inc.;

            (2)   the stockholders of Millennium Chemicals Inc. approve a merger
                  or consolidation of Millennium Chemicals Inc. with any other
                  corporation, other than a merger or consolidation which would
                  result in the voting securities of Millennium Chemicals Inc.
                  outstanding immediately prior thereto continuing to represent
                  (either by remaining outstanding or by being converted into
                  voting securities of the surviving entity) more than 50% of
                  the combined voting power of the voting securities of
                  Millennium Chemicals Inc. or such surviving entity outstanding
                  immediately after such merger or consolidation, except that a
                  merger or consolidation effected to implement a
                  recapitalization of Millennium Chemicals Inc. (or similar
                  transaction) in which no "person" (as hereinabove defined)
                  acquires more than 50% of the combined voting power of
                  Millennium Chemicals Inc.'s then outstanding securities shall
                  not constitute a Change of Control of Millennium Chemicals
                  Inc.; or



<PAGE>
<PAGE>



            (3)   20% or more of the directors elected by shareholders to the
                  Board of Directors of Millennium Chemicals Inc. are persons
                  who were not nominated or elected at the most recent three
                  annual meetings of the shareholders of Millennium Chemicals
                  Inc.; or

            (4)   the stockholders of Millennium Chemicals Inc. approve a plan
                  of complete liquidation of Millennium Chemicals Inc. or an
                  agreement for the sale or disposition by Millennium Chemicals
                  Inc. of all or substantially all of the Company's or
                  Millennium Chemicals Inc.'s assets.

        (c) In the event of a sale by the Company or by one of its affiliates of
            all of the stock or assets of an Employer of a Participant to any
            person, firm or entity (which is not a direct or indirect subsidiary
            or affiliate of the Company) and unless the purchaser of such
            Employer expressly assumes the provisions of this Plan with respect
            to such Employer, the Compensation Committee of the Board of
            Directors of the Company may determine and credit Awards for such
            Participants with respect to the current Performance Cycle(s),
            concurrent with such sale, as if it were the last day of such
            Performance Cycle(s) equal to the value of an Award for each such
            Participant during such Performance Cycle(s) assuming the "primary"
            or "expected" level of achievement was attained; in which case

            (1)   All Such Participants shall be fully vested in such level of
                  outstanding Awards in their Accounts and with respect to any
                  Earned Awards or portion thereof which have not been
                  distributed, and;

            (2)   All such Earned Awards in each such Participant's account,
                  shall be paid in cash to such Participant not later than 90
                  days following the closing of the sale of such Participant's
                  Employer.

For the avoidance of doubt, in the event that the stock of any Employer shall be
distributed, directly or indirectly, by way of a dividend, a distribution or
otherwise to Millennium Chemicals Inc.'s shareholders, such event shall not be
deemed to be a Change-in-Control, and the Employer shall thereupon be
responsible to each Participant of such Employer for any outstanding Awards or
Earned Awards depending on the Employer's performance for each Performance Cycle
in accordance with the provisions of this Plan; provided, however, in the event
of any such spin-off, the name of the new parent entity of the Employer shall be
substituted for Millennium Chemicals Inc. in the above provisions.

Source 14.  Source of Payment.

        Payments under this Plan shall be made out of the Employer's general
assets.



<PAGE>
<PAGE>



Source 15.  Unsecured Interest.

        No Participant or Beneficiary shall have any interest whatsoever in any
specific asset of the Employer or the Company. The right to receive payments
under the Plan shall be no greater than the right of any unsecured general
creditor of the Employer or the Company.

Section 16. Employment.

        Nothing in the Plan shall interfere with or limit the right of the
Company or the Employer to terminate any Participant's employment at any time.

Section 17. Nontransferability.

        In no event shall the Company make any payment under the Plan to any
assignee or creditor of a Participant or Beneficiary. No Participant or
Beneficiary shall have the right to alienate, anticipate or otherwise dispose of
any interest under the Plan and, to the extent permitted under applicable law,
any attempt to charge, garnish, execute upon or levy upon the same shall be void
and shall not be recognized or given effect by the Company.

Section 18. Administration.

        The Plan shall be administered by the Compensation Committee of the
Board of Directors who may from time to time establish rules for the
administration and interpretation of the Plan. The determination of the
Compensation Committee of the Company's Board of Directors on all questions of
interpretation or construction shall be final, binding and conclusive on all
persons.

Section 19. Applicable Law.

        The Plan shall be governed and construed in accordance with the laws of
the State of Delaware.

Section 20. Withholding.

        The Company and the Employer shall have the right to deduct from any
payments from the Plan the amount of any federal, state or local taxes which, in
the Company's sole determination, should be withheld.

Section 21. Amendment and Termination.

        The Company expects the Plan to continue, but since future conditions
affecting the Company and Participants cannot be foreseen, the Board of
Directors of the Company necessarily must and does hereby reserve the right to
amend, modify or



<PAGE>
<PAGE>


terminate the Plan at any time by action of the Board of Directors. Notice of
such amendment, modification or termination shall be given in writing to each
Participant.



As Approved by the Compensation Committee



- -------------------------------------
George H. Hempstead, III




<PAGE>
<PAGE>


                            MILLENNIUM CHEMICALS INC.

                              Termination Amendment

                                       To

          MILLENNIUM CHEMICALS INC. EXECUTIVE LONG-TERM INCENTIVE PLAN
                       (Effective as of October 23, 1997)
                                  (the "Plan")

        Any term of the Plan to the contrary notwithstanding the Plan shall be,
and it hereby is amended as follows:

1.      No additional awards shall be made under the plan and all Performance
        Cycles which have previously commenced shall end December 31, 1997.

2.      Awards granted under the Plan for the 1997-1999 performance period shall
        be deemed earned awards to the extent of the applicable percentage set
        forth opposite the employing Subsidiary's name on Schedule A attached
        hereto; provided, however, that any individual who is a participant in
        both the 1996 and 1997 Millennium Petrochemical Inc. Long Term Incentive
        Plan shall only be entitled to an earned award equal to the greater of:

          (i) 1996 "expected" level plus the 1997 "primary" level; or
         (ii) the 1997 award only at the percentage based on 1997's actual
              performance results (but excluding two-thirds of the Morris Fire
              proceeds).

3.      Such earned awards calculated under paragraph 2 of this amendment shall
        be paid to participants in three equal yearly installments of principal
        on December 15, 1998, December 15, 1999 and December 15, 2000; and, such
        installments shall bear interest at the rate provided in Section 9 of
        the Plan which shall be payable with the respective installments of
        principal; provided however, that participants in the 1997 Millennium
        Petrochemicals Inc. Plan shall be paid out their earned awards (to the
        extent being paid under this Plan) on February 15, 1998, without
        interest provided the joint venture with Lyondell Petrochemical Company
        shall have closed.

4.      A participant or the participant's estate or designated beneficiary will
        be paid the full remaining balance of the earned awards in his or her
        account in a single lump sum with interest as provided in Section 9 of
        the Plan to the date of payment on the occurrence of any of the
        following events:

        (a) death,

        (b) total and permanent disability (as defined in the Plan),



<PAGE>
<PAGE>


        (c) retirement (as defined in the retirement plan covering the
            participant),

        (d) termination not for cause, and

        (e) a Change of Control as defined in the Plan, however, the amount
            payable shall be limited to the sum calculated under Schedule A
            attached hereto.

5.      A participant's account balance will be forfeit in the event of a
        participant's voluntary separation from employment or termination for
        cause as defined in the Plan.

6.      No payment shall be made from the Plan except as set forth in this
        amendment and, at the time the last account is paid out from the Plan,
        the Plan shall terminate.



                                                      --------------------------




<PAGE>
<PAGE>



                                    AMENDMENT
                                     TO THE
          MILLENNIUM CHEMICALS INC. EXECUTIVE LONG-TERM INCENTIVE PLAN

               WHEREAS, Millennium Chemicals Inc. (the "Company") maintains the
Millennium Chemicals Inc. Long-Term Incentive Plan (effective as of October 1,
1997) (the "Plan");

               WHEREAS, pursuant to Section 21 of the Plan, the Board of
Directors of the Company (the "Board") reserves the right to amend the Plan;

               WHEREAS, the Board previously approved the "Termination
Amendment" to the Plan effective as of October 23, 1997 (the "Termination
Amendment"); and

               WHEREAS, the Board desires to amend the Plan;

               NOW, THEREFORE, effective as of January 1, 1998, the Plan is
amended as follows:

               1. Section 3 of the Termination Amendment to the Plan is amended
by adding the following sentence to the end thereof:

        Other than with respect to any participant in the 1997 Millennium
        Petrochemicals Inc. Plan, in lieu of any Award being distributed to a
        Participant pursuant to the previous sentence of this Section 3, a
        Participant may elect to have all or any part of such Award deferred
        under the Millennium Chemicals Inc. Salary and Bonus Deferral Plan and
        be subject to the terms of such plan (the "Deferred Award"); provided,
        however, that such Deferred Award shall continue to be subject to the
        forfeiture provisions of Section 11 of the Plan.

               2. In all other respects, the Plan is hereby ratified and
confirmed.

               IN WITNESS WHEREOF, this amendment has been executed the 23rd day
of January 1998.


                            MILLENNIUM CHEMICALS INC.


                            By: _____________________



<PAGE>
<PAGE>


                                    AMENDMENT
                                     TO THE
          MILLENNIUM CHEMICALS INC. EXECUTIVE LONG-TERM INCENTIVE PLAN

               WHEREAS, Millennium Chemicals Inc. (the "Company") maintains the
Millennium Chemicals Inc. Long-Term Incentive Plan (effective as of October 1,
1997) (the "Plan");

               WHEREAS, pursuant to Section 21 of the Plan, the Board of
Directors of the Company (the "Board") reserves the right to amend the Plan;

               WHEREAS, the Board previously approved the "Termination
Amendment" to the Plan effective as of October 23, 1997 and subsequently amended
Section 3 of such termination amendment effective as of January 1, 1998; and

               WHEREAS, the Board desires to further amend the Plan;

               NOW, THEREFORE, effective as of January 1, 1999, the Plan is
amended as follows:

               1. Section 13(b) to the Plan is amended and restated in its
entirely as follows:

        For purposes of this Section 13 Agreement, the term "Change in Control"
shall mean:

        (1) any "person" as such term is used in Sections 13(d) and 14(d) of the
Securities Exchange Act of 1934 ("Act") (other than the Company, any trustee or
other fiduciary holding securities under any employee benefit plan of the
Company or any company owned, directly or indirectly, by the stockholders of the
Company in substantially the same proportions as their ownership of Common Stock
of the Company), becoming the "beneficial owner" (as defined in Rule 13d-3 under
the Act), directly or indirectly, of securities of the Company representing
twenty-five percent (25%) or more of the combined voting power of the Company's
then outstanding securities;

        (2) during any period of two consecutive years (not including any period
prior to October 1, 1996), individuals who at the beginning of such period
constitute the Board of Directors of the Company, and any new director (other
than a director designated by a person who has entered into an agreement with
the Company to effect a transaction described in clause (1), (3), or (4) of this
paragraph or a director whose initial assumption of office occurs as a result of
either an actual or threatened election contest (as such terms are used in Rule
14a-11 of Regulation 14A promulgated under the Act) or other actual or
threatened solicitation of proxies or consents by or on behalf of a person other
than the Board of Directors of the Company) whose election by the Board of
Directors or nomination for election by the Company's stockholders was approved
by



<PAGE>
<PAGE>



a vote of at least two-thirds of the directors then still in office who
either were directors at the beginning of the two-year period or whose election
or nomination for election was previously so approved, cease for any reason to
constitute at least a majority of the Board of Directors;

        (3) the merger or consolidation of the Company with any other
corporation, other than a merger or consolidation which would result in the
voting securities of the Company outstanding immediately prior thereto
continuing to represent (either by remaining outstanding or by being converted
into voting securities of the surviving entity) more than fifty percent (50%) of
the combined voting power of the voting securities of the Company or such
surviving entity outstanding immediately after such merger or consolidation;
provided, however, that a merger or consolidation effected to implement a
recapitalization of the Company (or similar transaction) in which no person
(other than those covered by the exceptions in (1) above) acquires more than
twenty-five percent (25%) of the combined voting power of the Company's then
outstanding securities shall not constitute a Change in Control; or

        (4) the stockholders of the Company approve a plan of complete
liquidation of the Company or the closing of the sale or disposition by the
Company of all or substantially all of the Company's assets other than the sale
or disposition of all or substantially all of the assets of the Company to one
or more Subsidiaries (as defined below) of the Company or to a person or persons
who beneficially own, directly or indirectly, at least fifty percent (50%) or
more of the combined voting power of the outstanding voting securities of the
Company at the time of the sale or disposition. "Subsidiary" shall have the
meaning set forth in Section 424 of the Internal Revenue Code of 1986, as
amended or superceded and the term shall also include any partnership, limited
liability company or other business entity if the Company owns, directly or
indirectly, securities or other ownership interests representing at least fifty
percent (50%) of the ordinary voting power or equity or capital interests of
such entity. Notwithstanding any of the foregoing, the formation of Equistar
Chemicals, LP ("Equistar") and the contribution of assets by Millennium
Petrochemicals Inc. to Equistar on December 1, 1997 shall not constitute a
Change in Control, and the sale or disposition of all or any part of the
Company's interests in Equistar shall not constitute a Change in Control.

            3. In all other respects, the Plan is hereby ratified and confirmed.

            IN WITNESS WHEREOF, this amendment has been executed the 23rd day of
January, 1999.


                            MILLENNIUM CHEMICALS INC.


                            By: _____________________
                            George H. Hempstead, III



<PAGE>



<PAGE>

Exhibit 10.23(d)
Amendments dated December 10, 1998 and January 23, 1998 to the Millennium
Chemicals Inc. Long Term Stock Incentive Plan

                             AMENDMENT NUMBER THREE
                                     TO THE
                            MILLENNIUM CHEMICALS INC.
                         LONG TERM STOCK INCENTIVE PLAN

               WHEREAS, Millennium Chemicals Inc. (the "Company") maintains the
Millennium Chemicals Inc. Long Term Stock Incentive Plan (the "Plan"); and

               WHEREAS, pursuant to Article XIV of the Plan, the Board of
Directors of the Company (the "Board") has the right to amend the Plan; and

               WHEREAS, the Board desires to amend the Plan;

               NOW, THEREFORE, effective as of December 10, 1998, the Plan is
amended as follows:

               1.     Subsection 13.2(a) of the Plan is amended by deleting the
                      word "owner" in the one place it appears in such
                      subsection and substituting " `beneficial owner'" in lieu
                      thereof.

               2.     Subsection 13.2(d) is amended and restated to read as
                      follows:


                 the stockholders of the Company approve a plan of complete
liquidation of the Company or the closing of the sale or disposition by the
Company of all or substantially all of the Company's assets other than the sale
or disposition of all or substantially all of the assets of the Company to one
or more Subsidiaries (as defined below) of the Company or to a person or persons
who beneficially own, directly or indirectly, at least fifty percent (50%) or
more of the combined voting power of the outstanding voting securities of the
Company at the time of the sale or disposition. "Subsidiary" shall have the
meaning set forth in Section 424 of the Code and the term shall also include any
partnership, limited liability company or other business entity if the Company
owns, directly or indirectly, securities or other ownership interests
representing at least fifty percent (50%) of the ordinary voting power or equity
or capital interests of such entity. Notwithstanding any of the foregoing, the
formation of Equistar Chemicals, LP ("Equistar") and the contribution of assets
by Millennium Petrochemicals Inc. to Equistar on December 1, 1997 shall not
constitute a Change in Control, and the sale or disposition of all or any part
of the Company's interests in Equistar shall not constitute a Change in Control.

               3.     In all other respects, the Plan is hereby ratified and
                      confirmed.

               IN WITNESS WHEREOF, this amendment has been executed as of the
10th day of December, 1998.

                                                   MILLENNIUM CHEMICALS INC.


                                                   By:  ______________________



<PAGE>

<PAGE>


                                    AMENDMENT
                                     TO THE
                            MILLENNIUM CHEMICALS INC.
                         LONG TERM STOCK INCENTIVE PLAN


               WHEREAS, Millennium Chemicals Inc. (the "Company") maintains the
Millennium Chemicals Inc. Long Term Stock Incentive Plan (the "Plan"); and

               WHEREAS, pursuant to Article XIV of the Plan, the Board of
Directors of the Company (the "Board") has the right to amend the Plan; and

               WHEREAS, the Board desires to amend the Plan;

               NOW, THEREFORE, effective as of January 23, 1998, the Plan is
amended as follows:

               1. Subsection 11.1(a)(ii) and Subsection 11.1(a)(iii) of the Plan
are amended by (a) deleting the number "$15,000" in each place it appears and
(b) substituting the following in lieu thereof: "one-third of the annual
directors' retainer fee (as in effect on such date.)"

               2. In all other respects, the Plan is hereby ratified and
confirmed.

               IN WITNESS WHEREOF, this amendment has been executed the 23rd day
of January, 1998.


                                                   MILLENNIUM CHEMICALS INC.


                                                   By:________________________




<PAGE>



<PAGE>

EXHIBIT 10.28(c)
AMENDMENT NO. 2 DATED JANUARY 22, 1999, TO THE MILLENNIUM CHEMICALS INC.
SALARY AND BONUS DEFERRAL PLAN

                              AMENDMENT NUMBER TWO
                                     TO THE
                            MILLENNIUM CHEMICALS INC.
                         SALARY AND BONUS DEFERRAL PLAN

               WHEREAS, Millennium Chemicals Inc. (the "Company") adopted the
Millennium Chemicals Inc. Salary and Bonus Deferral Plan (the "Plan") for
the benefit of certain of its employees effective as of October 8, 1995;

               WHEREAS, pursuant to Section 5.1 of the Plan, the Board of
Directors of the Company (the "Board") may wholly or partially amend or modify
the Plan; and

               WHEREAS, the Board desires to amend the plan;

               NOW, THEREFORE, the Plan is amended as follows with respect to
all deferrals of income:

               1.   The Plan is amended by deleting Subsection 1.4(d) in its
                    entirety and substituting the following in lien thereof:

               (d) the stockholders of the Company approve a plan of complete
liquidation of the Company or the closing of the sale or disposition by the
Company of all or substantially all of the Company's assets other than the sale
or disposition of all or substantially all of the assets of the Company to one
or more Subsidiaries (as defined below) of the Company or to a person or persons
who beneficially, own, directly or indirectly, at least fifty percent (50%) or
more of the combined voting power of the outstanding voting securities of the
Company at the time of the sale or disposition. "Subsidiary" shall have the
meaning set forth in Section 424 of the Code and the term shall also include any
partnership, limited liability company or other business entity if the Company
owns, directly or indirectly, securities or other ownership interests
representing at least fifty percent (50%) of the ordinary voting power or equity
or capital interests of such entity. Notwithstanding any of the foregoing, the
formation of Equistar Chemicals, LP ("Equistar") and the contribution of assets
by Millennium Petrochemicals Inc. to Equistar on December 1, 1997 shall not
constitute a Change in Control, and the sale or disposition of all or any part
of the Company's interests in Equistar shall not constitute a Change in Control.

               2.   In all other respects, the Plan is hereby ratified
                    and confirmed.

 

<PAGE>
<PAGE>


               IN WITNESS WHEREOF, this amendment has been executed the
22nd day of January, 1999.


                                        MILLENNIUM CHEMICALS INC.

                                        By:_______________________
                                        George H. Hempstead
                                        Senior Vice President



<PAGE>



<PAGE>



EXHIBIT 10.29

       MILLENNIUM CHEMICALS INC. SUPPLEMENTAL SAVINGS AND INVESTMENT PLAN




                         THE MILLENNIUM CHEMICALS INC.
                    SUPPLEMENTAL SAVINGS AND INVESTMENT PLAN

                                        i



<PAGE>
<PAGE>

                                TABLE OF CONTENTS

                                   (CONTINUED)

<TABLE>
<CAPTION>


                                                                            Page
                                                                            ----

<S>                                                                    <C>
ARTICLE 1..............................................................PURPOSE 1
ARTICLE 2..........................................................DEFINITIONS 1
    2.1    "Affiliate".......................................................1

    2.2    "Board of Directors"..............................................1

    2.3    "Change in Control"...............................................1

    2.4    "Committee".......................................................2

    2.5    "Common Stock"....................................................3

    2.6    "Compensation"....................................................3

    2.7    "Compensation Deferral Account"...................................3

    2.8    "Employer"........................................................3

    2.9    "Matching Contributions Account"..................................3

    2.10   "Person"..........................................................3

    2.11   "Plan Year".......................................................3

    2.12   "SIP".............................................................3

    2.13   "Trustee".........................................................3

ARTICLE 3........................................ELIGIBILITY AND PARTICIPATION 3

ARTICLE 4...................................................DEFERRAL ELECTIONS 4
   
    4.1    Compensation Deferrals............................................4

    4.2    Elections.........................................................4

    4.3    Investment Alternatives...........................................4

    4.4    Vesting...........................................................5

    4.5    Relationship to SIP...............................................5

ARTICLE 5...............................................MATCHING CONTRIBUTIONS 5

    5.1    Matching Contributions............................................5

    5.2    Dividends.........................................................5

    5.3    Vesting...........................................................5

    5.4    Adjustment Event..................................................5

</TABLE>


                                       ii


<PAGE>
<PAGE>
                                TABLE OF CONTENTS

                                   (CONTINUED)

<TABLE>
<CAPTION>

                                                                            Page
                                                                            ----

<S>                                                                    <C>


    5.5    Relationship to SIP...............................................6

ARTICLE 6........................................................DISTRIBUTIONS 6

    6.1    Distribution Events...............................................6

    6.2    Form..............................................................6

    6.3    Termination of Employment.........................................6

    6.4    Retirement........................................................6

ARTICLE 7...................................................MANDATORY DEFERRAL 7

ARTICLE 8....................................................CHANGE IN CONTROL 7

ARTICLE 9.......................................................ADMINISTRATION 7

    9.1    Responsibility....................................................7

    9.2    Delegation of Authority...........................................7

    9.3    Determinations and Interpretations by the Committee...............7

ARTICLE 10..............................................................CLAIMS 7

    10.1   Claims Procedure..................................................7

    10.2   Claims Review Procedure...........................................8

ARTICLE 11..................................................GENERAL PROVISIONS 8

    11.1   Withholding Taxes.................................................8

    11.2   Assignability and Transferability.................................8

    11.3   Funding...........................................................9

    11.4   No Right, Title, or Interest in Company Assets....................9

    11.5   No Right to Continued Employment..................................9

    11.6   Governing Law.....................................................9

ARTICLE 12..........................................AMENDMENT AND TERMINATION 10

    12.1   Right to Amend, Suspend or Terminate.............................10

    12.2   Termination......................................................10

    12.3   No Impairment....................................................10

</TABLE>


                                      iii


<PAGE>
<PAGE>


                          THE MILLENNIUM CHEMICALS INC.
                    SUPPLEMENTAL SAVINGS AND INVESTMENT PLAN


                                    ARTICLE 1
                                     PURPOSE

          This Millennium Chemicals Inc. Supplemental Savings and Investment
Plan (this "Plan") is an unfunded plan for the purpose of providing deferred
compensation for a select group of management or highly compensated employees of
Millennium Chemicals Inc. (the "Company") and its affiliates in excess of the
limitations imposed by Section 415 of the Internal Revenue Code of 1986, as
amended (the "Code"). This Plan is intended to be exempt from coverage of the
Employee Retirement Income Security Act of 1974, as amended ("ERISA"). This Plan
shall be effective as of February 11, 1999 (the "Effective Date") and shall
continue unless terminated by the Company.

                                   ARTICLE 2
                                  DEFINITIONS

          In addition to the terms specifically defined elsewhere in this Plan,
the following terms shall have the respective meanings indicated (unless the
context indicates otherwise):

     2.1 "Affiliate" means any corporation, partnership, limited liability
company or other business entity in respect of which the Company owns, directly
or indirectly, the outstanding securities or other ownership interests
representing fifty percent (50%) or more of the combined voting power, equity or
capital interests of such entity.

     2.2 "Board of Directors" means the Board of Directors of the Company.

     2.3 "Change in Control" means the first to occur with respect to the
Company:

          (a) any "person" as such term is used in Sections 13(d) and 14(d) of
the Securities Exchange Act of 1934 ("Act") (other than the Company, any trustee
or other fiduciary holding securities under any employee benefit plan of the
Company or any company owned, directly or indirectly, by the stockholders of the
Company in substantially the same proportions as their ownership of Common Stock
of the Company), becoming the "beneficial owner" (as defined in Rule 13d-3 under
the Act), directly or indirectly, of securities of the Company representing
twenty-five percent (25%) or more of the combined voting power of the Company's
then outstanding securities;

          (b) during any period of two consecutive years (not including any
period prior to October 1, 1996), individuals who at the beginning of such
period constitute the Board of Directors of the Company, and any new director
(other than a


<PAGE>
<PAGE>



director designated by a person who has entered into an agreement with the
Company to effect a transaction described in clause (a), (c), or (d) of this
paragraph or a director whose initial assumption of office occurs as a result of
either an actual or threatened election contest (as such terms are used in Rule
14a-11 of Regulation 14A promulgated under the Act) or other actual or
threatened solicitation of proxies or consents by or on behalf of a person other
than the Board of Directors of the Company) whose election by the Board of
Directors or nomination for election by the Company's stockholders was approved
by a vote of at least two-thirds of the directors then still in office who
either were directors at the beginning of the two-year period or whose election
or nomination for election was previously so approved, cease for any reason to
constitute at least a majority of the Board of Directors;

          (c) the merger or consolidation of the Company with any other
corporation, other than a merger or consolidation which would result in the
voting securities of the Company outstanding immediately prior thereto
continuing to represent (either by remaining outstanding or by being converted
into voting securities of the surviving entity) more than fifty percent (50%) of
the combined voting power of the voting securities of the Company or such
surviving entity outstanding immediately after such merger or consolidation;
provided, however, that a merger or consolidation effected to implement a
recapitalization of the Company (or similar transaction) in which no person
(other than those covered by the exceptions in (a) above) acquires more than
twenty-five percent (25%) of the combined voting power of the Company's then
outstanding securities shall not constitute a Change in Control; or

          (d) the stockholders of the Company approve a plan of complete
liquidation of the Company or the closing of the sale or disposition by the
Company of all or substantially all of the Company's assets other than the sale
or disposition of all or substantially all of the assets of the Company to one
or more Subsidiaries (as defined below) of the Company or to a person or persons
who beneficially own, directly or indirectly, at least fifty percent (50%) or
more of the combined voting power of the outstanding voting securities of the
Company at the time of the sale or disposition. "Subsidiary" shall have the
meaning set forth in Section 424 of the Internal Revenue Code of 1986, as
amended or superseded, and the term shall also include any partnership, limited
liability company or other business entity if the Company owns, directly or
indirectly, securities or other ownership interests representing at least fifty
percent (50%) of the ordinary voting power or equity or capital interests of
such entity. Notwithstanding any of the foregoing, the formation of Equistar
Chemicals, LP ("Equistar") and the contribution of assets by Millennium
Petrochemicals Inc. to Equistar on December 1, 1997 shall not constitute a
Change in Control, and the sale or disposition of all or any part of the
Company's interests in Equistar shall not constitute a Change in Control.

     2.4 "Committee" means the Company's Pension and Benefits Administration
Committee, or such other committee as may be designated by the Board of
Directors to administer this Plan from time to time.

                                       2


<PAGE>
<PAGE>


     2.5 "Common Stock" means the common stock, $.01 par value, of the Company,
subject to adjustment as provided in Section 5.4.

     2.6 "Compensation" means, in respect of a Plan Year, the sum of the amount
reported by the Company to the Internal Revenue Service on Form W-2 as the
participant's compensation for such calendar year, the amount of any
Compensation Deferral Contributions (as defined in the SIP) made on such
participant's behalf to the SIP, and the amount, if any, contributed to a
cafeteria plan that is excluded from gross income pursuant to Section 125 of the
Code; provided, however, that Compensation shall not include termination or
severance pay, prizes, awards, grievance settlements, overseas cost of living
allowances, relocation allowances, mortgage assistance, executive perquisites,
stock options and such other extraordinary items or remuneration as the
Committee shall determine from time to time.

     2.7 "Compensation Deferral Account" means the bookkeeping account
established under Section 4.1 on behalf of a participant and includes, in
addition to the amounts stated in Section 4.1, any investment return credited
thereon pursuant to Section 4.3.

     2.8 "Employer" means the Company, Millennium Inorganic Chemicals Inc.,
Millennium Petrochemicals Inc., Millennium Pigments Inc., Millennium Specialty
Chemicals Inc. and any other Affiliate authorized by the Board of Directors to
participate in this Plan.

     2.9 "Matching Contributions Account" means the bookkeeping account
established under Section 5.1 on behalf of a participant and includes, in
addition to the amounts stated in Section 5.1, any dividend reinvestment return
credited thereon pursuant to Section 5.2.

     2.10 "Person" means any person or entity of any nature whatsoever,
including but not limited to an individual, firm, company, corporation,
partnership or trust.

     2.11 "Plan Year" means the calendar year.

     2.12 "SIP" means the Millennium Savings and Investment Plan.

     2.13 "Trustee" means the corporate trustee appointed from time to time by
the Company to administer any grantor trust established in accordance with
Section 11.3.


                                   ARTICLE 3
                          ELIGIBILITY AND PARTICIPATION

          Participation in this Plan in respect of each Plan Year shall be
determined by the Committee in its discretion and shall be limited to any
individual who is an employee of an Employer, who is a participant in the SIP,
whose Compensation is likely to exceed $160,000 (as thereafter adjusted for
inflation in accordance with Section 401(a)(17)(B) of the Code), and who, prior
to such Plan Year, has elected to make the maximum elective deferrals under the
SIP as determined pursuant to Section 402(g) of

                                       3


<PAGE>
<PAGE>


the Code (subject to any cost-of-living adjustment in accordance with Section
415(d) of the Code).

                                   ARTICLE 4
                               DEFERRAL ELECTIONS

     4.1 Compensation Deferrals. A participant may elect to defer from one
percent to six percent (1% to 6%) (or such greater or lesser percentage as the
Committee may from time to time prescribe), in whole percentages, of his or her
Compensation, and such amounts shall be credited to such participant's
Compensation Deferral Account as of each payroll date to which it pertains;
provided, however, that the amount of any Compensation Deferral Contributions
(as defined in the SIP) made by an Employer on behalf of a participant to the
SIP shall reduce the amount of any compensation deferrals made on behalf of such
participant under this Plan.

     4.2 Elections. Any deferral election by a participant in respect of any
Plan Year shall be made no later than June 30 of the prior Plan Year on forms to
be furnished by the Committee and, once made, cannot be changed or revoked
during such Plan Year; provided, however, that in the case of an individual who
first becomes eligible to participate in this Plan after the deferral election
deadline in respect of a Plan Year, any deferral election by such individual
must be made within thirty (30) days following the date such individual first
becomes a participant; and provided, further, that such deferral election shall
apply only to amounts that are both paid and earned for services performed, in
each case after the date the election is made. Notwithstanding the preceding
sentence, deferral elections for the 1999 Plan Year shall be made no later than
November 30, 1998.

     4.3 Investment Alternatives.

          (a) A participant may select the investment return to be applied to
the amounts credited to his or her Compensation Deferral Account by reference to
the return earned by the investment alternatives offered by the Company from
time to time. Any selection of investment return in respect of a participant's
Compensation Deferral Account shall be in made in whole percentages on forms to
be furnished by the Committee or by contacting the Millennium Chemicals Savings
and Investment Plan Service Center.

          (b) A participant may change the investment return to be applied to
the amounts credited to his or her Compensation Deferral Account on forms to be
furnished by the Committee or by contacting the Millennium Chemicals Savings and
Investment Plan Service Center; provided, however, that any such investment
return change shall apply prospectively in respect of future compensation
deferrals or existing amounts credited to such account.

          (c) The Committee may in its discretion apply the investment return to
the amounts credited to a participant's Compensation Deferral Account in
accordance with such participant's selection under this Section 4.3.

                                       4


<PAGE>
<PAGE>


     4.4 Vesting. A participant shall be fully vested in the amounts credited to
his or her Compensation Deferral Account at all times.

     4.5 Relationship to SIP. Whenever the Committee shall prescribe such
greater or lesser percentages in respect of the amount of Compensation Deferral
Contributions (as defined in the SIP) that may be elected in any payroll period
in respect of the SIP, such prescription shall automatically apply to the
compensation deferrals under this Plan, unless such prescription expressly
provides otherwise.

                                   ARTICLE 5
                             MATCHING CONTRIBUTIONS

     5.1 Matching Contributions. The Company shall make matching contributions
to this Plan, in respect of each payroll period, equal to seventy-five percent
(75%) (or such greater or lesser percentage, not exceeding one hundred percent
(100%), as the Board of Directors may from time to time authorize) of that
portion of a participant's compensation deferrals which do not exceed six
percent (6%) (or such other percentage as the Board of Directors may from time
to time authorize); provided, however, that the amount of any Employer Matching
Contributions (as defined in the SIP) made by an Employer on behalf of a
participant in the SIP shall reduce the amount of any matching contributions
made on behalf of such participant under this Plan. The amount of such matching
contributions shall be credited in the form of Common Stock to a participant's
Matching Contributions Account as soon as practicable following each payroll
date in substantially the same manner as Employer Matching Contributions (as
defined in the SIP) are credited to participants' accounts under Sections 8.4
and 8.6 of the SIP (or any section of the SIP which amends or supersedes such
sections).

     5.2 Dividends. Whenever the Company shall declare a dividend on its Common
Stock, each participant's Matching Contributions Account will be adjusted in
substantially the same manner as in the SIP.

     5.3 Vesting. A participant shall be fully vested in the amounts credited to
his or her Matching Contribution Account at all times.

     5.4 Adjustment Event. Subject to Article 8, in the event there is any
change in the Common Stock, through merger, consolidation, reorganization,
recapitalization, stock dividend, stock split, reverse stock split, split-up,
split-off, spin-off, combination of shares, exchange of shares, dividend in kind
or other like change in capital structure or cash dividends to stockholders of
the Company (an "Adjustment Event"), the number of shares of Common Stock
credited to a participant's Matching Contributions Account shall be
appropriately adjusted (rounded down to the nearest one hundredth of a share) by
the Committee in its sole judgment so as to give appropriate effect to such
Adjustment Event such that the participant's Matching Contributions Account
reflects the same equity percentage in the Company after such Adjustment Event
as was the case before such Adjustment Event.

                                       5


<PAGE>
<PAGE>


     5.5 Relationship to SIP. Whenever the Board of Directors shall authorize
such greater percentage in respect of the amount of Employer Matching
Contributions (as defined in the SIP) that may be made in any payroll period in
respect of the SIP, such authorization shall automatically apply to the matching
contributions under this Plan, unless such authorization expressly provides
otherwise.

                                   ARTICLE 6
                                  DISTRIBUTIONS

     6.1 Distribution Events. No payment shall be made under this Plan to a
participant until the earliest to occur of the following events with respect to
such participant:

          (a) Except as provided in Section 6.3, termination of employment with
the Employer;

          (b) Retirement (as defined in the SIP) from the Employer;

          (c) Death; or

          (d) Disability (as determined under the Employer's long term
disability plan applicable to the participants).

     6.2 Form. Distributions under this Plan shall be payable in cash unless,
with respect to a participant's Matching Contributions Account, a participant
elects to have the amount credited to such account paid in Common Stock.

     6.3 Termination of Employment. In the case of a participant's termination
of employment (other than for retirement) with the Employer, including as a
result of death or disability, the accrued balance in such participant's
Compensation Deferral Account and Matching Contribution Account shall be paid in
lump sum to the participant or his or her beneficiary, as applicable, as soon as
practicable following such event; provided, however, that in the event of the
sale of all or any substantial portion of the stock or assets of an Employer to
an entity which (i) does not assume and maintain the obligations of the Company
under this Plan with respect to participants of such Employer who are
subsequently employed by such entity, the Company, in its discretion, may allow
such participant to continue participation in this Plan until the earlier of any
distribution event set forth in Section 6.1 (except that the term Employer shall
be replaced by such entity) or (ii) does assume and maintain the obligations of
the Company under this Plan with respect to participants of such Employer who
are subsequently employed by such entity, such sale shall not be treated as
resulting in a termination of employment with the Employer until the participant
actually terminates employment with such entity.

     6.4 Retirement. In the case of a participant's retirement (as defined in
the SIP) from the Employer, the accrued balance in such participant's
Compensation Deferral Account and Matching Contribution Account shall be paid
(a) in lump sum in the January following the year of retirement or (b) if
elected at least one full intervening Plan Year in

                                       6


<PAGE>
<PAGE>


advance, (i) in a lump sum on the date of retirement or (ii) prorated annual
distributions for up to ten (10) years commencing in the January following the
year of retirement.

                                   ARTICLE 7
                               MANDATORY DEFERRAL

          Notwithstanding Article 6, the Compensation Committee of the Board of
Directors may require a participant to defer all or a portion of any payment
from his or her Compensation Deferral Account or Matching Contributions Account
in any case where the Company anticipates that such payment or portion thereof
would be nondeductible pursuant to Section 162(m) of the Code.

                                   ARTICLE 8
                                CHANGE IN CONTROL

          Notwithstanding any other provision of this Plan, in the event of a
Change in Control, the amount of a participant's Compensation Deferral Account
and Matching Contribution Account shall be distributed in lump sum to such
participant as soon as practicable thereafter.

                                   ARTICLE 9
                                 ADMINISTRATION

     9.1 Responsibility. The Committee shall be the administrator of this Plan.
The Committee shall have the responsibility, in its sole discretion, to control,
operate, manage and administer this Plan in accordance with its terms and shall
have all the discretionary authority that may be necessary or helpful to enable
it to discharge its responsibilities with respect to this Plan.

     9.2 Delegation of Authority. The Committee may delegate to one or more of
its members, or to one or more agents, such administrative duties as it may deem
advisable; provided, however, that any such delegation shall be in writing. In
addition, the Committee or any such delegate may employ one or more Persons to
render advice with respect to any responsibility the Committee or such delegate
may have under this Plan. The Committee or any such delegate may employ such
legal or other counsel, consultants and agents as it may deem desirable for the
administration of this Plan and may rely upon any opinion or computation
received from any such counsel, consultant or agent.

     9.3 Determinations and Interpretations by the Committee. All determinations
and interpretations made by the Committee in good faith shall be binding and
conclusive on all Participants and their heirs, successors and legal
representatives.

                                   ARTICLE 10
                                     CLAIMS

     10.1 Claims Procedure. If any participant or his or her designated
beneficiary has a claim for amounts which are not being paid, such claimant may
file with the

                                       7
 

<PAGE>
<PAGE>

Committee a written claim, in such form as is provided or approved by the
Committee, setting forth the amount and nature of the claim, supporting facts,
and the claimant's address. The Committee shall notify each claimant of its
decision in writing by registered or certified mail within ninety (90) days
after its receipt of a claim, unless special circumstances require an extension
of time for processing the claim. If such an extension of time is required,
written notice of the extension shall be furnished to the claimant prior to the
termination of the initial ninety (90) day period, which notice shall specify
the special circumstances requiring an extension and the date by which a final
decision will be reached (which date shall not be later than one hundred eighty
(180) days after the date on which the claim was filed). If a claim is denied,
the written notice of denial shall set forth the reasons for such denial, refer
to pertinent Plan provisions on which the denial is based, describe any
additional material or information necessary for the claimant to realize the
claim, and explain the claim review procedure under this Plan.

     10.2 Claims Review Procedure. A claimant whose claim has been denied or
such claimant's duly authorized representative may file, within sixty (60) days
after notice of such denial is received by the claimant, a written request for
review of such claim by the Committee. If a request is so filed, the Committee
shall review the claim and notify the claimant in writing of its decision within
sixty (60) days after receipt of such request. In special circumstances, the
Committee may extend for up to sixty (60) additional days the deadline for its
decision. The notice of the final decision of the Committee shall include the
reasons for its decision and specific references to the provisions of this Plan
on which the decision is based. The decision of the Committee shall be final and
binding on all parties.

                                   ARTICLE 11
                               GENERAL PROVISIONS

     11.1 Withholding Taxes. By participation in this Plan, each participant
shall be deemed to (a) agree to reimburse the Company for any taxes required by
any governmental regulatory authority to be withheld or otherwise deducted by
such entity in respect of the payment of any amounts hereunder, and (b)
authorize the Company to withhold the amount from any Compensation paid to the
participant or on the participant's behalf, an amount sufficient to discharge
such taxes and which otherwise has not been reimbursed by the participant, in
respect of the payment of any amounts hereunder.(a)

     11.2 Assignability and Transferability. (a) No interest in this Plan shall
be assignable or transferable by a participant other than by will or the laws of
descent and distribution. Any purported assignment or transfer of an interest in
this Plan to a creditor of a participant shall be null and void, and such
interest may be forfeited at the discretion of the Committee.

          (b) The Company may assign its obligations under this Plan with
respect to participants whose employment is terminated and who are employed by a
successor entity pursuant to Section 6.3, provided that such successor entity
agrees to assume such obligations with respect to such participants.

                                       8


<PAGE>
<PAGE>

     11.3 Funding.

          (a) The Company shall make no provision for the funding of any
Deferral Compensation Accounts or Matching Contribution Accounts payable under
this Plan that would cause this Plan to be a funded plan for purposes of Section
404(a)(5) of the Code or Title I of ERISA, or would cause this Plan to be other
than an "unfunded and unsecured promise to pay money or other property in the
future" under Treasury Regulations 'SS' 1.83-3(e). Except following a Change in
Control, the Company shall have no obligation to make any arrangement for the
accumulation of funds to pay any amounts under this Plan. Subject to the
preceding sentence, the Company, in its sole discretion, may establish one or
more grantor trusts described in subpart E, part I, subchapter J, chapter 1,
subtitle A of the Code to accumulate shares of Common Stock or other amounts to
pay amounts under this Plan, provided that the assets of such trusts shall be
required to be used to satisfy the claims of the Company's general creditors in
the event of the Company's bankruptcy or insolvency.

          (b) In the event that the Company shall decide to establish an advance
accrual reserve on its books against the future expense of payments under the
Compensation Deferral Accounts and Matching Contributions Accounts, such reserve
shall not under any circumstances be deemed any asset of this Plan but, at all
times, shall remain a part of the general assets of the Company subject to the
claims of the Company's general creditors.

     11.4 No Right, Title, or Interest in Company Assets. Participants shall
have no right, title, or interest whatsoever in or to any investments which the
Company may make to aid it in meeting its obligations under this Plan. Nothing
contained in this Plan, and no action taken pursuant to its provisions, shall
create a trust of any kind, or a fiduciary relationship between the Company and
any participant, beneficiary, legal representative or any other Person. To the
extent that any Person acquires a right to receive payments from the Company
under this Plan, such right shall be no greater than the right of an unsecured
general creditor of the Company. All payments to be made hereunder shall be paid
from the general funds of the Company, including any grantor trust described in
Section 11.3. This Plan is not intended to be subject to ERISA.

     11.5 No Right to Continued Employment. The participant's rights, if any, to
continue in the employ of the Company shall not be enlarged or otherwise
affected by his or her participation in this Plan, and the Company reserves the
right to terminate the employment of any participant at any time, subject to any
limitations or procedures as may be set forth in a separate employment or
retention agreement between the Company and such participant.

     11.6 Governing Law. This Plan, all awards granted hereunder, and all
actions taken in connection herewith shall be governed by and construed in
accordance with the laws of the State of New Jersey without reference to
principles of conflict of laws, except as superseded by applicable federal law.

                                       9


<PAGE>
<PAGE>


                                   ARTICLE 12
                            AMENDMENT AND TERMINATION

     12.1 Right to Amend, Suspend or Terminate. The Board of Directors may
amend, suspend or terminate this Plan at any time with or without prior notice,
provided, however, that no action authorized by this Article 12 shall impair any
rights or benefits which theretofore accrued hereunder without the written
consent of the affected participants.

     12.2 Termination. Upon a termination of this Plan, the Committee may, but
is not required to, pay out all amounts under this Plan.

     12.3 No Impairment. The following events shall not constitute an impairment
of any rights or benefits under this Plan: (a) any payout of amounts under this
Plan pursuant to Section 12.2, (b) any change to the investment alternatives
offered by the Company from time to time pursuant to Section 4.3 or (c) any
amendment of the term Change in Control, provided such amendment shall not be
effective for at least six (6) months following its adoption.

                                       10




<PAGE>



<PAGE>


EXHIBIT 10.36
AMENDED AND RESTATED PARTNERSHIP AGREEMENT OF EQUISTAR

                                                       EXECUTION COPY

                              AMENDED AND RESTATED

                               LIMITED PARTNERSHIP

                                    AGREEMENT

                                       OF

                             EQUISTAR CHEMICALS, LP

                          ORGANIZED UNDER THE DELAWARE
                     REVISED UNIFORM LIMITED PARTNERSHIP ACT

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>

                                                                        PAGE

       <S>              <C>                                             <C> 

        APPENDICES

           APPENDIX A - Defined Terms
           APPENDIX B - Partnership Financial Statements and Reports
           APPENDIX C - Executive Officers
           APPENDIX D - Dispute Resolution Procedures
           APPENDIX E - Division of Partnership Business

        SCHEDULES

                        Schedule 2.3(d) - Capital Accounts

</TABLE>





<PAGE>
<PAGE>


                              AMENDED AND RESTATED
                          LIMITED PARTNERSHIP AGREEMENT
                                       OF
                             EQUISTAR CHEMICALS, LP

     This Amended and Restated Limited Partnership Agreement of Equistar
Chemicals, LP dated May 15, 1998 is entered into by and among Lyondell
Petrochemical G.P. Inc., a Delaware corporation ("Lyondell GP"), Lyondell
Petrochemical L.P. Inc., a Delaware corporation ("Lyondell LP"), Millennium
Petrochemicals GP LLC, a Delaware limited liability company ("Millennium GP"),
Millennium Petrochemicals LP LLC, a Delaware limited liability company
("Millennium LP"), PDG Chemical Inc., a Delaware corporation ("Occidental GP"),
Occidental Petrochem Partner 1, Inc., a Delaware corporation ____ ("Occidental
LP1"), and Occidental Petrochem Partner 2, Inc., a Delaware corporation 
("Occidental LP2," and together with Occidental LP1, "Occidental LP").

     The definitions of capitalized terms used in this Agreement, including the
appendices hereto, are set forth in Appendix A hereto.

     WHEREAS, Lyondell GP, Lyondell LP, Millennium GP and Millennium LP
(together, the "Initial Partners") entered into the Limited Partnership
Agreement of Equistar Chemicals, LP dated October 10, 1997 (the "Initial
Agreement"), pursuant to the Initial Master Transaction Agreement between
Lyondell Petrochemical Company, a Delaware corporation ("Lyondell"), the
ultimate parent entity of each of Lyondell GP and Lyondell LP, and Millennium
Chemicals Inc., a Delaware corporation ("Millennium"), the ultimate parent
entity of each of Millennium GP and Millennium LP;

     WHEREAS, the Initial Partners contributed their Initial Assets to the
Partnership on the Initial Closing Date and the Initial Related Agreements
relating to the Partnership and their Contributed Businesses were entered into,
all as provided in the Initial Master Transaction Agreement;

     WHEREAS, the Partnership, Occidental Petroleum Corporation , a Delaware
corporation ("Occidental"), the ultimate parent entity of each of Occidental GP,
Occidental LP1 and Occidental LP2 (together, the "Occidental Partners"),
Lyondell and Millennium have entered into the Master Transaction Agreement dated
May 15, 1998 (the "Second Master Transaction Agreement"), which provides, among
other things, for the admission of Occidental GP as a general partner of the
Partnership and of each of Occidental LP1 and Occidental LP2 as a limited
partner of the Partnership, subject to and upon the terms and conditions set
forth therein; and




<PAGE>
<PAGE>


     WHEREAS, simultaneous with the execution and delivery of this Agreement,
(i) the Occidental Partners are contributing to the Partnership their Initial
Assets and Contributed Business in accordance with the Occidental Contribution
Agreement (which involves, in the case of Occidental LP2, the merger of Oxy
Petrochemicals and the Partnership, with the Partnership as the surviving
entity); (ii) Lyondell, Millennium, Occidental and certain Occidental Affiliates
are entering into the Amended and Restated Parent Agreement and (iii) the
Additional Related Agreements are being entered into;

     NOW, THEREFORE, in consideration of the premises and the mutual covenants
of the parties hereto, it is hereby agreed as follows:


     The Certificate of Limited Partnership was filed with the Secretary of
State of the State of Delaware on October 17, 1997. The Initial Agreement was
entered into October 10, 1997. The Partners desire to enter into this Agreement
which amends and restates the Initial Agreement and constitutes the limited
partnership agreement of the Partnership as of the date hereof. Except as
expressly provided herein to the contrary, the rights and obligations of the
Partners and the administration and termination of the Partnership shall be
governed by the Act. Without the need for the consent of any other Person, upon
the execution of this Agreement by each of the parties hereto, (i) Occidental GP
is hereby admitted to the Partnership as a general partner of the Partnership,
(ii) Occidental LP1 is hereby admitted to the Partnership as a limited partner
of the Partnership and (iii) Occidental LP2 is hereby admitted to the
Partnership as a limited partner of the Partnership. Subject to the restrictions
set forth in this Agreement, the Partnership shall have the power to exercise
all the powers and privileges granted by this Agreement and by the Act, together
with any powers incidental thereto, so far as such powers and privileges are
necessary, appropriate, convenient or incidental for the conduct, promotion or
attainment of the purposes of the Partnership.

  The name of the Partnership is "Equistar Chemicals, LP" The Partnership's
business may be conducted under such name or any other name or names deemed
advisable by the Partnership Governance Committee. The General Partners will
comply or cause the Partnership to comply with all applicable laws and other
requirements relating to fictitious or assumed names.

      The principal place of business of the Partnership shall be 1221 McKinney
Street, Houston, Texas 77010, or such other place as the General Partners may
from time to time determine. The registered agent of the Partnership in the
State of Delaware is The Corporation Trust Company, 1209 Orange Street,
Wilmington, Delaware 19801.

     The business of the Partnership shall be to, directly or indirectly, (i)
engage in the Specified Petrochemicals Businesses, in the United States and
internationally, including research and development, purchasing, processing and
disposing of feedstocks, and manufacturing, marketing and distributing products,
(ii) acquire and dispose of properties and assets used or useful in connection
with the foregoing and (iii) do all things necessary, appropriate, convenient or
incidental in connection with the ownership, operation or financing of such
business and




<PAGE>
<PAGE>




activities, or otherwise in connection with the foregoing, as are permitted
under the Act, including the acquisition and operation of the Contributed
Businesses.

     The General Partners shall, or shall cause the Partnership to, execute, 
swear to, acknowledge, deliver, file or record in public offices and publish
all such certificates, notices, statements or other instruments, and take
all such other actions, as may be required by law for the formation,
reformation, qualification, registration, operation or continuation of the
Partnership in any jurisdiction, to maintain the limited liability of the
Limited Partners, to preserve the Partnership's status as a partnership for tax
purposes or otherwise to comply with applicable law. Upon request of the General
Partners, the Limited Partners shall execute all such certificates and other
documents as may be necessary, in the sole judgment of the General Partners, in
order for the General Partners to accomplish all such executions, swearings,
acknowledgments, deliveries, filings, recordings in public offices, publishings
and other acts. Each General Partner hereby agrees and covenants that it will
execute any appropriate amendment to the Certificate of Limited Partnership of
the Partnership pursuant to Section 17-204 of the Act to reflect any admission
of a Substitute General Partner and of Occidental GP in accordance with this
Agreement.

     Each Limited Partner hereby irrevocably makes, constitutes and appoints its
Affiliated General Partner and any successor thereto permitted as provided
herein, with full power of substitution and resubstitution, as the true and
lawful agent and attorney-in-fact of such Limited Partner, with full power and
authority in the name, place and stead of such Limited Partner to execute,
swear, acknowledge, deliver, file or record in public offices and publish: (i)
all certificates and other instruments (including counterparts thereof) which
such General Partner deems appropriate to reflect any amendment, change or
modification of or supplement to this Agreement in accordance with the terms of
this Agreement; (ii) all certificates and other instruments and all amendments
thereto which such General Partner deems appropriate or necessary to form,
qualify or continue the Partnership in any jurisdiction, to maintain the limited
liability of such Limited Partner, to preserve the Partnership's status as a
partnership for tax purposes or otherwise to comply with applicable law; and
(iii) all conveyances and other instruments or documents which such General
Partner deems appropriate or necessary to reflect the transfers or assignments
of interests in, to or under, this Agreement, including the Units, the
dissolution, liquidation and termination of the Partnership, and the
distribution of assets of the Partnership in connection therewith, pursuant to
the terms of this Agreement.

     Each Limited Partner hereby agrees to execute and deliver to its Affiliated
General Partner within five Business Days after receipt of a written request
therefor such other further statements of interest and holdings, designations,
powers of attorney and other instruments as such General Partner deems
necessary. The power of attorney granted herein is hereby declared irrevocable
and a power coupled with an interest, shall survive the bankruptcy, dissolution
or termination of such Limited Partner and shall extend to and be binding upon
such Limited Partner's successors and permitted assigns. Each Limited Partner
hereby (i) agrees to be bound by any representations made by the agent and
attorney-in-fact acting in good faith pursuant to such power of attorney; and
(ii) waives any and all defenses which may be available to contest, negate, or
disaffirm any action of the agent and attorney-in-fact taken in accordance with
such power of attorney.

     The term for which the Partnership is to exist as a limited partnership is
from the date the Partnership's Certificate of Limited Partnership was filed
with the office of the Secretary of State




<PAGE>
<PAGE>


of the State of Delaware through the dissolution of the Partnership in
accordance with the provisions of Section 12.


     In exchange for the contributions provided for in Section 2.3, Occidental 
LP1, Occidental LP2 and Occidental GP shall receive the Units set forth by their
names below, and effective on the date hereof, the Units shall be owned as
follows:

<TABLE>
<CAPTION>
                          PARTNER                         UNITS
                      <S>                                <C>
                        Lyondell GP                         820
                       Millennium GP                        590
                       Occidental GP                        295
                         Lyondell LP                     40,180
                       Millennium LP                     28,910
                       Occidental LP1                     6,623
                       Occidental LP2                    22,582
                           TOTAL                        100,000

The Units shall entitle the holder to the distributions set forth in Section 3
and to the allocation of Profits, Losses and other items as set forth in Section
4. Units shall not be represented by certificates.

     If the Partnership is entitled to deductions with respect to costs
described in either Section 6.10 of the Initial Master Transaction Agreement or
Section 6.10 of the Second Master Transaction Agreement to which a Partner is
not entitled to reimbursement, the incurrence of such costs shall not increase
the Capital Account of such a Partner, and such Partner shall be entitled to any
deductions attributable to such costs.


     (a) Pursuant to their Contribution Agreement, on the date hereof,
Occidental LP1, Occidental LP2 and Occidental GP have contributed or caused to
be contributed to the Partnership, the Initial Assets contemplated thereby
subject to the Assumed Liabilities contemplated thereby (which involves, in the
case of Occidental LP2, the merger of Oxy Petrochemicals and the Partnership,
with the Partnership as the surviving entity).

     (b) The Partners intend that the contribution of assets subject to
liabilities heretofore made by the Partners to the Partnership and to be made
pursuant to Section 2.3(a) has qualified and will qualify as a tax-free
contribution under Section 721 of the Code in which no Partner has recognized or
will recognize gain or loss. The Partners agree that the Partnership will so
file its tax return, and each Partner agrees to file its tax return on the same
basis and to maintain such position consistently at all times thereafter.

     (c) Immediately after the contributions by Occidental GP, Occidental LP1,
and Occidental LP2, the Capital Accounts of the Initial Partners shall be
adjusted so that each Partner's Capital Account would be the same per Unit as
that of every other Partner on the date 




<PAGE>
<PAGE>


hereof if on such date the principal and accrued interest on the Lyondell Note
were paid and the special capital distributions accrued interest provided in
Sections 3.1(e), (f), and (g) were made.

     (d) Schedule 2.3(d) sets forth the Capital Accounts of the Partners as if
the contributions and distributions referred to in Section 2.3(c) were made.

     From time to time and subject to the limitations of Section 6.7, if
applicable, the Partnership Governance Committee (or the CEO acting pursuant to
Section 8.3), on behalf of the Partnership, may issue a written notice ("Funding
Notice") to the Limited Partners calling for an additional capital contribution
to the Partnership. Any Funding Notice will set forth:

     (a) the use of funds therefor;

     (b) the aggregate amount of the capital contribution required, which amount
shall be apportioned among the Limited Partners Pro Rata; and

     (c) the date by which the capital contribution must be received by the
Partnership, which date will not be earlier than seven Business Days from the
date the Funding Notice is issued.

Each Limited Partner shall timely wire transfer its Pro Rata share of the amount
set forth in the Funding Notice to the Partnership's bank account. Except as
expressly set forth in this Agreement, no Partner shall be permitted or required
to make any additional capital contribution to the Partnership.

     Each Partner's Capital Account shall be determined and maintained in
accordance with Regulation 'SS'1.704-1(b)(2)(iv) as reasonably interpreted by
the Tax Matters Partner. The Tax Matters Partner shall have the discretion,
after consultation with the other General Partners, to make those
determinations, valuations, adjustments and allocations with respect to each
Partner's Capital Account as it deems appropriate so that the allocations made
pursuant to this Agreement will have substantial economic effect as such term
is used in Regulation 'SS'1.704-1(b). If any Partner transfers all or a portion
of its Units in accordance with the terms of this Agreement, the transferee
shall succeed to the Capital Account of the transferor to the extent such
Capital Account relates to the transferred Units.

     Except as provided in Sections 3 and 4, no Partner shall receive any 
interest or other return on its capital contributions or on the balance in its
Capital Account and no return of its capital contributions.

     A Partner or its Affiliates may loan funds to the Partnership on such terms
and conditions as may be approved by the Partnership Governance Committee, and,
subject to other applicable law, have the same rights and obligations with
respect thereto as a Person who is neither a Partner nor an Affiliate of a
Partner. The existence of such a relationship and acting in such a capacity will
not result in a Limited Partner being deemed to be participating in the control
of the business of the Partnership or otherwise affect the limited liability of
a Partner. If a Partner or any Affiliate thereof is a lender, in exercising its
rights as a lender, including making its decision whether to foreclose on
property of the Partnership, such lender will have no duty to consider (i) its
status as a Partner or an Affiliate of a Partner, (ii) the interests of the
Partnership, or (iii) any duty it may have to any other Partner or the
Partnership.




<PAGE>
<PAGE>


     The administration and investment of Partnership funds shall be in
accordance with the procedures and guidelines as shall be adopted by the 
Partnership Governance Committee. The Partnership may delegate to a third party
(which may be an Affiliate of one of the Partners) the responsibility for
administering and investing Partnership funds pursuant to such guidelines.

     Subject to Section 17-607 of the Act and other applicable law, Available 
Net Operating Cash shall be distributed as soon as practicable following the
end of each month to the Partners as follows:


     (a) General. On a cumulative basis from the date of the admission of
Occidental GP, Occidental LP1 and Occidental LP2, (i) distributions are to be
made to the Partners Pro Rata to the extent of cumulative Profits, and (ii) the
remaining distributions are to be made to the Limited Partners Pro Rata. For
simplicity, however, in the absence of extraordinary transactions, the
Partnership may make monthly distributions to the Partners Pro Rata, subject to
subsequent adjustments as provided below in this Section 3.1.

     (b) Return of Excess Distributions. Within 90 days after the end of each
year, each General Partner shall return to the Partnership any amount it
receives for such year that is in excess of its share of the sum of the
cumulative undistributed Profits as of the end of the preceding year and the
Profits for such year.

     (c) Effect of Operating Losses. For any year in which a General Partner's
share of a Loss is sustained that exceeds its previously undistributed Profits,
no distributions shall be made to such General Partner in any subsequent year
until such excess Loss is recouped, and for subsequent years only Profits in
excess of such recoupment shall be treated as Profit for purposes of this
Section 3.1.

     (d) Makeup Distributions. If for any reason the Partnership does not make a
monthly distribution to all Partners Pro Rata, each General Partner shall be
entitled at the end of the year to receive the amount necessary to make its
aggregate distributions for the year equal the amount it was entitled to receive
and keep pursuant to the preceding criteria.

     (e) Lyondell Note Proceeds. All principal and interest received on the
Lyondell Note shall be distributed among the Initial Partners in the ratio of
the Units owned by them prior to the admission of the Occidental Partners.

     (f) 1998 Credit Facility Proceeds. At such time as the Partnership enters
into the 1998 Credit Facility, the Partnership shall make a special distribution
to Millennium LP of $75 million, plus interest on such amounts from May 15,
1998, until such distribution at a per annum rate (based on a year of 360 days
and the number of days elapsed) equal to the LIBOR Rate plus 60 basis points
(.60%). The interest payments shall be treated as payment for the use of capital
to which section 707(c) of the Code applies.

     (g) Bank Credit Agreement Proceeds. At such time as the Partnership enters
into the 1998 Credit Facility, the Partnership shall draw down the Bank Credit
Agreement Repayment




<PAGE>
<PAGE>



Amount under the 1998 Credit Facility and shall apply the Bank Credit Agreement
Repayment Amount to the repayment of the principal amount then outstanding under
the Bank Credit Agreement. Two Business Days after such repayment, the
Partnership shall draw down $419,700,000 under the Bank Credit Agreement and
make a special distribution to Occidental LP2 of the $419,700,000 proceeds of
such drawdown plus interest on such $419,700,000 from May 15, 1998 until the
date of such distribution at a per annum rate (based on a year of 360 days and
the number of days elapsed) equal to the LIBOR Rate plus 60 basis points (.60%),
provided that Occidental Chemical Corporation has executed the Amended and
Restated Indemnity Agreement. The interest payment shall be treated as payment
for the use of capital to which section 707(c) of the Code applies.

     Distributions to the Partners of cash or property arising from a 
liquidation of the Partnership shall be made in accordance with the Capital
Account balances of the Partners as provided in Section 12.2(d).

     The Partnership is authorized to withhold from distributions to a Partner
and to pay over to a foreign, federal, state or local government, any amounts
required to be withheld pursuant to the Code or any provisions of any other
foreign, federal, state or local law. Any amounts so withheld shall be treated
as distributed to such Partner pursuant to this Section 3 for all purposes of
this Agreement, and shall be offset against any amounts otherwise distributable
to such Partner.

     Any amount otherwise distributable to a Partner pursuant to this Section 3
shall, unless otherwise agreed by two Representatives of each of the
Nonconflicted General Partners pursuant to Section 6.8, be applied by the
Partnership to satisfy any of the following obligations that are owed by such
Partner or its Affiliate to the Partnership and that are not paid when due:

     (a) Lyondell Note and Other Notes. In the case of Lyondell LP, the failure
to pay any interest or principal when due on the Lyondell Note or, in the case
of any Partner, the failure to pay any interest or principal when due on any
indebtedness for borrowed money of such Partner or any Affiliate of such Partner
to the Partnership.

     (b) Contribution Agreement. In the case of any Partner, the failure of such
Partner or any Affiliate of such Partner to make any payment pursuant to Section
6 of its Contribution Agreement that has been Finally Determined to be due.

     (c) Contribution. In the case of any Partner, the failure to make any
capital contribution required pursuant to this Agreement (other than pursuant to
its Contribution Agreement).


     This section controls partnership allocations for book purposes. As used
herein, "book" means the allocations used to determine debits and credits to the
Capital Accounts of the Partners and to determine the amounts distributable to
the Partners pursuant to Section 3 and Section 12.2(d). It does not refer to the
method in which books are maintained for financial reporting purposes pursuant
to Section 5.2. Except as otherwise provided in Sections 4.2 and 4.3, Profits or
Losses




<PAGE>
<PAGE>



for book purposes shall be allocated each year among the Partners Pro Rata,
subject to the following:

     (a) If the tax basis in Partnership assets is increased as a result of the
distribution of $75 million to Millennium LP as provided in Section 3.1(f), book
deductions equal to the tax deductions resulting from such increase shall be
allocated to Millennium LP until such time as gain or income is allocable under
(c) below.

     (b) If the tax basis in Partnership assets is increased as a result of the
distribution of 43% of the proceeds of the Lyondell Note to Millennium LP, book
deductions equal to the tax deductions resulting from such increase shall be
allocated among the Initial Partners in the ratio of the Units owned by each
prior to the admission of the Occidental Partners until gain or income is
allocable under (c) below.

     (c) If during any 12 month period the Partnership sells, distributes to
Partners, or otherwise disposes of more than 50% in value of the assets it owned
at the beginning of such period, gain or income recognized in the taxable period
of such sale, distribution or other disposition or thereafter recognized from
the sale, distribution, or other disposition of property or from the operation
of other property shall be allocated to the Partners in the ratio in which the
aggregate amount of deductions described in (a) and (b) above were allocated to
the Partners until the aggregate amount of such gain and income so allocated
equals the aggregate amount of such deductions.

     (d) Interest accruing on the Lyondell Note shall continue to be allocated
among the Initial Partners in the ratio of the Units owned by them prior to the
admission of the Occidental Partners.

     (e) The initial agreed value of the Lease will be amortized ratably over
the term of the Lease, and the resulting deductions shall be allocated to
Occidental LP1. Any gain recognized on the disposition of the Lease shall be
allocated to Occidental LP1. If, prior to such disposition, the Partnership has
made capital improvements to such assets that have been borne by the Partners
Pro Rata, then upon the disposition of the Lease with such improvements, gain
shall be deemed to be attributable to such improvements to the extent of the
excess of its depreciated value for GAAP purposes at the time of the disposition
over its Book Value at such time, and such gain shall be allocated to the
Partners Pro Rata.

     (f) Deductions attributable to the Book Value of the assets of the
Partnership as they exist immediately after the contributions described in
Section 2.3(a) other than the Lease will be allocated among the Partners other
than Occidental LP1 in the ratio of the Units owned by each, and any gain
recognized on the disposition of such contributed assets will be allocated to
the Partners other than Occidental LP1 in the ratio of the Units owned by each.
If, prior to disposition of such asset sale, the Partnership has made capital
improvements to such assets that have been borne by the Partners Pro Rata, then
upon the disposition of a contributed asset with such improvements, gain shall
be deemed to be attributable to such improvements to the extent of the excess of
its depreciated value for GAAP purposes at the time of disposition over its Book
Value at such time, and such gain shall be allocated to the Partners Pro Rata.

     If during a year Units are transferred or new Units issued, allocations
among the Partners shall be made in accordance with their interests in the
Partnership from time to time during such year




<PAGE>
<PAGE>



in accordance with Section 706 of the Code, using the closing-of-the-books
method, except that depreciation and other amortization with respect to each
Partnership asset shall be deemed to accrue ratably on a daily basis over the
entire period during such year that the asset is owned and in service by the
Partnership.

     The special rules in this Section 4.3 apply in the following order to take
into account the possibility of the Partners' having deficit Capital Account
balances for which they are not economically responsible and the effect of the
Partnership's incurring nonrecourse debt, directly or indirectly.

     (a) Partnership Minimum Gain Chargeback. If there is a net decrease in
"partnership minimum gain" during any year, determined in accordance with the
tiered partnership rules of Regulation 'SS'1.704-2(k), each Partner shall be
allocated items of income and gain for such year equal to such Partner's share
of the net decrease in partnership minimum gain within the meaning of Regulation
'SS'1.704-2(g)(2), except to the extent not required by Regulation
'SS'1.704-2(f). To the extent that this subsection (a) is inconsistent with
Regulation 'SS'1.704-2(f) or 'SS'1.704-2(k) or incomplete with respect to such
regulations, the minimum gain chargeback provided for herein shall be applied
and interpreted in accordance with such regulations.

     (b) Partner Minimum Gain Chargeback. If there is a net decrease in "partner
nonrecourse debt minimum gain" during any year, within the meaning of Regulation
'SS'1.704-2(i)(2), each Partner who has a share of such gain, determined in
accordance with Regulation 'SS'1.704-2(i)(5), shall be allocated items of
income and gain for such year (and, if necessary, subsequent years) equal to
such Partner's share of the net decrease in partner nonrecourse debt minimum
gain. To the extent that this subsection (b) is inconsistent with Regulation
'SS'1.704-2(i) or 1.704-2(k) or incomplete with respect to such regulations,
the partner nonrecourse debt minimum gain chargeback provided for herein shall
be applied and interpreted in accordance with such regulations.

     (c) Deficit Account Chargeback and Qualified Income. If any Partner has an
Adjusted Capital Account Deficit at the end of any year, including an Adjusted
Capital Account Deficit for such Partner caused or increased by an adjustment,
allocation or distribution described in Regulation 'SS'1.704-1(b)(2)(ii)(d)(4),
(5) or (6), such Partner shall be allocated items of income and gain (consisting
of a pro rata portion of each item of Partnership income, including gross income
and gain) in an amount and manner sufficient to eliminate such Adjusted Capital
Account Deficit as quickly as possible. This subsection (c) is intended to
constitute a "qualified income offset" pursuant to Regulation
'SS'1.704-1(b)(2)(ii)(d) and shall be interpreted consistently therewith.

     (d) Partner Nonrecourse Deductions. Any partner nonrecourse deductions for
any year or other period shall be allocated to the Partner who bears the
economic risk of loss with respect to the partner nonrecourse debt to which such
partner nonrecourse deductions are attributable in accordance with Regulation
'SS'1.704-2(i) or 'SS'1.704-2(k).

     (e) Curative Allocations. The Allocations provided by this Section 4.3 may
not be consistent with the manner in which the Partners intend to divide
Profits, Losses and similar items. Accordingly, Profits, Losses and other items
will be reallocated among the Partners (in the same year and to the extent
necessary, in subsequent years) in a manner consistent with Regulation
'SS'1.704-1(b) and 1.704-2 so as to prevent such allocations from distorting
the manner




<PAGE>
<PAGE>


in which Profits, Losses and other items are intended to be allocated among the
Partners pursuant to Sections 4.1 and 4.2.

     (f) Nonrecourse Debt Sharing. For purposes of this Agreement, nonrecourse
deductions, within the meaning of Regulation 'SS'1.704-2(b), shall be deemed to
be allocated among the Partners Pro Rata. Solely for purposes of determining a
Partner's proportionate share of the "excess nonrecourse liabilities" of the
Partnership within the meaning of Regulation 'SS'1.752-3(a)(3), Partnership
Profits are allocated to the Partners Pro Rata.


     (a) General Rule. Except as otherwise provided in the following paragraphs
of this Section 4.4, allocations for federal income tax purposes of items of
income, gain, loss and deduction, and credits and basis therefor, shall be made
in the same manner as book allocations are made.

     (b) Elimination of Book/Tax Disparities. Taxable income and tax deductions
shall be shared among the Partners so as to take into account the variation
between the Book Value and the adjusted tax basis of each property at the time
it is contributed to the Partnership and at each time it is revalued.

               (i) To account for such variation, effective as of the formation
               of the Partnership:

                      (A) the depreciation and other deductions attributable to
               the basis that the contributing Partner had in each property at
               the time of contribution shall be allocated to such Partner, and

                      (B) upon disposition of a contributed property, the excess
               of its Book Value at such time over its tax basis at such time
               shall be allocated to the Partner who contributed the property.

               (ii) If the Book Value of a Partnership property is revalued as
        of a date subsequent to the date of its acquisition by the Partnership,
        the portion of its Book Value at the time of its disposition that is
        attributable to the increase resulting from such revaluation:

                      (A) shall be disregarded in applying Section 4.4(b)(i)(B)
               to the partner who contributed such property, and

                      (B) shall be treated for purposes of this Section 4.4(b)
               as a separate property that was contributed on the revaluation
               date by the persons who were partners immediately prior to the
               revaluation date.

               (iii) The Partners agree that the foregoing allocations
        constitute a reasonable method for purposes of Reg. 1.704-3(a)(1) and
        will be so reported and defended by the Partnership and all Partners
        unless and until the Partners otherwise agree or a court otherwise
        requires.




<PAGE>
<PAGE>



     (c) Allocation of Items Among Partners. Each item of income, gain, loss,
deduction and credit and all other items governed by Section 702(a) of the Code
shall be allocated among the Partners in proportion to the allocation of
Profits, Losses and other items to such Partners hereunder, provided that any
gain treated as ordinary income because it is attributable to the recapture of
any depreciation or amortization shall be allocated among the Partners in
accordance with Prop. Treas. Reg. 'SS''SS'1.1245-1(e)(2) and 1.1250-1(f), or,
upon promulgation of final regulations with respect to the matters covered
therein, such final regulations.

     (d) Section 754 Election Allocations. Income and deductions of the
Partnership that are attributable to the Section 754 election shall be allocated
to the Partners entitled thereto.

     Items of income, gain, loss, deduction, credit and tax preference for
state, local and foreign income tax purposes shall be allocated among the
Partners in a manner consistent with the allocation of such items for federal
income tax purposes in accordance with the foregoing provisions of this Section.


     The fiscal year of the Partnership shall be the calendar year.

     For financial reporting purposes, the Partnership shall adopt a standard
set of accounting policies and shall maintain separate books of account, all in
accordance with GAAP. The Partnership's financial reports shall comply with
requirements of the SEC to the extent applicable to the Partnership and any
Partner or any controlling Person of such Partner, to the extent such
information is necessary, in conjunction with the financial reporting
obligations of such Person under applicable SEC requirements.


     (a) Proper and complete records and books of account of the Partnership's
business, including all such transactions and other matters as are usually
entered into records and books of account maintained by businesses of like
character or as are required by law, shall be kept by the Partnership at the
Partnership's principal place of business. None of the Partnership's funds shall
be commingled with the funds of any Partner.

     (b) Each Partner and its internal and independent auditors, at the expense
of such Partner, shall have full and complete access to the internal and
independent auditors of the Partnership and shall have the right to inspect such
books and records and the physical properties of the Partnership during normal
business hours and, at its own expense, to cause an independent audit thereof.
The Partnership shall make all books and records of the Partnership available to
such Partner and its internal and independent auditors in connection with such
audit and shall cooperate with such Partner and auditors and to provide any
assistance reasonably necessary in connection with such audit.

     The Partnership shall prepare and deliver to the Partners the Partnership
financial statements and reports described on Appendix B as soon as reasonably
practicable and in any event on or prior to the due date indicated on Appendix
B.




<PAGE>
<PAGE>



     For purposes of making allocations and distributions hereunder (including
distributions in liquidation of the Partnership in accordance with Capital
Account balances as required by Section 12.3), Capital Accounts and Profits,
Losses and other items described in Section 4.1 shall be determined in
accordance with federal income tax accounting principles utilizing the accrual
method of accounting, with the adjustments required by Regulation
'SS'1.704-1(b) to properly maintain Capital Accounts.


     (a) Status of the Partnership. The Partners acknowledge that the
Partnership is a partnership for federal, foreign and state income tax purposes,
and hereby agree not to elect to be excluded from the application of Subchapter
K of Chapter 1 of Subtitle A of the Code or any similar state statute.

     (b) Tax Elections and Reporting.

               (i) Generally. The Partnership has made or shall make the
        following elections under the Code and the Regulations and any similar
        state statutes:

                      (A) Adopt the calendar year as the annual accounting
               period;

                      (B) Adopt the accrual method of accounting;

                      (C) Elect to deduct organization costs ratably over a
               60-month period as provided in Section 709 of the Code;

                      (D) Adopt the LIFO method of accounting for inventory; and

                      (E) Make any other elections available under the Code that
               the Partnership Governance Committee determine are appropriate,
               with the determination of whether an election is appropriate to
               be made pursuant to the principle that each Partner shall be
               treated equally (i.e., no Partner will receive preferential tax
               treatment to the disadvantage of another Partner).

               (ii) Section 754 Election. The Partnership shall, upon the
        written request of any Partner benefitted thereby, cause the Partnership
        to file an election under Section 754 of the Code and the Regulations
        thereunder to adjust the basis of the Partnership assets under Section
        734(b) or 743(b) of the Code, and a corresponding election under the
        applicable sections of state and local law.

     (c) Tax Returns. The Tax Matters Partner, on behalf of the Partnership,
shall prepare and file the necessary tax and information returns. Each Partner
shall timely provide such information, if any, as may be needed by the
Partnership for purposes of preparing such tax and information returns. At least
75 days before the due date (as extended) for the Partnership's federal income
tax return, the Tax Matters Partner shall deliver a draft of such return to each
Partner. Each Partner shall have 15 Business Days after receipt of the draft in
which to furnish any objections or comments on the draft to the Tax Matters
Partner. The Tax Matters Partner shall make its best efforts to finalize the
Partnership's federal income tax return at least 30 days before the due date for
filing (as extended) of such return A Partner may not report its share of 




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<PAGE>




any Partnership tax item in a manner inconsistent with the Partnership's
reporting of such item unless the Partner has timely furnished its objection to
the Tax Matters Partner as provided in the immediately preceding sentence. If a
Partner reports its share of any Partnership tax item in a manner inconsistent
with the Partnership's reporting of such item, such Partner shall promptly
notify the Partnership in writing at least 20 Business Days prior to the filing
of any statement with the IRS in which such inconsistent position is reported.
The Partnership shall promptly deliver to each Partner a copy of the federal
income tax return for the Partnership as filed with the appropriate taxing
authorities and a copy of any material state and local income tax return as
filed.

     (d) Tax Audits.

               (i) Federal Tax Matters. The Partnership is authorized to make
        such filings with the IRS as may be required to designate Lyondell GP as
        the Tax Matters Partner. The Tax Matters Partner, as an authorized
        representative of the Partnership, shall direct the defense of any
        claims made by the IRS to the extent that such claims relate to the
        adjustment of Partnership items at the Partnership level. The Tax
        Matters Partner shall promptly deliver to each Partner a copy of all
        notices, communications, reports or writings of any kind (including,
        without limitation, any notice of beginning of administrative
        proceedings or any report explaining the reasons for a proposed
        adjustment) received from the IRS relating to or potentially resulting
        in an adjustment of Partnership items, as well as any other information
        requested by a Partner that is commercially reasonable to request. The
        Tax Matters Partner shall be diligent and act in good faith in deciding
        whether to contest at the administrative and judicial level any proposed
        adjustment of a Partnership item and whether to appeal any adverse
        judicial decision. The Tax Matters Partner shall keep each Partner
        advised of all material developments with respect to any proposed
        adjustment that comes to its attention. All costs incurred by the Tax
        Matters Partner in performing under this subsection (d) shall be paid by
        the Partnership. The Tax Matters Partner shall have sole authority to
        represent the Partnership in connection with all tax audits, including
        the power to extend the statute of limitations, to enter in any
        settlement, and to litigate any proposed partnership adjustment, subject
        to the following: (A) No settlement will be entered into with respect to
        an item that would materially affect any Partner adversely unless each
        Partner is first notified of the terms of the settlement; and no Partner
        will be bound by any settlement unless it consents thereto; (B) If a
        Partner does not consent to a settlement, the settlement will
        nevertheless be binding on all partners who do consent; and the
        non-consenting Partner may, at its sole cost, pursue such administrative
        or judicial remedies as it deems appropriate; (C) If the Tax Matters
        Partner brings an action in any court, each Partner, at its sole cost,
        shall have the right to intervene in the preceding to the extent
        permitted by the court; and (D) If a settlement or litigation causes
        Partners to be treated differently for tax purposes with respect to
        certain tax issues of the Partnership, the income and deductions of the
        Partnership thereafter arising will be allocated among the Partners to
        reflect the varying manner in which the issues were resolved.

               (ii) State and Local Tax Matters. The Partnership shall promptly
        deliver to each Partner a copy of all notices, communications, reports
        or writings of any kind with respect to income or similar taxes received
        from any state or local taxing authority relating to the Partnership
        which might, in the judgment of the Tax Matters Partner, materially and
        adversely affect any Partner, and shall keep each Partner advised of all




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<PAGE>



        material developments with respect to any proposed adjustment of
        Partnership items which come to its attention.

               (iii) Continuation of Rights. Each Partner shall continue to have
        the rights described in this subsection (d) with respect to tax matters
        relating to any period during which it was a Partner, whether or not it
        is a Partner at the time of the tax audit or contest.

     (e) Tax Rulings. No Person other than the Tax Matters Partner shall request
an administrative ruling (or similar administrative procedures) from any taxing
authority with respect to any tax issue relating to the Partnership or affecting
the taxation of any other Partner unless such Person shall have received written
authorization from the Tax Matters Partner and any such other Partner to make
such request.

     (f) Tax Information. At the request of any Partner, the Tax Matters Partner
shall timely furnish all reasonably obtainable information required to prepare
annual earnings and profits computations (as defined in Section 312 of the Code)
with respect to that Partner's share of Partnership income.

     The Partners agree that all of the tasks to be performed under this Section
(other than serving as Tax Matters Partner) may be delegated to employees and
consultants of the Partnership.


     (a) The General Partners hereby establish a committee (the "Partnership
Governance Committee") to manage and control the business, property and affairs
of the Partnership, including the determination and implementation of the
Partnership's strategic direction. The Partnership Governance Committee (on
behalf of the Partners) shall have (i) the full authority of the General
Partners to exercise all of the powers of the Partnership and (ii) full control
over the business, property and affairs of the Partnership. Except to the extent
set forth in this Agreement, the Partnership Governance Committee shall have
full, exclusive and complete discretion to manage and control the business,
property and affairs of the Partnership, to make all decisions affecting the
business, property and affairs of the Partnership and to take all such actions
as it deems necessary, appropriate, convenient or incidental to accomplish the
purpose of the Partnership as set forth in Section 1.4 (as such purpose may be
expanded in accordance with Section 6.7(i)).

     (b) The Partnership Governance Committee shall act exclusively by means of
Partnership Governance Committee Action. As used in this Agreement, "Partnership
Governance Committee Action" means any action which the Partnership Governance
Committee is authorized and empowered to take in accordance with this Agreement
and the Act and which is taken by the Partnership Governance Committee either
(i) by action taken at a meeting of the Partnership Governance Committee duly
called and held in accordance with this Agreement or (ii) by a formal written
consent complying with the requirements of Section 6.5(f). In no event shall the
Partnership Governance Committee be authorized to act other than by Partnership
Governance Committee Action, and any action or purported action by the
Partnership Governance Committee (including any authorization, consent,
approval, waiver, decision or vote) not constituting a Partnership Governance
Committee Action shall be null and void and of 




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<PAGE>


no force and effect. Each Partnership Governance Committee Action shall be
binding on the Partnership.

     (c) The Partnership Governance Committee shall adopt policies and
procedures, not inconsistent with this Agreement (including Section 6.7) or the
Act, governing financial controls and legal compliance, including delegations of
authority (and limitations thereon) to the officers of the Partnership as
permitted hereby. Such policies and procedures may be revised or revoked (in a
manner consistent with this Agreement and the Act) from time to time as
determined by the Partnership Governance Committee. To the extent any authority
is not delegated to officers of the Partnership in this Agreement or in
accordance with Partnership Governance Committee Action, it shall remain with
the Partnership Governance Committee.

     Except as expressly set forth in this Agreement, each General Partner
agrees to exercise its authority to manage and control the Partnership only
through Partnership Governance Committee Action. Each General Partner agrees not
to exercise, or purport or attempt to exercise any authority (i) to act for or
incur, create or assume any obligation, liability or responsibility on behalf of
the Partnership or any other Partner, (ii) to execute any documents on behalf
of, or otherwise bind, or purport or attempt to bind, the Partnership or (iii)
to otherwise transact any business in the Partnership's name, in each case
except pursuant to Partnership Governance Committee Action.

     Except as expressly set forth in this Agreement, no Person or Persons other
than (i) the General Partners, acting through the Partnership Governance
Committee, and (ii) the officers of the Partnership appointed in accordance with
this Agreement and acting as agents or employees, as applicable, of the
Partnership in conformity with this Agreement and any applicable Partnership
Governance Committee Action, shall be authorized (a) to exercise the powers of
the Partnership, (b) to manage the business, property and affairs of the
Partnership or (c) to contract for, or incur on behalf of, the Partnership any
debts, liabilities or other obligations.


     (a) The Partnership Governance Committee shall consist of nine
Representatives and each General Partner shall designate three Representatives
(each a "Representative"). All the Representatives of all three General Partners
shall together constitute the Partnership Governance Committee.

     (b) Each General Partner may designate one or more individuals (each an
"Alternate") who (i) shall be authorized, in the event a Representative is
absent from any meeting of the Partnership Governance Committee (and in the
order of succession designated by the General Partner so designating the
Alternates), to attend such meeting in the place of, and as substitute for, such
Representative and (ii) shall be vested with all the powers to take action on
behalf of such General Partner which the absent Representative could have
exercised at such meeting. The term "Representative," when used herein with
reference to any Representative who is absent from a meeting of the Partnership
Governance Committee, shall mean and refer to any Alternate attending such
meeting in place of such absent Representative.

     (c) On or before the date hereof, each General Partner shall have delivered
to the other General Partners a written notice (i) designating the three persons
to serve as such General




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<PAGE>


Partner's initial Representatives and (ii) designating the person or persons, if
any, who are to serve as initial Alternates and their order of succession.

     (d) Each General Partner may, in its sole discretion and by written notice
delivered to the other General Partners and the Partnership at any time or from
time to time, remove or replace one or more of its Representatives or change one
or more of its Alternates. If a Representative or Alternate dies, resigns or
becomes disabled or incapacitated, the General Partner that designated such
Representative or Alternate, as the case may be, shall promptly designate a
replacement. Each Representative and each Alternate shall serve until replaced
by the General Partner that designated such Representative or Alternate, as the
case may be.

     (e) Copies of all written notices designating Representatives and
Alternates shall be delivered to the Secretary and shall be placed in the
Partnership minute books, but the failure to deliver a copy of any such notice
to the Secretary shall not affect the validity or effectiveness of such notice
or the designation described therein.

     (f) Each Representative, in his capacity as such, shall be the agent of the
General Partner that designated such Representative. Accordingly, (i) each
Representative, as such, shall act (or refrain from acting) with respect to the
business, property and affairs of the Partnership solely in accordance with the
wishes of the General Partner that designated such Representative and (ii) no
Representative, as such, shall owe (or be deemed to owe) any duty (fiduciary or
otherwise) to the Partnership or to any General Partner other than the General
Partner that designated such Representative; provided, however, that nothing in
this Agreement is intended to or shall relieve or discharge any Representative
or General Partner from liability to the Partnership or the Partners on account
of any fraudulent or intentional misconduct of such Representative. Nothing in
this Section 6.4(f) shall limit the duty owed to the Partnership by any person
acting in his capacity as an officer of the Partnership (including any such
officer who is also a Representative).

     (g) Representatives shall not receive from the Partnership any compensation
for their service or any reimbursement of expenses for attendance at meetings of
the Partnership Governance Committee.


     (a) Regular meetings of the Partnership Governance Committee shall be held
at such times and at such places as shall from time to time be determined in
advance and committed to a written schedule by the Partnership Governance
Committee. The first regular meeting of the Partnership Governance Committee
during January of each fiscal year shall be deemed to be the "Annual Meeting."
The Secretary shall deliver by commercial courier service or other hand delivery
or transmit by facsimile transmission (with proof of confirmation from the
transmitting machine), an agenda for each regular meeting to the Representatives
at least five Business Days prior to such meeting. Each agenda for a regular
meeting shall specify, to a reasonable degree, the business to be transacted at
such meeting. Subject to Section 6.6, at any regular meeting of the Partnership
Governance Committee at which a quorum is present, any and all business of the
Partnership may be transacted.

     (b) Special meetings of the Partnership Governance Committee may be called
by any Representative by delivering by commercial courier service or other hand
delivery or




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<PAGE>


transmitting by facsimile transmission (with proof of confirmation from the
transmitting machine), written notice of a special meeting to each of the other
Representatives at least two Business Days before such meeting. Each notice of a
special meeting shall specify, to a reasonable degree, the business to be
transacted at, or the purpose of, such meeting. Notice of any special meeting
may be waived before or after the meeting by a written waiver of notice signed
by the Representative entitled to notice. A Representative's attendance at a
special meeting shall constitute a waiver of notice unless the Representative
states at the beginning of the meeting his objection to the transaction of
business because the meeting was not lawfully called or convened. Special
meetings of the Partnership Governance Committee shall be held at the
Partnership's offices (or at such other place or in such other manner as the
Representatives shall agree) at such time as may be stated in the notice of such
meeting.

     (c) One Representative of each General Partner shall serve as a co-chair of
each meeting (regular and special) of the Partnership Governance Committee. Any
co-chair may instruct the Secretary to include one or more items on a meeting
agenda and none of the co-chairs nor the Secretary may delete or exclude an
agenda item proposed by any other co-chair.

     (d) Following each meeting of the Partnership Governance Committee, the
Secretary shall promptly draft and distribute minutes of such meeting to the
Representatives for approval at the next meeting, and after such approval shall
retain the minutes in the Partnership minute books.

     (e) Representatives, at their discretion, may participate in or hold
regular or special meetings of the Partnership Governance Committee by means of
a telephone conference or any comparable device or technology by which all
individuals participating in the meeting may hear each other, and participation
in such a meeting shall constitute presence in person at such meeting.

     (f) Any action required or permitted to be taken at a meeting of the
Partnership Governance Committee may be taken without a meeting if a consent in
writing, setting forth the action so taken, shall be signed by at least two
Representatives of each General Partner, and such consent shall have the same
force and effect as a duly conducted vote of the Partnership Governance
Committee. A counterpart of each such consent to action shall be delivered
promptly to each of the Representatives and to the Secretary for placement in
the minute books of the Partnership, but the failure to deliver a counterpart of
any such consent to action to the Secretary shall not affect the validity or
effectiveness of such consent to action.


     (a) The presence of at least two Representatives (including any duly
present Alternates) of Lyondell GP shall constitute a quorum of the Partnership
Governance Committee for the transaction of business and the taking of
appropriate Partnership Governance Committee Actions at any meeting; provided,
however, that the presence at such meeting of at least two Representatives
(including any duly present Alternates) from each General Partner shall be
necessary for the taking of any action described in Section 6.7; and provided,
further, that no Partnership Governance Committee Actions can be taken at any
meeting with respect to any matter that was not reflected, with a reasonable
level of specificity, on an agenda for such meeting that was delivered in
accordance with Section 6.5 unless at least one Representative of




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<PAGE>


each General Partner is present. No Partnership Governance Committee Action may
be taken at any meeting at which a quorum is not present.

     (b) Except as otherwise provided in Section 6.7 or elsewhere in this
Agreement, the approval of two or more Representatives acting for Lyondell GP
will be sufficient for the Partnership Governance Committee to take any
Partnership Governance Committee Action and in such case the Partnership shall
be authorized to take such action without the consent of any other Person.

     Unless and until two or more Representatives of Lyondell GP, two or more
Representatives of Millennium GP and two or more Representatives of Occidental
GP have given their approval (in which event a Partnership Governance Committee
Action is hereby authorized without the need for the consent of any other
Person), no Partnership Governance Committee Action will be deemed for any
purpose to have been taken at any Partnership Governance Committee meeting that
would cause or permit the Partnership or any subsidiary thereof (or any Person
acting in the name or on behalf of any of them) directly or indirectly to take
(or commit to take), and neither the Partnership nor any subsidiary thereof nor
any person acting in the name or on behalf of any of them directly or indirectly
may take or commit to take, any of the actions described below in this
subsection (whether in a single transaction or series of related transactions):

               (i) to cause the Partnership, directly or indirectly, to engage,
        participate or invest in any business outside the scope of its business
        as described in Section 1.4;

               (ii) to approve any Strategic Plan, as well as any amendments or
        updates thereto (including the annual updates provided for in Section
        8.1);

               (iii) to authorize any disposition of assets having a fair market
        value exceeding $30 million in any one transaction or a series of
        related transactions not contemplated in an approved Strategic Plan;

               (iv) to authorize any acquisition of assets or any capital
        expenditure exceeding $30 million that is not contemplated in an
        approved Strategic Plan;

               (v) to require capital contributions to the Partnership (other
        than contributions contemplated by the Contribution Agreements or an
        approved Strategic Plan or to achieve or maintain compliance with any
        HSE Law) within any fiscal year if the total of such contributions
        required from the Partners within that year would exceed $100 million or
        the total of such contributions required from the Partners within that
        year and the immediately preceding four years would exceed $300 million;

               (vi) to authorize the incurrence of debt for borrowed money
        unless (x) such debt is contemplated by clause (vii) (b) below, (y)
        after giving effect to the incurrence of such debt (and any related
        transactions) and the maximum amount of borrowings permitted under
        clause (vii) below, the Partnership would be expected to have an
        "investment grade" debt rating by Moody's Investor Services Inc. and
        Standard & Poor's Corporation or (z) such debt is incurred to refinance
        the public, bank or other debt assumed or incurred by the Partnership as
        contemplated by the Initial Master Transaction Agreement or the Second
        Master Transaction Agreement or to refinance indebtedness under the 1998
        Credit Facility or to refinance any such debt, and in the case of each
        of (x), (y) and (z), the agreement relating to such debt does not
        provide that the Transfer by




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<PAGE>





        a Partner of its Units (or a change of control with respect to any
        Partner or any of its Affiliates) would constitute a default thereunder,
        otherwise accelerate the maturity thereof or give the lender or holder
        any "put rights" or similar rights with respect thereto; provided,
        however, that notwithstanding the foregoing, the provisions of Sections
        6.7(xxi) and 6.7(xxii), if applicable, must be satisfied with respect to
        any refinancing;

               (vii) (a) to enter into the 1998 Credit Facility or (b) to make
        borrowings under one or more of the Partnership's bank credit facility
        or facilities, its uncommitted lines of credit or any credit facility or
        debt instrument of the Partnership of any kind that refinances all or
        any portion of the Partnership's credit facility or facilities, at any
        time, if as a result of any such borrowing the aggregate principal
        amount of all such borrowings outstanding at such time would exceed the
        sum of $1.25 billion and the amount which becomes available for
        borrowing under the 1998 Credit Facility.

               (viii) to enter into interest rate protection or other hedging
        agreements (other than hydrocarbon hedging agreements in the ordinary
        course);

               (ix) to enter into any capitalized lease or similar off-balance
        sheet financing arrangements involving payments (individually or in the
        aggregate) by it in excess of $30 million in any fiscal year;

               (x) to cause the Partnership or any subsidiary of the Partnership
        to issue, sell, redeem or acquire any Units or other equity securities
        (or any rights to acquire, or any securities convertible into or
        exchangeable for, Units or other equity securities);

               (xi) to make Partnership cash distributions in excess of
        Available Net Operating Cash or to make non-cash distributions (except
        as contemplated by Section 12);

               (xii) to appoint or discharge Executive Officers (other than the
        CEO), based on the recommendation of the CEO;

               (xiii) to approve material compensation and benefit plans and
        policies, material employee policies and material collective bargaining
        agreements for the Partnership's employees;

               (xiv) to initiate or settle any litigation or governmental
        proceedings if the effect thereof would be material to the financial
        condition of the Partnership;

               (xv) to change the independent accountants for the Partnership;

               (xvi) to change the Partnership's method of accounting as adopted
        pursuant to Section 5.2 or to change the Partnership's method of
        accounting as provided in Section 5.5 or to make the elections referred
        to in Section 5.6(b)(i)(E);

               (xvii) to create or change the authority of any Auxiliary
        Committee;

               (xviii) to merge, consolidate or convert the Partnership or any
        subsidiary thereof with or into any other entity (other than a Wholly
        Owned Subsidiary of the Partnership);




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<PAGE>



               (xix) to file a petition in bankruptcy or seeking any
        reorganization, liquidation or similar relief on behalf of the
        Partnership or any subsidiary; or to consent to the filing of a petition
        in bankruptcy against the Partnership or any subsidiary; or to consent
        to the appointment of a receiver, custodian, liquidator or trustee for
        the Partnership or any subsidiary or for all or any substantial portion
        of their property;

               (xx) to exercise any power or right described in Section
        6.8(a)(i) or (ii) with respect to a Conflict Circumstance involving (a)
        LYONDELL-CITGO Refining Company Ltd., its successors or assigns, (b)
        Lyondell Methanol Company, L.P., its successors or assigns or (c) any
        other Affiliate of Lyondell GP, Millennium GP or Occidental GP if such
        Affiliate's actions with respect to such Conflict Circumstance are not
        controlled by Lyondell, Millennium or Occidental respectively, other
        than a Conflict Circumstance involving the exercise of any rights and
        remedies with respect to a default under any agreement that is the
        subject of such Conflict Circumstance;

               (xxi) (a) prior to the seventh anniversary of the Initial Closing
        Date, to repay any Millennium America Guaranteed Debt, other than
        through refinancing or (b) to refinance any Millennium America
        Guaranteed Debt prior to the seventh anniversary of the Initial Closing
        Date if any of the principal of the debt refinancing such Millennium
        America Guaranteed Debt would be due and payable after the seventh
        anniversary of the Initial Closing Date; provided, however, that if the
        Millennium America Guaranteed Debt continues to be guaranteed by
        Millennium America or its successors after the seventh anniversary of
        the Initial Closing Date, then the term of such debt shall not exceed
        365 days; and

               (xxii) (a) prior to 30 days after the seventh anniversary of the
        date of this Agreement, to repay any Oxy Guaranteed Debt, other than
        through refinancing or (b) to refinance any Oxy Guaranteed Debt prior to
        30 days after the seventh anniversary of the date of this Agreement if
        any of the principal of the debt refinancing such Oxy Guaranteed Debt
        would be due and payable after 30 days after the seventh anniversary of
        the date of this Agreement; provided, however, that if the Oxy
        Guaranteed Debt continues to be guaranteed by Occidental Chemical
        Corporation or its successors after 30 days after the seventh
        anniversary of the date of this Agreement, then the term of such debt
        shall not exceed 365 days.


     (a) Notwithstanding anything to the contrary contained in this Agreement,
with respect to any Conflict Circumstance (other than a Conflict Circumstance
described in Section 6.7(xx), which shall be governed by Section 6.7), the
Nonconflicted General Partners acting jointly (through their respective
Representatives) shall, subject to Section 6.8(b), have the sole and exclusive
power and right for and on behalf, and at the sole expense, of the Partnership
(i) to control all decisions, elections, notifications, actions, exercises or
nonexercises and waivers of all rights, privileges and remedies provided to, or
possessed by, the Partnership with respect to a Conflict Circumstance and (ii)
in the event of any potential, threatened or asserted claim, dispute or action
with respect to a Conflict Circumstance, to retain and direct legal counsel and
to control, assert, enforce, defend, litigate, mediate, arbitrate, settle,
compromise or waive any and all such claims, disputes and actions. Accordingly,
Partnership Governance Committee Action




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<PAGE>


with respect to a Conflict Circumstance (other than a Conflict Circumstance
described in Section 6.7(xx), which shall be governed by Section 6.7) shall
require the approval of two Representatives of each of the Nonconflicted General
Partners. Each General Partner shall, and shall cause its Affiliates to, take
all such actions, execute all such documents and enter into all such agreements
as may be necessary or appropriate to facilitate or further assure the
accomplishment of this Section.

     (b) Each Nonconflicted General Partner, in exercising its control, power
and rights pursuant to this Section, shall act in good faith and in a manner it
believes to be in the best interests of the Partnership; provided that it shall
never be deemed to be in the best interests of the Partnership not to pay,
perform and observe all of the obligations to be paid, performed or observed by
or on the part of the Partnership under the terms of any of the Other Agreements
(as defined in the Amended and Restated Parent Agreement). Each Nonconflicted
General Partner shall act through its Representatives, and the approval of two
Representatives acting for each of the Nonconflicted General Partners will be
sufficient for the Nonconflicted General Partners (and therefore the Partnership
Governance Committee on behalf of the Partnership) to take any action in respect
of the relevant Conflict Circumstance. The Conflicted General Partner (or its
Affiliates) shall have the right to deal with the Partnership and with each
Nonconflicted General Partner on an arm's-length basis and in a manner it
believes to be in its own best interests, but in any event must deal with them
in good faith.


     (a) From time to time, the Partnership Governance Committee may, by
Partnership Governance Committee Action, designate one or more committees
("Auxiliary Committees") or disband any Auxiliary Committee. Each Auxiliary
Committee shall (i) operate under the specific authority delegated to it by the
Partnership Governance Committee (consistent with Section 6.7) for the purpose
of assisting the Partnership Governance Committee in managing (on behalf of the
General Partners) the business, property and affairs of the Partnership and (ii)
report to the Partnership Governance Committee.

     (b) Each General Partner shall have the right to appoint an equal number of
members on each Auxiliary Committee. Auxiliary Committee members may (but need
not) be members of the Partnership Governance Committee. No Auxiliary Committee
member shall be compensated or reimbursed by the Partnership for service as a
member of such Auxiliary Committee.

     (c) Each Partnership Governance Committee Action designating an Auxiliary
Committee shall be in writing and shall set forth (i) the name of such Auxiliary
Committee, (ii) the number of members and (iii) in such detail as the
Partnership Governance Committee deems appropriate, the purposes, powers and
authorities (consistent with Section 6.7) of such Auxiliary Committee; provided,
however, that in no event shall any Auxiliary Committee have any powers or
authority in reference to amending this Agreement, adopting an agreement of
merger, consolidation or conversion of the Partnership, authorizing the sale,
lease or exchange of all or substantially all of the property and assets of the
Partnership, authorizing a dissolution of the Partnership or declaring a
distribution. Each Auxiliary Committee shall keep regular minutes of its
meetings and promptly deliver the same to the Partnership Governance Committee.





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<PAGE>


     No Representative or Alternate of a Partner who, as an officer, director or
employee of such Partner or any of its Affiliates, participates in material
operational decisions by such Partner or Affiliate regarding a business or
operation of such Partner or Affiliate that competes with a business or
operation of the Partnership or of the other Partner or its Affiliates, or that
competes with a Business Opportunity offered pursuant to Section 9.3(c) or (d),
shall receive or have access to any competitively sensitive information
regarding the competing business of the Partnership or of the other Partner or
its Affiliates or such Business Opportunity, nor shall such Representative or
Affiliate participate in any decision of the Partnership Governance Committee
relating to such business or operation of the Partnership or the other Partner
or its Affiliates or such Business Opportunity.


     (a) The Partnership Governance Committee may select natural persons who are
(or upon becoming an officer will be) agents or employees of the Partnership to
be designated as officers of the Partnership, with such titles as the
Partnership Governance Committee shall determine.

     (b) The executive officers of the Partnership shall consist of a Chief
Executive Officer ("CEO"), and others as determined from time to time by
Partnership Governance Committee (collectively, the "Executive Officers").

     (c) The Partnership Governance Committee also shall appoint a Secretary and
may appoint such other officers and assistant officers and agents as may be
deemed necessary or desirable and such persons shall perform such duties in the
management of the Partnership as may be provided in this Agreement or as may be
determined by Partnership Governance Committee Action.

     (d) The Partnership Governance Committee may leave unfilled any offices
except those of CEO and Secretary. Two or more offices may be held by the same
person except that the same person may not hold the offices of CEO and
Secretary.


     (a) The  Executive Officers as of the  date of this Agreement are listed
on Appendix C.

     (b) The CEO shall hold office for a five-year term, subject to the CEO's
earlier death, resignation or removal. Upon the expiration of such term or
earlier vacancy, Lyondell GP shall designate the CEO, provided that such person
shall be reasonably acceptable to both of Millennium GP and Occidental GP. The
CEO shall not be required to be an employee of the Partnership.

     (c) Each Executive Officer (other than the CEO) shall hold office until his
or her death, resignation or removal. Upon the death, resignation or removal of
an Executive Officer, or the creation of a new Executive Officer position, the
CEO may nominate a person to fill the vacancy, which shall be subject to
Partnership Governance Committee approval. Executive




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<PAGE>



Officers shall not be required to be employees of the Partnership. Any Executive
Officer also may serve as an officer or employee of any Partner or Affiliate of
a Partner.


     (a) The CEO may be removed, at any time, by Partnership Governance
Committee Action taken pursuant to Section 6.6, with or without cause, whenever
in the judgment of the Partnership Governance Committee the best interests of
the Partnership would be served thereby.

     (b) Any Executive Officer (other than the CEO), or any other officer or
agent may be removed, at any time, by Partnership Governance Committee Action
taken pursuant to Section 6.7(xii), with or without cause, upon the
recommendation of the CEO, whenever in the judgment of the Partnership
Governance Committee the best interests of the Partnership would be served
thereby.

     (c) Notwithstanding anything to the contrary in Sections 6.7(xii), 7.3(a)
and 7.3(b), any General Partner may, by action of two or more of its
Representatives, remove from office any Executive Officer who takes or causes
the Partnership to take any action described in Section 6.7 that has not been
approved by two or more Representatives of Lyondell GP, two or more
Representatives of Millennium GP and two or more Representatives of Occidental
GP as contemplated by Section 6.7. Any such removal shall be effected by
delivery by such Representatives of written notice of such removal (i) to such
Executive Officer and (ii) to the Representatives of the other General Partners;
provided that such removal shall not be effective if such action is rescinded or
cured (to the reasonable satisfaction of the General Partner who has delivered
such notice) promptly after such notice is delivered.


     (a) Each officer or employee of the Partnership shall owe to the
Partnership, but not to any Partner, all such duties (fiduciary or otherwise) as
are imposed upon such an officer or employee of a Delaware corporation. Without
limitation of the foregoing, each officer and employee in any dealings with a
Partner shall have a duty to act in good faith and to deal fairly; provided,
that, no officer shall be liable to the Partnership or to any Partner for his or
her good faith reliance on the provisions of this Agreement. Notwithstanding the
foregoing, it is understood that any officer or employee of the Partnership who
is also a Representative of a General Partner shall, in his capacity as a
Representative, owe no duty (fiduciary or otherwise) to any Person other than
such General Partner.

     (b) The policies and procedures of the Partnership adopted by the
Partnership Governance Committee may set forth the powers and duties of the
officers of the Partnership to the extent not set forth in or inconsistent with
this Agreement. The officers of the Partnership shall have such powers and
duties, except as modified by the Partnership Governance Committee, as generally
pertain to their respective offices in the case of a publicly held Delaware
corporation, as well as other such powers and duties as from time to time may be
conferred by the Partnership Governance Committee and by this Agreement. The CEO
and the other officers and employees of the Partnership shall develop and
implement management and other policies and procedures consistent with this
Agreement and the general policies and procedures established by the Partnership
Governance Committee.




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     (c) Notwithstanding any other provision of this Agreement, no Partner,
Representative, officer, employee or agent of the Partnership shall have the
power or authority, without specific authorization from the Partnership
Governance Committee, to undertake any of the following:

               (i)    to do any act which contravenes (or otherwise is
                      inconsistent with) this Agreement or which would make it
                      impracticable or impossible to carry on the Partnership's
                      business;

               (ii)   to confess a judgment against the Partnership;

               (iii)  to possess Partnership property other than in the ordinary
                      conduct of the Partnership's business; or

               (iv)   to take, or cause to be taken, any of the actions
                      described in Section 6.7.

    Subject to the terms of this Agreement, the CEO shall have general authority
and discretion comparable to that of a chief executive officer of a publicly
held Delaware corporation of similar size to direct and control the business and
affairs of the Partnership, including without limitation its day-to-day
operations in a manner consistent with the Annual Budget and the most recently
approved Strategic Plan. The CEO shall take steps to implement all orders and
resolutions of the Partnership Governance Committee or, as applicable, any
Auxiliary Committee. The CEO shall be authorized to execute and deliver, in the
name and on behalf of the Partnership, (i) contracts or other instru-ments
authorized by Partnership Governance Committee Action and (ii) contracts or
instruments in the usual and regular course of business (not otherwise requiring
Partnership Governance Committee Action), except in cases when the execution and
delivery thereof shall be expressly delegated by the Partnership Governance
Committee to some other officer or agent of the Partnership, and, in general,
shall perform all duties incident to the office of CEO as well as such other
duties as from time to time may be assigned to him or her by the Partnership
Governance Committee or as are prescribed by this Agreement.

     The President (if any) and the Vice Presidents shall perform such duties as
may, from time to time, be assigned to them by the Partnership Governance
Committee or by the CEO. In addition, at the request of the CEO, or in the
absence or disability of the CEO, the President (if any) or any Vice President,
in any order determined by the Partnership Governance Committee, temporarily
shall perform all (or if limited through the scope of the delegation, some of)
the duties of the CEO, and, when so acting, shall have all the powers of, and be
subject to all restrictions upon, the CEO.

     The Secretary shall keep the minutes of all meetings (and copies of written
records of action taken without a meeting) of the Partnership Governance
Committee in minute books provided for such purpose and shall see that all
notices are duly given in accordance with the provisions of this Agreement. The
Secretary shall be the custodian of the records and of the seal, if any. The
Secretary shall have general charge of books and papers of the Partnership as
the Partnership Governance Committee may direct and, in general, shall perform
all duties and exercise all powers incident to the office of Secretary and such
other duties and powers as the Partnership Governance Committee or the CEO from
time to time may assign to or confer upon the Secretary.




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<PAGE>



     Salaries or other compensation of the other Executive Officers of the
Partnership shall be established by the CEO consistent with plans approved by
the Partnership Governance Committee. Except as approved by the Partnership
Governance Committee, all fees and compensation of the officers and employees of
the Partnership other than the CEO with respect to their services as such
officers and employees shall be payable solely by the Partnership and no Partner
or its Affiliates shall pay (or offer to pay) any such fees or compensation to
any officer or employee, except to the extent that the Partnership shall have
agreed with a Partner or one of its Affiliates pursuant to a separate agreement
that a portion of the compensation of such officer or employee shall be paid by
such Partner or Affiliate.

     The Partnership Governance Committee may delegate temporarily the powers
and duties of any officer of the Partnership, in case of absence or for any
other reason, to any other officer of the Partnership, and may authorize the
delegation by any officer of the Partnership of any of such officer's powers and
duties to any other officer or employee of the Partnership, subject to the
general super-vision of such officer.

     Without the prior approval of the two other General Partners, which
approval shall not be unreasonably withheld, a General Partner (or its
Affiliates) shall not be entitled to hire employees of the Partnership who at
the time of such employment are eligible to participate in the incentive
compensation programs available to senior managers or executives or to hire
specific individuals who had been employed by the Partnership within the
previous year and who prior to the termination of their employment were eligible
to participate in the incentive compensation programs available to senior
managers or executives. Without the prior approval of the relevant General
Partner, which approval shall not be unreasonably withheld, the Partnership
shall not be entitled to hire employees of such General Partner (or its
Affiliates) who at the time of such employment are eligible to participate in
the incentive compensation programs available to senior managers or executives
or to hire specific individuals who had been employed by such General Partner
(or its Affiliates) within the previous year and who prior to the termination of
their employment were eligible to participate in the incentive compensation
programs available to senior managers or executives.

     Persons dealing with the Partnership are entitled to rely conclusively on
the power and authority of each of the officers as set forth in this Agreement.
In no event shall any Person dealing with any officer with respect to any
business or property of the Partnership be obligated to ascertain that the terms
of this Agreement have been complied with, or be obligated to inquire into the
necessity or expedience of any act or action of the officer; and every contract,
agreement, deed, mortgage, security agreement, promissory note or other
instrument or document executed by the officer with respect to any business or
property of the Partnership shall be conclusive evidence in favor of any and
every Person relying thereon or claiming thereunder that (i) at the time of the
execution and/or delivery thereof, this Agreement was in full force and effect,
(ii) the instrument or document was duly executed in accordance with the terms
and provisions of this Agreement and is binding upon the Partnership, and (iii)
the officer was duly authorized and empowered to execute and deliver any and
every such instrument or document for and on behalf of the Partnership.




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<PAGE>


     (a) The Partnership shall be managed in accordance with a five-year
strategic business plan (the "Strategic Plan") which shall be updated annually
under the direction of the CEO and presented for approval by the Partnership
Governance Committee pursuant to Section 6.7 no later than 90 days prior to the
start of the first fiscal year covered by the updated plan.

     (b) The Strategic Plan shall establish the strategic direction of the
Partnership, including plans relating to capital maintenance and enhancement,
geographic expansion, acquisitions and dispositions, new product lines,
technology, long-term supply and customer arrangements, internal and external
financing, environmental and legal compliance, and plans, programs and policies
relating to compensation and industrial relations. The Strategic Plan shall
include projected income statements, balance sheets and cash flow statements,
including the expected timing and amounts of capital contributions and cash
distributions. The format and level of detail of each Strategic Plan shall be
consistent with that of the initial Strategic Plan agreed to by the Initial
Partners on or prior to the Initial Closing Date or the Strategic Plan most
recently approved pursuant to Section 6.7.


     (a) The Executive Officers of the Partnership shall prepare an Annual
Budget (each, an "Annual Budget") for each fiscal year, including an Operating
Budget and Capital Expenditure Budget; provided that each Annual Budget shall be
consistent with the information for such fiscal year included in the Strategic
Plan most recently approved pursuant to Section 6.7; and provided, further, that
unless provided otherwise in the most recently approved Strategic Plan, the
Annual Budget (including any Annual Budget prepared under Section 8.2(b)) shall
utilize a format and provide a level of detail consistent with the Partnership's
initial Annual Budget. The Annual Budget for each year shall be submitted to the
Partnership Governance Committee for approval at least 60 days prior to the
start of the fiscal year covered by such budget. Each Annual Budget shall
incorporate (i) a projected income statement, balance sheet and a cash flow
statement, (ii) the amount of any corresponding cash deficiency or surplus and
(iii) the estimated amount, if any, and expected timing for all required capital
contributions. Each proposed Annual Budget shall be prepared on a basis
consistent with the Partnership's financial statements.

     (b) If for any fiscal year the Partnership Governance Committee has failed
to approve an updated Strategic Plan, then, subject to Section 8.5, for such
year and each subsequent year prior to approval of an updated Strategic Plan,
the Executive Officers of the Partnership shall prepare (and promptly furnish to
the Partnership Governance Committee) the Annual Budget consistent with the
projections and other information for that year included in the Strategic Plan
most recently approved pursuant to Section 6.7; provided, however, that the CEO,
acting in good faith, shall be entitled to modify any such Annual Budget in
order to satisfy current contractual and compliance obligations and to account
for other changes in circumstances resulting from the passage of time or the
occurrence of events beyond the control of the Partnership; provided, further,
that the CEO shall not be authorized to cause the Partnership to proceed with
capital expenditures to accomplish capital enhancement projects except to the
extent that such expenditures would enable the Partnership to continue or
complete any such capital project reflected in the last Strategic Plan that was
approved by the Partnership Governance Committee pursuant to Section 6.7.




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<PAGE>



     (c) Each "Operating Budget" shall constitute an estimate for each
applicable period of all operating income, which shall include expenses required
to maintain, repair and restore to good and usable condition the Partnership's
assets.

     (d) Each "Capital Expenditure Budget" shall constitute an estimate for the
applicable period of the capital expenditures required to (i) accomplish capital
enhancement projects included in the most recently approved Strategic Plan, (ii)
maintain and preserve the Partnership's assets in good operating condition and
repair and (iii) achieve or maintain compliance with any HSE Law.

     All Partnership expenses (both operating and capital expenses), regardless
of whether included in any Strategic Plan or Annual Budget, shall be funded from
operating cash flows or authorized borrowings under available lines of credit,
unless otherwise agreed by the Partnership Governance Committee. Subject to the
limitations of Sections 2.4 and 6.7(v), if applicable, to the extent that the
CEO determines at any time that funds are needed to fund Partnership operations,
the CEO may issue a Funding Notice to the Limited Partners calling for an
additional capital contribution. The Limited Partners will take all steps
necessary to cause compliance with such Funding Notice.


     (a) After a Strategic Plan and an Annual Budget have been approved by the
Partnership Governance Committee (or an Annual Budget has been developed in
accordance with Section 8.2(b)), the CEO will be authorized, without further
action by the Partnership Governance Committee, to cause the Partnership to make
expenditures consistent with such Strategic Plan and Annual Budget; provided,
however, that all internal control policies and procedures, including those
regarding the required authority for certain expenditures, shall have been
followed.

     (b) In any emergency, the CEO or the CEO's designee shall be authorized to
take such actions and to make such expenditures as may be reasonably necessary
to react to the emergency, regardless of whether such expenditures have been
included in an approved Strategic Plan or Annual Budget. Promptly after learning
of an emergency, the CEO or such designee shall notify the Representatives of
the nature of the emergency and the response that has been made, or is committed
or proposed to be made, with respect to the emergency.

     If the Partnership Governance Committee has not agreed upon and approved an
updated Strategic Plan, as contemplated by Sections 6.7 and 8.1, by such date as
is 12 months after the beginning of the first fiscal year that would have been
covered by such plan, then the General Partners shall submit their disagreements
to non-binding mediation by a Neutral. If the General Partners are unable to
agree upon a mutually acceptable Neutral within 30 days after a nomination of a
Neutral is made by one General Partner to the other General Partners, then such
Neutral shall upon the application of any General Partner be appointed within 70
days of such nomination by the Center for Public Resources, or if such
appointment is not so made promptly then promptly thereafter by the American
Arbitration Association in Philadelphia, Pennsylvania, or if such appointment is
not so made promptly then promptly thereafter by the senior United States
District Court judge sitting in Wilmington, Delaware. The fees of the Neutral
shall be paid equally by the General Partners. Within 20 days of selection of
the Neutral, two persons having decision-making authority on behalf of each
General Partner shall meet with the Neutral




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<PAGE>


and agree upon procedures and a schedule for attempting to resolve the
differences between the General Partners. They shall continue to meet thereafter
on a regular basis until (i) agreement is reached by the General Partners
(acting through their Representatives) on an updated Strategic Plan or (ii) at
least 24 months have elapsed since the beginning of the first fiscal year that
was to be covered by the first updated plan for which agreement was not reached
and one General Partner shall determine and notify the other General Partners
and the Neutral in writing (a "Deadlock Notice") that no agreement resolving the
dispute is likely to be reached.


     (a) 1998 Credit Facility. Each General Partner agrees that it will use its
reasonable best efforts to cause the Partnership to enter into a credit facility
or facilities (whether one or more, the "1998 Credit Facility") on or prior to
December 15, 1998, which 1998 Credit Facility would allow the Partnership to
borrow at least $500 million aggregate principal amount (inclusive of the Bank
Credit Agreement Repayment Amount but exclusive of any other portion of the 1998
Credit Facility which may be dedicated to the satisfaction of working capital
needs or used for refinancing any indebtedness of the Partnership existing at
such time) thereunder, notwithstanding the amount ($1.25 billion) that may be
borrowed by the Partnership under its bank credit facility in existence as of
the date of this Agreement. Each General Partner further agrees to cause the
Partnership to draw down the Bank Credit Agreement Repayment Amount under the
1998 Credit Facility and to apply the Bank Credit Agreement Repayment Amount to
the repayment of any principal amount outstanding under the Bank Credit
Agreement on or prior to December 15, 1998, and two Business Days after such
repayment to cause the Partnership to draw down $419,700,000 under the Bank
Credit Agreement for distribution to Occidental LP2 as provided in Section
3.1(g).

     (b) Other Loans. The Partnership Governance Committee may by Partnership
Governance Committee Action authorize the CEO to cause the Partnership to borrow
funds from third party lenders. No Partner shall be required, and the
Partnership Governance Committee shall not be authorized to require any Partner,
to guarantee or to provide other credit or financial support for any loan. Any
Partner may, at its sole discretion, guarantee or provide other credit or
financial support for all or any portion of any debt, including any refinancing
of the Bank Credit Agreement or any uncommitted lines of credit of the
Partnership, for such period of time and on such other terms as the Partner
shall determine.

     (c) Millennium Guarantee. Millennium America, an Affiliate of Millennium GP
and Millennium LP, issued a full and unconditional guarantee (the "Millennium
America Guarantee") in respect of $750 million of principal owed by the
Partnership pursuant to the Bank Credit Agreement, together with interest
thereon, as set forth in the Bank Credit Agreement. Millennium America (or its
successors or assigns) shall maintain the Millennium America Guarantee in full
force and effect in respect of $750 million of principal, together with interest
thereon, under the Bank Credit Agreement or any refinancings thereof (including,
without limitation, any further refinancings of such refinancings) indefinitely;
provided, however, that Millennium America may terminate the Millennium America
Guarantee at any time on or after the seventh anniversary of the Initial Closing
Date if, and only if: (i) the Partnership's ratio of Total Indebtedness to Total
Capitalization is, as of the end of the most recently completed fiscal quarter
of the Partnership lower than such ratio as of December 31, 1998, (ii) the
Partnership's ratio of EBITDA to Net Interest for the most recent 12 month
period is at least 105% of such ratio for the 12 month period ending December
31, 1998, (iii) the Partnership is not then in default in the payment of
principal of, or interest on, any indebtedness for borrowed money in




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<PAGE>


excess of $15 million and (iv) the Partnership is not then in default in respect
of any covenants relating to any indebtedness for borrowed money if the effect
of any such default shall be to accelerate, or to permit the holder or obligee
of such indebtedness (or any trustee on behalf of such holder or obligee) to
accelerate (with or without the giving of notice or lapse of time or both), such
indebtedness in an aggregate amount in excess of $50 million; provided, further,
that if Millennium GP and Millennium LP sell all of their respective interests
in the Partnership, or if Millennium Petrochemicals Inc. sells all of its equity
interests in both Millennium GP and Millennium LP, in each case to an
unaffiliated third party (or parties) at any time in accordance with the terms
of this Agreement, Millennium America may terminate the Millennium America
Guarantee if, at the time of such sale or at the time of such termination, (A)
the Partnership has an "investment grade" credit rating issued by Moody's
Investor Service Inc. or Standard & Poor's Corporation (or, if the Partnership
has no rated indebtedness outstanding at such time, Millennium America
demonstrates to the reasonable satisfaction of the Partnership that the
Partnership could obtain such an "investment grade" credit rating), or (B) the
fair market value of the Partnership's assets is at least 140% of the gross
amount of its liabilities. For purposes of this paragraph (c), "EBITDA" means,
with respect to any period, operating income before interest, taxes,
depreciation and amortization, as determined in accordance with GAAP; "Net
Interest" means, with respect to any period, (i) the amount which, in conformity
with GAAP, would be set forth opposite the caption "interest expense" (or any
like caption) on a consolidated income statement of the Partnership and all
other Persons with which the Partnership's financial statements are to be
consolidated in accordance with GAAP for the relevant period ended on such date
less (ii) the amount which, in conformity with GAAP, would be set forth opposite
the caption "interest income" (or any like caption) on such consolidated income
statement; "Total Indebtedness" means at the time of determination all
indebtedness of the Partnership and its subsidiaries on a consolidated basis, as
determined in accordance with GAAP; "Total Capitalization" means, at the time of
determination, the sum of Total Indebtedness plus the partner's equity reflected
on a balance sheet of the Partnership prepared in accordance with GAAP.


     (a) The Partners acknowledge that the General Partners (acting through the
Partnership Governance Committee) are permitted to delegate responsibility for
day-to-day operations of the Partnership to officers and employees of the
Partnership.

     (b) Upon receipt of any required approval by the Partnership Governance
Committee (including, as applicable, any approval required by Section 6.8), all
contracts and transactions between the Partnership and a Partner or its
Affiliates shall be deemed to be entered into on an arm's-length basis and to be
subject to ordinary contract and commercial law, without any other duties or
rights being implied by reason of a Partner being a Partner or by reason of any
provision of this Agreement or the existence of the Partnership.

     Persons dealing with the Partnership are entitled to rely conclusively on
the power and authority of each of the General Partners as set forth in this
Agreement. In no event shall any Person dealing with any General Partner or such
General Partner's representatives with respect to any business or property of
the Partnership be obligated to ascertain that the terms of this




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<PAGE>


Agreement have been complied with, or be obligated to inquire into the necessity
or expedience of any act or action of the General Partner or the General
Partner's representatives; and every contract, agreement, deed, mortgage,
security agreement, promissory note or other instrument or document executed by
the General Partner or the General Partner's representatives with respect to any
business or property of the Partnership shall be conclusive evidence in favor of
any and every Person relying thereon or claiming thereunder that (i) at the time
of the execution and/or delivery thereof, this Agreement was in full force and
effect, (ii) the instrument or document was duly executed in accordance with the
terms and provisions of this Agreement and is binding upon the Partnership, and
(iii) the General Partner or the General Partner's representative was duly
authorized and empowered to execute and deliver any and every such instrument or
document for and on behalf of the Partnership. Nothing in this Section 9.2 shall
be deemed to be a waiver or release of any General Partner's obligations to the
other Partners as set forth elsewhere in this Agreement.

; Right of First Opportunity.

     (a) Each Partner (directly or through its Affiliates) is a sophisticated
party possessing extensive knowledge of and experience relating to, and is
actively engaged in, significant businesses in addition to its Contributed
Businesses, has been represented by legal counsel, is capable of evaluating and
has thoroughly considered the merits, risks and consequences of the provisions
of this Section 9.3 and is agreeing to such provision knowingly and advisedly.
The liability of each of the General Partners (including any liability of its
Affiliates or its and their respective officers, directors, agents and
employees) or of any Limited Partner (including any liability of its Affiliates
or its and their respective officers, agents, directors and employees), either
to the Partnership or to any other Partner, for any act or omission by such
Partner in its capacity as a partner of the Partnership that is imposed by such
Partner's status as a "general partner" or "limited partner" (as such terms are
used in the Act) of a limited partnership is hereby eliminated, waived and
limited to the fullest extent permitted by law; provided, however, that each
General Partner shall at all times owe to the other General Partners a fiduciary
duty in observing the requirement described in Section 6.7 that two or more
Representatives of Lyondell GP, two or more Representatives of Millennium GP and
two or more Representatives of Occidental GP shall be required to give their
approval before the Partnership may undertake any of the actions listed in
Section 6.7. Nothing in this subsection shall relieve any Partner from liability
for any breach of this Agreement and each General Partner shall at all times owe
to the other General Partners a duty to act in good faith with respect to all
matters involving the Partnership.

     (b) Except as set forth in Section 9.3(c), each Partner's Affiliates shall
be free to engage in or possess an interest in any other business of any type,
including any business in direct competition with the Partnership, and to avail
itself of any business opportunity available to it without having to offer the
Partnership or any Partner the opportunity to participate in such business.
Except as set forth in Section 9.3(c), it is expressly agreed that the legal
doctrine of "corporate or business opportunities" sometimes applied to a Person
deemed to be subject to fiduciary or other similar duties so as to prevent such
Persons from engaging in or enjoying the benefits of certain additional business
opportunities shall not be applied in the case of any investment, acquisition,
business, activity or operation of any Partner's Affiliates.

        (c) (i) If a Partner's Affiliate desires to initiate or pursue an
        opportunity to undertake, engage in, acquire or invest in a Related
        Business by investing in or acquiring




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<PAGE>


        a Person whose business is a Related Business, acquiring assets of a
        Related Business, or otherwise engaging in or undertaking a Related
        Business (a "Business Opportunity"), such Partner or its Affiliate
        (such Partner, together with its Affiliates, being called the
        "Proposing Partner") shall offer the Partnership the Business
         Opportunity on the terms set forth in Section 9.3(c)(ii).

               (ii) When a Proposing Partner offers a Business Opportunity to
        the Partnership, the Partnership shall elect to do one of the following
        within a reasonably prompt period:

        (A)  acquire or undertake the Business Opportunity for the benefit of
             the Partnership as a whole, at the cost, expense and benefit of the
             Partnership; provided, however, that, if the Partnership ceases to
             actively pursue such opportunity for any reason, then the Proposing
             Partner will be entitled to proceed under clause (B) below; or

        (B)  permit the Proposing Partner to acquire or undertake the Business
             Opportunity for its own benefit and account without any duty to the
             Partnership or the other Partners with respect thereto; provided,
             however, that if the Business Opportunity is in direct competition
             with the then existing business of the Partnership (a "Competing
             Opportunity"), then the Proposing Partner and the Partnership
             shall, if either so elects, seek to negotiate and implement an
             arrangement whereby the Partnership would either (i) acquire or
             undertake the Competing Opportunity at the sole cost, expense and
             benefit of the Proposing Partner under a mutually acceptable
             arrangement whereby the Competing Opportunity is treated as a
             separate business within the Partnership with the costs, expenses
             and benefits related thereto being borne and enjoyed solely by the
             Proposing Partner, or (ii) enter into a management agreement with
             the Proposing Partner to manage the Competing Opportunity on behalf
             of the Proposing Partner on terms and conditions mutually
             acceptable to the Proposing Partner and the Partnership. If the
             Partnership and the Proposing Partner do not reach agreement as to
             such arrangement, the Proposing Partner may acquire or undertake
             the Competing Opportunity for its own benefit and account without
             any duty to the Partnership or the other Partners with respect
             thereto.

     (d) Notwithstanding the provisions of Section 9.3(c)(ii), (i) if the
Business Opportunity constitutes less than 25% (based on annual revenues for the
most recently completed fiscal year) of an acquisition of or investment in
assets, activities, operations or businesses that is not otherwise a Related
Business, then a Proposing Partner may acquire or invest in such Business
Opportunity without first offering it to the Partnership; provided, that, after
completion of the acquisition or investment thereof, such Proposing Partner must
offer the Business Opportunity to the Partnership pursuant to the terms of
Section 9.3(c)(ii); and if the Partnership elects option (A) of Section
9.3(c)(ii) with respect thereto, the Business Opportunity shall be acquired by
the Partnership at its fair market value as of the date of such acquisition and
(ii) if the Business Opportunity is (A) part of an integrated project, a
substantial element of which is the development, exploration, production and/or
sale of oil or gas reserves and (B) located in a country other than the United
States, Canada or Mexico then such Partner or its




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<PAGE>



Affiliate may acquire or invest in such Business Opportunity without first
offering it to the Partnership; provided, that subject to any requisite consents
and approvals from third parties or governmental authorities, the Partner or its
Affiliate will use commercially reasonable efforts to include the Partnership to
the maximum extent practicable in such integrated project with respect to the
Business Opportunity portion of the project.

     (e) Notwithstanding the provisions of Section 9.3(c), any direct or
indirect expansion by LYONDELL-CITGO Refining Company Ltd. of its aromatics
business shall not be deemed to constitute a Business Opportunity for purposes
of Section 9.3(c).

     (f) If (i) the Partnership is presented with an opportunity to acquire or
undertake a Business Opportunity (other than pursuant to Section 9.3(c)) that it
determines not to acquire or undertake and (ii) the Representatives of one or
two General Partners, but not the other General Partner(s), desire that the
Partnership acquire or undertake such Business Opportunity, then the Partnership
shall permit such General Partner(s) and its or their respective Affiliates to
acquire or undertake such Business Opportunity (or in the event two of the
General Partners desire to so undertake, then, as between those two General
Partners and their respective Affiliates, the Business Opportunity may be
pursued or acquired either jointly or independently and Section 9.3(c)(ii)(B)
shall be deemed to be applicable thereto to the same extent as if such General
Partner(s) and its or their respective Affiliates were a Proposing Partner with
respect to such Business Opportunity.


     (a) No Limited Partner shall take part in the management or control of the
Partnership's business, transact any business in the Partnership's name or have
the power to sign documents for or otherwise to bind the Partnership.

     (b) Each Limited Partner shall have the rights with respect to the
Partnership's books and records as set forth in Section 5.3.

     Each Partner covenants and agrees with the Partnership and with the other
Partners as follows:

               (i) It shall not exercise, or purport or attempt to exercise, its
        authority to withdraw, retire, resign, or assert that it has been
        expelled from the Partnership;

               (ii) It shall not do any act that would make it impossible or
        impracticable to carry on the Partnership's business; and

               (iii) It shall not act or purport or attempt to act in a manner
        inconsistent with any act of a General Partner acting pursuant to the
        Partnership Governance Committee or in a manner contrary to the
        agreements of the Partners set forth in this Agreement;

provided, that, nothing in this Section 9.5 shall be deemed to waive its rights
under Sections 10, 11 or 12.

  Each Partner covenants and agrees that (i) its business shall be restricted
solely to the holding of its Units and the doing of things necessary or
incidental in connection therewith (including, without limitation, the exercise
of its rights and powers under this Agreement), and (ii) it shall not own any
assets, incur any liabilities or engage, participate or invest in any business
outside




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the scope of such business; provided, however, that this Section 9.6 shall not
be binding upon (a) Millennium Petrochemicals Inc., a Virginia corporation, or
its successors by operation of law to the extent that any Units shall be
Transferred to it in accordance with Section 10.6 or (b) at its option, any
Wholly Owned Affiliate of any Partner to whom Units shall be Transferred
pursuant to Section 10.6 if, at the date of such Transfer, such Wholly Owned
Affiliate shall have a consolidated net worth, as determined in accordance with
GAAP, of at least $50 million. Notwithstanding the foregoing provisions of this
Section 9.6, this Section 9.6 shall not prohibit any Partner from incurring debt
payable to its Parent or an Affiliate so long such debt is permitted under
Section 2.4 of the Parent Agreement.


     Except pursuant to Section 11 or the procedures described below in this
Section, a Partner shall not, in any transaction or series of transactions,
directly or indirectly Transfer all or any part of its Units. A Partner shall
not, in any transaction or series of transactions, directly or indirectly Pledge
all or any part of its Units or its interest in the Partnership. Neither the
term "Transfer" nor the term "Pledge," however, shall include an assignment by a
Partner of such Partner's right to receive distributions from the Partnership so
long as such assignment does not purport to assign any right of such Partner to
participate in or manage the affairs of the Partnership, to receive any
information or accounting of the affairs of the Partnership, or to inspect the
books or records of the Partnership or any other right of a Partner pursuant to
this Agreement or the Act. Any attempt by a Partner to Transfer or Pledge all or
a portion of its Units in violation of this Agreement shall be void ab initio
and shall not be effective to Transfer or Pledge such Units or any portion
thereof. Subject to any applicable restrictions imposed by the Amended and
Restated Parent Agreement, nothing in this Agreement shall prevent the Transfer
or Pledge by the owner thereof of any capital stock, equity ownership interests
or other security of a Partner or any Affiliate of a Partner.


     (a) Except as set forth in Section 10.6, without the consent of all of the
General Partners, no Partner may Transfer less than all of its Units and no
Partner may Transfer its Units for consideration other than cash. Any Limited
Partner (or Limited Partners, if there are Affiliated Limited Partners) and its
(or their) Affiliated General Partner desiring to Transfer all of their Units
(together, the "Selling Partners") shall give written notice (the "Initial
Notice") to the Partnership and the other Partners (the "Offeree Partners")
stating that the Selling Partners desire to Transfer their Units and stating the
cash purchase price and all other terms on which they are willing to sell (the
"Offer Terms"). Delivery of an Initial Notice shall constitute the irrevocable
offer of the Selling Partners to sell their Units to the Offeree Partners
hereunder.

     (b) The Offeree Partners shall have the option, exercisable by delivering
written notice (the "Acceptance Notice") of such exercise to the Selling
Partners within 45 days of the date of the Initial Notice, to elect to purchase
all of the Units of the Selling Partners on the Offer Terms described in the
Initial Notice. If all of the Offeree Partners deliver an Acceptance Notice,
then all of the Units shall be transferred to the Offeree Partners on a pro rata
basis (based on the ratio of the number of Units owned by each Offeree Partner
delivering an Acceptance Notice to the number of Units owned by all Offeree
Partners delivering an Acceptance Notice or on any other basis that shall be
mutually agreed upon between the Offeree Partners delivering an 




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Acceptance Notice). If less than all of the Offeree Partners deliver an
Acceptance Notice, the Selling Partners shall give written notice thereof
(the "Additional Notice") to the Offeree Partners electing to purchase, and
such Offeree Partners shall have the option, exercisable by delivery of an
Acceptance Notice of such exercise to the Selling Partners within 15 days
of such Additional Notice, to purchase all of the Units, including the Units
it had not previously elected to purchase; provided, however, that any election
by an Offeree Partner not to purchase all such Units shall be deemed a
rescission of such Offeree Partner's original Acceptance Notice and an election
not to purchase any of the Units of the Selling Partners. The Acceptance Notice
shall set a date for closing the purchase, such date to be not less than 30
nor more than 90 days after delivery of the Acceptance Notice; provided that
such time period shall be subject to extension as reasonably necessary (up to a
maximum of an additional 120 days after such 90 day period) in order to comply
with any applicable filing and waiting period requirements under the Hart-Scott-
Rodino Antitrust Improvements Act. The closing shall be held at the
Partnership's offices. The purchase price for the Selling Partners' Units shall
be paid in cash delivered at the closing. The purchase shall be consummated by
appropriate and customary documentation (including the giving of representations
and warranties substantially similar to those set forth in Sections 2.1 through
2.3 of the Second Master Transaction Agreement).

     (c) If none of the Offeree Partners elect to purchase the Selling Partners'
Units within 45 days after the receipt of the Initial Notice, the Selling
Partners shall have a further 180 days during which they may, subject to
Sections 10.2(d) and (e), consummate the sale of their Units to a third party
purchaser at a purchase price and on such other terms that are no more favorable
to such purchaser than the Offer Terms. If the sale is not completed within such
further 180-day period, the Initial Notice shall be deemed to have expired and a
new notice and offer shall be required before the Selling Partners may make any
Transfer of their Units.

     (d) Before the Selling Partners may consummate a Transfer of their Units to
a third party in accordance with this Agreement, the Selling Partners shall
demonstrate to the Offeree Partners that the Person willing to serve as the
proposed purchaser's guarantor under the agreement contemplated by Section
10.2(e)(vi) has outstanding indebtedness that is rated investment grade by
Moody's Investors Service, Inc. and Standard & Poor's Corporation, or if such
Person has no rated indebtedness outstanding, such Person shall provide an
opinion from a nationally recognized investment banking firm that such Person
could be reasonably expected to obtain such ratings.

     (e) Notwithstanding the foregoing provisions of this Section 10.2, a
Partner may Transfer its Units (other than pursuant to Section 10.6) only if all
of the following occur:

               (i) The Transfer is accomplished in a non-public offering in
        compliance with, and exempt from, the registration and qualification
        requirements of all federal and state securities laws and regulations.

               (ii) The Transfer does not cause a default under any material
        contract to which the Partnership is a party or by which the Partnership
        or any of its properties is bound.

               (iii) The transferee executes an appropriate agreement to be
        bound by this Agreement.




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               (iv) The transferor and/or transferee bears all reasonable costs
        incurred by the Partnership in connection with the Transfer.

               (v) The business and activities of the transferee comply with
        Section 9.6.

               (vi) The guarantor of the transferee satisfies the criteria set
        forth in Section 10.2(d) and delivers an agreement to the ultimate
        parent entity of the Offeree Partners and to the Partnership,
        substantially in the form of the Amended and Restated Parent Agreement.

               (vii) The proposed transferor is not in default in the timely
        performance of any of its material obligations to the Partnership.

               (viii) The provisions of Section 10.3 are satisfied.

     No Limited Partner may Transfer its Units to any Person (other than in
accordance with Section 10.6) unless the Units of its General Partner Affiliate
and its Limited Partner Affiliate or Affiliates (if any) are simultaneously
transferred to such Person or a Wholly Owned Affiliate of such Person. No
General Partner may transfer its Units to any Person (other than a Wholly Owned
Affiliate of such Partner) unless the Units of its Affiliated Limited Partner
(or Limited Partners, if more than one) are simultaneously transferred to such
Person or a Wholly Owned Subsidiary of such Person.

     Upon consummation of a Transfer in accordance with Section 10.2, the
transferee or transferees shall immediately, and without any further action of
any Person, become (i) a Substitute Limited Partner if and to the extent Limited
Partner Units are transferred and (ii) a Substitute General Partner, if and to
the extent General Partner Units are transferred.

     Each Transfer shall become effective as of the first day of the calendar
month following the calendar month during which the Partnership Governance
Committee approves such Transfer and receives a copy of the instrument of
assignment and all such certificates and documents of the character described in
Section 10.2, which the Partnership Governance Committee may reasonably request.

    Without the need for the consent of any Person (subject to the provisions
contained in this Section 10.6):

     (a) any Partner may Transfer its Units to any Wholly Owned Affiliate of
such Partner (other than the Partner that is its Affiliate), provided the
transferee executes an instrument reasonably satisfactory to all of the General
Partners accepting the terms and provisions of this Agreement (except as may be
provided in Section 9.6). Upon consummation of a Transfer in accordance with
this Section 10.6(a), the transferee shall immediately, and without any further
action of any Person, become (i) a Substitute Limited Partner if and to the
extent Limited Partner Units are transferred and (ii) a Substitute General
Partner, if and to the extent General Partner Units are transferred; and

     (b) any Limited Partner may, at its option and at any time, (i) Transfer up
to 99% of its Limited Partner Units to its Affiliated General Partner, whereupon
such Limited Partner Units shall, without any further action, become General
Partner Units or (ii) Transfer all of the Limited




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Partner Units held by such Limited Partner to its Affiliated Limited Partner.
Promptly following any Transfer of Limited Partner Units in accordance with this
Section 10.6(b), each Partner shall take such actions and execute such
instruments or documents (including, without limitation, amendments to this
Agreement or supplemental agreements hereto) as may be reasonably necessary to
ensure that each Affiliated Partner Group shall, taken as a whole and following
such Transfer, maintain all of its rights under this Agreement as in effect
immediately prior to such Transfer (including, without limitation, the portion
of Available Net Operating Cash distributable to such Affiliated Partner Group).

     No Transfer of Units which is in violation of this Section 10 shall be
valid or effective, and the Partnership shall not recognize the same for the
purposes of making any allocation or distribution.


     (a) Each of the following events shall constitute a "Default" and create
the rights provided for in this Section 11 in favor of the Partnership and the
Non-Defaulting Partners against the Defaulting Partners:

               (i) the failure by a Partner to make any contribution to the
        Partnership as required pursuant to this Agreement (other than pursuant
        to the Contribution Agreement), which failure continues for at least
        five Business Days from the date that the Partner is notified such
        contribution is overdue;

               (ii) in the case of each of Lyondell GP and Lyondell LP, the
        failure to pay principal, when due, on the Lyondell Note, which failure
        continues for at least five Business Days from the date such payment is
        due; or

               (iii) the withdrawal, retirement, resignation or dissolution of a
        Partner (other than in connection with a Transfer of all of a Partner's
        Units in accordance with this Agreement); or the Bankruptcy of a Partner
        or its Guarantor.

     (b) The day upon which the Default commences or occurs (or if the Default
is subject to a cure period and is not timely cured, then the day following the
end of the applicable cure period) shall be the "Default Date." Without
prejudice to a Partner's (or any of its Affiliates') rights to seek temporary or
preliminary judicial relief, prior to any such Default Date all rights and
obligations of the Partners under this Agreement shall remain in full force and
effect.

     Provided that there shall be no duplication of remedies, without prejudice
to any right to pursue independently and at any time, including simultaneously,
any other remedy it may have under law, including the right to seek to recover
Damages, or equity, each Non-Defaulting Affiliated Partner Group in its sole
discretion may elect to pursue the following remedies:

     (a) At any time prior to the expiration of 60 days from the Default Date,
each Non-Defaulting Affiliated Partner Group may elect to purchase its pro rata
share (based on the ratio of the number of Units owned by such Partners to the
number of Units owned by all Non-Defaulting Partners electing to purchase) of
the Units of the Defaulting Partners as described in




<PAGE>
<PAGE>


Section 11.3; provided, however, that within 10 days after the determination of
the Fair Market Value, either Non-Defaulting Affiliated Partner Group may
withdraw its election. If a Non-Defaulting Affiliated Partner Group withdraws
its election to purchase after the determination of Fair Market Value, and the
other Non-Defaulting Affiliated Partner Group has elected and not so withdrawn,
the withdrawing Affiliated Partner Group shall provide notice within 5 days of
its withdrawal to such other Affiliated Partner Group. At any time prior to the
expiration of 10 days from receipt of such notice, the Affiliated Partner Group
receiving such notice may elect to purchase the Units as to which the election
to purchase has been withdrawn. If on the later to occur of (i) a Non-Defaulting
Affiliated Partner Group's withdrawal of its election to purchase or (ii) the
expiration of 10 days from receipt of the notice provided for in the foregoing
sentence, no election to purchase is in effect with respect to all of the Units
of the Defaulting Partners, then each Non-Defaulting Partner Affiliated Partner
Group shall have an additional 30 days from such time to elect an alternative
remedy under Section 11.2(b) below; and

     (b) At any time prior to the expiration of 60 days from the Default Date
(or if any Non-Defaulting Affiliated Partner Group initially elected to pursue
its remedy under Section 11.2(a) above and no elections to purchase all Units of
the Defaulting Partners are made and not withdrawn, at any time within the 30
days following the last applicable waiting period under Section 11.2(a)), any
Non-Defaulting Affiliated Partner Group may elect to effect a liquidation of the
Partnership under Section 11.4 and thereby cause the Partnership to dissolve
under Section 12.1(iv).

     (a) Upon any election pursuant to Section 11.2(a), the purchase price that
such Non-Defaulting Partners shall pay, in the aggregate, to the Defaulting
Partners for their Units shall be an amount equal to (i) the amount that the
Defaulting Partners would receive in a liquidation (assuming that any sale under
Section 12.2 were for an amount equal to the Fair Market Value, without giving
effect to any Damages) reduced by (ii) the unrecovered Damages attributable to
the Default by the Defaulting Partners.

     (b) If the Non-Defaulting Partners have a right to purchase the Units of
the Defaulting Partners, any Non-Defaulting Partner may first seek a
determination of Fair Market Value by delivering notice in writing to the
Defaulting Partners. Each such Non-Defaulting Affiliated Partner Group shall
have 10 days from the final determination of Fair Market Value (or if purchasing
pursuant to the withdrawal of election to purchase, 10 days from receipt of
notice as provided in Section 11.2(b)) to elect to purchase its share of the
Defaulting Partner Units by delivering notice of such election in writing, and
the purchase shall be consummated prior to the expiration of 60 days from the
date such notice is delivered; provided that, such time period shall be subject
to extension as reasonably necessary (up to a maximum of an additional 120 days
after such 60 day period) in order to comply with any applicable filing and
waiting period requirements under the Hart-Scott-Rodino Antitrust Improvements
Act.

     (c) The purchase price so determined shall be payable in cash at a closing
held at the Partnership's offices. The purchase shall be consummated by
appropriate and customary documentation (including the giving of representations
and warranties substantially similar to those set forth in Sections 2.1 through
2.4 of the Second Master Transaction Agreement) as soon as practicable and in
any event within the applicable time period specified in subsection (b).




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<PAGE>



     (d) The Non-Defaulting Partners may assign, in whole or in part, their
right to purchase the Units of the Defaulting Partners to one or more third
parties without the consent of any Partner hereunder.

     (e) If Units are transferred in accordance with this Section 11.3, whether
to the Non-Defaulting Partners or a third party (under subsection (d) above),
upon the consummation of such Transfer, each such transferee shall immediately,
and without any further action on the part of any Person, become (i) a
Substitute Limited Partner if and to the extent that Limited Partner Units were
transferred to such Person and (ii) a Substitute General Partner if and to the
extent that General Partner Units were transferred to such Person.

    Upon any election pursuant to Section 11.2(b), any Non-Defaulting Partner
shall have the right to elect to dissolve and liquidate the Partnership pursuant
to the procedures in Section 12.1(iv) (such procedures constituting a
"Liquidation"); provided, however, that any amount payable to the Defaulting
Partners in such Liquidation pursuant to Section 12.2 shall be reduced by,
without duplication, any unrecovered Damages incurred by the Non-Defaulting
Partners and the Non-Defaulting Partners' Percentage Interest of any unrecovered
Damages incurred by the Partnership in connection with the Default. The
Non-Defaulting Partner shall deliver notice of such election to dissolve and
liquidate in writing to the Partnership and the other Partners.

     Notwithstanding any other provision of this Agreement, commencing on the
Default Date and (i) prior to the Non-Defaulting Partners' collection of Damages
through the exercise of its legal remedies or otherwise, or (ii) while the
Non-Defaulting Partners are pursuing their remedies under Section 11.2(a) or
(b), the Representatives of the Defaulting General Partner shall not have any
voting or decisional rights with respect to matters requiring Partnership
Governance Committee Action, and such matters shall be determined solely by the
Representatives of the Non-Defaulting General Partners; provided, however, that
the foregoing loss of voting and decisional rights shall not occur as a result
of a Default caused solely by the Bankruptcy of a Partner or a Guarantor
described in Section 11.1(a)(iii); and provided further, that in the case of a
Default under Section 11.1(a)(i) or (ii), the foregoing loss of voting and
decisional rights shall not apply to those voting and decisional rights
contained in Sections 6.7(i), (x), (xvi) or (xviii) of this Agreement, which
rights shall continue in full force and effect at all times.

     As long as there is at least one other General Partner (who is hereby
authorized in such event to conduct the business of the Partnership without
dissolution), the withdrawal, retirement, resignation, dissolution or Bankruptcy
of a General Partner shall not dissolve the Partnership, but rather shall be a
Default covered by Section 11. The Partnership shall be dissolved upon the
happening of any one of the following events:

                (i) the written determination of all General Partners to
        dissolve the Partnership;

               (ii) the entry of a judicial decree of dissolution;

              (iii) any other act or event which results in the dissolution of
        a limited partnership under the Act (except as provided in the first
        sentence of this Section 12.1);




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<PAGE>



               (iv) the election of a Non-Defaulting Affiliated Partner Group to
        effect a dissolution of the Partnership under Section 11.4; or

                (v) after the delivery of a Deadlock Notice by a General Partner
        pursuant to Section 8.5, the written determination by any General
        Partner to dissolve the Partnership.


     (a) General. If the Partnership dissolves, it shall commence winding up
pursuant to the appropriate provisions of the Act and the procedures set forth
in this Section 12. Notwithstanding the dissolution of the Partnership, prior to
the termination of the Partnership, the business of the Partnership and the
affairs of the Partners, as such, shall continue to be governed by this
Agreement.

     (b) Control of Winding Up. The winding up of the Partnership shall be
conducted under the direction of the Partnership Governance Committee; provided,
however, that if the dissolution is caused by entry of a decree of judicial
dissolution, the winding up shall be carried out in accordance with such decree.

     (c) Manner of Winding Up. Unless the provisions of Section 12.2(e) apply,
the Partnership shall attempt to sell all property and apply the proceeds
therefrom in accordance with this Section 12.2(c) and Section 12.2(d) below.
Upon dissolution of the Partnership, the Partnership Governance Committee shall
determine the time, manner and terms of any sale or sales of Partnership
property pursuant to such winding up, consistent with its duties and having due
regard to the activity and condition of the relevant market and general
financial and economic conditions. Except as otherwise agreed by the Partners,
no distributions will be made in kind to any Partner without the consent of each
Partner.

     (d) Application of Assets. In the case of a dissolution and winding-up of
the Partnership, the Partnership's assets shall be applied as follows:

               (i) First, to satisfaction of the liabilities of the Partnership
        owing to creditors (including Partners and Affiliates of Partners who
        are creditors), whether by payment or reasonable provision for payment.
        Any reserves created to make any such provision for payment may be paid
        over by the Partnership to an independent escrow holder or trustee, to
        be held in escrow or trust for the purpose of paying any such
        contingent, conditional or unmatured liabilities or obligations, and, at
        the expiration of such period as the Partnership Governance Committee
        may deem advisable, such reserves shall be distributed to the Partners
        or their assigns in the manner set forth in subsection (d)(ii) below.

               (ii) Second, after all allocations of Profits or Losses and other
        items pursuant to Section 4, to the Partners in accordance with the
        balances in their Capital Accounts. Any Partner that then has a deficit
        in its Capital Account shall contribute cash in the amount necessary to
        eliminate such deficit. Such contributions shall be made within 90 days
        after the date in which all undistributed assets of the Partnership have
        been converted to cash.




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<PAGE>


               (iii) Notwithstanding the foregoing, if any Partner shall be
        indebted to the Partnership, then until payment in full of the principal
        of and accrued but unpaid interest on such indebtedness, regardless of
        the stated maturity or maturities thereof, the Partnership shall retain
        such Partner's distributive share of Partnership property and apply such
        sums to the liquidation of such indebtedness and the cost of operation
        of such Partnership property during the period of such liquidation.

     (e) Division of Assets upon Deadlock. If dissolution occurs pursuant to
Section 12.1(v), then the provisions of this Section 12.2(e) shall, if elected
by any Partner, apply in lieu of the provisions of Section 12.2(c), but subject
to the provisions of Section 12.2(d)(ii). In such event, the Partnership
properties shall be divided and distributed in kind to the Partners in
accordance with the provisions of Appendix E.

     Upon the completion of the liquidation of the Partnership and the
distribution of all Partnership assets, the Partnership's affairs shall
terminate and the Partnership shall cause to be executed and filed a Certificate
of Cancellation of the Partnership's Certificate of Limited Partnership pursuant
to the Act, as well as any and all other documents required to effectuate the
termination of the Partnership.

     Within a reasonable time following the completion of the winding-up and
liquidation of the Partnership's business, the Partnership Governance Committee
shall supply to each of the Partners a statement (which may be unaudited) which
shall set forth the assets and the liabilities of the Partnership as of the date
of complete liquidation, and each Partner's pro rata portion of distributions
pursuant to Section 12.2.


     (a) Except as provided in subsection (c) or (d) hereof, each Partner shall,
and shall cause each of its Affiliates and its and their respective partners,
shareholders, directors, officers, employees and agents (collectively, "Related
Persons") to, keep secret, retain in strictest confidence, and not distribute,
disseminate or disclose any and all Confidential Information except to (i) the
Partnership and its officers and employees, (ii) any lender to the Partnership
or (iii) any Partner or any of their respective Affiliates or other Related
Persons on a "need to know" basis in connection with the transactions leading up
to and contemplated by this Agreement and the operation of the Partnership, and
such Partner disclosing Confidential Information pursuant to this Section
13.1(a) shall use, and shall cause its Affiliates and other Related Persons to
use, such Confidential Information only for the benefit of the Partnership in
conducting the Partnership's business or for any other specific purposes for
which it was disclosed to such party; provided that the disclosure of financial
statements of, or other information relating to the Partnership shall not be
deemed to be the disclosure of Confidential Information (y) to the extent that
any Partner (or its ultimate parent entity) deems it necessary, appropriate or
customary pursuant to law, regulation or stock exchange rule (in the reasonable
good faith judgment of such parent entity) to disclose such information in or in
connection with filings with the SEC, press releases disseminated to the
financial community, presentations to lenders, presentations to ratings agencies
or information disclosed to similar audiences or (z) to the extent that in order
to sustain a position taken for tax purposes, any Partner deems it




<PAGE>
<PAGE>


necessary and appropriate to disclose such financial statements or other
information. All Confidential Information disclosed in connection with the
Partnership or pursuant to this Agreement shall remain the property of the
Person whose property it was prior to such disclosure unless such property has
been transferred to the Partnership pursuant to a Contribution Agreement.

        (b) No Confidential Information regarding the plans or operations of any
Partner or any Affiliate thereof received or acquired by or disclosed to any
unaffiliated Partner or Affiliate thereof in the course of the conduct of
Partnership business, or otherwise as a result of the existence of the
Partnership, may be used by such unaffiliated Partner or Affiliate thereof for
any purpose other than for the benefit of the Partnership in conducting the
Partnership Business. The Partnership and each Partner shall have the
affirmative obligation to take all necessary steps to prevent the disclosure to
any Partner or Affiliate thereof of information regarding the plans or
operations of such Partner and its Affiliates in markets and areas unrelated to
the business of the Partnership in which any other Partner and their respective
Affiliates compete.

        (c) In the event that any Partner is legally required (by
interrogatories, discovery requests for information or documents, subpoena,
civil investigative demand or similar process) to disclose any Confidential
Information, it is agreed that such Partner prior to disclosure will provide the
Partnership Governance Committee (and, if such Confidential Information concerns
another Partner, such Partner) with prompt notice of such request(s) so that the
Partnership Governance Committee (or such other Partner) may seek an appropriate
protective order or other appropriate remedy and/or waive the Partner's
compliance with the provisions of this Section. In the event that such
protective order or other remedy is not obtained, or that the Partnership
Governance Committee (and, if such Confidential Information concerns another
Partner, such Partner) grants a waiver hereunder, the Partner required to
furnish Confidential Information may furnish that portion (and only that
portion) of the Confidential Information which, in the opinion of such Partner's
counsel, such Partner is legally compelled to disclose, and such Partner will
exercise its commercially reasonable best efforts to obtain reliable assurance
that confidential treatment will be accorded any Confidential Information so
furnished.

        (d) Any Partner may disclose Confidential Information to a third party
who requires such Confidential Information for the purpose of evaluating a
possible purchase of such Partner's Units in accordance with Section 10;
provided, however, that such third party shall be informed by such Partner of
the confidential nature of the information and the existence of this Section
13.1 and prior to any disclosure shall execute a written confidentiality
agreement with such Partner substantially identical in scope to this Section and
providing that such confidentiality agreement is also made for the benefit of
the Partnership and each of the other Partners.

        (e) The Partners and their Affiliates shall consult with each other on
an ongoing basis with respect to disclosures regarding the Partnership and its
business and affairs permitted under Section 13.1(a)(y).


     (a) Indemnification by Partnership. The Partnership agrees, to the fullest
extent permitted by applicable law, to indemnify, defend and hold harmless each
Partner, its Affiliates and their respective officers, directors and employees
from, against and in respect of any Liability which such Indemnified Person may
sustain, incur or assume as a result of, or relative




<PAGE>
<PAGE>



to, a Third Party Claim arising out of or in connection with the business,
property or affairs of the Partnership, except to the extent that it is Finally
Determined that such Third Party Claim arose out of or was related to actions or
omissions of the indemnified Partner, its Affiliates or any of their respective
officers, directors or employees (acting in their capacities as such)
constituting a breach of this Agreement or any Related Agreement. The
Partnership shall periodically reimburse or advance to any Person entitled to
indemnity under this subsection (a) its legal and other expenses incurred in
connection with defending any claim with respect to such Liability if such
Person shall agree to reimburse promptly the Partnership for such amounts if it
is finally determined that such Person was not entitled to indemnity hereunder.
Nothing in this Section 13.2(a) is intended to, nor shall it, affect or take
precedence over the indemnity provisions contained in any Related Agreement.

     (b) Partner's Right of Contribution. Each Partner hereby agrees, to the
fullest extent permitted by law, to indemnify, defend and hold harmless the
other Partners, their Affiliates and their respective officers, directors and
employees from and against the indemnifying Partner's Percentage Interest
(calculated at the time any such Liability was incurred) of any Liability that
such Indemnified Person may sustain, incur or assume as a result of or relating
to any Third Party Claim arising out of or in connection with the business,
property or affairs of the Partnership; provided, however, that such indemnified
Partner, its Affiliates and their respective officers, directors and employees
shall not be entitled to indemnity under this subsection (b) to the extent that
it is Finally Determined that such Third Party Claim arose out of or was related
to actions or omissions of the indemnified Partner, its Affiliates or any of
their respective officers, directors or employees (acting in their capacities as
such) constituting a breach of this Agreement or any Related Agreement;
provided, further, that such indemnified Partner, its Affiliates and their
respective officers, directors and employees shall not be entitled to indemnity
under this subsection (b) unless (x) the indemnified Partner shall first make a
written demand for indemnification from the Partnership in accordance with
subsection (a) above and subsection (c) below and the Partnership shall fail to
satisfy such demand in a manner reasonably satisfactory to the indemnified
Partner within 60 days of such notice or (y) the Partnership is insolvent or
otherwise unable to satisfy its obligations. The indemnifying Partner shall
periodically reimburse any Person entitled to indemnity under this subsection
(b) for its legal and other expenses incurred in connection with defending any
claim with respect to such Liability if such Person shall agree to reimburse
promptly the indemnifying Partner for such amounts if it is Finally Determined
that such Person was not entitled to indemnity hereunder.

     (c) Procedures. Promptly after receipt by a Person entitled to
indemnification under subsection (a) or (b) (an "Indemnified Party") of notice
of any pending or threatened claim against it (a "Claim"), such Indemnified
Party shall give prompt written notice (including copies of all papers served
with respect to such claim) to the party to whom the Indemnified Party is
entitled to look for indemnification (the "Indemnifying Party") of the
commencement thereof, which notice shall describe in reasonable detail the
nature of the Third Party Claim, an estimate of the amount of damages
attributable to the Third Party Claim to the extent feasible and the basis of
the Indemnified Party's request for indemnification under this Agreement;
provided that the failure to so notify the Indemnifying Party shall not relieve
the Indemnifying Party of any liability that it may have to any Indemnified
Party except to the extent the Indemnifying Party demonstrates that it is
prejudiced thereby. In case any Claim that is subject to indemnification under
subsection (a) shall be brought against an Indemnified Party and it shall give
notice to the Indemnifying Party of the commencement thereof, the Indemnifying
Party may, and at the request of the Indemnified Party shall, participate in and
control the defense of the Third Party




<PAGE>
<PAGE>



Claim with counsel of its choice reasonably satisfactory to the Indemnified
Party. The Indemnified Party shall have the right to employ separate counsel in
any such action and to participate in the defense thereof, but the fees and
expenses of such counsel shall be at the expense of the Indemnified Party unless
(i) the employment thereof has been specifically authorized in writing by the
Indemnifying Party, (ii) the Indemnifying Party failed to assume the defense and
employ counsel or failed to diligently prosecute or settle the Third Party Claim
or (iii) there shall exist or develop a conflict that would ethically prohibit
counsel to the Indemnifying Party from representing the Indemnified Party. If
requested by the Indemnifying Party, the Indemnified Party agrees to cooperate
with the Indemnifying Party and its counsel in contesting any Third Party Claim
that the Indemnifying Party elects to contest, including, without limitation, by
making any counterclaim against the Person asserting the Third Party Claim or
any cross-complaint against any Person, in each case only if and to the extent
that any such counterclaim or cross-complaint arises from the same actions or
facts giving rise to the Third Party Claim. The Indemnifying Party shall be the
sole judge of the acceptability of any compromise or settlement of any claim,
litigation or proceeding in respect of which indemnity may be sought hereunder,
provided that the Indemnifying Party will give the Indemnified Party reasonable
prior written notice of any such proposed settlement or compromise and will not
consent to the entry of any judgment or enter into any settlement with respect
to any Third Party Claim without the prior written consent of the Indemnified
Party, which shall not be unreasonably withheld. The Indemnifying Party (if the
Indemnified Party is entitled to indemnification hereunder) shall reimburse the
Indemnified Party for its reasonable out of pocket costs incurred with respect
to such cooperation.

     If the Indemnifying Party fails to assume the defense of a Third Party
Claim within a reasonable period after receipt of written notice pursuant to the
first sentence of this subparagraph (c), or if the Indemnifying Party assumes
the defense of the Indemnified Party pursuant to this subparagraph (c) but fails
diligently to prosecute or settle the Third Party Claim, then the Indemnified
Party shall have the right to defend, at the sole cost and expense of the
Indemnifying Party (if the Indemnified Party is entitled to indemnification
hereunder), the Third Party Claim by all appropriate proceedings, which
proceedings shall be promptly and vigorously prosecuted by the Indemnified Party
to a final conclusion or settled. The Indemnified Party shall have full control
of such defense and proceedings; provided that the Indemnified Party shall not
settle such Third Party Claim without the written consent of the Indemnifying
Party, which consent shall not be unreasonably withheld. The Indemnifying Party
may participate in, but not control, any defense or settlement controlled by the
Indemnified Party pursuant to this Section, and the Indemnifying Party shall
bear its own costs and expenses with respect to such participation.

     Notwithstanding the other provisions of this Section 13.2, if the
Indemnifying Party disputes its potential liability to the Indemnified Party
under this Section 13.2 and if such dispute is resolved in favor of the
Indemnifying Party, the Indemnifying Party shall not be required to bear the
costs and expenses of the Indemnified Party's defense pursuant to this Section
13.2 or of the Indemnifying Party's participation therein at the Indemnified
Party's request, and the Indemnified Party shall reimburse the Indemnifying
Party in full for all costs and expenses of the litigation concerning such
dispute. If a dispute over potential liability is resolved in favor of the
Indemnified Party, the Indemnifying Party shall reimburse the Indemnified Party
in full for all costs of the litigation concerning such dispute.





<PAGE>
<PAGE>


     After it has been determined, by acknowledgment, agreement, or ruling of
court of Legal Requirements, that an Indemnifying Party is liable to the
Indemnified Party under this Section 13.2(c), the Indemnifying Party shall pay
or cause to be paid to the Indemnified Party the amount of the Liability within
ten business days of receipt by the Indemnifying Party of a notice reasonably
itemizing the amount of the Liability but only to the extent actually paid or
suffered by the Indemnified Party.

     (d) Survival. The indemnities contained in this Section shall survive the
termination and liquidation of the Partnership.

     (e) Subrogation. In the event of any payment by or on behalf of an
Indemnifying Party to an Indemnified Party in connection with any Liability, the
Indemnifying Party (or any guarantor who made such payment) shall be subrogated
to and shall stand in the place of the Indemnified Party as to any events or
circumstances in respect of which the Indemnified Party may have any right or
claim against any third party (not including the Partnership) relating to such
event or indemnification. The Indemnified Party shall cooperate with the
Indemnifying Party (or such guarantor) in any reasonable manner in prosecuting
any subrogated claim.

     (f) Nothing in this Agreement shall be deemed to limit the Partnership's
power to indemnify its officers, employees, agents or any other person, to the
fullest extent permitted by law.


     (a) In the case of a Liability relating to a Third Party Claim and caused
by the Fault of a General Partner, its Affiliates or any of their respective
officers, directors or employees (acting in their capacities as such) against
whom reimbursement is being sought, such General Partner hereby agrees to
reimburse the Partnership for such Liability to the extent that:

               (i) the Liability relates to a Third Party Claim that has been
finally resolved and that the Partnership has actually paid (an "Expense");

               (ii) the Expense is not covered by insurance carried by the
Partnership (excluding any amounts relating to insured claims to the extent that
they fall within deductibles or self-insured retentions or are above applicable
coverage limits); and

               (iii) the Expense is not offset by third party indemnification or
otherwise;

provided, however, that such General Partner shall reimburse the Partnership for
the Expense only to the extent and in proportion to its Fault.

        (b) Any claim by the Partnership for reimbursement under this Section
may be initiated upon written notice from a Nonconflicted General Partner to the
General Partner to whom the Partnership is entitled to look for indemnification,
and the General Partners shall have a period of 60 days during which to reach
unanimous agreement as to the terms on which any reimbursement shall be made. If
the General Partners are unable to agree or there are any disputes over Fault
and reimbursement under this Section, such matters shall be resolved pursuant to
the Dispute Procedures.




<PAGE>
<PAGE>


     Except as otherwise provided for herein, all controversies or disputes
arising under this Agreement shall be resolved pursuant to the provisions set
forth on Appendix D (the "Dispute Procedures").

     TO THE FULLEST EXTENT PERMITTED BY LAW AND WITHOUT LIMITING OR ENLARGING
THE SCOPE OF THE LIMITATION OF LIABILITY, INDEMNIFICATION, RELEASE AND
ASSUMPTION OBLIGATIONS SET FORTH HEREIN, A PARTY SHALL BE ENTITLED TO
INDEMNIFICATION OR RELEASE HEREUNDER IN ACCORDANCE WITH THE TERMS HEREOF,
REGARDLESS OF WHETHER THE LOSS GIVING RISE TO ANY SUCH INDEMNIFICATION OR
RELEASE IS THE RESULT OF THE SOLE, GROSS, ACTIVE, PASSIVE, CONCURRENT OR
COMPARATIVE NEGLIGENCE, STRICT LIABILITY OR OTHER FAULT OR VIOLATION OF ANY LAW
OF OR BY ANY SUCH PARTY. THE PARTIES AGREE THAT THIS STATEMENT CONSTITUTES A
CONSPICUOUS LEGEND.

     From time to time, each Partner agrees to execute and deliver such
additional documents, and will provide such additional information and
assistance, as the Partnership may reasonably require to carry out the terms of
this Agreement and to accomplish the Partnership's business.

     Except as may be expressly provided herein, this Agreement shall be binding
upon and inure to the benefit of the successors of the Partners, but no Partner
may assign or delegate any of its rights or obligations under this Agreement.
Except as expressly provided herein, any purported assignment or delegation
shall be void and ineffective.

     This Agreement is made solely for the benefit of the Partnership and the
Partners, and no other Person, including any officer or employee of the
Partnership or any Partner, shall have any right, claim or cause of action under
or by virtue of this Agreement.

     All notices, requests and other communications that are required or may be
given under this Agreement shall, unless otherwise provided for elsewhere in
this Agreement, be in writing and shall be deemed to have been duly given if and
when (i) transmitted by telecopier facsimile with proof of confirmation from the
transmitting machine or (ii) delivered by commercial courier or other hand
delivery, as follows:


</TABLE>
<TABLE>

<S>                                           <C>

Lyondell Petrochemical Company                 Millennium Chemicals Inc.
1221 McKinney Street                           99 Wood Avenue South
Houston, Texas 77010                           Iselin, New Jersey  08830
Attention:  Kerry A. Galvin                    Attention:  George H. Hempstead, III
Telecopy Number: (713) 309-4718                Telecopy Number: (908) 603-6857

Occidental Petroleum Corporation               Equistar Chemicals, LP
10889 Wilshire Blvd.                           P.O. Box 2583
Los Angeles, CA 90004                          1221 McKinney Street
Attention: President                           Houston, Texas  77252-2583
Telecopy Number: (310) 443-6333                Attention:  Gerald A. O'Brien
                                               Telecopy Number:  (713) 309-4718
</TABLE>




<PAGE>
<PAGE>



With a copy to:

Occidental Petroleum Corporation
10889 Wilshire Boulevard
Los Angeles, California 90024
Attention:  General Counsel
Telecopy Number:  (310) 443-6333

     In the event that any provisions of this Agreement shall be Finally
Determined to be unenforceable, such provision shall, so long as the economic
and legal substance of the transactions contemplated hereby is not affected in
any materially adverse manner as to any Partner, be deemed severed from this
Agreement and every other provision of this Agreement shall remain in full force
and effect.

     In construing this Agreement, the following principles shall be followed:
(i) no consideration shall be given to the captions of the articles, sections,
subsections or clauses, which are inserted for convenience in locating the
provisions of this Agreement and not as an aid in construction; (ii) no
consideration shall be given to the fact or presumption that any Partner had a
greater or lesser hand in drafting this Agreement; (iii) examples shall not be
construed to limit, expressly or by implication, the matter they illustrate;
(iv) the word "includes" and its syntactic variants mean "includes, but is not
limited to" and corresponding syntactic variant expressions; (v) the plural
shall be deemed to include the singular, and vice versa; (vi) each gender shall
be deemed to include the other gender; and (vii) each appendix, exhibit,
attachment and schedule to this Agreement is a part of this Agreement.

     This Agreement may be executed in one or more counterparts, each of which
shall constitute an original, and all of which when taken together shall
constitute one and the same original document.

     Except as provided in Section 12.2(e), each Person who now or hereafter is
a party hereto or who has any right herein or hereunder irrevocably waives
during the term of the Partnership any right to maintain any action for
partition with respect to Partnership property.

     The laws of the State of Delaware shall govern the construction,
interpretation and effect of this Agreement without giving effect to any
conflicts of law principles.

     ANY JUDICIAL PROCEEDING BROUGHT AGAINST ANY PARTY TO THIS AGREEMENT OR ANY
DISPUTE UNDER OR ARISING OUT OF OR IN CONNECTION WITH THIS AGREEMENT OR ANY
MATTER RELATED HERETO SHALL BE BROUGHT IN THE FEDERAL OR STATE COURTS OF THE
STATE OF DELAWARE, AND, BY EXECUTION AND DELIVERY OF THIS AGREEMENT, EACH OF THE
PARTIES TO THIS AGREEMENT ACCEPTS THE EXCLUSIVE JURISDICTION OF SUCH COURTS AND
IRREVOCABLY AGREES TO BE BOUND BY ANY JUDGMENT (AS FINALLY ADJUDICATED) RENDERED
THEREBY IN CONNECTION WITH THIS AGREEMENT. EACH OF THE PARTIES TO THIS AGREEMENT
SHALL APPOINT THE CORPORATION TRUST COMPANY, THE PRENTICE-HALL CORPORATION
SYSTEM, INC. OR A SIMILAR ENTITY (THE "AGENT") AS AGENT TO RECEIVE ON ITS BEHALF
SERVICE




<PAGE>
<PAGE>



OF PROCESS IN ANY PROCEEDING IN ANY SUCH COURT IN THE STATE OF DELAWARE. THE
FOREGOING CONSENTS TO JURISDICTION AND APPOINTMENTS OF AGENT TO RECEIVE SERVICE
OF PROCESS SHALL NOT CONSTITUTE GENERAL CONSENTS TO SERVICE OF PROCESS IN THE
STATE OF DELAWARE FOR ANY PURPOSE EXCEPT AS PROVIDED ABOVE AND SHALL NOT BE
DEEMED TO CONFER RIGHTS ON ANY PERSON OTHER THAN THE PARTIES HERETO.

     Except as otherwise provided herein or in the Second Master Transaction
Agreement, each party hereto shall be responsible for its own expenses incurred
in connection with this Agreement.

     EACH PARTY HEREBY KNOWINGLY AND INTENTIONALLY, IRREVOCABLY AND 
UNCONDITIONALLY WAIVES TRIAL BY JURY IN ANY LEGAL ACTION OR PROCEEDING RELATING
TO THIS AGREEMENT AND FOR ANY COUNTERCLAIM THEREIN.


     (a) If the payment due date for any payment hereunder (including capital
contributions and Damages) falls on a Saturday or a bank or federal holiday,
other than a Monday, the payment shall be due on the past preceding business
day. If the payment due date falls on a Sunday or Monday bank or federal
holiday, the payment shall be due on the following business day.

     (b) Interest shall accrue on any unpaid and outstanding amount from the
time such amount is due and payable through the date upon which such amount,
together with accrued interest thereon, is paid in full. Interest shall, subject
to the provisions of Section 13.20, accrue at a per annum rate equal to the
lesser of (i) the Agreed Rate plus 2%, compounded quarterly, to the extent
permitted by law or (ii) the Highest Lawful Rate.

     (c) A wire transfer or delivery of a check shall not operate to discharge
any payment under this Agreement and shall be accepted subject to collection.

     Notwithstanding any other provision of this Agreement, it is the intention
of the parties hereto to conform strictly to Applicable Usury Laws, in each case
to the extent they are applicable to this Agreement. Accordingly, if any payment
made pursuant to this Agreement results in any Person having paid any interest
in excess of the Maximum Amount, or if any transaction contemplated hereby would
otherwise be usurious under any Applicable Usury Laws, then, in that event, it
is agreed as follows: (i) the provisions of this Section 13.20 shall govern and
control; (ii) the aggregate of all interest under Applicable Usury Laws that is
contracted for, charged or received under this Agreement shall under no
circumstances exceed the Maximum Amount, and any excess shall be promptly
refunded to the payor by the recipient hereof; (iii) no Person shall be
obligated to pay the amount of such interest to the extent that it is in excess
of the Maximum Amount; and (iv) the effective rate of any interest payable under
this Agreement shall be ipso facto reduced to the Highest Lawful Rate, as
hereinafter defined, and the provisions of this Agreement immediately shall be
deemed reformed, without the necessity of the execution of any new document or
instrument, so as to comply with all Applicable Usury Laws. All sums paid, or
agreed to be paid, to any person pursuant to this Agreement for the use,
forbearance or detention of any indebtedness arising hereunder shall, to the
fullest extent permitted by the




<PAGE>
<PAGE>




Applicable Usury Laws, be amortized, pro rated, allocated and spread throughout
the full term of any such indebtedness so that the actual rate of interest does
not exceed the Highest Lawful Rate in effect at any particular time during the
full term thereof.

     EACH PARTY HEREBY WAIVES ANY OBJECTION IT MAY HAVE BASED UPON LACK OF
PERSONAL JURISDICTION, IMPROPER VENUE OR FORUM NON-CONVENIENS.

     Millennium America is a party to this Agreement for the sole purpose of
evidencing its agreement to be bound by the provisions set forth in Section
8.6(c) and is not a partner of the Partnership and shall not have any rights
under this Agreement or any other obligations under this Agreement.

     All waivers, modifications, amendments or alterations of this Agreement
shall require the written approval of each of the General Partners and each of
the Limited Partners.

     At any such time as the Lease is terminated, expires or is otherwise not in
force and effect (other than a No Rebuilding Termination), the following shall
occur:

     (a) The number of Units held by Occidental LP1 shall be reduced from 6,623
Units to 2,541 Units.

     (b) The Partnership and Occidental LP1 shall form a general partnership
(the "LC Partnership") by entering into a partnership agreement having the
provisions described in Section 14.2 (the "GPA").

     (c) The Partnership shall distribute to Occidental LP1 the balance in its
Capital Account.

     (d) Occidental LP1 shall cause the Lake Charles Facility to be contributed
to the LC Partnership and shall contribute to the LC Partnership the amount
received pursuant to Section 14.1(c), plus an amount equal to any proceeds of a
partial condemnation of the Lake Charles Facility received by OCC under the
terms of the Lease, and the Partnership shall contribute to the LC Partnership
the amount received pursuant to Section 26(b) of the Lease in connection with
such termination of the Lease.

     (e) Immediately after and as a result of the foregoing transactions, the
capital account of each of Occidental LP1 and the Partnership in the LC
Partnership shall be pro rata in accordance with the partners' equity ownership
interests, and Occidental LP1's Capital Account shall be the same per Unit as
the Capital Accounts of the other Partners (determined without regard to the
special allocations in Sections 4.1(a) through (c)).

     (f) Sections 4.1(e) and (f) shall terminate.

     The GPA shall include provisions to the following  effect, as well as
other customary provisions:




<PAGE>
<PAGE>



     (a) The LC Partnership shall be formed under the laws of Delaware. The two
partners shall be the Partnership and Occidental LP1. The Partnership shall have
an equity ownership interest of 49.9%, and Occidental LP1 shall have an equity
ownership interest of 50.1%.

     (b) The term of the GPA shall be the same as the term of this Agreement.

     (c) All issues relating to the LC Partnership must be decided by mutual
agreement of both partners, except that the LC Partnership shall enter into an
operating agreement with the Partnership (in its individual capacity), as
operator, that shall delegate to the operator the right and obligation to make
all day-to-day decisions of the LC Partnership, which day-to-day decisions shall
for this purpose be deemed to be all decisions of the LC Partnership other than
issues comparable to those issues set forth in Section 6.7 hereof (which issues
must be decided by the partners of the LC Partnership). Such operating agreement
shall provide for the LC Partnership to pay and reimburse the operator for all
costs whatsoever incurred or paid by the operator in performing its obligations
under the operating agreement. The term of such operating agreement shall be the
same as the term of the LC Partnership.

     (d) All contributions and distributions will be made, and all book income
and deductions will be allocated, in accordance with the partners' equity
ownership interests. Tax items will be allocated between the partners in a
manner similar to that set forth in this Agreement.

     (e) No partner in the LC Partnership may transfer (except a transfer to a
Wholly Owned Affiliate) or encumber its equity ownership without the consent of
the other partner.

     Upon a No Rebuilding Termination, Occidental LP1 shall have the option to
contribute to the Partnership within 30 days following the No Rebuilding
Termination an amount (the "Payment Amount") equal to the excess, if any, of (a)
the Proceeds plus the book value (determined in accordance with GAAP) as
recorded on the books of OCC for that portion and aspect of the Lake Charles
Facility that consititutes land, over (b) the payment made pursuant to Section
26(b) of the Lease in connection with such No Rebuilding Termination. If within
such 30-day period Occidental LP1 contributes the Payment Amount to the
Partnership, (i) Occidental LP1's 6,623 Units shall remain outstanding, (ii) its
Capital Account shall be credited with the Payment Amount, (iii) the assets of
the Partnership shall be revalued so that the Capital Account of each Partner is
the same per Unit (determined without regard to the special allocations in
Sections 4.1(a) through (c)), and (iv) Sections 4.1(e) and (f) shall terminate.
If Occidental LP1 does not contribute the Payment Amount to the Partnership
within such 30-day period, (A) Occidental LP1's 6,623 Units shall be redeemed
and canceled and of no further force and effect and (B) an amount equal to the
balance in Occidental LP1's Capital Account shall be distributed by the
Partnership to Occidental LP1, or if there is a deficit in Occidental LP1's
Capital Account, Occidental LP1 shall contribute to the Partnership an amount of
cash necessary to eliminate such deficit. Upon completion of the steps in
clauses (A) and (B), Occidental LP1's entire interest in the Partnership shall
terminate.

     If Occidental LP1 breaches any of its obligations under Section 14.1, (a)
Occidental LP1's 6,623 Units shall be redeemed and canceled and of no further
force and effect and (b) an amount equal to the balance in Occidental LP1's
Capital Account shall be distributed by the Partnership to Occidental LP1, or if
there is a deficit in Occidental LP1's Capital Account, Occidental LP1




<PAGE>
<PAGE>



shall contribute to the Partnership an amount of cash necessary to eliminate
such deficit. Upon completion of the steps in clauses (a) and (b), Occidental
LP1's entire interest in the Partnership shall terminate.

     IN WITNESS WHEREOF, this Agreement has been executed on behalf of each of
the parties hereto, by their respective officers thereunto duly authorized,
effective as of the date first written above.

                                 GENERAL PARTNERS

                                 LYONDELL PETROCHEMICAL G.P. INC.

                                 By: /s/ Dan F. Smith 
                                   --------------------------------------------
                                 Name: Dan F. Smith
                                 Title: President and Chief Executive Officer


                                 MILLENNIUM PETROCHEMICALS GP LLC


                                 By: Millennium Petrochemicals Inc., its Manager

                                 By: /s/ George H. Hempstead III
                                   ---------------------------------------------
                                 Name: George H. Hempstead III.
                                 Title: Senior Vice President


                                 PDG CHEMICAL INC.


                                 By: /s/ R.J. Schuh
                                   ---------------------------------------------
                                 Name: R.J. Schuh 
                                 Title: President

 [Signature Page 1 of 3 for Amended and Restated Limited Partnership Agreement]

                                 LIMITED PARTNERS

                                 LYONDELL PETROCHEMICAL L.P. INC.

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

                                 MILLENNIUM PETROCHEMICALS LP LLC





<PAGE>
<PAGE>






                                 By: Millennium Petrochemicals Inc., its Manager


                                 By: /s/ George H. Hempstead, III 
                                    -------------------------------------------
                                     Name: George H. Hempstead, III
                                     Title: Senior Vice President


                                 OCCIDENTAL PETROCHEM PARTNER 1, INC.

                                 By: /s/ John W. Morgan
                                     -------------------------------------------
                                     Name:John W. Morgan
                                     Title: Vice President


                                 OCCIDENTAL PETROCHEM PARTNER 2, INC.


                                 By: /s/ John W. Morgan
                                     -------------------------------------------
                                    Name: John W. Morgan
                                    Title: Vice President

 [Signature Page 2 of 3 for Amended and Restated Limited Partnership Agreement]
                           SPECIAL JOINDER PURSUANT TO
                                  SECTION 13.22


                                 MILLENNIUM AMERICA INC.


                                 By: /s/ George H. Hempstead, III
                                     -------------------------------------------
                                     Name: George H. Hempstead, III
                                     Title: Senior Vice President

 [Signature Page 3 of 3 for Amended and Restated Limited Partnership Agreement]

                                   APPENDIX A
                        TO LIMITED PARTNERSHIP AGREEMENT
                        --------------------------------

                                  DEFINED TERMS
                                  -------------

     1998 Credit Facility. See Section 8.6(a).

     AAA. See Appendix D.

     Acceptance Notice. See Section 10.2(b).




<PAGE>
<PAGE>



     Act. The Delaware Revised Uniform Limited Partnership Act, as amended and 
in effect from time to time.

     Additional Related Agreements. The agreements defined as "Related
Agreements" in the Second Master Transaction Agreement (other than this
Agreement), as such agreements may be amended from time to time after the date
hereof.

     Adjusted Capital Account Deficit. With respect to any Partner, the deficit
balance, if any, in such Partner's Capital Account as of the end of the relevant
fiscal year, after giving effect to the following adjustments:

               (i) Such Capital Account shall be deemed to be increased by any
        amounts which such Partner is obligated to restore to the Partnership
        (pursuant to this Agreement or otherwise) or is deemed to be obligated
        to restore pursuant to the second to last sentence of Regulation
        'SS'1.704-2(g)(1) and 'SS'1.704-2(i)(5) (relating to allocations
        attributable to nonrecourse debt).

               (ii) Such Capital Account shall be deemed to be decreased by the
        items described in Regulation 'SS'1.704-1(b)(2)(ii)(d)(4), (5) and (6).

The foregoing definition of Adjusted Capital Deficit is intended to comply with
the provisions of Regulation 'SS'1.704-1(b)(2)(ii)(d) and shall be interpreted
and applied consistently therewith.

     Additional Notice. See Section 10.2(b).

     Affiliate. As to any specified Person, any other Person that directly or
indirectly through one or more intermediaries, controls or is controlled by or
is under common control with the specified Person; provided, however, that for
purposes of this Agreement such term shall not include (i) the Partnership or
any entities controlled by it, (ii) in the case of Millennium GP and Millennium
LP shall not include Suburban Propane Partners, L.P. and any entities controlled
by it and (iii) in the case of Occidental GP, Occidental LP1 and Occidental LP2,
shall not include Canadian Occidental Petroleum Ltd. and any entities controlled
by it. For purposes of this definition the term "control" shall have the meaning
set forth in 17 CFR 230.405, as in effect on the date hereof.

     Affiliated General Partner. In the case of Lyondell LP, the "Affiliated
General Partner" shall mean Lyondell GP. In the case of Millennium LP, the
"Affiliated General Partner" shall mean Millennium GP. In the case of each of
Occidental LP1 and Occidental LP2, the "Affiliated General Partner" shall mean
Occidental GP.

     Affiliated Limited Partner. In the case of Lyondell GP, the "Affiliated
Limited Partner" shall mean Lyondell LP. In the case of Millennium GP, the
"Affiliated Limited Partner" shall mean Millennium LP. In the case of Occidental
GP, each of Occidental LP1 and Occidental LP2 shall be "Affiliated Limited
Partner".

     Affiliated Partner Group. A General Partner and its Affiliated Limited
Partner or Affiliated Limited Partners, if more than one.




<PAGE>
<PAGE>



     Agreed Rate. The base commercial lending rate announced by Citibank, N.A.
(or its successor) at its principal office, in effect from time to time, such
interest rate to change automatically, effective as of the date of each change
in such base rate.

     Agreement. This Amended and Restated Limited Partnership Agreement of
Equistar Chemicals, LP, as amended from time to time.

     Alternate. See Section 6.4(b).

     Amended and Restated Indemnity Agreement. The Amended and Restated
Indemnity Agreement dated as of the date of this Agreement among Lyondell GP,
Lyondell LP, Millennium GP, Millennium LP, Millennium America, Occidental GP,
Occidental LP1, Occidental LP2 and OCC.

     Amended and Restated Parent Agreement. The Amended and Restated Parent
Agreement dated as of the date of this Agreement between the Partnership,
Lyondell, Millennium, Occidental, Occidental Chemical Corporation and Oxy CH
Corporation.

     Annual Budget. See Section 8.2.

     Applicable Usury Laws. Laws regarding the use, forbearance or detention of
any indebtedness arising under this Agreement whether such laws are now or
hereafter in effect, including the laws of the United States of America or any
other jurisdiction whose laws are applicable, and including any subsequent
revisions to or judicial interpretations of those laws.

     Arbitrator. See Appendix D.

     Asset Fair Market Value. With respect to any asset, as of the date of
determination, the cash price at which a willing seller would sell, and a
willing buyer would buy, each being apprised of all relevant facts and neither
acting under compulsion, such as in an arm's-length negotiated transaction with
an unaffiliated third party without time constraints.

     Assumed Liabilities. In the case of Lyondell LP and Lyondell GP, Assumed
Liabilities means the "Assumed Liabilities" as defined in the Contribution
Agreement of Lyondell. In the case of Millennium LP and Millennium GP, Assumed
Liabilities shall mean the "Assumed Liabilities" as defined in the Contribution
Agreement of Millennium Petrochemicals. In the case of Occidental LP1,
Occidental LP2 and Occidental GP, Assumed Liabilities means the "Assumed
Liabilities" as defined in the Contribution Agreement of Occidental.

     Auxiliary Committee. See Section 6.9.

     Available Net Operating Cash. At the time of determination, (a) all cash
and cash equivalents on hand in the Partnership as of the most recent month end,
plus the excess, if any, of the Partnership Target Debt over the Partnership's
actual indebtedness (as determined in accordance with GAAP) as of such month
end, less (b) the Projected Cash Requirements, if any, of the Partnership as of
such month end, as determined by the Executive Officers of the Partnership. For
purposes of this definition, "Projected Cash Requirements" means, for the
12-month period following any such month end, the excess, if any, of the sum of
(a) forecast capital expenditures, plus (b) forecast cash payments for Taxes,
debt service including principal and 




<PAGE>
<PAGE>



interest requirements and other non-cash credits to income, plus (c) forecast
cash reserves for future operations or other requirements, over the sum of (1)
forecast net income of the Partnership, plus (2) the sum of forecast
depreciation, amortization, other non-cash charges to income, interest expenses,
and Tax expenses, in each case to the extent deducted in determining net income,
plus or minus (3) forecast decreases or increases, respectively, in working
capital, plus (4) the forecast cash proceeds of dispositions of assets (net of
expenses) plus (5) an amount equal to the forecast net proceeds of debt
financings, contributions and payments of the Lyondell Note. For purposes of
this definition, "Partnership Target Debt" means for such month end, the level
of indebtedness (as determined in accordance with GAAP) projected for the
Partnership in the most recently approved Strategic Plan, except to the extent
the Executive Officers of the Partnership determine that changes in the
financial condition, results of operations, assets, business or prospects of the
Partnership make a change advisable, in which case the Partnership shall advise
the General Partners promptly regarding the basis for the change. Projected Cash
Requirements shall be calculated consistent with the most recently approved
Strategic Plan, except to the extent the Executive Officers of the Partnership
determine that changes in the financial condition, results of operations,
assets, business or prospects of the Partnership make a change advisable, in
which case the Partnership shall advise the General Partners promptly regarding
the basis for the change.

     Bank Credit Agreement. The Credit Agreement dated as of November 25, 1997
among the Partnership, as Borrower, Millennium America, as Guarantor and the
lenders party thereto.

     Bank Credit Agreement Repayment Amount. An amount equal to (i) $419,700,000
less (ii) the Bank Credit Agreement Available Amount, but in no event shall the
Bank Credit Agreement Repayment Amount be less than zero. The "Bank Credit
Agreement Available Amount" shall equal (i) $1.25 billion less (ii) the total
principal amount outstanding under the Bank Credit Agreement at the date of
calculation.

     Bankruptcy. The occurrence of any of the following: (i) a Partner or its
Guarantor shall file a voluntary petition in bankruptcy or shall be adjudicated
a bankrupt or insolvent, or shall file any petition or answer or consent seeking
any reorganization, arrangement, composition, readjustment, liquidation,
dissolution or similar relief for itself under any present or future applicable
federal, state or other statute or law relating to bankruptcy, insolvency, or
other relief for debtors, or shall seek or consent to or acquiesce in the
appointment of any trustee, receiver, conservator or liquidator of such Partner
or its Guarantor or of all or any substantial part of its properties or its
Units (the term "acquiesce," as used in this definition, includes the failure to
file a petition or motion to vacate or discharge any order, judgment or decree
within ten Business Days after entry of such order, judgment or decree); (ii) a
court of competent jurisdiction shall enter an order, judgment or decree
approving a petition filed against any Partner or its Guarantor seeking a
reorganization, arrangement, composition, readjustment, liquidation, dissolution
or similar relief under the present or any future federal bankruptcy act, or any
other present or future applicable federal, state or other statute or law
relating to bankruptcy, insolvency, or other relief for debtors, and such
Partner or its Guarantor shall acquiesce in the entry of such order, judgment or
decree or such other order, judgment or decree shall remain unvacated and
unstayed for an aggregate of 60 days (whether or not consecutive) from the date
of entry thereof, or any trustee, receiver, conservator or liquidator of such
Partner or its Guarantor or of all or any substantial part of its property or
its Units shall be appointed without the consent or acquiescence of such Partner
or its Guarantor and such appointment shall remain unvacated and unstayed for an
aggregate of 60 days (whether or not consecutive); (iii) a Partner or its
Guarantor shall admit




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<PAGE>



in writing its inability to pay its debts as they mature; (iv) a Partner or its
Guarantor shall give notice to any governmental body of insolvency or pending
insolvency, or suspension or pending suspension of operations; or (v) a Partner
or its Guarantor shall make an assignment for the benefit of creditors or take
any other similar action for the protection or benefit of creditors.

     Book Value. With respect to any asset of the Partnership, the asset's
adjusted basis as of the relevant date for federal income tax purposes, except
as follows:

               (i) The initial aggregate Book Value of all of the assets of the
        Partnership as of the Initial Closing Date shall be equal to the sum of
        (A) the beginning aggregate Capital Accounts of the Partners immediately
        after the Initial Closing Date, and (B) the aggregate amount of all
        liabilities of the Partnership for federal income tax purposes
        immediately after the Initial Closing Date.

               (ii) The initial Book Value of any asset contributed by a Partner
        to the Partnership after the Initial Closing Date shall be the gross
        fair market value of such asset, which shall be equal to the amount
        credited to such Partner's Capital Account for such contribution
        (increased by the amount of any liabilities which the Partnership
        assumes or takes subject to).

               (iii) The Book Values of all Partnership assets (including
        intangible assets such as goodwill) shall be adjusted (at the election
        of the Partnership Governance Committee) to equal their respective gross
        fair market values upon the occurrence of any of the events described in
        Regulation 'SS'1.704-1(b)(2)(iv)(f)(5).

               (iv) The Book Value of any asset distributed by the Partnership
        to a Partner shall be equal to the gross fair market value of such asset
        on the date of the distribution.

               (v) The Book Value of any Partnership asset with respect to which
        an adjustment to tax basis has occurred by reason of the application of
        Section 734(b) or 754(b) of the Code shall be adjusted to the extent
        such adjustment to tax basis is taken into account pursuant to
        Regulation 'SS'1.704-1(b)(2)(iv)(m).

               (vi) If the Book Value of an asset is not equal to its adjusted
        tax basis for federal income tax purposes, such Book Value shall be
        adjusted by the Depreciation taken into account with respect to such
        asset for purposes of computing Profits and Losses and other items
        allocated pursuant to Section 4.1.

The foregoing definition of Book Value is intended to comply with the provisions
of Regulation 'SS'1.704-1(b)(2)(iv) and shall be interpreted and applied
consistently therewith. Any determinations of "gross fair market value" in this
definition of Book Value shall be made by the Partnership Governance Committee.

     Business Day. Any day other than a Saturday, Sunday or other day on which
banks are closed in New York City, New York; provided, however, that for
purposes of the definitions of "Interest Period" and "LIBOR Rate," "Business
Day" shall mean a day of the year on which banks are not required or authorized
to close in Houston, Texas and on which commercial banks are open for
international business (including dealings for dollar deposits) in the London
interbank market.




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<PAGE>



     Business Opportunity.  See Section 9.3(c).

     Capital  Account. The separate capital account established and maintained 
by the Partnership for each Partner, as contemplated by Section 2.

     Capital Expenditure Budget. See Section 8.2(d).

     CEO. See Section 7.1(b).

     Claim. See Section 13.2(c).

     Code. The Internal Revenue Code of 1986, as amended and in effect from
time to time and any successor thereto.

     Competing Opportunity. See Section 9.3(c).

     Confidential Information. All confidential documents and information
(including, without limitation, confidential commercial information and
information with respect to customers, trade secrets and proprietary
technologies or processes and the design and development of new products or
services) concerning the Partnership, the Partners or their Affiliates,
furnished to a Partner in connection with the transactions leading up to and
contemplated by this Agreement and the operation of the Partnership, except to
the extent that such information (i) is or becomes generally available to and
known by the public or the petrochemical industry (other than as a result of an
unpermitted disclosure directly or indirectly by the Partnership or a Partner),
(ii) is or becomes available to a Partner on a nonconfidential basis from a
source other than the Partnership or a Partner; provided, however, that such
source is not and was not bound by a confidentiality agreement with, or other
obligation of secrecy to, the Partnership or the other Partner, (iii) has
already been or is hereafter independently acquired or developed by a Partner
without violating any confidentiality agreement with or other obligation of
secrecy to the Partnership or another Partner or (iv) is otherwise generated by
the Partnership with the intention that it not be held as confidential.

     Conflict Circumstance. Any transaction or dealing between the Partnership
(or any Wholly Owned Subsidiary) and a General Partner (the "Conflicted General
Partner") or any of its Affiliates pursuant to any agreement (including this
Agreement or any other Related Agreements) or otherwise, including action to be
taken by the Partnership pursuant to Section 9.3(c) or (d) or 13.3(b); provided,
however, that a Conflict Circumstance shall cease to exist if and when the third
party with which the transaction or dealing exists shall cease to be an
Affiliate of a General Partner.

     Conflicted General Partner. As defined in the definition of "Conflict
Circumstance."

     Contributed Business. As defined in each of the Contribution Agreements.

     Contribution Agreement. In the case of Lyondell LP and Lyondell GP, the
Contribution Agreement shall mean the Asset Contribution Agreement dated
December 1, 1997, between the Partnership, Lyondell and Lyondell LP. In the case
of Millennium LP and Millennium GP, the Contribution Agreement shall mean the
Asset Contribution Agreement dated December 1, 1997, between the Partnership,
Millennium Petrochemicals and Millennium LP. In the case of





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<PAGE>


Occidental LP1, Occidental LP2 and Occidental GP, the Contribution Agreement
shall mean the Agreement and Plan of Merger and Asset Contribution dated as of
the date of this Agreement between the Partnership, Oxy Petrochemicals,
Occidental LP1, Occidental LP2 and Occidental GP.

     Damages. With respect to a Person in connection with a Default, any and all
obligations (including all obligations to take an affirmative or curative act),
liabilities, damages (including damages arising out of any breach of any
representation or warranty, damages related to investigations, proceedings,
audits, the interruption of the Partnership's business, restrictions upon the
use of, or adverse impact on, the Assets or the Partnership's business, or the
interruption, breach or termination of any Related Agreements or other
agreements, including any lost profits attributable thereto), fines, penalties,
deficiencies, losses, judgments, settlements, costs and expenses (including
costs and expenses incurred in connection with performing obligations, bonding
and appellate costs and attorneys', accountants', engineers', health, safety,
environmental and other consultants' and investigators' fees and disbursements,
liquidating, selling or offering for sale the Partnership's business and assets
or winding up the Partnership's business, or other payments in respect of such
payments) suffered or incurred by such Person that arise out of or relate to
such Default, regardless of whether any of the foregoing are foreseeable,
unforeseeable, matured or unmatured, existing or contingent as of the date of
such Default. "Damages" also shall include, if and to the extent interest is not
already included therein under applicable law or other provisions hereof and
subject to Section 13.20, interest on amounts actually due until payment thereof
is made at a rate per annum equal to the rate set forth in Section 13.19(b).
"Damages" shall not include any punitive, exemplary, special or other similar
damages.

     Deadlock Notice. See Section 8.5.

     Default. See Section 11.1.

     Default Date. See Section 11.1.

     Defaulting Partners. Lyondell GP and Lyondell LP, in the case of a Default
by Lyondell GP, Lyondell LP or their Guarantor; Millennium GP and Millennium LP,
in the case of a Default by Millennium GP, Millennium LP or their Guarantor; and
Occidental GP, Occidental LP1 and Occidental LP2, in the case of a Default by
Occidental GP, Occidental LP1, Occidental LP2 or their Guarantor.

     Depreciation. For each fiscal year or part thereof, an amount equal to the
depreciation, amortization, or other cost recovery deduction allowable for
federal income tax purposes with respect to an asset for such year or other
period, except that if the Book Value of an asset differs from its adjusted
basis for federal income tax purposes at the beginning of such year,
Depreciation shall be (i) an amount which bears the same ratio to such Book
Value as the federal income tax depreciation, amortization or other cost
recovery deduction for such year bears to such adjusted tax basis, or, (ii) if
the federal income tax depreciation, amortization or other cost recovery
deduction for such year is equal to zero, an amount determined with reference to
such Book Value using a reasonable method selected by the Tax Matters Partner.

     Dispute Notice. See Appendix D.




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<PAGE>


     Disputing Partner. See Appendix D.

     Executive Officers. See Section 7.1(b).

     Expense. See Section 13.3(a).

     Fair Market Value. "Fair Market Value" with respect to the Partnership
shall mean the Asset Fair Market Value of all of the Partnership's assets
decreased by the fair value of all its liabilities, as of the most recently
ended fiscal quarter. "Fair Market Value" with respect to a Related Business
shall mean the Asset Fair Market Value of all the assets of such Related
Business decreased by the fair value of all its liabilities, as of the most
recently ended fiscal quarter. In either case, the following shall apply to the
determination of Fair Market Value:

               (i) The General Partners shall first attempt to agree on such
        value, which if agreed to shall be the Fair Market Value.

               (ii) If the General Partners are unable to agree within 20 days
        of the first written notice from one General Partner to the others
        proposing an amount to be the Fair Market Value (the "Notice"), then if
        requested by any General Partner, each General Partner shall (at its own
        cost) cause an independent, qualified appraiser to deliver a written
        appraisal of its determination of the Fair Market Value within 50 days
        of the Notice. If both of the two lowest appraised values are greater
        than or equal to 90% of the highest appraised value, then the middle of
        the three appraised values shall be the Fair Market Value.

               (iii) If either of the two lowest appraised values are lower than
        90% of the highest appraised value, then the General Partners shall
        jointly appoint a Neutral within 20 days of the delivery of both such
        appraisals. If the General Partners have been unable to agree upon such
        appointment within such 20 days, then such Neutral shall upon the
        application of any General Partner be appointed within 10 days of the
        filing of such application by the Center for Public Resources, or if
        such appointment is not so made promptly then promptly thereafter by the
        American Arbitration Association in Philadelphia, Pennsylvania, or if
        such appointment is not so made promptly then promptly thereafter by the
        senior United States District Court judge sitting in Wilmington,
        Delaware. The fees and expenses of the Neutral shall be paid equally by
        the Partners.

               (iv) The Neutral shall, within 30 days of the appointment of the
        Neutral, determine which of the three appraised values (without in any
        way modifying or compromising between the three appraised values) is
        closest to the fair market value of the enterprise's assets as
        determined by the Neutral, and that appraised value shall be the Fair
        Market Value.

     Fault. Any act or omission of a Partner, its Affiliates or any of their
respective officers, directors or employees (acting in their capacities as such)
that constitutes or results from intentional misconduct, criminal intent or
gross negligence.

     Finally Determined. Determined by any final, nonappealable judicial
order or pursuant to a binding alternative dispute resolution procedure.





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<PAGE>


     Funding Notice. See Section 2.4.

     GAAP. United States generally accepted accounting principles, as in effect
from time to time.

     General Partners. Each Person who executes this Agreement and who is hereby
admitted to the Partnership as a general partner of the Partnership, unless such
General Partner ceases to be a General Partner hereunder or sells, transfers,
forfeits or otherwise disposes of its Units and is replaced by a Substitute
General Partner in accordance with this Agreement and the Act, and each Person
that becomes a Substitute General Partner, if any, of the Partnership as
provided herein, in such Person's capacity as a general partner of the
Partnership.

     GPA. See Section 14.1(b).

     Guarantor. Lyondell Petrochemical Company, with respect to Lyondell GP and
Lyondell LP; Millennium Chemicals Inc., with respect to Millennium GP and
Millennium LP; Occidental Chemical Corporation and Oxy CH Corporation, with
respect to Occidental GP, Occidental LP1 and Occidental LP2; and any successor
or additional guarantor party to an agreement substantially in the form of the
Amended and Restated Parent Agreement and entered into in accordance with
Section 10.

     Highest Lawful Rate. The maximum rate of interest, if any, that may be
charged to any person under all Applicable Usury Laws on any principal balance
from time to time outstanding pursuant to this Agreement.

     HSE Law. "HSE Law," as defined in Section 1 of the Contribution Agreement.

     Indemnified Party. See Section 13.2(c).

     Indemnifying Party. See Section 13.2(c).

     Interest Period. The period commencing on the date of this Agreement and
ending one month thereafter and, thereafter, each subsequent period commencing
on the last day of the immediately preceding Interest Period and ending one
month thereafter; provided, however, that whenever the last day of any Interest
Period would otherwise occur on a day other than a Business Day, the last day of
such Interest Period shall be extended to occur on the next succeeding Business
Day.

     Initial Agreement. See first WHEREAS clause.

     Initial Assets. "Assets," as defined in Section 1 of the applicable
Contribution Agreement.

     Initial Closing Date. December 1, 1997, the date the closing under the
Initial Master Transaction Agreement took place.

     Initial Master Transaction Agreement. The Master Transaction Agreement,
dated July 25, 1997, as amended, between Lyondell and Millennium, providing for
the execution of various agreements concerning the Partnership and the Initial
Assets.




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<PAGE>



     Initial Notice. See Section 10.2(a).

     Initial Partners. See first WHEREAS clause.

     Initial Related Agreements. The agreements defined as "Related Agreements"
in the Initial Master Transaction Agreement (other than the Partnership
Agreement), as such agreements may be amended from time to time after the
Initial Closing Date.

     IRS.  Internal Revenue Service.

     Lake Charles Facility. The property that is the subject of and leased
pursuant to the Lease.

     LC Partnership. See Section 14.1(b).

     Lease. The Lease Agreement, dated May 15, 1998, between OCC, as lessor,
and Occidental LP1, as lessee.

     Liability. Any loss, claim, damages, fine, penalty, assessment by public
agencies, settlement, cost or expense (including costs of investigation, defense
and attorneys' fees) or other liability.

     LIBOR Rate. For any Interest Period, the rate per annum (rounded upwards,
if necessary, to the nearest 1/16th of 1%) published in the Wall Street Journal
as the London Interbank Offered Rate for a one month period as of two Business
Days prior to the first day of such Interest Period; provided if no such rate
appears the rate shall be as shown on page 3750 of the Dow Jones & Company
Telerate screen or any successor page as the composite offered rate for London
interbank deposits with a period equal to one month, as shown under the heading
"USD" as of 11:00 a.m. (London time) two Business Days prior to the first day of
such Interest Period; provided that if no such rate appears, the rate shall be
the rate per annum equal to the arithmetic mean (which shall be rounded upward
to the nearest 1/16 of 1% per annum) of which U.S. dollar deposits with an
Interest Period equal to one month are displayed on page "LIBO" of the Reuters
Monitor Money Rates Service or such other page as may replace the LIBO page on
that service for the purpose of displaying London interbank offered rates of
major banks at or about 11:00 a.m. (London time) two Business Days prior to the
first day of such Interest Period.

     Limited Partner. Each Person who executes this Agreement and who is hereby
admitted to the Partnership as a limited partner of the Partnership, unless such
Limited Partner ceases to be a Limited Partner hereunder or sells, transfers,
forfeits or otherwise disposes of its Units and is replaced by a Substitute
Limited Partner in accordance with this Agreement and the Act, and each Person
that becomes a Substitute Limited Partner, if any, of the Partnership as
provided herein, in such Person's capacity as a limited partner of the
Partnership.

     Limited Partners Pro Rata. From or to the Limited Partners in the ratio 
of the Units owned by each.

     Liquidation. See Section 11.4.

     Losses. See definition of "Profits and Losses."




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<PAGE>


     Lyondell. See first WHEREAS clause.

     Lyondell Assumed Debt. Debt issued by Lyondell having an aggregate
principal amount of $745 million, as specified in the Contribution Agreement
with respect to Lyondell.

     Lyondell GP. See introductory paragraph to this Agreement.

     Lyondell LP. See introductory paragraph to this Agreement.

     Lyondell  Note. The promissory note dated December 1, 1997, in the
amount of $345 million payable by Lyondell LP to the Partnership.

     Maximum Amount. The maximum nonusurious amount of interest that may be
lawfully contracted for, charged or received by any person in connection with
any indebtedness arising under this Agreement under all Applicable Usury Laws.

     Millennium. See first WHEREAS clause.

     Millennium America. Millennium America Inc., a Delaware corporation.

     Millennium America Guarantee. See Section 8.6(c).

     Millennium America Guaranteed Debt. The portion, if any, of the debt
outstanding under the Bank Credit Agreement and the portion, if any, of any debt
that refinances the debt outstanding under the Bank Credit Agreement or any
subsequent refinancing thereof (in any case, not to exceed a guarantee of $750
million principal amount), in each case to the extent such debt is guaranteed by
Millennium America, or an Affiliate thereof, as contemplated by Section 8.6(c).

     Millennium GP. See introductory paragraph to this Agreement.

     Millennium LP. See introductory paragraph to this Agreement.

     Neutral. A neutral Person acceptable to all of the appointing Partners 
and not affiliated with any of the Partners, except where otherwise
specifically provided.

     No Rebuilding Termination. A total termination of the Lease pursuant to
Section 12(b) or 13 thereof.

     Nonconflicted General Partner. With respect to any Conflict Circumstance,
any General Partner that is not the Conflicted General Partner with
respect thereto.

     Non-Defaulting Partners. The Partners other than the Defaulting Partners.

     OCC. Occidental Chemical Corporation, a New York corporation.

     Occidental. See third WHEREAS clause.

     Occidental GP. See introductory paragraph to this Agreement.




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<PAGE>



     Occidental LP1. See introductory paragraph to this Agreement.

     Occidental LP2. See introductory paragraph to this Agreement.

     Occidental Partners. See third WHEREAS clause.

     Offeree Partners. See Section 10.2(a).

     Operating Budget. See Section 8.2(c).

     Oxy Guaranteed Debt. The $419,700,000 drawdown under the Bank Credit
Agreement pursuant to Section 8.6(a) and the portion, if any, of any debt that
refinances the $419,700,000 drawdown under the Bank Credit Agreement or any
subsequent refinancing thereof (in any case, not to exceed a guarantee of
$419,700,000 principal amount), in each case to the extent such debt is
guaranteed by Occidental Chemical Corporation, a New York corporation, or an
Affiliate thereof and the proceeds thereof have been distributed to Occidental
LP2 pursuant to Section 3.1(g) and, until such amount has been so drawn and
distributed, "Oxy Guaranteed Debt" shall mean the Oxy Note to the extent the
obligations thereunder are indemnified by OCC pursuant to the Amended and
Restated Indemnity Agreement.

     Oxy Note. The Promissory Note dated May 15, 1998 in the principal amount of
$419,700,000 payable by the Partnership to Occidental LP2.

     Oxy Petrochemicals. Oxy Petrochemicals Inc., a Delaware corporation.

     Partners. The General Partners and the Limited Partners on the date of this
Agreement until such Person ceases to be a partner of the Partnership.

     Partners Pro Rata. From or to all Partners in the ratio of the Units 
owned by each.

     Partnership. Equistar Chemicals, LP, a Delaware limited partnership, the
limited partnership formed and continued under the Act and this Agreement.

     Partnership Governance Committee. See Section 6.1.

     Partnership Governance Committee Action. See Section 6.1.

     Payment Amount. See Section 14.3.

     Proceeds. The Insurance Proceeds, the Self-Insurance Proceeds and the
Condemnation Proceeds (each as defined in the Lease), to the extent actually
received by the lessor under the Lease pursuant to the Lease.

     Profits and Losses. For each applicable period, the Partnership's taxable
income or loss for such period determined in accordance with Section 703(a) of
the Code (for this purpose, all items of income, gain, loss or deduction
required to be stated separately pursuant to Section 703(a)(1) of the Code shall
be included in taxable income or loss) with the following adjustments:




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<PAGE>



               (i) Any income of the Partnership that is exempt from federal
        income tax and not otherwise taken in account in computing Profits or
        Losses pursuant to this definition shall be added to such taxable income
        or loss.

               (ii) Any expenditures of the Partnership described in Section
        705(a)(2)(B) of the Code or treated as such pursuant to Regulation
        'SS'1.704-1(b)(2)(iv)(i) and not otherwise taken in account in
        computing Profits or Losses pursuant to this definition shall be
        subtracted from
        such taxable income or loss.

               (iii) Depreciation for such period shall be taken into account in
        lieu of the depreciation, amortization and other cost recovery
        deductions taken into account in computing such taxable income or loss.

               (iv) Gain or loss resulting from any disposition of Partnership
        property with respect to which gain or loss is recognized for federal
        income tax purposes shall be computed with reference to the Book Value
        of the property disposed of, rather than the adjusted tax basis of such
        property.

               (v) If any property is distributed in kind to any Partner, the
        difference between its fair market value and its Book Value at the time
        of distribution shall be treated as Profit or Loss, as the case may be,
        recognized by the Partnership.

               (vi) The amount of any adjustment to the Book Value of any
        Partnership asset pursuant to clause (iii) of the definition of Book
        Value herein shall be taken into account as Profit or Loss from the
        disposition of such asset.

     Percentage  Interest. The percentage determined by dividing the number of
Units owned by a Partner by the total number of outstanding Units.

     Person. Any natural person or any corporation, limited liability company,
partnership, joint venture, association, trust or other entity.

     Pledge. To mortgage, pledge, encumber or create or suffer to exist any
pledge, lien or encumbrance upon or security interest in. Such defined term is
used in this Agreement as both a noun and a verb.

     Pro Rata. In the ratio of the Units owned by a Partner to the total number
of applicable Units.

     Proposing Partner. See Section 9.3(c).

     Reconstituted Basis. As to each Partnership property, the Partnership's
basis in such property immediately after it is contributed to the Partnership
reduced by any depreciation and other deductions allocated to a Partner pursuant
to Section 4.4(b)(i)(a).

     Regulations. The income tax regulations promulgated by Department of the
Treasury and in effect from time to time.




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<PAGE>



     Related Agreements. The Initial Related Agreements and the Occidental
Related Agreements.

     Related Business. Any business related to (i) the manufacturing, marketing
and distribution of Specified Petrochemicals; (ii) the purchasing, processing
and disposing of feedstocks in connection with the manufacturing, marketing and
distributing of Specified Petrochemicals; and (iii) any research and development
in connection with the foregoing.

     Related Persons. See Section 13.1.

     Representative. See Section 6.4(a).

     SEC. Securities and Exchange Commission.

     Second Master Transaction Agreement. See third WHEREAS clause.

     Selling Partners. See Section 10.2(a).

     Specified Petrochemicals.

     (i) Olefins and olefins coproducts consisting of: ethylene, propylene,
butadiene, and mixed butylenes; aromatics and gasoline blending components
(benzene, toluene, MTBE, alkylate, pyrolysis gasolines); mixed C5 hydrocarbons;
resin formers (dicyclopentadiene, isoprene, piperylenes, resin oil); pyrolysis
liquid fuel products (pyrolysis gas oil, pyrolysis fuel oil);

     (ii) Polyolefins consisting of: low-density, linear low-density, and
high-density polyethylene; polypropylene; ethylene/propylene copolymers;
rotomolding and polymeric powders; wire and cable resins; adhesive tie layers;
hot melt adhesive resins; colors and concentrates; fuel additives;

     (iii) Ethyl alcohol and ethyl ether; and

     (iv) Ethylene oxide, ethylene glycol and derivatives thereof.

provided, however that the definition of Specified Petrochemicals shall in no
event include polyvinyl chloride or resins derived from phenol compounds or
dicyclopentadiene.

     Specified Petrochemicals Businesses. The businesses related to Specified
Petrochemicals.

     Strategic Plan. See Section 8.1.

     Substitute General Partner. A Person who is admitted as a General Partner
to the Partnership in place of and with all the rights of a General Partner.

     Substitute Limited Partner. A Person who is admitted as a Limited Partner
to the Partnership in place of and with all the rights of a Limited Partner.

     Taxes. All taxes, charges, fees, levies or other assessments imposed by any
taxing authority, including, but not limited to, income, gross receipts, excise,
property, sales, use,




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<PAGE>



transfer, payroll, license, ad valorem, value added, withholding, social
security, national insurance (or other similar contributions or payments),
franchise, severance and stamp taxes (including any interest, fines, penalties
or additions attributable to, or imposed on or with respect to, any such taxes,
charges, fees, levies or other assessments) and "Tax Return" means any return,
report, information return or other document (including any related or
supporting information) with respect to Taxes.

     Tax Matters Partner. Lyondell GP.

     Third Party Claim. Any allegation, claim, civil, criminal or other action,
proceeding, charge or prosecution brought by any Person other than the
Partnership, any Partner or any Affiliate of a Partner.

     Transfer. To sell, assign or otherwise in any manner dispose of, whether by
act, deed, merger, consolidation, conversion or otherwise. Such defined term is
used in this Agreement as both a noun and a verb.

     Unit. A unit representing a partnership interest in the Partnership.

     Wholly Owned Affiliate. As to any Person, an Affiliate of such Person all
of the equity interests of which are owned, directly or indirectly, by a
Partner, by another Wholly Owned Affiliate of such Person or by the ultimate
parent entity thereof.

     Wholly Owned Subsidiary. As to any Person, a subsidiary of such Person all
of the equity interests of which are owned, directly or indirectly, by such
Person.

                                   APPENDIX B

                        TO LIMITED PARTNERSHIP AGREEMENT
                        --------------------------------

                  PARTNERSHIP FINANCIAL STATEMENTS AND REPORTS
                  --------------------------------------------
<TABLE>
<CAPTION>

Item & Frequency                                                       Due Dates
- ----------------                                                       ---------
Monthly:
- --------
<S>                                                      <C>


Income Statement - current period and year-to-date       10th work day following month-end
Balance Sheet - current period                           10th work day following month-end
Cash Flow Statement - current period and year-to-date    10th work day following month-end
Schedule of Income Allocation - preliminary              5th work day following month-end
Schedule of Income Allocation - final                    10th work day following month-end
Calculation of Distribution of Available Net Operating
 Cash - final                                            15th work day following month-end
Results of Operations Analysis                           10th work day following month-end

</TABLE>



<PAGE>
<PAGE>


<TABLE>
<CAPTION>
   
Quarterly:
- ----------
  <S>                                                    <C>
   
   Analysis for Investor Relations and Form 10-Q
     disclosures:
      -   Results of Operations                           15th work day following quarter-end
      -   Cash Flow                                       15th work day following quarter-end
      -   Sales Variances                                 15th work day following quarter-end
      -   Capital Expenditures                            15th work day following quarter-end
      -   Intercompany Transactions                       15th work day following quarter-end
      -   Volumes                                         15th work day following quarter-end
      -   Prices                                          15th work day following quarter-end
      -   Unusual Items                                   15th work day following quarter-end
Income Statement - current quarter and year-to-date       10th work day following quarter-end
Balance Sheet - current period                            10th work day following quarter-end
Cash Flow Statement - current quarter and year-to-date    10th work day following quarter-end
Estimate of Each Partner's Regular Taxable Income         10th work day following quarter-end
 and Alternative Minimum Taxable Income

</TABLE>


<TABLE>
<CAPTION>

Item & Frequency                                          Due Dates
- ----------------                                          ---------
Annual:
- -------
<S>                                                      <C>
   Analysis for Investor Relations and Form 10-K          15th work day following year-end
      disclosures
      -   Same as quarterly requirements
      -   Plant Capacities
   Audited Financial Statements                           60 days following year-end

</TABLE>

                                   APPENDIX C
                        TO LIMITED PARTNERSHIP AGREEMENT
                        --------------------------------

                               EXECUTIVE OFFICERS
                               ------------------

<TABLE>

<S>                          <C>
Dan F. Smith                 Chief Executive Officer

Eugene R. Allspach           President and Chief Operating Officer

Joseph M. Putz               Senior Vice President, Finance and Administration

Debra L. Starnes             Senior Vice President, Polymers

John R. Beard                Vice President, Manufacturing

Clifton B. Currin, Jr.       Vice President, Supply and Optimization

J. R. Fontenot               Vice President, Engineering

Brian A. Gittings            Vice President, Oxygenated Chemicals

Alan Houlton                 Vice President, Customer Supply Chain

Gerald A. O'Brien            Vice President and Secretary

</TABLE>





<PAGE>
<PAGE>


<TABLE>
<S>                         <C>
Myra J. Perkinson            Vice President, Human Resources

W. Norman Phillips, Jr.      Vice President, Petrochemicals

Kerry F. Williams            Vice President, Research and Development

Jeffrey L. Hemmer            Director, Business Process Improvement

</TABLE>


                                   APPENDIX D

                        TO LIMITED PARTNERSHIP AGREEMENT
                        --------------------------------

                          DISPUTE RESOLUTION PROCEDURES
                          -----------------------------

      (1) Binding and Exclusive Means. Except as otherwise provided in the
Partnership Agreement, the dispute resolution provisions set forth in this
Appendix shall be the binding and exclusive means to resolve all disputes
arising under the Agreement (each a "Dispute").

      (2) Standards and Criteria. In resolving any Dispute, the standards and
criteria for resolving such Dispute shall, unless the Partners involved in the
Dispute in their discretion jointly stipulate otherwise, be as set forth in
Appendix 1 to this Appendix.

      (3) ADR and Binding Arbitration Procedures. If a Dispute arises, the
following procedures shall be implemented (with references to "Partners" meaning
the Partners involved in the Dispute):

      (a) Any Partner may at any time invoke the dispute resolution procedures
set forth in this Appendix as to any Dispute by providing written notice of such
action to the Secretary of the Partnership, who within five Business Days after
such notice shall schedule a meeting to be held in Houston, Texas between the
Partners. The Partners' meeting shall occur within 10 Business Days after notice
of the meeting is delivered to the Partners. The meeting shall be attended by
representatives of each Partner having decision-making authority regarding the
Dispute as well as the dispute resolution process and who shall attempt in a
commercially reasonable manner to negotiate a resolution of the Dispute.

      (b) The representatives of the Partners shall cooperate in a commercially
reasonable manner and shall explore whether techniques such as mediation,
minitrials, mock trials or other techniques of alternative dispute resolution
might be useful. In the event that a technique of alternative dispute resolution
is so agreed upon, a specific timetable and completion date for its
implementation shall also be agreed upon. The representatives will continue to
meet and discuss settlement until the date (the "Interim Decision Date") that is
the earliest to occur of the following events: (i) an agreement shall be reached
by the Partners resolving the Dispute; (ii) one of the Partners shall determine
and notify the other Partners in writing that no agreement resolving the Dispute
is likely to be reached; (iii) if a technique of alternative dispute resolution
is agreed upon, the completion date therefor shall occur without the Partners
having resolved the Dispute; or (iv) if another technique of alternative dispute
resolution is not agreed upon, two full meeting days (or such other time period
as may be agreed upon) shall expire without the Partners having resolved the
Dispute.




<PAGE>
<PAGE>


      (c) If, as of the Interim Decision Date, the Partners have not succeeded
in negotiating a resolution of the Dispute pursuant to subsection (b), the
Partners shall proceed under subsections (d), (e) and (f).

      (d) After satisfying the requirements above, such Dispute shall be
submitted to mandatory and binding arbitration at the election of any Partner
involved in the Dispute (the "Disputing Partner"). The arbitration shall be
subject to the Federal Arbitration Act as supplemented by the conditions set
forth in this Appendix. The arbitration shall be conducted in accordance with
the Commercial Arbitration Rules of the American Arbitration Association in
effect on the date the notice of arbitration is served, other than as
specifically modified herein. In the absence of an agreement to the contrary,
the arbitration shall be held in Houston, Texas. The Arbitrator (as defined
below) will allow reasonable discovery in the forms permitted by the Federal
Rules of Civil Procedure, to the extent consistent with the purpose of the
arbitration. During the pendency of the Dispute, each Partner shall make
available to the Arbitrator and the other Partners all books, records and other
information within its control requested by the other Partners or the Arbitrator
subject to the confidentiality provisions contained herein, and provided that no
such access shall waive or preclude any objection to such production based on
any privilege recognized by law. Recognizing the express desire of the Partners
for an expeditious means of dispute resolution, the Arbitrator may limit the
scope of discovery between the Partners as may be reasonable under the
circumstances. In deciding the substance of the Partners' claims, the laws of
the State of Delaware shall govern the construction, interpretation and effect
of this Agreement (including this Appendix) without giving effect to any
conflict of law principles. The arbitration hearing shall be commenced promptly
and conducted expeditiously, with each Partner involved in the Dispute being
allocated an equal amount of time for the presentation of its case. Unless
otherwise agreed to by the Partners, the arbitration hearing shall be conducted
on consecutive days. Time is of the essence in the arbitration proceeding, and
the Arbitrator shall have the right and authority to issue monetary sanctions
against any of the Partners if, upon a showing of good cause, that Partner is
unreasonably delaying the proceeding. To the fullest extent permitted by law,
the arbitration proceedings and award shall be maintained in confidence by the
Arbitrator and the Partners.

      (e) The Disputing Partner shall notify the American Arbitration
Association ("AAA") and the other Partners in writing describing in reasonable
detail the nature of the Dispute (the "Dispute Notice"). The arbitrator (the
"Arbitrator") shall be selected within 15 days of the date of the Dispute Notice
by all of the Partners from the members of a panel of arbitrators of the AAA or,
if the AAA fails or refuses to provide a list of potential arbitrators, of the
Center for Public Resources and shall be experienced in commercial arbitration.
In the event that the Partners are unable to agree on the selection of the
Arbitrator, the AAA shall select the Arbitrator, using the criteria set forth in
this Appendix, within 30 days of the date of the Dispute Notice. In the event
that the Arbitrator is unable to serve, his or her replacement will be selected
in the same manner as the Arbitrator to be replaced. The Arbitrator shall be
neutral. The Arbitrator shall have the authority to assess the costs and
expenses of the arbitration proceeding (including the arbitrators', and
attorneys' fees and expenses) against any or all Partners.

      (f) The Arbitrator shall decide all Disputes and all substantive and
procedural issues related thereto, and shall enforce this Agreement in
accordance with its terms. Without limiting the generality of the previous
sentence, the Arbitrator shall have the authority to issue injunctive relief;
however, the Arbitrator shall not have any power or authority to (i) award
consequential,




<PAGE>
<PAGE>



incidental, indirect or punitive damages or (ii) amend this Agreement. The
Arbitrator shall render the arbitration award, in writing, within 20 days
following the completion of the arbitration hearing, and shall set forth the
reasons for the award. In the event that the Arbitrator awards monetary damages
in favor of either party, the Arbitrator must certify in the award that no
indirect, consequential, incidental, indirect or punitive damages are included
in such award. If the Arbitrator's decision results in a monetary award, the
interest to be granted on such award, if any, and the rate of such interest
shall be determined by the Arbitrator in his or her discretion. The arbitration
award shall be final and binding on the Partners, and judgment thereon may be
entered in any court of competent jurisdiction, and may not be appealed except
to the extent permitted by the Federal Arbitration Act.

      (4) Continuation of Business. Notwithstanding the existence of any Dispute
or the pendency of any procedures pursuant to this Appendix, the Partners agree
and undertake that all payments not in dispute shall continue to be made and all
obligations not in dispute shall continue to be performed.

                            APPENDIX 1 TO APPENDIX D
                            ------------------------

      (a) First priority shall be given to maximizing the consistency of the
resolution of the Dispute with the satisfaction of all express obligations of
the Partners and their Affiliates as set forth in the Partnership Agreement.

      (b) Second priority shall be given to resolution of the Dispute in a
manner which best achieves the objectives of the business activities and
arrangements under the Partnership Agreement and the Related Agreements and
permits the Partners to realize the benefits intended to be afforded thereby.

      (c) Third priority shall be given to such other matters, if any, as the
Partners or the Arbitrator shall determine to be appropriate under the
circumstances.

                                   APPENDIX E

                        TO LIMITED PARTNERSHIP AGREEMENT
                        --------------------------------

                        DIVISION OF PARTNERSHIP BUSINESS
                        --------------------------------

      If the Partnership is dissolved and Section 12.2(e) applies to the winding
up of the affairs of the Partnership, the Partnership properties shall, to the
extent legally and contractually feasible and, after satisfaction of the
liabilities of the Partnership (whether by payment or reasonable provision for
payment), be distributed in kind to the Partners in accordance with a division
(the "Division") of the properties. The Division shall be implemented by
dividing the properties, to the extent feasible, in accordance with the
following priorities and principles:

A.    First priority shall be given to maximizing the consistency of the
      Division with a division of the Partnership properties that allocates to
      each Partner (subject to such Partner's Percentage Interest of the
      Partnership's liabilities) Partnership properties in proportion to the
      value of such Partner's Percentage Interest in the Partnership's business
      taking into account the aggregate Asset Fair Market Value of the
      Partnership's properties and the





<PAGE>
<PAGE>


      value and benefits afforded to such Partner under the Partnership
      Agreement and the other Related Agreements.

B.    Second priority shall be given to the allocation of the Partnership's
      various assets and business units between the Partners so as to maximize
      the aggregate going concern value of the respective assets and business
      units allocated to each Partner, taking into account, without limitation,
      the potential synergies and efficiencies that are reasonably achievable in
      connection with the operation of such allocated assets and business units
      as an independent business entity.

C.    Third priority shall be given to maximizing the consistency of the
      Division with the nature and quality of the Assets and Contributed
      Business originally transferred to the Partnership by the respective
      Partners or their Affiliates.

      Absent an agreement by the Partners or direction by the Neutral as to both
(i) how the Partners should allocate Partnership debt and (ii) the process for
relieving each Partner of liability for that portion of Partnership debt
allocated to the other Partner, the Partners (A) shall be jointly and severally
liable to the holders of all Partnership debt and (B) as between the Partners,
each Partner shall be obligated to pay to holders of the debt its Percentage
Interest of all payments of principal and interest on Partnership Debt.
Notwithstanding the foregoing, the Neutral shall be entitled to direct, and any
Partner may propose, an alternative allocation of Partnership debt in any
circumstance where such alternative allocation is reasonably likely to result in
a Division that is more consistent with the priorities outlined above.

      For purposes of this Appendix E, Lyondell GP and Lyondell LP shall be
treated as if they were a single Partner, Millennium GP and Millennium LP shall
be treated as if they were a single Partner and Occidental GP, Occidental LP1
and Occidental LP2 shall be treated as if they were a single Partner.

      The Partners shall attempt to agree on a plan for a mutually acceptable
Division. If they are unable to so agree after 60 days following the occurrence
of the dissolution, a Neutral shall be appointed in accordance with Appendix D
and each Partner shall submit to the Neutral a written proposal for a Division.
The Neutral shall decide which of the three proposals (without in any way
modifying or compromising between the three proposals) more closely follows the
priorities and principles set forth above, and the proposal so chosen shall
thereupon be binding upon all Partners and shall be promptly implemented under
the direction of the Neutral. The Neutral shall be entitled to employ (at the
expense of the Partnership) such financial and accounting advisors and legal
counsel as he or she shall select, provided that no such advisor or counsel
shall have any affiliation with any Partner.

                                 SCHEDULE 2.3(d)

                     Effective Date Capital Account Balances
                     ---------------------------------------

Column I reflects Capital Accounts after the contributions of the Occidental
Partners on the Effective Date and the Effective Date adjustments to the Capital
Accounts of the Initial Partners, but before the other contributions and
distributions described in Section 2.3(c). Column II indicates the amount of the
contributions and distributions described in 2.3(c) other than accrued interest.
Column III reflects the Capital Accounts if such contributions and distributions
were 




<PAGE>
<PAGE>


made (and accrued interest was paid and distributed) on the Effective Date.
Column IV reflects the number of Units owned by each Partner.

<TABLE>
<CAPTION>


      PARTNER            I                 II                III                   IV
      -------            -                 --                ---                   --
<S>                   <C>               <C>               <C>                    <C> 

Lyondell GP          $   42,451,400                       $   42,451,400              820
Lyondell GP           1,931,768,600     $  148,350,000     2,080,118,600           40,180
                                                                                   ------
                                                                                   41,000

Millennium GP            30,544,300                           30,544,300              590
Millennium GP         1,720,020,000       (223,350,000)    1,496,670,000           28,910
                                                                                   ------
                                                                                   29,500

Occidental GP            15,272,150                           15,272,150              295
Occidental LP1          342,872,650                          342,872,650            6,623
Occidental LP2        1,588,770,000       (419,700,000)    1,169,070,000           22,582
                      -------------      -------------     -------------           ------
                                                                                   29,500

                     $5,671,699,100     $ (494,700,000)   $5,176,999,100
                     ==============     ===============   ==============
</TABLE>


* The difference between Lyondell LP's contribution of $345 million to satisfy
  the Lyondell Note and the distribution to it of $196,650,000 (57%) of the
  proceeds from such note.





<PAGE>



<PAGE>


EXHIBIT 10.37
AMENDED AND RESTATED PARENT AGREEMENT AMONG LYONDELL, THE COMPANY, OCCIDENTAL,
OXY CH CORPORATION, OCCIDENTAL CHEMICAL CORPORATION, AND EQUISTAR

                                                                  EXECUTION COPY




                      AMENDED AND RESTATED PARENT AGREEMENT


                                      AMONG

                        OCCIDENTAL CHEMICAL CORPORATION,

                               OXY CH CORPORATION,

                        OCCIDENTAL PETROLEUM CORPORATION,

                         LYONDELL PETROCHEMICAL COMPANY,

                            MILLENNIUM CHEMICALS INC.

                                       AND

                             EQUISTAR CHEMICALS, LP

                                TABLE OF CONTENTS





                                                                            PAGE







 

<PAGE>
<PAGE>

APPENDICES

Appendix A     List of Related Agreements
Appendix B     Dispute Resolution Procedures

                      AMENDED AND RESTATED PARENT AGREEMENT

    This Amended and Restated Parent Agreement (this "Agreement") is made as of
this 15th day of May, 1998 among Occidental Chemical Corporation, a New York
corporation ("OCC"), Oxy CH Corporation, a California corporation ("Oxy CH"),
Lyondell Petrochemical Company, a Delaware corporation ("Lyondell"), Millennium
Chemicals Inc., a Delaware corporation ("Millennium"), Occidental Petroleum
Corporation, a Delaware corporation ("OPC"), and Equistar Chemicals, LP, a
Delaware limited partnership (the "Partnership," and together with OCC, Oxy CH,
Lyondell, Millennium and OPC, the "Parties").

    WHEREAS, except as provided in Section 3, OCC and Oxy CH, taken together and
jointly and severally, are the "Occidental Parent" for purposes of this
Agreement, and the Occidental Parent (except as provided in Section 3), Lyondell
and Millennium are each a "Parent" for purposes of this Agreement.

    WHEREAS, Lyondell Petrochemical G.P. Inc. ("Lyondell GP") and Lyondell
Petrochemical L.P. Inc. ("Lyondell LP" and, together with Lyondell GP, the
"Lyondell Partner Subs") are both Delaware corporations and direct or indirect
wholly owned subsidiaries of Lyondell.

    WHEREAS, Millennium Petrochemicals GP LLC ("Millennium GP") and Millennium
Petrochemicals LP LLC ("Millennium LP" and, together with Millennium GP, the
"Millennium Partner Subs") are both Delaware limited liability companies and
direct or indirect wholly owned subsidiaries of Millennium.

    WHEREAS, PDG Chemical Inc. ("Occidental GP") and Occidental Petrochem
Partner 2, Inc. ("Occidental LP2") are both Delaware corporations and direct or
indirect wholly owned subsidiaries of Oxy CH; Occidental Petrochem Partner 1,
Inc. ("Occidental LP1" and, together with Occidental GP and Occidental LP2, the
"Occidental Partner Subs") is a Delaware corporation and a wholly owned
subsidiary of OCC; and Oxy CH and OCC are both direct or indirect wholly owned
subsidiaries of OPC.

    WHEREAS, for purposes of this Agreement, the Occidental Partner Subs are the
Partner Subs of the Occidental Parent.

    WHEREAS, pursuant to the terms of the Master Transaction Agreement dated as
of July 25, 1997 between Lyondell and Millennium (the "Initial Master
Transaction Agreement"), the Partnership was formed under the laws of the State
of Delaware pursuant to the Limited Partnership Agreement dated October 10, 1997
(the "Old Partnership Agreement"), with






                                       2




 

<PAGE>
<PAGE>

Lyondell GP and Millennium GP as the general partners and Lyondell LP and
Millennium LP as the limited partners of the Partnership.

    WHEREAS, in connection with the closing of the transactions contemplated by
the Initial Master Transaction Agreement, Lyondell and Millennium entered into
the Parent Agreement with the Partnership dated as of December 1, 1997 (the
"Initial Parent Agreement"), providing for, among other things, certain
guarantees of performance by their respective Affiliated Obligors (as defined
therein) and for certain restrictions on the transfer of their respective
Partner Sub Stock (as defined therein);

    WHEREAS, the Partnership, OPC, Lyondell and Millennium entered into a Master
Transaction Agreement dated May 15, 1998 (the "Second Master Transaction
Agreement"), providing for, among other things, the admission of the Occidental
Partner Subs as partners in the Partnership. The Occidental Partner Subs,
together with any other Affiliate of the Occidental Parent that is a party to
any of the Related Agreements (as defined herein), are referred to herein as the
"Occidental Affiliated Obligors." The Lyondell Partner Subs, together with any
other Affiliate of Lyondell that is a party to any of the Related Agreements,
are referred to herein as the "Lyondell Affiliated Obligors." The Millennium
Partner Subs, together with any other Affiliate of Millennium that is a party to
any of the Related Agreements, are referred to herein as the "Millennium
Affiliated Obligors." The Occidental Affiliated Obligors, the Lyondell
Affiliated Obligors and the Millennium Affiliated Obligors, collectively or
individually as the context may require, are referred to herein as the
"Affiliated Obligors." The Occidental Partner Subs, the Lyondell Partner Subs
and the Millennium Partner Subs, collectively or individually as the context may
require, are referred to herein as the "Partner Subs."

    WHEREAS, in connection with the closing of the transactions effected
pursuant to the Initial Master Transaction Agreement and to be effected in
connection with the closing of the Second Master Transaction Agreement, the
Parents and certain of their respective Affiliates, have entered into or are
entering into various agreements and other legal documents, including the
Amended and Restated Limited Partnership Agreement of the Partnership dated as
of the date of this Agreement (the "Partnership Agreement"), the Agreement and
Plan of Merger and Asset Contribution dated as of the date of this Agreement
(the "Occidental Contribution Agreement") among the Partnership, the Occidental
Partner Subs and Oxy Petrochemicals Inc. ("OPI"), services agreements and other
asset contribution agreements, as applicable (including this Agreement, the
"Related Agreements"), each of which is integrally related to the capitalization
or operations of the Partnership and is listed on Appendix A hereto. The Related
Agreements (other than this Agreement) and any additional agreements that may
from time to time be added to Appendix A hereto by agreement of the Parents, as
they may in the future be amended, supplemented, restated or otherwise modified,
are referred to herein as the "Other Agreements". The Other Agreements to be
entered into in connection with the Second Master Transaction Agreement are
herein called the "Additional Other Agreements".

    WHEREAS, the Parties desire to amend and restate the Initial Parent
Agreement in connection with the admission of the Occidental Partner Subs to the
Partnership and the closing of the other transactions contemplated by the Second
Master Transaction Agreement.




                                       3




 

<PAGE>
<PAGE>

    WHEREAS, this Agreement is essential to the consummation of the closing
pursuant to the Second Master Transaction Agreement and the entering into and
effectiveness of the Additional Other Agreements and each of the parties to such
agreements is relying on this Agreement in connection with entering into each of
the Additional Other Agreements.

    WHEREAS, this Agreement provides for the continuation of obligations and
restrictions set forth in the Initial Parent Agreement, which were essential to
the consummation of the closing pursuant to the Initial Master Transaction
Agreement and the entering into and effectiveness of the Other Agreements
entered into in connection therewith.

    WHEREAS, each Parent is willing, solely for the benefit of the Beneficiaries
(as defined below in Section 1.11) and their successors and assigns, to
guarantee the performance by its Affiliated Obligors of certain of the
obligations of such Affiliated Obligors as set forth in this Agreement.

    WHEREAS, each Parent is willing to subject the Partner Sub Stock (as defined
herein) to certain restrictions on transfer, as set forth in this Agreement.

    WHEREAS, OPC is willing to (i) indemnify the Partnership from certain
potential liabilities that the Partnership would not otherwise be subject to but
for the merger of OPI with and into the Partnership, and (ii) agree to certain
other covenants in connection with the closing of the transactions contemplated
by the Second Master Transaction Agreement.

    NOW THEREFORE, in, consideration of the foregoing and the mutual promises
and covenants of the Parties hereto, the Parties hereby agree as follows:




    Each Parent hereby unconditionally, absolutely and irrevocably guarantees,
undertakes and promises to cause, as herein provided, the due and punctual
payment and the full and prompt performance by its Affiliated Obligors of all of
the amounts to be paid and all of the terms and provisions to be performed or
observed by or on the part of its Affiliated Obligors under the Other Agreements
in accordance with the terms thereof (all such terms and provisions as now or
hereafter in existence being collectively called the "Obligations") as follows:
in the event that its Affiliated Obligors shall fail in any manner whatsoever to
pay, perform or observe any of their Obligations, when and as the same shall be
required to be paid, performed or observed under the terms of the Other
Agreements, such Parent will itself duly and punctually pay, or fully and
promptly perform or observe, as the case may be, such Obligations, or cause the
same to be duly and punctually paid, or fully and promptly performed or
observed, in each case as if such Parent were itself the obligor with respect to
such Obligations under the Other Agreements. Insofar as this Section 1.1 relates
to the obligations of an Affiliated Obligor under the Partnership Agreement, no
Parent shall be required to make, or cause a Partner Sub to make, any
contribution to the Partnership that such Partner Sub is not otherwise required
to make pursuant to the terms of Section 2.3, 2.4, or 12.2(d)(ii) of the
Partnership Agreement. Insofar as this Section 1.1 applies to Other Agreements




                                       4




 

<PAGE>
<PAGE>

other than the Partnership Agreement, the term "Affiliated Obligors" will not
include the Partnership nor any partner in the Partnership in its capacity as
such. Notwithstanding the foregoing, this Section 1.1 shall not apply to
Obligations that are within the scope of Section 1.2.

    Each Parent acknowledges that the Partnership Agreement sets forth
definitions of "Conflicted General Partner" and "Nonconflicted General
Partner," and provides that the Nonconflicted General Partners (whether one or
more) have certain exclusive rights to control the Partnership with respect
to any Conflict Circumstance (as defined in the Partnership Agreement); and
accordingly, without limiting the rights of its Partner Subs under Section
6.8 of the Partnership Agreement, and without prejudice to any rights, remedies
or defenses the Partnership may have in respect of any such Other Agreement or
Conflict Circumstance, each Parent hereby agrees to cause its Partner Subs
(i) to cause the Partnership to pay, perform and observe all of the Obligations
to be paid, performed or observed by or on the part of the Partnership under
the Other Agreements, in accordance with the terms thereof, to the extent that
such Partner Sub is a Nonconflicted General Partner and is thereby entitled to
cause the payment, performance and observance of such Obligations and
(ii) except to the extent inconsistent with its obligations under Section
1.2(i), to abide by its obligations as a Nonconflicted General Partner with
respect to any Conflict Circumstance arising in connection with any Other
Agreement in accordance with the terms of the Partnership Agreement applicable
thereto; provided, however, that each Parent's responsibility under this
Section 1.2 for a failure of the Partnership to pay, perform or observe its
Obligations under the Other Agreements shall be limited to the circumstances
in which the Partnership's failure to so pay, perform or observe its obligations
under the Other Agreements was directly caused by an act or failure to act of
its Partner Sub, provided, further, that nothing in this Section 1.2 shall
require a Parent to make or cause such Partner Sub (i) to cure or mitigate any
inability of the Partnership to make any payment or to perform or observe any
Obligations under any Other Agreements, (ii) to cause the Partnership to require
from the Partner Subs any cash contributions in respect of any payment,
performance or observance involved in such Conflict Circumstance, or (iii) to
make any contribution to the Partnership that such Partner Sub is not otherwise
required to make pursuant to Section 2.3, 2.4, or 12.2(d)(ii) of the Partnership
Agreement.

    It shall not be a condition to the guarantees and agreements set forth in
Sections 1.1 and 1.2 above (together, the "Guarantee") that a Beneficiary shall
have first made any request of or demand upon, or given any notice of the
occurrence of a default under the Other Agreements or any other notice
whatsoever to, any Parent or its Affiliated Obligors or any other Person, or
shall have instituted any action or proceeding against any Affiliated Obligor or
any other Person in respect thereof, or shall have joined any Affiliated Obligor
or the Partnership in any such action or proceeding. A Beneficiary in asserting
the benefit of the Guarantee shall give prompt notice to a Parent of any failure
by its Affiliated Obligors or the Partnership to pay, perform or observe any
Obligation; provided, however, that any failure, delay or defect in the giving
of such notice shall not alter or affect the Guarantee under this Agreement.

    Each Parent further agrees that this Agreement, insofar as it constitutes a
guarantee of monetary Obligations, constitutes a guarantee of payment when due
and not of collection, and each Parent waives any right to require as a
condition to its Guarantee that any resort be had by a Beneficiary to any
security held for the payment of any Obligations.




                                       5




 

<PAGE>
<PAGE>

    The Guarantee is and shall remain absolute and unconditional irrespective of
any circumstance that might otherwise constitute a legal or equitable discharge
of a surety or guarantor, as the case may be, with respect to its Guarantee.

    Each Parent hereby waives, with respect to the Guarantee but without
prejudice to the rights of the parties to the Other Agreements, any notice of
acceptance of this Agreement, grace, presentment, demand, protest, notice
of the occurrence of a default under the Other Agreements and any other notice
of any kind whatsoever and promptness in making any claim or demand hereunder.
The Guarantee shall not be affected by (i) the failure of a Beneficiary to
assert any claim or demand or to enforce any right or remedy under the
provisions of any of the Other Agreements or any agreement related thereto
or otherwise, (ii) any extension or renewal of any of the Other Agreements
or any agreement related thereto, (iii) any rescission, waiver, amendment or
modification of any of the terms or provisions of any of the Other Agreements
or of any agreement related thereto, including, without limitation, any change
in the time, manner or place of payment or performance of any of the obligations
under the Other Agreements, or (iv) the release of any security held for payment
of any Obligations.

    The Guarantee shall not be subject to any reduction, limitation, impairment
or termination for any reason, including, without limitation, any claim of
waiver, release, surrender, alteration or compromise, and shall not be subject
to any defense or set-off, counterclaim, recoupment or termination whatsoever,
except as provided in Section 1.10.

    Notwithstanding anything herein to the contrary, a Beneficiary may proceed
to enforce the Guarantee without first pursuing or exhausting any right or
remedy that it or any of its successors or assigns may have against any
Affiliated Obligor or any Parent or any other person.

    The Guarantee shall continue to be effective or be reinstated, as the case
may be, if at any time payment, or any part thereof, of any Obligation of an
Affiliated Obligor is rescinded or must otherwise be restored or returned by the
Person receiving such payment upon the insolvency, bankruptcy or reorganization
of an Affiliated Obligor, all as though such payment or part thereof had not
been made.

    Nothing herein is intended to deny to any Parent, and it is expressly agreed
that each Parent shall have and may assert, any and all of the defenses,
set-offs, counterclaims and other rights (other than those relating to
insolvency, bankruptcy or reorganization as described in Section 1.9) with
regard to any Obligations that its Affiliated Obligors may possess except any
defense its Affiliated Obligors may possess relating to lack of validity or
enforceability of the Other Agreements or any other agreement or instrument
relating thereto as against its Affiliated Obligors arising from the defective
incorporation or other defective organization of its Affiliated Obligors, their
lack of qualification to do business in any applicable jurisdiction or their
defective corporate or other organizational authority to enter into, deliver or
perform the Other Agreements.

    Section 1 of this Agreement shall inure solely to the benefit of the
Beneficiaries, each of whom has the right to enforce the Guarantee against the
Parents, and nothing in this Agreement, express or implied, is intended to or
shall confer upon any other Person any rights, benefits or remedies of any
nature whatsoever under or by reason of this Agreement. As used in this
Agreement, "Beneficiaries" shall mean (i) as to any obligations of the
Occidental Parent, except for its





                                       6




 

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<PAGE>

obligations pursuant to Section 1.1 hereof with respect to the Partnership
Agreement, the Partnership, Lyondell, the Lyondell Affiliated Obligors,
Millennium and the Millennium Affiliated Obligors, (ii) as to any obligations of
Millennium, except for its obligations pursuant to Section 1.1 hereof with
respect to the Partnership Agreement, the Partnership, the Occidental Parent,
the Occidental Affiliated Obligors, Lyondell and the Lyondell Affiliated
Obligors, (iii) as to any obligations of Lyondell, except for its obligations
pursuant to Section 1.1 hereof with respect to the Partnership Agreement, the
Partnership, the Occidental Parent, the Occidental Affiliated Obligors,
Millennium and the Millennium Affiliated Obligors, and (iv) as to any
obligations of any Parent pursuant to Section 1.1 hereof with respect to the
Partnership Agreement, the other Parents. As used in this Agreement, the term
Parent includes any successor or transferee of the Parent, and the term
Affiliated Obligors includes any successor to or transferee of the Affiliated
Obligors' interest in the Partnership permitted pursuant to the Partnership
Agreement.


     (a) Each Parent shall at all times maintain a GAAP Net Worth in an amount
sufficient to satisfy its known and potential obligations under this Agreement.

     (b) Each Parent agrees that, as of the end of each fiscal quarter, either
(i) the excess of its GAAP Net Worth at such time over its Partnership
Investment at such time or (ii) the excess of its Equity Market Capitalization
at such time over its Adjusted Partnership Investment at such time, shall be at
least $250 million.

     (c) The term "GAAP Net Worth" means, for a Parent at any time, such
Parent's consolidated stockholders equity, determined in accordance with
generally accepted accounting principles ("GAAP"), as of the end of its most
recent fiscal quarter. The term "Equity Market Capitalization" means, for a
Parent at any time, (x) the aggregate market value of such Parent's outstanding
publicly traded equity securities, as of the end of its most recent fiscal
quarter (based on the average closing price for the most recent 20 trading days
on the principal stock exchange on which such securities are traded) plus (y)
the amount of stockholders equity, determined in accordance with GAAP,
attributable at such time to any equity securities of such Parent that are not
publicly traded. The term "Partnership Investment" means, for a Parent at any
time, its investment in the Partnership, determined in accordance with GAAP as
of the end of the most recent fiscal quarter. The term "Adjusted Partnership
Investment" means, for a Parent at any time, (A) Lyondell's investment in the
Partnership, determined in accordance with GAAP as of the end of the most recent
fiscal quarter, multiplied by (B) a fraction the numerator of which is the
aggregate Percentage Interest at such time of the Partner Subs owned by the
Parent whose Partnership Investment is being determined and the denominator of
which is the aggregate Percentage Interest at such time of the Partner Subs
owned by Lyondell. The term "Percentage Interest" is used as defined in the
Partnership Agreement.

     (d) The provisions of Section 1.12(b) shall expire as to a Parent at such
time after the seventh anniversary of the Closing Date at which no material
Seven Year PCCL Claim (as defined in the Asset Contribution Agreement (as
defined in the Partnership Agreement) applicable to such Parent, its Affiliated
Obligors or, if applicable, its predecessor Parent or its Affiliated Obligors)
is outstanding against such Parent, any of its Affiliated Obligors or, if
applicable, its predecessor Parent or its Affiliated Obligors.




                                       7




 

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<PAGE>

  (a) Each Parent agrees that except as otherwise provided below in this Section
2.1 or Section 2.2 or with the written consent of each of the other Parents,
which consent may be granted or withheld in such Parent's sole discretion, it
will not, in any transaction or series of transactions, directly or indirectly,
(i) sell, assign or otherwise in any manner dispose of, whether by act, deed,
merger or otherwise ("Transfer") or (ii) mortgage, pledge, encumber or create or
suffer to exist any pledge, lien or encumbrance upon or security interest in
("Pledge"), all or any part of the capital stock (including any securities
convertible into or exchangeable for or carrying any rights to purchase,
subscribe for or otherwise acquire any such capital stock) of its Partner Subs
(collectively, the "Partner Sub Stock"). (Each of the defined terms
"Transfer" and "Pledge" is used herein both as a noun and as a verb.) Any
attempt by a Parent to Transfer or Pledge all or a portion of its Partner Sub
Stock in violation of this Agreement shall be void ab initio and shall not be
effective to Transfer such Partner Sub Stock or any portion thereof. The
Partnership Agreement contains provisions relating to the Transfer and Pledge
of the Partner Subs' direct interests in the Partnership.

    (b) Each Parent agrees that all certificates representing shares of Partner
Sub Stock, whether currently owned or hereafter acquired, shall carry the
following legend, which legend each Parent agrees to cause to be placed thereon
and to cause to remain thereon as long as such shares are subject to the
restrictions of this Agreement:

     THE SALE, ASSIGNMENT, PLEDGE OR OTHER TRANSFER OR HYPOTHECATION OF THE
     STOCK REPRESENTED BY THIS CERTIFICATE IS SUBJECT TO CERTAIN RESTRICTIONS
     PURSUANT TO AND MAY NOT BE EFFECTED EXCEPT IN ACCORDANCE WITH THE
     PROVISIONS OF AN AGREEMENT BINDING UPON THE OWNER OF THE STOCK REPRESENTED
     HEREBY. THE OWNER OR ISSUER WILL FURNISH A COPY OF SUCH AGREEMENT TO ANY
     PROPOSED TRANSFEREE OR PLEDGEE WITHOUT CHARGE UPON REQUEST.

    (c) Without the need for the consent of any Person, any Parent may Transfer
its Partner Sub Stock to any wholly-owned Affiliate of such Parent or of a
common parent.

    (d) Without the need for the consent of any Person, each Parent (other than
OCC or Oxy CH) may Transfer all (but not less than all) of its Partner Sub
Stock, if such Transfer is in connection with (i) a merger, consolidation,
conversion or share exchange of such Parent or (ii) a sale or other disposition
of (x) the Partner Sub Stock plus (y) other assets representing at least
fifty-percent (50%) of the book value of such Parent's assets excluding the
Partner Sub Stock, as reflected on its most recent audited consolidated (or
combined) financial statements; provided, however, that the Successor Parent, if
any, (A) shall succeed to and be substituted for such Parent, with the same
effect as if it had been named herein and (B) shall execute an instrument
wherein such Successor Parent shall agree to be bound by the obligations of such
Parent under this Agreement, with the same effect as if it had been named
herein, whereupon, unless such Parent shall become a direct or indirect
subsidiary of such Successor Parent, such Parent shall thereupon be released
from all obligations under Sections 1, 2 and 4 of this Agreement.




                                       8



 

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<PAGE>

    (e) Without the need for the consent of any Person, OCC may Transfer all
(but not less than all) of its Partner Sub Stock, if such Transfer is in
connection with:

     (i)  a merger, consolidation, conversion or share exchange of OCC,

     (ii) a sale or other disposition of (x) the Partner Sub Stock plus (y)
               other assets representing at least fifty percent (50%) of the
               book value of Oxy CH's assets excluding the Partner Sub
               Stock, as reflected on its most recently unaudited
               consolidated (or combined) financial statements, or

     (iii) any Transfer permitted by Section 2.1(f);

     and following the consummation of any such transaction, the Partner Sub
     Stock held directly or indirectly by OCC and Oxy CH on the date hereof
     shall be held by the same transferee or one or more transferees that are
     wholly-owned Affiliates of each other or of a common parent entity;
     provided, however, that the Successor Parent, if any, (A) shall succeed to
     and be substituted for OCC, with the same effect as if it had been named
     herein, and (B) shall execute an instrument wherein such Successor Parent
     shall agree to be bound by the obligations of OCC hereunder, with the same
     effect as if it had been named herein, whereupon, unless OCC shall become a
     direct or indirect subsidiary of such Successor Parent, OCC shall thereupon
     be released from all obligations under Sections 1, 2 and 4 of this
     Agreement.

    (f) Without the need for the consent of any Person, Oxy CH may Transfer all
(but not less than all) of its Partner Sub Stock, if such Transfer is in
connection with:

     (i)  a merger, consolidation, conversion or share exchange of Oxy CH,

     (ii) a sale or other disposition of (A) the Partner Sub Stock plus (B)
               other assets representing at least fifty percent (50%) of the
               book value of Oxy CH's assets excluding the Partner Sub
               Stock, as reflected on its most recently prepared unaudited
               consolidated (or combined) financial statements, or

     (iii) any Transfer permitted by Section 2.1(e) or (g);

     and following the consummation of any such transaction, the Partner Sub
     Stock held directly or indirectly by OCC and Oxy CH on the date hereof
     shall be held by the same transferee or one or more transferees that are
     wholly-owned Affiliates of each other or of a common parent entity;
     provided, however, that the Successor Parent, if any, (A) shall succeed to
     and be substituted for Oxy CH, with the same effect as if it had been named
     herein, and (B) shall execute an instrument wherein such Successor Parent
     shall agree to be bound by the obligations of Oxy CH hereunder, with the
     same effect as if it had been named herein, whereupon, unless Oxy CH shall
     become a direct or indirect subsidiary of such Successor Parent, Oxy CH
     shall thereupon be released from all obligations under Sections 1, 2 and 4
     of this Agreement.

    (g) Nothing in this Agreement shall prevent or restrict the Transfer or
Pledge of the capital stock, equity ownership interests or other securities of a
Parent (or, in the case of the Occidental Parent, either of OCC or Oxy CH), and
no such Transfer or Pledge of securities issued by a Parent (or, in the case of
the Occidental Parent, either of OCC or Oxy CH) shall be deemed to constitute a
Transfer or Pledge of Partner Sub Stock hereunder; provided that, (i) in the
event of a Transfer in the form of a transaction described in clause (i) of
Section 2.1(d), (e) or




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<PAGE>

(f), the Successor Parent, if any, shall execute an instrument to the effect
described in clause (B) of Section 2.1(d), (e) or (f), as applicable, and (ii)
following the consummation of any such Transfer or Pledge of securities of a
Parent, all the Partner Sub Stock of such Parent shall be held by the same
transferee or one or more transferees that are wholly-owned Affiliates of each
other or of a common parent entity or shall be Pledged to the same pledgee or
pledgees.

    (h) For purposes of this Section 2.1, the term "Successor Parent" shall mean
the acquiring, succeeding or surviving entity in any transaction contemplated by
Section 2.1 (d), (e) or (f) that owns the applicable Partner Sub Stock following
such transaction, if other than a Parent.

    (i) Each Parent may Pledge all (but not less than all) of its Partner Sub
Stock to any one or more Approved Lenders; provided that the Pledge shall be
evidenced by an instrument, reasonably satisfactory to the Partnership, wherein
the Approved Lender receiving such Pledge shall agree that in the event such
Approved Lender obtains a right of foreclosure on such Parent's Partner Sub
Stock, such Approved Lender will foreclose on the Partner Sub Stock of each of
such Parent's Partner Subs equally so that such Approved Lender will in all
events hold equal portions of Partner Sub Stock of Occidental GP, Occidental LP1
and Occidental LP2, Lyondell GP and Lyondell LP or Millennium GP and Millennium
LP, as the case may be. An "Approved Lender" shall be any bank, insurance
company, investment bank or other financial institution that is regularly
engaged in the business of making loans.

     (a) Without the consent of each of the other Parents, no Parent may
Transfer less than all of its Partner Sub Stock, and unless such Transfer is
otherwise permitted by Section 2.1, no Parent may Transfer its Partner Sub Stock
for consideration other than cash. Unless such Transfer is otherwise permitted
by Section 2.1, any Parent (the "Selling Parent") desiring to Transfer all of
its Partner Sub Stock to any person (including another Parent or any Affiliate
thereof) shall give written notice (the "Initial Notice") to the Partnership and
each of the other Parents (the "Offeree Parents") stating that the Selling
Parent desires to Transfer its Partner Sub Stock and stating the cash purchase
price and all other terms on which it is willing to sell (the "Offer Terms").
Delivery of an Initial Notice shall constitute the irrevocable offer of the
Selling Parent to sell its Partner Sub Stock to the Offeree Parents hereunder.

     (b) Each Offeree Parent shall have the option, exercisable by delivering
written notice (the "Acceptance Notice") of such exercise to the Selling Parent
within 45 days of the date of the Initial Notice, to elect to purchase its pro
rata share in the case of both of the limited partner and the general partner
(based on the ratio of the number of Units held by its Partner Subs to the
number of Units held by all of the Partner Subs of the Offeree Parents or on any
other basis that shall be mutually agreed upon between the Offeree Parents
delivering an Acceptance Notice) of all of the Partner Sub Stock of the Selling
Parent on the Offer Terms described in the Initial Notice. If one Offeree
Parent, but not the other, elects to so purchase, the Selling Parent shall give
written notice thereof (the "Additional Notice") to the Offeree Parent electing
to purchase and such Parent shall have the option, exercisable by delivery of an
Acceptance Notice, of such exercise to the Selling Parent within 15 days of such
notice, to purchase all of the Partner Sub Stock held by the Selling Parent,
including the Partner Sub Stock it has not previously elected to





                                       10




 

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<PAGE>

purchase; provided, however, that any election by an Offeree Parent not to
purchase all such Partner Sub Stock shall be deemed a rescission of such Offeree
Parent's original Acceptance Notice and an election not to purchase any of the
Partner Sub Stock of the Selling Parent. Each Acceptance Notice shall set a date
for closing the purchase, such date to be not less than 30 nor more than 90 days
after delivery of the Acceptance Notice; provided that such time period shall be
subject to extension as reasonably necessary (up to a maximum of an additional
120 days after such 90 day period) in order to comply with any applicable filing
and waiting period requirements under the Hart-Scott-Rodino Antitrust
Improvements Act. The closing shall be held at the Partnership's offices. The
purchase price for the Selling Parent's Partner Sub Stock shall be paid in cash
delivered at the closing. The purchase shall be consummated by appropriate and
customary documentation (including the giving of representations and warranties
substantially similar to (i) in the case of Lyondell or Millennium, those set
forth in Sections 2.1 through 2.4 of the Initial Master Transaction Agreement,
and in the case of the Occidental Parent, those set forth in Section 2.2 of the
Second Master Transaction Agreement, and (ii) customary representations and
warranties regarding the Selling Parent's title to its Partner Sub Stock).

     (c) If one or both of the Offeree Parents does not elect to purchase all of
the Selling Parent's Partner Sub Stock within 45 days after the receipt of the
Initial Notice or within 15 days after the receipt of the Additional Notice, if
applicable, the Selling Parent shall have a further 180 days during which it
may, subject to Sections 2.2(d) and (e), consummate the sale of its Partner Sub
Stock to a third party purchaser at a purchase price and on such other terms
that are no more favorable to such purchaser than the Offer Terms. If the sale
is not completed within such further 180-day period, the Initial Notice shall be
deemed to have expired and a new notice and offer shall be required before the
Selling Parent may make any Transfer of its Partner Sub Stock.

     (d) Before the Selling Parent may consummate a Transfer of its Partner Sub
Stock to a third party in accordance with this Agreement, the Selling Parent
shall demonstrate to the other two Parents that such proposed purchaser (or the
Person willing to serve as its guarantor as contemplated by Section 2.2(e)) has
outstanding indebtedness that is rated investment grade by either Moody's
Investor Services Inc. or Standard & Poor's Ltd, or if such proposed purchaser
(or such other Person) has no rated indebtedness outstanding, such Person shall
provide an opinion from one of such entities or from a nationally recognized
investment banking firm that it could be reasonably expected to obtain such a
rating.

     (e) Notwithstanding the foregoing provisions of this Section 2.2, a Parent
may Transfer its Partner Sub Stock (other than pursuant to Section 2.1) only if
all of the following occur:

               (i) The Transfer is accomplished in a non-public offering in
          compliance with, and exempt from, the registration and qualification
          requirements of all federal and state securities laws and regulations.

               (ii) The Transfer does not cause a default under any material
          contract which has been approved unanimously by the Partnership
          Governance Committee (as defined in the Partnership Agreement) and to
          which the Partnership is a party or by which the Partnership
          or any of its properties is bound.






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<PAGE>

               (iii) The transferee executes an appropriate agreement to be
          bound by this Agreement.

               (iv) The transferor and/or transferee bears all reasonable costs
          incurred by the Partnership in connection with the Transfer.

               (v) The transferee (or the guarantor of the obligations of the
          transferee) satisfies the criteria set forth in Section 2.2(d) and
          delivers an agreement to each of the other Parents and the Partnership
          substantially in the form of this Agreement.

               (vi) The proposed transferor is not in default in the timely
          performance of any of its material obligations to the Partnership.

               (vii) The provisions of Section 2.2(f) are satisfied.

     (f) No Parent may Transfer the Partner Sub Stock of any of its Partner Subs
to any Person unless such Parent simultaneously Transfers the Partner Sub Stock
of its other Partner Sub or Partner Subs (if the Parent has more than one
Partner Sub), to such Person or a wholly-owned Affiliate of such Person or of a
common parent.

    Each Parent hereby agrees that it will not, without the written consent of
each of the other Parents, permit any of its Affiliated Obligors (or their
successors or assigns) (i) to commence a voluntary action under the Federal
bankruptcy laws, as now or hereafter constituted, or any other applicable
Federal or State bankruptcy, insolvency or other similar law, (ii) to institute
a proceeding to be adjudicated a voluntary bankrupt, (iii) to consent to the
filing of a bankruptcy proceeding against it, (iv) to fail to contest a
bankruptcy proceeding against it, (v) to consent to the appointment of a
receiver, custodian, liquidator or trustee for it or for all or any substantial
portion of its property, (vi) in the case of its Partner Subs, to issue or sell
other than to such Parent any of its own Partner Sub Stock or (vii) to effect,
recognize or permit any transfer of any of its own Partner Sub Stock other
than in accordance with the provisions of Section 2 of this Agreement.

    Each Parent agrees that (i) the business of its Partner Subs shall be
restricted solely to the holding of the respective interests in the Partnership
and the doing of things necessary or incidental in connection therewith, and
(ii) it will cause its Partner Subs not to own any assets, incur any liabilities
or engage, participate or invest in any business outside the scope of their
businesses as described in clause (i); provided, however, that this Section 2.4
shall not apply with respect to any wholly-owned Affiliates to whom such Partner
Subs shall transfer their respective interests in the Partnership if such
wholly-owned Affiliates are not bound by Section 9.6 of the Partnership
Agreement. Notwithstanding the foregoing provisions of this Section 2.4, this
Section 2.4 shall not prohibit any Partner Sub from incurring debt payable to
its Parent or an Affiliate as long as:

(i)  such debt is not transferable (by contract or operation of law) to any
     Person other than Parent or an Affiliate of Parent;





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<PAGE>

(ii) no payment on such debt is permitted or required to be made if at the time
     of such payment such Partner Sub is in Default under (and as defined in)
     the Partnership Agreement or by making such payment such Partner Sub would
     not be able to perform its obligations under the Partnership Agreement.

Each Parent hereby agrees that it and its Affiliates shall not be entitled to,
and that the Partner Sub shall not be required to make, any payments on any such
debt payable by its Partner Sub if: (i) at the time of such payment such Partner
Sub is in Default under the Partnership Agreement, (ii) by making such payment
such Partner Sub would not be able to perform its obligations under the
Partnership Agreement, or (iii) such Parent is in default of its obligations
under Section 1.12 of this Agreement.


    For purposes of this Section 3 only, the term "Parent" means and includes
OPC, Oxy CH, OCC, Lyondell and Millennium. Each Parent agrees that with respect
to each of the other Parents (each a "Subject Parent", provided that no Parent
shall be a "Subject Parent" from and after the expiration of 24 months from the
date on which such Parent and its Affiliates no longer hold an interest in the
Partnership; and provided, further, that none of OPC, Oxy CH or OCC is a Subject
Parent with respect to each other), neither it, nor any of its Affiliates shall,
without prior written invitation or request of another Subject Parent: (i) in
any manner acquire, agree to acquire or make any proposal to acquire, directly
or indirectly, any securities, assets or property of such other Subject Parent,
whether such agreement or proposal is made with or to such other Subject Parent
or a third party; (ii) make any unsolicited proposal to enter into, directly or
indirectly, any merger or other business combination involving such other
Subject Parent; (iii) make, or in any way participate, directly or indirectly,
in any "solicitation" of "proxies" (as such terms are used in the proxy rules of
the Securities and Exchange Commission) to vote, or seek to advise or influence
any person with respect to the voting of, any voting securities of such other
Subject Parent; (iv) form, join or in any way participate in a "group" (within
the meaning of Section 13(d)(3) of the Securities Exchange Act of 1934) with
respect to any voting securities of such other Subject Parent; (v) otherwise
act, alone or in concert with others, to seek to control the management, Board
of Directors or policies of such other Subject Parent; (vi) disclose any
intention, plan or arrangement inconsistent with the foregoing; or (vii) advise,
encourage, provide assistance (including financial assistance) to or hold
discussions with any other persons in connection with any of the foregoing. Each
Parent also agrees during such period not to: (i) request that such other
Subject Parent (or its respective directors, officers, employees or agents),
directly or indirectly, amend or waive any provision of this Section 3.1
(including this sentence); or (ii) take any action which might reasonably be
expected to require that such other Subject Parent to make a public announcement
regarding the possibility of a business combination or merger.

   Notwithstanding the provisions of Section 3.1:

     (a) Any Parent may, by notice to another Parent, terminate the provisions
of Section 3.1 (as applied to the relationship between such two Parents, but not
as to their respective relationships with the third Parent) at any time within
30 days after the occurrence of any of the following events with respect to such
other Parent: (i) a Change of Control (as defined below) of





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<PAGE>

such other Parent shall have occurred, (ii) such other Parent shall have entered
into a definitive agreement providing for, or publicly announced its intention
to effect, any transaction involving a Change of Control of such other Parent or
(iii) a tender offer or exchange offer shall have been commenced or publicly
announced that, if consummated, would have the effect with respect to such other
Parent described in clause (c) of the definition of "Change of Control." A
"Change of Control" of a Parent shall mean the occurrence of any of the
following events: (a) there shall be consummated any consolidation, merger or
share exchange of such Parent (i) in which such Parent is not the continuing or
surviving Person (other than a consolidation, merger or share exchange with a
wholly owned subsidiary of such Parent in which all shares of common stock of
such Parent outstanding immediately prior to the effectiveness thereof are
changed into or exchanged for the same number of shares of common stock of such
subsidiary) or (ii) pursuant to which the common stock of such Parent is
converted into cash, securities or other property, other than, in each case, a
consolidation, merger or share exchange of such Parent in which the holders of
the common stock immediately prior to the consolidation, merger or share
exchange hold, directly or indirectly, at least a majority of the voting power
and common equity of the continuing or surviving Person immediately after such
consolidation, merger or share exchange; (b) such Parent's properties and assets
are sold or otherwise disposed of substantially as an entirety on a consolidated
basis to any Person or group of Persons in any one transaction or a series of
related transactions, other than as contemplated by the Initial Master
Transaction Agreement or the Second Master Transaction Agreement; or (c) any
Person or any Persons acting together which would constitute a "group" (as
defined in Section 3.1) (other than such Parent, any subsidiary of such Parent,
any employee stock purchase plan, stock option plan or other stock incentive
plan or program, retirement plan or automatic dividend reinvestment plan or any
substantially similar plan of such Parent or any subsidiary of such Parent or
any Person holding securities of such Parent for or pursuant to the terms of any
such employee benefit plan), together with any Affiliates thereof, shall acquire
beneficial ownership (as defined in Rule 13d-3 under the Securities Exchange Act
of 1934) of 50% or more of the voting stock of such Parent.

     (b) The terms of the first sentence of Section 3.1 shall not be applicable
to the purchase and sale of any securities of a Parent by independent
third-party managers of any pension or other related employee benefit plans who
are acting as passive investors in such Parent.

     OPC hereby agrees, to the fullest extent permitted by applicable law, to
indemnify, defend and hold harmless the Partnership and its Affiliates and their
respective officers, directors and employees from, against and in respect of any
Liability (as defined in Section 6.2(a) of the Occidental Contribution
Agreement) incurred or suffered by the Partnership or any of its Affiliates,
arising out of, in connection with, or relating to:

     (a) all income taxes, and all interest and penalties incurred with respect
thereto, that are imposed on OPC or any member of its affiliated group; and

     (b) any obligation arising under Title IV of ERISA (as defined in the
Occidental Contribution Agreement) with respect to any Employee Plan (as defined
in the Occidental Contribution Agreement) maintained by any Contributor (as
defined in the Occidental Contribution Agreement) or any member of a controlled
group (as defined in Section 414 of the Code (as defined in the Occidental
Contribution Agreement)) with the Contributor, but excluding obligations arising
under the Cain Plan (as defined in the Occidental Contribution Agreement)




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<PAGE>

and obligations under the PDG Plan (as defined in the Occidental Contribution
Agreement with respect to funding requirements arising after the Closing Date.


     (a) From the date hereof through the twenty-fifth anniversary hereof, each
of OPC, Lyondell and Millennium (an "Indemnifying Party") hereby agrees, to the
fullest extent permitted by applicable law, to indemnify, defend and hold
harmless the Partnership, its partners, their Affiliates and their respective
officers, directors, and employees (collectively, the "Indemnified Parties")
from, against and in respect of any Liability incurred by any of the Indemnified
Parties arising out of, in connection with, or relating to, any Third Party
Claim (as defined in the Occidental Contribution Agreement) (whether in
contract, tort, statute or otherwise) arising out of, in connection with, or
relating to the failure of the Indemnifying Party or any of its Affiliates to
give notice to, obtain any consent of, or obtain any waiver by, or any breach by
the Indemnifying Party or any of its Affiliates of any obligation owing to, any
Person (as defined in the Occidental Contribution Agreement), in each case with
respect to such Indemnifying Party's or its Affiliates' entering into the
Related Agreements or performing their respective obligations thereunder;

    provided, however, that the following limitations shall apply to the
indemnification obligations in Sections 3.3 and 3.4 above:




     (b) NOTWITHSTANDING ANY OTHER PROVISION OF THIS AGREEMENT, TO THE FULLEST
EXTENT PERMITTED BY LAW, NO INDEMNIFYING PARTY OR ANY OF ITS AFFILIATES OR THEIR
RESPECTIVE AGENTS, EMPLOYEES, OR REPRESENTATIVES SHALL BE LIABLE FOR
CONSEQUENTIAL, INCIDENTAL, INDIRECT OR PUNITIVE DAMAGES IN CONNECTION WITH
DIRECT CLAIMS BY AN INDEMNIFIED PARTY (I.E., A CLAIM BY AN INDEMNIFIED PARTY
THAT DOES NOT SEEK REIMBURSEMENT FOR A THIRD PARTY CLAIM PAID OR PAYABLE BY THE
INDEMNIFIED PARTY) WITH RESPECT TO THE INDEMNIFICATION OBLIGATIONS UNDER THIS
AGREEMENT UNLESS ANY SUCH CLAIM ARISES OUT OF THE FRAUDULENT ACTIONS OF AN
INDEMNIFYING PARTY OR ITS AFFILIATES. IN DETERMINING THE AMOUNT OF ANY LOSS,
LIABILITY, OR EXPENSE FOR WHICH ANY INDEMNIFIED PARTY IS ENTITLED TO
INDEMNIFICATION UNDER THIS AGREEMENT, THE GROSS AMOUNT THEREOF WILL BE REDUCED
(BUT NOT BELOW ZERO) BY THE NET PRESENT VALUE OF ANY CORRELATIVE INSURANCE
PROCEEDS ACTUALLY REALIZED BY THE INDEMNIFIED PARTY UNDER POLICIES TO THE EXTENT
THAT THE FUTURE PREMIUM RATE WILL NOT BE INCREASED BY CLAIM EXPERIENCE RELATING
TO SUCH LOSS, LIABILITY OR EXPENSE.

     (c) Indemnification pursuant to Sections 3.3 and 3.4 shall be subject to
the indemnification provisions set forth in Section 6.3 of the Occidental
Contribution Agreement, as if the Indemnified Parties and Indemnifying Party
were the "Indemnified Parties" and the "Indemnifying Party" thereunder.




                                       15





 

<PAGE>
<PAGE>

     (d) The rights provided to each Indemnified Party pursuant to Sections 3.3
and 3.4 of this Agreement and Section 14 of the Partnership Agreement, as
limited by and subject to the provisions of this Section 3 shall be such
Indemnified Party's sole remedy for any matter arising out of, relating to, or
in connection with, the matters described in Section 3.3 and 3.4 of this
Agreement and Section 14 of the Partnership and shall be without duplication of
any rights provided to such Indemnified Party under the Master Transaction
Agreement or any of the Related Agreements.

     (e) EXTENT OF INDEMNIFICATION. WITHOUT LIMITING OR ENLARGING THE SCOPE OF
THE INDEMNIFICATION OBLIGATIONS SET FORTH HEREIN, TO THE FULLEST EXTENT
PERMITTED BY LAW, AN INDEMNIFIED PARTY SHALL BE ENTITLED TO INDEMNIFICATION
HEREUNDER IN ACCORDANCE WITH THE TERMS HEREOF, REGARDLESS OF WHETHER THE
INDEMNIFIABLE LOSS GIVING RISE TO ANY SUCH INDEMNIFICATION OBLIGATION IS THE
RESULT OF THE SOLE, GROSS, ACTIVE, PASSIVE, CONCURRENT OR COMPARATIVE
NEGLIGENCE, STRICT LIABILITY OR OTHER FAULT OR VIOLATION OF ANY LAW OF OR BY ANY
SUCH INDEMNIFIED PARTY. THE PARTIES AGREE THAT THIS STATEMENT CONSTITUTES A
CONSPICUOUS LEGEND.





   No failure or delay by a Beneficiary or a Party in exercising any right or
power under this Agreement, or any single or partial exercise of any such right
or power, shall preclude any other or further exercise thereof or the exercise
of any other right or power. Such single or partial exercise of any right or
power shall be cumulative and not exclusive of any rights or remedies provided
by law.

In the event of a dispute between Parties regarding the exercise or enforcement
of any of the rights of a Beneficiary under this Agreement or the failure by a
Party to perform or observe any of the provisions of this Agreement, the Party
that does not ultimately prevail in such dispute shall be liable, and hereby
agrees, to reimburse, on demand, each other such Party for any and all costs and
expenses, including the fees and expenses of legal counsel and of any other
counsel, experts, consultants or agents, that such other Party may incur in
connection therewith.

    The rights of a Parent against its Affiliated Obligors arising from any
payment or performance by a Parent hereunder shall be subordinate in all
respects to the rights of the Beneficiaries against such Affiliated Obligors,
and such Parent shall not compete in any way with a Beneficiary in any
winding-up or dissolution of such Affiliated Obligors unless and until all sums
due and to become due from such Affiliated Obligors to the Beneficiaries have
been paid in full. If any amount shall be paid to a Parent in violation of this
Section, such amount shall be held in trust for the benefit of the Beneficiaries
and shall forthwith be paid to the Beneficiaries to be credited and applied to
any sums owed or to be owed by such Parent's Affiliated Obligors. Subject to the
foregoing, upon payment of all sums due or to become due by Affiliated Obligors
to the Beneficiaries, the Parent of such Affiliated Obligors shall be subrogated
to the rights of the Beneficiary against such Affiliated Obligors, and the
Beneficiaries agree to take at such Parent's expense such steps as such Parent
may reasonably request to implement such subrogation.




                                       16




 

<PAGE>
<PAGE>

     (a) Each Parent agrees that it and its Affiliates shall be bound by the
terms and conditions of Section 13.1 of the Partnership Agreement as if such
Person was a "Partner" as defined in such agreement.

     (b) Lyondell, Millennium and OPC shall consult with each other on an
ongoing basis with respect to disclosures regarding the Partnership and its
business and affairs that each is required to make in reports filed from time to
time with the Securities and Exchange Commission.

     (c) The letter agreement regarding confidentiality dated December 11, 1997
between Lyondell and OPC is hereby terminated.

     If any Parent or an Affiliate thereof desires to initiate or pursue any
opportunity to undertake, engage in, acquire or invest in a Business Opportunity
(as such term is defined in the Partnership Agreement), such Person shall offer
such Business Opportunity to the Partnership under the terms and conditions set
forth in Sections 9.3(c) and (d) of the Partnership Agreement as if such Person
were the "Proposing Partner" (as defined in the Partnership Agreement) with
respect thereto, and in such event the Partnership shall have the rights and
obligations with respect thereto set forth in such Sections 9.3(c) and (d).

     From time to time, each Party agrees to execute and deliver such additional
documents and provide such additional information and assistance as the
Beneficiaries may reasonably require to carry out the terms of this Agreement.

     (a) Except as provided in this Agreement and except that a Parent may
assign its rights or obligations under this Agreement to a third party in
connection with a transfer of direct interests in the Partnership owned
by its Partner Subs if such transfer is permitted and consummated in
accordance with the Partnership Agreement, no Parent may assign or delegate
any of its rights or obligations under this Agreement without the prior written 
consent of all the Beneficiaries, which consent shall be in the sole and
absolute discretion of such Beneficiaries. Any purported assignment or
delegation without such consent shall be void and ineffective.

     (b) Except as may be expressly provided herein, this Agreement shall be
binding upon and inure to the benefit of the successors of the Beneficiaries.

     (c) Within six months after the date of this Agreement, Oxy CH and OCC
shall be entitled to assign their respective rights and obligations under
Section 1 to Occidental Chemical Holding Corporation, a California corporation
and an indirect wholly owned subsidiary of OPC ("OCHC"), provided that OCHC
executes an instrument wherein OCHC shall agree to be bound by the obligations
of Oxy CH and OCC thereunder and under Section 4 in a form reasonably acceptable
to the Partnership. Upon such execution, OCHC shall become the "Occidental
Parent" for purposes of Section 1, and Oxy CH and OCC shall thereupon be
released from all obligations under Section 1.

     This Agreement is made solely for the benefit of the Parties and, with
respect to Sections 1 and 4 (excluding Sections 4.4 and 4.5), the Beneficiaries
(as defined in Section 1.11), and no other Person shall have any right, claim or
cause of action under or by virtue of this Agreement.




                                       17




 

<PAGE>
<PAGE>

     All notices, requests, demands and other communications (collectively,
"notices") required or may be given under this Agreement shall be in writing and
shall be deemed to have been duly given if and when (i) transmitted by
telecopier facsimile with proof of confirmation from the transmitting machine or
(ii) delivered by commercial courier or other hand delivery, as follows:

<TABLE>
<S>                                          <C>
If to OPC                                    If to OCC, Oxy CH, the Occidental Partner
Subs

   Occidental Petroleum Company              Occidental Petroleum Corporation
   10889 Wilshire Blvd.                      10889 Wilshire Blvd.
   Los Angeles, CA  90024                    Los Angeles, CA 90024
   Attention: President                      Attention: President
   Telecopy Number: (310) 443-6977           Telecopy Number:(310) 443-6977

With a copy to                               With a copy to

   Occidental Petroleum Corporation          Occidental Petroleum Corporation
   10889 Wilshire Boulevard                  10889 Wilshire Boulevard
   Los Angeles, California 90024             Los Angeles, California 90024
   Attention: General Counsel                Attention: General Counsel
   Telecopy Number: (310) 443-6333           Telecopy Number: (310) 443-6333

If to Lyondell                               If to the Lyondell Partner Subs

   Lyondell Petrochemical Company            Lyondell Petrochemical Company
   1221 McKinney Street                      1221 McKinney Street
   Houston, Texas 77010                      Houston, Texas 77010
   Attention: Kerry A. Galvin                Attention:  Kerry A. Galvin
   Telecopy Number: (713) 309-4718           Telecopy Number: (713) 309-4718

If to Millennium                             If to the Millennium Partner Subs

   Millennium Chemicals Inc.                 Millennium Chemicals Inc.
   99 Wood Avenue South                      99 Wood Avenue South
   Iselin, New Jersey  08830                 Iselin, New Jersey  08830
   Attention: George H. Hempstead, III       Attention: George H. Hempstead, III
   Telecopy Number: (908) 603-6857           Telecopy Number: (908) 603-6857

If to the Partnership

   Equistar Chemicals, LP
   1221 McKinney Street
   Houston, Texas 77010
   Attention: Gerald A. O'Brien
   Telecopy Number:  (713) 309-4718

</TABLE>


                                       18




 

<PAGE>
<PAGE>

   Telecopy Number:  (713) 309-4718


or to such other address as such Party or Beneficiary shall have specified by
notice to the other Parent.

     In the event that any provisions of this Agreement shall finally be
determined to be unlawful, such provision shall, so long as the economic
and legal substance of the transactions contemplated hereby is not affected
in any materially adverse manner as to any Party, be deemed severed from this
Agreement and every other provision of this Agreement shall remain in full
force and effect.

     Except for Sections 3.1, 3.2 and 3.4 (which sections shall terminate only
as provided therein), this Agreement shall terminate and be of no further force
and effect as to a Parent (i) as and when provided in Section 2.1(d), (e) or (f)
or (ii) if and when such Parent Transfers all of its Partner Sub Stock in a
transaction permitted by Section 2.2; provided, however, that such termination
shall not discharge (x) any accrued Obligations owed by a Parent as of the date
of such termination or (y) any Obligations, whether arising before or after such
termination, under such Parent's Asset Contribution Agreement (as such term is
defined in the Partnership Agreement) or any Related Agreement executed pursuant
to such Asset Contribution Agreement. In addition, the Guarantee by a Parent of
Obligations of an Affiliated Obligor other than a Partner Sub shall terminate as
and when the Parent ceases to be an Affiliate of such Affiliated Obligor,
insofar as such Guarantee relates to Obligations arising thereafter. The
obligations of OPC and the obligations of each of Lyondell and Millennium to
OPC, in each case pursuant to Section 4.4(b), shall terminate and be of no
further force and effect at such time as OPC is no longer required to make the
disclosures referred to in Section 4.4(b) to the Securities and Exchange
Commission.

     (a) In construing this Agreement, the following principles shall be
followed: (i) no consideration shall be given to the captions of the articles,
sections, subsections or clauses, which are inserted for convenience in locating
the provisions of this Agreement and not as an aid in construction; (ii) no
consideration shall be given to the fact or presumption that any Party had a
greater or lesser hand in drafting this Agreement; (iii) examples shall not be
construed to limit, expressly or by implication, the matter they illustrate;
(iv) the word "includes" and its syntactic variants mean "includes, but is not
limited to" and corresponding syntactic variant expressions; (v) the plural
shall be deemed to include the singular, and vice versa; (vi) each gender shall
be deemed to include the other gender; and (vii) each exhibit, attachment and
schedule to this Agreement is a part of this Agreement.

     (b) The term "Affiliate" shall mean any Person that directly or indirectly
through one or more intermediaries, controls or is controlled by or is under
common control with the Person specified; provided, however, that, in the case
of OPC and its Affiliates, for purposes of this Agreement, such term shall not
include Canadian Occidental Petroleum Ltd. For purposes of this definition, the
term "control" shall have the meaning set forth in 17 CFR 230.405 as in effect
on the date hereof.





                                       19



 

<PAGE>
<PAGE>

     (c) The term "Person" shall mean any natural person or any corporation,
partnership, limited liability company, joint venture, association, trust or
other entity or organization.

     This Agreement may be executed in one or more counterparts, each of which
shall constitute an original, and all of which when taken together shall
constitute one and the same original document.

     The laws of the State of Delaware shall govern the construction,
interpretation and effect of this Agreement without giving effect to any
conflicts of law principles.

     ANY JUDICIAL PROCEEDING BROUGHT AGAINST ANY PARTY TO THIS AGREEMENT OR ANY
DISPUTE UNDER OR ARISING OUT OF OR IN CONNECTION WITH THIS AGREEMENT OR ANY
MATTER RELATED HERETO SHALL BE BROUGHT IN THE FEDERAL OR STATE COURTS OF THE
STATE OF DELAWARE, AND, BY EXECUTION AND DELIVERY OF THIS AGREEMENT, EACH OF THE
PARTIES TO THIS AGREEMENT ACCEPTS THE EXCLUSIVE JURISDICTION OF SUCH COURTS AND
IRREVOCABLY AGREES TO BE BOUND BY ANY JUDGMENT (AS FINALLY ADJUDICATED) RENDERED
THEREBY IN CONNECTION WITH THIS AGREEMENT. EACH OF THE PARTIES TO THIS AGREEMENT
SHALL APPOINT THE CORPORATION TRUST COMPANY, THE PRENTICE-HALL CORPORATION
SYSTEM, INC. OR A SIMILAR ENTITY (THE "AGENT") AS AGENT TO RECEIVE ON ITS BEHALF
SERVICE OF PROCESS IN ANY PROCEEDING IN ANY SUCH COURT IN THE STATE OF DELAWARE.
THE FOREGOING CONSENTS TO JURISDICTION AND APPOINTMENTS OF AGENT TO RECEIVE
SERVICE OF PROCESS SHALL NOT CONSTITUTE GENERAL CONSENTS TO SERVICE OF PROCESS
IN THE STATE OF DELAWARE FOR ANY PURPOSE EXCEPT AS PROVIDED ABOVE AND SHALL NOT
BE DEEMED TO CONFER RIGHTS ON ANY PERSON OTHER THAN THE PARTIES HERETO. EACH
PARENT HEREBY WAIVES ANY OBJECTION IT MAY HAVE BASED UPON LACK OF PERSONAL
JURISDICTION, IMPROPER VENUE OR FORUM NON-CONVENIENS.

     EACH PARTY HEREBY KNOWINGLY AND INTENTIONALLY, IRREVOCABLY AND
UNCONDITIONALLY WAIVES TRIAL BY JURY IN ANY LEGAL ACTION OR PROCEEDING
RELATING TO THIS AGREEMENT AND FOR ANY COUNTERCLAIM THEREIN.

     All disputes under this Agreement shall be resolved in accordance with the
Dispute Resolution Procedures set forth in Appendix B.

     Each Parent shall cause its Affiliates (including any person controlling
such Parent) to comply with all provisions of this Agreement that apply to
Affiliates of such Parent, and each Parent shall be responsible for any
failure of any such Affiliate to comply with any such provision.

     All waivers, modifications, amendments or alterations of this Agreement
shall require the execution of a written instrument signed by each of the
Parties.

     IN WITNESS WHEREOF, the Parties have executed and delivered this Amended
and Restated Parent Agreement as of the date first above written.




                                       20





 

<PAGE>
<PAGE>

                                 OCCIDENTAL CHEMICAL CORPORATION



                                 By:
                                    ____________________________________________
                                    Name:  R.J. Schuh
                                    Title: Executive Vice President


                                 OXY CH CORPORATION



                                 By:
                                    ____________________________________________
                                    Name:  Keith C. McDole
                                    Title: Senior Vice President


                                 OCCIDENTAL PETROLEUM CORPORATION



                                 By:
                                    ____________________________________________
                                    Name:  S.P. Dominick, Jr.
                                    Title: Vice President and Controller

            [Signature Page to Amended and Restated Parent Agreement]

                                 LYONDELL PETROCHEMICAL COMPANY



                                 By:
                                    ____________________________________________
                                    Name:  Dan. F. Smith
                                    Title: President and Chief Executive Officer


                                 MILLENNIUM CHEMICALS INC.



                                 By:
                                    ____________________________________________
                                    Name:  George H. Hempstead, III
                                    Title: Senior Vice President







                                       21




 

<PAGE>
<PAGE>

                                 EQUISTAR CHEMICALS, LP



                                 By:
                                    ____________________________________________
                                    Name:  Eugene R. Allspach
                                    Title: President and Chief Operating Officer

            [Signature Page to Amended and Restated Parent Agreement]

                                   APPENDIX A
                                       TO
                                PARENT AGREEMENT

                           LIST OF RELATED AGREEMENTS

1.   Old Partnership Agreement.

2.   $345 million promissory note dated December 1, 1997, of Lyondell LP payable
     to the Partnership.

3.   Asset Contribution Agreement dated as of December 1, 1997, between
     Lyondell, Lyondell LP and the Partnership.

4.   Asset Contribution Agreement dated as of December 1, 1997, between
     Millennium Petrochemicals, Millennium LP and the Partnership.

5.   Bill of Sale and Assignment dated December 1, 1997 from Lyondell to the
     Partnership with respect to property specified on attached schedule.

6.   Assignment of Trademarks dated November 25, 1997 from Lyondell to the
     Partnership with respect to certain O&P Trademarks as listed on attached
     schedule.

7.   Assignment of Patents dated November 25, 1997 from Lyondell to the
     Partnership with respect to certain O&P Patents as listed on attached
     schedule.

8.   Assumption Agreement dated December 1, 1997 between Lyondell as Assignor
     and the Partnership as Assignee pursuant to the Asset Contribution
     Agreement with respect to the assumption by Assignee of certain
     liabilities.

9.   Master Intellectual Property Agreement dated December 1, 1997 by and
     between Lyondell and the Partnership.

10.  Assignment dated December 1, 1997 between Lyondell as "Assignor" and the
     Partnership as "Assignee" with respect to the contribution by Assignor of
     LCR Agreements.




                                       22




 

<PAGE>
<PAGE>

11.  Assignment dated December 1, 1997 between Lyondell and the Partnership, of
     Ground Lease (LMC) with respect to certain real property specified therein.

12.  Assignment dated December 1, 1997 between Lyondell and the Partnership, of
     Operating Agreement, Natural Gas Sales and Methanol Supply with respect to
     Lyondell Methanol Company.

13.  Administrative Services Agreement (as amended or otherwise modified from
     time to time) effective as of December 1, 1997 between the Partnership and
     Lyondell with respect to the provision of services as described in Appendix
     A attached.

14.  Letter Agreement dated December 1, 1997 between Lyondell and the
     Partnership with respect to the net payment by the Partnership to Lyondell
     for certain Administrative Services as described in Attachment 1 thereto.

15.  Assignment dated November 25, 1997, but effective December 1, 1997, from
     Lyondell to the Partnership, of leases specified therein (Channelview,
     Texas Golf Courses).

16.  Assignment dated November 25, 1997, but effective December 1, 1997, from
     Lyondell to the Partnership, of leases specified therein (Alvin, Texas).

17.  Assignment dated November 25, 1997, but effective as of December 1, 1997,
     from Lyondell to the Partnership, of leases specified therein (Plano,
     Texas).

18.  Assignment dated November 25, 1997, but effective as of December 1, 1997,
     from Lyondell to the Partnership, of leases specified therein (Chicago,
     Illinois - CALPERS Lease).

19.  Assignment of Sublease dated November 25, 1997, but effective as of
     December 1, 1997, from Lyondell to the Partnership, of leases specified
     therein (Chicago, Illinois - MATRIX Partners Sublease).

20.  Assignment dated November 25, 1997, but effective as of December 1, 1997,
     from Lyondell to the Partnership, of leases specified therein
     (Philadelphia, Pennsylvania).

21.  Assignment dated November 25, 1997, but effective December 1, 1997, from
     Lyondell to the Partnership, of leases specified therein (Victoria, Texas).

22.  Sublease Agreement dated November 25, 1997, but effective December 1, 1997,
     by and between Lyondell and the Partnership with respect to Office Lease
     Agreement dated December 31, 1985 and amended by 19 Amendments as described
     on Exhibit A as attached thereto (Administrative Office Space, OHC).

23.  General Warranty Deed dated November 25, 1997, but effective as of December
     1, 1997, from Lyondell to the Partnership with respect to certain real
     property specified therein (Channelview, Texas).





                                       23




 

<PAGE>
<PAGE>

24.  General Warranty Deed dated November 25, 1997, but effective as of December
     1, 1997, from Lyondell to the Partnership, with respect to certain real
     property specified therein (Mount Belvieu, Texas).

25.  General Warranty Deed dated, November 25, 1997, but effective December 1,
     1997, from Lyondell to the Partnership with respect to certain real
     property specified therein (Bayport, Texas).

26.  General Warranty Deed dated November 25, 1997, but effective December 1,
     1997, from Lyondell to the Partnership with respect to certain real
     property specified therein (Matagorda, Texas).

27.  Conveyance and Assignment of Easements, Rights of Way, and Licenses dated
     November 25, 1997, but effective as of December 1, 1997, from Lyondell to
     the Partnership with respect to certain real property specified therein
     (Pipeline Right of Way).

28.  Bill of Sale and Assignment dated December 1, 1997 from Millennium
     Petrochemicals to the Partnership with respect to the property set forth on
     Schedule A attached.

29.  Assignment of Trademarks dated November 21, 1997 between Millennium
     Petrochemicals as Assignor and the Partnership as Assignee with respect to
     the transfer of O&P Trademarks as set forth in the schedule attached.

30.  Assignment of Patents dated November 21, 1997 between Millennium
     Petrochemicals as Assignor and the Partnership as Assignee with respect to
     the transfer of O&P Patents as set forth in the schedule attached.

31.  Assumption Agreement effective as of December 1, 1997 between Millennium
     Petrochemicals as Assignor and the Partnership as Assignee pursuant to the
     Asset Contribution Agreement with respect to the assumption by the assignee
     of certain liabilities.

32.  Master Intellectual Property Agreement dated December 1, 1997 by and
     between Millennium Petrochemicals and the Partnership.

33.  Shared Services Agreement for Wastewater effective as of December 1, 1997
     by and between Millennium Petrochemicals and the Partnership.

34.  Shared Services Agreement for the LaPorte Complex effective as of December
     1, 1997 by and between Millennium Petrochemicals and the Partnership with
     respect to the services as specified therein and on the attachments and
     appendix.

35.  Shared Services Agreement for Water and Utility Instrument Air effective as
     of December 1, 1997 by and between Millennium Petrochemicals and the
     Partnership with respect to the services as specified therein and on the
     attachments, exhibits and appendix.




                                       24




 

<PAGE>
<PAGE>

36.  Shared Services Agreement for the Northlake Office Complex effective as of
     December 1, 1997 by and between Millennium Petrochemicals and the
     Partnership with respect to services as specified therein and on
     attachments and appendix.

37.  Agreement for Interim Study at the LaPorte Complex effective as of December
     1, 1997 by and between Millennium Petrochemicals and the Partnership.

38.  Fuel Stream Agreement effective as of December 1, 1997 by and between
     Millennium Petrochemicals and the Partnership.

39.  Electricity Service Agreement effective as of December 1, 1997 by and
     between Millennium Petrochemicals and the Partnership.

40.  Sales Agreement (Vinyl Acetate Monomer), effective December 1, 1997 between
     Millennium Petrochemicals as "Seller" and the Partnership as "Buyer".

41.  Sales Agreement (Ethylene), effective December 1, 1997 between the
     Partnership as "Seller" and Millennium Petrochemicals as "Buyer".

42.  Sales Agreement (Purified Hydrogen), between the Partnership as "Seller"
     and Millennium Petrochemicals as "Buyer" effective December 1, 1997.

43.  Sales Agreement (Natural Gas), effective December 1, 1997 between the
     Partnership as "Seller" and Millennium Petrochemicals as "Buyer".

44.  Letter Agreement dated December 1, 1997 between Millennium Petrochemicals
     and the Partnership regarding interim distribution logistics support.

45.  Letter Agreement dated December 1, 1997 between Millennium Petrochemicals
     and the Partnership with respect to the net payment for various shared
     services.

46.  Assignment of Railcar Lease dated December 3, 1997 by and between
     Millennium Petrochemicals Inc. as "Assignor" and the Partnership as
     "Assignee" (The Sumitomo Bank Leasing and Finance, Inc. Lease).

47.  Assignment of Leasehold dated November 25, 1997 by and between Millennium
     Petrochemicals and the Partnership with respect to certain real property
     specified therein (Tuscola, Illinois).

48.  Assignment of Leasehold dated December 1, 1997 by and between Millennium
     Petrochemicals and the Partnership with respect to certain real property
     specified therein (Fairport Harbor, Ohio).

49.  Assignment dated December 1, 1997 between Millennium Petrochemicals and the
     Partnership of lease specified therein (Clinton, Iowa).

50.  Quit Claim Deed dated December 1, 1997 from Millennium Petrochemicals to
     the Partnership with respect to certain real property specified therein
     (Clinton, Iowa).




                                       25



 

<PAGE>
<PAGE>

51.  Assignment dated December 1, 1997 between Millennium Petrochemicals and the
     Partnership of Credit Union Sublease (Clinton, Iowa).

52.  Assignment dated December 1, 1997 between Millennium Petrochemicals and the
     Partnership of Appurtenant Easements (Clinton, Iowa).

53.  Assignment dated December 1, 1997 between Millennium Petrochemicals and the
     Partnership of Dock Lease and Agreement (Clinton, Iowa).

54.  Assignment dated December 1, 1997 between Millennium Petrochemicals and the
     Partnership of Sub-lease Option to Purchase Agreement (Clinton, Iowa).

55.  Assignment dated December 1, 1997 between Millennium Petrochemicals and the
     Partnership of Cellular Telephone Sublease (Clinton, Iowa).

56.  Assignment dated December 1, 1997 between Millennium Petrochemicals and the
     Partnership of Farm Leases (Clinton, Iowa).

57.  Assignment dated December 1, 1997 between Millennium Petrochemicals and the
     Partnership of Eastern Iowa Propane Lease (Clinton, Iowa).

58.  Lease Agreement dated December 1, 1997 between Millennium Petrochemicals
     and the Partnership with respect to certain real property specified therein
     (Lease for Cincinnati Research Laboratory).

59.  Warranty Deed dated December 1, 1997 from Millennium Petrochemicals to the
     Partnership with respect to certain Real Property specified therein
     (Clinton, Iowa).

60.  General Warranty Deed dated December 1, 1997 from Millennium Petrochemicals
     to the Partnership with respect to certain real property specified therein
     (LaPorte, Texas).

61.  Letter agreement dated December 1, 1997 from Millennium Petrochemicals to
     the Partnership with respect to Millennium Petrochemicals agreement to
     provide the Partnership an option on approximately 20+ acres of land
     (LaPorte Expansion Land).

62.  Warranty Deed dated November 25, 1997 from Millennium Petrochemicals to the
     Partnership with respect to certain real property specified therein
     (Morris, Illinois).

63.  General Warranty Deed dated November 25, 1997 from Millennium
     Petrochemicals to the Partnership with respect to certain real property
     specified therein (Port Arthur, Texas).

64.  General Warranty Deed dated November 25, 1997 from Millennium
     Petrochemicals to the Partnership with respect to certain real property
     specified therein (Chocolate Bayou, Texas).

65.  Warranty Deed dated December 1, 1997 from Millennium Petrochemicals to the
     Partnership with respect to certain real property specified therein
     (Tuscola, Illinois).




                                       26




 

<PAGE>
<PAGE>

66.  General Warranty Deed dated December 1, 1997 from Millennium Petrochemicals
     to the Partnership with respect to certain real property specified therein
     (Heath, Ohio)

67.  General Warranty Deed dated November 25, 1997 from Millennium
     Petrochemicals to the Partnership with respect to certain real property
     specified therein (Crockett, Texas)

68.  Deed dated November 24, 1997 from Millennium Petrochemicals to the
     Partnership with respect to certain real property specified therein
     (Newark, New Jersey).

69.  Grant Deed dated December 1, 1997 from Millennium Petrochemicals to the
     Partnership with respect to certain real property specified therein
     (Anaheim, California).

70.  Limited Warranty Deed dated December 1, 1997 from the Partnership to
     Millennium Petrochemicals with respect to certain real property specified
     therein (the Northlake Drive 0.1553 Acre Parcel Cincinnati-Research
     Center-Northlake, Ohio).

71.  General Warranty Deed (Conveyance between Adjoining Lot Owners) dated
     December 1, 1997 from Millennium Petrochemicals to the Partnership with
     respect to certain real property specified therein (Cincinnati-Research
     Center-Northlake, Ohio).

72.  General Warranty Deed (Conveyance between Adjoining Lot Owners) dated
     December 1, 1997 from Millennium Petrochemicals to the Partnership with
     respect to certain real property specified therein, the Northlake Drive
     0.0987 Acre Parcel (Cincinnati-Research Center-Northlake, Ohio).

73.  General Warranty Deed dated December 1, 1997 from Millennium Petrochemicals
     to the Partnership with respect to certain real property specified therein,
     the East Kemper Road and Northlake Drive 25.0864 Acre Parcel
     (Cincinnati-Research Center-Northlake).

74.  Declaration of Easements and Restrictive Covenants dated December 1, 1997
     by Millennium Petrochemicals and the Partnership with respect to certain
     real property specified therein (Cincinnati-Research Center-Northlake,
     Ohio).

75.  Assignment and Assumption dated December 1, 1997 by and between Millennium
     Petrochemicals and the Partnership, of Service Agreement
     (Cincinnati-Research Center-Northlake, Ohio).

76.  Letter Agreement dated November 20, 1997 from Millennium Petrochemicals to
     the Partnership with respect to Fiber-Optic Cable System, Northlake Drive
     Property, Cincinnati, Ohio (Cincinnati-Research Center-Northlake, Ohio).

77.  Parking Agreement dated December 1, 1997 between Millennium Petrochemicals
     and the Partnership with respect to additional parking at the Northlake
     Facility (Cincinnati-Research Center-Northlake, Ohio).

78.  General Warranty Deed dated December 1, 1997 from Millennium Petrochemicals
     to the Partnership with respect to certain real property specified therein
     (Fairport Harbor, Ohio).




                                       27




 

<PAGE>
<PAGE>

79.  Assignment of Easements dated November 25, 1997 from Millennium
     Petrochemicals to the Partnership with respect to certain real property
     specified therein (Chocolate Bayou, Texas).

80.  Easement Agreement dated December 1, 1997 to Millennium Petrochemicals from
     the Partnership with respect to certain real property specified therein
     (LaPorte, Texas).

81.  Easement Agreement dated December 1, 1997 to the Partnership from
     Millennium Petrochemicals with respect to certain real property specified
     therein (LaPorte, Texas).

82.  Assignment (Mont Belvieu Pipeline Easements) dated November 25, 1997 from
     Millennium Petrochemicals to the Partnership with respect to certain real
     property specified therein.

83.  General Warranty (Mont Belvieu Pipeline Fee Parcels) dated November 25,
     1997 from Millennium Petrochemicals to the Partnership with respect to
     certain real property specified therein.

84.  Partnership Agreement.

85.  Agreement and Plan of Merger and Asset Contribution dated as of May 15,
     1998, among Occidental GP, Occidental LP1, Occidental LP2, OPI and the
     Partnership.

86.  Sales Agreement (Ethylene) dated as of May 15, 1998 by and between the
     Partnership and OCC with respect to the sale of Ethylene by the Partnership
     to OCC.

87.  Operating Agreement dated as of May 15, 1998 by and between the Partnership
     and OCC with respect to OCC providing certain services to the Partnership
     after May 15, 1998.

88.  Toll Processing Agreement dated May 15, 1998 between the Partnership and
     OCC with respect to Ashtabula EO/EG tolling.

89.  Amended and Restated Indemnity Agreement among OCC, Occidental GP,
     Occidental LP1, Occidental LP2, Lyondell GP, Lyondell LP, Millennium GP,
     Millennium LP and Millennium America Inc.

90.  Letter Agreement dated May 15, 1998 between OCC and the Partnership with
     respect to OCC providing a guarantee for the collection of $419,700,000 of
     Partnership debt.

91.  Letter Agreement dated May 15, 1998 between OCC and the Partnership with
     respect to the prepayment or restructuring of the Occidental Assumed Debt.

92.  Promissory Note for $419,700,000 dated May 15, 1998 of the Partnership
     payable to Occidental LP2.

93.  Promissory Note for $75 million dated May 15, 1998 of the Partnership
     payable to Millennium LP.






                                       28





 

<PAGE>
<PAGE>

94.  Bill of Sale and Assignment dated May 15, 1998 from OCC to Occidental LP1
     with respect to property specified on attached schedule.

95.  Bill of Sale and Assignment dated May 15, 1998 from Occidental LP1 to the
     Partnership with respect to property specified on attached schedule.

96.  Patent Assignment dated May 15, 1998 from OCC to the Partnership with
     respect to patents as listed on attached schedule.

97.  Assumption Agreement dated May 15, 1998 between Occidental LP1, Occidental
     LP2 and Occidental GP, as Assignors, and the Partnership, as Assignee,
     pursuant to the Agreement and Plan of Merger and Asset Contribution with
     respect to the assumption by Assignee of certain liabilities.

98.  Master Intellectual Property Agreement dated May 15, 1998 by and between
     the Partnership and OCC.

99.  Assignment of Partnership Interests dated May 15, 1998 from Occidental GP
     to the Partnership with respect to interests in PD Glycol, a Texas limited
     partnership.

100. Assignment of Leases dated May 15, 1998 from OCC to the Occidental LP1 with
     respect to leases specified therein.

101. Assignment of Lease and Act of Exchange dated May 15, 1998 from Occidental
     LP1 to the Partnership with respect to the lease specified therein,
     together with such lease.

102. Assignment of Leases dated May 15, 1998 from Occidental LP1 to the
     Partnership with respect to leases specified therein.

103. Assumption Agreement dated May 15, 1998 between OPI as Assignor and the
     Partnership as Assignee with respect to Lease Intended for Security dated
     December 18, 1991 ($205 million).

104. Termination and Release of Guaranty dated May 15, 1998 between Lyondell and
     OCC with respect to the termination of Lyondell guaranty of certain
     Partnership railcar leases.

105. Sublease dated May 15, 1998 from OCC to the Partnership with respect to
     1990 railcar lease.

106. Sublease dated May 15, 1998 from OPI to the Partnership with respect to
     1995 railcar lease.

107. Tax Indemnity Agreement dated May 15, 1998 between OCC and the Partnership
     with respect to Sublease of 1990 railcar lease.

108. Tax Indemnity Agreement dated May 15, 1998 between OPI and the Partnership
     with respect to Sublease of 1998 railcar lease.




                                       29




 

<PAGE>
<PAGE>

109. Master Arbitration Amendment to Related Agreements dated May 15, 1998
     between the Partnership, Lyondell and Millennium.

110. First Amendment to Lyondell Asset Contribution Agreement dated May 15, 1998
     between the Partnership, Lyondell and Lyondell LP.

111. First Amendment to Millennium Asset Contribution Agreement dated May 15,
     1998 between the Partnership, Millennium Petrochemicals and Millennium LP.

112. Transition Services Agreement between the Partnership and OCC to be entered
     into pursuant to the Operating Agreement with respect to OCC providing
     certain services to the Partnership.

113. Pipeline Acquisition Agreement dated as of May 15, 1998 between OCC and the
     Partnership with respect to the Cyclohexane pipeline.

114. Trademark License Agreement dated as of May 15, 1998 among OCC, Occidental
     and the Partnership with respect to the trademarks as set forth on the
     schedule attached.

115. Assignment of Excluded Assets dated May 14, 1998 between OPI as Assignor
     and OCC as Assignee with respect to certain assets described therein.

116. Assumption Agreement dated May 14, 1998 between OPI as Assignor and OCC as
     Assignee with respect to certain liabilities described therein.

117. Termination Agreement and General Release dated May 15, 1998 among
     Occidental, OPI, Occidental LP2 and Occidental Holding Company with respect
     to certain intercompany debts.

118. Assumption Agreement dated May 15, 1998 between OPI as Assignor and
     Occidental LP2 as Assignee with respect to certain intercompany debts.

119. Assignment and Assumption Agreement dated May 15, 1998 between OCC as
     Assignor and the Partnership as Assignee with respect to Lease intended for
     security dated March 28, 1994 by and between OCC and Pitney Bowes Credit
     Corporation.

120. Letter from Lyondell to OCC and the Partnership regarding PVC technology.

121. Agreement regarding provision by the Partnership of certain support
     facilities associated with the Lake Charles propylene fractionation unit to
     be entered into pursuant to the Operating Agreement.



                                   APPENDIX B
                                       TO
                                PARENT AGREEMENT

                          DISPUTE RESOLUTION PROCEDURES






                                       30




 

<PAGE>
<PAGE>

     (1) (Binding and Exclusive Means. The dispute resolution provisions set
forth in this Appendix B shall be the binding and exclusive means to resolve all
disputes arising under this Agreement (each a "Dispute").

     (2) Standards and Criteria. In resolving any Dispute, the standards and
criteria for resolving such dispute shall, unless the Parties involved in the
Dispute in their discretion jointly stipulate otherwise, be as set forth in
Appendix 1 to this Appendix B.

     (3) ADR and Binding Arbitration Procedures. If a Dispute arises, the
following procedures shall be implemented (with references to "Parties" meaning
the Parties involved in the Dispute):

     (a) Any Party may at any time invoke the dispute resolution procedures set
forth in this Appendix B as to any Dispute by providing written notice of such
action to the other Parties, and all Parties within five Business Days after
such notice shall schedule a meeting to be held in Houston, Texas between the
Parties. The meeting shall occur within 10 Business Days after notice of the
meeting is delivered to the other Parties. The meeting shall be attended by
representatives of each Party having decision-making authority regarding the
Dispute as well as the dispute resolution process and who shall attempt in a
commercially reasonable manner to negotiate a resolution of the Dispute.

    (b) The representatives of the Parties shall cooperate in a commercially
reasonable manner and shall explore whether techniques such as mediation,
minitrials, mock trials or other techniques of alternative dispute resolution
might be useful. In the event that a technique of alternative dispute resolution
is so agreed upon, a specific timetable and completion date for its
implementation shall also be agreed upon. The representatives will continue to
meet and discuss settlement until the date (the "Interim Decision Date") that is
the earliest to occur of the following events: (i) an agreement shall be reached
by the Parties resolving the Dispute; (ii) one of the Parties shall determine
and notify the other Parties in writing that no agreement resolving the Dispute
is likely to be reached; (iii) if a technique of alternative dispute resolution
is agreed upon, the completion date therefor shall occur without the Parties
having resolved the Dispute; or (iv) if another technique of alternative dispute
resolution is not agreed upon, two full meeting days (or such other time period
as may be agreed upon) shall expire without the Parties having resolved the
Dispute.

    (c) If, as of the Interim Decision Date, the Parties have not succeeded in
negotiating a resolution of the dispute pursuant to subsection (b), the Parties
shall proceed under subsections (d), (e) and (f).

     (d) After satisfying the requirements above, such Dispute shall be
submitted to mandatory and binding arbitration at the election of any Party
involved in the Dispute (the "Disputing Party"). The arbitration shall be
subject to the Federal Arbitration Act as supplemented by the conditions set
forth in this Appendix B. The arbitration shall be conducted in accordance with
the Commercial Arbitration Rules of the American Arbitration Association in
effect on the date the notice of arbitration is served, other than as
specifically modified herein. In the absence of an agreement to the contrary,
the arbitration shall be held in Houston, Texas. The Arbitrator (as defined
below) will allow reasonable discovery in the forms permitted by the





                                       31


 

<PAGE>
<PAGE>

Federal Rules of Civil Procedure, to the extent consistent with the purpose of
the arbitration. During the pendency of the Dispute, each Party shall make
available to the Arbitrator and the other Parties all books, records and other
information within its control requested by the other Parties or the Arbitrator
subject to the confidentiality provisions contained herein, and provided that no
such access shall waive or preclude any objection to such production based on
any privilege recognized by law. Recognizing the express desire of the Parties
for an expeditious means of dispute resolution, the Arbitrator may limit the
scope of discovery between the Parties as may be reasonable under the
circumstances. In deciding the substance of the Parties' claims, the laws of the
State of Delaware shall govern the construction, interpretation and effect of
this Agreement (including this Appendix B) without giving effect to any conflict
of law principles. The arbitration hearing shall be commenced promptly and
conducted expeditiously, with each Party involved in the Dispute being allocated
an equal amount of time for the presentation of its case. Unless otherwise
agreed to by the Parties, the arbitration hearing shall be conducted on
consecutive days. Time is of the essence in the arbitration proceeding, and the
Arbitrator shall have the right and authority to issue monetary sanctions
against any of the Parties if, upon a showing of good cause, that Party is
unreasonably delaying the proceeding. To the fullest extent permitted by law,
the arbitration proceedings and award shall be maintained in confidence by the
Arbitrator and the Parties.

    (e) The Disputing Party shall notify the American Arbitration Association
("AAA") and the other Parties in writing describing in reasonable detail the
nature of the Dispute (the "Dispute Notice"). The arbitrator (the "Arbitrator")
shall be selected within 15 days of the date of the Dispute Notice by all of the
Parties from the members of a panel of arbitrators of the AAA or, if the AAA
fails or refuses to provide a list of potential arbitrators, of the Center for
Public Resources and shall be experienced in commercial arbitration. In the
event that the Parties are unable to agree on the selection of the Arbitrator,
the AAA shall select the Arbitrator, using the criteria set forth in this
Appendix B, within 30 days of the date of the Dispute Notice. In the event that
the Arbitrator is unable to serve, his or her replacement will be selected in
the same manner as the Arbitrator to be replaced. The Arbitrator shall be
neutral. The Arbitrator shall have the authority to assess the costs and
expenses of the arbitration proceeding (including the arbitrators', and
attorneys' fees and expenses) against any or all Parties.

     (f) The Arbitrator shall decide all Disputes and all substantive and
procedural issues related thereto, and shall enforce this Agreement in
accordance with its terms. Without limiting the generality of the previous
sentence, the Arbitrator shall have the authority to issue injunctive relief;
however, the Arbitrator shall not have any power or authority to (i) award
consequential, incidental, indirect or punitive damages or (ii) amend this
Agreement. The Arbitrator shall render the arbitration award, in writing, within
20 days following the completion of the arbitration hearing, and shall set forth
the reasons for the award. In the event that the Arbitrator awards monetary
damages in favor of any Party, the Arbitrator must certify in the award that no
indirect, consequential, incidental, indirect or punitive damages are included
in such award. If the Arbitrator's decision results in a monetary award, the
interest to be granted on such award, if any, and the rate of such interest
shall be determined by the Arbitrator in his or her discretion. The arbitration
award shall be final and binding on the Parties, and judgment thereon may be
entered in any court of competent jurisdiction, and may not be appealed except
to the extent permitted by the Federal Arbitration Act.




                                       32





 

<PAGE>
<PAGE>

     (4) Continuation of Business. Notwithstanding the existence of any Dispute
or the pendency of any procedures pursuant to this Appendix B, the Parties agree
and undertake that all payments not in dispute shall continue to be made and all
obligations not in dispute shall continue to be performed.

                                   Appendix 1

     (a) (First priority shall be given to maximizing the consistency of the
resolution of the Dispute with the satisfaction of all express obligations of
the Parties and their Affiliates as set forth in the Agreement.

     (b) Second priority shall be given to resolution of the Dispute in a manner
which best achieves the objectives of the business activities and arrangements
under the Agreement and permits the Parties to realize the benefits intended to
be afforded thereby.

     (c) Third priority shall be given to such other matters, if any, as the
Parties or the Arbitrator determine to be appropriate under the circumstances.




                                       33



<PAGE>
 



<PAGE>
                                                                    EXHIBIT 11.1
 
                           MILLENNIUM CHEMICALS INC.
                       COMPUTATION OF PER SHARE EARNINGS
 
<TABLE>
<CAPTION>
                                                                                    WEIGHTED
                                                                                    AVERAGE         EARNINGS
                                                                      SHARES          # OF             PER
                                                                    OUTSTANDING      SHARES           SHARE
                                                                    -----------    ----------    ---------------
<S>                                                                 <C>            <C>           <C>
BASIC
Shares of Common Stock outstanding at December 31, 1996..........    74,412,283    74,412,283
                                                                    -----------    ----------
                                                                    -----------    ----------
     Income from continuing operations...........................                                $    33,000,000
                                                                                                 ---------------
     Weighted average shares outstanding.........................                                     74,412,283
     Basic earnings per share....................................                                $          0.44
     Net loss....................................................                                $(2,701,000,000)
                                                                                                 ---------------
     Weighted average shares outstanding.........................                                     74,412,283
     Basic loss per share........................................                                $        (36.30)
Shares of Common Stock outstanding at December 31, 1996..........    74,412,283    74,412,283
     August, 1997................................................        56,006        23,335
     October, 1997...............................................         4,092         1,023
     December, 1997..............................................       627,267        47,947
                                                                    -----------    ----------
Shares of Common Stock outstanding at December 31, 1997..........    75,099,648    74,484,588
                                                                    -----------    ----------
                                                                    -----------    ----------
 
     Income from continuing operations...........................                                $   188,000,000
                                                                                                 ---------------
                                                                                                 ---------------
     Weighted average shares outstanding.........................                                     74,484,588
     Basic earnings per share....................................                                $          2.52
     Net income..................................................                                $   185,000,000
                                                                                                 ---------------
     Weighted average shares outstanding.........................                                     74,484,588
     Basic earnings per share....................................                                $          2.48
Shares of Common Stock outstanding at December 31, 1997..........    75,099,648    75,099,648
     April, 1998.................................................         5,600         4,200
     July, 1998..................................................        36,000        18,000
     October, 1998...............................................        11,444         2,861
     December, 1998..............................................        18,000         1,500
                                                                    -----------    ----------
Shares of Common Stock oustanding at December 31, 1998...........    75,170,692    75,126,209
                                                                    -----------    ----------
                                                                    -----------    ----------
     Income from continuing operations...........................                                $   163,000,000
                                                                                                 ---------------
     Weighted average shares outstanding.........................                                     75,126,209
     Basic earnings per share....................................                                $          2.17
     Net income..................................................                                $   164,000,000
                                                                                                 ---------------
     Weighted average shares outstanding.........................                                     75,126,209
     Basic earnings per share....................................                                $          2.18
</TABLE>
 <PAGE>
<PAGE>
 
(table continued from previous page)
 
<TABLE>
<CAPTION>
                                                                                    WEIGHTED
                                                                                    AVERAGE         EARNINGS
                                                                      SHARES          # OF             PER
                                                                    OUTSTANDING      SHARES           SHARE
                                                                    -----------    ----------    ---------------
<S>                                                                 <C>            <C>           <C>
DILUTED
Shares of Common Stock outstanding at December 31, 1996..........    74,412,283    74,412,283
                                                                    -----------    ----------
     Options.....................................................       523,000        --
     Performance-based restricted stock..........................     2,184,242        --
     Time-vested restricted stock................................       728,080        --
                                                                    -----------
     Shares of Common Stock and Common Stock equivalents
       outstanding at December 31, 1996..........................    77,847,605    74,412,283
                                                                    -----------    ----------
                                                                    -----------    ----------
 
     Income from continuing operations...........................                                $    33,000,000
                                                                                                 ---------------
     Weighted average shares outstanding.........................                                     74,412,283
     Diluted earnings per share..................................                                $          0.44
     Net loss....................................................                                $(2,701,000,000)
                                                                                                 ---------------
     Weighted average shares outstanding.........................                                     74,412,283
     Diluted earnings per share..................................                                $        (36.30)
Shares of Common Stock outstanding at December 31, 1996..........    74,412,283    74,412,283
     August, 1997................................................        56,006        23,335
     October, 1997...............................................         4,092         1,023
     December, 1997..............................................       627,267        47,947
     Options.....................................................       404,000        31,846
     Time-vested restricted stock................................       544,323        --
     Performance-based restricted stock..........................     1,632,971       130,000
                                                                    -----------    ----------
Shares of Common Stock and Common Stock equivalents outstanding
  at December 31, 1997...........................................    77,680,942    74,646,434
                                                                    -----------    ----------
                                                                    -----------    ----------
     Income from continuing operations...........................                                $   188,000,000
                                                                                                 ---------------
     Weighted average shares outstanding.........................                                     74,646,434
     Diluted earnings per share..................................                                $          2.52
     Net income..................................................                                $   185,000,000
                                                                                                 ---------------
     Weighted average shares outstanding.........................                                     74,646,434
     Diluted earnings per share..................................                                $          2.48
Shares of Common Stock outstanding at December 31, 1997..........    75,099,648    75,099,648
     April, 1998.................................................         5,600         4,200
     July, 1998..................................................        36,000        18,000
     October, 1998...............................................        11,444         2,861
     December, 1998..............................................        18,000         1,500
     Options.....................................................       505,000       119,939
     Time-vested restricted stock................................       614,327       357,813
     Performance-based restricted stock..........................     1,842,982        92,687
                                                                    -----------    ----------
Shares of Common Stock and Common Stock equivalents at December
  31, 1998.......................................................    78,133,001    75,696,648
                                                                    -----------    ----------
                                                                    -----------    ----------
     Income from continuing operations...........................                                $   163,000,000
                                                                                                 ---------------
     Weighted average shares outstanding.........................                                     75,696,648
     Diluted earnings per share..................................                                $          2.15
     Net income..................................................                                $   164,000,000
                                                                                                 ---------------
     Weighted average shares outstanding.........................                                     75,696,648
     Diluted earnings per share..................................                                $          2.17
</TABLE>


 <PAGE>


<PAGE>


              "Exerpts from 1998 Annual Report to Shareholders"

                           MILLENNIUM CHEMICALS INC.
                                ---------------
                         INDEX TO THE FINANCIAL REVIEW


                                       18
                     Selected and Quarterly Financial Data

                                       19
                              Segment Information

                                       20
Management's Discussion and Analysis of Financial Condition and Results of
                                   Operations

                                       29
                       Report of Independent Accountants

                                       30
                          Consolidated Balance Sheets

                                       31
                     Consolidated Statements of Operations

                                       32
                     Consolidated Statements of Cash Flows

                                       33
           Consolidated Statements of Changes in Shareholders' Equity

                                       34
                   Notes to Consolidated Financial Statements


                DISCLOSURE CONCERNING FORWARD-LOOKING STATEMENTS

All statements, other than statements of historical fact, included in this
annual report to shareholders, including, without limitation, the statements
under "Management's Discussion and Analysis of Financial Condition and Results
of Operations" are, or may be deemed to be, forward-looking statements within
the meaning of Section 21E of the Securities Exchange Act of 1934 (the "Exchange
Act"). Important factors that could cause actual results to differ materially
from those discussed in such forward-looking statements ("Cautionary
Statements") include: the balance between industry production capacity and
operating rates, on the one hand, and demand for the products of Millennium
Chemicals Inc. (the "Company") and Equistar Chemicals, LP ("Equistar"),
including titanium dioxide, ethylene and polyethylene, on the other hand; the
economic trends in the United States and other countries which serve as the
Company's and Equistar's marketplace; customer inventory levels; competitive
pricing pressures; the cost and availability of the Company's feedstocks and
other raw materials, including natural gas and ethylene; operating interruptions
(including leaks, explosions, fires, mechanical failures, unscheduled downtime,
transportation interruptions, spills, releases and other environmental risks);
competitive technology positions; failure to achieve the Company's or Equistar's
productivity improvement and cost-reduction targets or to complete construction
projects on schedule; difficulties in addressing Year 2000 issues on a timely
basis by the Company, Equistar, their suppliers or their customers; and other
unforeseen circumstances.

Some of these Cautionary Statements are discussed in more detail under
"Management's Discussion and Analysis of Financial Condition and Results of
Operations." All subsequent written and oral forward-looking statements
attributable to the Company or persons acting on behalf of the Company are
expressly qualified in their entirety by such Cautionary Statements.


                                                                              17


<PAGE>



<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                ---------------
                     SELECTED AND QUARTERLY FINANCIAL DATA
                    (DOLLARS IN MILLIONS, EXCEPT SHARE DATA)

<TABLE>
<CAPTION>
============================================================================================================================
SELECTED FINANCIAL DATA                                                                         Three Months   Fiscal Year
                                                                                                   Ended          Ended
                                                        Year Ended December 31                  December 31    September 30
                                             --------------------------------------------       -----------    ------------
                                             1998(1)     1997(2)     1996            1995           1994           1994
- ----------------------------------------------------------------------------------------------------------------------------
<S>                                          <C>         <C>         <C>             <C>            <C>            <C>
INCOME STATEMENT DATA:
Net sales                                   $1,597      $3,048      $3,040          $3,156         $  723         $2,610
Operating income                               205         449         283(3)          787            177            268
Income from continuing operations              163         188          83(3)          296             68             34
Basic earnings per share from
 continuing operations                        2.17        2.52        0.44            --             --              --
Net income (loss)                              164         185      (2,701)(3)(4)      349             96             94
Dividends declared per share plus United
 Kingdom Advance Corporation Tax              0.60        0.60        --              --             --              --

BALANCE SHEET DATA (AT PERIOD END)
Total assets(5)                             $4,100      $4,326      $5,601          $9,678         $9,603         $9,268
Total liabilities                            2,507       2,862       4,283           4,877          4,745          4,630
Minority interest                               15        --          --              --             --             --
Shareholders' equity(5)                      1,578       1,464       1,318           4,801          4,858          4,638

OTHER DATA (WITH RESPECT TO
 CONTINUING OPERATIONS)
Depreciation and amortization               $  102      $  203      $  201          $  207         $   50         $  213
Capital expenditures                           215         152         285             247             23             89
</TABLE>

(1) Includes six months of earnings of the Brazilian TiO2 business acquired on
July 1, 1998, and twelve months of earnings of the French TiO2 business acquired
on December 31, 1997.

(2) Includes 11 months of polyethylene, alcohol and related products businesses
which were contributed to Equistar on December 1, 1997. Since December 1, 1997,
the equity method is used to account for the Company's partnership interest.

(3) Includes the effects of non recurring charges of $75 ($48 after tax) to
reduce the carrying value of certain facilities employed in the sulfate process
manufacturing of TiO2 and to provide for the costs associated with the closure
of certain of these facilities, as described in Note 5 to the Consolidated
Financial Statements of the Company.

(4) Includes the effects of a non cash after tax charge of $3,206 relating to
one of the Discontinued Businesses (as defined in Note 5 to the Consolidated
Financial Statements of the Company) as a result of the Company's adoption of
the long lived asset carrying value methodology prescribed by SFAS 121, as
described in Note 5 to the Consolidated Financial Statements of the Company. The
Discontinued Businesses were sold to Hanson on October 6, 1996.

(5) Includes net assets of the Discontinued Businesses: $3,772 at December 31,
1995; $3,757 at December 31, 1994; and, $3,757 at September 30, 1994.


<TABLE>
<CAPTION>
============================================================================================================+
QUARTERLY FINANCIAL DATA                                     1st Qtr.     2nd Qtr.     3rd Qtr.     4th Qtr.
- -------------------------------------------------------------------------------------------------------------
<S>                                                              <C>          <C>          <C>          <C>
1998
Net sales                                                      $ 399        $ 408        $ 408        $ 382
Operating income                                                  58           66           58           23
Net income from continuing operations                             46           46           32           39
Net income                                                        50           43           32           39
Basic earnings per share from continuing operations            $0.61        $0.61        $0.43        $0.52
Basic earnings per share                                       $0.67        $0.57        $0.43        $0.52
Diluted earnings per share from continuing operations          $0.61        $0.62        $0.42        $0.52
Diluted earnings per share                                     $0.66        $0.57        $0.42        $0.52

1997
Net sales                                                      $ 794        $ 813        $ 816        $ 625
Operating income                                                  66          132          157           94
Net income from continuing operations                             17           85           70           16
Net income                                                        20           82           67           16
Basic earnings per share from continuing operations            $0.23        $1.14        $0.94        $0.21
Basic earnings per share                                       $0.27        $1.10        $0.90        $0.21
Diluted earnings per share from continuing operations          $0.23        $1.14        $0.94        $0.21
Diluted earnings per share                                     $0.27        $1.10        $0.90        $0.21
</TABLE>

18



<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                ---------------
                              SEGMENT INFORMATION
                             (DOLLARS IN MILLIONS)

<TABLE>
<CAPTION>
==================================================================================================
                                                                  1998         1997         1996
- --------------------------------------------------------------------------------------------------
<S>                                                                <C>          <C>          <C>
NET SALES
Titanium dioxide and related products                            $1,203       $  843       $  868
Acetyls                                                             253          271          240
Specialty chemicals                                                 141          148          127
Polyethylene, alcohol and related products(1)                      --          1,786        1,805
                                                                 ------       ------       ------
 Total                                                           $1,597       $3,048       $3,040
                                                                 ======       ======       ======

OPERATING INCOME
Titanium dioxide and related products(2)                         $  136       $   60       $    7
Acetyls                                                              26           39           12
Specialty chemicals                                                  43           42           36
Polyethylene, alcohol and related products(1)                      --            308          228
                                                                 ------       ------       ------
 Total                                                           $  205       $  449       $  283
                                                                 ======       ======       ======

DEPRECIATION AND AMORTIZATION
Titanium dioxide and related products                            $   72       $   44       $   46
Acetyls                                                              25           28           24
Specialty chemicals                                                   5            6            4
Polyethylene, alcohol and related products(1)                       --           125          127
                                                                 ------       ------       ------
 Total                                                           $  102       $  203       $  201
                                                                 ======       ======       ======

CAPITAL EXPENDITURES
Titanium dioxide and related products                            $  154       $   77       $   81
Acetyls                                                              31           24           65
Specialty chemicals                                                  27           10           12
Polyethylene, alcohol and related products(1)                      --             41          127
Corporate                                                             3         --           --
                                                                 ------       ------       ------
 Total                                                           $  215       $  152       $  285
                                                                 ======       ======       ======

IDENTIFIABLE ASSETS
Titanium dioxide and related products                            $1,459       $1,093
Acetyls                                                             792          824
Specialty chemicals                                                 133          108
Corporate(3)                                                      1,716        2,301
                                                                 ------       ------
 Total                                                           $4,100       $4,326
                                                                 ======       ======
</TABLE>

(1) The polyethylene, alcohol and related products businesses were contributed
to Equistar on December 1, 1997. The Company's partnership interest in Equistar
is accounted for using the equity method; accordingly, the Company's underlying
interest in the operations of Equistar have been excluded in the segment
disclosures above since December 1, 1997.

(2) 1996 includes non-recurring charges of $75 ($48 after tax) to reduce the
carrying value of certain facilities employed in the sulfate-process
manufacturing of TiO2 and to provide for the costs associated with the closure
of certain of these facilities, as described in Note 5 to the Consolidated
Financial Statements of the Company.

(3) Corporate assets consists primarily of cash and cash equivalents, equity
investments and other assets.


                                                                              19





<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                ---------------
                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS


                                  INTRODUCTION

     Millennium Chemicals Inc.'s (the "Company") principal operations are
grouped into four business segments: titanium dioxide and related products;
acetyls; specialty chemicals; and polyethylene, alcohol and related products.
The Company's businesses comprising the polyethylene, alcohol and related
products segment were contributed to Equistar Chemicals, LP ("Equistar"), a
joint venture partnership formed by the Company and Lyondell Chemical Company
("Lyondell") on December 1, 1997, to own and operate the olefin and polymer
businesses of the partners. Results of these businesses prior to the formation
of Equistar are consolidated. On May 15, 1998, the Company's 43% interest in
Equistar was reduced to 29.5% with the addition of the ethylene, propylene,
ethylene oxide and derivatives businesses of Occidental Petroleum Corporation's
("Occidental") chemical subsidiary. The results of Equistar are accounted for
using the equity method. See Note 2 to the Consolidated Financial Statements.

     The following information should be read in conjunction with the Company's
Consolidated Financial Statements and Notes thereto. In connection with the
forward-looking statements that appear in the following information, the
Cautionary Statements referred to in "Disclosure Concerning Forward-Looking
Statements" should be reviewed carefully.


                         HISTORICAL CYCLICALITY OF THE
                              COMPANY'S OPERATIONS

     The markets for ethylene and polyethylene, in which the Company
participates through its interest in Equistar, are highly cyclical, resulting in
volatile profits over the business cycle. The global markets for titanium
dioxide ("TiO2") and acetyls are also cyclical, although to a lesser degree. In
contrast, the Company believes that, over a business cycle, the markets for
specialty chemicals are generally more stable in terms of industry demand,
selling prices and operating margins.

     Demand for ethylene and its derivatives has fluctuated from year to year.
However, over the last ten years, demand for ethylene and its primary
derivative, polyethylene, has increased an average of approximately 4% per year.
The industry is particularly sensitive to capacity additions, and producers have
historically experienced alternating periods of inadequate ethylene and/or
polyethylene capacity, resulting in increased selling prices and operating
margins, followed by periods of large capacity additions, resulting in declining
capacity utilization rates, selling prices and operating margins. The
cyclicality of petrochemicals' profitability is further influenced by
fluctuations in the price of feedstocks for ethylene, which generally follow
price trends for crude oil. Producers of ethylene for merchant supply to
unaffiliated customers typically experience greater variations in profitability
when industry supply and demand relationships are at extremes, in comparison to
more integrated competitors. Equistar currently consumes or sells approximately
75% of its ethylene production in its or its partners' downstream derivative
facilities, which has the effect of reducing volatility. It is not possible to
predict accurately the effect that future changes in feedstock costs, market
conditions and other factors will have on this segment's profitability.

     TiO2 is considered an intermediate, performance chemical, the demand for
which is influenced by changes in the gross domestic product of various regions
of the world. The worldwide TiO2 industry has experienced cyclical demand,
supply and pricing, although to a lesser degree than the petrochemical industry.
Demand for TiO2, which has fluctuated from year to year and varies among the
regional marketplaces in the world, has increased an average of approximately 3%
per year over the last five years. The industry is also sensitive to changes in
its customers' marketplaces, which are primarily the paint and coatings,
plastics and paper industries. In recent history, consolidations and negative
business conditions within certain of those industries have put pressure on TiO2
prices as companies compete to keep volumes placed. Recently, the TiO2 industry
has experienced consolidation as producers aim to stay competitive through
programs to reduce overall cost structures. TiO2 is manufactured using two
different technologies, the environmentally preferred chloride process and the
sulfate process, which carry different properties and cost structures.


                            Global TiO2 Prices
                      average price at year end in
                        dollars per metric ton
                               [GRAPH]


20




<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                ---------------
                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS


                          TiO2 Capacity Profile
                               In percent
                                [GRAPH]
                             South America
                             Asia/Pacific
                             Europe
                             North America

                         1998 RESULTS COMPARED TO 1997
                              AND OUTLOOK FOR 1999

     The Company had operating income of $205 million for the year ended
December 31, 1998, a decrease of $244 million (54%) from 1997, which included
$308 million related to the polyethylene, alcohol and related products
businesses contributed to Equistar on December 1, 1997. Excluding these
earnings, operating income from the Company's subsidiaries increased $64 million
(45%) over 1997. Improved pricing trends and new acquisitions in TiO2 during
1998 resulted in this segment's profits being two and one-quarter times 1997
levels.

     Income from continuing operations for 1998 of $163 million decreased $25
million (13%), compared to 1997 income from continuing operations of $188
million. Income for 1998 includes $16 million (after tax) from insurance
settlements and a $42 million tax benefit relating to previous years. Excluding
these items and other non-recurring items, income from continuing operations
would have decreased $87 million (46%) from 1997, primarily as a result of the
impact of the downturn in the petrochemical cycle on Equistar's earnings.

     During 1998, the Company announced its intention to dispose of its
remaining Suburban Propane partnership interests ("Suburban Propane"), and has
entered into an agreement to sell this interest to Suburban Propane and its
management for $75 million. It is expected that this transaction will be
completed during the first half of 1999 and will result in a pre-tax gain of
approximately $50 million ($30 million after tax). Accordingly, the Company's
interest in Suburban Propane has been classified as a discontinued operation for
all periods presented.

     TITANIUM DIOXIDE AND RELATED PRODUCTS: Improved profitability from
increased selling prices, which began in mid-1997, continued during 1998 for the
titanium dioxide and related products segment. Operating income for 1998
increased over two-and-one-quarter times to $136 million, compared to $60
million in 1997. Net sales for 1998 increased 43% to $1.203 billion, compared to
$843 million for 1997. Higher average selling prices from worldwide price
increases accounted for the majority of the improvement in operating income.
Newly acquired operations also contributed to the increased sales and profits of
this segment. Fourth-quarter 1998 profits were much lower than the third quarter
as seasonal slowness in the United States and price competition in Europe
limited volumes sold to these regions. In response to these conditions,
production was scaled back. In addition, incremental costs were incurred related
to the re-start of the Stallingborough, United Kingdom, facility after its
September shutdown to complete an expansion. These events resulted in costs
which were $35 million higher than the previous quarter. As the difficulties at
Stallingborough are corrected and demand increases during the spring coatings,
season, volumes and profitability should return to more normal levels.

     On December 31, 1997, the Company acquired Rhone-Poulenc Chimie S.A.'s
French TiO2 operations, which included two plants providing 138 thousand metric
tons per year of TiO2 capacity along with certain specialty and intermediate
chemical businesses. On July 1, 1998, the Company acquired 99% of the voting
shares and 72% of total shares of Titanio do Brazil S.A. ("Tibras") in Brazil,
consisting of a plant having approximately 60 thousand metric tons per year of
TiO2 capacity and a mineral sands mine with over two million metric tons of
recoverable reserves.

     While strong demand existed in the North American and European markets for
much of 1998, depressed markets in the Asia/Pacific region negatively impacted
volumes to that area. Overall sales volumes were 25% higher than 1997, due to
sales attributable to the acquired French and Brazilian operations. Excluding
such operations, sales volumes were 4% lower than in 1997. Toward the end of the
year, increased price competition in Europe limited volumes sold to these
markets and seasonal slowness was evident in North America. Worldwide demand is
expected to be flat during 1999, with slow recovery in the Asian markets. A full
year of operations in Brazil should result in slight incremental sales volumes
in 1999 over 1998.

     Pricing trends continued upward during 1998 as global price increases were
implemented despite depressed markets in Asia. The average TiO2 selling price
for 1998 was 11% higher than 1997, including the French operations which
historically experienced lower pricing than the balance of this segment. Price
gains by region were 8% in the Americas, 13% in Europe and


                                                                              21





<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                ---------------
                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS


31% in Asia/Pacific, where the previous price declines were the most dramatic.
Continued price improvement is expected in 1999 as the price increases announced
in September for North America take effect. Price competition increased in
Europe toward the end of the year due to economic and seasonal slowness along
with competitor actions to increase market share. Europe is expected to remain
highly competitive in 1999.

     The impact of higher prices was partially offset by higher manufacturing
costs, as discussed below, and higher functional costs, despite the progress
made on cost-reduction initiatives put in place to reduce annual costs by $100
million by the end of 1999. The focus for 1999 is to continue these initiatives
and to identify others to reduce the cost structure by an additional $100
million.

     The TiO2 plants operated at approximately 93% of capacity during 1998,
compared to 97% during 1997. The Stallingborough, United Kingdom, plant was
shutdown in the fall of 1998 to complete a project to expand capacity by 41
thousand metric tons per year. Some difficulties in its December start-up were
experienced, lowering production and increasing costs in December. These
difficulties are being vigorously examined and are expected to be resolved in
early 1999. In addition, production at certain other facilities was slowed in
December in response to the seasonal slowdown in demand and price competition in
Europe, increasing costs for the fourth quarter.

     The outlook for 1999 includes higher average pricing compared to 1998 and
relatively stable worldwide demand. Combined with progress in realizing the
benefits of cost initiatives, profitability should continue to improve in this
segment.

     ACETYLS: Depressed markets in Asia, combined with overcapacity for some
products, resulted in decreased profits in acetyls during 1998. Net sales of
acetyls decreased $18 million (7%) to $253 million, while operating income
decreased $13 million (33%) to $26 million. These market conditions resulted in
declining selling prices for all product offerings with prices down 12%, 14% and
34% for vinyl acetate monomer ("VAM"), acetic acid and methanol, respectively,
compared to 1997.

     VAM pricing during 1998 was adversely affected by high export volumes at
low prices and competitive pressures. However, sales volumes were 9% above 1997.

     Similarly, sales volumes for acetic acid increased 9% over 1997 despite
weak Asian markets. A scheduled turnaround of the acetic acid plant was
completed during the year with the shutdown extended in light of weak market
conditions.

     Selling prices for methanol were adversely impacted by oversupply due to
new competitor facilities and higher imports. While prices fell an average of
34% during 1998, sales volumes were 14% higher than in 1997.

     The impact of lower prices was partially offset by favorable costs as a
result of the 1997 synthesis gas ("syngas") plant conversion to natural gas
feedstock. Initial difficulties resulting from this conversion were corrected
during 1997, with the full benefit of lower production costs being realized
during 1998. On November 16, 1998, the Company entered into agreements with
Linde AG relating to the Company's syngas unit in Texas, and a 15% interest in
its methanol business whereby the Company would receive $122.5 million in cash.
No gain or loss is expected to result from this transaction. Linde AG will
operate the syngas facility, under a long-term lease with a purchase option, and
will hold a 15% interest in the methanol operation.

     The VAM market is expected to tighten in 1999; however, conditions are
expected to remain depressed for methanol and acetic acid where overcapacity
exists.

     SPECIALTY CHEMICALS: Millennium Specialty Chemicals achieved another record
year with operating income of $43 million, $1 million over 1997. Net sales were
down $7 million (5%) to $141 million.

     The continued emphasis on high-margin products during 1998 was partially
offset by lower overall volumes and higher crude sulfate turpentine ("CST")
costs (the principal raw material for these chemicals). Although CST costs
declined during the second half of 1998, the average price for 1998 of $1.97 per
gallon was 15% higher than 1997. Effective January 1, 1999, CST prices decreased
25 cents per gallon and are expected to continue downward during the year.

     While average selling prices were up 8% over 1997 primarily due to
favorable product mix, price competition during the second half of the


                                 VAM Volume
                           in millions of pounds
                                  [GRAPH]

22



<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                ---------------
                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS



                    Fragrance Chemicals' Selling Price
                  yearly average in dollars per kilogram
                                  [graph]


year was experienced and is expected to continue into 1999. Business conditions
were strong through the first half of the year but became competitive in the
third quarter as weakness in the Asian markets, entry into the markets by new
competitors and capacity additions made mid-year price negotiations difficult.

     The outlook for fragrance chemicals, while good, is expected to include
some downward pressure on prices, which may dampen profitability growth.

     EQUISTAR: The Company's polyethylene, alcohol and related products
businesses were contributed to Equistar on December 1, 1997. Equity earnings for
1998, which reflect the Company's share of Equistar's post-interest profits,
were $40 million. Operating profits of $329 million during 1997 for the
Company's contributed businesses compares to the Company's underlying share in
Equistar's 1998 operating profits of $84 million, reflecting the dramatic
downturn in the petrochemical cycle during the year.

     Ethylene and ethylene derivative markets started their decline toward the
end of the first quarter of 1998 and reached trough conditions during the fourth
quarter of 1998. Equistar reported an operating loss (before interest) of $10
million for the fourth quarter of 1998 compared to income of $68 million in the
third quarter. While volume was relatively stable during the year, excess
industry supply, announced new capacity coming on stream and low feedstock
prices put severe pressure on selling prices. By year-end, ethylene prices had
dropped 30% from January, 1998. Following this trend, polyethylene prices also
dropped over 25% during 1998, as price competition resulted from overcapacity in
those markets. Other ethylene derivative products have also experienced declines
in prices during 1998, but not as dramatic as polyethylene.

     Feedstock costs were at relatively low levels during 1998, softening
somewhat the impact of declining prices on margins. Prices for crude oil were
down 11% in the month of December 1998 alone.

     Synergies achieved during 1998, in combining the operations contributed by
each of Equistar's partners, helped to soften the negative impact of the
depressed markets. Through the end of 1998, total synergies achieved since
formation and before transition costs, exceeded the target of $100 million by
$49 million. Additional synergies are expected through the year 2000, with a
cumulative annualized target of $275 million.

     The severe market conditions currently being experienced by Equistar have
resulted in recent losses and uncertain conditions for the future. Actions to
reduce operating costs and sell non-core assets are being taken, and production
was scaled back through lower operating rates and/or extended shutdowns to limit
supply in the market. There are some signs of improvement as ethylene and
polyethylene prices rose slightly in early 1999. New polyethylene industry
capacity is expected to come on stream in the near-term keeping the timing of
the cycle's recovery uncertain.


                         1997 RESULTS COMPARED TO 1996

     The Company had operating income of $449 million for the year ended
December 31, 1997, an increase of $166 million (59%) from 1996. These results
include the results of operations for the polyethylene, alcohol and related
products businesses through November 30, 1997, at which time the Company
contributed these businesses to Equistar. During 1997, the Company incurred
one-time reorganization and other costs related to the formation of Equistar of
$47 million ($37 million after tax), which was principally offset by a one-time
gain related to an insurance settlement of $46 million ($28 million after tax).
During 1996, the Company recorded non-recurring charges of $75 million ($48
million after tax) to reduce the carrying value and provide for closure costs of
certain TiO2 sulfate-process production facilities. Excluding these
non-recurring items, the Company's operating income increased $92 million (26%)
from the prior year. This increase is due primarily to higher average selling
prices for polyethylene and acetyls, the prices of which had dropped
dramatically during 1996, combined with lower feedstock costs during 1997. While
the pricing trends for TiO2 improved during 1997, reversing the downward slide
of prices which began in late 1995, the average selling price for the whole of
1997 was below that of 1996. Accordingly, 1997 operating income for this segment
was below 1996 levels.


                                                                              23





<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                ---------------
                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS


     Income from continuing operations for 1997 was $188 million, compared to
$33 million in 1996 due principally to improved pricing in the polyethylene and
acetyl businesses discussed above. Income in 1997 and 1996 from continuing
operations has been restated to reflect the Company's interest in Suburban
Propane as a discontinued operation (see Note 2 to the Consolidated Financial
Statements). Included in 1996 net income is a one-time after-tax gain from the
sale by the Company of a 73.6% interest in Suburban Propane, of $86 million and
post-tax earnings relative to Suburban Propane of $22 million. This compares to
a net loss in 1997 from the continuing interest in Suburban Propane of $3
million.

     TITANIUM DIOXIDE AND RELATED PRODUCTS: Titanium dioxide and related
products' operating income increased to $60 million from $7 million in 1996. In
1996, operating income included $75 million of non-recurring charges related to
the closure of certain sulfate-process production facilities in response to
deteriorating market conditions during that period. Excluding these charges,
operating income for the year decreased 27% from 1996 as overall average selling
prices were lower in 1997 compared to 1996. Net sales for 1997 decreased 3% to
$843 million, compared to $868 million for 1996.

     Strong demand during the spring paint and coating season, the
rationalization of some industry capacity and other market factors steadied the
marketplace during the year. Overall sales volumes reached record levels in
1997, 4% higher than 1996, despite the loss of some volume from the reduction of
sulfate-process production during the year.

     Pricing trends, which started downward in 1995 and continued to fall
through 1996, reversed direction in March 1997 and rose through the balance of
1997. Global price increases were supported by strong demand and tight supply.
While the average TiO2 selling price for 1997 was 7% lower than the prior year,
the fourth quarter's average price was 5% higher than in the third quarter and
4% above the comparable quarter in 1996. The fourth quarter price gains by
region were 3% in the Americas, 8% in Europe and nearly 10% in Asia/Pacific,
where the previous price declines were the most dramatic.

     The lower average prices, combined with unfavorable foreign currency
fluctuations in Europe and Australia, adversely impacted 1997 profitability.
These effects were largely, but not fully, offset by lower production costs and
higher production output as a result of cost-control programs put in place
during 1997 to reduce annual production costs by $100 million from 1996 levels
by 1999.

     The TiO2 plants produced at approximately 97% of capacity during 1997,
compared to 88% during 1996. This added production not only reduced overall unit
costs, but was necessary to meet growing demand during the year. By the end of
1997, inventories had dropped to record low levels. Progress was made in 1997 on
a capital project to expand capacity at the Stallingborough, United Kingdom,
plant by 41 thousand metric tons per year. On December 31, 1997, the Company
acquired Rhone-Poulenc's TiO2 and related intermediate and specialty chemical
operations in France, adding 138 thousand metric tons per year of TiO2 capacity.

     ACETYLS: Net sales of acetyls increased $31 million (13%) to $271 million
in 1997, and operating income more than tripled to $39 million. The increase in
operating income primarily related to increased selling prices in all three of
its product lines over depressed 1996 levels. Average selling prices for 1997
were 10%, 3% and 28% higher than 1996 for VAM, acetic acid and methanol,
respectively. In addition, the mechanical difficulties experienced in the 1996
conversion of the syngas unit to natural gas feedstock were resolved early in
1997, significantly improving production output and reducing production costs
during the year.

     Demand for VAM in 1997 was steady, with volumes 1% above 1996. A mid-year
price increase and new industry capacity coming on stream were absorbed by
higher demand. Weakening Asian markets had a negative impact in the fourth
quarter, with prices falling 4% from the previous quarter. Continued reduced
demand from these markets during 1998 put further pressure on prices.

     Acetic acid sales volumes were 17% below prior year, primarily as a result
of a planned customer outage during 1997. Prices, which increased earlier in the
year, dropped 2% in the fourth quarter as formula-driven prices were impacted by
falling feedstock costs.


                                  CST Cost
                          yearly average price in
                            dollars per gallon
                                 [GRAPH]



24



<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                ---------------
                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS


                            ETHYLENE CONTRACT PRICES*
                     yearly average in dollars per pound
                                  [GRAPH]
                          *Source: Chemical Data Inc.


     Methanol sales volumes for 1997 were 57% higher than the prior year, with
industry outages during the year keeping supplies tight. Prices, which were up
17% in the fourth quarter over 1996, and equal to the third quarter, fell
sharply in early 1998.

     SPECIALTY CHEMICALS: Another record year was completed by Millennium
Specialty Chemicals, with operating income of $42 million increasing $6 million
(17%) from 1996. Net sales also increased $21 million (17%) to $148 million. A
6% increase in sales volume for fragrance chemicals was principally responsible
for the increased profitability. The cost of CST increased an average of 25%
over 1996 levels. These higher costs were offset by strong demand for these
products together with tight supplies, keeping prices at premium levels.

     POLYETHYLENE, ALCOHOL AND RELATED PRODUCTS: Net sales of polyethylene,
alcohol and related products (which include sales from these businesses for the
eleven months ended November 30, 1997, at which time they were contributed to
Equistar) were $1.786 billion for 1997, a decrease of $19 million (1%) from 1996
full-year results.

     Operating income increased $80 million (35%) to $308 million for 1997,
principally as a result of a 15% increase in average selling prices during the
1997 period, coupled with lower feedstock costs, which declined from peak 1996
levels. During 1997, strong demand both domestically and in the export markets,
coupled with tight supply, resulted in prices rising through the third quarter.
Prices began to slowly weaken thereafter as expectations of new industry
capacity coming on stream and normal seasonal slowdowns reduced demand and put
pressure on prices. Prices during the fourth quarter were down 5% from the third
quarter. Polyethylene unit volumes for the 1997 period were 2% higher than 1996.

     Feedstock costs were on average 31% lower than 1996's historical highs, as
warmer-than-normal winter weather reduced demand for natural gas and natural gas
liquids. These costs continued their decline late in 1997 as winter temperatures
remained above normal and crude oil inventories began building due to decreased
demand from Asian markets. By the end of 1997, and into 1998, feedstock costs
continued below expectations, softening the impact of declining prices on
margins late in the year.


                              EFFECT OF INFLATION

     Because of the relatively low level of inflation experienced in both the
United States and most other world markets in which the Company participates,
inflation did not have a material impact on the Company's results of operations
for 1998, 1997 or 1996.


                            FOREIGN CURRENCY MATTERS

     The functional currency of each of the Company's non-United States
operations (principally, the operations of Millennium Inorganic Chemicals in the
United Kingdom, France, Brazil and Australia) is the local currency. The impact
of currency translation in combining the results of operations and financial
position of such operations has not been material to the consolidated financial
position of the Company. The recent developments in Brazil, regarding the
devaluation of its currency, the real, are not expected to have a material
result on the Company's consolidated operations since approximately two-thirds
of its Brazilian sales are referenced to a percentage of U.S. dollar prices.
However, as a result of translating the functional currency financial statements
into U.S. dollars, consolidated Shareholders' equity would decrease
approximately $44 million as a result of this devaluation using the March 15,
1999 exchange rate. Future events, which may significantly increase or decrease
the risk of future movement in the real, cannot be predicted.

     In addition, the Company generates revenue from export sales and revenue
from operations conducted outside the United States that may be denominated in
currencies other than the relevant functional currency. The Company hedges
certain revenues and costs to minimize the impact of changes in the exchange
rates of those currencies compared to the functional currencies. The Company
does not use derivative financial instruments for trading or speculative
purposes. Foreign currency losses aggregated $4 million, $4 million and $7
million in 1998, 1997 and 1996, respectively.


                                EURO CONVERSION

     On January 1, 1999, eleven of fifteen member countries of the European
Union established fixed conversion rates between their


                                                                              25





<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                ---------------
                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS


existing sovereign currencies ("legacy currencies") and the European Union's
common currency, the euro. As of that date, the euro began trading on currency
exchanges and may be used in business transactions. The legacy currencies will
remain legal tender in the participating countries for a transition period
between January 1, 1999 and at least January 1, 2002 (but not later than July 1,
2002).

     The Company has begun to identify issues associated with the conversion to
the euro, including, among others, the need to adapt computer and financial
systems to accommodate euro-denominated transactions and the impact of one
common currency on pricing. Since financial systems and processes currently
accommodate multiple currencies, the Company does not anticipate
system-conversion costs to be material. Since the euro conversion may affect
cross-border competition by creating cross-border price transparency, the
Company will be assessing its pricing strategies to ensure it remains
competitive in a broader European market.


                        LIQUIDITY AND CAPITAL RESOURCES

     Through September 30, 1996, the Company financed its operations and capital
and other expenditures from a combination of cash generated from operations,
external borrowings and loans, and invested capital provided by Hanson PLC
("Hanson") or its United States affiliates. Since its demerger from Hanson, the
Company has met all of its cash requirements through internally generated funds
and external borrowings. The Company's ability to generate cash from operations,
and the servicing and repayment of debt, depends upon numerous business factors,
some of which are outside the control of the Company, including industry
cyclicality, changes in global economic conditions, price volatility of certain
raw materials and other conditions.

     Net cash provided by operating activities was $150 million, $383 million
and $372 million in 1998, 1997 and 1996, respectively. The decline in 1998
compared to 1997 reflects the contribution of the polyethylene, alcohol and
related products businesses to Equistar on December 1, 1997. Since December 1,
1997, cash distributions received from Equistar are reflected in net cash
provided by investing activities, as described below. In addition, increases in
TiO2 and ore inventories during 1998 also contributed to the decrease in cash
from operating activities. During 1997, cash generated from increased operating
income was used primarily for working capital purposes, keeping 1997 levels on
par with 1996.

     Net cash provided by investing activities was $252 million, $474 million
and $458 million in 1998, 1997 and 1996, respectively. During 1998, 1997 and
1996, significant transactions were completed which provided cash to the
Company: the contribution of the polyethylene, alcohol and related products
businesses to Equistar, the subsequent addition of Occidental as a partner in
Equistar and the sale of a 73.6% interest in Suburban Propane. These
transactions provided cash of $317 million, $768 million and $733 million for
1998, 1997 and 1996, respectively. The Company used funds for the acquisition of
certain TiO2 and specialty and intermediate chemical operations in France for
$169 million during 1997. Certain TiO2 operations and ore reserves in Brazil
were acquired for $85 million during 1998. In addition, the Company spent $215
million in capital expenditures during 1998, compared to $152 million and $285
million in 1997 and 1996, respectively, as a result of substantially completing
the TiO2 expansion in the United Kingdom at the end of 1998, among other
projects.

     The Company expects to spend approximately $150 million in 1999 on capital
expenditures. Major projects include building a technical research and
development center in the United States for TiO2 and completing the
implementation of SAP-based business solutions company-wide. In January 1999,
the Company received $122.5 million as a result of a transaction involving the
syngas and methanol operations of the Company's acetyls business. The Company
expects an additional $75 million to be received during 1999 when the sale of
its investment in Suburban Propane is completed.

     The Board of Directors has authorized the Company to spend up to $200
million to repurchase shares of the Company's outstanding common stock ("Common
Stock") from time to


                            CAPITAL EXPENDITURES
                              vs. Depreciation
                                 $ Millions
                                   [GRAPH]
                            Capital expenditure
                                Depreciation 

26



<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                ---------------
                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS


time, in the open market and in privately negotiated transactions, subject to
market conditions. Repurchases will not be made under the program if the
Company's net-debt-to-total-capitalization would exceed 55%. The repurchased
shares will be available for general corporate purposes. At December 31, 1998,
the Company had 77,873,586 shares of Common Stock outstanding. Through March 15,
1999, the Company had repurchased 2.1 million shares at a total cost of $39
million.

     Net cash used in financing activities was $365 million, $1.198 billion and
$834 million in 1998, 1997 and 1996, respectively. The changes from year to year
principally related to changes in the level of funding and other transactions
between the Company and its affiliates prior to the demerger from Hanson and
from external sources since October 1, 1996. At December 31, 1998, the Company
had net debt of $979 million, over $1 billion less than at December 31, 1996.

     The reduction in net debt during 1998 was funded primarily from operations
and distributions from Equistar. Net-debt-to-total-capitalization at December
31, 1998, was 50%, including the Company's proportional share of Equistar's
debt. A subsidiary of the Company guarantees certain debt obligations of
Equistar up to $750 million. At December 31, 1998, the Company had approximately
$432 million of unused availability under short-term lines of credit and its
credit facility. The Company believes that, during 1999, cash from operations,
disposals, expected distributions from Equistar and availability under existing
borrowing facilities will provide adequate support for all of the Company's cash
needs for working capital, dividends, share repurchases and capital expenditures
for its existing businesses.


                                   YEAR 2000

     Each of the Company's three business units and its corporate headquarters
has established a team to address Year 2000 compliance issues. Plans have been
established by each team and actions taken toward the goal of Year 2000
compliance are reported, on a regular basis, to the Company's Operations
Committee and its Board of Directors.

     The Company has focused its Year 2000 efforts on three major exposure
areas: information systems (which includes application software and technical
infrastructure), manufacturing process controls (non-IT systems) and supply
chain (which includes the Company's significant suppliers and customers). The
project phases common to all exposure areas are: 1) inventory/assessment; 2)
remediation; 3) testing; 4) implementation; and 5) designing contingency plans.
Key components of each of these phases follows:

    The inventory/assessment phase involves identifying significant hardware and
    software that exist throughout the Company. The Company then assigns a
    business risk to each system and prioritizes each system to determine
    optimal allocation of resources and funds for Year 2000 remediation work.

    The remediation phase involves determining whether individual systems will
    be repaired, replaced or retired and develops plans, schedules and costs for
    correction. This phase also includes an allocation of resources and
    execution of a remedial plan.

    During the testing phase, the performance, functionality and integration of
    converted or replaced systems are tested.

    Thereafter, the implementation phase provides for the implementation of
    fully tested systems into the production environment.

    Contingency planning safeguards the Company in the event that risk
    assessments and action plans do not result in Year 2000 compliance or the
    timetable in which actions are scheduled to be taken is not adequate to
    ensure compliance by the Year 2000.

     During 1997, as a part of a separate project to improve the quality of and
access to business information, the Company began a company-wide implementation
of the SAP R/3 enterprise system software from SAP America, Inc. ("SAP"). This
system integrates information, including financial, human resources, customer
and supply chain information, in a single database. The Company has received
representations from SAP that the SAP R/3 system has been designed to be Year
2000 compliant. As part of the implementation, system interfaces with the SAP
R/3 system have been minimized. Two of the Company's three business units
completed their SAP implementations during 1998. The third business unit,
Millennium Inorganic Chemicals, has recently completed its first regional
implementation of SAP and is on schedule to complete the remaining
implementations by the third quarter 1999. The Company has also completed
modifications to existing business information systems for Millennium Inorganic
Chemicals, as a contingency plan, in the unlikely event that the SAP
implementation is not completed on schedule. The Company has outsourced the
technical infrastructure for the SAP R/3 system to an internationally recognized
provider of these services and has received assurances from the provider that
all hardware and related system software are Year 2000 compliant. The Company
has not deferred any of its currently planned projects as a result of Year 2000
efforts.

     The Company's three business units have completed the inventory phase of
the Year 2000 project for non-IT systems. The assessment phase has been 100%
completed at one business unit, 70% completed at the second unit and 75%
completed at the third unit. The Company has targeted October 1999 as the
completion date for all five phases of the Year 2000 project. The Company has
engaged independent consultants at certain locations to monitor remediation
programs for certain systems and to provide additional expertise.


                                                                              27





<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                ---------------
                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS


     The Company has requested and received Year 2000 compliance information
from most of its critical suppliers, customers and other third parties. The
Company is in the process of evaluating and assessing these responses. The more
significant third-party relationships include suppliers of ores, electrical
power, natural gas and industrial gases and providers of transportation such as
pipelines, rail and barges. Contingency plans will be developed for significant
third-party risks identified by the Company as a result of its evaluations and
assessments. Although the Company has planned these actions to address
third-party issues and potential impacts to the Company, it often has little
direct ability to influence the compliance actions of other parties.

     The Company estimates that it will spend $84 million related to the
company-wide implementation of SAP, consisting of $48 million for consulting
costs, $6 million for hardware, $6 million for software, $13 million for
internal human resources, and $11 million for training and incidental costs. The
Company estimates that it will spend an additional $15 million for required
modifications and replacements of non-IT systems to become Year 2000 compliant,
excluding internal human resources costs, which the Company does not measure
separately. This estimate excludes Year 2000 costs that may be incurred by
Equistar. The total amount spent on the Year 2000 project during 1998 was
approximately $60 million, of which $54 million was capitalized and $6 million
was expensed.

     The Company owns a 29.5% interest in Equistar. Equistar has formed a
steering committee to oversee all Year 2000 remediation efforts. The chairman of
the Equistar Year 2000 Steering Committee reports project progress regularly to
the Equistar Governance Committee, which includes representatives from the
Company's senior management. The Equistar Year 2000 Steering Committee is in the
process of completing an assessment of the state of readiness of the information
technology and non-IT systems of Equistar. These assessments cover manufacturing
systems, including laboratory information systems and field instrumentation, and
significant third-party vendor and supplier systems, including employee
compensation and benefit plan maintenance systems. The Steering Committee is
also in the process of assessing the readiness of significant customers and
suppliers. The inventory, assessment and remediation phases for Equistar are
nearly complete, with the majority of the testing and final implementation to
take place in 1999. In addition, Equistar is in the process of replacing the
business information systems for the operations contributed by Millennium and
Occidental with SAP-based systems. In November 1998, Equistar completed a
system-wide implementation of SAP for its polymer business and a portion of its
petrochemical business. Conversion of its remaining businesses is expected to be
completed in the first half of 1999. The operations of Millennium Petrochemicals
are integrally related to those of Equistar's La Porte, Texas, facility from
which materials and utilities are sourced. As a result, any Year 2000-related
interruption in Equistar's operations at this location could severely impact
Millennium Petrochemicals' ability to manufacture and ship products to
customers.

     The failure to correct a material Year 2000 problem could result in an
interruption in, or a failure of, certain normal business activities or
operations. In particular, if suppliers fail to provide the Company with raw
materials necessary to manufacture its products, sufficient electrical power and
other utilities to sustain its manufacturing processes, or adequate, reliable
means of transporting its products to its customers, then any such failure could
result in the temporary inability to manufacture and/or ship products to
customers. This risk may be mitigated to some extent at Millennium Inorganic
Chemicals, where manufacturing capacity is distributed among seven manufacturing
locations. Due to the uncertainty inherent in the Year 2000 problem, resulting
in part from the uncertainty of the Year 2000 readiness of third-party
suppliers, the Company is unable to determine at this time whether the
consequences of Year 2000 failures, if any, would have a material impact on the
Company's results of operations and/or financial condition.

     The costs of the Company's Year 2000 project and the dates on which the
Company believes it will complete such efforts are based on management's current
best estimates, which were derived using numerous assumptions regarding future
events, including the continued availability of certain resources and the
continued progression toward the implementation of SAP at various facilities.
There can be no assurance that these estimates will prove to be accurate and,
therefore, actual results could differ materially from those anticipated.
Specific factors that could cause material differences with actual results
include, but are not limited to, the results of testing and the timeliness and
effectiveness of remediation efforts of third parties.

     Formal contingency plans for certain Year 2000-related risks have not yet
been developed but are expected to include identification of alternate
suppliers, allowing for sufficient inventory levels in the event of
manufacturing or transportation interruption and replacing electronic
applications with manual processes. These plans are expected to be completed by
the end of the third quarter of 1999.

     The Company's Year 2000 project is expected to reduce the Company's level
of uncertainty about the Year 2000 problem and, in particular, the Year 2000
readiness of its significant suppliers and customers. The Company believes that
the Year 2000 issues will be addressed on a timely basis. However, in the event
that the Year 2000 issues of the Company and/or third parties with whom the
Company transacts business are not addressed on a timely basis, it is possible
that such issues could have an adverse impact on the Company's operations and/or
financial condition.

28



<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                ---------------
                     REPORT OF THE INDEPENDENT ACCOUNTANTS


                   TO THE BOARD OF DIRECTORS AND SHAREHOLDERS
                          OF MILLENNIUM CHEMICALS INC.

     We have audited the accompanying consolidated financial statements of
Millennium Chemicals Inc. (the "Company") as of December 31, 1998 and 1997, and
for each of the three years in the period ended December 31, 1998. These
financial statements are the responsibility of the Company's management; our
responsibility is to express an opinion on these financial statements based on
our audits. We did not audit the financial statements of HMB Holdings Inc.
("Cornerstone") which statements reflect a loss from discontinued operations of
$2,877 million for the fiscal year ended September 30, 1996. Those statements
were audited by other auditors whose report thereon has been furnished to us,
and our opinion expressed herein, insofar as it relates to the amounts included
for Cornerstone, is based solely on the report of the other auditors.

     We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits and the report of other auditors provide a reasonable
basis for our opinion.

     In our opinion, based on our audits and the report of other auditors, the
consolidated financial statements referred to above, present fairly, in all
material respects, the financial position of the Company as of December 31, 1998
and 1997, and the results of its operations and its cash flows for each of the
three years in the period ended December 31, 1998, in conformity with generally
accepted accounting principles.

PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP
Florham Park, New Jersey
January 21, 1999


                                                                              29





<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                ---------------
                          CONSOLIDATED BALANCE SHEETS
                    (DOLLARS IN MILLIONS, EXCEPT SHARE DATA)

<TABLE>
<CAPTION>
==================================================================================
As of December 31                                        1998              1997
- ----------------------------------------------------------------------------------
<S>                                                       <C>               <C>
ASSETS
Current assets
 Cash and cash equivalents                              $  103            $   64
 Trade receivables, net                                    242               369
 Inventories                                               334               273
 Assets of discontinued interests                          148                24
 Other current assets                                      109               106
                                                        ------            ------
     Total current assets                                  936               836
Property, plant and equipment, net                       1,044               851
Investment in Equistar                                   1,519             1,934
Other assets                                               189               237
Goodwill                                                   412               468
                                                        ------            ------
     TOTAL ASSETS                                       $4,100            $4,326
                                                        ======            ======

LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities
 Notes payable                                          $   29            $     
 Current maturities of long-term debt                       14                20
 Trade accounts payable                                    113                86
 Income taxes payable                                       23                12
 Accrued expenses and other liabilities                    200               323
                                                        ------            ------
     Total current liabilities                             379               441
Long-term debt                                           1,039             1,327
Deferred income taxes                                      334               280
Other liabilities                                          755               814
                                                        ------            ------
     Total liabilities                                   2,507             2,862
                                                        ------            ------
Commitments and contingencies (Note 12)

Minority interest                                           15                --
Shareholders' equity
 Preferred stock (par value $.01 per share,
    authorized 25,000,000 shares, none issued
    and outstanding)                                        --                  
 Common stock (par value $.01 per share,
    authorized 225,000,000 shares; issued
    and outstanding 77,873,586 and 77,276,942
    shares in 1998 and 1997, respectively)                   1                 1
 Paid in capital                                         1,333             1,334
 Retained earnings                                         294               177
 Unearned restricted shares                                (35)              (42)
 Cumulative translation adjustment                         (15)               (6)
 Treasury stock (at cost, 502,572 shares in 1998)           (7)               --
 Deferred compensation                                       7                  
                                                        ------            ------
     Total shareholders' equity                          1,578             1,464
                                                        ------            ------
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY              $4,100            $4,326
                                                        ======            ======
</TABLE>

See Notes to Consolidated Financial Statements

30







<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                ---------------
                     CONSOLIDATED STATEMENTS OF OPERATIONS
                    (DOLLARS IN MILLIONS, EXCEPT SHARE DATA)

<TABLE>
<CAPTION>
==================================================================================================
Year Ended December 31                                   1998             1997             1996
- --------------------------------------------------------------------------------------------------
<S>                                                       <C>              <C>              <C>
NET SALES                                              $ 1,597          $ 3,048          $ 3,040
Operating costs and expenses
 Cost of products sold                                   1,134            2,180            2,264
 Depreciation and amortization                             102              203              201
 Selling, development and administrative expense           156              216              217
 Impairment of assets and related closure costs             --               --               75
                                                       -------          -------          -------
   Operating income                                        205              449              283
Interest expense (primarily to a related party
 in 1996)                                                  (76)            (131)            (214)
Interest income                                              4               10               37
Equity in earnings of Equistar                              40               18               --
Other income (expense), net                                 29                1              (23)
                                                       -------          -------          -------
Income from continuing operations before provision
 for income taxes and minority interest                    202              347               83
Provision for income taxes                                 (37)            (159)             (50)
                                                       -------          -------          -------
Income from continuing operations before minority
 interest                                                  165              188               33
Minority interest                                           (2)              --               --
                                                       -------          -------          -------

INCOME FROM CONTINUING OPERATIONS                          163              188               33
Income (loss) from discontinued operations (net of
 income taxes of $1, ($2) and ($1,028),
 respectively)                                               1               (3)          (2,734)
                                                       -------          -------          -------

NET INCOME (LOSS)                                      $   164          $   185          $(2,701)
                                                       =======          =======          =======
Income per share from continuing operations            $  2.17          $  2.52          $  0.44
                                                       =======          =======          =======
Income (loss) per share from discontinued operations      0.01            (0.04)          (36.74)
                                                       =======          =======          =======
Net income (loss) per share -- basic                   $  2.18          $  2.48          $(36.30)
                                                       =======          =======          =======
Net income (loss) per share -- diluted                 $  2.17          $  2.48          $(36.30)
                                                       =======          =======          =======
Pro forma income from continuing operations
 (unaudited)                                                                             $   168
                                                                                         =======
Pro forma income from continuing operations per share
 (unaudited)                                                                             $  2.26
                                                                                         =======
</TABLE>

See Notes to Consolidated Financial Statements


                                                                              31




<PAGE>

<PAGE>

                           MILLENNIUM CHEMICALS INC.
                                ---------------
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
                             (DOLLARS IN MILLIONS)

<TABLE>
<CAPTION>
=================================================================================================
Year Ended December 31                                  1998             1997             1996
- -------------------------------------------------------------------------------------------------
<S>                                                      <C>              <C>              <C>

CASH FLOWS FROM OPERATING ACTIVITIES

 Income from continuing operations                      $ 163          $   188          $    33
 Adjustments to reconcile net income to net cash
  provided by operating activities
  Depreciation and amortization                           102              203              201
  Impairment of assets and related closure costs           --               --               75
  Provision for deferred income taxes                      54              122               15
  Restricted stock amortization                             6               23               --
  Equity earnings                                         (29)             (18)              --
  Minority interest                                         2               --               --
  Unrealized translation gain                              --               --              (21)
  Changes in assets and liabilities (net of
   acquisitions and dispositions)
    Decrease in trade receivables                          24              141               38
    (Increase) decrease in inventories                    (42)              14                5
    (Increase) decrease in other current assets           (45)             (40)             126
    Decrease (increase) in investments and other assets    75               58              (65)
    Increase (decrease) in trade accounts payable          15              (97)              13
    Decrease in accrued expenses and other liabilities
     and income taxes payable                             (82)            (124)             (24)
    Decrease in other liabilities                         (93)             (87)             (24)
                                                        -----          -------          -------
  Cash provided by operating activities                   150              383              372

CASH FLOWS FROM INVESTING ACTIVITIES
 Capital expenditures                                    (215)            (152)            (285)
 Acquisition of businesses                                (85)            (169)
 Proceeds from Equistar                                    --              750               --
 Accounts receivable collection through Equistar          225               25
 Distributions from Equistar, net of liabilities paid     317               18               --
 Proceeds from sale of business                            --                               733
 Proceeds from sale of fixed assets                        10                2               10
                                                        -----          -------          -------
  Cash provided by investing activities                   252              474              458

CASH FLOWS FROM FINANCING ACTIVITIES
 Dividend to shareholders                                 (47)             (46)                
 Contribution to Suburban Propane                          --              (22)              --
 Proceeds from long-term debt                             172              185            2,335
 Repayment of long-term debt                             (519)          (1,217)          (3,321)
 Increase (decrease) in notes payable                      29              (98)             (15)
 Net contribution from Hanson PLC and Prior
  Affiliates                                               --               --              167
                                                        -----          -------          -------
  Cash used in financing activities                      (365)          (1,198)            (834)
Effect of exchange rate changes on cash                     2               (3)              --
                                                        -----          -------          -------
Increase (decrease) in cash and cash equivalents           39             (344)              (4)
Cash and cash equivalents at beginning of year             64              408              412
                                                        -----          -------          -------
CASH AND CASH EQUIVALENTS AT END OF YEAR                $ 103          $    64          $   408
                                                        =====          =======          =======
</TABLE>

See Notes to Consolidated Financial Statements

32



<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                ---------------
           CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY
                                 (IN MILLIONS)

<TABLE>
<CAPTION>
=============================================================================================================================
                                         COMMON STOCK
                                    ----------------------

                                                                     TREASURY          DEFERRED        PAID IN      RETAINED
                                      SHARES          AMOUNT            STOCK      COMPENSATION        CAPITAL      EARNINGS
- -----------------------------------------------------------------------------------------------------------------------------
<S>                                    <C>            <C>             <C>             <C>              <C>            <C>
Balance at December 31, 1995                           $               $               $               $               $
Comprehensive income
  Net income (loss)                                                                                                      38
  Other comprehensive income
    Currency translation adjustment
                                       ---             ---             ---             ---             ------          ----
Total comprehensive income              --              --              --              --                 --            38
Amortization and adjustment of
  unearned restricted shares                                                                              (13)
Issuance of stock                       74               1                                              1,267
Issuance of restricted shares            3                                                                 65
Net capital contribution
  from Demerger
Net transaction with affiliates
                                       ---             ---             ---             ---             ------          ----
Balance at December 31, 1996            77               1              --              --              1,319            38
Comprehensive income
  Net income                                                                                                            185
  Other comprehensive income
    Currency translation adjustment
                                       ---             ---             ---             ---             ------          ----
Total comprehensive income                                                                                              185
Amortization and adjustment of
  unearned restricted shares            (1)                                                                15
Dividend to shareholders                                                                                                (46)
                                       ---             ---             ---             ---             ------          ----
Balance at December 31, 1997            76               1                                              1,334           177
Comprehensive income
  Net income                                                                                                            164
  Other comprehensive income
    Currency translation adjustment
                                       ---             ---             ---             ---             ------          ----
Total comprehensive income              --              --              --              --                 --           164
Amortization and adjustment of
  unearned restricted shares             1                                                                 (1)
Shares held by rabbi trust                                              (7)              7
Dividend to shareholders                                                                                                (47)
                                       ---             ---             ---             ---             ------          ----
BALANCE AT DECEMBER 31, 1998            77             $ 1             $(7)            $ 7             $1,333          $294
                                       ===             ===             ===             ===             ======          ====
Cumulative other
  comprehensive income -- 1997

Cumulative other
  comprehensive income -- 1998


<CAPTION>
=================================================================================================


                                      UNEARNED       CUMULATIVE
                                    RESTRICTED      TRANSLATION         INVESTED
                                        SHARES       ADJUSTMENT          CAPITAL         TOTAL
- -------------------------------------------------------------------------------------------------
<S>                                     <C>             <C>             <C>             <C>
Balance at December 31, 1995            $               $               $ 4,801         $ 4,801
Comprehensive income
  Net income (loss)                                                      (2,739)         (2,701)
  Other comprehensive income
    Currency translation adjustment                       10                                 10
                                        ----            ----            -------         -------
Total comprehensive income                --              10             (2,739)         (2,691)
Amortization and adjustment of
  unearned restricted shares              15                                                  2
Issuance of stock                                                        (1,268)
Issuance of restricted shares            (65)                                                --
Net capital contribution
  from Demerger                                                             443             443
Net transaction with affiliates                                          (1,237)         (1,237)
                                        ----            ----            -------         -------
Balance at December 31, 1996             (50)             10                  0           1,318
Comprehensive income
  Net income                                                                                185
  Other comprehensive income
    Currency translation adjustment                      (16)                               (16)
                                        ----            ----            -------         -------
Total comprehensive income                               (16)                               169
Amortization and adjustment of
  unearned restricted shares               8                                                 23
Dividend to shareholders                                                                    (46)
                                        ----            ----            -------         -------
Balance at December 31, 1997             (42)             (6)                             1,464
Comprehensive income
  Net income                                                                                164
  Other comprehensive income
    Currency translation adjustment                       (9)                                (9)
                                        ----            ----            -------         -------
Total comprehensive income                --              (9)                --             155
Amortization and adjustment of
  unearned restricted shares               7                                                  6
Shares held by rabbi trust
Dividend to shareholders                                                                    (47)
                                        ----            ----            -------         -------
BALANCE AT DECEMBER 31, 1998            $(35)           $(15)           $    --         $ 1,578
                                        ====            ====            =======         =======
Cumulative other
  comprehensive income -- 1997                          $ (6)                           $    (6)
                                                        ====                            =======
Cumulative other
  comprehensive income -- 1998                          $(15)                           $   (15)
                                                        ====                            =======
</TABLE>


                                                                              33





<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                ---------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                    (DOLLARS IN MILLIONS, EXCEPT SHARE DATA)


NOTE 1--BASIS OF PRESENTATION AND DESCRIPTION OF COMPANY

     Millennium Chemicals Inc. (the "Company") is a major international
chemicals company, with leading market positions in a broad range of commodity,
industrial, performance and specialty chemicals, operating through its
subsidiaries: Millennium Inorganic Chemicals Inc. (and its non-United States
affiliates), Millennium Petrochemicals Inc., and Millennium Specialty Chemicals
Inc.; and, beginning December 1, 1997, through its interest in Equistar
Chemicals, LP ("Equistar"), a joint venture formed by the Company and Lyondell
Chemical Company ("Lyondell") to jointly own and operate the petrochemical and
polymer businesses of the Company and Lyondell. On May 15, 1998, the Company's
interest in Equistar was reduced to 29.5% with the addition of the ethylene,
propylene, ethylene oxide and derivatives businesses of Occidental Petroleum
Corporation's ("Occidental") chemical subsidiary (see Note 2).

     The Company was incorporated on April 18, 1996, and has been publicly owned
since October 1, 1996, when Hanson PLC ("Hanson") transferred its chemical
operations to the Company and, in consideration, all of the then outstanding
shares of the Company's common stock ("Common Stock") were distributed pro rata
to Hanson's shareholders (the "Demerger").

     The consolidated financial statements of operations and cash flows for the
year ended December 31, 1996 also include the combined operations of certain
non-chemical businesses ("Discontinued Businesses"), which were owned by
subsidiaries of Hanson that became subsidiaries of the Company upon the
Demerger. The Company sold the Discontinued Businesses to Hanson on October 6,
1996. Since these operations were not a part of the Company upon completion of
the Demerger transactions, their historical results of operations have been
presented as discontinued operations.

     Prior to the Demerger, the Company provided certain corporate, general and
administrative services to certain other indirect wholly owned subsidiaries of
Hanson ("Prior Affiliates"), including legal, finance, tax, risk management and
employee benefit services. Charges for these services, which were allocated to
the Prior Affiliates based on the respective revenues of the Company and the
Prior Affiliates, reduced the Company's selling and administrative expense by
$18 for the year ended December 31, 1996. The Company's management believes such
method of allocation is reasonable. In addition, prior to the Demerger, a
subsidiary of the Company controlled, on a centralized basis, all cash receipts
and disbursements received or made by such affiliates.

     Subsequent to the Demerger, the financial statements are presented on a
consolidated basis. All significant intercompany accounts and transactions have
been eliminated.


NOTE 2--ACQUISITIONS AND DISPOSITIONS

     On December 1, 1997, the Company and Lyondell completed the formation of
Equistar, a joint venture partnership created to own and operate the
petrochemical and polymer businesses of the Company and Lyondell. The Company
contributed to Equistar substantially all of the net assets of its polyethylene,
performance polymer and ethyl alcohol businesses. The Company retained $250 from
the proceeds of accounts receivable collections and substantially all the
accounts payable and accrued expenses of its contributed businesses existing on
December 1, 1997, and received proceeds of $750 from borrowings under a new
credit facility entered into by Equistar. The Company used the $750 which it
received to repay debt. A subsidiary of the Company guarantees $750 of
Equistar's credit facility.

     Equistar was owned 57% by Lyondell and 43% by the Company until May 15,
1998, when the Company and Lyondell expanded Equistar with the addition of the
ethylene, propylene, ethylene oxide and derivatives businesses of Occidental's
chemical subsidiary. Occidental contributed the net assets of those businesses
(including approximately $205 of related debt) to Equistar. In exchange,
Equistar borrowed an additional $500, $420 of which was distributed to
Occidental and $75 to the Company. Equistar is now owned 41% by Lyondell, 29.5%
by Occidental and 29.5% by the Company. No gain or loss resulted from this
transaction.

     Equistar is managed by a Partnership Governance Committee consisting of
representatives of each partner. Approval of Equistar's strategic plans and
other major decisions requires the consent of the representatives of the three
partners. All decisions of Equistar's Governance Committee that do not require
unanimity among the partners may be made by Lyondell's representatives alone.

     The investment in Equistar at the date of contribution represented the
carrying value of the Company's contributed net assets, less cash received, and
approximated the fair market value of its interest in Equistar based upon
independent valuation. The difference between the carrying value of the
Company's investment and its underlying equity in the net assets of Equistar has
been reduced from $617 to $404 as a result of adding Occidental as a partner and
is being amortized over 25 years. The Company accounts for its interest in
Equistar using the equity method.

     Because of the significance of the Company's interest in Equistar to its
total results of operations, the separate financial statements of Equistar are
included in the Company's 1998 Annual Report filed on Form 10-K.

34



<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                ---------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                    (DOLLARS IN MILLIONS, EXCEPT SHARE DATA)


     On December 31, 1997, the Company completed the purchase of the shares of
Rhone-Poulenc Chimie S.A.'s Thann et Mulhouse titanium dioxide ("TiO2") and
related intermediate and specialty chemical operations in France for $185,
including assumed debt. The operations in France provide capacity to produce
approximately 138 thousand metric tons per year of TiO2. The purchase price was
allocated to the net assets acquired, principally property, plant and equipment
and working capital, based on their fair value.

     On July 1, 1998, the Company completed the acquisition of 99% of the voting
shares and 72% of total shares of Titanio do Brazil S.A. ("Tibras"), Brazil's
only integrated TiO2 producer, for $129, including assumed debt. This
acquisition was also accounted for using the purchase method of accounting with
the purchase price allocated to the net assets acquired, principally property,
plant and equipment and working capital based on their fair value. The two
operations comprising Tibras included a plant which has capacity to produce
approximately 60 thousand metric tons per year of TiO2 and a mineral sands mine
with over 2 million metric tons of recoverable reserves.

     On November 16, 1998, the Company entered into agreements with Linde AG
("Linde") relating to the Company's synthesis gas ("syngas") unit in La Porte,
Texas, and a 15% interest in its methanol business, whereby the Company would
receive $122.5 in cash. Linde will operate the syngas facility under a long-term
lease with a purchase option. In addition, Linde will operate and hold a 15%
interest in the methanol facility. As a result, the assets involved in this
transaction, including applicable goodwill of $42, have been classified at
December 31, 1998 in the accompanying balance sheet as Assets of discontinued
interests. This transaction was subsequently completed on January 18, 1999. No
gain or loss resulted from this transaction.

     In March 1996, the Company sold a 73.6% interest in Suburban Propane,
through an initial public offering of 21,562,500 common units in a new master
limited partnership, Suburban Propane Partners, L.P., and received aggregate
proceeds from the sale of the common units and the issuance of notes of the
Suburban Propane operating partnership, Suburban Propane, L.P., of approximately
$831, resulting in a pre-tax gain of $210. The Company retained a combined
subordinated and general partnership interest of 26.4% in Suburban Propane
Partners L.P. and Suburban Propane L.P. (collectively "Suburban Propane"). On
November 27, 1998, the Company entered into an agreement to sell its remaining
interest to Suburban Propane and its management for $75 in cash, with an
expected net after-tax gain of approximately $30. As such, Suburban Propane is
reflected as a discontinued operation for all periods presented and the
Company's interest at December 31, 1998 is included in Assets of discontinued
interests. This transaction is expected to be completed in the second quarter of
1999.


NOTE 3--SIGNIFICANT ACCOUNTING POLICIES

     Use of Estimates: The preparation of financial statements in conformity
with generally accepted accounting principles requires management to make
estimates and assumptions that affect the reported amounts of assets and
liabilities at the date of the financial statements and the reported amounts of
revenues and expenses during the reporting period. Actual results could differ
from those estimates.

     Reclassification: Certain prior year balances have been reclassified to
conform with the current year presentation.

     Cash Equivalents: Cash equivalents represent investments in short-term
deposits and commercial paper with banks which have original maturities of 90
days or less. In addition, investments and other assets include approximately
$31 and $83 in restricted cash at December 31, 1998 and 1997, respectively,
which is on deposit to satisfy insurance claims.

     Inventories: Inventories are stated at the lower of cost or market value.
For certain United States operations, cost is determined under the last-in,
first-out (LIFO) method. The first-in, first-out (FIFO) method, or methods which
approximate FIFO, are used by all other subsidiaries.

     Property, Plant and Equipment: Property, plant and equipment is stated on
the basis of cost. Depreciation is provided by the straight-line method over the
estimated useful lives of the assets, generally 20 to 40 years for buildings and
5 to 25 years for machinery and equipment.

     Goodwill: Goodwill represents the excess of the purchase price over the
fair value of assets allocated to acquired companies. Goodwill is being
amortized using the straight-line method over 40 years. Management periodically
evaluates goodwill for impairment based on the anticipated future cash flows
attributable to its operations. Such expected cash flows, on an undiscounted
basis, are compared to the carrying value of the tangible and intangible assets,
and if impairment is indicated, the carrying value of goodwill is adjusted. In
the opinion of management, no impairment of goodwill exists at December 31,
1998. In connection with the formation of Equistar, consolidated goodwill was
reduced by $1,253 in 1997.


                                                                              35





<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                 ---------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                    (DOLLARS IN MILLIONS, EXCEPT SHARE DATA)


     Environmental Liabilities and Expenditures: Accruals for environmental
matters are recorded in operating expenses when it is probable that a liability
has been incurred and the amount of the liability can be reasonably estimated.
Accrued liabilities are exclusive of claims against third parties (except where
payment has been received or the amount of liability or contribution by such
other parties, including insurance companies, has been agreed) and are not
discounted. In general, costs related to environmental remediation are charged
to expense. Environmental costs are capitalized if the costs increase the value
of the property and/or mitigate or prevent contamination from future operations.

     Foreign Currency Translation: Assets and liabilities of the Company's
foreign operating subsidiaries are translated at the exchange rates in effect at
the balance sheet dates, while revenue, expenses and cash flows are translated
at average exchange rates for the reporting period. Resulting translation
adjustments are recorded as a currency component of Shareholders' equity. Gains
and losses resulting from foreign exchange changes on transactions denominated
in currencies other than the functional currency are recognized in income in the
Consolidated Statements of Operations except for gains and losses on hedges of
net investments which are included as a component of Shareholders' equity.

     Prior to the Demerger, certain of the Company's subsidiaries, whose
holdings principally consisted of sterling-denominated cash deposits, were
considered to hedge a portion of Hanson's investments in the United States. The
functional currency of these subsidiaries was the local currency. After the
Demerger, such deposits no longer acted as a hedge; instead, the entities were
primarily holding companies, the assets of which were remittable to the Company.
As such, the functional currency of these subsidiaries was changed to the U.S.
dollar. Gains from the remeasurement of these deposits and other assets and
liabilities into U.S. dollars are included in Other expense, net, and aggregated
$34 for the year ended December 31, 1996.

     Federal Income Taxes: Deferred tax assets and liabilities are computed
based on the difference between the financial statement basis and income tax
basis of assets and liabilities using enacted marginal tax rates of the
respective tax jurisdictions. Deferred income tax expense (credit) is based on
the changes in the assets and liabilities from period to period.

     The Company and certain of its subsidiaries have entered into tax-sharing
and indemnification agreements with Hanson or its subsidiaries in which the
Company and/or its subsidiaries generally agreed to indemnify Hanson or its
subsidiaries for income tax liabilities attributable to periods when such other
operations were included in the consolidated tax returns of the Company's
subsidiaries.

     Research and Development: The cost of research and development efforts is
expensed as incurred. Such costs aggregated $21, $28 and $39 for the years ended
December 31, 1998, 1997 and 1996, respectively.

     Earnings per share: The weighted-average number of common equivalent shares
outstanding used in computing earnings per share for 1998, 1997 and 1996 was as
follows:

<TABLE>
<CAPTION>
=====================================================================
                                   1998          1997          1996
- ---------------------------------------------------------------------
<S>                                 <C>           <C>           <C>
Basic                        75,126,209    74,484,588    74,412,283
Options                         119,939        31,846            --
Restricted shares               450,500       130,000            --
                             ----------    ----------    ----------
Diluted                      75,696,648    74,646,434    74,412,283
                             ==========    ==========    ==========
</TABLE>

     Pro forma income from continuing operations for 1996 was calculated as if:
(a) the Demerger had been consummated at the beginning of the period; (b) the
changes in the Company's capital structure resulting from the Demerger had
occurred on such date; (c) the Company's level of general and administrative
corporate costs is that as if it operated as a separate entity; and (d)
compensation expense related to the restricted share awards pursuant to the Long
Term Stock Incentive Plan (see Note 10) had been incurred for a full year.


NOTE 4--SUPPLEMENTAL BALANCE SHEET INFORMATION

<TABLE>
<CAPTION>
=====================================================================
                                                 1998          1997
- ---------------------------------------------------------------------
<S>                                               <C>           <C>
TRADE RECEIVABLES
Trade receivables                                $245          $371
Allowance for doubtful accounts                    (3)           (2)
                                                 ----          ----
                                                 $242          $369
                                                 ====          ====
INVENTORIES
Finished products                                $139          $121
In-process products                                28            21
Raw materials                                     117            89
Other inventories                                  50            42
                                                 ----          ----
                                                 $334          $273
                                                 ====          ====
</TABLE>

     Inventories valued on a LIFO basis were approximately $41 and $32 less than
the amount of such inventories valued at current cost at December 31, 1998 and
1997, respectively.

36



<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                 ---------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                    (DOLLARS IN MILLIONS, EXCEPT SHARE DATA)


<TABLE>
<CAPTION>
=====================================================================
                                                 1998          1997
- ---------------------------------------------------------------------
<S>                                               <C>           <C>
PROPERTY, PLANT AND EQUIPMENT
Land and buildings                             $  267        $  217
Machinery and equipment                         1,377         1,205
                                               ------        ------
                                                1,644         1,422
Allowance for depreciation
  and amortization                                600           571
                                               ------        ------
                                               $1,044        $  851
                                               ======        ======
GOODWILL                                       $  480        $  528
Accumulated amortization                           68            60
                                               ------        ------
                                               $  412        $  468
                                               ======        ======
</TABLE>

<TABLE>
<CAPTION>
=====================================================================
                                   1998          1997          1996
- ---------------------------------------------------------------------
<S>                                 <C>           <C>           <C>
Amortization expense               $ 14          $ 45          $ 48
</TABLE>

     Rental expense for operating leases is as follows:

<TABLE>
<CAPTION>
=====================================================================
                                   1998          1997          1996
- ---------------------------------------------------------------------
<S>                                 <C>           <C>           <C>
Minimum rentals                   $ 12           $ 55          $ 53
</TABLE>

Future minimum rental commitments under non-cancelable operating leases, as
of December 31, 1998, are as follows:

<TABLE>
<S>                  <C>
1999                  $11
2000                    8
2001                    4
2002                    3
2003                    2
Thereafter             12
</TABLE>


NOTE 5--IMPAIRMENT OF LONG-LIVED ASSETS

     During 1996, the Company recorded a $75 non-recurring charge ($48 after
tax), to reduce the carrying value of certain facilities employed in
sulfate-process manufacturing of TiO2 and to provide for the cost associated
with the closure of certain of these facilities. During the first half of 1996,
intense price competition was experienced, as customers of the anatase products
associated with the sulfate-process operations sought more cost efficient
manufacturing inputs to their applications. As a result of the deterioration of
market conditions in the TiO2 industry, the Company decided to implement a
program which included a reduction of its sulfate-process manufacturing capacity
in both the United Kingdom and United States. The carrying value of plant and
equipment associated with sulfate-process manufacturing was reduced by $60 as a
result of evaluating the recoverability of such assets under the unfavorable
market conditions existing at that time. The amount of the write-down was
determined by comparison to the fair value of the related assets, as determined
based on the projected discounted cash flows identified to such assets.

     During 1996, the Company also recorded an initial non-cash charge resulting
from adopting the evaluation methodology provided by SFAS 121 of $4,497 ($3,206
after tax), related to one of the Discontinued Businesses. Prior to the adoption
of SFAS 121, asset impairment was evaluated at an operating company level based
on the contribution of operating profits and undiscounted cash flows being
generated from those operations. Under this policy, assets used in one of the
Discontinued Businesses, comprised of approximately 20 separate operating
companies, were evaluated for impairment based on gross margins and cash flows
generated by each separate operating company in a given business cycle.
Evaluation of the businesses' assets at this level did not result in any
impairment.

     SFAS 121 requires the impairment review to be performed at the lowest level
of asset grouping for which there are identifiable cash flows which represents a
change from the level at which the previous accounting policy measured
impairment. In this case, economic groupings of assets were made based on local
marketplaces. Evaluation of assets at this lower grouping level indicated an
impairment of certain of those assets. The impairment loss was measured based on
the difference between estimated discounted cash flows and the carrying value of
such assets.


NOTE 6--INCOME TAXES

<TABLE>
<CAPTION>
=====================================================================
                                   1998          1997          1996
- ---------------------------------------------------------------------
<S>                                 <C>           <C>           <C>
PRE-TAX INCOME IS GENERATED FROM
United States                     $ 101         $ 321       $    12
Foreign                             101            26            71
                                  -----         -----       -------
                                    202           347            83
                                  =====         =====       =======
INCOME TAXES ARE COMPRISED OF
Federal
   Current                        $ (36)        $  19       $    67
   Deferred                          43           116        (1,083)
Foreign                              23             6            15
State and local                       8            16            23
                                  -----         -----       -------
                                     38           157          (978)
                                  =====         =====       =======
INCOME TAXES ARE CLASSIFIED AS
Continuing operations             $  37         $ 159       $    50
Discontinued operations               1            (2)       (1,028)
                                  -----         -----       -------
                                  $  38         $ 157       $  (978)
                                  =====         =====       =======
</TABLE>


                                                                              37





<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                 ---------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                    (DOLLARS IN MILLIONS, EXCEPT SHARE DATA)


     The Company's effective income tax rate differs from the amount computed by
applying the statutory federal income tax rate as follows:

<TABLE>
<CAPTION>
===============================================================================
                                             1998          1997          1996
- -------------------------------------------------------------------------------
<S>                                           <C>           <C>           <C>
CONTINUING OPERATIONS
Statutory federal income tax rate            35.0%         35.0%         35.0%
State and local income taxes,
  net of federal benefit                      2.4           3.0          17.0
Provision for non-deductible expenses,
  primarily goodwill amortization             7.6           5.2          20.8
Foreign rate differential                    (5.1)                      (10.0)
Utilization of net operating loss
  carryforwards                                                         (20.3)
Tax benefit from previous years             (20.8)          --            --
Other                                        (0.8)          2.6          17.7
                                            -----          ----         -----
Effective income tax rate for
  continuing operations                      18.3%         45.8%         60.2%
                                            -----          ----         -----
DISCONTINUED OPERATIONS
Effective income tax rate                    38.9%         45.8%         30.7%
                                            =====          ====         =====
</TABLE>

     As a result of a favorable tax judgement received during 1998, the Company
recorded a benefit of $42 related to taxes recoverable from previous years' tax
filings.

     The difference between the effective income tax rate on discontinued
operations and the statutory federal income tax rate in 1996 primarily relates
to non-deductible goodwill amortization and tax depletion of the Discontinued
Businesses.

     At December 31, 1998, certain foreign subsidiaries of the Company had
available net operating loss carryforwards aggregating $20, which are subject to
certain limitations on their use.

     Significant components of deferred taxes are as follows:

<TABLE>
<CAPTION>
=====================================================================
                                                 1998          1997
- ---------------------------------------------------------------------
<S>                                               <C>           <C>
DEFERRED TAX ASSETS
Environmental and legal obligations             $  54         $  62
Other postretirement benefits
  and pension obligations                          47            60
Net operating loss carryforwards                   20            28
Capital loss carryforwards                        136           143
AMT credits                                        98           131
Other accruals                                     40            59
                                                -----         -----
                                                  395           483

Valuation allowance                              (136)         (143)
                                                -----         -----
  Total deferred tax assets                       259           340
                                                -----         -----

DEFERRED TAX LIABILITIES
Excess of book over tax basis
  in property, plant and equipment                400           412
Other                                             183           186
                                                -----         -----
  Total deferred tax liabilities                  583           598
                                                -----         -----
  Net deferred tax liabilities ($10 in 1998
    and $22 in 1997, classified in
    Current assets)                             $ 324         $ 258
                                                =====         =====
</TABLE>

     Certain of the income tax returns of the Company's subsidiaries are
currently under examination by the Internal Revenue Service and various state
tax agencies. In the opinion of management, any assessments which may result
will not have a material adverse effect on the financial condition or results of
operations of the Company.
     Income taxes paid during 1998 and 1997 were $40 and $53, respectively.


NOTE 7--LONG-TERM DEBT AND CREDIT ARRANGEMENTS

<TABLE>
<CAPTION>
=====================================================================
                                                 1998          1997
- ---------------------------------------------------------------------
<S>                                               <C>           <C>
Revolving Credit Facility bearing interest
  at the prime lending rate, or at LIBOR
  or NIBOR plus .275%, at the option of
  the Company, plus a Facility Fee of .15%
  to be paid quarterly                         $  235        $  546
7% Senior Notes due 2006 (net of
  unamortized discount of $.5 and $.5)            500           500
7.625% Senior Notes due 2026 (net of
  unamortized discount of $1.1 and $1.1)          249           249
Debt payable through 2007 at interest
  rates ranging from 2.4% to 22%                   69            52
Less current maturities of long-term debt         (14)          (20)
                                               ------        ------
                                               $1,039        $1,327
                                               ======        ======
</TABLE>

     Under the Revolving Credit Agreement, as amended on October 20, 1997,
certain of the Company's subsidiaries may borrow up to $500 under an unsecured
multi-currency revolving credit facility, which matures in July 2001 (the
"Credit Agreement" or the "Revolving Credit Facility"). The Company is the
guarantor of this facility. Borrowings under the Credit Agreement may consist of
standby loans or uncommitted competitive loans offered by syndicated banks
through an auction bid procedure. Loans may be borrowed in U.S. dollars and/or
other currencies. The proceeds from the borrowings may be used to provide
working capital and for general corporate purposes.

     The Credit Agreement contains covenants and provisions that restrict, among
other things, the ability of the Company and its material subsidiaries to:
(i) create liens on any of its property or assets, or assign any rights to or
security interests in future revenues; (ii) engage in sale-and-leaseback
transactions; (iii) engage in mergers, consolidations or sales of all or
substantially all of their assets on a consolidated basis; (iv) enter into
agreements restricting dividends and advances by their subsidiaries; and (v)
engage in transactions with affiliates other than those based on arm's-length
negotiations. The Credit Agreement also limits the ability of certain
subsidiaries of the Company to incur indebtedness or issue preferred stock. In
addition, the Credit Agreement requires the Company to satisfy certain financial
performance criteria.

     The Senior Notes and Senior Debentures were issued by Millennium America
Inc., a wholly owned subsidiary of the

38



<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                 ---------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                    (DOLLARS IN MILLIONS, EXCEPT SHARE DATA)


Company, and are guaranteed by the Company. The indenture under which the Senior
Notes and Senior Debentures were issued contains certain covenants that limit,
among other things: (i) the ability of Millennium America Inc. and its
Restricted Subsidiaries (as defined) to grant liens or enter into
sale-and-leaseback transactions; (ii) the ability of the Restricted Subsidiaries
to incur additional indebtedness; and (iii) the ability of Millennium America
Inc. and the Company to merge, consolidate or transfer substantially all of
their respective assets.

     At December 31, 1998, the Company had outstanding notes payable of $29
bearing interest at an average rate of approximately 12% with maturity of 30
days or less; no outstanding notes were payable December 31, 1997. At December
31, 1998, the Company had outstanding standby letters of credit amounting to
$102 and had unused availability under short-term lines of credit and its
Revolving Credit Facility of $432. In addition, Millennium America Inc. has
guaranteed certain debt obligations of Equistar up to $750.

     The maturities of long-term debt during the next five years are as follows:
1999 -- $5; 2000 -- $24; 2001 -- $245; 2002 -- $5; and 2003 and beyond -- $760.

     Interest paid for the years ended December 31, 1998, 1997 and 1996 was $72,
$129 and $58, respectively.


NOTE 8 -FINANCIAL INSTRUMENTS

     Fair Value of Financial Instruments: The fair value of all short-term
financial instruments approximate their carrying value due to their short
maturity. The fair value of long-term financial instruments (excluding forward
exchange contracts, interest rate protection agreements and the Senior Notes and
Senior Debentures) approximates carrying value as they were based on terms that
continue to be available to the Company from its lenders.

     The fair value of the Company's other financial instruments are based upon
estimates received from independent financial advisors as follows:

<TABLE>
<CAPTION>
=================================================================================================
                                                    1998                            1997
- -------------------------------------------------------------------------------------------------
                                          CARRYING          FAIR         Carrying          Fair
                                             VALUE         VALUE            Value         Value
<S>                                            <C>           <C>              <C>           <C>
Senior Notes and Debentures                  $ 749         $ 695           $ 749          $ 748
</TABLE>

     Off Balance Sheet Risk: The Company has certain receivables, payables and
borrowings denominated in currencies other than the functional currency of the
Company and/or its subsidiaries. The Company hedges certain of these exposures
by entering into forward exchange contracts. Gains and losses related to these
hedges are recognized in income as part of, and concurrent with the hedged
transactions. The Company does not use derivative financial instruments for
trading or speculative purposes.

     The table below summarizes the contractual amounts of the Company's forward
exchange contracts at December 31, 1998, all of which mature within 90 days. The
foreign currency amounts have been translated into U.S. dollars using applicable
exchange rates at December 31, 1998.

<TABLE>
<CAPTION>
==================================================
                                            Sell
- --------------------------------------------------
<S>                                          <C>
German Marks                                $  2
French Francs                                  6
Italian Lira                                   5
Belgium Francs                                 5
Spanish Pesetas                                3
Other                                          3
                                            ----
                                            $ 24
                                            ====
</TABLE>

     SFAS 133: On June 15, 1998, the Financial Accounting Standards Board issued
SFAS 133, "Accounting for Derivatives and Hedging Activities," effective for
fiscal years beginning after June 15, 1999 (January 1, 2000 for the Company).
SFAS 133 requires that all derivative instruments be recorded on the balance
sheet at their fair value. Changes in the fair value of derivatives are recorded
each period in net income or as Comprehensive income, depending on whether a
derivative is designated as part of a hedge transaction and, if it is, the type
of hedge transaction. The Company is currently evaluating the implications of
this new pronouncement but, due to the Company's limited use of derivative
instruments, the adoption of SFAS 133 is not expected to have a significant
effect on the Company's results of operations or its financial position.


NOTE 9--PENSION AND OTHER POSTRETIREMENT BENEFITS

     Domestic Pension Plans: The Company has adopted SFAS 132, Employers'
Disclosures about Pensions and Other Postretirement Benefits. SFAS 132 revises
the employer's disclosure presentation but does not change the measurement or
recognition of these plans.

     The Company has several noncontributory defined benefit pension and other
postretirement benefit plans covering substantially all of its United States
employees. The benefits for these plans are based primarily on years of credited
service and average compensation as defined under the respective plan
provisions. The Company's funding policy is to contribute amounts to the plans
sufficient to meet the minimum funding requirements set forth in the Employee
Retirement Income Security Act of 1974, plus such additional amounts as the
Company may determine to be appropriate from time to time.


                                                                              39





<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                 ---------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                    (DOLLARS IN MILLIONS, EXCEPT SHARE DATA)


     The Company also sponsors defined contribution plans for its salaried and
certain union employees. Contributions relating to defined contribution plans
are made based upon the respective plan provisions.

     The following table provides a reconciliation of the changes in the benefit
obligations and the fair value of the plan assets over the two-year period
ending December 31, 1998, and a statement of the funded status as of December 31
for both years.

<TABLE>
<CAPTION>
====================================================================================
                                            Pension                Other Post-
                                            Benefits           retirement Benefits
                                        1998       1997          1998       1997
- ------------------------------------------------------------------------------------
<S>                                      <C>        <C>           <C>        <C>
RECONCILIATION OF BENEFIT OBLIGATION
Projected benefit obligation at
  December 31                          $ 671      $ 636         $ 127      $ 234
Service cost, including interest           7         14            10          8
Interest on PBO                           46         45            --         --
Participant contributions                 --         --             2          2
Benefit payments                         (79)       (54)          (14)       (15)
Special termination benefits               6         --            --          1
Curtailments                              (2)         5                        
Net experience loss (gain)                42         25             2        (19)
Amendments                                24                                 (65)
Divestiture                               --         --            --        (19)
                                       -----      -----         -----      -----
Projected benefit obligation
  at December 31                         715        671           127        127
                                       -----      -----         -----      -----

RECONCILIATION OF FAIR VALUE
  OF PLAN ASSETS
Fair value of plan assets at
  December 31                            776        718            --         --
Return on plan assets                     87        106            --           
Employer contributions                     2          6            11         13
Participant contributions                                           2          2
Benefit payments                         (75)       (54)          (13)       (15)
                                       -----      -----         -----      -----
Fair value of plan assets at
  December 31                            790        776            --         --
                                       -----      -----         -----      -----

FUNDED STATUS
Funded status at December 31              75        105          (127)      (127)
Unrecognized net asset                    (1)        (1)                       
Unrecognized prior-service cost           23          5            --         --
Unrecognized loss (gain)                  22         10           (23)       (26)
Additional minimum liability              (8)        (5)           --         --
                                       -----      -----         -----      -----
Prepaid (accrued) interest             $ 111      $ 114         $(150)     $(153)
                                       =====      =====         =====      =====
</TABLE>

     The following table provides the components of net periodic benefit cost
for the plans for 1998 and 1997.

     Pension benefit income was $10 while other postretirement benefits costs
were $6 for the year ended December 31, 1996.

<TABLE>
<CAPTION>
====================================================================================
                                            Pension                Other Post-
                                            Benefits           retirement Benefits
                                        1998       1997          1998       1997
- ------------------------------------------------------------------------------------
<S>                                      <C>        <C>           <C>        <C>
NET PERIODIC BENEFIT COST
Service cost, including interest        $   7      $  13        $  10      $   8
Interest on PBO                            46         45           --         
Return on plan assets                     (61)       (82)          --         --
Amortization of unrecognized
  net loss                                  2         --           (2)        (2)
Amortization of prior service cost          1          1           --         
Deferral                                   --         21           --         --
Special termination benefits                6                      --          2
Recognition of prior service cost           5         --           --         --
Curtailment loss                                       5                       
                                        -----      -----        -----      -----
Net periodic benefit cost                   6          3            8          8
Defined contribution plans                  1          1          
                                        -----      -----        -----      -----
Net periodic benefit cost
  after curtailment                     $   7      $   4        $   8      $   8
                                        =====      =====        =====      =====
</TABLE>

The assumptions used in the measurement of the Company's benefit obligations are
shown in the following table:

<TABLE>
<CAPTION>
====================================================================================
                                            Pension                Other Post-
                                            Benefits           retirement Benefits
                                        1998       1997          1998       1997
- ------------------------------------------------------------------------------------
<S>                                      <C>        <C>           <C>        <C>
WEIGHTED-AVERAGE ASSUMPTIONS
  AS OF DECEMBER 31
  Discount rate                         7.00%      7.25%         7.00%      7.25%
  Expected return on plan assets        9.00%      9.00%         
  Rate of compensation increase         4.25%      4.25%         4.25%      4.25%
</TABLE>

     The projected benefit obligation, accumulated benefit obligation and the
fair value of plan assets for pension plans with accumulated benefit obligations
in excess of the plan assets were $42, $40 and $28, respectively, for the year
ended December 31, 1998; and $36, $34 and $25; respectively, for the year ended
December 31, 1997.

     Assumed health care cost trend rates have a significant effect on the
amounts reported for the health care plans. A 1% increase or decrease in assumed
health care cost trend rates would affect service and interest components of
postretirement health care benefit cost by $1 for the years ended December 31,
1998 and 1997, respectively. The effect on the accumulated postretirement
benefit obligation would be $8 for the years ended December 31, 1998 and 1997,
respectively.

     Foreign Benefit Arrangements: The Company's foreign subsidiaries have
several defined benefit plans. The assets of these plans are held separately
from the Company in independent funds. The total pension expense was $3 in each
of the years ended December 31, 1998 and 1997.

40



<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                 ---------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                    (DOLLARS IN MILLIONS, EXCEPT SHARE DATA)


     Where required, the contributions are determined by a qualified actuary
every three years. The most recent such valuation was April 1, 1998. Assumptions
were 8% per year for return on investment, 8% per year for salary increases and
4% per year for present and future pension increases.

     The aggregate market value of the plan assets was $110, approximately 120%
of the benefit obligations, after allowing for expected future increases in
earnings.


NOTE 10--EMPLOYEE BENEFIT PLANS

     The Company adopted a Long Term Stock Incentive Plan ("Stock Incentive
Plan") for the purpose of enhancing the profitability and value of the Company
for the benefit of its shareholders. A maximum of 3,909,000 shares of Common
Stock may be issued or used for reference purposes pursuant to the Stock
Incentive Plan.

     The Stock Incentive Plan provides for the following types of awards to
employees: (i) stock options, including incentive stock options and
non-qualified stock options; (ii) stock appreciation rights; (iii) restricted
stock; (iv) performance units; and (v) performance shares. The vesting schedule
for granted restricted stock awards is as follows: (i) three equal tranches
aggregating 25% of the total award will vest in each of October 1999, 2000 and
2001; and (ii) three equal tranches aggregating 75% of the total award will be
subject to the achievement of "value creation" performance criteria established
by the Compensation Committee for each of the three performance cycles
commencing January 1, 1997 and ending December 31, 1999, 2000 and 2001,
respectively. If and to the extent such criteria are achieved, half of the
earned portion of a tranche relating to a particular performance-based cycle of
the award will vest immediately and the remainder will vest in five equal annual
installments commencing on the first anniversary of the end of the cycle.

     Options granted under the Stock Incentive Plan vest three years from the
date of grant and expire ten years from the date of grant. All grants under the
Stock Incentive Plan fully vest in the event of a change-in-control (as defined
by the plan) of the Company, or in the case of employees of a subsidiary of the
Company, a change-in-control of the relevant subsidiary.

     The Company has authorization under the Stock Incentive Plan to grant
awards for up to an additional 184,256 shares at December 31, 1998.

     Unearned restricted stock, based on the market value of the shares at each
balance sheet date, is included as a separate component of Shareholders' equity
and amortized over the restricted period. Compensation expense of $6, $23 and $2
was recognized for the years ended December 31, 1998, 1997 and 1996,
respectively. Expense for 1997 included $12 as a result of the change-in-control
provisions being triggered by the formation of Equistar for certain restricted
stock awards and options held by employees of Millennium Petrochemicals.

     A summary of changes in the awards under the Stock Incentive Plan (other
than awards to non-employee directors) is as follows:

<TABLE>
<CAPTION>
====================================================================================
                                           Weighted                      Weighted
                                            Average                       Average
                            Restricted        Grant          Share       Exercise
                                Shares        Price         Options         Price
- ------------------------------------------------------------------------------------
<S>                                <C>          <C>            <C>            <C>
Initial awards on
  October 8, 1996            2,912,322      $ 22.32        523,000        $ 19.00
                             ---------      -------       --------        -------
Balance at
  December 31, 1996          2,912,322      $ 22.32        523,000        $ 19.00
Vested and issued             (683,273)       22.32             --          19.00
Cancelled                     (226,491)       22.32       (200,000)         19.00
Granted                        174,736        23.72         81,000          22.15
                             ---------                    --------
Balance at
  December 31, 1997          2,177,294        22.43        404,000          19.79
Vested and issued               (5,600)       22.32        (59,000)         19.00
Cancelled                      (25,538)       22.32             --             --
Granted                        311,153        33.15        160,000          23.91
                             ---------                    --------
BALANCE AT
 DECEMBER 31, 1998           2,457,309      $ 23.81        505,000         $21.15
                             =========      =======       ========        =======
</TABLE>

     For options outstanding at December 31, 1998, the range of exercise prices
was $18.00 to $34.875 per share, and the weighted-average remaining contractual
life was 9 years. The weighted-average fair value at December 31, 1998, was $4
per share option.

     The Company adopted the disclosure-only provisions of SFAS 123, "Accounting
for Stock-Based Compensation." The impact on net income and earnings per share
would not have been materially different had compensation expense for the
Company's incentive plan been determined based on the fair value of such grants
on the grant date in accordance with the provisions of SFAS 123.

     The Company has a deferred compensation plan that permits officers,
directors and certain management employees to defer a portion of their
compensation on a pre-tax basis in the form of Common Stock. A rabbi trust (the
"Trust") has been established to hold shares of Common Stock purchased in open
market transactions to fund this obligation. Shares purchased by the Trust are
reflected as Treasury stock and along with the related obligation for this plan,
are included in Shareholders' equity. At December 31, 1998, 256,987 shares have
been purchased for $7 and are held in the Trust.

     The Company has a Long Term Incentive Plan for certain management
employees. The plan provides for awards of Common Stock to be granted if annual
EVA'r' targets are achieved. Such


                                                                              41





<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                 ---------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                    (DOLLARS IN MILLIONS, EXCEPT SHARE DATA)

earned shares are held in a trust until certain vesting provisions are
satisfied. Such awards will vest on the later of: (a) three years following the
date of grant or (b) achievement of cumulative positive EVA'r' during a
three-consecutive-year period. Unvested shares will be forfeited after six
years. Compensation expense of $1 was recognized in 1998.


NOTE 11--RELATED PARTY TRANSACTIONS

     One of the Company's subsidiaries purchases ethylene from Equistar at
market-related prices pursuant to an agreement made in connection with the
formation of Equistar. Under the agreement the subsidiary is required to
purchase 100% of its ethylene requirements for its La Porte, Texas, facility up
to a maximum of 330 million pounds per year. The initial term of the contract
expires December 1, 2000. Thereafter, the contract automatically renews
annually. Either party may terminate on one year's notice. The subsidiary
incurred charges of $41 in 1998 under this contract.

     One of the Company's subsidiaries and Equistar have entered into various
operating, manufacturing and technical service agreements. These agreements
provide the subsidiary with materials management, certain utilities,
administrative office space, health, safety and environmental services. The
subsidiary incurred charges of $5 in 1998 for such services.


NOTE 12--COMMITMENTS AND CONTINGENCIES

     The Company is subject, among other things, to several proceedings under
the Federal Comprehensive Environmental Response Compensation and Liability Act
and other federal and state statutes or agreements with third parties. These
proceedings are in various stages ranging from initial investigation to active
settlement negotiations to implementation of the clean-up or remediation of
sites. Additionally, certain of the Company's subsidiaries are defendants or
plaintiffs in lawsuits that have arisen in the normal course of business
including those relating to commercial transactions and product liability. While
certain of the lawsuits involve allegedly significant amounts, it is
management's opinion, based on the advice of counsel, that the ultimate
resolution of such litigation will not have a material adverse effect on the
Company's financial position or results of operations. The Company believes that
the range of potential liability for these matters, collectively, which
primarily relate to environmental remediation activities, is between $150 and
$176 and has accrued $176 as of December 31, 1998.

     The Company has various contractual obligations to purchase raw materials
used in its production of TiO2 and fragrance and flavor chemicals. Commitments
to purchase ore used in the production of TiO2 are generally 1-to 8-year
contracts with competitive prices generally determined at a fixed amount subject
to escalation for inflation. Total commitments to purchase ore for TiO2
aggregate approximately $1,100 and expire between 1999 and 2002. Commitments to
acquire crude sulfate turpentine, used in the production of fragrance chemicals,
are generally pursuant to 1-to 5-year contracts with prices based on the market
price and which expire between 1999 and 2008.

     The Company is organized under the laws of Delaware and is subject to
United States federal income taxation of corporations. However, in order to
obtain clearance from the United Kingdom Inland Revenue as to the tax-free
treatment of the Demerger stock dividend for United Kingdom tax purposes for
Hanson and Hanson's shareholders, Hanson agreed with the United Kingdom Inland
Revenue that the Company will continue to be centrally managed and controlled in
the United Kingdom at least until September 30, 2001. Hanson also agreed that
the Company's Board of Directors will be the only medium through which strategic
control and policy making powers are exercised, and that board meetings almost
invariably will be held in the United Kingdom during this period. The Company
has agreed not to take, or fail to take, during such five-year period, any
action that would result in a breach of, or constitute non-compliance with, any
of the representations and undertakings made by Hanson in its agreement with the
United Kingdom Inland Revenue and to indemnify Hanson against any liability and
penalties arising out of a breach of such agreement. The Company's By-Laws
provide for similar constraints. The Company and Hanson estimate that such
indemnification obligation would have amounted to approximately $421 if it had
arisen during the twelve months ended September 30, 1997, and that such
obligation will decrease by approximately $84 on each October 1 prior to October
1, 2001, when it will expire.

     If the Company ceases to be a United Kingdom tax resident at any time, the
Company will be deemed for purposes of United Kingdom corporation tax on
chargeable gains to have disposed of all of its assets at such time. In such a
case, the Company would be liable for United Kingdom corporation tax on
chargeable gains on the amount by which the fair market value of those assets at
the time of such deemed disposition exceeds the Company's tax basis in those
assets. The tax basis of the assets would be calculated in pounds sterling,
based on the fair market value of the assets (in pounds sterling) at the time of
acquisition of the assets by the Company, adjusted for United Kingdom inflation.
Accordingly, in such circumstances, the Company could incur a tax liability even
though it has not actually sold the assets and even though the underlying value
of the assets may not actually have appreciated (due to currency movements).
Since it is impossible to predict the future value of the Company's assets,
currency movements and inflation rates, it is impossible to predict the
magnitude of such liability, should it arise.

42



<PAGE>

<PAGE>


                           MILLENNIUM CHEMICALS INC.
                                 ---------------
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                    (DOLLARS IN MILLIONS, EXCEPT SHARE DATA)


NOTE 13--OPERATIONS BY BUSINESS SEGMENT AND GEOGRAPHIC AREA

     Using the guidelines set forth in SFAS 131, "Disclosures about Segments of
an Enterprise and Related Information," the Company's principal operations are
grouped into four business segments: titanium dioxide and related products;
acetyls; specialty chemicals; and polyethylene, alcohol and related products.
See page 19 for information with respect to these segments.

     Most of the Company's foreign operations are conducted by subsidiaries in
the United Kingdom, France, Brazil and Australia. Sales between the Company's
operations are made on terms similar to those of its third-party distributors.
Sales between geographic areas are not significant.

     Income and expense not allocated to industry segment in computing operating
income include interest income and expense and other income and expense of a
general corporate nature.

     Export sales from the United States for the years ended December 31, 1998,
1997 and 1996 were approximately $157, $273 and $272, respectively.

<TABLE>
<CAPTION>
===============================================================================
                                             1998          1997          1996
- -------------------------------------------------------------------------------
<S>                                           <C>           <C>           <C>
NET SALES
United States                              $  993        $2,677        $2,693
Non United States
  United Kingdom                              220           255           231
  France                                      228          
  Asia/Pacific                                160           138           146
  Brazil                                       76          
                                           ------        ------        ------
                                              684           393           377
                                           ------        ------        ------
Inter-area elimination                        (80)          (22)          (30)
                                           ------        ------        ------
Total                                      $1,597        $3,048        $3,040
                                           ======        ======        ======

OPERATING INCOME
United States                              $   90        $  422        $  245
Non-United States
  United Kingdom                               23            10            16
  France                                       22            --            --
  Asia/Pacific                                 54            17            22
  Brazil                                       16            --            --
                                           ------        ------        ------
                                              115            27            38
                                           ------        ------        ------
Total                                      $  205        $  449        $  283
                                           ======        ======        ======

IDENTIFIABLE ASSETS
United States                              $3,098        $3,599
Non-United States
  United Kingdom                              354           296
  France                                      288           253
  Asia/Pacific                                121           102
  Brazil                                      181         
  All Other                                    58            76
                                           ------        ------
                                            1,002           727
                                           ------        ------
Total                                      $4,100        $4,326
                                           ======        ======
</TABLE>


MARKET FOR REGISTRANT'S COMMON STOCK AND
RELATED SHAREHOLDER MATTERS

     The Common Stock of the Company is traded on the New York Stock Exchange
(the "NYSE") under the symbol "MCH". The following table sets forth the high and
low closing sales prices per share of Common Stock reported by the NYSE since
October 2, 1996, the commencement of "regular way" trading:

<TABLE>
<CAPTION>
=====================================================================
                                                 High           Low
- ---------------------------------------------------------------------
<S>                                               <C>           <C>
1996
Fourth quarter                                $23.000       $17.250

1997
First quarter                                 $20.875       $16.875
Second quarter                                 22.750        17.500
Third quarter                                  23.500        20.250
Fourth quarter                                 24.063        22.250

1998
First quarter                                 $33.625       $20.250
Second quarter                                 36.875        31.375
Third quarter                                  32.625        18.625
Fourth quarter                                 25.250        18.500
</TABLE>

     As of March 15, 1999, there were 29,014 record holders of Common Stock. The
closing price per share of Common Stock as reported by the NYSE on such date was
$19.00.

     On January 22, 1999, the Company declared a dividend of $0.135 per share of
Common Stock payable to all holders of record on March 24, 1999, and will carry
a United Kingdom notional tax credit of $0.015 per share in respect of the
dividend. This dividend will be paid on April 9, 1999.


                                                                              43












<PAGE>

<PAGE>

                "Excerpts from 1997 Annual Report to Shareholders"

                           Millennium Chemicals Inc.
                                ------------
                         Index to the Financial Review

                                       18
                     Selected and Quarterly Financial Data

                                       19
                              Segment Information

                                       20
                      Management's Discussion and Analysis
                of Financial Condition and Results of Operations

                                       28
                       Report of Independent Accountants

                                       29
                          Consolidated Balance Sheets

                                       30
                Consolidated (Combined) Statements of Operations

                                       31
                Consolidated (Combined) Statements of Cash Flows

                                       32
                       Consolidated (Combined) Statements
                       of Changes in Shareholders' Equity

                                       33
             Notes to Consolidated (Combined) Financial Statements

               Disclosure Concerning Forward-Looking Statements

All statements, other than statements of historical fact, included in this
Annual Report to Shareholders, including, without limitation, the statements
under "Management's Discussion and Analysis of Financial Condition and Results
of Operations" and "Outlook for 1998" are, or may be deemed to be,
forward-looking statements within the meaning of Section 21E of the Securities
Exchange Act of 1934 (the "Exchange Act"). Important factors that could cause
actual results to differ materially from those discussed in such forward-looking
statements ("Cautionary Statements") include: the balance between industry
production capacity and operating rates on the one hand, and demand for the
products of Millennium Chemicals Inc. (the "Company") and Equistar Chemicals, LP
("Equistar"), including ethylene, polyethylene and titanium dioxide, on the
other hand; the economic trends in the United States and other countries which
serve as the Company's and Equistar's marketplace; customer inventory levels;
competitive pricing pressures; the cost and availability of the Company's
feedstocks and other raw materials, including natural gas and ethylene;
competitive technology positions; and failure to achieve the Company's or
Equistar's productivity improvement and cost-reduction targets or to complete
construction projects on schedule.

Some of these Cautionary Statements are discussed in more detail under
"Management's Discussion and Analysis of Financial Condition and Results of
Operations." All subsequent written and oral forward-looking statements
attributable to the Company or persons acting on behalf of the Company are
expressly qualified in their entirety by such Cautionary Statements.


                                       17









<PAGE>

<PAGE>

                            Millennium Chemicals Inc.
                                  ------------
                      Selected and Quarterly Financial Data
                         (in millions except share data)


<TABLE>
<CAPTION>
Selected Financial Data                                                                           Three
                                                                     Year Ended                 Months Ended   Fiscal Year Ended
                                                                     December 31                 December 31      September 30
                                                     --------------------------------------     -------------  ------------------
                                                     1997(1)       1996                1995        1994        1994       1993(6)
- ---------------------------------------------------------------------------------------------------------------------------------
<S>                                                 <C>          <C>                 <C>          <C>       <C>         <C>
Income statement data
Net sales                                            $ 3,048    $ 3,040           $  3,800       $   908       $ 3,288   $   862
Operating income                                         449        283(2)             842           203           344       139
Income from continuing operations                        185        141(2)(3)          331            84            66       103
Net income (loss)                                        185     (2,701)(2)(3)(4)      349            96            94       123

Balance sheet data (at period end)
Total assets (5)                                     $ 4,326    $ 5,601            $10,043       $10,024       $ 9,691   $10,135
Total liabilities                                      2,862      4,283              5,242         5,166         5,053     4,692
Shareholders' equity (5)                               1,464      1,318              4,801         4,858         4,638     5,443

Other data (with respect to continuing operations)
Depreciation and amortization                        $   203    $   201            $   241       $    59       $   247   $    44
Capital expenditures                                     152        285                276            30           109        28
</TABLE>



(1) Includes 11 months of polyethylene, alcohol and related products businesses
which were contributed to Equistar Chemicals, LP ("Equistar") on December 1,
1997. Since December 1, 1997, the equity method is used to account for the 43%
interest held by Millennium Chemicals Inc. (the "Company").

(2) Includes the effects of non-recurring charges of $75 ($48 after-tax) to
reduce the carrying value of certain facilities employed in the sulfate-process
manufacturing of titanium dioxide ("TiO2") and to provide for the costs
associated with the closure of certain of these facilities, as described in Note
5 to the Consolidated (Combined) Financial Statements of the Company.

(3) Includes gain of $210 ($86 after-tax) resulting from the Company's sale in
March 1996 of a 73.6% equity interest in Suburban Propane Partners, L.P.
("Suburban Propane"), as described in Note 2 to the Consolidated (Combined)
Financial Statements of the Company. In 1995 and fiscal 1994, Suburban Propane
is included as a continuing operation.

(4) Includes the effects of a non-cash after-tax charge of $3,206 relating to
one of the Discontinued Businesses (as defined in Note 5 to the Consolidated
(Combined) Financial Statements of the Company) as a result of the Company's
adoption of the long-lived asset carrying value methodology provided by SFAS
121, as described in Note 5 to the Consolidated (Combined) Financial Statements
of the Company. The Discontinued Businesses were sold to Hanson on October 6,
1996.

(5) Includes net assets of the Discontinued Businesses: $3,772 at December 31,
1995; $3,757 at December 31, 1994; $3,757 at September 30, 1994; and, $3,935 at
September 30, 1993.

(6) Income statement data and other data for fiscal 1993 exclude the operations
of Millennium Petrochemicals, which was acquired on September 30, 1993, in a
transaction accounted for as a purchase.


<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------------------
Quarterly Financial Data                                         1st Qtr.      2nd Qtr.      3rd Qtr.      4th Qtr.
- -------------------------------------------------------------------------------------------------------------------
<S>                                                              <C>           <C>           <C>          <C>    

1997
Net sales                                                        $   794       $   813       $   816      $   625
Operating income                                                      66           132           157           94
Net income                                                            20            82            67           16
Basic earnings per share                                             .27          1.10           .90          .21

1996 
Net sales                                                        $   730       $   780       $   769      $   761
Operating income                                                      86            29            90           78
Net income (loss) from continuing operations                         112           (19)           10           38
Net (loss) income                                                 (3,078)          (33)           47          363
Income from continuing operations per share                         1.50         (0.26)         0.13         0.51
Net income per share                                              (41.36)        (0.44)         0.63         4.88
Pro forma income (loss) from continuing operations                   118           (10)           22           38
Pro forma income (loss) from continuing operations per share        1.59         (0.13)         0.30         0.51
</TABLE>


                                       18








<PAGE>

<PAGE>

                            Millennium Chemicals Inc.
                                  ------------
                               Segment Information
                                  (in millions)
<TABLE>
<CAPTION>

- -----------------------------------------------------------------------------------------------------
                                                            1997              1996              1995
- -----------------------------------------------------------------------------------------------------
<S>                                                       <C>               <C>               <C>
Net sales
Titanium dioxide and related products                     $  843            $  868            $  848
Acetyls                                                      271               240               328
Specialty chemicals                                          148               127               115
Polyethylene, alcohol and related products (1)             1,786             1,805             1,870
                                                          ------            ------            ------
                                                           3,048             3,040             3,161
Propane (2)                                                   --                --               639
                                                          ------            ------            ------
    Total                                                 $3,048            $3,040            $3,800
                                                          ------            ------            ------
                                                          ------            ------            ------
Operating income
Titanium dioxide and related products (3)                 $   60            $    7            $  177
Acetyls                                                       39                12                96
Specialty chemicals                                           42                36                31
Polyethylene, alcohol and related products (1)               308               228               485
                                                          ------            ------            ------
                                                             449               283               789
Propane (2)                                                   --                --                53
    Total                                                 $  449            $  283            $  842
                                                          ------            ------            ------
                                                          ------            ------            ------
Depreciation and amortization
Titanium dioxide and related products                     $   44            $   46            $   42
Acetyls                                                       28                24                29
Specialty chemicals                                            6                 4                 3
Polyethylene, alcohol and related products (1)               125               127               132
Propane (2)                                                   --                --                34
Corporate                                                     --                --                 1
                                                          ------            ------            ------
    Total                                                 $  203            $  201            $  241
                                                          ------            ------            ------
                                                          ------            ------            ------
Capital expenditures
Titanium dioxide and related products                     $   77            $   81            $  124
Acetyls                                                       24                65                30
Specialty chemicals                                           10                12                17
Polyethylene, alcohol and related products (1)                41               127                75
Propane (2)                                                   --                --                29
Corporate                                                     --                --                 1
                                                          ------            ------            ------
    Total                                                 $  152            $  285            $  276
                                                          ------            ------            ------
                                                          ------            ------            ------
Identifiable assets at year end

Titanium dioxide and related products                     $  908            $  854
Acetyls                                                      824               708
Specialty chemicals                                          108                87
Polyethylene, alcohol and related products (1)                --             3,241
Corporate (4)                                              2,486               711
                                                          ------            ------            
    Total                                                 $4,326            $5,601
                                                          ------            ------            
                                                          ------            ------            
</TABLE>

(1) Segment information for 1996 and 1995 has been restated to combine the
information for the polyethylene, alcohol and related products businesses which
have been contributed to Equistar as one segment. The Company's 43% interest in
Equistar is excluded from this segment beginning December 1, 1997, at which time
the equity method is used to account for this continuing investment.

(2) Suburban Propane is reflected as a continuing operation of the Company
through December 31, 1995. In March 1996, the Company sold a 73.6% interest in
Suburban Propane in an initial public offering. The Company has accounted for
its continuing investment using the equity method effective January 1, 1996.

(3) 1996 includes non-recurring charges of $75 ($48 after tax) to reduce the
carrying value of certain facilities employed in the sulfate-process
manufacturing of TiO2 and to provide for the costs associated with the closure
of certain of these facilities.

(4) Corporate assets consist primarily of cash and cash equivalents, equity
investments and other assets.


                                       19










<PAGE>

<PAGE>


                            Millennium Chemicals Inc.
                                  ------------
                      Management's Discussion and Analysis

Introduction 

Millennium Chemicals Inc.'s (the "Company") principal operations are grouped
into four business segments: titanium dioxide and related products, acetyls,
specialty chemicals and polyethylene, alcohol and related products. The
Company's businesses comprising the polyethylene, alcohol and related products
segment were contributed to Equistar Chemicals, LP ("Equistar"), a joint venture
partnership formed by the Company and Lyondell Petrochemical Company
("Lyondell") on December 1, 1997, to own and operate the olefins and polymers
businesses of the partners. Results of these businesses for the first eleven
months of 1997, before the formation of Equistar, are included. Since December
1, 1997, the Company's 43% share in the results of Equistar is accounted for
using the equity method.

On March 20, 1998, the Company, Lyondell and Occidental Petroleum Corporation
("Occidental") announced the signing of a definitive agreement to expand
Equistar with the addition of the ethylene, propylene, ethylene oxide and
derivatives businesses of Occidental's chemical subsidiary. See Note 13 to the
Consolidated (Combined) Financial Statements.

The following information should be read in conjunction with the Company's
Consolidated (Combined) Financial Statements and Notes thereto. In connection
with the forward-looking statements that appear in the following information,
the Cautionary Statements referred to in "Disclosure Concerning Forward-Looking
Statements" should be reviewed carefully.

Historical Cyclicality of Components 
of the Company's Operations

The markets for ethylene and polyethylene in which the Company participates
through its interest in Equistar are highly cyclical. The global markets for
titanium dioxide ("TiO2") and acetyls are also cyclical, although to a lesser
degree. In contrast, the Company believes that, over a business cycle, the
markets for specialty chemicals are generally more stable in terms of industry
demand, selling prices and operating margins.

In the United States, demand for ethylene and its primary derivative,
polyethylene, has historically fluctuated from year to year. Demand for ethylene
and polyethylene, respectively, has increased at average annual rates of
approximately 4.7% and 3.6% over the last five years and approximately 2.4% and
5.3% over the last ten years. The industry is particularly sensitive to capacity
additions, including capacity to manufacture ethylene, polyethylene's principal
raw material. Polyethylene producers have historically experienced alternating
periods of inadequate ethylene and/or polyethylene capacity, resulting in
increased selling prices and operating margins, followed by periods of large
capacity additions, resulting in declining capacity utilization rates, selling
prices and operating margins. The cyclicality of ethylene and polyethylene
profitability is further influenced by fluctuations in the price of feedstocks
for ethylene, which include natural gas and natural gas liquids, and which
generally follow price trends for crude oil. Recently, a heightened interest in
forming partnerships between companies for existing and new capacity is evident
in the industry. These partnerships expect to capitalize on the scale of
combined production facilities and the opportunities for cost synergies.

TiO2 is considered a "quality of life" performance chemical, the demand for
which is influenced by changes in the gross domestic product of various regions
of the world. The worldwide TiO2 industry has experienced cyclical demand,
supply and pricing, although to a lesser degree than the ethylene and
polyethylene industry. Demand for TiO2 has historically fluctuated from year to
year, although it has increased at average annual rates of 3.3% over the last
five years, and rates have varied among the regional marketplaces in the world.
The industry is also sensitive to changes in its customers' marketplaces, which
are primarily the paint and coatings, plastics and paper industries. In recent
history, consolidations and nega-


                                       20








<PAGE>

<PAGE>


                            Millennium Chemicals Inc.
                                  ------------
                      Management's Discussion and Analysis

                                      [GRAPH]

tive business conditions within certain of those industries have put pressure on
TiO2 prices as companies compete to keep volumes placed. In addition, TiO2 is
manufactured using two different technologies: the environmentally preferred
chloride process and the sulfate process.The cost structure of these processes
can differ significantly, with the sulfate process generally carrying a higher
cost to produce. In periods of declining selling prices, the profitability of
sulfate-process production is generally the first to be negatively affected.

Results for 1997 and Outlook for 1998

The Company had operating income of $449 million for the year ended December 31,
1997, an increase of $166 million (59%) from 1996. Net sales for 1997 of $3.048
billion were relatively flat compared to 1996. These results include the results
of operations for the polyethylene, alcohol and related products businesses
through November 30, 1997, at which time the Company contributed these
businesses to Equistar. During 1997, the Company incurred one-time
reorganization and other costs related to the formation of Equistar of $47
million ($37 million post-tax), which was principally offset by a one-time gain
related to an insurance settlement of $46 million ($28 million post-tax). During
1996, the Company recorded non-recurring charges of $75 million ($48 million
after tax) to reduce the carrying value and provide for closure costs of certain
TiO2 sulfate-process production facilities. Excluding these non-recurring
items, the Company's operating income increased $92 million (26%) from the prior
year. This increase is due primarily to higher average selling prices for
polyethylene and acetyls, the prices of which had dropped dramatically during
1996, combined with lower feedstock costs during 1997. While the pricing trends
for TiO2 improved during 1997, reversing the downward slide of prices which
began in late 1995, the average selling price for the whole of 1997 was below
that of 1996. Accordingly, 1997 operating income for this segment was below
1996 levels.

Income from continuing operations for 1997 of $185 million increased $44 million
(31%), compared to 1996 income from continuing operations. 1996 includes a
one-time after-tax gain from the sale by the Company of a 73.6% interest in
Suburban Propane Partners, L.P. ("Suburban Propane") of $86 million. On a pro
forma basis, income from continuing operations, excluding this gain and charges
related to the sulfate-process TiO2 operations in 1996 and excluding the
reorganization costs and gain from an insurance settlement in 1997, would have
been $91 million (88%) higher than 1996.

Titanium dioxide and related products: Titanium dioxide and related products
operating income increased to $60 million from $7 million in 1996. Operating
income in 1996 included $75 million of non-recurring charges related to the
closure of certain sulfate-process production facilities in response to
deteriorating market conditions during that period. Excluding these charges,
operating income for the year decreased 27% from 1996. Net sales for 1997
decreased 3% to $843 million, compared to $868 million for 1996.

Strong demand from the spring paint and coating season, the rationalization of
some industry capacity and other market factors steadied the marketplace during
the year. Overall sales volumes reached record levels in 1997, 4% higher than
1996, despite the loss of some volume from the reduction of sulfate-process
production during the year.

Pricing trends, which started downward in 1995 and continued to fall through
1996, reversed direction in March 1997 and rose through the balance of 1997.
This trend is expected to continue in 1998 as global price increase
announcements are expected to be supported by strong demand and tight supply.
While the average TiO2 selling price for 1997 was 7% lower than the prior year,
the fourth quarter's average price was 5% higher than in the third quarter and
4% above last year's comparable quarter. The


                                       21









<PAGE>

<PAGE>

                            Millennium Chemicals Inc.
                                  ------------
                      Management's Discussion and Analysis


fourth quarter price gains by region were 3% in the Americas, 8% in Europe and
nearly 10% in Asia/Pacific, where the previous price declines were the most
dramatic.

The lower average prices, combined with unfavorable foreign currency
fluctuations in Europe and Australia, adversely impacted 1997 profitability.
These effects were largely, but not fully, offset by lower production costs and
higher production output as a result of cost-control programs put in place early
this year to reduce annual production costs by $100 million from 1996 levels by
1999.

The TiO2 plants produced at approximately 97% of capacity during 1997, compared
to 88% during 1996. This added production not only reduced overall unit costs,
but was necessary to meet growing demand during the year. By the end of 1997,
inventories had dropped to record-low levels. A $120 million capital project to
expand capacity at the Stallingborough, United Kingdom, plant by 41,000 metric
tons per annum ("tpa") is progressing, with completion expected by the end of
1998 and production ramping up in early 1999. On December 31, 1997, the Company
acquired Rhone-Poulenc's TiO2 and related intermediate and specialty chemicals
operations in France, adding 138,000 tpa of TiO2 capacity and intermediate and
specialty chemical capacity to serve the growing demand in Europe.

The outlook for 1998 includes a continuation of the improving pricing trend
worldwide, supported by continued growth in demand. Combined with progress in
realizing the benefits of cost initiatives, profitability should continue to
improve in this segment.

Acetyls: Net sales of acetyls increased $31 million (13%) to $271 million in
1997, and operating income more than tripled to $39 million. The increase in
operating income primarily related to increased selling prices in all three of
its product lines over depressed 1996 levels. Average selling prices for 1997
were 10%, 3% and 28% higher than 1996 for vinyl acetate monomer ("VAM"), acetic
acid and methanol, respectively. In addition, the mechanical difficulties
experienced in the 1996 conversion of the syngas unit to natural gas feedstock
were resolved early in 1997, significantly improving production output and
reducing production costs during the year.

Demand for VAM in 1997 was steady, with volumes 1% above 1996. A mid-year price
increase and new industry capacity coming on-stream were absorbed by higher
demand. Weakening Asian markets had a negative impact in the fourth quarter,
with prices falling 4% from the previous quarter. Continued reduced demand from
these markets during 1998 would put further pressure on prices. The outlook for
1998 profitability anticipates such price declines, offset somewhat by lower
feedstock costs.

Acetic acid sales volumes were 17% below prior year, primarily as a result of a
planned customer outage during 1997. Volumes are expected to return to more
normal levels in 1998. Prices, which increased earlier in the year, dropped 2%
in the fourth quarter as formula-driven prices were impacted by falling
feedstock costs. During 1998, commercialization of proprietary low-water
technology, if proven successful, is expected to increase capacity by 11% and
reduce per unit operating costs for acetic acid.

Methanol sales volumes for 1997 were 57% higher than the prior year, with
industry outages during the year keeping supplies tight. Prices, which were up
17% in the fourth quarter over 1996, and equal to the third quarter, fell
sharply in early 1998.

Lower feedstock costs and improved production efficiency should mitigate the
negative impact of declining prices in the acetyls businesses in 1998.

Specialty chemicals: Another record year was completed by Millennium Specialty
Chemicals, with operating income of $42 million increas-

                                    [GRAPH]

                                       22







<PAGE>

<PAGE>


                            Millennium Chemicals Inc.
                                  ------------
                      Management's Discussion and Analysis

                                    [GRAPH]

ing $6 million (17%) from 1996. Net sales also increased $21 million (17%) to
$148 million. A 6% increase in sales volume for fragrance chemicals was
principally responsible for the increased profitability. The cost of crude
sulfate turpentine ("CST"), a principal raw material for these chemicals,
increased an average of 25% over 1996 levels. These higher costs have thus far
been offset by strong demand for these products together with tight supplies,
keeping prices at premium levels.

Millennium Specialty Chemicals expects to spend up to $27 million in 1998 on
cost-reduction projects and to further expand production capacity for its
high-demand, value-added fragrance chemical products.

The outlook for fragrance and flavor chemicals, while good, is expected to
include some downward pressure on prices as new competitors enter these markets.

Polyethylene, alcohol and related products: Net sales of polyethylene, alcohol
and related products (which includes sales from these businesses for the eleven
months ended November 30, 1997, at which time they were contributed to Equistar)
were $1.786 billion for 1997, a decrease of $19 million (1%) from 1996 full-
year results.

Operating income increased $80 million (35%) to $308 million for 1997,
principally as a result of a 15% increase in average selling prices during the
1997 period coupled with lower feedstock costs, which declined from peak 1996
levels. During 1997, strong demand, both domestically and in the export markets,
coupled with tight supply resulted in prices rising through the third quarter.
Prices began to slowly weaken thereafter as expectations of new industry
capacity coming on-stream and normal seasonal slowdowns reduced demand and put
pressure on prices. Prices during the fourth quarter were down 5% from the third
quarter. Polyethylene unit volumes for the 1997 period were 2% higher than 1996.

Feedstock costs were on average 31% lower than last year's historical highs, as
warmer-than-normal winter weather reduced demand for natural gas and natural gas
liquids. These costs continued their decline late in the year as winter
temperatures remained above normal, and crude oil inventories began building due
to decreased demand from Asian markets. By year end, and into 1998, feedstock
costs continued below expectations, softening the impact of declining prices on
margins late in the year.

Continued downward pressure on ethylene and polyethylene prices is expected
during 1998, as is a return to more normal levels of feedstock costs.
Accordingly, the ethylene and polyethylene businesses are expected to generate
lower income in 1998. The Company, through its 43% interest in Equistar, will
be affected by any such downturn.

1996 Results Compared to 1995

The Company had operating income of $283 million for the year ended December 31,
1996, a decrease of $559 million (66%) from 1995, and net sales of $3.040
billion, a decrease of $760 million (20%). The Company recorded non-recurring
charges of $75 million ($48 million after tax) during 1996 to reduce the
carrying value of certain facilities employed in the sulfate-process
manufacturing of TiO2 and to provide for the cost associated with the closure of
certain of these facilities. In addition, as a result of the sale of a 73.6%
interest in Suburban Propane through an initial public offering in March 1996,
the Company's interest in the results of Suburban Propane has been reflected as
equity in earnings of Suburban Propane in the Consolidated (Combined) Financial
Statements of the Company since January 1, 1996. Suburban Propane contributed
$639 million to net sales and $53 million to operating income during 1995.
Exclu-ding Suburban Propane and the non-recurring charges referred to above, the
Company's net sales decreased $121 million (3.8%) and its operating income
decreased $431 million (55%)


                                       23








<PAGE>

<PAGE>

                            Millennium Chemicals Inc.
                                  ------------
                      Management's Discussion and Analysis


Rest of World
Asia/Pacific
Western Europe
North America
*December 31, 1997, including 
the Thann et Mulhouse acquisition


from the prior year. These decreases are primarily due to lower average selling
prices for polyethylene, acetyls and performance polymer product as they
declined from their 1995 peak levels and declining selling prices for TiO2 as a
result of high producer inventories, excess capacity and customer destocking.
Additionally, increasing costs for feedstocks for ethylene (polyethylene's
principal raw material) and higher costs for titanium ores during this period
further reduced operating income.

On a pro forma basis, basic earnings per share from continuing operations for
1996 would have been $2.26, based on 74,412,000 shares outstanding (as
calculated under the recently issued FAS 128 and which assumes the shares issued
to Hanson shareholders pursuant to the Demerger were outstanding for the entire
year). Such earnings per share include ($0.65) and $1.15 per share from the
after-tax impact of the non-recurring charges related to the sulfate-process
TiO2 operations and the gain on the sale of the 73.6% interest in Suburban
Propane, respectively.

Titanium dioxide and related products: Titanium dioxide and related products
operating income for 1996 decreased $170 million (96%) from $177 million in
1995. This reflects non-recurring charges of $75 million ($48 million after tax)
to reduce the carrying value of certain facilities employed in the
sulfate-process manufacturing of TiO2 and to provide for the cost associated
with the closure of certain of these facilities. Excluding these non-recurring
charges, operating income for the year decreased $95 million (54%) compared to
1995. Net sales for 1996 increased 2% to $868 million, compared to $848 million
for 1995.

During 1996, the TiO2 industry experienced severe price competition, with global
prices continuing on a downward trend which began in late 1995. The price
erosion reflected a confluence of market factors, including customer destocking,
consolidations in the paint and coatings industry, a weak paper industry,
increased TiO2 capacity and a weak spring paint and coatings season. These
conditions caused global average TiO2 selling prices in United States dollar
terms to be 6% lower during 1996, compared to 1995, as producers attempted to
maintain volume and market share. These declines were worldwide, with yearly
average prices down 3% in the Americas, 8% in Europe and 13% in the Asia/Pacific
region compared to yearly average prices in these regions in 1995. The worldwide
average TiO2 selling price in United States dollar terms was 14% lower in
December 1996 than December 1995, with local prices in Europe and the
Asia/Pacific region declining 25% and 29%, respectively, during the same period.

These conditions had severe effects on TiO2 sulfate-process products, which have
higher production costs and lower selling prices than chloride-process
products. In response to these deteriorating market conditions, the 10,000 tpa
sulfate-process plant in Stallingborough, United Kingdom, was closed, and
production capacity of the 66,000 tpa sulfate-process plant in Baltimore,
Maryland, was scaled back by approximately one-third. In addition, completion of
the expansion of the chloride-process facility in the United Kingdom was delayed
until the end of 1998, and plans for the 111,000 tpa expansion in Australia
postponed until market conditions and trends improve. Finally, cost containment
measures and reengineering efforts for certain processes are being implemented
in order to reduce overall operating costs by $100 million from 1996 levels by
1999.

Also contributing to the decline in operating income were higher fixed costs,
resulting from an increase in chloride-process capacity that was phased in,
thereby reducing operating rates, and higher variable costs due to increased
costs of titanium ore feedstocks, coke and utilities.

                                     [GRAPH]

                                       24








<PAGE>

<PAGE>

                            Millennium Chemicals Inc.
                                  ------------
                      Management's Discussion and Analysis



A $75 million capital investment program to increase Millennium Inorganic
Chemicals' chloride-process capacity by 52,000 tpa was completed during 1996. A
$50 million two-year program to improve environmental performance at its
Ashtabula, Ohio, facilities is underway, with final completion scheduled for
1998. In addition, plans are underway to expand chloride-process capacity at the
Stallingborough plant by 41,000 tpa in 1998 at a cost of approximately $120
million to meet projected long-term growth in demand in the European markets.

The TiO2 plants operated at approximately 88% of capacity during 1996, compared
to approximately 96% during the prior year. Decreased operating rates reflected
market conditions and increased capacity for chloride-process manufacturing.
Sales volume for 1996 increased 8%, largely due to stronger demand in the
coatings and plastics markets, with shipments to the sluggish paper market
continuing to lag.

Acetyls: Net sales of acetyls decreased $88 million (27%) to $240 million in
1996, while operating income decreased $84 million (87%) to $12 million. The
decline in operating income resulted from decreased average selling prices and
lower volumes. This was primarily true for methanol, which experienced
historically high selling prices during 1995 due to strong demand from
reformulated gasoline producers to meet environmental requirements. As some of
these requirements were subsequently relaxed and additional capacity became
available, methanol prices fell 32%. VAM also experienced a 20% decline in
average selling prices during 1996 as export markets were affected by oversupply
and weakened demand. In addition, an outage to convert the syngas unit to
natural gas caused production limitations, which resulted in a decline in sales
volumes in both methanol and acetic acid in 1996 compared to 1995. Mechanical
difficulties associated with the resumption of acetyls production, as well as
certain suppliers' failure to perform at expected levels, resulted in curtailed
production and increased costs during the first quarter of 1997.

Specialty chemicals: Specialty chemicals (which now includes the Colors & Silica
business previously reported as part of the titanium dioxide and related
products segment) continued its growth trend with its seventh consecutive record
year of operating income of $36 million for 1996, an increase of $5 million
(16%) compared to 1995. Net sales increased $12 million (10%) to $127 million.
This trend reflected a 2.2% increase in unit sales volume for fragrance products
over 1995 as well as a shift toward higher value-added products. This growth was
accomplished in spite of worldwide demand for fragrance chemicals being flat in
1996, and more than offset significant increases in the cost of CST, the
principal raw material for these chemicals, which increased 49% on a unit basis
compared to 1995. Millennium Specialty Chemicals' continued emphasis on
higher-margin intermediate and upgraded products also contributed to 1996's
operating margin per unit increasing 7.6% over 1995.

During 1996, Millennium Specialty Chemicals' expansion continued. Completion of
the final phase of the program, in the fall of 1997, increased capacity of
linalool and geraniol, two major fragrance chemicals, by 80% over 1995 levels.

Polyethylene, alcohol and related products: Net sales of polyethylene, alcohol
and related products were $1.805 billion for 1996, a decrease of $65 million
(3%). Operating income decreased $257 million (53%) to $228 million, principally
as a result of a 15% decline in average selling prices for polyethylene products
coupled with higher feedstock costs. The lower prices reflected competitive
pressure arising from excess industry capacity and a destocking of customer
inventories during the first half of 1996. In 1995, industry ethylene
inventories were extremely tight due to unexpected industry outages, causing
ethylene and, conse-


                                       25









<PAGE>

<PAGE>


                            Millennium Chemicals Inc.
                                  ------------
                      Management's Discussion and Analysis



quently, polyethylene prices to rise dramatically; this situation corrected
itself toward the end of 1995. During 1996, average selling prices increased
during the second and third quarters on increased domestic demand, strong
exports and higher natural gas feedstock costs, but dropped during the last
quarter and early in 1997 as customers worked off polyethylene inventories in
anticipation of future price decreases and reduced seasonal demand. Polyethylene
unit volumes for 1996 increased 7.2% over 1995 on increased demand.

Average unit costs for polyethylene increased 9.5% over 1995 due to increased
feedstock costs for ethylene. These costs rose dramatically as a result of the
colder-than-normal winter temperatures experienced in late 1995 and early 1996,
which increased the demand for natural gas and the cost of natural gas liquids.
Millennium Petrochemicals' ethylene feedstock and natural gas costs remained at
high levels throughout 1996 and a significant portion of the first quarter of
1997. Feedstock costs rose 45% during the fourth quarter of 1996 alone.

Effect of Inflation

Because of the relatively low level of inflation experienced in the United
States, inflation did not have a material impact on the Company's combined
results of operations for 1997, 1996 or 1995.

Foreign Currency Matters

The functional currency of each of the Company's non-United States operations
(principally the operations of Millennium Inorganic Chemicals in the United
Kingdom, France and Australia) is the local currency. The impact of currency
translation in combining the results of operations and financial position of
such operations has not been material to the combined financial position of the
Company. However, the Company generates revenue from export sales and revenue
from operations conducted outside the United States that may be denominated in
currencies other than the relevant functional currency. During 1997, the Company
hedged certain revenues and costs to minimize the impact of changes in the
exchange rates of those currencies compared to the functional currencies. The
Company does not use derivative financial instruments for trading or speculative
purposes. Foreign currency losses (gains) aggregated $4 million, $7 million and
($13) million in 1997, 1996 and 1995, respectively.

Year 2000

The Company is currently developing a formal plan to address the impact of Year
2000 on its financial and business systems, and it intends to adopt and
implement such a plan during 1998. This plan will include a companywide
implementation of an SAP-based business solution that is Year 2000 compliant.
It is anticipated that the Year 2000 issues will be addressed on a timely basis
and at a cost that will not be material to the Company's operations or financial
condition. However, in the event that the Year 2000 issues of the Company and/or
third parties with whom the Company transacts business are not addressed on a
timely basis, it is possible that such issues could have an adverse impact on
the Company's operations and/or financial condition.

Liquidity and Capital Resources

Through September 30, 1996, the Company financed its operations and capital and
other expenditures from a combination of cash generated from operations,
external borrowings and loans, and invested capital provided by Hanson or its
United States affiliates. Since its demerger from Hanson, the Company has met
all of its cash requirements through internally generated funds and external
borrowings. The Company's ability to generate cash from operations and the
servicing and repayment of debt depends upon numerous business factors, some of
which are outside the control of the Company, including industry cyclicality
(resulting


                                       26








<PAGE>

<PAGE>



                            Millennium Chemicals Inc.
                                  ------------
                      Management's Discussion and Analysis

                                    [GRAPH]

from industrywide capacity additions, changes in general economic conditions and
other conditions) and price volatility of certain raw materials.

Net cash provided by operating activities was $383 million, $372 million and
$795 million in 1997, 1996 and 1995, respectively. The decline since 1995
principally resulted from decreased income from the polyethylene businesses,
where lower average selling prices and higher feedstock costs were experienced
during 1996 as discussed above. During 1997, cash generated from increased
operating income was used primarily for working capital purposes, keeping 1997
levels on par with 1996.

Net cash provided by investing activities was $431 million and $458 million in
1997 and 1996, respectively, compared to net cash used of $246 million in 1995.
During 1997 and 1996, two significant transactions occurred: the Company's
contribution of the polyethylene, alcohol and related businesses to Equistar and
the sale of a 73.6% interest in Suburban Propane, respectively. These
transactions provided cash of $775 million and $733 million for 1997 and 1996,
respectively. In addition, the Company used $152 million for capital
expenditures during 1997, compared to $285 million and $276 million in 1996 and
1995, respectively. On December 31, 1997, the Company acquired the TiO2 and
certain specialty and intermediate chemical operations of Rhone-Poulenc for $185
million, including assumed debt. The Company expects capital expenditures for
1998 to be approximately $200 million as a result of completing the TiO2
expansion in the United Kingdom, building a technical research center in the
United States for TiO2, implementing SAP-based business solutions companywide,
and continuing expansion and cost-reduction projects at Millennium Specialty
Chemicals. The Company continuously evaluates its level of capital expenditures
in light of current and expected market conditions, other opportunities to
create value, and exceptional requirements which may arise. Accordingly, there
can be no assurance as to the actual level of capital expenditures in 1998.

Net cash used in financing activities was $1.155 billion, $834 million and $503
million in 1997, 1996 and 1995, respectively. The increase from year to year
principally related to changes in the level of funding and other transactions
between the Company and its affiliates prior to the Demerger and from external
sources since October 1, 1996. At December 31, 1997, the Company had net debt of
$1.283 billion, or $773 million less than December 31, 1996.

The principal reduction in net debt during 1997 was funded primarily by
operations and $775 million of proceeds received in connection with the
formation of Equistar. As a result, the Company permanently reduced its
availability under its credit facility by $750 million upon the formation of
Equistar. The Company retained $250 million from existing receivables related to
the businesses contributed to Equistar, of which $25 million was collected in
December 1997, and the balance is expected to be collected early in 1998. The
ratio of net-debt-to-total-capital at December 31, 1997, was 47%. Including the
Company's proportional share of Equistar's debt, the ratio of
net-debt-to-total-capital at December 31, 1997, would have been 55%. The Company
guarantees certain debt obligations of Equistar up to $750 million. At December
31, 1997, the Company had approximately $358 million of unused availability
under short-term lines of credit and its credit facility. The Company believes
that, during 1998, cash provided by operations, expected distributions from
Equistar and availability under existing borrowing facilities will provide
adequate support for all of the Company's cash needs for working capital and
capital expenditures for its existing businesses and dividends. In addition, it
expects to further reduce its debt availability under its credit facility by
$250 million.



                                       27







<PAGE>

<PAGE>


                           Millennium Chemicals Inc.
                               -----------------
                       Report of Independent Accountants

To the Board of Directors and Shareholders of Millennium Chemicals Inc.

We have audited the accompanying consolidated balance sheets of Millennium
Chemicals Inc. (the "Company") and its subsidiaries as of December 31, 1997 and
1996, and the related consolidated (combined) statements of operations, of cash
flows and of changes in shareholders' equity/invested capital for each of the
three years in the period ended December 31, 1997. These financial statements
are the responsibility of the Company's management. Our responsibility is to
express an opinion on these financial statements based on our audits. We did not
audit the financial statements of Cornerstone-Spectrum Inc. (formerly HMB
Holdings Inc.) ("Cornerstone") which statements reflect (loss) income from
discontinued operations of ($2,877) million, and $15 million for the fiscal
years ended September 30, 1996 and 1995, respectively. Those statements were
audited by other auditors whose reports thereon have been furnished to us, and
our opinion expressed herein, insofar as it relates to the amounts included for
Cornerstone, is based solely on the reports of the other auditors.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits and the reports of other auditors provide a
reasonable basis for our opinion.

In our opinion, based on our audits and the reports of other auditors, the
consolidated (combined) financial statements present fairly, in all material
respects, the financial position of the Company and its subsidiaries at December
31, 1997 and 1996, and the results of their operations and their cash flows for
each of the three years in the period ended December 31, 1997, in conformity
with generally accepted accounting principles.


PRICE WATERHOUSE LLP
PRICE WATERHOUSE LLP
Morristown, New Jersey
January 23, 1998, except as to Note 13,
which is as of March 20, 1998.


                                28








<PAGE>

<PAGE>


                           Millennium Chemicals Inc.
                                -----------------
                          Consolidated Balance Sheets

                        (in millions, except share data)

<TABLE>
<CAPTION>
========================================================================================================
Year Ended December 31                                                                 1997        1996
- --------------------------------------------------------------------------------------------------------
<S>                                                                                 <C>         <C>    
Assets
Current assets
    Cash and cash equivalents                                                       $    64     $   408
    Trade receivables, net                                                              369         464
    Inventories                                                                         273         515
    Other current assets                                                                106          83
                                                                                    -------     -------
        Total current assets                                                            812       1,470
Property, plant and equipment, net                                                      851       2,031
Investment in Equistar                                                                1,934          --
Other assets                                                                            261         334
Goodwill                                                                                468       1,766
                                                                                    -------     -------
        Total assets                                                                $ 4,326     $ 5,601
                                                                                    =======     =======
Liabilities and shareholders' equity
Current liabilities
    Notes payable                                                                   $    --     $    98
    Current maturities of long-term debt                                                 20           6
    Trade accounts payable                                                               86         160
    Income taxes payable                                                                 12          33
    Accrued expenses and other liabilities                                              323         470
                                                                                    -------     -------
       Total current liabilities                                                        441         767
Long-term debt                                                                        1,327       2,360
Deferred income taxes                                                                   280          78
Other liabilities                                                                       814       1,078
                                                                                    -------     -------
        Total liabilities                                                             2,862       4,283
                                                                                    -------     -------
Commitments and contingencies (Note 11)
Shareholders' equity
    Preferred stock (par value $.01 per share, authorized 25,000,000 shares,
        none issued and outstanding)                                                     --          --
    Common stock (par value $.01 per share, authorized 225,000,000 shares;
        issued and outstanding 77,276,942 shares in 1997 and 77,324,605 in 1996)          1           1
    Paid in capital                                                                   1,334       1,319
    Retained earnings                                                                   177          38
    Unearned restricted shares                                                          (42)        (50)
    Cumulative translation adjustment                                                    (6)         10
                                                                                    -------     -------
        Total shareholders' equity                                                    1,464       1,318
                                                                                    -------     -------
        Total liabilities and shareholders' equity                                  $ 4,326     $ 5,601
                                                                                    =======     =======
</TABLE>

See Notes to Consolidated (Combined) Financial Statements


                                    29








<PAGE>

<PAGE>


                           Millennium Chemicals Inc.
                                ----------------
                Consolidated (Combined) Statements of Operations

                        (in millions except share data)

<TABLE>
<CAPTION>
========================================================================================================
Year Ended December 31                                                    1997        1996         1995
- --------------------------------------------------------------------------------------------------------
<S>                                                                    <C>         <C>          <C>    
Net sales                                                              $ 3,048     $ 3,040      $ 3,800
Operating costs and expenses
    Cost of products sold                                                2,180       2,264        2,458
    Depreciation and amortization                                          203         201          241
    Selling, development and administrative expense                        216         217          259
    Impairment of assets and related closure costs                          --          75           --
                                                                       -------      ------      -------
        Operating income                                                   449         283          842
Interest expense (primarily to a related party in 1996 and 1995)          (131)       (214)        (240)
Interest income                                                             10          37           25
Gain on sale of Suburban Propane                                            --         210           --
Equity in earnings of Equistar                                              18          --           -- 
Other (expense) income, net                                                 (4)         14          (73)
                                                                       -------      ------      -------
Income from continuing operations before provision for income taxes        342         330          554
Provision for income taxes                                                (157)       (189)        (223)
                                                                       -------      ------      -------
Income from continuing operations                                          185         141          331
(Loss) income from discontinued operations (net of income taxes
    of ($1,167) and $22 in 1996 and 1995, respectively)                     --      (2,842)          18
                                                                       -------      ------      -------
        Net income (loss)                                              $   185     $(2,701)     $   349
                                                                       =======     =======      =======
Income per share from continuing operations                            $  2.48     $  1.89      $  4.45
(Loss) income per share from discontinued operations                         0      (38.19)         .24
                                                                       -------      ------      -------
Net income (loss) per share - basic                                    $  2.48     $(36.30)     $  4.69
                                                                       =======     =======      =======
Net income (loss) per share - diluted                                  $  2.47     $(36.30)     $  4.69
                                                                       =======     =======      =======
Pro forma income from continuing operations (unaudited)                            $   168
                                                                                   =======
Pro forma income from continuing operations per share (unaudited)                  $  2.26
                                                                                   =======
</TABLE>

See Notes to Consolidated (Combined) Financial Statements


                                    30








<PAGE>

<PAGE>



                           Millennium Chemicals Inc. 
                Consolidated (Combined) Statements of Cash Flows
                                 (in millions)
<TABLE>
<CAPTION>
===================================================================================================================
Year Ended December 31                                                      1997             1996             1995
- -------------------------------------------------------------------------------------------------------------------
<S>                                                                      <C>               <C>               <C>
Cash flows from operating activities
Income from continuing operations                                        $   185          $   141          $   331
    Adjustments to reconcile net income to net
    cash provided by operating activities
        Depreciation and amortization                                        203              201              241
        Impairment of assets and related closure costs                        --               75               -- 
        Provision for deferred income taxes                                  122               86               35
        Restricted stock amortization                                         23               --               --
        Equity earnings                                                      (13)              --               --
        Gain on sale of business                                              --             (210)              -- 
        Unrealized translation gain                                           --              (21)              --

            Changes in assets and liabilities (net of
            acquisition and dispositions)
                Decrease in trade receivables                                141               38               13
                Decrease (increase) in inventories                            14                5              (92)
                (Increase) decrease in other current assets                  (40)             126                8
                Decrease (increase) in investments and other assets           58              (65)             173
                (Decrease) increase in trade accounts payable                (97)              13               32
                (Decrease) increase in accrued expenses and
                    other liabilities and income taxes payable              (126)               7               86
                Decrease in other liabilities                                (87)             (24)             (32)
                                                                         -------          -------          -------
                Cash provided by operating activities                        383              372              795
                                                                         
Cash flows from investing activities
Capital expenditures                                                        (152)            (285)            (276)
Acquisition of Thann et Mulhouse                                            (169)              --               --
Proceeds from Equistar                                                       750               --               --
Proceeds from sale of Suburban Propane                                        --              733               --
Proceeds from sale of fixed assets                                             2               10               30
                                                                         -------          -------          -------
        Cash provided by (used in) investing activities                      431              458             (246)

Cash flows from financing activities

Dividend to parent                                                            --               --           (1,617)
Dividend to shareholders                                                     (46)              --               --
Distribution from Equistar                                                    43               --               --
Contribution to Suburban Propane                                             (22)              --               --
Net transactions with affiliates                                              --               --            1,212
Net contribution from Hanson plc and Prior Affiliates                         --              167               --
Proceeds from long-term debt                                                 185            2,335               40
Repayment of long-term debt                                               (1,217)          (3,321)              (4)
Decrease in notes payable                                                    (98)             (15)            (134)
                                                                         -------          -------          -------
        Cash (used in) financing activities                               (1,155)            (834)            (503)
Effect of exchange rate changes on cash                                       (3)              --               (1)
                                                                         -------          -------          -------
        (Decrease) increase in cash and cash equivalents                    (344)              (4)              45
        Cash and cash equivalents at beginning of period                     408              412              367
                                                                         -------          -------          -------
        Cash and cash equivalents at end of period                       $    64          $   408          $   412
                                                                         =======          =======          =======
</TABLE>

See Notes to Consolidated (Combined) Financial Statements



                                        31







<PAGE>

<PAGE>

                           Millennium Chemicals Inc.
     Consolidated (Combined) Statements of Changes in Shareholders' Equity
                                 (in millions)
<TABLE>
<CAPTION>

===================================================================================================================================
                                                                                        Unearned   Cumulative
                                             Common Stock       Paid In     Retained   Restricte   Translation  Invested
                                           Shares    Amount     Capital     Earnings      Shares    Adjustmen    Capital     Total
- -----------------------------------------------------------------------------------------------------------------------------------
<S>                                         <C>        <C>        <C>        <C>         <C>         <C>            <C>         <C>
Balance at December 31, 1994                   --   $    --     $    --     $    --     $ --           $ --     $ 4,858    $ 4,858
Net income                                                                                                          349        349
Dividend to parent                                                                                               (1,617)    (1,617)
Net transactions with affiliates                                                                                  1,212      1,212
Translation adjustment                                                                                               (1)        (1)
                                          -------   -------     -------     -------     -----         -----      -------    -------
Balance at December 31, 1995                   --        --          --          --       --             --       4,801      4,801
Net income (loss)                                                                38                              (2,739)    (2,701)
Amortization and adjustment
    of unearned restricted shares                                   (13)                  15                                     2
Issuance of stock                              74         1       1,267                                          (1,268)        --
Issuance of restricted shares                   3                    65                  (65)                                   --
Net capital contribution
    from Demerger                                                                                                   443        443
Net transactions with affiliates                                                                                 (1,237)    (1,237)
Translation adjustment                                                                                   10          --         10
                                          -------   -------     -------     --------    -----          -----      -------   -------
Balance at December 31, 1996                   77         1       1,319          38      (50)            10          --      1,318
Net income                                                                      185                                            185
Dividend                                                                        (46)                                           (46)
Amortization and adjustment
  of unearned restricted shares                (1)                   15                    8                                    23

Translation adjustment                                                                                  (16)                   (16)
                                          -------   --------    -------     --------    -----          -----      -------   -------

Balance at December 31, 1997                   76   $     1     $ 1,334     $   177     $(42)          $ (6)      $   --   $ 1,464
                                          =======   ========    =======     ========    =====          =====      =======  ========
</TABLE>


                                             32








<PAGE>

<PAGE>


                           Millennium Chemicals Inc.
             Notes to Consolidated (Combined) Financial Statements
                    (in millions unless otherwise indicated)

Note 1--Basis of Presentation and Description of Company

Millennium Chemicals Inc. (the "Company") is a major international chemicals
company, with leading market positions in a broad range of commodity,
industrial, performance and specialty chemicals, operating through its
wholly-owned subsidiaries: Millennium Petrochemicals Inc., Millennium Inorganic
Chemicals Inc. (and its non-United States affiliates) and Millennium Specialty
Chemicals Inc. and, beginning December 1, 1997, through its 43% interest in
Equistar Chemicals, LP ("Equistar"), a joint venture formed by the Company and
Lyondell Petrochemical Company ("Lyondell") to jointly own and operate the
olefins and polymers businesses of the Company and Lyondell (See Note 2).

The Company was incorporated on April 18, 1996, and has been publicly-owned
since October 1, 1996, when Hanson plc ("Hanson") transferred its chemical
operations to the Company and, in consideration, all of the then outstanding
shares of the Company's common stock were distributed pro rata to Hanson's
shareholders (the "Demerger"). For periods prior to the Demerger, the financial
statements present, on a combined basis, the historical net assets and results
of operations of Hanson's chemical operations. Consequently, the Company's
results of operations and cash flows prior to October 1, 1996, may not be
indicative of what would have been reported if the Company had been a separate
entity. For periods subsequent to the Demerger, the financial statements are
presented on a consolidated basis. All significant intercompany accounts and
transactions have been eliminated.

The consolidated (combined) financial statements of operations and cash flows
for the year ended December 31, 1996, also include the combined operations of
certain non-chemical businesses ("Discontinued Businesses") which were owned by
subsidiaries of Hanson that became subsidiaries of the Company upon the
Demerger. The Company sold the Discontinued Businesses to Hanson on October 6,
1996. Since these operations were not a part of the Company upon completion of
the Demerger transactions, their historical results of operations have been
presented as discontinued operations.

Prior to the Demerger, the Company provided certain corporate, general and
administrative services to certain other indirect wholly-owned subsidiaries of
Hanson ("Prior Affiliates"), including legal, finance, tax, risk management and
employee benefit services. Charges for these services, which were allocated to
the Prior Affiliates based on the respective revenues of the Company and the
Prior Affiliates, reduced the Company's selling and administrative expense by
$18 and $26 for the years ended December 31, 1996 and 1995, respectively. The
Company's management believes such method of allocation was reasonable. In
addition, prior to the Demerger, a subsidiary of the Company controlled, on a
centralized basis, all cash receipts and disbursements received or made by such
affiliates.

Note 2--Acquisition and Dispositions

On December 31, 1997, the Company completed the purchase of the shares of
Rhone-Poulenc Chimie S.A.'s Thann et Mulhouse titanium dioxide ("TiO2") and
specialty and intermediate chemicals subsidiary for $185, including assumed
debt. The purchase price was allocated to the net assets acquired, principally
property, plant and equipment and working capital based on their fair value.

On December 1, 1997, the Company and Lyondell completed the formation of
Equistar, a joint venture partnership to own and operate the olefins and
polymers and ethyl alcohol businesses of the Company and Lyondell. The
Partnership is the largest producer of ethylene and polyethylene in North
America. Equistar, 57% owned by Lyondell and 43% by the Company, is managed by a
Partnership Governance Committee consisting of three representatives of each of
Lyondell and the Company. Approval of Equistar's strategic plans and other major
decisions requires the consent of representatives of both partners. All
decisions of Equistar's Governance Committee that do not require unanimity
between Lyondell and the Company may be made by Lyondell's representatives
alone.

The Company contributed to Equistar substantially all of the net assets of its
polyethylene, performance polymers and ethyl alcohol businesses. The Company
retained $250 from the proceeds of accounts receivable collections and
substantially all the accounts payable and accrued expenses of its contributed
businesses existing on December 1, 1997, and received proceeds of $750 from
borrowings under a new credit facility entered into by Equistar. The Company
used the $750 which it received to repay debt.


                                       33







<PAGE>

<PAGE>

Lyondell contributed substantially all of the assets of its petrochemicals
businesses, except for substantially all the accounts payable and accrued
expenses which it retained. In addition, Equistar assumed senior debt
obligations of Lyondell aggregating $745 and received a note payable by Lyondell
to the partnership in the amount of $345.

As of December 1, 1997, the Company accounted for its interest in Equistar using
the equity method. The investment in Equistar at December 1, 1997, represented
the carrying value of the Company's net assets which it contributed to the
venture and approximated the fair market value of a 43% interest in Equistar
based upon independent valuation. The difference between the carrying value of
the Company's investment and its underlying equity in the net assets of
Equistar is $617, which is being amortized over 25 years.

During 1997, the Company incurred one-time costs of $47 (pre-tax) related to the
formation of Equistar, including $18 (the Company's 43% share) of costs incurred
by Equistar.

Because of the significance of the Company's interest in Equistar to its total
results of operations, the separate financial statements of Equistar since its
formation have been included in the Company's 1997 Annual Report filed on Form
10-K.

In March 1996, the Company sold a 73.6% interest in Suburban Propane, through an
initial public offering of 21,562,500 common units in a new master limited
partnership, Suburban Propane Partners, L.P., and received aggregate proceeds
from the sale of the common units and the issuance of notes of the operating
partnership, Suburban Propane, L.P., of approximately $831 resulting in a
pre-tax gain of $210. The Company retains a combined subordinated and general
partnership interest of 26.4% in Suburban Propane Partners, L.P. and Suburban
Propane, L.P. (collectively "Suburban Propane"), which is accounted for on an
equity basis effective January 1, 1996.

Note 3--Significant Accounting Policies

Use of Estimates: The preparation of financial statements in conformity with
generally accepted accounting principles requires management to make estimates
and assumptions that affect the reported amounts of assets and liabilities at
the date of the financial statements and the reported amounts of revenues and
expenses during the reporting period. Actual results could differ from those
estimates.

Cash Equivalents: Cash equivalents represent investments in short-term deposits
and commercial paper with banks which have original maturities of ninety days or
less. The equivalent of approximately $362 at December 31, 1996, was represented
by sterling-denominated deposits. In addition, investments and other assets
include approximately $83 and $112 in restricted cash at December 31, 1997 and
1996, respectively, which is on deposit primarily to satisfy insurance claims.

Inventories: Inventories are stated at the lower of cost or market value. For
certain United States operations, cost is determined under the last-in,
first-out (LIFO) method. The first-in, first-out (FIFO) method is used by all
other subsidiaries.

Property, Plant and Equipment: Property, plant and equipment is stated on the
basis of cost. Depreciation is provided by the straight-line method over the
estimated useful lives of the assets, generally 20-to 40-years for buildings and
5-to 25-years for machinery and equipment.

Goodwill: Goodwill represents the excess of the purchase price over the fair
value of assets allocated to acquired companies. Goodwill is being amortized
using the straight-line method over 40 years. Management periodically evaluates
goodwill for impairment based on the anticipated future cash flows attributable
to its operations. Such expected cash flows, on an undiscounted basis, are
compared to the carrying value of the tangible and intangible assets, and if
impairment is indicated, the carrying value of goodwill is adjusted. In the
opinion of management, no impairment of goodwill exists at December 31, 1997.

Environmental Liabilities and Expenditures: Accruals for environmental matters
are recorded in operating expenses when it is probable that a liability has been
incurred and the amount of the liability can be reasonably estimated. Accrued
liabilities are exclusive of claims against third parties (except where payment
has been received or the amount of liability or contribution by such other
parties, including insurance companies, has been agreed) and are not discounted.
In general, costs related to environmental remediation are charged to expense.
Environmental costs are capitalized if the costs increase the value of the
property and/or mitigate or prevent contamination from future operations.

Foreign Currency Translation: Assets and liabilities of the Company's foreign
operating subsidiaries are translated at the exchange rates in effect at the
balance sheet dates, while revenue, expenses and cash flows are translated at
average exchange rates for the reporting period.

Prior to the Demerger, certain of the Company's subsidiaries, whose holdings
principally consisted of sterling denominated cash deposits, were considered to
hedge a portion of Hanson's investments in the United States. The functional
currency of


                                        34








<PAGE>

<PAGE>

these subsidiaries was the local currency. After the Demerger, such deposits no
longer acted as a hedge; instead, the entities were primarily holding companies,
the assets of which were remittable to the Company. As such, the functional
currency of these subsidiaries was changed to the United States dollar. Gains
from the remeasurement of these deposits and other assets and liabilities into
United States dollars are included in Other expense, net and aggregated $34 for
the year ended December 31, 1996. In 1997, certain of the subsidiaries holding
these deposits were sold and proceeds of approximately $343 were used to reduce
the Company's debt.

Federal Income Taxes: Deferred tax assets and liabilities are computed based on
the difference between the financial statement and income tax basis of assets
and liabilities using the enacted marginal tax rate. Deferred income tax
expenses or credits are based on the changes in the asset and liability from
period to period.

Prior to the Demerger, the United States earnings of the Company were included
in the consolidated federal income tax return filed by Hanson's ultimate United
States parent, which is now a subsidiary of the Company. Pursuant to an informal
tax allocation agreement, the Company provided for income taxes as if it filed
separate income tax returns. Accordingly, the Company had not reflected in the
historical financial statements certain tax benefits arising out of the
consolidated tax group (including certain predecessor entities, the
"Consolidated Group") that became allocable to the Company once the Demerger was
completed. Upon the Demerger, such tax benefits have been included in deferred
taxes and were accounted for as a capital transaction.

Certain other operations of Hanson previously included in the Consolidated Group
upon completion of the Demerger no longer qualify as members of the Consolidated
Group. The Company and certain of its subsidiaries have entered into tax-sharing
and indemnification agreements with Hanson or its subsidiaries in which the
Company and/or its subsidiaries generally agreed to indemnify Hanson or its
subsidiaries for income tax liabilities attributable to periods when such other
operations were included in the consolidated tax returns of the Consolidated
Group.

Research and Development: The cost of research and development efforts is
expensed as incurred. Such costs aggregated $28, $39 and $42 for the years ended
December 31, 1997, 1996 and 1995, respectively.

Earnings Per Share: In February 1997, the Financial Accounting Standards Board
issued SFAS No 128, "Earnings Per Share," which specifies new standards designed
to improve the earnings per share ("EPS") information provided in financial
statements by simplifying the existing computational guidelines, revising the
disclosure requirement, and increasing the comparability of EPS data on an
international basis. The Company adopted these provisions for the year ended
December 31, 1997, and has restated per share disclosures for 1996 and 1995 in
accordance with its provisions.

The weighted-average number of common and common equivalent shares outstanding
used in computing EPS per share for 1997, 1996 and 1995 was as follows:

<TABLE>
<CAPTION>
================================================================================
                                          1997            1996         1995
- --------------------------------------------------------------------------------
<S>                                    <C>             <C>           <C>
Basic                                  74,484,247      74,412,283    74,412,283
Options                                    31,846              --            --
Restricted stock                          130,000              --            --
                                       ----------      ----------    ----------
Diluted                                74,646,093      74,412,283    74,412,283
                                       ==========      ==========    ==========

</TABLE>


Pro forma income from continuing operations for 1996 was calculated as if: (a)
the Demerger had been consummated at the beginning of the period; (b) the
changes in the Company's capital structure resulting from the Demerger had
occurred on such date; (c) the Company's level of general and administrative
corporate costs is as if it operated as a separate entity; and, (d) compensation
expense related to the restricted stock awards pursuant to the Long-Term Stock
Incentive Plan (see Note 10) had been incurred for a full year.

Note 4--Supplemental Information

<TABLE>
<CAPTION>

================================================================================
                                                     1997            1996    
- --------------------------------------------------------------------------------
<S>                                                  <C>              <C>
Trade receivables
Trade receivables                                 $   371           $  472
Allowance for doubtful accounts                        (2)              (8)
                                                  --------          -------
                                                  $   369           $  464
                                                  ========          =======

Inventories
Finished products                                 $   121          $   270  
In-process products                                    21               12  
Raw materials                                          89              165
Other inventories                                      42               68
                                                  -------          --------
                                                  $   273          $   515
                                                  =======          ========
</TABLE>

Inventories valued on a LIFO basis were approximately $32 and $45 less than the
amount of such inventories valued at current cost at December 31, 1997 and 1996,
respectively.


                                            35








<PAGE>

<PAGE>

                           Millennium Chemicals Inc.
             Notes to Consolidated (Combined) Financial Statements
                    (in millions unless otherwise indicated)
<TABLE>
<CAPTION>
================================================================================
                                                   1997            1996    
- --------------------------------------------------------------------------------
<S>                                             <C>             <C>
Property, plant and equipment
Land and buildings                               $  247          $  364 
Machinery and equipment                           1,429           2,494
Leasehold improvements                               --               4
                                                 ------          ------
                                                  1,676           2,862
Allowance for depreciation 
and amortization                                    825             831
                                                 ------          ------
                                                 $  851          $2,031
                                                 ======          ======
Goodwill                                         $  528          $1,963
Accumulated amortization                             60             197
                                                 ------          ------
                                                 $  468          $1,766
                                                 ======          ======
</TABLE>

<TABLE>
<CAPTION>
================================================================================
                                            1997            1996            1995
- --------------------------------------------------------------------------------
<S>                                      <C>              <C>             <C>
Amortization expense                      $   45           $  48           $  58
                                          ======           =====           =====
</TABLE>

In connection with the formation of Equistar, consolidated goodwill has been
reduced by $1,253.

Rental expense for operating leases is as follows:

<TABLE>
<CAPTION>

================================================================================
                                           1997            1996            1995
- --------------------------------------------------------------------------------
<S>                                         <C>             <C>            <C>
Minimum rentals                          $   55          $   53          $   59
                                         ======          ======          ======
</TABLE>

Future minimum rental commitments under non-cancelable operating leases, as of
December 31, 1997, are as follows:

<TABLE>
<S>                        <C>
1998                       $ 7
1999                         7
2000                         5
2001                         4
2002                         3
Thereafter                   6
</TABLE>

Note 5--Impairment of Long-Lived Assets

During 1996, the Company recorded a $75 non-recurring charge ($48 after tax), to
reduce the carrying value of certain facilities employed in sulfate-process
manufacturing of TiO2 and to provide for the cost associated with the closure of
certain of these facilities. During the first half of 1996, intense price
competition was experienced, as customers of the anatase products associated
with the sulfate-process operations sought more cost-efficient manufacturing
inputs to their applications. As a result of the deterioration of market
conditions in the TiO2 industry, the Company decided to implement programs which
included a reduction of its sulfate-process manufacturing capacity both in the
United Kingdom and the United States. The 10,000 metric tons per annum ("tpa")
sulfate-process plant in Stallingborough, United Kingdom, has been closed, and
production at the 66,000 tpa sulfate-process facility in Baltimore, Maryland,
has been reduced by approximately one-third. The carrying value of plant and
equipment associated with sulfate-process manufacturing was reduced by $60 as a
result of evaluating the recoverability of such assets under the unfavorable
market conditions existing at that time. The amount of the write-down was
determined by comparison to the fair value of the related assets, as determined
based on the projected discounted cash flows associated with such assets.

During 1996, the Company also recorded an initial non-cash charge resulting from
adopting the evaluation methodology provided by SFAS 121 of $4,497 ($3,206 after
tax), related to one of the Discontinued Businesses. Prior to the adoption of
SFAS 121, asset impairment was evaluated at an operating company level based on
the contribution of operating profits and undiscounted cash flows being
generated from those operations. Under this policy, assets used in one of the
Discontinued Businesses, comprised of approximately 20 separate operating
companies, were evaluated for impairment based on gross margins and cash flows
generated by each separate operating company in a given business cycle.
Evaluation of the businesses' assets at this level did not result in any
impairment.

SFAS 121 requires the impairment review to be performed at the lowest level of
asset grouping for which there are identifiable cash flows, which represents a
change from the level at which the previous accounting policy measured
impairment. In this case, economic groupings of assets were made based on local
marketplaces. Evaluation of assets at this lower grouping level indicated an
impairment of certain of those assets. The impairment loss was measured based on
the difference between estimated discounted cash flows and the carrying value of
such assets.

                                        36








<PAGE>

<PAGE>


                              Millennium Chemicals
              Notes to Consolidated (Combined) Financial Statements
                    (in millions unless otherwise indicated)


Note 6--Income Taxes

<TABLE>
<CAPTION>
======================================================================================
                                                1997            1996            1995
- --------------------------------------------------------------------------------------
<S>                                         <C>             <C>             <C>
Pretax income is generated from
United States                                $   316         $   259         $   473
Foreign                                           26              71              81
                                             -------         -------         -------
                                             $   342         $   330         $   554
                                             =======         =======         =======
Income taxes are comprised of
Federal
    Current                                  $   19          $    67         $   145
    Deferred                                    116           (1,083)             54
Foreign                                           6               15              29
State and local                                  16               23              17 
                                             ------          -------         -------
                                             $  157          $  (978)        $   245
                                             ======          =======         =======
Income taxes are classified as
Continuing operations                         $ 157          $   189         $   223
Discontinued operations                         --            (1,167)             22
                                             ------          -------         -------
                                             $  157          $  (978)        $   245
                                             ======          =======         =======
</TABLE>

The Company's effective income tax rate differs from the amount computed by
applying the statutory federal income tax rate as follows:

<TABLE>
<CAPTION>
=======================================================================================
                                                 1997              1996            1995 
- ---------------------------------------------------------------------------------------
<S>                                             <C>               <C>             <C>
Continuing operations
Statutory federal income tax rate                35.0%             35.0%           35.0%        
Basis difference relating to 
    Suburban Propane                               --              17.4              --
State and local income taxes,
    net of federal benefit                        3.0               5.0             4.2
Provision for non-deductible 
    expenses, primarily goodwill 
    amortization                                  5.2               5.2             4.0
Non-taxable foreign interest income                --              (2.5)           (1.2)
Utilization of net operating losses                --              (5.1)           (3.3)
Other                                             2.7               2.3             1.6
                                                 -----             -----           -----
Effective income tax rate 
    for continuing operations                    45.9%             57.3%           40.3%
                                                 =====             =====           =====
Discontinued operations 
Effective income tax rate                                          29.1%           55.4%
                                                                   =====           =====
</TABLE>


The difference between the effective income tax rate on discontinued operations
and the statutory federal income tax rate primarily relates to non-deductible
goodwill amortization and tax depletion.

At December 31, 1997, certain subsidiaries of the Company had available
operating loss carryforwards aggregating $20 which expire in the years 2003
through 2008, all of which are subject to certain limitations on their use.

Significant components of deferred taxes are as follows:


<TABLE>
<CAPTION>

================================================================================
                                                 1997            1996
- --------------------------------------------------------------------------------
<S>                                              <C>              <C>
Deferred tax assets
Environmental and legal obligations             $  35           $  39 
Other postretirement benefits 
    and pension obligations                        29             118
Net operating loss carryforwards                    7              83 
Capital loss carryforwards                        143             112 
AMT credits                                       131             114
Other accruals                                     48              92
                                                ------          ------
                                                  393             558
Valuation allowance                              (143)           (112)
                                                ------          ------
    Total deferred tax assets                     250             446
                                                ------          ------
Deferred tax liabilities
Excess of book over tax basis in property, 
    plant and equipment                           314             306 
Other                                             194             208
                                                ------          ------
    Total deferred tax liabilities                508             514
                                                ------          ------
    Net deferred tax liabilities 
        ($22 in 1997 and $10 in 1996,
        classified in Current assets)           $ 258           $  68
                                                ======          ======
</TABLE>

Certain of the federal income tax returns of the Consolidated Group and certain
of the state income tax returns of the Company's subsidiaries are currently
under examination by the Internal Revenue Service. In the opinion of management,
any assessments that may result will not have a material adverse effect on the
financial condition or results of operations of the Company.


                                                37







<PAGE>

<PAGE>


                            Millennium Chemicals Inc.
              Notes to Consolidated (Combined) Financial Statements
                    (in millions unless otherwise indicated)


Note 7--Long-Term Debt and Credit Arrangements

<TABLE>
<CAPTION>
================================================================================
                                                      1997            1996
- --------------------------------------------------------------------------------
<S>                                                <C>             <C>
Revolving Credit Agreement bearing interest
 at either the bank's prime lending rate,
 LIBOR or NIBOR plus .275% at the option
 of the Company plus Facility Fee of .15%
    to be paid quarterly                           $   546          $1,540

7% Senior Notes due 2006 
    (net of unamortized discount of $.5 and $.5)       500             500

7.625% Senior Notes due 2026 
    (net of unamortized discount of $1.1 and $1.1)     249             249

Debt payable through 2007 at interest rates 
    ranging from 2.4% to 11%                            52              77      

Less current maturities of long-term debt              (20)             (6)
                                                    -------         -------
                                                    $1,327          $2,360
                                                    =======         =======
</TABLE>


Under the Revolving Credit Agreement, as amended as of October 20, 1997, certain
of the Company's subsidiaries may borrow up to $750 under the five-year
unsecured revolving credit facility, which matures in July 2001 (the "Credit
Agreement"). The Company is the guarantor of this facility. Borrowings under
the Credit Agreement may consist of standby loans or uncommitted competitive
loans offered by syndicated banks through an auction bid procedure. Loans may be
borrowed in United States dollars and/or other currencies. The proceeds from the
borrowings may be used to provide working capital and for general corporate
purposes.

During 1997, the Company used the $750 of proceeds received on the formation of
Equistar to permanently reduce its obligations under this facility. In addition,
borrowing availability is expected to be permanently reduced by $250 as funds
are received on the collection of the retained accounts receivable related to
the businesses contributed to Equistar.

The Credit Agreement contains covenants and provisions that restrict, among
other things and with certain exceptions, the ability of the Company and its
material subsidiaries to: (i) create liens on any of its property or assets, or
assign any rights to or security interests in future revenues; (ii) engage in
sale and leaseback transactions; (iii) engage in mergers, consolidations and
sales of all or substantially all of their assets on a consolidated basis; (iv)
enter into agreements restricting dividends and advances by their subsidiaries;
and, (v) engage in transactions with affiliates other than those based on
arm's-length negotiations. The Credit Agreement also limits the ability of
certain subsidiaries of the Company to incur indebtedness or issue preferred
stock. In addition, the Credit Agreement requires the Company to satisfy certain
financial performance criteria.

The indenture under which the Senior Notes and Senior Debentures are issued
contains certain covenants that limit, among other things and with certain
exceptions: (i) the ability of Millennium America Inc. and its Restricted
Subsidiaries (as defined) to grant liens or enter into sale and leaseback
transactions; (ii) the ability of the Restricted Subsidiaries to incur
additional indebtedness; and, (iii) the ability of Millennium America Inc. and
the Company to merge, consolidate or transfer substantially all of their
respective assets.

At December 31, 1996, the Company had outstanding notes payable of $98 bearing
interest at an average rate of approximately 7.2% with maturity of thirty days
or less. At December 31, 1997, the Company and its subsidiaries had outstanding
standby letters of credit amounting to $124 and had unused availability under
short-term lines of credit and its credit facility of $358. In addition, the
Company has guaranteed certain debt obligations of Equistar up to $750.

The maturities of long-term debt during the next five years are as follows:
1998--$20; 1999--$7; 2000--$17; 2001--$549; and, 2002 and beyond--$754.

Interest paid for the years ended December 31, 1997, 1996 and 1995 was $129, $58
and $380, respectively.

Note 8--Financial Instruments

Fair Value of Financial Instruments: The fair value of all short-term financial
instruments approximate their carrying value due to their short maturity. The
fair value of long-term financial instruments (excluding forward exchange
contracts, interest rate protection agreements and the Senior Notes and Senior
Debentures) approximates carrying value as they were based on terms that
continue to be available to the Company from its lenders.


                                     38








<PAGE>

<PAGE>


                           Millennium Chemicals Inc.
             Notes to Consolidated (Combined) Financial Statements
                    (in millions unless otherwise indicated)

The fair value of the Company's other financial instruments are based upon
estimates received from independent financial advisors as follows:

<TABLE>
<CAPTION>
===================================================================================
                                         1997                        1996
- -----------------------------------------------------------------------------------
<S>                             <C>           <C>              <C>           <C>
                                Carrying      Fair             Carrying       Fair
                                  Value       Value              Value        Value
                                --------      -----            --------       ------
Senior Notes and Debentures      $   749      $ 748             $   750        $ 732
</TABLE>


Off-Balance Sheet Risk: The Company has certain receivables, payables and
short-term borrowings denominated in currencies other than the functional
currency of the Company and/or its subsidiaries. During the year the Company
hedged certain of these exposures by entering into forward exchange contracts.
Gains and losses related to these hedges are recognized in income as part of,
and concurrent with, the hedged transactions. The Company does not use
derivative financial instruments for trading or speculative purposes.

At December 31, 1997, the stated or notional amounts of the Company's
outstanding forward exchange contracts mature within 90 days. The table below
summarizes the contractual amounts of the Company's forward exchange contracts
in United States dollars. The foreign currency amounts have been translated into
United States dollars using the exchange rate at the reporting date.

<TABLE>
<CAPTION>
====================================================================================
                    (Buy) Sell
- ------------------------------------------------------------------------------------
<S>                    <C>
Australian Dollars   $(14)
German Marks            4
French Francs           5
Italian Lira            4
Dutch Guilders          3
Belgium Francs          2
Spanish Pesetas         2
                     ----
                     $  6
                     ====
</TABLE>


The Company enters into interest rate protection agreements to manage interest
costs and risks associated with changing interest rates; these agreements
effectively convert underlying variable rate debt into fixed rate debt. At
December 31, 1997, the Company had several such agreements covering various
periods. The notional amount of these agreements was $250 at December 31, 1997.
The fixed rates payable to the Company under these agreements average 5.9% with
terms expiring at various dates through October 1998.

Note 9--Pension and Other Postretirement Benefits

Domestic Pension Plans: The Company has several noncontributory defined benefit
pension plans covering substantially all of its United States employees. The
benefits for these plans are based primarily on years of credited service and
average compensation as defined under the respective plan provisions. The
Company's funding policy is to contribute amounts to the plans sufficient to
meet the minimum funding requirements set forth in the Employee Retirement
Income Security Act of 1974, plus such additional amounts as the Company may
determine to be appropriate from time to time.

The Company also sponsors defined contribution plans for its salaried and
certain union employees. Contributions relating to defined contribution plans
are made based upon the respective plan provisions.

The components of net periodic pension cost for continuing operations for the
Company's United States defined benefit plans and the total contributions
charged to pension expense for the Company's United States defined contribution
plans are as follows:

<TABLE>
<CAPTION>
================================================================================
                                          1997          1996            1995
- --------------------------------------------------------------------------------
<S>                                    <C>           <C>              <C>
Service cost benefit earned 
    during the period                   $   13        $   12          $   15
Interest cost on projected 
    benefit obligation                      46            45              54
Actual return on plan assets               (89)          (68)            (79)
Net amortization and deferral               28            (1)             --
Curtailment gain                             5            --              --
                                        ------        -------         -------
Net periodic pension expense (income) 
    for defined benefit plans                3           (12)            (10)
Defined contribution plans                   1             2               4
                                        ------        -------         -------
Total pension expense (income)          $    4        $  (10)         $   (6)
                                        ======        =======         =======
</TABLE>

Assumptions used in the actuarial calculations relating to the defined benefit
plans were as follows:

<TABLE>
<CAPTION>
====================================================================================
                                                 1997           1996          1995
- ------------------------------------------------------------------------------------
<S>                                              <C>           <C>           <C>
Weighted-average discount rates                  7.25%          7.50%         7.50%
Rates of increase in 
    compensation levels                          4.25%          4.25%         4.25%
Expected long-term rate 
    of return on assets                          9.00%          9.00%         9.00%
</TABLE>


                                          39







<PAGE>

<PAGE>


                           Millennium Chemicals Inc.

             Notes to Consolidated (Combined) Financial Statements
                    (in millions unless otherwise indicated)

The following table sets forth the funded status and amounts recognized in the
consolidated balance sheets for the Company's United States defined benefit
pension plans: 

<TABLE>
<CAPTION>
===========================================================================================================================
                                                                           1997                               1996
- ---------------------------------------------------------------------------------------------------------------------------
<S>                                                          <C>                <C>               <C>              <C>        
                                                               Plans Whose        Plans Whose       Plans Whose    Plans Whose
                                                             Assets Exceed      Accumulated       Assets Exceed    Accumulated
                                                               Accumulated        Benefits          Accumulated     Benefits
                                                                  Benefits           Exceed Assets     Benefits    Exceed Assets
                                                              -------------      -------------     -------------   -------------
Actuarial present value of benefit obligations
    Vested benefit obligation                                        $(497)             $ (98)           $(500)           $ (86)
    Nonvested benefit obligation                                       (12)                (8)             (12)              (7)
                                                                     ------             ------           ------           ------
Accumulated benefit obligation                                        (509)              (106)            (512)             (93)

Projected benefit obligation                                          (549)              (123)            (546)            (111)
Plan assets at fair value                                              681                 96              670               85
                                                                     ------             ------           ------           ------
Projected benefit obligation less than (in excess of) plan assets      132                (27)             124              (26)
Add (deduct)
    Unrecognized prior service cost                                     --                  5               --                5
    Unrecognized net loss                                                2                  7               25               11
    Unrecognized net asset at date of adoption, net of amortization     (1)                --               (2)              --
    Adjustment required to recognize minimum liability                  --                 (5)              --               (6)
                                                                     ------             ------           ------           ------
Prepaid (accrued) pension costs (included in Investments and other
assets)                                                              $ 133              $ (20)           $ 147            $ (16)
                                                                     =======            ======           ======           ======
</TABLE>


The plans' assets are primarily included in a master trust, which principally
invests in listed stocks and bonds, including common stock of the Company which,
at market value, comprises less than 1% of the master trust's assets at
December 31, 1997.

Postretirement Benefits: The Company provides unfunded health care and life
insurance benefits to certain groups of retirees. Net periodic postretirement
benefit cost includes the following components:

<TABLE>
<CAPTION>
================================================================================
                                               1997         1996          1995
- --------------------------------------------------------------------------------
<S>                                            <C>          <C>          <C>
Service cost                                    $ 2          $ 2          $ 3
Interest cost                                     4            4            9
                                                ---          ---         ----
Net periodic postretirement 
    benefit cost                                $ 6          $ 6         $ 12
                                                ===          ===         ====
</TABLE>

The following table presents the plans' unfunded status reconciled with amounts
recognized in the Company's balance sheets:

<TABLE>
<CAPTION>
================================================================================
                                                 1997                 1996
- --------------------------------------------------------------------------------
<S>                                              <C>                 <C>             
Retirees                                         $(110)               $(201)
Fully eligible active plan participants             (9)                 (10)
Other active plan participants                      (8)                 (23)
                                                 ------               ------
Accumulated postretirement                  
    benefit obligation                            (127)                (234)
Unrecognized net gain                              (26)                  (9)
                                                 ------               ------
Accrued postretirement benefit 
    obligation (included in other liabilities)   $(153)               $(243)
                                                 ======               ======
</TABLE>

The weighted-average annual assumed rates of increase in the health care cost
trend rate are 9.4%-12.5% and are assumed to decrease .5% a year to 5.5%-6.0%.
The effect of increasing the assumed health care cost trend rates by 1% in each
year would increase the accumulated postretirement benefit obligation as of
December 31, 1997, by $7, and the aggregate of service and interest components
of net periodic postretirement benefit cost for 1997 by $3.


                                      40








<PAGE>

<PAGE>

                            Millennium Chemicals Inc.
              Notes to Consolidated (Combined) Financial Statements
                    (in millions unless otherwise indicated)

The weighted-average discount rate used in determining the accumulated
postretirement benefit obligation was 7.25% and 7.5% at December 31, 1997 and
1996, respectively.

Foreign Benefit Arrangements: Pension and other employee benefits of the
Company's foreign subsidiaries are primarily provided by government-sponsored
plans and are being accrued currently over the period of active employment. Such
amounts are not material.

Note 10--Long-Term Incentive Plan

The Company adopted a Long-Term Stock Incentive Plan ("Stock Incentive Plan")
for the purpose of enhancing the profitability and value of the Company for the
benefit of its shareholders. A maximum of 3,909,000 shares of common stock may
be issued or used for reference purposes pursuant to the Stock Incentive Plan.

The Stock Incentive Plan provides for the following types of awards: (i) stock
options, including incentive stock options and non-qualified stock options; (ii)
stock appreciation rights; (iii) restricted stock; (iv) performance units; and,
(v) performance shares. During 1996 and 1997, 2,912,322 and 174,736 shares,
respectively, of performance-based and time-vested restricted stock were awarded
to executive officers and key managers. The vesting schedule for the initial
award was as follows: (i) three equal tranches aggregating 25% of the total
award will vest in each of October 1999, 2000 and 2001; and, (ii) three equal
tranches aggregating 75% of the total award will be subject to the achievement
of "value creation" performance criteria established by the Compensation
Committee for each of the three performance cycles commencing January 1, 1997,
and ending December 31, 1999, 2000 and 2001, respectively. If and to the extent
such criteria are achieved, half of the earned portion of the 25% tranche
relating to a particular performance-based cycle of the award will vest
immediately and the remainder will vest in five equal annual installments
commencing on the first anniversary of the end of the cycle.

Options granted under the Stock Incentive Plan vest three years from the date of
grant and expire ten years from the date of grant. All grants under the Stock
Incentive Plan fully vest in the event of a change-in-control (as defined by the
plan) of the Company, or in the case of employees of a subsidiary of the
Company, a change-in-control of the relevant subsidiary.

The Company had authorization under the Stock Incentive Plan to grant awards for
up to an additional 636,315 shares at December 31, 1997.

Unearned restricted shares, based on the market value of the shares at each
balance sheet date, are included as a separate component of shareholders' equity
and amortized over the restriction period. Compensation expense recognized in
accordance with Accounting Principles Board Opinion No. 25 was $11 and $2 for
1997 and 1996, respectively.

During 1997, as a result of the change-in-control provisions in the Plan being
triggered by the formation of the Equistar venture, certain restricted stock
awards and options held by employees of Millennium Petrochemicals became fully
vested. Compensation expense of $12 was recognized as a result of this vesting.

A summary of changes in the awards under the Plan (other than awards to
non-employee directors) is as follows:

<TABLE>
<CAPTION>
============================================================================================================
                           Restricted     Weighted-Average      Share     Weighted-Average
                             Shares          Grant Price        Options    Exercise Price
- ------------------------------------------------------------------------------------------------------------
<S>                          <C>             <C>          <C>            <C>   
Initial awards 
    October 8, 1996         2,912,322        $ 22.32      523,000       $ 19.00

Balance at
    December 31, 1996       2,912,322        $ 22.32      523,000       $ 19.00
Vested and issued            (683,273)         22.32           --            --            
Cancelled                    (226,491)         22.32     (200,000)        19.00
Granted                       174,736          23.72       97,000         22.15
                            ----------                    --------              
Balance at 
    December 31, 1997       2,177,294        $ 22.43      420,000       $ 19.79
                            =========        =======     ========       ========
</TABLE>


For options outstanding at December 31, 1997, the range of exercise prices was
$18.00 to $24.00 per share, and the weighted-average remaining contractual life
was 9 years. The fair value of such options at December 31, 1997, was $4.

The Company adopted the disclosure-only provisions of Statement of Financial
Accounting Standards No. 123 ("SFAS 123"), "Accounting for Stock-Based
Compensation." Had compensation cost for the Company's incentive plan been
determined based on the fair value of such grants on the grant date in
accordance with the provisions of SFAS 123, the impact on net income and EPS
would not have been materially different.


                                           41








<PAGE>

<PAGE>


                       Millennium Chemicals Inc. Notes to
                  Consolidated (Combined) Financial Statements
                    (in millions unless otherwise indicated)


Note 11--Commitments and Contingencies

The Company is subject, among other things, to several proceedings under the
Federal Comprehensive Environmental Response Compensation and Liability Act and
other federal and state statutes or agreements with third parties. These
proceedings are in various stages ranging from initial investigation to active
settlement negotiations to implementation of the clean-up or remediation of
sites. Additionally, certain of the Company's subsidiaries are defendants or
plaintiffs in lawsuits that have arisen in the normal course of business,
including those relating to commercial transactions and product liability. While
certain of the lawsuits involve allegedly significant amounts, it is
management's opinion, based on the advice of counsel, that the ultimate
resolution of such litigation will not have a material adverse effect on the
Company's financial position or results of operations. The Company believes that
the range of potential liability for these matters, collectively, which
primarily relate to environmental remediation activities, is between $150 and
$184 and has accrued $184 as of December 31, 1997.

The Company has various contractual obligations to purchase raw materials used
in its production of TiO2 and fragrance and flavor chemicals. Commitments to
purchase ore used in the production of TiO2 are generally 3-to 8-year contracts
with competitive prices generally determined at a fixed amount subject to
escalation for inflation. Total commitments to purchase ore aggregate
approximately $1,100 for TiO2 and expire between 1998 and 2002. Commitments to
acquire crude sulfate turpentine, used in the production of fragrance and flavor
chemicals, are generally pursuant to 1-to 5-year contracts with prices based on
the market price and which expire between 1998 and 2000.

The Company is organized under the laws of Delaware and is subject to United
States federal income taxation of corporations. However, in order to obtain
clearance from the United Kingdom Inland Revenue as to the tax-free treatment of
the stock dividend for United Kingdom tax purposes for Hanson and Hanson
shareholders, Hanson agreed with the United Kingdom Inland Revenue that the
Company will continue to be centrally managed and controlled in the United
Kingdom at least until September 30, 2001. Hanson also agreed that the Company's
Board of Directors will be the only medium through which strategic control and
policy making powers are exercised, and that board meetings almost invariably
will be held in the United Kingdom during this period. The Company has agreed
not to take, or fail to take, during such five-year period, any action that
would result in a breach of, or constitute non-compliance with, any of the
representations and undertakings made by Hanson in its agreement with the United
Kingdom Inland Revenue and to indemnify Hanson against any liability and
penalties arising out of a breach of such agreement. The Company's By-Laws
provide for similar constraints. The Company and Hanson estimate that such
indemnification obligation would have amounted to approximately $421 if it had
arisen during the twelve months ended September 30, 1997, and that such
obligation will decrease by approximately $84 on each October 1 prior to October
1, 2001, when it will expire.

If the Company ceases to be a United Kingdom tax resident at any time, the
Company will be deemed for purposes of United Kingdom corporation tax on
chargeable gains to have disposed of all of its assets at such time. In such a
case, the Company would be liable for United Kingdom corporation tax on
chargeable gains on the amount by which the fair market value of those assets at
the time of such deemed disposition exceeds the Company's tax basis in those
assets. The tax basis of the assets would be calculated in pounds sterling,
based on the fair market value of the assets (in pounds sterling), at the time
of acquisition of the assets by the Company, adjusted for United Kingdom
inflation. Accordingly, in such circumstances, the Company could incur a tax
liability even though it has not actually sold the assets and even though the
underlying value of the assets may not actually have appreciated (due to
currency movements). Since it is impossible to predict the future value of the
Company's assets, currency movements and inflation rates, it is impossible to
predict the magnitude of such liability, should it arise.

Note 12--Operations by Industry Segment and Geographic Area

The Company's principal operations are grouped into four business segments:
titanium dioxide and related products, acetyls, specialty chemicals, and
polyethylene, alcohol and related products. See page 19 for information with
respect to these segments.

Most of the Company's foreign operations are conducted by subsidiaries in the
United Kingdom, France and Australia. Sales between the Company's operations are
made on terms similar to those of its third-party distributors. Sales between
geographic areas are not significant.

Income and expense not allocated to industry segment in computing operating
income include interest income and expense and other income and expense of a
general corporate nature.

Export sales from the United States for the years ended December 31, 1997, 1996
and 1995 were approximately $273, $272 and $379, respectively.


                                        42







<PAGE>

<PAGE>


                            Millennium Chemicals Inc.
              Notes to Consolidated (Combined) Financial Statements
                         (in millions except share data)

<TABLE>
<CAPTION>
==========================================================================================
By Geographic Area                                     1997             1996          1995
- ------------------------------------------------------------------------------------------
<S>                                                 <C>              <C>            <C>   
Net sales
United States                                        $2,677           $2,693        $3,462
Foreign                                                 393              377           368
Inter-area elimination                                  (22)             (30)          (30)
                                                     -------          -------       -------
    Total                                            $3,048           $3,040        $3,800
                                                     =======          =======       =======
Operating income
United States                                        $  422           $  245        $  743
Foreign                                                  27               38            99
                                                     ------           ------        ------
    Total                                            $  449           $  283        $  842
                                                     ======           ======        ======
Identifiable assets
United States                                        $3,599           $4,733
Foreign                                                 727              868
                                                     -------          -------
    Total                                            $4,326           $5,601
                                                     =======          =======
</TABLE>


Note 13--Subsequent Events

On March 20, 1998, the Company, Lyondell and Occidental Petroleum Corporation
("Occidental"), announced the signing of a definitive agreement to expand
Equistar with the addition of the ethylene, propylene, ethylene oxide and
derivatives businesses of Occidental's chemical subsidiary. Occidental will
contribute the net assets of these businesses (including $200 of debt related to
these businesses) to Equistar. Equistar will borrow an additional $500, $425 of
which will be distributed to Occidental and $75 to the Company. Upon the
completion of this transaction, expected to be by mid-1998, Equistar will be
owned 41% by Lyondell, 29.5% by Occidental and 29.5% by the Company.

Market for Registrant's Common Equity and Related Shareholder Matters

The following table sets forth the high and low closing sales prices per share
of Common Stock reported by the NYSE since October 2, 1996, the commencement of
"regular way" trading:

<TABLE>
<CAPTION>
================================================================================
                                             High            Low
- --------------------------------------------------------------------------------
<S>                                          <C>             <C>
1996
Fourth quarter                               $23.000         $17.250

1997
First quarter                                $20.875         $16.875
Second quarter                                22.750          17.500
Third quarter                                 23.500          20.250
Fourth quarter                                24.063          22.250
</TABLE>

As of March 20, 1998, there were 34,615 record holders of Common Stock. The
closing price per share of Common Stock as reported by the NYSE on such date was
$31.00.

                                        43



<PAGE>
 




<PAGE>
                                                                    EXHIBIT 21.1
 
                           MILLENNIUM CHEMICALS INC.
 
<TABLE>
<CAPTION>
                                                                                          STATE OR COUNTRY
                                                                                          OF INCORPORATION
                                                                                        ---------------------
<S>                                                                                     <C>
Millennium Chemicals Inc.                                                               Delaware/UK Resident
  Millennium Overseas Holdings Limited                                                  United Kingdom
     Millennium Chemicals UK Holdings Limited                                           United Kingdom
       Millennium Inorganic Chemicals Limited                                           United Kingdom
          Millennium Inorganic Chemicals S.A.                                           France
            Societe Immobiliere de la Cote Societe Anonyme                              France
            Thann Chimie Societe Anonyme                                                France
               Millennium Holdings Brasil Ltda.                                         Brazil
                 Millennium Inorganic Chemicals do Brasil S.A. (1)                      Brazil
     SCMC Holdings B.V.                                                                 Netherlands
          SCM Chemicals Ltd.                                                            Australia
     Millennium America Holdings Inc.                                                   Delaware
          Millennium America Inc.                                                       Delaware
            Millennium Holdings Inc.                                                    Delaware
               Millennium Specialty Chemicals Inc.                                      Delaware
               Millennium Petrochemicals Inc.                                           Virginia
                 Millennium Petrochemicals GP LLC (2)                                   Delaware
                 Millennium Petrochemicals LP LLC (2)                                   Delaware
                 Millennium Methanol LP Inc. (3)                                        Delaware
                 Millennium Methanol GP Inc. (3)                                        Delaware
                 Suburban Propane GP, Inc. (4)                                          Delaware
               Millennium Inorganic Chemicals Inc.                                      Delaware
                 HMB Holdings Inc.                                                      Delaware
                    MHC Inc.                                                            Delaware
                      LeMean Property Holdings Corporation                              Delaware
</TABLE>
 
- ------------
(1) Millennium Holdings Brasil Ltda. owns 99% of the voting shares and 72% of
    the total shares of Millennium Inorganic Chemicals do Brasil S.A.
 
(2) Millennium Petrochemicals GP LLC and Millennium Petrochemicals LP LLC
    together own a 29.5% interest in Equistar Chemicals, LP.
 
(3) Millennium Methanol LP Inc. and Millennium Methanol GP Inc. together own an
    85% interest in La Porte Methanol Company, L.P.
 
(4) Suburban Propane GP, Inc. owns a 26.4% aggregate interest in Suburban
    Propane Partners, L.P. and Suburban Propane, L.P.


<PAGE>


<PAGE>
                                                                    EXHIBIT 23.1
 
                     CONSENT OF PRICEWATERHOUSECOOPERS LLP
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
     We hereby consent to the incorporation by reference in the Registration
Statements of Millennium Chemicals Inc. on Form S-8 (No. 333-13143) pertaining
to the Millennium Chemicals Inc. Retirement Savings and Investment Plan, (No.
333-13147) pertaining to the Quantum Chemical Retirement Savings and Investment
Plan for Hourly Represented Employees, (No. 333-13717) pertaining to the
Millennium Chemicals Inc. Long-Term Stock Incentive Plan, and (No. 333-53139)
pertaining to the Salary and Bonus Deferral Plan, of our report on the
Millennium Chemicals Inc. financial statements dated January 21, 1999, which
appears on page 29 of the Annual Report to Shareholders which is incorporated in
this Annual Report on Form 10-K. We also consent to the incorporation by
reference to our report on Supplemental Financial Information and the Financial
Statement Schedule, which appears on page F-1 of this Annual Report on Form
10-K.
 
PRICEWATERHOUSECOOPERS LLP
 
Florham Park, New Jersey
March 29, 1999


 <PAGE>


<PAGE>
                                                                    EXHIBIT 23.2
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
     We hereby consent to the incorporation by reference in the Registration
Statements of Millennium Chemicals Inc. on Form S-8 (No. 333-13143) pertaining
to the Millennium Chemicals Inc. Retirement Savings and Investment Plan, (No.
333-13147) pertaining to the Quantum Chemical Retirement Savings and Investment
Plan for Hourly Represented Employees, (No. 333-13717) pertaining to the
Millennium Chemicals Inc. Long-Term Stock Incentive Plan, and (No. 333-53139)
pertaining to the Salary and Bonus Deferral Plan, of our report on the Equistar
Chemicals, LP financial statements dated February 26, 1999 which appears on
page F-5 of this Annual Report on Form 10-K.
 
PRICEWATERHOUSECOOPERS LLP
 
Houston, Texas
March 29, 1999


 <PAGE>


<PAGE>
                                                                    EXHIBIT 23.3
 
                        CONSENT OF INDEPENDENT AUDITORS
 
     We consent to the incorporation by reference in the Registration Statements
of Millennium Chemicals, Inc. on Form S-8 (No. 333-13143) pertaining to the
Quantum Chemical Retirement Savings & Investment Plan, Form S-8 (No. 333-13147)
pertaining to Quantum Chemical Retirement Savings & Investment Plan for Hourly
Represented Employees, Form S-8 (No. 333-13717) pertaining to Millennium
Chemicals, Inc. Long-Term Stock Incentive Plan, and Form S-8 (No. 333-53139)
pertaining to the Millennium Chemicals, Inc. Salary Bonus and Deferral Plan of
our report dated November 13, 1996 with respect to the consolidated financial
statements of Cornerstone-Spectrum, Inc. incorporated by reference in the Annual
Report (Form 10-K) of Millennium Chemicals, Inc. for the year ended December 31,
1998.
 
                                          ERNST & YOUNG LLP
 
Hackensack, New Jersey
March 29, 1999


<PAGE>


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