ARCO CHEMICAL CO
10-K, 1995-02-28
INDUSTRIAL ORGANIC CHEMICALS
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<PAGE>
 
 
 
 
 
 
 
 
 
 
                 [LOGO OF ARCO CHEMICAL COMPANY APPEARS HERE]
 
 
                            ARCO CHEMICAL COMPANY 
 
 
                           ANNUAL REPORT ON FORM 10-K

                                      1994
 
<PAGE>
 
                                     1994
 
                                   FORM 10-K
 
                               ----------------
 
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
 
Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act
of 1934 [Fee Required]
 
For the fiscal year ended December 31, 1994
 
Commission file number 1-9678
 
                             ARCO CHEMICAL COMPANY
            (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
               DELAWARE                              51-0104393
    (STATE OR OTHER JURISDICTION OF               (I.R.S. EMPLOYER
    INCORPORATION OR ORGANIZATION)               IDENTIFICATION NO.)
 
        3801 WEST CHESTER PIKE, NEWTOWN SQUARE, PENNSYLVANIA 19073-2387
            (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)         (ZIP CODE)
 
Registrant's telephone number, including area code: (610) 359-2000
 
Securities registered pursuant to Section 12(b) of the Act:
 
                                                    NAME OF EACH EXCHANGE
         TITLE OF EACH CLASS                         ON WHICH REGISTERED
        -------------------                          -------------------
     COMMON STOCK, $1.00 PAR VALUE.                NEW YORK STOCK EXCHANGE   
                                                  
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 was 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 the voting stock held by non-affiliates of the
registrant on February 1, 1995, based on the closing price on the New York
Stock Exchange composite tape on that date, was $676,992,390.
 
Number of shares of Common Stock, $1.00 par value, outstanding at December 31,
1994: 96,085,201.
 
                      DOCUMENTS INCORPORATED BY REFERENCE
 
The registrant's definitive proxy statement, which will be filed with the
Securities and Exchange Commission within 120 days after December 31, 1994
(incorporated by reference under Part III).
<PAGE>
 
                               TABLE OF CONTENTS
 
                                     PART I
<TABLE>
<CAPTION>
                                                                           PAGE
    ITEM                                                                   ----
  <C>       <S>                                                            <C>
  1. and 2. Business and Properties......................................    1
              General Development of Business............................    1
              Industry Segment and Geographic Disclosure.................    1
              Summary Description of Business and Products...............    1
              Sales and Marketing........................................    4
              Joint Ventures and Other Arrangements......................    4
              Research and Development...................................    5
              Raw Materials..............................................    5
              Competition................................................    5
              Properties and Production Facilities.......................    6
              Patents, Trade Names, and Trademarks.......................    7
              Environmental Matters......................................    7
              Human Resources............................................    8
        3.  Legal Proceedings............................................    8
        4.  Submission of Matters to a Vote of Security Holders..........    9

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

            Executive Officers of the Company............................   10

                                    PART II

        5.  Market for Registrant's Common Stock and Related Stockholder
             Matters.....................................................   12
        6.  Selected Financial Data......................................   13
        7.  Management's Discussion and Analysis of Financial Condition
             and Results of Operations...................................   13
        8.  Financial Statements.........................................   18
        9.  Changes in and Disagreements with Accountants on Accounting
             and Financial Disclosure....................................   40

                                    PART III

       10.  Directors and Executive Officers of the Registrant...........   40
       11.  Executive Compensation.......................................   40
       12.  Security Ownership of Certain Beneficial Owners and
             Management..................................................   40
       13.  Certain Relationships and Related Transactions...............   40

                                    PART IV

       14.  Exhibits and Reports on Form 8-K.............................   40
</TABLE>
 
                                      (i)
<PAGE>
 
                                     PART I
 
 
ITEMS 1. AND 2.BUSINESS AND PROPERTIES
 
GENERAL DEVELOPMENT OF BUSINESS
 
  ARCO Chemical Company (the company) is a Delaware corporation with principal
executive offices at 3801 West Chester Pike, Newtown Square, Pennsylvania
19073-2387 (telephone no. 610-359-2000). The company is the successor to
certain portions of the ARCO Chemical Division of Atlantic Richfield Company
(ARCO), a Delaware corporation. On June 9, 1987, ARCO transferred substantially
all the assets and liabilities of the oxygenates and polystyrenics businesses
of the then ARCO Chemical Division to the company in exchange for 80,000,001
shares of common stock. On October 5, 1987, the company completed an initial
public offering of 19,550,000 shares of common stock. As of February 17, 1995,
ARCO's 80,000,001 shares represented approximately 83.3 percent of the
outstanding shares of common stock. See Item 13.
 
  Prior to October 5, 1987, the company and ARCO entered into a number of
agreements for the purpose of defining the ongoing relationship between them.
These agreements were developed in connection with the establishment of the
company by ARCO, and, therefore, were not the result of arm's-length
negotiations between independent parties. For additional information relating
to certain continuing relationships between the company and ARCO, including
potential conflicts of interest, see Item 13 and Note 3 of Notes to
Consolidated Financial Statements.
 
  In January 1995, the company entered into a long-term arrangement with Rhone-
Poulenc for a supply of toluene di-isocyanate (TDI). Adding TDI to the list of
products sold by the company complements the company's existing line of polyols
products and strengthens its position in the polyurethanes market. Effective
January 1, 1995, the company is entitled to the entire TDI output of Rhone-
Poulenc's two plants in France, which have a combined annual capacity of
approximately 264 million pounds. The company will have responsibility for
marketing TDI to customers. See Note 12 of Notes to Consolidated Financial
Statements.
 
INDUSTRY SEGMENT AND GEOGRAPHIC DISCLOSURE
 
  Reference is made to Note 4 of Notes to Consolidated Financial Statements for
disclosure of financial information by geographic location.
 
SUMMARY DESCRIPTION OF BUSINESS AND PRODUCTS
 
  The company, including its subsidiaries, is a leading international
manufacturer and marketer of intermediate chemicals and specialty products used
in a broad range of consumer goods. The company's core product is propylene
oxide (PO), which it produces through two distinct process technologies based
on indirect oxidation (peroxidation) processes that yield co-products. One
process yields tertiary butyl alcohol (TBA) as the co-product; the other
process yields styrene monomer (SM) as the co-product. The two technologies are
mutually exclusive such that either a dedicated PO/TBA plant or a dedicated
PO/SM plant must be built.
<PAGE>
 
  Following is a list of certain of the company's principal products, the forms
in which they are sold, and typical end uses.
 
<TABLE>
<CAPTION>
PRODUCT         FORM                       TYPICAL USES
- -------         ----                       ------------
<S>             <C>                        <C>
Propylene oxide PO                         Polyether polyols (polyols), propylene
 (PO)                                       glycols, ethers, and surfactants
                Polyols                    Combined with isocyanates, such as
                                            TDI, for polyurethane applications
                                            such as flexible foam for seat
                                            cushions, bedding and carpet
                                            underlay; and coatings, adhesives,
                                            sealants, and elastomers
                Propylene glycols (PG)     Unsaturated polyester resins; food,
                                            cosmetic, and pharmaceutical
                                            applications; automotive coolants and
                                            aircraft deicers
                Propylene glycol ethers    Coatings and paints, cleaning
                 (PGE) and PGE acetates     compounds, solvents, and inks
                Butanediol,                Engineering resins, fibers, solvents,
                 Tetrahydrofuran (THF) and  resins, coatings and polyurethanes
                 N-Methyl
                 Pyrrolidone (NMP)
Tertiary butyl  Methyl tertiary butyl      Gasoline additives to enhance octane
 alcohol         ether (MTBE)               and reduce emissions
 (TBA)           and Ethyl tertiary butyl
                 ether                     
                 (ETBE)
                 Gasoline-grade TBA (GTBA) Octane enhancer
Styrene monomer SM                         Acrylonitrile-butadiene-styrene (ABS)
 (SM)                                       resins, polystyrene, expandable 
                                            polystyrene, rubber components, and 
                                            polyester resins
                DYLITE(R) expandable       Hot and cold drink cups, packaging,
                 polystyrene (EPS)          building and roof insulation, and
                                            flotation devices
                DYLENE(R) polystyrene      Disposable food service applications
                DYLARK(R) engineering      Automotive instrument panel structures
                 resin                      and headliners
</TABLE>
 
 Propylene Oxide and Derivatives
 
  Propylene oxide is a commodity chemical that the company consumes directly or
delivers to the merchant market through processing or sales agreements for
further conversion by its customers into derivative products, including polyols
for polyurethane applications, propylene glycols and PGEs, and various other
chemical products. Sales and other operating revenues for PO and derivatives
constituted 48 percent, 46 percent, and 47 percent, respectively, of the
company's total 1994, 1993, and 1992 sales and other operating revenues. In the
aggregate, the company consumed approximately 52 percent of its PO production
in 1994 for production of derivatives. See Item 7 for additional discussion.
 
  Based on published data, worldwide demand for PO was approximately 7.6
billion pounds in 1994. Approximately 90 percent of that volume was consumed in
the manufacture of three derivative families of products: polyols, propylene
glycols, and PGEs.
 
  The largest of the derivative families is polyols, which are used in the
manufacture of polyurethanes. Within the polyurethane industry, the largest
market for polyols is in flexible foams, which are produced when polyols are
reacted with isocyanates, such as TDI. Polyols and isocyanates are also used in
coating, adhesive, sealant and elastomer applications.
 
  Propylene glycols are principally used as an intermediate chemical to produce
unsaturated polyester resins. Propylene glycols are essentially nontoxic and
are also used in food, cosmetic, and pharmaceutical applications, automotive
coolants and aircraft deicers. Propylene glycol ethers and PGE acetates are
low-toxicity, high-performance solvents. The PG-based ethers and acetates have
a high solvent strength, which permits higher solids content, and are
compatible with water-based systems. These two characteristics reduce the need
for traditional solvents that have raised worker exposure concerns. Past
studies have indicated that these materials generally have safer toxicological
profiles than their ethylene oxide-based counterparts.
 
 
                                       2
<PAGE>
 
  Butanediol is an intermediate chemical having diverse applications in
engineering resins, elastomers, and solvents. In 1990, the company
commercialized acquired technology that produces butanediol from allyl
alcohol, a PO derivative.
 
 Tertiary Butyl Alcohol and Derivatives
 
  Tertiary butyl alcohol is the major co-product of one of the company's two
PO process technologies. The company utilizes most of its TBA to make MTBE, a
gasoline blending component that enhances octane and reduces emissions.
Worldwide demand for MTBE in 1994 was approximately 305 thousand barrels per
day, based on published data. Demand has increased as a result of the U.S.
Clean Air Act Amendments of 1990 (the Amendments), various state and local
regulations and oxygenate blending programs, and the need for incremental
octane in the U.S. and several other countries.
 
  In the U.S., the Amendments set minimum levels for oxygenates, such as MTBE,
in gasoline sold in areas not meeting specified air quality standards. These
requirements were implemented in two phases. The first phase, effective in
November 1992 for approximately 38 U.S. cities with high levels of carbon
monoxide during winter months, affected approximately 25 percent of the U.S.
gasoline market during the winter season. The second phase became effective
January 1, 1995 on a year-round basis for certain U.S. cities with ozone
pollution problems. The first and second phases combined affect approximately
45 percent of the U.S. gasoline market.
 
  In December 1992, the company commenced limited production of ETBE, an
alternative gasoline blending component. ETBE is manufactured from TBA and
ethanol and has a lower vapor pressure than MTBE and ethanol. On June 30,
1994, the Environmental Protection Agency (EPA) promulgated regulations under
the Clean Air Act requiring that 15 percent in 1995, and 30 percent
thereafter, of the oxygenate content in reformulated gasoline be supplied by
oxygenates such as ethanol and ETBE derived from renewable feedstocks. In
September 1994, the U.S. Court of Appeals for the District of Columbia granted
a temporary stay of the EPA regulations. The regulations, if implemented, are
not likely to have a significant impact on the company in the near term, but
may, in the long term, decrease demand for MTBE and increase demand for other
oxygenates derived from renewable feedstocks, including ETBE. Sales and other
operating revenues for TBA and derivatives constituted 30 percent, 35 percent,
and 36 percent, respectively, of the company's total 1994, 1993 and 1992 sales
and other operating revenues. See Item 7 for additional discussion.
 
 Styrene Monomer and Derivatives
 
  Styrene is the major co-product of the other of the company's two PO process
technologies. Styrene is a large-volume commodity chemical produced and traded
worldwide. Based on published data, worldwide demand in 1994 was approximately
34 billion pounds. The major markets include commodity and specialty polymer
applications, such as polystyrene, ABS, EPS and polyester resins, as well as
various rubber industry uses. The company utilized about 13 percent of its
styrene production in 1994 for production of derivatives, principally
expandable polystyrene and specialty polymer products (including DYLITE(R)
EPS, DYLENE(R) polystyrene, and DYLARK(R) engineering resin) that are used in
the packaging, insulation, and automotive industries, and a wide range of
consumer goods. The remainder was sold in the U.S. merchant market or in
selected export markets, or delivered under processing agreements. SM and
derivatives sales and other operating revenues constituted 19 percent, 16
percent, and 14 percent, respectively, of the company's 1994, 1993, and 1992
total sales and other operating revenues. See Item 7 for additional
discussion.
 
  The company's major polystyrenics and specialty polymer products are sold
under the company's registered trademarks. The company's largest polystyrenics
product, DYLITE(R) EPS, is a resin that is
 
                                       3
<PAGE>
 
sold to foam molders for three major applications: food service, insulation,
and protective packaging. In its various forms, EPS competes with other
hydrocarbon-based polymers and products based on natural materials.
 
  The company does not use CFCs to make EPS. The company, through membership in
the American Plastics Council and other organizations, is supporting industry
efforts to promote plastics recycling and energy recovery as a part of
comprehensive solutions to solid waste disposal. The company has joined with
several other companies to form the National Polystyrene Recycling Company
(NPRC), which has built and operates polystyrene recycling plants in the U.S.
to promote recycling of polystyrene plastics used for food service and
packaging products.
 
SALES AND MARKETING
 
  In 1994, most of the company's sales and other operating revenues were
derived from sales to, or processing agreements with, unrelated third parties.
Over the past three years, no single unrelated third-party customer, or any
related party customer, accounted for more than 10 percent of total sales and
other operating revenues in any one year.
 
  Since the early 1970s, the company has followed the practice of entering into
multi-year PO processing or sales agreements in an effort to mitigate any
adverse impact from competitive factors and economic business cycles on demand
for the company's PO. More recently, the company has also entered into a number
of multi-year MTBE sales agreements and SM sales and processing agreements.
 
  The company's sales are made through its own marketing and sales personnel
and through distributors and independent agents. The company maintains four
sales offices in the United States and sales offices or sales representation in
Australia, Austria, Brazil, Canada, China, France, Germany, Hong Kong,
Indonesia, Italy, Japan, Mexico, the Philippines, Russia, Singapore, Spain,
Taiwan, Thailand, and the United Kingdom.
 
  The company delivers products through sales agreements, processing
agreements, and spot sales. The company also processes customers' feedstocks
into PO and SM.
 
  For information about certain data relating to foreign operations and export
sales, see Note 4 of Notes to Consolidated Financial Statements.
 
JOINT VENTURES AND OTHER ARRANGEMENTS
 
  In January 1995, the company entered into a long-term arrangement with Rhone-
Poulenc for a supply of toluene di-isocyanate (TDI). Effective January 1, 1995,
the company is entitled to the entire TDI output of Rhone-Poulenc's two plants
in France, which have a combined annual capacity of approximately 264 million
pounds. Adding TDI to the list of products sold by the company complements the
company's existing line of polyols products and strengthens its position in the
polyurethanes market. The company will market Rhone-Poulenc's output of TDI.
See Note 12 of Notes to Consolidated Financial Statements.
 
  The world-scale PO/SM plant at the Channelview, Texas complex that was
completed in 1992 is owned by the company together with two equity investors as
limited partners. The limited partners each take a substantial portion of the
SM output of the plant through long-term processing agreements. The limited
partners' SM offtakes are proportionate to their equity interests. Under the
terms of the limited partnership agreement, the company sold an additional
equity interest to one of the limited partners in 1994. The company retains a
majority equity interest in the PO/SM plant.
 
  The company, through an affiliate, has a 50 percent equity interest in Nihon
Oxirane Co., Ltd. (Nihon Oxirane), a joint venture with Sumitomo Chemical Co.,
Ltd. and Showa Denko K.K. Since 1976, Nihon Oxirane has operated a PO/SM plant
in Chiba, Japan.
 
                                       4
<PAGE>
 
RESEARCH AND DEVELOPMENT
 
  The company has its principal research and development facility at Newtown
Square, Pennsylvania, a technical center at Villers Saint Paul, France, a
technical center in Singapore, and technical facilities in South Charleston,
West Virginia.
 
  The company's research and development expenditures for 1994, 1993, and 1992
were $76 million, $72 million, and $67 million, respectively.
 
RAW MATERIALS
 
  The principal hydrocarbon raw materials purchased by the company are
propylene, butanes, ethylene, benzene and methanol. The market prices of these
raw materials historically have been related to the price of crude oil and its
principal refinery derivatives and natural gas liquids. These materials are
available in bulk quantities via pipeline or marine vessels. The company's raw
material requirements are purchased from numerous suppliers in the United
States and Europe, with which the company has established contractual
relationships, including Lyondell Petrochemical Company, and in the spot
market. The company receives a portion of its methanol requirements under a
cost-based supply arrangement with a third party. See Item 13 and Note 3 of
Notes to Consolidated Financial Statements.
 
  The company is a large consumer of isobutane for chemical production. The
company has invested in facilities, or entered into processing agreements with
unrelated third parties, to convert the widely available commodity normal
butane to isobutane. The company is also a large consumer of oxygen for its
PO/TBA plants at Bayport, Texas; Rotterdam, the Netherlands; and Fos-sur-Mer,
France.
 
  In order to assure adequate and reliable sources of supply at competitive
prices and rates, the company has entered into long-term agreements and other
arrangements with suppliers of raw materials, products, industrial gas and
other utilities. See Note 12 of Notes to Consolidated Financial Statements.
 
COMPETITION
 
  Competition within the company's segment of the chemical industry is
significant and depends upon a variety of factors, including quality, product
price, reliability of supply, technical support, customer service, and
potential substitute materials. Capacity share figures for the company and its
competitors, disclosed below, are based on completed production facilities and
include the full capacity of on-stream joint-venture facilities. In the case of
MTBE, capacity share figures also include full capacity of third-party
processors with which the company currently has processing agreements.
 
  The company's major worldwide PO competitor is Dow Chemical Company (Dow).
Dow's operations are based on chlorohydrin technology, and Dow is integrated
upstream from chlorine and propylene and downstream into a variety of PO
derivatives. Texaco Chemical Company has completed construction of a PO/MTBE
plant in Texas, which is presently in the initial phase of operation. Shell has
announced the construction of a PO/SM plant in Singapore, which is scheduled
for completion in 1997. Several other companies have been attempting to develop
a commercial PO process, and additional PO plants may eventually be built by
competitors. Based on published data relating to the PO market, the company
believes that it has 38 percent and Dow has 31 percent of the total worldwide
capacity for PO. No other producer is believed to have more than 5 percent of
worldwide PO capacity.
 
  The company competes with many polyols producers worldwide, including Dow and
Bayer AG. Based on published data, Dow is believed to have 25 percent of
worldwide polyols capacity while the company is believed to have 15 percent and
Bayer AG is believed to have 10 percent. No other polyols producer is believed
to have more than 7 percent of worldwide polyols capacity. In the majority of
 
                                       5
<PAGE>
 
flexible foam applications, such as furniture, bedding and automotive seating,
there is some competition for polyols from substitute materials.
 
  In January 1995, the company entered into a long-term arrangement for a
supply of TDI, an isocyanate, which is reacted with polyols to produce
flexible foams. The supply of TDI will enable the company to compete more
effectively with other suppliers who offer both polyols and TDI to customers.
 
  The company competes with many MTBE producers worldwide; the most
significant are Ibn Zahr (a joint venture 70 percent owned by Saudi Basic
Industries Corp.), and Texas Petrochemicals Company. Based on published data,
the company believes that it has 17 percent of the total worldwide capacity
for MTBE while Ibn Zahr is believed to have 6 percent and Texas Petrochemicals
Company is believed to have 5 percent. No other producer is believed to have
more than 4 percent of worldwide MTBE capacity. The company expects the rate
of MTBE capacity expansion by competitors to decline. MTBE may face increased
competition from substitute products such as ethanol.
 
  The company competes with several SM producers worldwide; among them are Dow
and Shell. Based on published data, Dow and Shell are each believed to have 10
percent of total worldwide SM capacity while the company is believed to have 8
percent. No other producer is believed to have more than 5 percent of
worldwide SM capacity.
 
  There can be no assurance that the company will not face additional
competition in the future.
 
PROPERTIES AND PRODUCTION FACILITIES
 
  The company's corporate and executive headquarters and its principal
research operations are located at Newtown Square, Pennsylvania. The company
leases the Newtown Square property from ARCO. See Item 13. The company's
European headquarters are located in leased facilities in Maidenhead, England,
and the company's Asia Pacific headquarters are located in leased facilities
in Hong Kong.
 
  Depending on location and market needs, the company's production facilities
can receive primary raw materials by pipeline, rail car, truck, barge, or ship
and can deliver finished products by pipeline, rail car, truck, barge,
isotank, or ship. The company charters ships and owns or charters barges,
leases isotanks and owns or leases rail cars for the dedicated movement of
interplant products, products to customers or terminals, or raw materials to
plants, as necessary. The company leases liquid bulk storage and warehouse
facilities at terminals in the Americas, in Europe, and in the Asia Pacific
region. In the Rotterdam outer harbor area, the company operates an on-site
butane storage tank, propylene spheres, pipeline connections, and a jetty that
accommodates deep-draft vessels.
 
  The following table shows the company's worldwide production capacity (in
millions of pounds per year, except where otherwise noted) for PO, TBA, SM and
certain key derivatives:
 
<TABLE>
<CAPTION>
                                     REGIONS
                          ------------------------------
                                           ASIA
   PRODUCT                AMERICAS EUROPE PACIFIC TOTAL
   -------                -------- ------ ------- ------
   <S>                    <C>      <C>    <C>     <C>
   PO                       2,315     980   310    3,605
   Polyols                    655     465   130    1,250
   PG                         520     340    --      860
   PGE                        110      --    --      110
   Butanediol                  75      --    --       75
   TBA                      2,870   2,395    --    5,265
   MTBE--Bbls/day          30,000  28,500    --   58,500
   SM                       2,525      --   740    3,265
   DYLITE (R)/DYLENE (R)      445      --    --      445
   DYLARK (R)                  70      --    --       70
</TABLE>
 
                                       6
<PAGE>
 
  Capacities shown are the production capacities that the company believes
could be obtained, as of December 31, 1994, based upon plant design and subject
to certain on-stream factors, product mix, and other variable factors.
Capacities shown include the full capacity of on-stream joint-venture
facilities. Plants can and have exceeded these capacities for extended periods
of time.
 
  In the United States, the company produces PO, TBA, PG, and PGE at the
Bayport, Texas plants and PO, SM, MTBE, polyols, and butanediol at the
Channelview, Texas plants. Polyols are also produced at the company's plants in
South Charleston and Institute, West Virginia, which are situated on leased
land. The company's polystyrenics plants are located in Monaca, Pennsylvania
and Painesville, Ohio.
 
  In Europe, the company produces PO, TBA, MTBE, and PG at plants located in
Rotterdam, the Netherlands and Fos-sur-Mer, France. In addition, polyols are
produced at plants located in Rieme, Belgium and Fos-sur-Mer, France. The
company has completed construction of a PGE plant with an expected annual rated
capacity of 154 million pounds at its Rotterdam facility. The company brought
the facility on-stream in February 1995.
 
  In the Asia Pacific region, the company's PO/SM plant, owned by Nihon
Oxirane, is located in Chiba, Japan. Polyols plants are located in Kaohsiung,
Taiwan and Anyer, West Java, Indonesia. The Anyer plant is owned by P.T. ARCO
Chemical Indonesia, an Indonesian joint venture with P.T.Gema Supra Abadi in
which the company, through a subsidiary, has a majority interest.
 
  The company also contracts for the manufacture of certain of its products,
from time to time, at third party facilities under processing and supply
agreements. Major agreements include contracts with producers located in both
Channelview and Corpus Christi, Texas under which the company has secured
additional MTBE capacity totaling 20,000 bbls/day. The production facility at
Corpus Christi, Texas has capability for either MTBE or ETBE production. In
January 1995, the company entered into long-term supply agreements with Rhone-
Poulenc for TDI. These agreements entitle the company to all of the TDI output
of the supplier's two plants in France with a combined capacity of
approximately 264 million pounds per year.
 
PATENTS, TRADE NAMES, AND TRADEMARKS
 
  ARCO has granted the company a license to use "ARCO" in its name and the ARCO
spark design as a logo. This license by ARCO has been granted on a royalty-free
basis, which is consistent with ARCO's practice of licensing its name and
design to its subsidiaries and affiliates. The company owns or has licensed
from ARCO various domestic and foreign trademarks.
 
  The company possesses a body of technical know-how, trade secrets, and United
States and foreign patents relating to its products, processes and the design
and operation of its plants, all of which are valuable to the company. The
company does not believe that the loss of any individual patent or trade secret
would have a material adverse effect on its business. The basic patents
relating to the company's PO, TBA, and SM process technologies, however, have
expired.
 
ENVIRONMENTAL MATTERS
 
  The company (together with the industry in which it operates) is subject to
federal, state, local, and foreign 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. The company and the industry are also subject to other
federal, state, local, and foreign environmental laws and regulations,
including those that require the company to remove or mitigate the effects of
the disposal or release of certain chemical substances at various sites. It is
impossible to predict precisely what effect these laws and regulations will
have on the company in the
 
                                       7
<PAGE>
 
future. Compliance with environmental laws and regulations could result in
significant capital expenditure requirements as well as other costs and
liabilities. Management believes, based upon its past experience and best
assessment of future events, that these environmental liabilities and costs
will be determined and incurred over an extended period of time, allowing the
company to fund such liabilities and costs through its operating cash flow,
and, therefore, that their impact would not be material in relation to the
company's consolidated financial position as of December 31, 1994. Depending
on the amounts of future operating results, the environmental liabilities to
be recorded in a given annual or quarterly period may, potentially, result in
charges that are material to the results of operations for that period. See
Item 3, "Legal Proceedings" and Note 12 of Notes to Consolidated Financial
Statements.
 
  It is the company's policy to comply with all environmental laws and
regulations. In some cases, compliance can be achieved only by capital
expenditures. For the past three years, the company's annual environmental-
related capital expenditures have ranged from $29 million to $46 million at
existing facilities. For the years 1995 and 1996, the company anticipates
environmental-related capital expenditures to range from $40 million to $45
million annually. These figures do not include any environmental-related
capital expenditures associated with construction of new facilities.
Environmental related-capital expenditures include the cost of projects to
reduce and/or eliminate pollution and contamination in the future and the cost
of modifications to the company's manufacturing facilities necessary to comply
with environmental laws and regulations. For the past three years, the
company's charges for estimated future expenses for the remediation of
previously contaminated properties either required or likely to be required in
the foreseeable future by government or third parties have averaged
approximately $10 million per year. The company's operating expenses also
include ongoing costs of controlling or disposing of pollutants. For 1994, the
company estimates that its operating expenses related to these ongoing costs
were approximately $45 million.
 
HUMAN RESOURCES
 
  At December 31, 1994, the company employed approximately 4,600 people
(exclusive of employees of unconsolidated joint ventures), of whom
approximately 170 were classified as temporary employees. The company believes
its relationships with its employees are satisfactory. Approximately 23
percent of the company's domestic employees are represented by local or
national unions. The company announced a corporate restructuring in November
1994 to reorganize its work force on a global basis. In connection with the
restructuring, approximately 130 people will be leaving the company. See Note
21 of Notes to Consolidated Financial Statements.
 
ITEM 3. LEGAL PROCEEDINGS
 
ENVIRONMENTAL MATTERS AND RELATED LITIGATION
 
  The company has completed a remedial investigation/feasibility study at the
French Ltd. Site (Texas) under the Comprehensive Environmental Response,
Compensation and Liability Act (CERCLA) and the Superfund Amendments and
Reauthorization Act of 1986. As a result of that study, the U.S. Environmental
Protection Agency (EPA) determined that bioremediation was the appropriate
remedy. ARCO and the company reached a settlement with the other potentially
responsible parties as to allocation of clean-up costs. A consent decree in
this regard was entered with the United States District Court for the Eastern
District of Texas. The selected remedy has been substantially implemented. The
company believes that the maximum remaining aggregate cost for the potentially
responsible parties to implement this remedy will be less than $10 million.
The company's allocated share of clean-up costs for this site is approximately
33 percent.
 
  The company has been a named defendant in a number of lawsuits brought by
several thousand plaintiffs relating to the French Ltd. Site. These suits
generally have alleged personal injury and/or property damage caused by
chemical waste allegedly sent to the site by the company and other defendants.
The company has resolved the majority of these lawsuits.
 
                                       8
<PAGE>
 
  In December 1993, the EPA issued a Unilateral Administrative Order (the
Order) to the company and other potentially responsible parties requiring
implementation of a remedial design/remedial action for the Turtle Bayou, Texas
CERCLA Site. The company has raised certain legal defenses against the
enforcement of the Order. Without waiving any of its defenses against the
Order, the company has reached an agreement in principle with certain other
potentially responsible parties to proceed with certain work at the site. In
January 1994, the EPA filed a complaint in the United States District Court for
the Eastern District of Texas seeking recovery of costs of removal and/or
remedial action allegedly incurred or to be incurred by the federal government.
On November 28, 1994, the company reached an agreement in principle with the
EPA to settle the cost recovery lawsuit. The company and ARCO have agreed (i)
to pay $1.1 million in reimbursement of past costs incurred by the federal
government and (ii) to perform remedial activities with respect to a portion of
the site. Site remediation is expected to take at least five years. The parties
are negotiating the terms of a consent decree to embody the settlement.
 
  The company is currently involved in administrative proceedings or lawsuits
relating to seven other CERCLA sites and may in the future be involved in
additional environmental assessments and clean-ups under these laws. The future
costs in connection with such matters are indeterminable due to such factors as
the unknown magnitude of clean-up costs, the unknown timing and extent of the
remedial actions which may be required and the determination of the company's
liability in proportion to the liability and financial resources of the other
potentially responsible parties.
 
  The company discovered that certain organic waste material is situated in the
soil and ground water at portions of its Monaca, Pennsylvania (Beaver Valley)
plant. The company commenced a feasibility study to determine the technology
required to remedy the conditions at the plant. In 1994, the company entered
into a Consent Order and Agreement (the "Consent Agreement") with the
Pennsylvania Department of Environmental Resources ("PADER") pursuant to which
the company and PADER agreed upon a work plan for testing and remedial process
design with regard to the conditions at the plant. Under the terms of the
Consent Agreement, the company paid civil penalties totalling $363,000 in 1994
(which included $300,000 agreed upon by the company and PADER in 1988 and
previously disclosed and civil penalties assessed for 1994 in connection with
plant conditions). In addition, the company must pay a penalty of $63,000 each
year until the commencement of active remediation at the plant, after which the
amount of such annual penalty shall be reduced based on the extent of
remediation commenced at the plant. The company has signed an agreement with
Beazer East, Inc., the successor to Koppers Inc. (the previous owner of the
Beaver Valley plant), whereby Beazer East, Inc. agreed to pay for approximately
50 percent of the cost of the remediation.
 
  In addition to the matters reported herein, from time to time the company and
its subsidiaries become aware of compliance matters relating to, or receive
notices from federal, state or local governmental entities of alleged
violations of, environmental, health and/or safety laws and regulations
pertaining to, among other things, the disposal or discharge of chemical
substances (including hazardous wastes). In some instances, these matters may
become the subject of administrative proceedings or lawsuits and may involve
monetary sanctions of $100,000 or more (exclusive of interest and costs). See
Items 1 and 2, "Business and Properties--Environmental Matters" and Note 12 of
Notes to Consolidated Financial Statements.
 
OTHER LITIGATION
 
  In addition, the company and its subsidiaries are involved in a number of
lawsuits, all of which have arisen in the ordinary course of the company's
business.
 
  The company is unable to predict the outcome of the foregoing matters, but
does not believe that the ultimate resolution of such matters will have a
material adverse effect on the consolidated financial statements of the
company.
 
ITEM 4.SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS
 
  No matters were submitted to a vote of security holders during the fourth
quarter of 1994.
 
                                       9
<PAGE>
 
                       EXECUTIVE OFFICERS OF THE COMPANY
 
  Set forth below are the executive officers of the company as of February 1,
1995.
 
<TABLE>
<CAPTION>
  NAME, AGE, AND PRESENT                    BUSINESS EXPERIENCE DURING PAST
 POSITION WITH THE COMPANY             FIVE YEARS AND PERIOD SERVED AS OFFICER(A)
 -------------------------             ------------------------------------------
 <S>                         <C>
 Alan R. Hirsig, 55          Mr. Hirsig was elected President and Chief Executive Officer
  President, Chief            on January 1, 1991. He was elected an officer of the company
  Executive Officer, and      on June 22, 1987 and a Director of the company on November
  Director                    14, 1989. Previously, Mr. Hirsig was President of the
                              company's European operations from July 1984 to December 1990
                              and a Senior Vice President of the company from July 1988 to
                              December 1990.

 Morris Gelb, 48             Mr. Gelb was elected an officer of the company on June 22,
  Vice President,             1987. He assumed his current position in September 1991. Pre-
  Environmental,              viously, he was Vice President, Research and Engineering from
  Engineering and             September 1986 to September 1991.
  Manufacturing Programs

 Michael G. Griffith, 53     Mr. Griffith was elected an officer of the company on May 9,
  Vice President, Research    1990. He assumed his current position on that date. Prior to
  and Development             joining the company, he was Vice President, Technology of Ow-
                              ens-Corning Fiberglas Corp. (building products and reinforce-
                              ments) from January 1989 to May 1990 and Vice President, Re-
                              search and Development of Owens-Corning Fiberglas Corp. from
                              1983 to January 1989.

 Robert J. Millstone, 51     Mr. Millstone was elected Vice President and General Counsel
  Vice President, General     of the company, effective January 1, 1995. Previously, he was
  Counsel, and Secretary      Associate General Counsel from January 1989 to December 1994.
                              He has been Secretary of the company since October 1990.

 Jack E. Oppasser, 54        Mr. Oppasser was elected an officer of the company on June 22,
  Senior Vice President       1987 and a Director of the company on July 10, 1991. He has
  and Director                been a Senior Vice President of the company since January
                              1991. He was President of the company's European operations
                              from January 1991 through December 1994. Previously, Mr.
                              Oppasser was Vice President, Worldwide Business Management
                              from November 1989 to December 1990 and Vice President, Sales
                              and Marketing from August 1988 to November 1989.

 Marvin O. Schlanger, 46     Mr. Schlanger was elected an officer of the company on Septem-
  Executive Vice              ber 1, 1987 and a Director of the company on November 14,
  President, Chief            1989. He assumed his current position in November 1994. Pre-
  Operating Officer, and      viously, he was Senior Vice President of the company and
  Director                    President of ARCO Chemical Americas Company from August 1992
                              to November 1994, Senior Vice President and Chief Financial
                              Officer from October 1989 to August 1992 and Vice President,
                              Worldwide Business Management from September 1988 to Septem-
                              ber 1989.
</TABLE>
 
 
                                       10
<PAGE>
 
<TABLE>
<CAPTION>
  NAME, AGE, AND PRESENT                    BUSINESS EXPERIENCE DURING PAST
 POSITION WITH THE COMPANY             FIVE YEARS AND PERIOD SERVED AS OFFICER(A)
 -------------------------             ------------------------------------------
 <S>                         <C>
 John A. Shaw, 46            Mr. Shaw was elected an officer of the company on May 13,
  Vice President and          1993. He assumed his current position in January 1995. Previ-
  Controller                  ously, he was Vice President and Treasurer of ARCO Chemical
                              Company from July 1993 to January 1995 and Vice President,
                              Planning and Control of the company's European operations
                              from July 1987 to July 1993.

 Walter J. Tusinski, 47      Mr. Tusinski was elected an officer and a Director of the com-
  Senior Vice President,      pany on September 1, 1992. He assumed his current position on
  Chief Financial Officer,    that date. Previously, he served as Vice President, New Busi-
  and Director                ness Ventures of ARCO International Oil and Gas Company from
                              September 1990 to August 1992 and Vice President, Planning
                              and Control of ARCO Products Company from October 1986 to Au-
                              gust 1990.

 Francis W. Welsh, 51        Mr. Welsh was elected an officer of the company on June 22,
  Vice President, Human       1987. He has held his current position since August 1983.
  Resources                   Previously, he was Manager of Compensation and Manager of
                              Personnel Resources and Development, Corporate Employee Rela-
                              tions of ARCO from September 1980 to May 1983.
</TABLE>
- --------
(a) The By-Laws of the company provide that each officer shall hold office
    until his successor is elected or appointed and qualified, or until his
    death or resignation, or his removal by the Board of Directors.

                                      11
<PAGE>
 
                                    PART II
 
ITEM 5.  MARKET FOR REGISTRANT'S COMMON STOCK AND RELATED STOCKHOLDER MATTERS
 
  The common stock is listed on the New York Stock Exchange. The reported high
and low sales prices of the common stock on the New York Stock Exchange (New
York Stock Exchange Composite Tape) from January 1, 1993 through February 17,
1995, inclusive, were:
 
<TABLE>
<CAPTION>
     PERIOD                                                         HIGH   LOW
     ------                                                         ----   ---
     <S>                                                           <C>    <C>
     1993
       First Quarter.............................................. 45     39 1/4
       Second Quarter............................................. 47 1/4 40 3/4
       Third Quarter.............................................. 44 1/8 39 7/8
       Fourth Quarter............................................. 44 3/8 40 1/2
     1994
       First Quarter.............................................. 50 1/2 43 1/8
       Second Quarter............................................. 48 5/8 43 1/4
       Third Quarter.............................................. 51     44 3/8
       Fourth Quarter............................................. 49 7/8 43 5/8
     1995
       First Quarter (through February 17)........................ 45     41 1/4
</TABLE>
 
  On February 17, 1995, the closing price of the common stock was $42 1/4.
 
  As of December 31, 1994, the number of holders of record of common stock of
the company was 1,634.
 
  The company has paid quarterly cash dividends as follows:
 
<TABLE>
<CAPTION>
                                 1ST QUARTER 2ND QUARTER 3RD QUARTER 4TH QUARTER
                                 ----------- ----------- ----------- -----------
<S>                              <C>         <C>         <C>         <C>
1993............................   $0.625      $0.625      $0.625      $0.625
1994............................   $0.625      $0.625      $0.625      $0.625
1995............................   $0.625*
</TABLE>
- --------
* On January 26, 1995, a dividend of $0.625 per share was declared on the
 common stock, payable on March 3, 1995 to stockholders of record on February
 17, 1995.
 
  The current quarterly dividend rate for the common stock is $0.625 per share.
The declaration and payment of future dividends and the amount thereof will be
dependent on the company's results of operations, financial condition, cash
requirements, and future prospects as well as on other factors deemed relevant
by the Board of Directors. It is the current intention of the company to
declare and pay quarterly cash dividends on its common stock.
 
                                       12
<PAGE>
 
ITEM 6.  SELECTED FINANCIAL DATA
 
  The following table sets forth selected financial information for the
company:
 
<TABLE>
<CAPTION>
                                             YEAR ENDED DECEMBER 31,
                                   --------------------------------------------
                                     1994     1993     1992     1991     1990
                                   -------- -------- -------- -------- --------
                                   (MILLIONS OF DOLLARS, EXCEPT PER SHARE DATA)
<S>                                <C>      <C>      <C>      <C>      <C>
Sales and other operating reve-
 nues.............................   $3,423   $3,192 $  3,100   $2,837   $2,830
Costs and other operating ex-
 penses...........................    2,586    2,453    2,343    2,283    2,129
Income before changes in account-
 ing principles...................      269      214      197      188      308
Net income(1)(2)..................      269      214      195      188      351
Total assets......................    3,737    3,502    3,599    3,676    3,739
Long-term debt, including current
 portion..........................      913      905    1,102    1,173    1,220
Dividends per common share........     2.50     2.50     2.50     2.50     2.50
Earnings per share before changes
 in accounting principles.........     2.80     2.23     2.05     1.96     3.21
Earnings per share(1)(2)..........     2.80     2.23     2.03     1.96     3.66
</TABLE>
- --------
(1) Net income in 1992 includes a charge of $2 million, or $.02 per share, for
    the net cumulative effect of changes in accounting principles, and a $56
    million charge, or $.58 per share, related to the divestiture of a joint
    venture in Korea.
(2) The 1990 impact on net income from the cumulative effect of the change in
    accounting for income taxes was $43 million or $.45 per share.
 
ITEM 7.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
         OF OPERATIONS
 
  This discussion should be read in connection with the information contained
in the Consolidated Financial Statements and the Notes thereto.
 
PRODUCT VOLUMES
 
  Sales and processing volumes of the company's key product, propylene oxide
(PO), its two co-products, tertiary butyl alcohol (TBA) and styrene monomer
(SM), and their derivatives are set forth in the following table for the
periods indicated. Methyl tertiary butyl ether (MTBE) is a key derivative of
TBA used in oxygenated fuels and as an octane enhancer.
 
<TABLE>
<CAPTION>
                                                                  YEAR ENDED
                                                                 DECEMBER 31,
                                                               -----------------
                                                               1994  1993  1992
                                                               ----- ----- -----
                                                                  (MILLIONS)
<S>                                                            <C>   <C>   <C>
PO and derivatives (pounds)................................... 3,699 3,356 3,055
TBA and derivatives (gallons)................................. 1,004 1,164 1,092
SM and derivatives (pounds)................................... 2,496 2,084 1,434
</TABLE>
 
Production levels of co-products are based upon the market economics of the co-
products as well as the demand for PO. The company manufactures and markets its
products in three major world regions: the Americas, Europe and Asia Pacific.
 
                                       13
<PAGE>
 
RESULTS OF OPERATIONS
 
 Net Income
 
  Net income for 1994 was $269 million, or $2.80 per share, compared with $214
million, or $2.23 per share, in 1993 and $195 million, or $2.03 per share, in
1992. Net income for these years included nonrecurring items, on an after-tax
basis, as follows: a $19 million corporate restructuring charge and a $12
million benefit from insurance proceeds in 1994; a $10 million loss on early
debt retirement and the benefit of a low effective income tax rate in 1993; and
a $56 million charge from the divestiture of a Korean joint venture in 1992.
 
  Net income in 1994 increased over 1993 primarily due to higher PO and
derivatives volumes and higher SM margins and volumes, partly offset by the
effects of a weaker MTBE market. The 1994 period also benefitted from lower
interest expense. Net income, excluding nonrecurring items, decreased in 1993
versus 1992 as lower European MTBE margins, lower overall PO and derivative
margins and higher fixed costs more than offset the benefit from increased
sales and processing volumes.
 
 Revenues and Gross Profit
 
  Sales and other operating revenues were $3,423 million in 1994, $3,192
million in 1993 and $3,100 million in 1992. Revenues increased seven percent in
1994 versus 1993 with the majority of the increase attributable to higher
average sales prices. Revenues also benefitted from higher volumes for PO and
SM and their derivatives, partly offset by lower MTBE volumes. Revenues
increased three percent in 1993 over 1992 as the benefit from higher 1993 sales
and processing volumes more than offset lower 1993 sales prices. The decrease
in prices was primarily due to the weak European economy, including the weak
premium gasoline market and the negative effect of a stronger U.S. dollar on
European sales.
 
  Gross profit increased $98 million to $837 million in 1994 from $739 million
in 1993. The 1994 gross profit improvement primarily resulted from higher
volumes for PO and derivatives and higher margins and volumes for SM. These
improvements were partly offset by the impact of lower U.S. MTBE volumes. Plant
turnaround expenses in 1994, which included two major planned turnarounds, were
comparable to 1993, which included three planned turnarounds.
 
  Gross profit of $739 million in 1993 decreased $18 million from $757 million
in 1992. In addition to lower 1993 European MTBE margins, 1993 gross profit was
reduced by higher plant fixed costs, primarily due to a full year of operation
of the new PO/SM II plant and higher maintenance expense, including a $22
million increase resulting from turnarounds at three plants. Benefits from
higher 1993 sales volumes substantially offset these negative impacts.
 
 PO and Derivatives
 
  PO and derivatives volumes in 1994 increased 10 percent versus 1993 due to
the strong U.S. economy, increased market penetration by propylene glycol-based
deicers and coolants, and the recovering economy in Europe. All three regions
showed volume improvement over 1993. Overall, PO and derivatives margins in
1994 increased slightly compared to 1993.
 
  PO and derivatives volumes in 1993 increased 10 percent versus 1992
principally due to improvement in the domestic economy, although all three
regions showed volume improvement, particularly in derivatives. PO and
derivatives margins decreased in 1993 compared to 1992. The combined effects of
lower margins associated with new product introductions and a weaker European
economy offset margin increases resulting from the ongoing improvement in the
domestic economy.
 
 
                                       14
<PAGE>
 
 TBA and Derivatives
 
  TBA and derivatives sales volumes decreased 14 percent in 1994 versus 1993
primarily due to lower U.S. MTBE volumes. The U.S. MTBE volumes reflected lower
contractual sales volumes and flat demand for MTBE as an oxygenate coupled with
increased worldwide capacity. In addition, demand for MTBE in world octane
markets was negatively affected by its higher price. Overall, TBA and
derivatives margins increased moderately in 1994 versus 1993. MTBE margin
improvements in the U.S., resulting from higher U.S. MTBE prices, were
substantially offset by European margin declines attributable to rising
methanol costs and a weak octane market.
 
  TBA and derivatives sales volumes increased seven percent in 1993 versus 1992
primarily due to higher contractual MTBE sales volumes. TBA and derivatives
margins in 1993 declined versus 1992 as margin improvements in the U.S. were
more than offset by the declines in Europe. Margins improved in the U.S. as
more volume was sold under long-term contracts. The lower margins in Europe
reflected continuing weakness in octane demand and gasoline prices in 1993.
 
  On June 30, 1994, the Environmental Protection Agency (EPA) promulgated
regulations under the Clean Air Act requiring that 15 percent in 1995, and 30
percent thereafter, of the oxygenate content in reformulated gasoline be
supplied by oxygenates such as ethanol and ethyl tertiary butyl ether (ETBE),
which are derived from renewable feedstocks. ETBE uses ethanol as a feedstock.
In September, 1994, the U.S. Court of Appeals for the District of Columbia
granted a temporary stay of the EPA regulations. The regulations, if
implemented, may, in the long term, decrease demand for MTBE and increase
demand for other oxygenates derived from renewable feedstocks, including ETBE.
The company is capable of producing both MTBE and ETBE.
 
 SM and Derivatives
 
  SM and derivatives margins improved in 1994 versus 1993 due to higher average
SM prices attributable to increased worldwide demand and a series of planned
and unplanned outages at producers' plants. SM and derivatives sales and
processing volumes in 1994 increased 20 percent over 1993 primarily due to
higher SM export sales, reflecting the increased worldwide demand, and higher
SM contractual offtakes by the limited partners in the PO/SM II plant.
 
  SM and derivatives volumes in 1993 increased 45 percent over 1992 due to
higher SM contractual offtakes by the limited partners in the PO/SM II plant,
higher SM exports to customers in Asia Pacific markets and increased domestic
demand. SM and derivatives margins, up slightly from 1992, remained low in 1993
as a result of excess industry supply.
 
 Other
 
  In the fourth quarter 1994, management adopted a corporate restructuring plan
which will reorganize the company's work force on a global basis to better
match the increasingly global nature of the marketplace. Under the new
organization, each key product line will have worldwide, rather than regional,
profit responsibility. The restructuring should increase future operational
efficiency and will result in approximately 130 people leaving the company. The
restructuring will be substantially completed during 1995. The plan resulted in
a pretax charge of $30 million, primarily for costs associated with personnel
reductions. Approximately one half of the charge will be paid out within one
year, primarily for severance benefits. The remainder represents enhanced
retirement and postretirement benefits, which will be paid out over a longer
period of time.
 
  Interest expense was $85 million in 1994, $105 million in 1993 and $79
million in 1992. Interest expense declined in 1994 from 1993 due to lower debt
levels and lower interest rates on certain bank borrowings. In 1992, $37
million of interest related to the construction of the PO/SM II plant was
capitalized whereas capitalized interest was negligible in 1994 and 1993.
 
                                       15
<PAGE>
 
  Other income (expense), net, was $26 million in 1994, $(9) million in 1993
and was negligible in 1992. Other income (expense), net in 1994 included an $18
million pretax benefit from an insurance settlement related to the 1990
Channelview plant incident. The decrease in 1993 reflects a pretax loss of $13
million on early retirement of debt.
 
  The company's effective income tax rate was 35.3 percent in 1994, 31.2
percent in 1993, and 38.8 percent in 1992. The 1994 rate increased versus 1993,
which benefitted from the recognition of foreign deferred tax assets. The 1992
rate was higher due to the charge related to the divestiture of a Korean joint
venture, which did not generate a tax benefit in 1992.
 
FINANCIAL CONDITION
 
 Liquidity and Capital Resources
 
  As of December 31, 1994, the company had $144 million in cash and cash
equivalents compared with $42 million at December 31, 1993.
 
  The Consolidated Statement of Cash Flows for the year ended December 31, 1994
shows that net cash flows provided by operating activities were $565 million,
whereas net cash flows used by investment and financing activities were $176
million and $288 million, respectively.
 
  Investment activities in 1994 included expenditures for plant and equipment
of $186 million, which was comparable to the $181 million spent in 1993. A
significant portion of the 1994 and 1993 capital programs were devoted to
environmental, health and safety projects as well as PO derivative capacity
expansions at existing facilities. The company's 1995 spending budget for plant
and equipment is $195 million.
 
  In January 1995, the company entered into a long-term arrangement with Rhone-
Poulenc (RP) for a supply of toluene di-isocyanate (TDI). Adding TDI to the
list of products sold by the company complements the company's existing line of
polyols products and strengthens the company's position in the polyurethanes
market. Effective January 1, 1995, the company is entitled to the entire TDI
output of RP's two plants in France, which have a combined annual capacity of
approximately 264 million pounds. The company made an initial payment of $80
million at closing for capacity reservation fees, related inventory and other
rights and costs. The company is obligated to pay additional capacity
reservation fees and purchase minimum quantities of TDI for periods of up to 15
years. The company's projected TDI sales volumes exceed the minimum purchase
quantities, and the company expects to fund the obligations under this
arrangement through cash flows from increased sales revenues.
 
  The company paid dividends totalling $240 million in 1994, including a $.625
per share dividend, totalling $60 million, during the quarter ended December
31, 1994. On January 26, 1995, the Board of Directors declared a dividend of
$.625 per share on the company's common stock, payable March 3, 1995.
 
  The company maintains a credit agreement under which it can borrow amounts of
up to $300 million. At December 31, 1994, the company had no outstanding
borrowings against the credit agreement, which is used to back up the company's
commercial paper borrowing.
 
  It is expected that future cash requirements for capital expenditures,
dividends and debt repayments will be met by cash generated from operating
activities and additional borrowing.
 
 Effects of Inflation
 
  Based on the age of the company's fixed assets, it is estimated that the
replacement cost of those assets is greater than the historical cost reflected
in the company's financial statements. Accordingly,
 
                                       16
<PAGE>
 
the company's depreciation and amortization expense for the three years ended
December 31, 1994, would be greater if the expense were stated on a current
cost basis.
 
 Risk Management
 
  The company uses financial derivative instruments to reduce certain types of
financial risk. Use of derivatives is limited to simple, non-leveraged
instruments placed with major financial institutions whose creditworthiness is
monitored. Company policy provides restrictions on concentrating credit risk
in any one institution. Hedging strategies and transactions are reviewed and
approved by management before being implemented. Monthly market valuations and
quarterly sensitivity analyses are performed to monitor the effectiveness of
the company's risk management program.
 
  To minimize the effects of foreign currency rate and interest rate
fluctuations, the company enters into the following activities using financial
derivative instruments: (1) foreign currency forward contracts, option
contracts and swap contracts to reduce the risk of foreign currency
fluctuations on future cash flows, and, to a lesser extent, (2) interest rate
swaps to minimize the impact of fluctuating interest rates on the company's
outstanding floating rate debt.
 
 Feedstock Costs
 
  See "Raw Materials" included in Items 1 and 2.
 
 Environmental
 
  The company is subject to federal, state, local, and foreign environmental
laws and regulations that require the company to remove or mitigate the effect
on the environment of the disposal or release of certain chemical substances
at various sites. The company is currently participating in environmental
assessments, remedial investigations/feasibility studies (RI/FS), and
remediation at a number of sites under these laws and regulations and may in
the future be involved in additional environmental assessments and cleanups.
The company continues to estimate the amount of these costs in periodically
establishing reserves based on progress made in determining the magnitude,
method and timing of remedial actions required by governmental authorities and
the amount of the company's liability in proportion to the liability and
financial resources of the other responsible parties.
 
  The company's reserve takes into consideration federal CERCLA and comparable
state sites as well as other clean-up sites, including operating facilities.
Reflected in costs and other operating expenses for 1994 is a $13 million
pretax charge for estimated future environmental clean-up costs compared with
$12 million in 1993 and $6 million in 1992. These charges do not reflect any
potential insurance proceeds. At December 31, 1994, the company's reserve
totaled $51 million. A significant portion of the reserve is related to the
company's Beaver Valley plant. The remainder is related to other sites for
amounts ranging from $1 million to $7 million per site. Substantially all
amounts accrued are expected to be paid out over the next five to ten years.
See Note 12 of Notes to Consolidated Financial Statements for discussion of
uncertainties relating to future clean-up costs associated with CERCLA and
comparable state sites.
 
  The company is currently performing RI/FS at certain of its production
facilities in the U.S. and Europe, which are expected to be completed within
the next several years. As the scope of the company's environmental
contingencies becomes more clearly defined, it is possible that amounts in
excess of those already reserved may be necessary. Management believes, based
upon its past experience and best assessment of future events, that these
environmental liabilities and costs will be determined and incurred over an
extended period of time, allowing the company to fund such liabilities and
costs through its operating cash flow, and, therefore, that their impact would
not be material in relation to the company's consolidated financial position
as of December 31, 1994. Depending on the amounts of future operating results,
the environmental liabilities to be recorded in a given annual or quarterly
period may, potentially, result in charges that are material to the results of
operations for that period.
 
                                      17
<PAGE>
 
ITEM 8.FINANCIAL STATEMENTS
 
                   INDEX TO CONSOLIDATED FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                              ARCO CHEMICAL COMPANY                     PAGE
                                                                        ----
<S>                                                                      <C>
 CONSOLIDATED FINANCIAL STATEMENTS
    Report of Independent Accountants..................................  19
    Consolidated Statements of Income for the Years Ended December 31, 
     1994, 1993, and 1992..............................................  20
    Consolidated Balance Sheets as of December 31, 1994 and 1993.......  21
    Consolidated Statements of Cash Flows for the Years Ended 
     December 31, 1994, 1993, and 1992.................................  22
    Consolidated Statements of Stockholders' Equity for the Years
     Ended December 31, 1994, 1993, and 1992...........................  23
    Notes to Consolidated Financial Statements.........................  24
</TABLE>
 
                                       18
<PAGE>
 
                       REPORT OF INDEPENDENT ACCOUNTANTS
 
To the Stockholders and Board of Directors of ARCO Chemical Company
 
  We have audited the consolidated financial statements of ARCO Chemical
Company and Subsidiaries listed in the index on page 18 of this Form 10-K.
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 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 provide 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 ARCO Chemical
Company and Subsidiaries as of December 31, 1994 and 1993, and the consolidated
results of their operations and their cash flows for each of the three years in
the period ended December 31, 1994 in conformity with generally accepted
accounting principles.
 
  As discussed in Notes 2, 10 and 14 to the consolidated financial statements,
the Company changed its method of accounting for income taxes and
postretirement benefits other than pensions in 1992.
 
                                          Coopers & Lybrand L.L.P.
 
2400 Eleven Penn Center 
Philadelphia, Pennsylvania 
February 10, 1995
 
                                       19
<PAGE>
 
                             ARCO CHEMICAL COMPANY
 
                       CONSOLIDATED STATEMENTS OF INCOME
             FOR THE YEARS ENDED DECEMBER 31, 1994, 1993, AND 1992
 
                  (MILLIONS OF DOLLARS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                          1994    1993    1992
                                                         ------  ------  ------
<S>                                                      <C>     <C>     <C>
Sales and other operating revenues:
  Unrelated parties....................................  $3,267  $2,996  $2,988
  Related parties......................................     156     196     112
                                                         ------  ------  ------
  Total revenues.......................................   3,423   3,192   3,100
Costs and other operating expenses (includes costs of
 $85 in 1994, $135 in 1993, and $86 in 1992, of related
 parties sales)........................................   2,586   2,453   2,343
                                                         ------  ------  ------
  Gross profit.........................................     837     739     757
Selling, general and administrative expenses...........     256     242     233
Research and development...............................      76      72      67
Restructuring costs....................................      30      --      --
                                                         ------  ------  ------
  Operating income.....................................     475     425     457
Loss on asset disposition..............................      --      --     (56)
Interest expense.......................................     (85)   (105)    (79)
Other income (expense), net............................      26      (9)     --
                                                         ------  ------  ------
  Income before income taxes and cumulative effect of
   changes in accounting principles....................     416     311     322
Provision for income taxes.............................     147      97     125
                                                         ------  ------  ------
  Income before cumulative effect of changes in
   accounting principles...............................     269     214     197
Cumulative effect of changes in accounting principles
 for:
  Postretirement benefits (net of $13 of income taxes).      --      --     (20)
  Income taxes.........................................      --      --      18
                                                         ------  ------  ------
  Net income...........................................  $  269  $  214  $  195
                                                         ======  ======  ======
EARNINGS PER COMMON SHARE:
Income before cumulative effect of changes in
 accounting principles.................................  $ 2.80  $ 2.23  $ 2.05
Cumulative effect of changes in accounting principles
 for:
  Postretirement benefits..............................      --      --    (.21)
  Income taxes.........................................      --      --     .19
                                                         ------  ------  ------
Net income.............................................  $ 2.80  $ 2.23  $ 2.03
                                                         ======  ======  ======
</TABLE>
 
                            See accompanying notes.
 
                                       20
<PAGE>
 
                             ARCO CHEMICAL COMPANY
 
                          CONSOLIDATED BALANCE SHEETS
                           DECEMBER 31, 1994 AND 1993
 
                             (MILLIONS OF DOLLARS)
 
                                     ASSETS
 
<TABLE>
<CAPTION>
                                                                  1994    1993
                                                                 ------  ------
<S>                                                              <C>     <C>
Current assets:
  Cash and cash equivalents....................................  $  144  $   42
  Accounts receivable..........................................     549     451
  Accounts receivable--related parties.........................      16      11
  Inventories..................................................     397     417
  Prepaid expenses and other current assets....................      18      22
                                                                 ------  ------
  Total current assets.........................................   1,124     943
Investments and long-term receivables..........................      97      84
Property, plant and equipment, net.............................   2,221   2,173
Deferred charges and other assets (net of accumulated amortiza-
 tion of $247 in 1994 and $233 in 1993)........................     295     302
                                                                 ------  ------
  Total assets.................................................  $3,737  $3,502
                                                                 ======  ======

                      LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Notes payable................................................  $   23  $   54
  Long-term debt due within one year...........................      15      17
  Accounts payable.............................................     208     169
  Accounts payable--related parties............................      34      28
  Taxes payable................................................      66      28
  Other accrued liabilities....................................     199     191
                                                                 ------  ------
  Total current liabilities....................................     545     487
                                                                 ------  ------
Long-term debt.................................................     898     888
Other liabilities and deferred credits.........................     142     103
Deferred income taxes..........................................     369     325
Minority interest..............................................     124     123
Stockholders' equity:
  Common stock, $1 par value; authorized 250,000,000 shares;
   99,550,001 issued; outstanding 96,085,201 (1994), 95,998,701
   (1993)......................................................     100     100
  Additional paid-in capital...................................     864     864
  Retained earnings............................................     732     703
  Foreign currency translation.................................      70      19
  Treasury stock, at cost (shares: 3,464,800, 1994; 3,551,300,
   1993).......................................................    (107)   (110)
                                                                 ------  ------
  Total stockholders' equity...................................   1,659   1,576
                                                                 ------  ------
  Total liabilities and stockholders' equity...................  $3,737  $3,502
                                                                 ======  ======
                                                                 
</TABLE>
 
                            See accompanying notes.
 
                                       21
<PAGE>
 
                             ARCO CHEMICAL COMPANY
 
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
             FOR THE YEARS ENDED DECEMBER 31, 1994, 1993, AND 1992
 
                             (MILLIONS OF DOLLARS)
 
<TABLE>
<CAPTION>
                                                           1994   1993   1992
                                                           -----  -----  -----
<S>                                                        <C>    <C>    <C>
Cash flows from operating activities
  Net income.............................................. $ 269  $ 214  $ 195
  Adjustments to reconcile net income to net cash provided
   by operating activities:
    Depreciation and amortization.........................   235    223    199
    Deferred income taxes.................................    27     43     54
    Loss on asset disposition.............................    --     --     56
    Restructuring costs...................................    30     --     --
    Provision for environmental liabilities...............    13     12      6
    Equity in net (income) loss of affiliates.............    (2)     2     18
    Dividends received....................................    --     --     12
    Net change in accounts receivable.....................   (88)   (49)    55
    Net change in other receivables, inventories, accounts
     and other payables...................................   112    (24)   (58)
    Other.................................................   (31)     3    (24)
                                                           -----  -----  -----
  Net cash provided by operating activities...............   565    424    513
                                                           -----  -----  -----
Cash flows from investment activities
  Capital expenditures....................................  (186)  (181)  (295)
  Proceeds from asset sales...............................    22     69     29
  Net proceeds from short-term investments ...............    --      9     69
  Increase in deferred charges............................    (9)   (10)   (20)
  Investments and long-term receivables...................    --     (2)   (39)
  Other...................................................    (3)    14     --
                                                           -----  -----  -----
  Net cash used in investment activities..................  (176)  (101)  (256)
                                                           -----  -----  -----
Cash flows from financing activities
  Dividends paid..........................................  (240)  (240)  (240)
  Early debt extinguishment...............................    --   (135)    --
  Net (repayment of) proceeds from notes payable .........   (33)    21     35
  Repayment of long-term debt.............................   (18)   (57)   (60)
  Additions to long-term debt.............................    --     --      7
  Other...................................................     3     (3)    13
                                                           -----  -----  -----
  Net cash used in financing activities...................  (288)  (414)  (245)
                                                           -----  -----  -----
Effect of exchange rate changes on cash...................     1     (2)     1
                                                           -----  -----  -----
Net increase (decrease) in cash and cash equivalents......   102    (93)    13
Cash and cash equivalents at beginning of year............    42    135    122
                                                           -----  -----  -----
Cash and cash equivalents at end of year.................. $ 144  $  42  $ 135
                                                           =====  =====  =====
</TABLE>
 
                            See accompanying notes.
 
                                       22
<PAGE>
 
                             ARCO CHEMICAL COMPANY
 
                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
             FOR THE YEARS ENDED DECEMBER 31, 1994, 1993, AND 1992
 
                  (MILLIONS OF DOLLARS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                ADDITIONAL            FOREIGN
                                 COMMON STOCK    PAID-IN   RETAINED  CURRENCY
                                ISSUED TREASURY  CAPITAL   EARNINGS TRANSLATION
                                ------ -------- ---------- -------- -----------
<S>                             <C>    <C>      <C>        <C>      <C>
Balance December 31, 1991
 (99,550,001 shares issued;
 3,665,483 treasury shares)....  $100   $(113)     $864     $ 774      $ 71
Net income.....................    --      --        --       195        --
Cash dividends ($2.50 per
 share)........................    --      --        --      (240)       --
Foreign currency translation...    --      --        --        --       (22)
Reissuance of 42,533 treasury
 shares upon exercise of stock
 options.......................    --       1        --        --        --
                                 ----   -----      ----     -----      ----
Balance December 31, 1992
 (99,550,001 shares issued;
 3,622,950 treasury shares)....   100    (112)      864       729        49
Net income.....................    --      --        --       214        --
Cash dividends ($2.50 per
 share)........................    --      --        --      (240)       --
Foreign currency translation...    --      --        --        --       (30)
Reissuance of 71,650 treasury
 shares upon exercise of stock
 options.......................    --       2        --        --        --
                                 ----   -----      ----     -----      ----
Balance December 31, 1993
 (99,550,001 shares issued;
 3,551,300 treasury shares)....   100    (110)      864       703        19
Net income.....................    --      --        --       269        --
Cash dividends ($2.50 per
 share)........................    --      --        --      (240)       --
Foreign currency translation...    --      --        --        --        51
Reissuance of 86,500 treasury
 shares upon exercise of stock
 options.......................    --       3        --        --        --
                                 ----   -----      ----     -----      ----
Balance December 31, 1994
 (99,550,001 shares issued;
 3,464,800 treasury shares)....  $100   $(107)     $864     $ 732      $ 70
                                 ====   =====      ====     =====      ====
</TABLE>
 
 
                            See accompanying notes.
 
                                       23
<PAGE>
 
                             ARCO CHEMICAL COMPANY
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
1.  FORMATION OF THE COMPANY
 
  On June 9, 1987, Atlantic Richfield Company (ARCO) transferred substantially
all the assets and liabilities of the oxygenates and polystyrenics businesses
of the then ARCO Chemical Division to ARCO Chemical Company (the company) in
exchange for 80,000,001 shares of common stock. On October 5, 1987, the company
completed an initial public offering of 19,550,000 shares of common stock.
ARCO's 80,000,001 shares represented approximately 83.3 percent of the
outstanding shares of common stock at December 31, 1994.
 
2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
  Basis of Presentation--The consolidated financial statements include the
accounts of the company and its majority-owned subsidiaries. Investments in
affiliates (20 percent to 50 percent owned) are accounted for under the equity
method. All significant intercompany transactions have been eliminated in
consolidation. Certain amounts in 1993 and 1992 have been reclassified for
comparative purposes.
 
  Cash Equivalents--Cash equivalents consist of highly liquid investments, such
as time deposits, certificates of deposit and marketable securities other than
equity securities, maturing within three months of purchase. Cash equivalents
are carried at cost, which approximates market, and are classified as held-to-
maturity.
 
  Property, Plant and Equipment--Property, plant and equipment are depreciated
on a straight-line method over their estimated useful lives. Upon disposition,
residual cost less salvage is included in current income. Maintenance and
repairs are expensed and betterments are capitalized.
 
  Deferred Charges--Deferred charges are carried at cost and consist primarily
of the value assigned to acquired technology. These assets are being amortized
on a straight-line method over their estimated useful lives.
 
  Environmental Expenditures--Environmental expenditures that relate to current
operations are expensed or capitalized, depending upon their future economic
benefit. Expenditures that result from the remediation of an existing condition
caused by past operations are expensed. Liabilities are recognized for remedial
activities when remediation is probable and the costs can be reasonably
estimated.
 
  Postretirement Benefits Other Than Pensions--Effective January 1, 1992, the
company adopted Statement of Financial Accounting Standards (SFAS) No. 106,
"Employers Accounting for Postretirement Benefits Other Than Pensions," on the
immediate recognition basis. Under this standard, the company accrues the
actuarially determined costs of postretirement benefits during the years that
the employee renders the necessary service. Previously, the company expensed
these costs when incurred. See Note 14.
 
  Income Taxes--The company's results of operations are included in the
consolidated U.S. federal income tax return and unitary state returns of ARCO.
Income tax expense in the consolidated financial statements is computed on a
stand-alone return basis pursuant to a Tax Sharing Agreement. Any resulting
current tax liability or refund is settled with ARCO, consistent with the Tax
Sharing Agreement. State income tax expense is computed on a stand-alone return
basis using the applicable tax rates for both unitary and non-unitary states'
filings.
 
 
                                       24
<PAGE>
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES--(CONTINUED)
 
  Effective January 1, 1992, the company adopted SFAS No. 109, "Accounting for
Income Taxes," whereby deferred taxes are computed under the liability method
rather than the deferred method. Additionally, SFAS No. 109 increases the
ability to recognize deferred tax assets by permitting the anticipation of
future income. See Note 10.
 
3.  RELATED PARTY TRANSACTIONS AND COST ALLOCATIONS
 
  Effective July 1, 1987, the company and ARCO (including ARCO subsidiaries)
entered into a series of agreements that included, among other things,
purchase, exchange and processing agreements, product sales agreements,
operational services agreements, and an administrative services agreement.
 
  Certain of these agreements were between the company and the Lyondell
Petrochemical Company, then a division of ARCO (the Lyondell Division).
Effective July 1, 1988, ARCO transferred substantially all the assets and
liabilities of the Lyondell Division to Lyondell Petrochemical Company
(Lyondell), a wholly owned subsidiary of ARCO. On January 25, 1989, ARCO
completed the sale to the public of a majority interest in Lyondell. Currently
ARCO's interest in Lyondell is 49.9 percent. In 1994, ARCO issued Exchangeable
Notes due 1997, which, at ARCO's option, can be exchanged at maturity into
Lyondell common stock or cash of equal value. If ARCO elects to deliver shares
of Lyondell common stock at maturity, ARCO's equity interest in Lyondell will
be substantially reduced or eliminated. Lyondell continues to be treated by the
company as a related party.
 
  The purchase, exchange, and processing agreements are principally for
methanol, benzene, ethylene, propylene, and MTBE. Other purchases from ARCO and
Lyondell principally include normal butane, isobutane, isobutylene, nonenes and
tetramers, natural gas and certain butanediol feedstocks. Product sales include
sales by the company to ARCO and Lyondell of MTBE and propane. In 1991, the
company entered into long-term sales agreements with ARCO providing for
delivery of fixed quantities of MTBE. The operational services agreements are
for various plant services performed by ARCO and Lyondell. The administrative
services agreement provides that beginning October 1, 1987, ARCO provides the
company with certain leased office space, insurance and other financial,
internal audit, legal, aviation and administrative services, and the company
provides ARCO with various technical and legal services. These agreements have
various durations, ranging from monthly renewals to a term extending to 2017.
 
  In addition to the transactions with ARCO and its affiliates, related party
sales and purchases include transactions with other related parties including
those which are accounted for on the equity method.
 
  An analysis of the aggregate transactions for the years ended December 31,
1994, 1993, and 1992 is as follows:
 
<TABLE>
<CAPTION>
                                                                  1994 1993 1992
                                                                  ---- ---- ----
                                                                   (MILLIONS OF
                                                                     DOLLARS)
<S>                                                               <C>  <C>  <C>
Purchases........................................................ $332 $276 $323
Product sales....................................................  156  196  112
Processing fees and operational services.........................   16   17   17
Administrative services:
  For ARCO.......................................................    1    4    2
  By ARCO........................................................   34   36   31
</TABLE>
 
  Outstanding balances under these agreements at December 31, 1994 and 1993,
are included in "Accounts receivable--related parties" and "Accounts payable--
related parties."
 
                                       25
<PAGE>
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

4.  BUSINESS SEGMENT INFORMATION
 
  The company and its subsidiaries currently manufacture and market
intermediate chemicals and specialty products, operate in one reportable
segment, and conduct business in three principal geographic regions.
 
<TABLE>
<CAPTION>
                                                      1994     1993     1992
                                                      ----     ----     ----
                                                      (MILLIONS OF DOLLARS)
<S>                                                  <C>      <C>      <C>
Geographic regions
  Total revenues
    Americas........................................  $2,448   $2,287  $ 2,031
    Europe..........................................     943      900    1,083
    Asia Pacific....................................     233      200      198
    Elimination of interregional sales..............    (201)    (195)    (212)
                                                     -------  -------  -------
      Total.........................................  $3,423   $3,192  $ 3,100
                                                     =======  =======  =======
  Pretax earnings
    Americas........................................ $   436  $   374  $   350
    Europe..........................................       3       16       68
    Asia Pacific....................................      (4)     (23)      (8)
    Corporate.......................................      64       55       64
    Loss on asset disposition.......................      --       --      (56)
    Interest expense................................     (85)    (105)     (79)
    Equity in net income (loss), primarily Asian
     joint ventures.................................       2       (2)     (18)
    Eliminations....................................      --       (4)       1
                                                     -------  -------  -------
      Total......................................... $   416  $   311  $   322
                                                     =======  =======  =======
  Total assets
    Americas........................................  $2,043   $2,017  $ 1,948
    Europe..........................................   1,260    1,109    1,158
    Asia Pacific....................................     166      164      158
    Corporate.......................................     466      344      457
    Investments, at equity, primarily Asian joint
     ventures.......................................      79       64       62
    Eliminations....................................    (277)    (196)    (184)
                                                     -------  -------  -------
      Total.........................................  $3,737   $3,502  $ 3,599
                                                     =======  =======  =======
  U.S. Export sales
    Asia Pacific.................................... $   206  $   128  $   101
    Western Hemisphere..............................     114       86       73
    Europe..........................................       9        2        6
                                                     -------  -------  -------
      Total......................................... $   329  $   216  $   180
                                                     =======  =======  =======
</TABLE>
 
  Interregional sales are made at prices approximating current market values.
The amounts of inter-regional sales that are included in total revenues are as
follows:
 
<TABLE>
<CAPTION>
                                                          1994    1993    1992
                                                         ------- ------- -------
                                                          (MILLIONS OF DOLLARS)
<S>                                                      <C>     <C>     <C>
Americas................................................ $   166    $167    $144
Europe..................................................      34      28      68
Asia Pacific............................................       1      --      --
                                                         ------- ------- -------
  Total................................................. $   201    $195    $212
                                                         ======= ======= =======
</TABLE>
 
                                       26
<PAGE>
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

4.  BUSINESS SEGMENT INFORMATION--(CONTINUED)
 
  Included in pretax earnings are royalty charges made from corporate to the
regions for the use of company technology. Corporate assets are cash and cash
equivalents, headquarters research facilities, and other assets. Eliminations
principally include interregional sales, profit, and receivables.
 
5.  INVENTORIES
 
  Inventories are stated at the lower of cost or market. In 1994, approximately
94 percent of inventories, excluding materials and supplies, were determined by
the last-in, first-out (LIFO) method. Materials and supplies and other non-LIFO
inventories are valued using either the first-in, first-out (FIFO) or the
average cost methods.
 
  Inventories at December 31, 1994 and 1993, comprised the following
categories:
 
<TABLE>
<CAPTION>
                                                              1994       1993
                                                           ---------- ----------
                                                           (MILLIONS OF DOLLARS)
<S>                                                        <C>        <C>
Finished goods............................................       $272       $273
Work-in-process...........................................         35         35
Raw materials.............................................         49         70
Materials and supplies....................................         41         39
                                                           ---------- ----------
  Total...................................................       $397       $417
                                                           ---------- ----------
                                                           ---------- ----------
</TABLE>
 
  If the FIFO inventory valuation method had been used exclusively, inventories
would have been lower than the book value of such inventories by approximately
$6 million and $17 million at December 31, 1994 and 1993, respectively.
 
6.  INVESTMENTS, AT EQUITY
 
  The company uses the equity method to account for its 50 percent interest in
a joint venture, the Nihon Oxirane Co., Ltd., which operates a PO/SM plant in
Chiba, Japan.
 
  In 1992, the company divested its 50 percent ownership interest in YUKONG
ARCO Chemical Ltd. (YAC) to its joint-venture partner Yukong Limited (Yukong).
Operating results for the year ended December 31, 1992 included a $56 million
charge, comprised of a 21 billion Won payment and write-off of the investment
and other related balances. The charge has been recorded in the Consolidated
Statement of Income as "Loss on asset disposition." As of June 30, 1992, the
company ceased accounting for its holdings in YAC under the equity method. The
company's share of net losses from the joint venture through June 30, 1992 were
recorded in "Other income (expense), net." YAC continues to operate under
license from the company. Certain business relationships between the company
and YAC, including an export sales agreement, also continue.
 
                                       27
<PAGE>
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
7.  PROPERTY, PLANT AND EQUIPMENT, NET
 
  Property, plant and equipment, at cost, and related accumulated depreciation
at December 31, 1994 and 1993, were as follows:
 
<TABLE>
<CAPTION>
                                                                   1994   1993
                                                                  ------ ------
                                                                  (MILLIONS OF
                                                                    DOLLARS)
<S>                                                               <C>    <C>
Land............................................................. $   17 $   17
Buildings and equipment..........................................  3,326  3,097
Construction in progress.........................................    181    143
                                                                  ------ ------
                                                                   3,524  3,257
Less: Accumulated depreciation...................................  1,303  1,084
                                                                  ------ ------
  Total.......................................................... $2,221 $2,173
                                                                  ====== ======
</TABLE>
 
  Depreciation expense for the years ended December 31, 1994, 1993 and 1992 was
$193 million, $188 million, and $164 million, respectively. Expenses for
maintenance and repairs, including costs associated with plant maintenance
turnarounds, for the years ended December 31, 1994, 1993, and 1992 were $105
million, $109 million, and $81 million, respectively. Interest cost capitalized
as property, plant and equipment amounted to $37 million in 1992. Interest cost
capitalized in 1994 and 1993 was not material.
 
8.  BANK CREDIT FACILITIES
 
  In October 1994, the company executed an amendment to an existing credit
facility under which it can borrow a total amount of up to $300 million. This
agreement effectively replaced the two previous revolving credit agreements
entered into in December 1993. The credit agreement, as amended, has a
restrictive financial covenant which requires that the company maintain a
minimum net worth of $1 billion and has a term of five years. At December 31,
1994, the company had no outstanding borrowings against the credit agreement.
 
  Notes payable at December 31, 1994 and December 31, 1993 consisted primarily
of short-term bank borrowings and commercial paper issued to a variety of
financial investors and institutions at various interest rates and maturities
of up to 270 days. The weighted average effective interest rate for these
borrowings at December 31, 1994 and December 31, 1993 was 5.8 percent and 3.4
percent, respectively. As a condition of the sale of commercial paper, the
company is required to maintain a back-up credit facility at least equal to the
amount of the outstanding commercial paper. The company uses the credit
agreement for this purpose.
 
9.  OTHER ACCRUED LIABILITIES
 
  Other accrued liabilities at December 31, 1994 and 1993, were as follows:
 
<TABLE>
<CAPTION>
                                                                       1994 1993
                                                                       ---- ----
                                                                       (MILLIONS
                                                                          OF
                                                                       DOLLARS)
<S>                                                                    <C>  <C>
Payroll and benefits.................................................. $ 65 $ 52
Contractual obligations...............................................   21   29
Interest..............................................................   20   20
Restructuring costs...................................................   15   --
Other.................................................................   78   90
                                                                       ---- ----
  Total............................................................... $199 $191
                                                                       ==== ====
</TABLE>
 
                                       28
<PAGE>
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
10.  TAXES
 
  The components of the provision for income taxes for the years ended December
31, 1994, 1993, and 1992 were as follows:
 
<TABLE>
<CAPTION>
                                                       1994     1993     1992
                                                      -------  -------  -------
                                                       (MILLIONS OF DOLLARS)
<S>                                                   <C>      <C>      <C>
Federal:
  Current............................................    $123  $    50  $    62
  Deferred...........................................      21       72       47
                                                      -------  -------  -------
    Total............................................     144      122      109
                                                      -------  -------  -------
Foreign:
  Current............................................      (6)       2       13
  Deferred...........................................      12      (33)      (3)
                                                      -------  -------  -------
    Total............................................       6      (31)      10
                                                      -------  -------  -------
State:
  Current............................................       3       (1)      (4)
  Deferred...........................................      (6)       7       10
                                                      -------  -------  -------
    Total............................................      (3)       6        6
                                                      -------  -------  -------
                                                         $147  $    97     $125
                                                      =======  =======  =======
</TABLE>
 
  Deferred tax liabilities and assets are comprised of the following at
December 31, 1994 and 1993:
 
<TABLE>
<CAPTION>
                                                              1994       1993
                                                           ---------- ----------
                                                           (MILLIONS OF DOLLARS)
<S>                                                        <C>        <C>
Deferred tax liabilities:
  Depreciation and amortization...........................       $415       $368
  Other...................................................         32         14
                                                           ---------- ----------
   Gross deferred tax liabilities.........................        447        382
                                                           ---------- ----------
Deferred tax assets:
  Loss carryforwards......................................        113        102
  Tax basis in excess of book.............................         45         56
  Provisions for benefit plans and estimated expenses.....         75         45
  Foreign and federal tax credit carryforwards............         18         28
                                                           ---------- ----------
   Gross deferred tax assets..............................        251        231
                                                           ---------- ----------
   Deferred tax asset valuation allowance.................        119        116
                                                           ---------- ----------
Net deferred tax liability................................       $315       $267
                                                           ========== ==========
</TABLE>
 
The valuation allowance was $100 million at December 31, 1992.
 
                                       29
<PAGE>
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

10.  TAXES--(CONTINUED)
 
  A reconciliation of the federal statutory rate to the effective tax rate for
the years ended December 31, 1994, 1993, and 1992 is as follows:
 
<TABLE>
<CAPTION>
                              PERCENT OF PRETAX INCOME
                             ----------------------------
                               1994      1993      1992
                             --------  --------  --------
<S>                          <C>       <C>       <C>
Federal statutory rate......     35.0      35.0      34.0
  Increase (reduction) in
   taxes resulting from:
    Foreign deferred tax as-
     set recognition........       --      (8.3)     (1.6)
    Loss on asset disposi-
     tion...................       --        --       5.9
    Deferred tax effect of
     federal rate increase..       --       2.1        --
    State income taxes (net
     of federal effect).....     (0.5)      1.9       1.3
    Other...................      0.8       0.5      (0.8)
                             --------  --------  --------
Effective tax rate..........     35.3      31.2      38.8
                             ========  ========  ========
</TABLE>
 
  During 1993, the company took certain actions to convert five-year foreign
tax loss carryforwards into additional depreciable tax basis. Future losses
attributable to the additional basis will have an unlimited carryforward
period. At December 31, 1994, the company had federal capital loss
carryforwards of $75 million, foreign tax loss carryforwards of $230 million,
state tax loss carryforwards of $222 million and foreign and federal tax credit
carryforwards of $18 million. These carryforwards begin expiring in 1995.
Existing foreign tax credits are sufficient to offset any tax on undistributed
earnings of foreign subsidiaries.
 
  In the fourth quarter 1992, the company elected early adoption of Statement
of Financial Accounting Standards (SFAS) No. 109, "Accounting for Income
Taxes." This standard increased the company's ability to record deferred tax
assets by allowing consideration of anticipated future income. The change was
effected as of January 1, 1992; years prior to 1992 were not restated. The
cumulative effect upon adoption was a benefit of $18 million. The effect of the
change on 1992 results, excluding the cumulative effect, was not material.
 
11.  LONG-TERM DEBT
 
  Long-term debt at December 31, 1994 and 1993, comprised the following:
 
<TABLE>
<CAPTION>
                                                                      1994 1993
                                                                      ---- ----
                                                                      (MILLIONS
                                                                         OF
                                                                      DOLLARS)
<S>                                                                   <C>  <C>
9.9% debentures due in 2000.......................................... $200 $200
9.375% debentures due in 2005........................................  100  100
10.25% debentures due in 2010........................................  100  100
9.8% debentures due in 2020..........................................  224  224
ACNL bank loans......................................................  172  155
French bank loans....................................................   84   94
Other................................................................   33   32
                                                                      ---- ----
  Total..............................................................  913  905
Debt due within one year.............................................   15   17
                                                                      ---- ----
  Long-term debt..................................................... $898 $888
                                                                      ==== ====
</TABLE>
 
                                       30
<PAGE>
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
11.LONG-TERM DEBT--(CONTINUED)
 
  On December 1, 1993, the company redeemed all of its outstanding 9.35 percent
Debentures due 2019, in accordance with the provisions of the Debentures at a
redemption price of 107.48 percent of principal plus interest accrued to the
redemption date. The principal amount redeemed represented the original $125
million issue less amounts repurchased in the open market. The company reported
a fourth quarter charge for loss on early extinguishment of debt of
approximately $13 million before tax, primarily due to repurchase and
redemption premiums and write-off of original issue discount.
 
  The ACNL bank loans, entered into by the company's wholly owned subsidiary,
ARCO Chemie Nederland, Ltd. (ACNL), consist of two borrowings, both due in
1997. At December 31, 1994, ACNL had outstanding interest rate swaps on both of
its bank loans, totalling 300 million Dutch guilders, or approximately $172
million. Both swaps mature in 1997 when the related debt becomes due. The swaps
effectively changed both loans' floating rates, which are based on the
Amsterdam Interbank Offer Rate ("AIBOR"), to fixed rates of 5.7 percent and 6.7
percent. The company intends to hold the swaps until maturity.
 
  The French bank loans, entered into by the company's wholly owned affiliate,
ARCO Chimie France, SNC, mature at various dates through 2006. The weighted
average effective interest rate for these borrowings was approximately 7.9
percent in 1994 and 1993.
 
  Aggregate maturities of all long-term debt during the next five years are $15
million in 1995, $23 million in 1996, $197 million in 1997, $26 million in
1998, and $25 million in 1999.
 
12.OTHER COMMITMENTS AND CONTINGENCIES
 
COMMITMENTS
 
  Subsequent to December 31, 1994, the company entered into a long-term
arrangement for a supply of toluene di-isocyanate (TDI). Initial payments of
$80 million were made at closing for capacity reservation fees, related
inventory and other rights and costs. Effective January 1, 1995, the company is
entitled to all of the TDI output of the supplier's two plants in France, which
have a combined rated capacity of approximately 264 million pounds per year.
Under the arrangement, the company is required to purchase a minimum of 216
million pounds of TDI per year for up to 15 years. The aggregate purchase price
is a combination of plant cost and market price. The company is further
obligated to pay additional capacity reservation fees based upon plant output
factors.
 
  To assure itself of reliable, long-term supplies of utilities at favorable
rates for its Rotterdam plant, the company entered into a 15-year utility
cogeneration joint venture as a limited partner. The joint venture constructed
and operates a cogeneration plant, primarily funded through nonrecourse debt.
Starting in 1995, the company is obligated to take or pay for minimum
quantities of steam and electricity in support of the joint venture's financing
arrangement. The company will pay for actual quantities of steam and
electricity taken based on the joint venture's actual cost plus a specified
return on the partners' investment.
 
  The company also has a long-term purchase agreement for ethylene which
requires the company to take or pay for 143 million pounds annually at
prevailing market prices for a remaining term of five years. Purchases under
this agreement during 1994, 1993 and 1992 were $30 million, $27 million and $21
million, respectively.
 
  The company has commitments, including those related to capital expenditures,
all made in the normal course of business. At December 31, 1994, there were
commitments associated with various capital projects which were not significant
either individually or in the aggregate.
 
                                       31
<PAGE>
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
12.OTHER COMMITMENTS AND CONTINGENCIES--(CONTINUED)
 
CONTINGENCIES
 
  The company and its subsidiaries are involved in a number of lawsuits, all of
which have arisen in the ordinary course of the company's business. The company
is unable to predict the outcome of these matters, but does not believe, based
upon currently available facts, that the ultimate resolution of such matters
will have a material adverse effect on the consolidated financial statements of
the company.
 
  The company is subject to other loss contingencies pursuant to federal,
state, local, and foreign environmental laws and regulations. These
contingencies include possible obligations to remove or mitigate the effect on
the environment of the disposal or release of certain chemical substances at
various sites. The company continues to estimate the amount of these costs and
periodically establishes reserves based on the progress made in determining the
magnitude, method and timing of the remedial actions that may be required by
government authorities, and an evaluation of the company's potential liability
in relation to the liability and financial resources of the other potentially
responsible parties.
 
  At December 31, 1994, the company's reserve totaled $51 million which
reflects the company's latest assessment of potential future costs associated
with existing sites. A significant portion of the reserve is related to the
company's Beaver Valley (Pennsylvania) facility. The company and the
Pennsylvania Department of Environmental Resources have agreed upon a work plan
for testing and remedial process design with regard to conditions at the Beaver
Valley plant. The reserve reflects an agreement between the company and another
responsible party whereby that party has agreed to pay for approximately 50
percent of the cost of the remediation at the Beaver Valley plant. The
remainder of the reserve is related to six other sites for amounts ranging from
$1 million to $7 million per site. Substantially all amounts accrued are
expected to be paid out over the next five to ten years.
 
  The company is currently performing environmental site assessments, remedial
investigations/feasibility studies, and remediation activities at a number of
sites under these laws. The company may in the future be involved in additional
environmental assessments and cleanups. As the scope of the company's
environmental contingencies becomes more clearly defined, it is possible that
amounts in excess of those already reserved may be necessary.
 
  Management believes, based upon its past experience and best assessment of
future events, that these environmental liabilities and costs will be
determined and incurred over an extended period of time, allowing the company
to fund such liabilities and costs through its operating cash flow, and
therefore that the impact of such liabilities and costs would not be material
in relation to the company's consolidated financial position as of December 31,
1994. Depending on the amounts of future operating results, the environmental
liabilities to be recorded in a given annual or quarterly period may
potentially result in charges that are material to the results of operations
for that period.
 
  The company and ARCO are parties to an agreement whereby the company has
indemnified ARCO against certain claims or liabilities that ARCO may incur
relating to ARCO's former ownership and operation of the oxygenates and
polystyrenics businesses of the company, including liabilities under laws
relating to the protection of the environment and the workplace and liabilities
arising out of certain litigation. ARCO has indemnified the company with
respect to other claims or liabilities and other matters of litigation not
related to the assets or businesses reflected in the consolidated financial
statements. ARCO has also indemnified the company for certain federal, foreign,
state, and local taxes that might be assessed upon audit of the operations of
the company included in its consolidated financial statements for periods prior
to July 1, 1987.
 
                                       32
<PAGE>
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
13.  RETIREMENT PLANS
 
  Substantially all employees are covered by various pension plans. The ARCO
Chemical Retirement Plan (ACRP), a defined benefit plan, provides pension
benefits to all of the company's employees in the United States and certain
employees in foreign countries. In addition to the ACRP, the company also
maintains defined benefit pension plans for hourly employees at the Beaver
Valley plant in Monaca, Pennsylvania, as well as several plans covering certain
employees throughout its European and Asia Pacific operations.
 
  Retirement benefits under the ACRP are based on years of participation
service and the employee's compensation primarily during the last three years
of service. Retirement benefits for the Beaver Valley Hourly Retirement Plan
are primarily based on years of service and on the employee's career average
earnings after January 1, 1989, plus a prior benefit accrued through December
31, 1988. European and Asia Pacific plans vary by country, but are primarily
based on years of service and compensation during the last year of service.
The funding policy for these plans consists of annual contributions as
required by applicable regulations. In 1994, 1993, and 1992, the company
charged pension costs as accrued, based on an actuarial valuation, and funded
the plans through contributions to separate trust funds that are kept apart
from company funds.
 
  The following tables set forth the plans' funded status and amounts
recognized in the company's balance sheets at December 31, 1994 and 1993:
 
<TABLE>
<CAPTION>
                                                                1994
                                                     ---------------------------
                                                     ASSETS EXCEED  ACCUMULATED
                                                      ACCUMULATED    BENEFITS
                                                       BENEFITS    EXCEED ASSETS
                                                     ------------- -------------
                                                        (MILLIONS OF DOLLARS)
<S>                                                  <C>           <C>
Actuarial present value of benefit obligations:
  Vested benefit obligation........................      $125          $ 16
                                                         ====          ====
  Accumulated benefit obligation...................      $144          $ 17
                                                         ====          ====
  Projected benefit obligation.....................      $200          $ 23
Plan assets at fair value, primarily stocks and
 bonds.............................................       205            --
                                                         ----          ----
Projected benefit obligation less than (in excess
 of) plan assets...................................         5           (23)
Unrecognized net loss..............................         8             9
Prior service cost not yet recognized in net 
 periodic pension cost.............................         6             2
Unrecognized net liability at January 1, 1994......         3            --
Adjustment required to recognize minimum liability.        --            (5)
                                                         ----          ----
Prepaid pension cost (liability) recognized in the
 balance sheet.....................................      $ 22          $(17)
                                                         ====          ====
</TABLE>
 
                                      33
<PAGE>
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
13.  RETIREMENT PLANS--(CONTINUED)

<TABLE>
<CAPTION>
                                                                1993
                                                     ---------------------------
                                                     ASSETS EXCEED  ACCUMULATED
                                                      ACCUMULATED    BENEFITS
                                                       BENEFITS    EXCEED ASSETS
                                                     ------------- -------------
                                                        (MILLIONS OF DOLLARS)
<S>                                                  <C>           <C>
Actuarial present value of benefit obligations:
  Vested benefit obligation........................      $113          $ 10
                                                         ====          ====
  Accumulated benefit obligation...................      $127          $ 11
                                                         ====          ====
  Projected benefit obligation.....................      $188          $ 16
Plan assets at fair value, primarily stocks and
 bonds.............................................       178            --
                                                         ----          ----
Projected benefit obligation in excess of plan as-
 sets..............................................       (10)          (16)
Unrecognized net loss..............................        22             8
Prior service cost not yet recognized in net 
 periodic pension cost.............................         1             2
Unrecognized net liability at January 1, 1993......         2            --
Adjustment required to recognize minimum liability.        --            (6)
                                                         ----          ----
Prepaid pension cost (liability) recognized in the
 balance sheet.....................................
                                                         $ 15          $(12)
                                                         ====          ====
</TABLE>
 
  The above tables for plans with assets exceeding accumulated benefits include
foreign pension plans. These foreign plans constitute approximately 25 percent
and 23 percent of the projected benefit obligation and 26 percent and 21
percent of the plan assets in the table at December 31, 1994 and 1993,
respectively. The plans for which accumulated benefits exceed assets represent
supplemental retirement benefits for executives and expatriated employees.
 
  Components of net pension cost related to company-sponsored plans for the
years ended December 31, 1994, 1993, and 1992 were as follows:
 
<TABLE>
<CAPTION>
                                                       1994     1993     1992
                                                      -------  -------  -------
                                                       (MILLIONS OF DOLLARS)
<S>                                                   <C>      <C>      <C>
Service cost-benefits earned during the period....... $    15  $    10  $    9
Interest cost on projected benefit obligation........      15       12      10
Actual return on plan assets.........................       1      (27)     (9)
Net amortization and deferral........................     (18)      13      (4)
                                                      -------  -------  ------
  Net periodic pension cost.......................... $    13  $     8  $    6
                                                      =======  =======  ======
</TABLE>
 
In addition to the pension cost above, in 1994 the company recorded $13 million
pretax of additional pension expense in connection with work force reductions
resulting from the corporate restructuring program.
 
  Foreign pension plans comprised $5 million, $3 million and $4 million of net
periodic pension cost for the years 1994, 1993 and 1992, respectively.
 
  The assumptions used as of December 31, 1994, 1993, and 1992 in determining
the domestic net pension cost and net pension liability were as follows:
 
<TABLE>
<CAPTION>
                                                            1994   1993   1992
                                                            -----  -----  -----
<S>                                                         <C>    <C>    <C>
Discount rate..............................................  8.25%  7.25%  8.75%
Rate of salary progression.................................  5.0    5.0    5.0
Long-term rate of return on assets......................... 10.25  10.25  10.25
</TABLE>
 
 
                                       34
<PAGE>
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)

13.  RETIREMENT PLANS--(CONTINUED)
 
  The assumptions used in determining the net pension cost and pension
liability for foreign pension plans were based on the economic environment of
each applicable country. The range of assumptions used as of December 31, 1994
was as follows: discount rates, 7.0 to 8.5 percent; rate of salary progression,
5.0 percent; long-term rate of return on assets, 7.0 to 9.0 percent.
 
14.  OTHER POSTRETIREMENT BENEFITS
 
  The company provides medical and life insurance benefits for retired
employees and covered dependents. Substantially all U.S. employees of the
company may become eligible for these benefits if they remain employed until
normal retirement age or fulfill other eligibility requirements. Retiree
contribution levels to the medical benefit plan are determined annually by the
company; the life insurance plan is noncontributory. The underlying plans are
not funded.
 
  In the fourth quarter 1992, the company adopted Statement of Financial
Accounting Standards No. 106, "Employers Accounting for Postretirement Benefits
Other Than Pensions." The company elected to immediately recognize the
transition obligation as of January 1, 1992 of $33 million in the first quarter
1992 as a change in accounting principle. On an after-tax basis, this charge
was $20 million, or $.21 per share. The effect of the change on 1992 net
income, excluding the cumulative effect upon adoption, was not material.
 
  The following reconciles the unfunded accumulated obligation to the company's
balance sheet as of December 31, 1994 and 1993:
 
<TABLE>
<CAPTION>
                                                                     1994  1993
                                                                     ----  ----
                                                                     (MILLIONS
                                                                        OF
                                                                     DOLLARS)
<S>                                                                  <C>   <C>
Accumulated postretirement benefit obligation:
  Retirees.......................................................... $14   $12
  Fully eligible active plan participants...........................   9     8
  Other active plan participants....................................  33    38
  Unrecognized net loss.............................................  (2)  (13)
                                                                     ---   ---
Accrued postretirement benefit liability............................ $54   $45
                                                                     ===   ===
</TABLE>
 
  Net periodic postretirement benefit cost for the years ended December 31,
1994 and 1993 included the following components:
 
<TABLE>
<CAPTION>
                                                                  1994 1993 1992
                                                                  ---- ---- ----
                                                                   (MILLIONS OF
                                                                     DOLLARS)
<S>                                                               <C>  <C>  <C>
Service cost.....................................................  $4   $3   $2
Interest cost....................................................   4    4    3
                                                                  ---  ---  ---
Net periodic postretirement benefit cost.........................  $8   $7   $5
                                                                  ===  ===  ===
</TABLE>
 
  The medical cost trend rate was assumed to increase 10 percent annually from
1992 to 1996, 8 percent annually from 1997 to 2001 and 6 percent annually
thereafter. Increasing the health care cost trend rate by one percentage point
in each year would increase the accumulated postretirement benefit obligation
as of December 31, 1994 by $9 million and increase net periodic postretirement
benefit cost for 1994 by $2 million. The discount rate used was 8.25 percent.
 
                                       35
<PAGE>
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
15.  STOCK OPTIONS
 
  In November 1989, the Board of Directors adopted the 1990 Long-Term Incentive
Plan (the 1990 Plan). The 1990 Plan, which became effective January 1, 1990,
provides, among other things, for the granting to officers and other key
management employees of nonqualified stock options for the purchase of up to
two million shares of the company's common stock. The option price per share is
fixed by the Long-Term Incentive Plan Administration Subcommittee (the
subcommittee) of the Board of Directors, which administers the 1990 Plan, but
may not be less than the fair market value of the company's common stock on the
date the option is granted. The maximum option period is ten years. Options
granted may be exercised after one year of continuous service with ARCO, the
company, or any of their subsidiaries immediately following the date of the
grant unless the subcommittee establishes a longer waiting period.
 
  In July 1987, ARCO, the company's sole stockholder at the time, approved the
1987 Executive Long-Term Incentive Plan (the 1987 Plan). The 1987 Plan, which
became effective September 1, 1987, provided, among other things, for the
granting to officers and other key management employees of non-qualified stock
options for the purchase of up to 290,000 shares of the company's common stock
at $32 per share. The options are currently exercisable through October 1997.
No additional options will be granted under the 1987 Plan.
 
  The following table summarizes the activity relating to the company's stock
option plans:
 
<TABLE>
<CAPTION>
                                              1994        1993          1992
                                          ------------  ---------     ---------
                                           (NUMBER OF SHARES, EXCEPT PER
                                                    SHARE DATA)
<S>                                       <C>           <C>           <C>
Outstanding at beginning of year.........    1,280,806  1,126,556       950,939
Granted..................................      250,000    225,900       218,150
Exercised................................      (86,500)   (71,650)      (42,533)
Cancelled/forfeited......................       (1,200)        --            --
Outstanding at end of year...............    1,443,106  1,280,806     1,126,556
Exercisable at end of year...............    1,193,106  1,054,906       908,406
Available for grant at end of year.......      613,110    863,110     1,089,010
Average option price per share:
  Shares under option.................... $32-48 9/16    $32-41 15/16   $32-39
  Shares exercised.......................  32-41 15/16    32-39       32-37 1/8
</TABLE>
 
16.  EARNINGS PER COMMON SHARE
 
  Earnings per common share are computed based on the weighted average number
of shares outstanding during the year. For 1994, 1993 and 1992, the weighted
average number of shares was 96,059,348; 95,956,777 and 95,898,909 shares,
respectively. The effect of stock options issued under the 1987 Executive Long-
Term Incentive Plan and the 1990 Long-Term Incentive Plan (see Note 15) on the
computation of primary and fully diluted earnings per common share was not
material and had no effect on the reported earnings per common share.
 
                                       36
<PAGE>
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
17.  SUPPLEMENTAL CASH FLOW INFORMATION
 
  Following is supplemental cash flow information provided for the years ended
December 31, 1994, 1993, and 1992:
 
<TABLE>
<CAPTION>
                                                       1994     1993     1992
                                                      -------  -------  -------
                                                       (MILLIONS OF DOLLARS)
<S>                                                   <C>      <C>      <C>
Short-term investments:
  Gross proceeds from sales.......................... $    --  $    43  $   107
  Gross purchases....................................              (34)     (38)
                                                           --
                                                      -------  -------  -------
  Net proceeds....................................... $    --  $     9  $    69
                                                      =======  =======  =======
Notes payable:
  Gross proceeds from issuances...................... $   724  $   601  $   275
  Gross repayments...................................    (757)    (580)    (240)
                                                      -------  -------  -------
  Net (repayments) proceeds.......................... $   (33) $    21  $    35
                                                      =======  =======  =======
Cash paid during the year for:
  Interest (net of amount capitalized)............... $    82  $   105  $    75
  Income taxes.......................................      93       51       94
</TABLE>
 
18.  LEASE COMMITMENTS
 
  The company leases various facilities and equipment under noncancelable lease
arrangements for varying periods. At December 31, 1994, future minimum lease
payments for all noncancelable operating leases with lease terms in excess of
one year were as follows:
 
<TABLE>
<CAPTION>
                                                                      (MILLIONS
                                                                     OF DOLLARS)
      <S>                                                            <C>
      1995..........................................................    $ 49
      1996..........................................................      40
      1997..........................................................      29
      1998..........................................................      21
      1999..........................................................      12
      Later years...................................................      45
                                                                        ----
        Total minimum lease payments................................    $196
                                                                        ====
</TABLE>
 
  Net rental expense for the years ended December 31, 1994, 1993, and 1992 was
as follows:
 
<TABLE>
<CAPTION>
                                                      1994      1993      1992
                                                     -------   -------   -------
                                                      (MILLIONS OF DOLLARS)
<S>                                                  <C>       <C>       <C>
Minimum rentals.....................................     $88       $81       $77
Sublease rental income..............................      (3)       (3)       (3)
                                                     -------   -------   -------
  Net rental expense................................     $85       $78       $74
                                                     =======   =======   =======
</TABLE>
 
19.  FOREIGN CURRENCY TRANSACTIONS
 
  For the years ended December 31, 1994, 1993, and 1992, losses on foreign
exchange transactions, including foreign currency derivative instruments, were
$2 million, $1 million, and $15 million, respectively. See Note 20.
 
                                       37
<PAGE>
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
20.FINANCIAL INSTRUMENTS
 
  The company does not hold or issue financial instruments for speculative
trading purposes.
 
  Various types of foreign currency forward, option and swap contracts are
used to hedge foreign exchange exposures. Foreign exchange exposures result
from cash flows between U.S. and international operations and transactions
denominated in currencies other than the local currency of an operating
entity. Forward and option contracts are used predominantly to hedge exposures
of less than one year in duration. Swap contracts are used to hedge
intercompany debt exposures with maturities exceeding one year. At December
31, 1994, the company had foreign currency swap contracts outstanding which
mature at various dates through March, 1999. At December 31, 1994 and 1993,
the notional amounts of foreign currency contracts outstanding, principally
European currencies, were $120 million and $85 million, respectively.
 
  Gains and losses, realized and unrealized, on foreign currency forward and
option contracts covering anticipatory cash flows are recognized currently as
other income or expense in the results of operations. Gains and losses on
foreign currency swaps are recognized currently in income and offset foreign
exchange gains and losses on the underlying intercompany loans. Net gains or
losses associated with derivative contracts for 1994 and 1993 were not
material.
 
  The carrying value and estimated fair value of the company's financial
instruments as of December 31, 1994 and 1993 were as follows:
 
<TABLE>
<CAPTION>
                                                      1994            1993
                                                 --------------  ---------------
                                                 CARRYING FAIR   CARRYING  FAIR
                                                  VALUE   VALUE   VALUE   VALUE
                                                 -------- -----  -------- ------
                                                     (MILLIONS OF DOLLARS)
<S>                                              <C>      <C>    <C>      <C>
Nonderivatives:
  Other investments and long-term receivables...   $ 97   $ 97     $ 84   $   84
  Notes payable.................................     23     23       54       54
  Long-term debt (including current maturities).    913    968      905    1,075
Derivatives:
  Foreign currency swaps (loss) gain............     (4)    (4)       4        4
</TABLE>
 
The carrying amounts of nonderivative financial instruments are reported on
the balance sheet under the indicated captions. All derivative instruments are
off-balance-sheet instruments, however net receivable or payable positions
related to derivative instruments are carried on the balance sheet.
 
  Other investments and long-term receivables, which consist primarily of
equity investments in affiliated companies, were valued using current
financial and other available information. The fair value of notes payable
approximates carrying value due to the relatively short-term maturities of
such instruments. Long-term debt was valued based on quoted market prices for
the same or similar issues or on the current rates offered to the company for
debt of the same remaining maturities. The fair value of foreign currency
swaps represents the amount to be exchanged if the existing contracts were
settled at year end and are based on market quotes.
 
  The company is exposed to credit risk related to its financial instruments
in the event of nonperformance by the counterparties. The company does not
generally require collateral or other security to support these financial
instruments. However, the counterparties to these transactions are major
institutions deemed creditworthy by the company; the company does not
anticipate nonperformance by the counterparties.
 
                                      38
<PAGE>
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
21.  CORPORATE RESTRUCTURING PROGRAM
 
  In November, 1994, the company announced a worldwide corporate restructuring
program to reorganize its work force on a global basis. In connection with the
restructuring, approximately 130 people will be leaving the company. The
company accrued $30 million before tax in the fourth quarter of 1994,
consisting primarily of personnel costs (pension enhancements, severance and
other ancillary costs) associated with the terminations.
 
  Of the total accrued, approximately one half related to severance and other
ancillary costs that will be paid from company funds within the next year. The
remainder, primarily related to enhanced pension benefits, will be paid from
the assets of qualified pension plans. The company funds these qualified
pension plans on a long-term basis, giving consideration to statutory and
actuarial requirements and tax regulations.
 
  Through December 31, 1994, no employees had been terminated nor were any
payments made.
 
22.  SUMMARY OF QUARTERLY RESULTS (UNAUDITED)
 
<TABLE>
<CAPTION>
                              MARCH        JUNE        SEPTEMBER      DECEMBER
                               31           30            30             31
                            -----------  ----------- -------------  ------------
                            (MILLIONS OF DOLLARS, EXCEPT PER SHARE DATA)
     1994
     ----
<S>                                <C>          <C>           <C>            <C>
Net sales..................        $757         $824          $895           $947
Gross profit...............         170          216           223            228
Net income (1).............          45           68            81             75
Earnings per common share
 (3).......................         .47          .71           .84            .78
<CAPTION>
     1993
     ----
<S>                                <C>          <C>           <C>            <C>
Net sales..................        $767         $803          $782           $840
Gross profit...............         177          180           178            204
Net income (2).............          52           47            47             68
Earnings per common share
 (3).......................         .54          .49           .49            .71
</TABLE>
- --------
(1) The fourth quarter 1994 includes a charge of $19 million ($.20 per share)
    for corporate restructuring costs and a benefit of $12 million ($.12 per
    share) from insurance proceeds.
(2) The fourth quarter 1993 includes a charge of $10 million ($.10 per share)
    related to early extinguishment of debt. See Note 11.
(3) Earnings per common share calculations for each of the quarters are based
    on the weighted average number of shares outstanding for each period. The
    sum of the quarters may not necessarily be equal to the full year earnings
    per share amount.
 
                                       39
<PAGE>
 
ITEM  9.  CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
          FINANCIAL DISCLOSURE
 
  None
 
                                    PART III
 
ITEM 10.  DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT
 
ITEM 11.  EXECUTIVE COMPENSATION
 
ITEM 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
 
ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS
 
  Information regarding executive officers of the company is included in Part
I. For the other information called for by Items 10, 11, 12, and 13, reference
is made to the company's definitive proxy statement for its Annual Meeting of
Stockholders, to be held on May 11, 1995, which will be filed with the
Securities and Exchange Commission within 120 days after December 31, 1994, and
which is incorporated herein by reference.
 
                                    PART IV
 
ITEM 14.  EXHIBITS AND REPORTS ON FORM 8-K
 
(A) THE FOLLOWING DOCUMENTS ARE FILED AS A PART OF THIS REPORT:
 
<TABLE>
<S>           <C>
 1. and 2.    Financial Statements: These documents are listed in the Index to Consolidated
              Financial Statements. See Item 8.
3. Exhibits:
     3.1      Certificate of Amendment and Restated Certificate of Incorporation of ARCO
              Chemical Company, filed as an Exhibit bearing the same number to the
              company's Registration Statement on Form S-1 (No. 33-15930), filed on July
              28, 1987, and incorporated herein by reference.
     3.2      By-Laws of ARCO Chemical Company, filed as an Exhibit bearing the same number
              to the company's Registration Statement on Form S-1 (No. 33-15930), filed on
              July 28, 1987, and incorporated herein by reference.
     4.1      Indenture, dated as of June 15, 1988, between ARCO Chemical Company and The
              Bank of New York as Trustee, filed as Exhibit 4.2 to the company's Registra-
              tion Statement on Form S-3 (No. 33-23340), filed on July 27, 1988, and incor-
              porated herein by reference.
     4.2      Forms of Debt Securities issuable under the Indenture referred to in Exhibit
              4.1, filed as Exhibit 4.1 to the company's Registration Statement on Form S-3
              (No. 33-23340), filed on July 27, 1988, and incorporated herein by reference.
     4.3      Form of Debt Security issuable under the Indenture referred to in Exhibit
              4.1, filed as Exhibit 4 to the company's Current Report on Form 8-K dated
              January 30, 1990, and incorporated herein by reference.
     4.4      Forms of Debt Securities issuable under the Indenture referred to in Exhibit
              4.1, filed as Exhibits 4.1 and 4.2 to the company's Current Report on Form 8-
              K dated October 31, 1990, and incorporated herein by reference.
</TABLE>
 
                                       40
<PAGE>
 
<TABLE>
<S>   <C>
 4.5  Form of Debt Security issuable under the Indenture referred to in Exhibit
      4.1, filed as Exhibit 4 to the company's Current Report on Form 8-K dated De-
      cember 7, 1990, and incorporated herein by reference.
 4.6  Credit Agreement, dated as of November 19, 1993, between ARCO Chemical Com-
      pany and The First National Bank of Chicago, as Agent for the banks listed
      therein, filed as an Exhibit bearing the same number to the company's Annual
      Report on Form 10-K for 1993, and incorporated herein by reference.
 4.7  Credit Agreement, dated as of November 19, 1993, between ARCO Chemical Com-
      pany and The First National Bank of Chicago, as Agent for the banks listed
      therein, filed as an Exhibit bearing the same number to the company's Annual
      Report on Form 10-K for 1993, and incorporated herein by reference.
 4.8  Amendment No. 1 to the Credit Agreement, dated as of October 14, 1994, be-
      tween ARCO Chemical Company and The First National Bank of Chicago, as Agent
      for the banks listed therein.
 4.9  Instruments defining the rights of holders of long-term debt not registered
      under the Securities Exchange Act of 1934 (other than long-term debt issued
      pursuant to the Credit Agreement) are not filed because the total amount of
      securities authorized under any such instrument does not exceed 10 percent of
      the consolidated total assets of the company. The company agrees to furnish a
      copy of any such instrument to the Securities and Exchange Commission upon
      request.
10.1  ARCO Chemical Company Annual Incentive Plan, effective January 1, 1988, filed
      as an Exhibit bearing the same number to the company's Annual Report on Form
      10-K for 1993, and incorporated herein by reference.
10.2  Resolutions relating to Amendment No. 1 to ARCO Chemical Company Annual In-
      centive Plan, as adopted February 15, 1989, filed as an Exhibit bearing the
      same number to the company's Annual Report on Form 10-K for 1990, and incor-
      porated herein by reference.
10.3  Resolutions relating to Amendment No. 2 to ARCO Chemical Company Annual In-
      centive Plan, as adopted July 17, 1990, effective September 1, 1990, filed as
      an Exhibit bearing the same number to the company's Annual Report on Form 10-
      K for 1990, and incorporated herein by reference.
10.4  Amendment and Restatement of ARCO Chemical Company Executive Supplementary
      Savings Plan, effective January 1, 1989, filed as Exhibit 10.5 to the
      company's Annual Report on Form 10-K for 1990, and incorporated herein by
      reference.
10.5  Resolutions relating to Amendment No. 2 to ARCO Chemical Company Executive
      Supplementary Savings Plan, as adopted July 17, 1990, effective September 1,
      1990, filed as Exhibit 10.6 to the company's Annual Report on Form 10-K for
      1990, and incorporated herein by reference.
10.6  ARCO Chemical Company 1987 Executive Long-Term Incentive Plan, filed as Ex-
      hibit 10.12 to the company's Registration Statement on Form S-1 (No. 33-
      15930), filed on July 28, 1987, and incorporated herein by reference.
10.7  ARCO Chemical Company 1990 Long-Term Incentive Plan, as amended.
10.8  ARCO Chemical Company Retirement Benefit Restoration Plan, effective January
      1, 1988, filed as Exhibit 10.10 to the company's Annual Report on Form 10-K
      for 1993, and incorporated herein by reference.
10.9  Resolutions relating to Amendment No. 1 to ARCO Chemical Company Retirement
      Benefit Restoration Plan, as adopted July 17, 1990, effective September 1,
      1990, filed as Exhibit 10.10 to the company's Annual Report on Form 10-K for
      1990, and incorporated herein by reference.
</TABLE>
 
                                       41
<PAGE>
 
<TABLE>
<S>    <C>
10.10  ARCO Chemical Company Supplementary Executive Retirement Plan, effective
       October 1, 1990, filed as Exhibit 10.13 to the company's Annual Report on
       Form 10-K for 1992, and incorporated herein by reference.
10.11  ARCO Chemical Company Financial Counseling Policy, effective January 1, 1988,
       filed as Exhibit 10.13 to the company's Annual Report on Form 10-K for 1993,
       and incorporated herein by reference.
10.12  ARCO Chemical Company Executive Medical Insurance Plan (Summary Plan Descrip-
       tion), effective January 1, 1988, filed as Exhibit 10.14 to the company's An-
       nual Report on Form 10-K for 1993, and incorporated herein by reference.
10.13  ARCO Chemical Company Key Management Deferral Plan, effective October 1,
       1990, filed as Exhibit 10.19 to the company's Annual Report on Form 10-K for
       1990, and incorporated herein by reference.
10.14  ARCO Chemical Company Key Management Long-Term Disability Plan, effective Oc-
       tober 1, 1990, filed as Exhibit 10.16 to the company's Annual Report on Form
       10-K for 1992, and incorporated herein by reference.
10.15  Resolutions relating to ARCO Chemical Company Key Management Life Insurance
       Plan, as adopted July 17, 1990, effective August 1, 1990, filed as Exhibit
       10.21 to the company's Annual Report on Form 10-K for 1990, and incorporated
       herein by reference.
10.16  ARCO Chemical Company Retirement Plan for Outside Directors, as amended and
       restated effective October 1, 1990, filed as Exhibit 10.18 to the company's
       Annual Report on Form 10-K for 1992, and incorporated herein by reference.
10.17  ARCO Chemical Company Deferral Plan for Outside Directors, effective October
       1, 1990, filed as Exhibit 10.19 to the company's Annual Report on Form 10-K
       for 1992, and incorporated herein by reference.
10.18  Cross-Indemnification Agreement, dated as of June 1, 1987, between ARCO Chem-
       ical Company and Atlantic Richfield Company, filed as Exhibit 10.2(a) to the
       company's Registration Statement on Form S-1 (No. 33-15930), filed on July
       28, 1987, and incorporated herein by reference.
10.19  Amendment No. 1 to Cross-Indemnification Agreement, dated as of June 30,
       1987, between ARCO Chemical Company and Atlantic Richfield Company, filed as
       Exhibit 10.2(b) to the company's Registration Statement on Form S-1 (No. 33-
       15930), filed on July 28, 1987, and incorporated herein by reference.
10.20  Amendment No. 2 to Cross-Indemnification Agreement, dated as of July 1, 1987,
       between ARCO Chemical Company and Atlantic Richfield Company, filed as Ex-
       hibit 10.2(c) to Amendment No. 1 to the company's Registration Statement on
       Form S-1 (No. 33-15930), filed on August 21, 1987, and incorporated herein 
       by reference.
10.21  Tax Sharing Agreement, dated as of June 3, 1987, between ARCO Chemical Com-
       pany and Atlantic Richfield Company, filed as Exhibit 10.3(a) to the
       company's Registration Statement on Form S-1 (No. 33-15930), filed on July
       28, 1987, and incorporated herein by reference.
10.22  Amendment No. 1 to Tax Sharing Agreement, dated as of June 30, 1987, between
       ARCO Chemical Company and Atlantic Richfield Company, filed as Exhibit
       10.3(b) to the company's Registration Statement on Form S-1 (No. 33-15930),
       filed on July 28, 1987, and incorporated herein by reference.
10.23  Modification to Tax Sharing Agreement, dated May 31, 1994, between ARCO Chem-
       ical Company and Atlantic Richfield Company.
10.24  LPC/ACC Services Agreement, dated as of June 30, 1987, between ARCO Chemical
       Company and Lyondell Petrochemical Company, filed as Exhibit 10.4 to the
       company's Registration Statement on Form S-1 (No. 33-15930), filed on July
       28, 1987, and incorporated herein by reference.
</TABLE>
 
                                       42
<PAGE>
 
<TABLE>
<S>    <C>
10.25  Services Agreement, dated as of July 18, 1987, between ARCO Chemical Company
       and Atlantic Richfield Company, filed as Exhibit 10.5 to the company's Regis-
       tration Statement on Form S-1 (No. 33-15930), filed on July 28, 1987, and in-
       corporated herein by reference.
10.26  Amendment No. 1 to Services Agreement, dated as of March 30, 1990, between
       ARCO Chemical Company and Atlantic Richfield Company, filed as Exhibit 10.29
       to the company's Annual Report on Form 10-K for 1990, and incorporated herein
       by reference.
10.27  Shareholder Agreement, dated as of June 30, 1987, between ARCO Chemical Com-
       pany and Atlantic Richfield Company, filed as Exhibit 10.6 to the company's
       Registration Statement on Form S-1 (No. 33-15930), filed on July 28, 1987,
       and incorporated herein by reference.
10.28  Form of ARCO Chemical Company Indemnity Agreement with officers and direc-
       tors, filed as Exhibit 10.8 to the company's Registration Statement on Form
       S-1 (No. 33-15930), filed on July 28, 1987, and incorporated herein by refer-
       ence.
12     Statement re computation of the ratio of earnings to fixed charges.
21     Subsidiaries of ARCO Chemical Company.
23     Consent of Independent Accountants.
24     Power of Attorney.
27     Financial Data Schedule.
</TABLE>
 
  Copies of exhibits will be furnished upon prepayment of 25 cents per page.
Requests should be addressed to the Corporate Secretary.
 
(B) REPORTS ON FORM 8-K:
 
  ARCO Chemical Company filed a Current Report on Form 8-K, dated December 6,
1994, which contained a press release, dated December 6, 1994, announcing the
transaction with Rhone-Poulenc regarding toluene di-isocyanate arrangements.
 
 
                                       43
<PAGE>
 
                                   SIGNATURES
 
  Pursuant to the requirements of Section 13 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, in Newtown Square, Commonwealth of
Pennsylvania, on February 28, 1995.
 
                                          ARCO Chemical Company
 
                                              
                                          By:          ALAN R. HIRSIG
                                              ---------------------------------
                                                       Alan R. Hirsig
                                               President and Chief Executive
                                                          Officer
 
                               ----------------
 
  Pursuant to the requirements of the Securities Exchange Act of 1934, this
report has been signed below by the following persons on behalf of the
registrant and in the capacities and on the date indicated.
 
              SIGNATURE                         TITLE                DATE
              ---------                         -----                ----
                                         
          LODWRICK M. COOK*                Chairman of the 
- -------------------------------------    Board and Director 
          Lodwrick M. Cook

           ALAN R. HIRSIG                 President, Chief
- -------------------------------------     Executive Officer
           Alan R. Hirsig                   and Director
 
        MARVIN O. SCHLANGER*               Executive Vice
- -------------------------------------     President, Chief
         Marvin O. Schlanger              Operating Officer
                                            and Director
 
          JACK E. OPPASSER*                  Senior Vice
- -------------------------------------       President and
          Jack E. Oppasser                    Director
 
         WALTER J. TUSINSKI*                 Senior Vice                      
- -------------------------------------     President, Chief                    
         Walter J. Tusinski               Financial Officer       February 28,
                                            and Director                  1995 
 
          PETER C. HARRIS*               Vice President and
- -------------------------------------         Director
           Peter C. Harris
 
         RONALD J. ARNAULT*                   Director
- -------------------------------------
          Ronald J. Arnault
 
          WALTER F. BERAN*                    Director 
- -------------------------------------
           Walter F. Beran
 
         E. KENT DAMON, JR.*                  Director
- -------------------------------------
         E. Kent Damon, Jr.
 
          MARIE L. KNOWLES*                   Director
- -------------------------------------
          Marie L. Knowles
 
                                       44
<PAGE>
 
              SIGNATURE                         TITLE                DATE
              ---------                         -----                ----
                                     
         JAMES A. MIDDLETON*                  Director
- -------------------------------------
         James A. Middleton

            FRANK SAVAGE*                     Director
- -------------------------------------
            Frank Savage
 
       ROBERT H. STEWART, III*                Director
- -------------------------------------
       Robert H. Stewart, III
                                                                   February 28,
            JOHN A. SHAW                 Vice President and                1995
- -------------------------------------        Controller
            John A. Shaw                     (principal
                                         accounting officer)
 
    
*By:        JOHN A. SHAW
    ---------------------------------
            John A. Shaw
 
         (Attorney in fact)
 
                                       45
<PAGE>
 
                                    EXHIBITS
                                       TO
                                   FORM 10-K
                ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF
                      THE SECURITIES EXCHANGE ACT OF 1934
FOR THE FISCAL YEAR ENDED DECEMBER 31, 1994        COMMISSION FILE NUMBER 1-9678
                             ARCO CHEMICAL COMPANY
 
                                 EXHIBIT INDEX
 
<TABLE>
<CAPTION>
 EXHIBIT
   NO.
 -------
 <C>     <S>                                                               <C>
   3.1   Certificate of Amendment and Restated Certificate of Incorpora-
         tion of ARCO Chemical Company, filed as an Exhibit bearing the
         same number to the company's Registration Statement on Form S-1
         (No. 33-15930), filed on July 28, 1987, and incorporated herein
         by reference...................................................
   3.2   By-Laws of ARCO Chemical Company, filed as an Exhibit bearing
         the same number to the company's Registration Statement on Form
         S-1 (No. 33-15930), filed on July 28, 1987, and incorporated
         herein by reference............................................
   4.1   Indenture, dated as of June 15, 1988, between ARCO Chemical
         Company and The Bank of New York as Trustee, filed as Exhibit
         4.2 to the company's Registration Statement on Form S-3 (No.
         33-23340), filed on July 27, 1988, and incorporated herein by
         reference......................................................
   4.2   Forms of Debt Securities issuable under the Indenture referred
         to in Exhibit 4.1, filed as Exhibit 4.1 to the company's Regis-
         tration Statement on Form S-3 (No. 33-23340), filed on July 27,
         1988, and incorporated herein by reference.....................
   4.3   Form of Debt Security issuable under the Indenture referred to
         in Exhibit 4.1, filed as Exhibit 4 to the company's Current Re-
         port on Form 8-K dated January 30, 1990, and incorporated
         herein by reference............................................
   4.4   Forms of Debt Securities issuable under the Indenture referred
         to in Exhibit 4.1, filed as Exhibits 4.1 and 4.2 to the
         company's Current Report on Form 8-K dated October 31, 1990,
         and incorporated herein by reference...........................
   4.5   Form of Debt Security issuable under the Indenture referred to
         in Exhibit 4.1, filed as Exhibit 4 to the company's Current Re-
         port on Form 8-K dated December 7, 1990, and incorporated
         herein by reference............................................
   4.6   Credit Agreement, dated as of November 19, 1993, between ARCO
         Chemical Company and The First National Bank of Chicago, as
         Agent for the banks listed therein, filed as an Exhibit bearing
         the same number to the company's Annual Report on Form 10-K for
         1993, and incorporated herein by reference.....................
   4.7   Credit Agreement, dated as of November 19, 1993, between ARCO
         Chemical Company and The First National Bank of Chicago, as
         Agent for the banks listed therein, filed as an Exhibit bearing
         the same number to the company's Annual Report on Form 10-K for
         1993, and incorporated herein by reference.....................
   4.8   Amendment No. 1 to the Credit Agreement, dated as of October
         14, 1994, between ARCO Chemical Company and The First National
         Bank of Chicago, as Agent for the banks listed therein.........
</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>
 EXHIBIT
   NO.
 -------
 <C>     <S>                                                               <C>
   4.9   Instruments defining the rights of holders of long-term debt
         not registered under the Securities Exchange Act of 1934 (other
         than long-term debt issued pursuant to the Credit Agreement)
         are not filed because the total amount of securities authorized
         under any such instrument does not exceed 10 percent of the
         consolidated total assets of the company. The company agrees to
         furnish a copy of any such instrument to the Securities and Ex-
         change Commission upon request.................................
  10.1   ARCO Chemical Company Annual Incentive Plan, effective January
         1, 1988, filed as an Exhibit bearing the same number to the
         company's Annual Report on Form 10-K, and incorporated herein
         by reference ..................................................
  10.2   Resolutions relating to Amendment No. 1 to ARCO Chemical Com-
         pany Annual Incentive Plan, as adopted February 15, 1989, filed
         as an Exhibit bearing the same number to the company's Annual
         Report on Form 10-K for 1990, and incorporated herein by refer-
         ence...........................................................
  10.3   Resolutions relating to Amendment No. 2 to ARCO Chemical Com-
         pany Annual Incentive Plan, as adopted July 17, 1990, effective
         September 1, 1990, filed as an Exhibit bearing the same number
         to the company's Annual Report on Form 10-K for 1990, and in-
         corporated herein by reference ................................
  10.4   Amendment and Restatement of ARCO Chemical Company Executive
         Supplementary Savings Plan, effective January 1, 1989, filed as
         Exhibit 10.5 to the company's Annual Report on Form 10-K for
         1990, and incorporated herein by reference.....................
  10.5   Resolutions relating to Amendment No. 2 to ARCO Chemical Com-
         pany Executive Supplementary Savings Plan, as adopted July 17,
         1990, effective September 1, 1990, filed as Exhibit 10.6 to the
         company's Annual Report on Form 10-K for 1990, and incorporated
         herein by reference............................................
  10.6   ARCO Chemical Company 1987 Executive Long-Term Incentive Plan,
         filed as Exhibit 10.12 to the company's Registration Statement
         on Form S-1 (No. 33-15930), filed on July 28, 1987, and incor-
         porated herein by reference....................................
  10.7   ARCO Chemical Company 1990 Long-Term Incentive Plan, as amend-
         ed;............................................................
  10.8   ARCO Chemical Company Retirement Benefit Restoration Plan, ef-
         fective
         January 1, 1988, filed as Exhibit 10.10 to the Company's Annual
         Report on Form 10-K for 1993, and incorporated herein by refer-
         ence...........................................................
  10.9   Resolutions relating to Amendment No. 1 to ARCO Chemical Com-
         pany Retirement Benefit Restoration Plan, as adopted July 17,
         1990, effective September 1, 1990, filed as Exhibit 10.10 to
         the company's Annual Report on Form 10-K for 1990, and incorpo-
         rated herein by reference......................................
  10.10  ARCO Chemical Company Supplementary Executive Retirement Plan,
         effective October 1, 1990, filed as Exhibit 10.12 to the
         company's Annual Report on Form 10-K for 1992, and incorporated
         herein by reference............................................
  10.11  ARCO Chemical Company Financial Counseling Policy, effective
         January 1, 1988, filed as Exhibit 10.13 to the company's Annual
         Report on Form 10-K for 1993, and incorporated herein by refer-
         ence...........................................................
  10.12  ARCO Chemical Company Executive Medical Insurance Plan (Summary
         Plan Description), effective January 1, 1988, filed as Exhibit
         10.14 to the company's Annual Report on Form 10-K for 1993, and
         incorporated herein by reference...............................
  10.13  ARCO Chemical Company Key Management Deferral Plan, effective
         October 1, 1990, filed as Exhibit 10.19 to the company's Annual
         Report on Form 10-K for 1990, and incorporated herein by refer-
         ence...........................................................
</TABLE>
 
                                       2
<PAGE>
 
<TABLE>
<CAPTION>
 EXHIBIT
   NO.
 -------
 <C>     <S>                                                                <C>
  10.14  ARCO Chemical Company Key Management Long-Term Disability Plan,
         effective October 1, 1990, filed as Exhibit 10.16 to the
         company's Annual Report on Form 10-K for 1992, and incorporated
         herein by reference. ...........................................
  10.15  Resolutions relating to ARCO Chemical Company Key Management
         Life Insurance Plan, as adopted July 17, 1990, effective August
         1, 1990, filed as Exhibit 10.21 to the company's Annual Report
         on Form 10-K for 1990, and incorporated herein by reference.....
  10.16  ARCO Chemical Company Retirement Plan for Outside Directors, as
         amended and restated effective October 1,1990, filed as Exhibit
         10.18 to the company's Annual Report on Form 10-K for 1992, and
         incorporated herein by reference. ..............................
  10.17  ARCO Chemical Company Deferral Plan for Outside Directors, ef-
         fective October 1, 1990, filed as Exhibit 10.19 to the company's
         Annual Report on Form 10-K for 1992, and incorporated herein by
         reference.......................................................
  10.18  Cross-Indemnification Agreement, dated as of June 1, 1987, be-
         tween ARCO Chemical Company and Atlantic Richfield Company,
         filed as Exhibit 10.2(a) to the company's Registration Statement
         on Form S-1 (No. 33-15930), filed on July 28, 1987, and incorpo-
         rated herein by reference.......................................
  10.19  Amendment No. 1 to Cross-Indemnification Agreement, dated as of
         June 30, 1987, between ARCO Chemical Company and Atlantic Rich-
         field Company, filed as Exhibit 10.2(b) to the company's Regis-
         tration Statement on Form S-1 (No. 33-15930), filed on July 28,
         1987, and incorporated herein by reference......................
  10.20  Amendment No. 2 to Cross-Indemnification Agreement, dated as of
         July 1, 1987, between ARCO Chemical Company and Atlantic Rich-
         field Company, filed as Exhibit 10.2(c) to Amendment No. 1 to
         the company's Registration Statement on Form S-1 (No. 33-15930),
         filed on August 21, 1987, and incorporated herein by reference..
  10.21  Tax Sharing Agreement, dated as of June 3, 1987, between ARCO
         Chemical Company and Atlantic Richfield Company, filed as Ex-
         hibit 10.3(a) to the company's Registration Statement on Form S-
         1 (No. 33-15930), filed on July 28, 1987, and incorporated
         herein by reference.............................................
  10.22  Amendment No. 1 to Tax Sharing Agreement, dated as of June 30,
         1987, between ARCO Chemical Company and Atlantic Richfield Com-
         pany, filed as Exhibit 10.3(b) to the company's Registration
         Statement on Form S-1 (No. 33-15930), filed on July 28, 1987,
         and incorporated herein by reference............................
  10.23  Modification to Tax Sharing Agreement, dated May 31, 1994, be-
         tween ARCO Chemical Company and Atlantic Richfield Company......
  10.24  LPC/ACC Services Agreement, dated as of June 30, 1987, between
         ARCO Chemical Company and Lyondell Petrochemical Company, filed
         as Exhibit 10.4 to the company's Registration Statement on Form
         S-1 (No. 33-15930), filed on July 28, 1987, and incorporated
         herein by reference.............................................
  10.25  Services Agreement, dated as of July 18, 1987, between ARCO
         Chemical Company and Atlantic Richfield Company, filed as Ex-
         hibit 10.5 to the company's Registration Statement on Form S-1
         (No. 33-15930), filed on July 28, 1987, and incorporated herein
         by reference....................................................
  10.26  Amendment No. 1 to Services Agreement, dated as of March 30,
         1990, between ARCO Chemical Company and Atlantic Richfield Com-
         pany, filed as Exhibit 10.29 to the company's Annual Report on
         Form 10-K for 1990, and incorporated herein by reference........
  10.27  Shareholder Agreement, dated as of June 30, 1987, between ARCO
         Chemical Company and Atlantic Richfield Company, filed as Ex-
         hibit 10.6 to the company's Registration Statement on Form S-1
         (No. 33-15930), filed on July 28, 1987, and incorporated herein
         by reference....................................................
  10.28  Form of ARCO Chemical Company Indemnity Agreement with officers
         and directors, filed as Exhibit 10.8 to the company's Registra-
         tion Statement on Form S-1 (No. 33-15930), filed on July 28,
         1987, and incorporated herein by reference......................
  12     Statement re computation of the ratio of earnings to fixed
         charges.........................................................
  21     Subsidiaries of ARCO Chemical Company...........................
  23     Consent of Independent Accountants..............................
  24     Power of Attorney...............................................
  27     Financial Data Schedule.........................................
</TABLE>
 
                                       3

<PAGE>
 
                                                                     Exhibit 4.8

                                AMENDMENT NO. 1

     AMENDMENT NO. 1 dated as of October 14, 1994 (this "Amendment") to that
certain Credit Agreement B dated as of November 19, 1993 (the "Credit
Agreement") among ARCO Chemical Company, a Delaware corporation, the Banks party
thereto and The First National Bank of Chicago, as Agent for such Banks.

     The parties hereto wish to increase the aggregate amount of the Commitments
to $300,000,000 and to amend the Credit Agreement in certain other respects and
accordingly hereby agree as follows:

     1.  Definitions.  Unless the context otherwise requires, all capitalized
         -----------                                                         
terms used but not otherwise defined herein shall have the meanings assigned to
them in the Credit Agreement.

     2.  Amendments.  Effective upon the satisfaction of the conditions
         ----------                                                    
precedent set forth in Section 4 of this Amendment, the Credit Agreement shall
be amended as follows:

     (a) All references contained in the Credit Agreement (including, without
limitation, such references contained in the Exhibits thereto) to "Credit
Agreement B" shall be amended and restated as references to "Credit Agreement".

     (b) The definition of "Bank Credit Documents" contained in Section 1.01 of
the Credit Agreement shall be amended and restated in its entirety as follows:

          "Bank Credit Documents" means, collectively, this Agreement and the
     Notes.

     (c) The definition of "Commitment Fee Percentage" contained in Section
1.01 of the Credit Agreement shall be deleted in its entirety.

     (d) The definition of "Facility Fee Percentage" contained in Section 1.01
of the Credit Agreement shall be amended and restated in its entirety as
follows:

          "Facility Fee Percentage" shall mean, with respect to each payment of
     the facility fee pursuant to Section 2.08(b), the percentage rate per annum
     set forth below opposite the ratings on the Borrower's senior unsecured
     long-term public debt issued by both Moody's Investor Service, Inc. (or its
     successor) and Standard & Poor's Corporation (or its successor) in effect
     on the applicable date of determination:
<TABLE>
<CAPTION>
 
                                          Facility Fee
          S & P Rating   Moody's Rating   Percentage
          ------------   --------------   ----------   
          <S>             <C>             <C>
 
          A- or higher    A3 or higher       .10%
          BBB to BBB+     Baa1 to Baa2       .125%
          BBB-            Baa3               .20%
          Below BBB-      Below Baa3         .25%
</TABLE>
<PAGE>
 
     For each facility fee payment pursuant to Section 2.08(b), the applicable
     Facility Fee Percentage shall be determined as of the Quarterly Date, or
     date of termination of the Commitments in their entirety, as the case may
     be, which is five Domestic Business Days preceding the date such payment is
     due pursuant to Section 2.08(b).  In the event of a split rating, the
     Borrower shall be entitled to the benefit of the higher rating, unless
     either rating is below BBB- or Baa3 (in which case the lower rating shall
     control).  In the event that a rating is available from only one rating
     agency, such rating shall control.  In the event that a rating is not
     available from either rating agency, the applicable Facility Fee Percentage
     shall be .250%.

     (e)  The definition of "Other Agreement" contained in Section 1.01 of the
Credit Agreement shall be deleted in its entirety.

     (f)  The definition of "Syndicated Margin" contained in Section 1.01 of the
Credit Agreement shall be amended and restated in its entirety as follows:

          "Syndicated Margin" shall mean, with respect to a Syndicated Loan
     outstanding on the applicable date of determination, the applicable
     Syndicated Margin set forth below (i) beneath the interest rate option
     applicable to such Syndicated Loan and (ii) opposite the ratings on the
     Borrower's senior unsecured long-term public debt issued by both Moody's
     Investor Service, Inc. (or its successor) and Standard & Poor's Corporation
     (or its successor) in effect on such date of determination:
<TABLE>
<CAPTION>
 
     S & P Rating      Moody's Rating    Euro-Currency    Fixed CD  Base Rate
     <S>               <C>                  <C>           <C>         <C>
     A- or higher      A3 or higher         .20%          .325%       0.0%
     BBB to BBB+       Baa1 to Baa2         .275%         .400%       0.0%
     BBB-              Baa3                 .30%          .425%       0.0%
     Below BBB-        Below Baa3           .50%          .625%       0.0%
</TABLE>

     The rate of interest applicable to any outstanding Syndicated Loan shall
     change simultaneously with, and to the extent that, the applicable
     Syndicated Margin changes (as a result of a rating change).  In the event
     of a split rating, the Borrower shall be entitled to the benefit of the
     higher rating, unless either rating is below BBB- or Baa3 (in which case
     the lower rating shall control).  In the event that a rating is available
     from only one rating agency, such rating shall control.  In the event that
     a rating is not available from either rating agency, the applicable
     Syndicated Margin shall be that which would be applicable in the case of a
     rating below BBB-  or Baa3.

     (g)  The definition of "Termination Date" contained in Section 1.01 of the
Credit Agreement shall be amended and restated in its entirety as follows:

          "Termination Date" shall mean October 14, 1999 or, if such day is not
     a Euro-Currency Business Day, the next preceding Euro-Currency Business
     Day.


                                    Page 2
<PAGE>
 
     (h)  Section 2.03(b) of the Credit Agreement shall be amended by deleting
the parenthetical "(under and as defined in either this Agreement or the Other
Agreement)" contained at the conclusion thereof.

     (i)  Section 2.08(a) of the Credit Agreement shall be amended and restated
in its entirety as follows:  "(a)  [This Section Intentionally Omitted.]"

     (j)  Section 2.08(d) of the Credit Agreement shall be amended by restating
the reference contained therein to "subsections (a) and (b)" as "subsection
(b)".

     (k)  Section 2.14 of the Credit Agreement shall be amended and restated in
its entirety as follows:

          SECTION 2.14  Computation of Interest and Fees.  Interest based on the
                        --------------------------------                        
     Base Rate and interest on Borrowings denominated in pounds sterling shall
     be computed on the basis of a year of 365 days (or 366 days in a leap year)
     and paid for the actual number of days elapsed (including the first day but
     excluding the last day).  All other interest and fees shall be computed on
     the basis of a year of 360 days and paid for the actual number of days
     elapsed (including the first day but excluding the last day).

     (l)  Section 4.01(a)(5) of the Credit Agreement shall be amended and
restated in its entirety as follows:

          (5) Assuming its due execution by the Banks and the Agent, this
     Agreement constitutes a legal, valid and binding agreement of the Borrower,
     and the Notes, when duly executed on behalf of the Borrower and delivered
     in accordance with this Agreement, will constitute legal, valid and binding
     obligations of the Borrower (subject, as to enforcement of remedies, to
     applicable bankruptcy, reorganization, insolvency, moratorium or other laws
     affecting creditors' rights generally from time to time in effect and to
     general principles of equity).

     (m)  Section 8.06 of the Credit Agreement shall be amended and restated in
its entirety as follows:

          SECTION 8.06.  Substitution of Bank.  If (i) the obligation of any
                         --------------------                               
     Bank to make Euro-Currency Loans has been suspended pursuant to either
     Section 8.01(b) or Section 8.02 or (ii) any Bank has demanded compensation
     under any of Sections 2.16, 8.03 or 8.05, the Borrower shall have the
     right, with the assistance of the Agent, to seek a mutually satisfactory
     substitute bank or banks (which may be one or more of the Banks) to
     purchase and assume all of the rights and obligations of such Bank under
     this Agreement and the Notes of such Bank, all in accordance with the
     provisions of Section 9.07(c).


                                    Page 3
<PAGE>
 
     (n)  Section 9.07(c) of the Credit Agreement shall be amended by deleting
the following proviso contained therein:  "; provided, that simultaneously with
                                             --------                          
each such assignment, the assigning Bank shall assign to the same Assignee the
same proportionate share of all of its rights and obligations, if any, under the
Other Agreement in accordance with the provisions of Section 9.07(c) of the
Other Agreement".

     (o)  The signature pages and Commitments set forth following Section 9.13
of the Credit Agreement shall be amended and restated as set forth in the
signature pages to this Amendment and Commitments following Section 9 hereof.

     3.  Representations and Warranties.  The Borrower hereby confirms,
         ------------------------------                                
reaffirms and restates as of the date hereof the representations and warranties
set forth in Article IV of the Credit Agreement except to the extent such
representations and warranties relate to a specific date, provided that such
representations and warranties shall be and hereby are amended as follows:  each
reference therein to "this Agreement", including, without limitation, such a
reference included in the term "Bank Credit Documents", shall be deemed to be a
collective reference to the Credit Agreement, this Amendment and the Credit
Agreement as amended by this Amendment.  An Event of Default under and as
defined in the Credit Agreement as amended by this Amendment shall be deemed to
have occurred if any representation or warranty made pursuant to the foregoing
sentence of this Section 3 shall be materially false as of the date on which
made or, to the extent such representations and warranties relate to a specific
date, as of such date.

     4.  Effectiveness; Additional Conditions Precedent.  (a) This Amendment and
         ----------------------------------------------                         
the amendments to the Credit Agreement provided for herein shall become
effective as of the date (the "Effective Date") on which all of the following
conditions precedent shall have been satisfied:

          (i)  This Amendment shall have been duly executed and delivered by the
     Agent and the Borrower on one counterpart and each of the Banks shall have
     signed a counterpart or counterparts hereof and notified the Agent by
     facsimile or telephone that such action has been taken and that such
     executed counterpart or counterparts will be mailed or otherwise delivered
     to the Agent.

          (ii)  That certain Credit Agreement A dated as of November 19, 1993
     among the Borrower, the banks listed on the signature pages thereof and The
     First National Bank of Chicago, as agent for said banks, shall have been
     terminated and any and all amounts owing by the Borrower thereunder shall
     have been repaid in full.

          (iii)  No Default or Event of Default shall have occurred and be
     continuing.

     (b)  Upon the Effective Date, all references to the Credit Agreement in the
conditions precedent to the initial Borrowing set forth in Sections 3.01(i),
(ii), and (iii) of the Credit

                                    Page 4
<PAGE>
 
Agreement shall be deemed to refer to the Credit Agreement, this Amendment, and
the Credit Agreement as amended by this Amendment.

     5.  Effect on the Existing Agreement.  Except as expressly amended hereby,
         --------------------------------                                      
all of the representations, warranties, terms, covenants and conditions of the
Credit Agreement and the other Bank Credit Documents (a) shall remain unaltered,
(b) shall continue to be, and shall remain, in full force and effect in
accordance with their respective terms, and (c) are hereby ratified and
confirmed in all respects.  Upon the effectiveness of this Amendment, all
references in the Credit Agreement (including references in the Credit Agreement
as amended by this Amendment) to "this Agreement" (and all indirect references
such as "hereby", "herein", "hereof" and "hereunder") shall be deemed to be
references to the Credit Agreement as amended by this Amendment.

     6.  Expenses.  The Company shall reimburse the Agent for any and all
         --------                                                        
reasonable costs, internal charges and out-of-pocket expenses (including
reasonable attorneys' fees and time charges of attorneys for the Agent, which
attorneys may be employees of the Agent) paid or incurred by the Agent in
connection with the preparation, review, execution and delivery of this
Amendment.

     7.  Entire Agreement.  This Amendment, the Credit Agreement as amended by
         ----------------                                                     
this Amendment and the other Bank Credit Documents embody the entire agreement
and understanding between the parties hereto and supersede any and all prior
agreements and understandings between the parties hereto relating to the subject
matter hereof.

     8.  Governing Law.  This Amendment shall be construed in accordance with
         -------------                                                       
the internal laws (and not the law of conflicts) of the State of Illinois, but
giving effect to federal laws applicable to a national banking association
located in the State of Illinois.

     9.  Counterparts.  This Amendment may be executed in any number of
         ------------                                                  
counterparts, all of which taken together shall constitute one agreement, and
any of the parties hereto may execute this Amendment by signing any such
counterpart.

                                    Page 5
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
duly executed as of the date first above written.


                         THE BORROWER

                         ARCO CHEMICAL COMPANY


                         By /s/ Anne T. Schumann
                           ---------------------------------
                              Anne T. Schumann
                              Manager of Banking

                              Address for Notices:

                              3801 West Chester Pike
                              Newtown Square, Pennsylvania  19073
                              Attn: Manager of Banking

                              Telex No.: 99-0756
                                    (answerback ARCO CHEM NS1)
                              Telephone No.: 610-359-7210
                              Telecopier No.: 610-359-7222


                         THE AGENT


                         THE FIRST NATIONAL BANK OF CHICAGO

                         By /s/ Ronald L. Dierker
                           ---------------------------------
                                    Ronald L. Dierker
                                    Vice President

                              Address for Notices:

                              The First National Bank of Chicago
                              One First National Plaza
                              Chicago, Illinois  60670
                              Attention:  William P. Laird
                              Mail Suite 0464
                              Telex No.: 4330253 (answerback FNBCUI)
                              Telephone No.: 312-732-5635
                              Telecopier No.: 312-732-3055

                                    Page 6
<PAGE>
 
                              cc: Ronald L. Dierker
                              Mail Suite 0363
                              Telex No.: 4330253 (answerback FNBCUI)
                              Telephone No.: 312-732-6886
                              Telecopier No.: 312-732-3055



                         THE BANKS

Commitment
- ----------


$45,000,000              THE FIRST NATIONAL BANK OF CHICAGO


                         By /s/ Ronald L. Dierker
                           ---------------------------------
                                Ronald L. Dierker
                                Vice President


$40,000,000              BANK OF AMERICA NT & SA


                         By /s/ Todd Baker
                           ---------------------------------
                         Title  Vice President
                              ------------------------------


$35,000,000              CREDIT LYONNAIS
                                NEW YORK BRANCH


                         By /s/ Mary L. Collier
                           ---------------------------------
                         Title  Vice President
                              ------------------------------


                         CREDIT LYONNAIS
                                CAYMAN ISLAND BRANCH


                         By /s/ Mary L. Collier
                           ---------------------------------
                         Title  Authorized Signature
                              ------------------------------

                                    Page 7
<PAGE>
 
$20,000,000              CREDIT SUISSE


                         By /s/ Eileen O'Connell Fox / Dawn E. Rubinstein
                           ----------------------------------------------
                         Title  Member of Senior Management / Associate
                              -------------------------------------------


$40,000,000              TEXAS COMMERCE BANK
                                NATIONAL ASSOCIATION


                         By /s/
                           ---------------------------------
                         Title  Vice President
                              ------------------------------


$25,000,000              THE CHASE MANHATTAN BANK, N.A.


                         By /s/ Stephen M. Feeney
                           ---------------------------------
                         Title  Vice President
                              ------------------------------


$25,000,000              TORONTO DOMINION (TEXAS), INC.


                         By /s/ Warren Finlay
                           ---------------------------------
                         Title  Vice President
                              ------------------------------


$25,000,000              PNC BANK, NATIONAL ASSOCIATION


                         By /s/ 
                           ---------------------------------
                         Title  Assistant Vice President
                              ------------------------------

                                    Page 8
<PAGE>
 
$15,000,000              CORESTATES BANK, N.A.


                         By /s/
                           ---------------------------------
                         Title
                              ------------------------------


$15,000,000              THE BANK OF TOKYO TRUST COMPANY


                         By /s/ M. R. Marron
                           ---------------------------------
                         Title  Vice President
                              ------------------------------


$15,000,000              CITIBANK, N.A.


                         By /s/
                           ---------------------------------
                         Title
                              ------------------------------
 
- ----------------
$300,000,000



                                    Page 9

<PAGE>
 
                                                                    Exhibit 10.7

              1990 ARCO Chemical Company Long-Term Incentive Plan



Article I                     GENERAL PROVISIONS
                              ------------------

Section 1.  Purposes of the Plan
            --------------------

            The purposes of this Plan are to encourage management and other key
employees to focus on the long-range growth and profitability of the Company; to
reward them for success in achieving specific long-range goals; and to
facilitate the attraction and retention of employees of superior capability.


Section 2.  Effective Date and Duration of Plan
            -----------------------------------

            The effective date of the Plan is January 1, 1990, subject to
approval by the holders of a majority of the shares which are represented in
person or by proxy and entitled to vote on the subject at a meeting of the
stockholders of the Company at which a quorum is present, except that awards
under the Plan may be made subject to such stockholder approval. No awards may
be made under the plan after December 31, 1996.


Section 3.  Definitions
            -----------

            As used herein, the following terms shall have the following
meanings:

                  (a) "Common Stock" shall mean the common stock of the Company
having a par value of $1.00 per share.

                  (b) "Company" shall mean ARCO Chemical Company.

                  (c) "Dividend Share Credits" (DSC's) shall mean the number of
credits, expressed as an equivalent number of shares of Common Stock, to be
recorded as credited to an Eligible Employee as of the record date established
by the Board of Directors of the Company for each cash dividend declared and
issued on outstanding shares of Common Stock, with respect to the Stock Rights
held by an Eligible Employee on such record date. The number of DSCs to be
credited shall be the aggregate number derived by (i) multiplying the declared
dividend rate per share of Common Stock by the number of Stock Rights held by an
Eligible Employee as of the dividend record date, and (ii) dividing the
resulting figure by the Fair Market Value of a share of Common Stock on such
record date. The DSCs will be calculated to the nearest 0.0001 of a unit.
<PAGE>
 
1990 ARCO Chemical Company Long-Term Incentive Plan                       Page 2

                  (d) "Eligible Employees" shall mean management and other key
employees of the Company or of any Subsidiary or Affiliate who, in the opinion
of the Subcommittee, are in a position to contribute significantly to the
Company's long-term profit and growth objectives; provided, however, that no
member of the Subcommittee nor any person owning stock processing more than 10
percent of the total combined voting power of all classes of stock of the
Company shall be an Eligible Employee. "Eligible Employee" shall mean the
singular of Eligible Employees.

                  (e) "Employer" shall mean, with respect to any Eligible
Employee, the Company, Lyondell Petrochemical Company, and any Subsidiary or
Affiliate of either, that is the employer of the Eligible Employee.

                  (f) "Fair Market Value" (FMV) of a share of Common Stock shall
be the mean of the highest and lowest sale prices, or the closing sale price of
a share of Common Stock, whichever is higher, on the date in question as
reported on the composite tape for issues listed on the New York Stock Exchange.
If no transactions were reported on the composite tape for the Common Stock on
such date, the FMV shall be computed using the prices reported on the nearest
day preceding the date in question. If the Common Stock should not then be
listed or admitted to trading on such Exchange, FMV shall be the mean of the
closing bid and asked prices on the date in question as furnished by any member
firm of the New York Stock Exchange selected from time to time by the
Subcommittee for that purpose.

                  (g) "Plan" shall mean this 1990 Long-Term Incentive Plan
including any amendments hereof and rules and regulations hereunder.

                  (h) "Pyramiding" shall mean the process whereby an optionee
surrenders shares received from the exercise of a portion of the optionee's
total stock options to satisfy the exercise price for additional option shares.
The additional shares thus obtained may in turn be surrendered at their Fair
Market Value to satisfy the exercise price for yet additional option shares. The
process may be repeated as often as the optionee directs to satisfy the total
exercise price for the options exercised.

                  (i) "Stock Options" shall mean Non-qualified Stock Options,
and shall consist of options to purchase the Common Stock of the Company under
the terms and conditions set forth in Article II.

                  (j) "Stock Rights" shall mean, as of any date, (i) the total
number of shares of Common Stock underlying all outstanding and unexercised
Stock
<PAGE>
 
1990 ARCO Chemical Company Long-Term Incentive Plan                       Page 3

Options held by an Eligible Employee pursuant to the Plan, plus (ii) the number
of DSCs credited to an Eligible Employee on such date.

                  (k) "Subcommittee" shall mean the Long-Term Incentive Plan
Administration Subcommittee of the Board of Directors of the Company.

                  (l) "Subsidiary" or "Affiliate" shall mean (i) any corporation
which is a member of a controlled group of corporations within the meaning of
Section 1563(a) of the Internal Revenue Code of 1986 (the "Code") [determined
without regard to Section 1563(a)(4) and Section 1563(e)(3)(c) of the Code] and
of which the Company is then a member, and (ii) all trades or businesses,
whether or not incorporated, which, under regulations prescribed by the
Secretary of the Treasury pursuant to Section 210(d) of the Employee Retirement
Income Security Act of 1974, are then under common control with the Company.


Section 4.  Administration of the Plan
            --------------------------

            The plan shall be administered by the Subcommittee, which is
authorized to interpret the Plan, to adopt such rules and regulations as it may
from time to time deem necessary for the effective operation of the Plan, and to
act upon all matters relating to the granting of awards under the Plan.  Any
determination, interpretation, construction or other action made or taken
pursuant to the provisions of the Plan by or on behalf of the Subcommittee shall
be final, binding and conclusive for all purposes and upon all persons
including, without limitation, the Company, its subsidiaries and Affiliates,
their respective stockholders, Eligible Employees and their respective
successors in interest.


Article II  STOCK OPTIONS
            -------------

Section 1.  Grants of Stock Options
            -----------------------

            The Subcommittee may grant Stock Options to Eligible Employees on
the terms and conditions set forth in this Plan and on other terms and
conditions consistent with the purposes and provisions of the Plan and within
the appropriate regulations governing such grants.
<PAGE>
 
1990 ARCO Chemical Company Long-Term Incentive Plan                       Page 4

Section 2.  Terms and Conditions for Stock Option Grants
            --------------------------------------------

            All Stock Options granted under the Plan shall be subject to the
following terms and conditions:

                  (a) Option Price The Option Price per share with respect to
                      ------------
each Stock Option shall be fixed by the Subcommittee, but shall not be less than
the Fair Market Value of the Common Stock on the date the Stock Option is
granted.

                  (b) Period of Option A Stock Option shall expire and all
                      ----------------
rights thereunder shall end at the expiration of such period (not exceeding 10
years) after the date the Stock Option is granted as shall be fixed by the
Subcommittee at the time it grants the Stock Option.

                  (c) Exercise of Option A Stock Option may be exercised at such
                      ------------------
time or times, either as to all shares or in installments, as the Subcommittee
shall prescribe when it grants the Stock option and in compliance with pertinent
government regulations. In no event, however, may a Stock Option be exercised
until the expiration of one (1) year following the date of grant.

                  (d) Payment for Shares Every share purchased through the
                      ------------------
exercise of a Stock Option shall be paid for in full in cash within ten business
days following the time of exercise, or, unless the Stock Option expressly
provides otherwise, in shares of Common Stock valued at their Fair market Value
on the date of exercise, or, with respect to options granted prior to January 1,
1992 as to which an optionee has not relinquished the right to pyramid, by
Pyramiding, or a combination thereof.

                  (e) Dividend Share Credits DSCs shall be credited as provided
                      ----------------------
in Article I, Section 3(c). DSCs attributable to exercised, expired or
surrendered Stock Options shall be canceled upon such exercise, expiration or
surrender as provided in Article III.

                  (f) Termination of Employment  If an optionee's employment is
                      -------------------------                                
terminated prior to the expiration of one year from the date of grant of Stock
Options, such Stock Options, and accumulated DSCs pertaining thereto, shall be
cancelled unless the optionee's termination is due to (i) death, (ii) total and
permanent disability, (iii) termination of employment with a right to an
immediate allowance under a retirement plan of the Employer, or (iv) any other
termination of employment in
<PAGE>
 
1990 ARCO Chemical Company Long-Term Incentive Plan                       Page 5

connection with which the Subcommittee, in its sole discretion, has determined
that the optionee's Stock Options shall not be cancelled.

                      If an optionee's employment is terminated following the
expiration of one year from the date of grant of Stock Options, such Stock
Options and accumulated DSCs pertaining thereto, shall be cancelled if the
termination is due to (i) discharge for cause, (ii) resignation without approval
of the Employer (except in conjunction with a right to an immediate allowance
under a retirement plan of the Employer) or (iii) resignation at the initiation
of the Employer (except in conjunction with a right to an immediate allowance
under a retirement plan of the Employer, an economic layoff or a reduction in
force).

                  (g) Expiration Date Extensions In the event of the death of an
                      --------------------------
optionee, the expiration dates of any Stock Options which occur on and after the
date of death and prior to the date on which a fiduciary is qualified, duly
appointed, or otherwise legally empowered to exercise the Stock Options, shall
be extended for 60 days immediately succeeding the date of such qualification,
appointment or empowerment. In the event an optionee is unable to exercise any
Stock Options because of mental or physical disability, or for other reasons
beyond the optionee's control, the Subcommittee may, in its sole discretion,
extend the expiration date(s) to such date(s) as it deems reasonable under the
circumstances.

                  (h) Maximum Grant No individual may receive a grant or grants
                      -------------
of Stock Options in any single calendar year the aggregate number of which
exceeds 25% of the total number of Stock Options granted in that calendar year.


Article III   PERFORMANCE-BASED DIVIDEND SHARE CREDITS
              ----------------------------------------

Section 1.  Cancellation of Credits upon Exercise, Expiration or Surrender of
            -----------------------------------------------------------------
            Stock Option
            ------------

     Upon exercise of any Stock Option, in whole or in part, the credited DSCs
attributable to the exercised Stock Option shall be canceled.  Upon expiration
of any Stock Option at the end of its original maximum term, the credited DSCs
attributable to the expired Stock Option shall be canceled.  An optionee may
elect to surrender for cancellation exercisable Stock Options in whole or in
part.  Upon surrender and cancellation of any such Stock Options, the DSCs
attributable to the surrendered Stock Options shall also be canceled.
<PAGE>
 
1990 ARCO Chemical Company Long-Term Incentive Plan                       Page 6

     The Shares of Common Stock underlying Stock Options exercised, surrendered
or expired pursuant to this Section shall be referred to as the "affected
shares" for purposes of the application of the performance criterion set forth
in Section 2 below.  For purposes of the application of such criterion, the date
of exercise, surrender or expiration shall be referred to as the "determination
date."


Section 2.  Performance-Based Criterion for Dividend Share Credits
            ------------------------------------------------------

     Upon the exercise, expiration or surrender of any Stock Option, the
Subcommittee shall apply the following performance-based criterion to the DSCs
allocable to the affected shares:  In order for the performance criterion to be
attained, the aggregate Fair Market Value of the canceled DSCs must exceed the
aggregate Option Price of the affected shares less their Fair Market Value on
the determination date.

     The criterion shall be applied independently to each grant in the event of
the exercise, cancellation or surrender of Stock Options attributable to
multiple grants on the same date.


Section 3.  Calculation for Cash Payment
            ----------------------------

     If the performance criterion set forth in Section 2 above is attained, a
cash payment shall be made to the optionee in an amount equal to the Fair Market
Value of a share of Common Stock multiplied by the total number of canceled
DSCs, less the amount by which the aggregate Option Price of the affected shares
exceeds the aggregate Fair Market Value of such shares on the determination
date.

     No payment may be made to any covered employee (as defined in proposed
Treasury Regulations Section 1.162(m)) unless the Subcommittee has certified in
writing that the performance criterion set forth in Section 2 above has been
attained.


Article IV                 MISCELLANEOUS PROVISIONS
                           ------------------------

Section 1.  Option Limits
            -------------

            Subject to adjustment as provided in Section 2 of this Article IV,
the number of shares of Common Stock that may be issued upon exercise of Stock
<PAGE>
 
1990 ARCO Chemical Company Long-Term Incentive Plan                       Page 7

Options shall not exceed 2,000,000 in the aggregate over the life of the Plan.
The shares shall be made available from authorized but unissued Common Stock or
from Common Stock issued and held in the treasury of the Company as shall be
determined by the Subcommittee.


Section 2.  Adjustment in Terms of Award
            ----------------------------

            In the event of a reorganization, recapitalization, stock split,
stock dividend, distribution of assets other than pursuant to a normal cash
dividend, combination of shares, merger, consolidation, rights offering, split-
up, split-off, spin-off or any other change in the corporate structure or shares
of the Company, the Subcommittee may, in its discretion, after consultation with
the Chairman of the Board and the President, make appropriate adjustments to
reflect such event in the limitation in Section 1 of this Article IV, the number
of shares of Common Stock covered by, and the exercise price per share
applicable to, outstanding Stock Options, and in the number of DSCs. In the
event that the Subcommittee, after consultation with the Chairman of the Board
and the President, determines that, because of the change in the Company's
business, operations, corporate structure, capital structure, assets or manner
in which it conducts business, which it deems to be extraordinary and material,
the terms of awards theretofore made are no longer suitable to the objectives
which the Subcommittee sought to achieve when it made such awards, it may modify
the terms of any or all such awards in such manner as it may decide is
advisable; provided, however, that no award may be modified in a manner which
would be inconsistent with the intent of Section 8 of this Article IV.


Section 3.  Governmental Regulations
            ------------------------

            The Plan and the grant of Stock Options, the exercise of Stock
Options, and the crediting and payment of DSCs hereunder, and the issuance of
stock, shall be subject to all applicable rules and regulations of governmental
and other authorities.


Section 4.  No Guarantee of Employment
            --------------------------

            The grant of a Stock Option, or credit of a DSC under the Plan,
shall not constitute assurance of continued employment.
<PAGE>
 
1990 ARCO Chemical Company Long-Term Incentive Plan                       Page 8

Section 5.  Assignment or Transfer
            ----------------------

            No Stock Option or DSC shall be assignable or transferable by an
Eligible Employee otherwise than by will or the laws of descent and
distribution.


Section 6.  Rights as Stockholder
            ---------------------

            An Eligible Employee under the Plan shall have no rights of a holder
of Common Stock by virtue of a Stock Option award hereunder, unless and until
certificates for shares of Common Stock are issued to him pursuant to the Plan.
DSCs shall not be considered as dividends on Common Stock for any purpose.


Section 7.  Withholding Taxes
            -----------------

            The Employer shall have the right to withhold from salary or other
remuneration or to otherwise cause the employee (or the executor or
administrator of his estate or his distributee) to make payment of any Federal,
state, local or foreign taxes required to be withheld with respect to the
exercise of any Stock Options or cash settlement of any DSCs.


Section 8.  Amendment and Discontinuance of the Plan
            ----------------------------------------

            The Subcommittee may amend or discontinue the Plan as it shall from
time to time consider desirable, provided that:

(a)  no amendment shall, without further approval by the holders of a majority
of shares represented in person or by proxy and entitled to vote on the subject
at a meeting of stockholders of the Company, change the terms of the Plan so as
to increase the maximum number of shares that may be issued upon exercise of
Stock Options granted under the Plan or credited as DSCs under the plan (other
than as contemplated by Section 2 of this Article IV) reduce the minimum option
price, or extend the maximum option period; and (b) no amendment, discontinuance
or termination shall deprive persons entitled to exercise Stock Options, or to
receive a cash settlement of any DSCs, pursuant to the terms and provisions of
the Plan, of their rights with respect thereto.
<PAGE>
 
1990 ARCO Chemical Company Long-Term Incentive Plan                       Page 9

Section 9.  Gender
            ------

            As used herein, masculine pronouns shall refer to men or women or
both as the context may require.



                                 Document date:  May 12, 1994
                                 -------------               
                                 Third restatement of Plan to
                                 include amendments 1, 2 and 3.

<PAGE>
 
                                                                   Exhibit 10.23

ARCO Chemical Company
Tax Department
3801 West Chester Pike
Newtown Square, Pennsylvania 19073-2387

Louis S. Battista
Vice President &
General Tax Officer


May 31, 1994


Patrick J. Ellingsworth, Esq.
Associate General Tax Officer and Chief Tax Attorney
Atlantic Richfield Company
515 South Flower Street
Los Angeles, CA  90071

Dear Pat:

I wish to commit to writing our understanding with respect to an adjustment to
the Tax Sharing Agreement between Atlantic Richfield Company ("ARCO") and ARCO
Chemical Company ("ACC") that will provide benefits to both parties.

The background leading to this agreement is as follows:  In May 1992, ACC
initiated a prospective tolling agreement between ARCO Chemie Nederland, Ltd.
("ACNL") and ARCO Chemical Products Europe, Inc. ("ACPEI").  The agreement
effectively shifted income from Holland to Belgium and is expected to reduce
ACC's Dutch tax liability.

ACC also filed a refund claim in Holland to apply the tolling agreement
retroactively.  The Dutch tax authorities offered to grant a refund for tax
years 1990 and 1991 in exchange for the reduction of the benefits from the
prospective tolling agreement.  The refund will reduce the amount of foreign
taxes paid in 1990 and 1991 by ACNL.  On an ACC stand-alone basis, the refund
would cause ACC to incur a significant residual U.S. tax liability.  On a
consolidated basis, however, you have informed me that it is very likely that
ARCO would not incur any additional tax liability for the reduction of the Dutch
tax liability, since the consolidated group is expected to have sufficient
"excess" foreign tax credits to cover ACC's residual U.S. tax liability
resulting from the reduction in Dutch taxes.  Because ACC may have been in a
better financial position, on a stand-alone basis, by maintaining the original
tolling agreement, ACC was faced with a dilemma as to whether to accept the
Dutch tax proposal.
<PAGE>
 
May 31, 1994
Page Two

In order to (1) maximize the benefit to both parties and (2) equate the benefits
realized by ACC under the Dutch tax settlement to those realized by ARCO, it was
agreed that ACC would be allowed to use ARCO "excess" foreign tax credits to
cover ACC's stand-alone residual U.S. tax liability. Based on this
understanding, ACNL verbally accepted the Dutch tax proposal on March 22, 1994
and, on April 8, 1994, sent a letter to the Dutch Tax Authorities outlining its
understanding of the terms of the proposed settlement. It is understood that ACC
may use such credits on the assumption that the credits to be used are truly
excess to ARCO.

The mechanics of our proposed adjustment to the Tax Sharing Agreement are as
follows:

A.   ACNL will finalize its formal acceptance of the Dutch tax offer.

B.   ARCO will allow ACC to use ARCO's consolidated excess foreign tax credits
     for 1990 and 1991, including any credits that may be carried back or
     forward to such years, to offset any U.S. federal tax liability that would
     otherwise be incurred on a stand-alone basis as a result of accepting the
     Dutch tax offer.  To the extent that ACC uses such credits, it will not be
     required to reduce its excess foreign tax credits in 1993 and thereafter
     (determined after audit and after application, on a pro-forma basis, of all
     permitted carrybacks and carryovers to 1990), subject to the following two
     provisions:
 
     1.   To the extent that ACC's excess foreign tax credits for 1993 and
          thereafter do not exceed the amount of ARCO excess credits utilized
          from 1990 and 1991, ACC will not be allowed to utilize such excess
          credits for transactions that provide a benefit solely to ACC on a
          stand-alone basis and which do not provide a commensurate benefit on
          an ARCO consolidated basis.

          ACC will be responsible for establishing and maintaining a system that
          will track the utilization of its excess foreign tax credits and
          whether such utilization provides a benefit on an ARCO consolidated
          tax basis.  Upon request, ACC shall provide ARCO with an analysis of
          ACC's excess foreign tax credit position for all relevant periods so
          that ARCO can make an independent determination as to ACC's
          utilization of its excess foreign tax credits.

     2.   Second, to the extent that the amount of ARCO credits used by ACC for
          1990 exceeds $7 million, ACC will be liable for repayment in cash of
          any amount of residual tax liability for 1990 incurred by ARCO (up to
          a maximum of $5 million). Determination of whether ARCO incurs a
          residual tax liability for 1990 shall be made after applying all
          carrybacks and carryforwards to 1990 and after conclusion of the IRS
          examination for 1990 (delivery of the Final RAR).

No interest shall be payable on any obligation hereunder.
<PAGE>
 
May 31, 1994
Page Three

Please sign and return a copy of this letter if ARCO agrees with this adjustment
to the Tax Sharing Agreement.  This adjustment relates solely to the Dutch
refund described herein and shall not be applied by either ACC or ARCO as a
precedent for any other transaction, event or practice.


                              /s/ Louis S. Battista
                              ---------------------
                              Louis S. Battista
                              Vice President and General Tax Officer
                              ARCO Chemical Company


/s/ P. J. Ellingsworth
- ----------------------
P. J. Ellingsworth
Associate General Tax Officer and
Chief Tax Attorney
Atlantic Richfield Company

<PAGE>
 
              ARCO CHEMICAL COMPANY AND CONSOLIDATED SUBSIDIARIES
 
  COMPUTATION OF THE RATIO OF EARNINGS TO FIXED CHARGES (MILLIONS OF DOLLARS)
 
<TABLE>
<CAPTION>
                                                        YEARS ENDED DECEMBER 31,
                                                        ------------------------
                                                        1990 1991 1992 1993 1994
                                                        ---- ---- ---- ---- ----
<S>                                                     <C>  <C>  <C>  <C>  <C>
Pretax income from continuing operations............... $467 $319 $322 $311 $416
Add:
  Interest expense.....................................   51  101   91  105   85
  Rental expense factor................................   21   22   26   20   22
                                                        ---- ---- ---- ---- ----
Earnings available for fixed charges................... $539 $442 $439 $436 $523
                                                        ==== ==== ==== ==== ====
Interest expense....................................... $ 51 $101 $ 91 $105  $85
Add capitalized interest...............................   24   39   37   --    3
Rental expense factor..................................   21   22   26   20   22
                                                        ---- ---- ---- ---- ----
Fixed charges.......................................... $ 96 $162 $154 $125 $110
                                                        ==== ==== ==== ==== ====
Ratio of earnings to fixed charges.....................  5.6  2.7  2.9  3.5  4.8
                                                        ==== ==== ==== ==== ====
</TABLE>
 
                                   EXHIBIT 12

<PAGE>
 
                             ARCO CHEMICAL COMPANY
 
                                  SUBSIDIARIES
 
 
<TABLE>
<CAPTION>
                                                                      JURISDICTION
           NAME                               ENTITY                  OF FORMATION
           ----                         -------------------           ------------
<S>                                     <C>                           <C>
ARCO Chemie Nederland, Ltd.             corporation                     Delaware
ARCO Chimie France SNC                  partnership                     France
POSM II Limited Partnership, L.P.       limited partnership             Delaware
ARCO Chemical Delaware Company          corporation                     Delaware
ARCO Chemical Technology, L.P.          limited partnership             Delaware
The Meadows Corporation                 corporation                     Delaware
</TABLE>
 
The subsidiaries whose names are not listed above, if considered in the
aggregate as a single subsidiary, would not constitute a significant subsidiary
of the company.
 
                                   EXHIBIT 21

<PAGE>
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
  We consent to the incorporation by reference in the following registration
statements of ARCO Chemical Company and Subsidiaries: Registration Statement on
Form S-8 (No. 33-17707), Registration Statement on Form S-8 (No. 33-23867),
Registration Statement on Form S-8 (No. 33-38062), and Registration Statement
on Form S-8 (No. 33-23241) of our report dated February 10, 1995 on our audits
of the consolidated financial statements of ARCO Chemical Company and
Subsidiaries as of December 31, 1994 and 1993, and for each of the three years
in the period ended December 31, 1994 which report is included in this Annual
Report on Form 10-K.
 
                                          COOPERS & LYBRAND L.L.P.
 
Philadelphia, Pennsylvania
February 28, 1995
 
                                   EXHIBIT 23

<PAGE>
 
                             ARCO CHEMICAL COMPANY
 
                               POWER OF ATTORNEY
 
  Each person whose signature appears below hereby constitutes and appoints
Alan R. Hirsig, Robert J. Millstone, John A. Shaw, and Walter J. Tusinski, and
each of them, his or her true and lawful attorneys-in-fact and agents, with
full power of substitution and resubstitution, for him or her and in his or her
name, place and stead, in any and all capacities, to effect the following acts
as necessary or appropriate for the conduct of the business and affairs of ARCO
Chemical Company (the "Company"):
 
    I. In connection with any outstanding security of the Company registered
  pursuant to Section 12 of the Securities Exchange Act of 1934, as amended
 
      (1) to execute any singular or periodic report required or permitted
    to be filed under the Securities Exchange Act of 1934, as amended,
    including SPECIFICALLY the Company's Annual Report on Form 10-K for the
    fiscal year ended December 31, 1994; and
 
      (2) to file or cause to be filed such report with the Commission, any
    national or foreign securities exchange, any securities industry self-
    regulatory organization, any state or other jurisdiction of the United
    States, and any jurisdiction outside the United States, in each case as
    required or permitted by applicable law;
 
    II. In connection with the issuance, offering, or sale of any securities
  authorized by the Board of Directors of the Company or by the Executive
  Committee thereof pursuant to due authorization by such Board, or in
  connection with the issuance, offering or sale of any security,
  participation or interest in any employee or executive compensation or
  benefit plan authorized and approved by the Board of Directors of the
  Company or by the Executive or Compensation Committees thereof pursuant to
  due authorization by such Board
 
      (1) to execute and file, or cause to be filed, with the Securities
    and Exchange Commission (the "Commission"), (A) Registration Statements
    and any and all amendments (including post-effective amendments)
    thereto, and to file, or cause to be filed, all exhibits thereto and
    other documents in connection therewith as required or permitted by the
    Commission in connection with such registration under the Securities
    Act of 1933, as amended, and (B) any singular or periodic report or
    other document required or permitted to be filed by the Company with
    the Commission pursuant to the Securities Exchange Act of 1934, as
    amended;
 
      (2) to execute and file, or cause to be filed, any application for
    registration or exemption therefrom, or any report or any other
    document required or permitted to be filed by the Company under the
    Blue Sky or securities laws of any state or other jurisdiction of the
    United States, and to furnish any other information required in
    connection therewith, including any reports or other documents required
    or permitted to be filed subsequent to the issuance of such securities;
 
      (3) to execute and file, or cause to be filed, any application for
    registration or exemption therefrom under the securities laws of any
    jurisdiction outside the United States, including any reports or other
    documents required or permitted to be filed subsequent to the issuance
    of such securities; and
 
      (4) to execute and file, or cause to be filed, any application for
    listing such securities on any national or foreign securities exchange;
 
granting to such attorneys-in-fact and agents, and each of them, full power and
authority to do and perform each and every act required to be done as he or she
might or could do in person, hereby ratifying and confirming all that such
attorneys-in-fact and agents, and each of them, may lawfully do or cause to be
done by virtue of this Power of Attorney.
 
                                   EXHIBIT 24
<PAGE>
 
  Each such attorney-in-fact and agent shall have the right to indemnification
for any action taken or omitted pursuant to this Power of Attorney provided in
the By-Laws of the Company to officers and directors for service as such,
including, but not limited to, the non-exclusivity provisions of such By-Laws.
 
  Each person whose signature appears below may at any time revoke this Power
of Attorney, as to himself or herself only, by an instrument in writing
specifying that this Power of Attorney is revoked as to him or her as of the
date of delivery of such revocation to the Secretary of the Company or at a
subsequent specified date. This Power of Attorney shall be revoked
automatically with respect to any person whose signature appears below
effective on the date he or she ceases to be a member of the Board of
Directors, or in the case of Mr. Shaw, on the date he ceases to be principal
accounting officer of the Company. Any revocation shall not void or otherwise
affect any acts performed by any attorney-in-fact and agent named herein
pursuant to this Power of Attorney prior to the effective date of such
revocation.
 
  This instrument may be executed in multiple counterparts each of which shall
be deemed an original and all of which together shall be deemed one instrument.
 
              SIGNATURE                         TITLE                DATE
              ---------                         -----                ----
                                         
        /s/ Lodwrick M. Cook               Chairman of the 
- -------------------------------------    Board and Director 
          Lodwrick M. Cook

         /s/ Alan R. Hirsig               President, Chief
- -------------------------------------     Executive Officer
           Alan R. Hirsig                   and Director
 
       /s/ Marvin O. Schlanger             Executive Vice
- -------------------------------------     President, Chief
         Marvin O. Schlanger              Operating Officer
                                            and Director
 
        /s/ Jack E. Oppasser                 Senior Vice
- -------------------------------------       President and
          Jack E. Oppasser                    Director
 
       /s/ Walter J. Tusinski
- -------------------------------------        Senior Vice
         Walter J. Tusinski               President, Chief
                                          Financial Officer       February 16,
                                            and Director                  1995
 
         /s/ Peter C. Harris             Vice President and
- -------------------------------------         Director
           Peter C. Harris
 
        /s/ Ronald J. Arnault                 Director
- -------------------------------------
          Ronald J. Arnault
 
         /s/ Walter F. Beran                  Director 
- -------------------------------------
           Walter F. Beran
 
 
       /s/ E. Kent Damon, Jr.                 Director
- -------------------------------------
         E. Kent Damon, Jr.
 
        /s/ Marie L. Knowles                  Director
- -------------------------------------
          Marie L. Knowles
<PAGE>
 
              SIGNATURE                         TITLE                DATE
              ---------                         -----                ----
                                     
       /s/ James A. Middleton                 Director 
- -------------------------------------
         James A. Middleton

          /s/ Frank Savage                    Director            February 16,
- -------------------------------------                                 1995  
            Frank Savage                      
 
     /s/ Robert H. Stewart, III               Director 
- -------------------------------------         
       Robert H. Stewart, III
 

<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 5
<MULTIPLIER> 1,000,000
       
<S>                                        <C>
<PERIOD-TYPE>                              YEAR
<FISCAL-YEAR-END>                          DEC-31-1994
<PERIOD-START>                             JAN-01-1994
<PERIOD-END>                               DEC-31-1994
<CASH>                                             144
<SECURITIES>                                         0
<RECEIVABLES>                                      565
<ALLOWANCES>                                         0
<INVENTORY>                                        397
<CURRENT-ASSETS>                                  1124
<PP&E>                                            3524
<DEPRECIATION>                                    1303
<TOTAL-ASSETS>                                    3737
<CURRENT-LIABILITIES>                              545
<BONDS>                                            898
<COMMON>                                           100
                                0
                                          0
<OTHER-SE>                                        1559
<TOTAL-LIABILITY-AND-EQUITY>                      3737
<SALES>                                           3423
<TOTAL-REVENUES>                                  3423
<CGS>                                             2586
<TOTAL-COSTS>                                     2586
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  85
<INCOME-PRETAX>                                    416
<INCOME-TAX>                                       147
<INCOME-CONTINUING>                                269
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       269
<EPS-PRIMARY>                                     2.80
<EPS-DILUTED>                                     2.80
        

</TABLE>


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