FINANCIAL SECTION TABLE OF CONTENTS Financial Review Financial Summary ......................................................... F3 Quarterly Information ..................................................... F4 Management's Discussion and Analysis of Financial Condition and Results of Operations ............................................................... F5-F9 Report of Independent Accountants ........................................... F10 Consolidated Financial Statements Statement of Income ....................................................... F11 Balance Sheet ............................................................. F12 Statement of Shareholders' Equity ......................................... F13 Statement of Cash Flows ................................................... F14 Notes to Consolidated Financial Statements 1. Summary of Accounting Policies ........................................ F15 2. Accounting Change ..................................................... F16 3. Exxon and Mobil Merger Agreement ...................................... F16 4. Miscellaneous Financial Information ................................... F16 5. Cash Flow Information ................................................. F16 6. Leased Facilities ..................................................... F16 7. Additional Working Capital Data ....................................... F17 8. Equity Company Information ............................................ F17 9. Investments and Advances .............................................. F18 10. Investment in Property, Plant and Equipment ........................... F18 11. Capital ............................................................... F19 12. Leveraged Employee Stock Ownership Plan (LESOP) ....................... F19 13. Interest Rate Swap, Currency Exchange and Commodity Contracts ......... F20 14. Fair Value of Financial Instruments ................................... F20 15. Long-Term Debt ........................................................ F20 16. Incentive Program ..................................................... F21 17. Annuity Benefits and Other Postretirement Benefits .................... F21 18. Litigation and Other Contingencies .................................... F23 19. Disclosures about Segments and Related Information .................... F24 20. Income, Excise and Other Taxes ........................................ F25 Supplemental Information on Oil and Gas Exploration and Production Activities F26-F30 Operating Summary ........................................................... F31

F1 FINANCIAL SUMMARY

1998 1997 1996 1995 1994 - - ------------------------------------------------------------------------------------------------------------------------------------ (millions of dollars, except per share amounts) Sales and other operating revenue Petroleum and natural gas $ 104,051 $ 120,644 $ 118,012 $ 107,749 $ 100,409 Chemicals 10,504 12,195 11,430 11,737 9,544 Other 862 2,303 2,101 2,318 2,175 ------------------------------------------------------------- Sales and other operating revenue, including excise taxes $ 115,417 $ 135,142 $ 131,543 $ 121,804 $ 112,128 Earnings from equity interests and other revenue 2,355 2,100 2,706 2,116 1,776 ------------------------------------------------------------- Total revenue $ 117,772 $ 137,242 $ 134,249 $ 123,920 $ 113,904 ============================================================= Earnings Petroleum and natural gas Exploration and production $ 2,708 $ 4,693 $ 5,058 $ 3,412 $ 2,782 Refining and marketing 2,458 2,063 885 1,272 1,389 ------------------------------------------------------------- Total petroleum and natural gas $ 5,166 $ 6,756 $ 5,943 $ 4,684 $ 4,171 Chemicals 1,213 1,368 1,199 2,018 954 Other operations 384 434 433 479 409 Corporate and financing (323) (98) (65) (711) (434) ------------------------------------------------------------- Income before cumulative effect of accounting change $ 6,440 $ 8,460 $ 7,510 $ 6,470 $ 5,100 Cumulative effect of accounting change (70) -- -- -- -- ------------------------------------------------------------- Net income $ 6,370 $ 8,460 $ 7,510 $ 6,470 $ 5,100 ============================================================= Net income per common share Before cumulative effect of accounting change $ 2.64 $ 3.41 $ 3.01 $ 2.59 $ 2.04 Cumulative effect of accounting change (0.03) -- -- -- -- ------------------------------------------------------------- Net income $ 2.61 $ 3.41 $ 3.01 $ 2.59 $ 2.04 ============================================================= Net income per common share -- assuming dilution Before cumulative effect of accounting change $ 2.61 $ 3.37 $ 2.99 $ 2.58 $ 2.03 Cumulative effect of accounting change (0.03) -- -- -- -- ------------------------------------------------------------- Net income $ 2.58 $ 3.37 $ 2.99 $ 2.58 $ 2.03 ============================================================= Cash dividends per common share $ 1.640 $ 1.625 $ 1.560 $ 1.500 $ 1.455 Net income to average shareholders' equity (percent) 14.6 19.4 17.9 16.6 14.1 Net income to total revenue (percent) 5.4 6.2 5.6 5.2 4.5 Working capital $ (1,819) $ 1,538 $ 405 $ (1,418) $ (3,033) Ratio of current assets to current liabilities 0.91 1.08 1.02 0.92 0.84 Total additions to property, plant and equipment $ 8,310 $ 7,392 $ 7,132 $ 7,201 $ 6,568 Property, plant and equipment, less allowances $ 65,199 $ 66,414 $ 66,607 $ 65,446 $ 63,425 Total assets* $ 92,630 $ 96,064 $ 95,527 $ 91,296 $ 87,862 Exploration expenses, including dry holes $ 863 $ 753 $ 763 $ 693 $ 666 Research and development costs $ 549 $ 529 $ 520 $ 525 $ 558 Long-term debt* $ 4,530 $ 7,050 $ 7,236 $ 7,778 $ 8,831 Total debt* $ 8,778 $ 9,952 $ 9,746 $ 10,025 $ 12,689 Fixed charge coverage ratio* 9.0 11.5 10.4 8.6 7.0 Debt to capital (percent)* 16.2 17.8 17.7 19.0 24.3 Shareholders' equity at year-end $ 43,750 $ 43,660 $ 43,542 $ 40,436 $ 37,415 Shareholders' equity per common share $ 18.02 $ 17.77 $ 17.53 $ 16.28 $ 15.07 Average number of common shares outstanding (millions) 2,440 2,473 2,484 2,484 2,483 Number of registered shareholders at year-end (thousands) 633 641 610 603 608 Wages, salaries and employee benefits $ 5,577 $ 5,695 $ 5,710 $ 5,799 $ 5,881 Number of employees at year-end (thousands) 79 80 79 82 86

* 1998 amounts reflect the de-consolidation of majority owned power companies in Hong Kong and China retroactive to January 1, 1998 (see note 8). F3

QUARTERLY INFORMATION 1998 1997 ------------------------------------------- ------------------------------------------- First Second Third Fourth First Second Third Fourth Quarter Quarter Quarter Quarter Year Quarter Quarter Quarter Quarter Year - - -------------------------------------------------------------------------------------------------------------------------------- Volumes Production of crude oil (thousands of barrels daily) and natural gas liquids 1,624 1,609 1,553 1,484 1,567 1,625 1,584 1,558 1,631 1,599 Refinery throughput 3,901 3,934 3,941 3,936 3,928 4,006 3,962 4,041 4,036 4,011 Petroleum product sales 5,400 5,409 5,431 5,491 5,433 5,350 5,404 5,415 5,548 5,430 Natural gas production (millions of cubic feet daily) available for sale 7,209 5,564 5,207 7,317 6,322 7,500 5,649 5,189 7,037 6,339 (thousands of metric tons) Chemical prime product sales 4,243 4,339 4,325 4,297 17,204 4,161 4,329 4,433 4,378 17,301 Summarized financial data Sales and other operating (millions of dollars) revenue $ 29,332 28,808 27,907 29,370 115,417 34,720 33,679 32,381 34,362 135,142 Gross profit* $ 12,977 13,308 12,900 14,332 53,517 14,596 14,619 14,277 15,160 58,652 Net income as reported $ 1,890 1,620 1,400 1,530 6,440 2,175 1,965 1,820 2,500 8,460 Cumulative effect of accounting change $ (70) - - - (70) - - - - - Net income as restated $ 1,820 1,620 1,400 1,530 6,370 2,175 1,965 1,820 2,500 8,460 Per share data Net income per common share (dollars per share) as reported $ 0.77 0.66 0.58 0.63 2.64 0.87 0.79 0.74 1.01 3.41 Cumulative effect of accounting change $ (0.03) - - - (0.03) - - - - - Net income per common share as restated $ 0.74 0.66 0.58 0.63 2.61 0.87 0.79 0.74 1.01 3.41 Net income per common share - assuming dilution $ 0.73 0.65 0.58 0.62 2.58 0.86 0.78 0.73 1.00 3.37 Dividends per common share $ 0.410 0.410 0.410 0.410 1.640 0.395 0.410 0.410 0.410 1.625 Dividends per preferred share $ 1.170 1.170 1.170 1.170 4.680 1.170 1.170 1.170 1.170 4.680 Common stock prices High $ 70.000 76.000 73.813 77.313 77.313 55.625 65.125 67.250 66.875 67.250 Low $ 56.625 65.375 62.000 69.438 56.625 48.250 49.875 58.625 54.750 48.250

*Gross profit equals sales and other operating revenue less estimated costs associated with products sold. The price range of Exxon Common Stock is based on the composite tape of the several U.S. exchanges where Exxon Common Stock is traded. The principal market where Exxon Common Stock (XON) is traded is the New York Stock Exchange, although the stock is traded on other exchanges in and outside the United States. At January 31, 1999, there were 633,151 holders of record of Exxon Common Stock. On January 27, 1999, the corporation declared a $0.410 dividend per common share, payable March 10, 1999. F4 MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS REVIEW OF 1998 RESULTS Net income of $6,370 million was down $2,090 million or 25 percent from last year's record of $8,460 million. The decline was driven by weaker crude oil prices, which on average were over $6.00 per barrel or 33 percent lower than last year. Average crude oil prices for the year were at their lowest level in over twenty years. Earnings were also adversely affected by lower natural gas prices, weaker chemicals margins and depressed copper and coal prices. However, downstream operations achieved their second highest level of earnings ever in 1998, partly offsetting the weakness seen in the other operating segments. Results in 1998 included a $70 million charge relating to an accounting change, while 1997 net income included $305 million of non-recurring credits. Revenue for 1998 totaled $118 billion, down 14 percent from 1997, and the cost of crude and product purchases declined 22 percent. The combined total of operating costs (including operating, selling, general, administrative, exploration, depreciation and depletion expenses from the consolidated statement of income and Exxon's share of similar costs for equity companies) in 1998 was $28 billion, down over one billion dollars from 1997. Lower operating costs resulted primarily from a stronger U.S. dollar, reduced energy costs and the de-consolidation of majority owned power companies in Hong Kong and China mentioned below. Excluding these effects, Exxon's operating efficiencies continued to offset the impact of inflation and new business activity growth. Interest expense in 1998 declined $315 million to $100 million, principally due to the de-consolidation of power companies mentioned below and favorable foreign exchange effects. During the fourth quarter of 1998, Exxon de-consolidated the majority owned power companies in Hong Kong and China retroactive to January 1, 1998. Although Exxon's 1998 net income was not affected by the de-consolidation, there were several impacts to the 1998 balance sheet (see note 8). These power companies are now accounted for as equity companies, since the minority shareholder in these companies has substantive participating management rights. These rights include the minority shareholder's approval of operating policies, expense budgets, financing and investment plans and management compensation and succession plans. Exploration and Production Exploration and production earnings of $2,708 million declined substantially from last year reflecting lower crude prices which on average were over $6.00 per barrel lower than 1997. Earnings were also adversely affected by lower U.S. and international natural gas prices. Liquids production was 1,567 kbd (thousands of barrels daily) compared to 1,599 kbd last year. The fourth quarter Longford plant outage in Australia, along with natural field declines in mature areas, were only partly offset by increased Canadian heavy oil production, increased production from new developments in the North Sea and Azerbaijan and increased Malaysian output. Natural gas production of 6,322 mcfd (millions of cubic feet daily) was essentially unchanged from 1997. Earnings from U.S. exploration and production were $839 million, down from $1,634 million during 1997. Outside the U.S., exploration and production earnings were $1,869 million, down $1,000 million, after excluding non-recurring credits of $190 million in 1997. Refining and Marketing Refining and marketing earnings increased $395 million to $2,458 million. Downstream industry margins in 1998 were generally higher than 1997. European refining margins were stronger, but were partly offset by weaker margins in the U.S. and Asia-Pacific. Marketing margins improved in most geographic areas, particularly the U.K. and the U.S. Petroleum product sales of 5,433 kbd were up from 1997 and were the highest in 24 years, despite the impact of weaker economic conditions in Asia-Pacific. Refinery throughput was 3,928 kbd compared to 4,011 kbd in 1997. In the U.S., refining and marketing earnings were $625 million, up $32 million from the prior year. Refining and marketing operations outside the U.S. earned $1,833 million, an increase of $363 million from 1997. Chemicals Earnings from chemicals operations totaled $1,213 million, down $155 million or 11 percent from 1997. Chemicals margins declined during the year as the result of weaker industry commodity prices. Chemical prime product sales of 17,204 thousand metric tons were down slightly from last year's record levels as higher sales in North America and Europe were offset by lower demand in Asia-Pacific markets. Other Operations Earnings from other operating segments totaled $384 million, a decrease of $50 million from last year, reflecting significantly lower copper prices, as well as lower international coal prices. The effect of lower prices was partly offset by record copper and coal production, lower operating expenses and favorable foreign exchange effects. Corporate and Financing Corporate and financing expenses, after excluding non-recurring credits of $115 million in 1997, increased $110 million to $323 million in 1998, reflecting higher tax-related charges. REVIEW OF 1997 RESULTS Record net income of $8,460 million in 1997 compared with the previous record of $7,510 million in 1996. Despite lower crude oil prices, earnings growth resulted from improved downstream margins, higher petroleum product and chemical sales and lower unit operating expenses. Results in 1997 included $305 million of non- recurring credits (all in the fourth quarter). Of these, $190 million were the result of foreign exchange impacts on deferred income tax liabilities. The remainder ($115 million) was U.S. tax related. 1996 included $535 million of non-recurring credits from tax settlements ($125 million in the F5 first quarter and $410 million in the fourth quarter). Of the $535 million, $305 million was in the U.S. and $230 million was non-U.S. Revenue for 1997 totaled $137 billion, up 2 percent from 1996. The cost of crude and product purchases increased 3 percent. The combined total of operating costs in 1997 was $29 billion, flat with 1996. Lower operating costs resulting from a stronger U.S. dollar were offset by expenses from higher sales volumes, higher exploration and production venture spending, and additional reported costs from consolidation of a Japanese affiliate following Exxon's acquisition of a controlling interest. Exxon's operating efficiencies continued to offset the impact of inflation. Unit operating expenses were reduced in most business segments on higher sales volumes in 1997. Interest expense in 1997 was $415 million compared to $464 million in 1996. Exploration and Production Exploration and production earnings declined from the prior year reflecting lower crude prices which on average were about $1.50 per barrel lower than 1996. Liquids production of 1,599 kbd was similar to the prior year. Increased Canadian heavy oil production and volumes from new developments, primarily in the North Sea and Australia, were offset by scheduled maintenance, field declines, and property sales. Natural gas production of 6,339 mcfd was down somewhat from 1996, reflecting warmer European weather. Earnings from U.S. exploration and production were $1,634 million, down from $1,781 million during 1996. Outside the U.S., exploration and production earnings were $2,869 million, down $178 million, after excluding non-recurring credits of $190 million in 1997 related to foreign exchange impacts on deferred taxes and $230 million in 1996 associated with non-U.S. tax settlements. Refining and Marketing Downstream industry margins improved from the low levels seen in 1996. Refining margins in the U.S. and Europe strengthened in 1997 and marketing margins benefited from an improved U.K. retail environment. Petroleum product sales of 5,430 kbd were up 4 percent from 1996, with volume growth in all major geographic areas. Refinery throughput was 4,011 kbd, up 6 percent from 1996, and the highest since 1980. In the U.S., refining and marketing earnings were $593 million, up $424 million from the prior year. Refining and marketing operations outside the U.S. earned $1,470 million, an increase of $754 million from 1996. Chemicals Earnings from chemical operations totaled $1,368 million, up $169 million or 14 percent from 1996. Exxon achieved prime product sales of 17,301 thousand metric tons, an increase of 10 percent over 1996 and a fourth consecutive record sales year. Chemical commodity margins also improved in 1997 on generally higher prices and lower feedstock costs. Other Operations Earnings from other operating segments of $434 million were flat with 1996. Copper and coal production from continuing operations were at record levels. Copper realizations were higher, while coal prices were lower. Corporate and Financing Full year corporate and financing expenses, excluding one-time credits related to tax settlements of $115 million in 1997 and $305 million in 1996, declined $157 million to $213 million reflecting lower tax and debt-related charges. EXXON AND MOBIL MERGER AGREEMENT On December 1, 1998, Exxon Corporation and Mobil Corporation signed an agreement to merge the two companies subject to shareholder approval, regulatory reviews and other conditions. Under the terms of the agreement, each common share of Mobil will be converted into 1.32015 common shares of Exxon. As a result of the merger, Exxon shareholders will own about 70 percent of the combined company and Mobil shareholders will own about 30 percent. Upon completion of the merger, the company's name will be Exxon Mobil Corporation. It is intended that the merger will qualify as a tax-free reorganization in the U.S., and that it will be accounted for on a "pooling of interests" basis. In addition, the merger agreement provides for payment of termination fees of $1.5 billion under certain circumstances. Exxon and Mobil also have entered into an option agreement that grants Exxon the option under specified circumstances to purchase up to approximately 14.9 percent of the authorized but unissued common stock of Mobil. MARKET RISKS, INFLATION AND OTHER UNCERTAINTIES In the past, crude, product and chemical prices have fluctuated widely in response to changing market forces. The impacts of these price fluctuations on earnings from exploration and production operations, refining and marketing operations and chemical operations have been varied, tending at times to be offsetting. In 1998, average annual oil prices were the lowest in two decades because of lower energy demand caused by the economic downturn in Asia, milder winter weather and continued high levels of production by the world's major oil producing countries. The markets for crude oil and natural gas have a history of significant price volatility. Although prices will occasionally drop precipitously, industry prices over the long term will continue to be driven by market supply and demand fundamentals. Accordingly, the corporation tests the viability of its oil and gas operations based on long-term price projections. The corporation's assessment is that its operations will continue to be successful in a variety of market conditions. This is the outcome of disciplined investment and asset management programs. F6 MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS Investment opportunities are tested against a variety of market conditions, including low price scenarios. As a result, investments that would succeed only in highly favorable price environments are screened out of the investment plan. In addition, the corporation has had an aggressive asset management program, in which under-performing assets are either improved to acceptable levels or divested. The asset management program involves a disciplined, regular review to ensure that all assets are contributing to the corporation's strategic and financial objectives. The result has been the creation of a very efficient capital base. In 1998, no oil or gas assets required impairment. The effectiveness of this investment and asset management process is reflected by the fact that the corporation has long been an industry leader in Return on Capital Employed and Return on Shareholders' Equity. The corporation makes very limited use of commodity forwards, swaps and futures contracts of short duration to mitigate the risk of unfavorable price movements on certain crude, natural gas and petroleum product purchases and sales. Commodity price exposure related to these contracts is not material. The corporation conducts business in many foreign currencies and is subject to foreign currency exchange rate risk on cash flows related to sales, expenses, financing and investment transactions. The impacts of fluctuations in foreign currency exchange rates on Exxon's geographically diverse operations are often varied and at times offsetting in amount. As discussed in note 13 to the consolidated financial statements, the corporation makes very limited use of currency exchange contracts to reduce the risk of adverse foreign currency movements related to certain foreign currency debt obligations. Exposure from market rate fluctuations related to these contracts is not material. Aggregate foreign exchange transaction gains and losses included in net income are discussed in note 4 to the consolidated financial statements. The corporation is exposed to changes in interest rates, primarily as a result of its short-term and long-term debt with both fixed and floating interest rates. The corporation makes very limited use of interest rate swap agreements to adjust the ratio of fixed and floating rates in the debt portfolio, as discussed in note 13 to the consolidated financial statements. The impact of a 100 basis point change in interest rates affecting the corporation's debt would not be material to earnings, cash flow or fair value. The general rate of inflation in most major countries of operation has been relatively low in recent years, and the associated impact on operating costs has been countered by cost reductions from efficiency and productivity improvements. The operations and earnings of the corporation and its affiliates throughout the world have been, and may in the future be, affected from time to time in varying degree by political developments and laws and regulations, such as forced divestiture of assets; restrictions on production, imports and exports; price controls; tax increases and retroactive tax claims; expropriation of property; cancellation of contract rights and environmental regulations. Both the likelihood of such occurrences and their overall effect upon the corporation vary greatly from country to country and are not predictable. SITE RESTORATION AND OTHER ENVIRONMENTAL COSTS Over the years the corporation has accrued provisions for estimated site restoration costs to be incurred at the end of the operating life of certain of its facilities and properties. In addition, the corporation accrues provisions for environmental liabilities in the many countries in which it does business when it is probable that obligations have been incurred and the amounts can be reasonably estimated. This policy applies to assets or businesses currently owned or previously disposed. The corporation has accrued provisions for probable environmental remediation obligations at various sites, including multi-party sites where Exxon has been identified as one of the potentially responsible parties by the U.S. Environmental Protection Agency. The involvement of other financially responsible companies at these multi-party sites mitigates Exxon's actual joint and several liability exposure. At present, no individual site is expected to have losses material to Exxon's operations, financial condition or liquidity. Charges made against income for site restoration and environmental liabilities were $162 million in 1998, $140 million in 1997 and $146 million in 1996. At the end of 1998, accumulated site restoration and environmental provisions, after reduction for amounts paid, amounted to $2.6 billion. Exxon believes that any cost in excess of the amounts already provided for in the financial statements would not have a materially adverse effect upon the corporation's operations, financial condition or liquidity. In 1998, the corporation spent $1,321 million (of which $432 million were capital expenditures) on environmental conservation projects and expenses worldwide, mostly dealing with air and water conservation. Total expenditures for such activities are expected to be about $1.5 billion in both 1999 and 2000 (with capital expenditures representing about 40 percent of the total). TAXES Income, excise and all other taxes and duties totaled $41.3 billion in 1998, a decrease of $2.6 billion or 6 percent from 1997. Income tax expense, both current and deferred, was $2.6 billion compared to $4.3 billion in 1997, reflecting lower pre-tax income in 1998, the impact of lower foreign tax rates and favorable resolution of tax-related issues. The effective tax rate was 32.1 percent in 1998 versus 36.4 percent in 1997. Excise and all other taxes and duties declined $0.9 billion to $38.6 billion, reflecting lower prices. F7 Income, excise and all other taxes and duties totaled $43.9 billion in 1997, essentially unchanged from 1996. Income tax expense, both current and deferred, was $4.3 billion compared to $4.4 billion in 1996, reflecting higher pre-tax income and a lower effective tax rate -- 36.4 percent in 1997 versus 39.9 percent in 1996. Excise and all other taxes and duties at $39.5 billion compared to $39.4 billion in 1996. LIQUIDITY AND CAPITAL RESOURCES In 1998, cash provided by operating activities totaled $11.1 billion, down $3.6 billion from 1997. Major sources of funds were net income of $6.4 billion and non-cash provisions of $5.3 billion for depreciation and depletion. Cash used in investing activities totaled $8.0 billion, up $1.2 billion from 1997 primarily as a result of higher additions to property, plant and equipment. Cash used in financing activities was $5.7 billion. Dividend payments on common shares increased from $1.625 per share to $1.640 per share and totaled $4.0 billion, a payout of 63 percent. Total consolidated debt decreased by $1.2 billion to $8.8 billion, reflecting the de-consolidation of majority owned companies in Hong Kong and China discussed in note 8 to the consolidated financial statements, partially offset by $1.3 billion of increased debt. Shareholders' equity increased by $0.1 billion to $43.8 billion. The ratio of debt to capital decreased to 16 percent, reflecting lower debt levels. During 1998, Exxon purchased 44.6 million shares of its common stock for the treasury at a cost of $3.1 billion. These purchases reflect both the increased share repurchases announced in the first quarter of 1997, as well as purchases to offset shares issued in conjunction with the company's benefit plans and programs. Purchases were made in both the open market and through negotiated transactions. As a consequence of the proposed merger of Exxon and Mobil announced in December, the repurchase program to reduce the number of Exxon shares outstanding was discontinued. In 1997, cash provided by operating activities totaled $14.7 billion, up $1.5 billion from 1996. Major sources of funds were net income of $8.5 billion and non-cash provisions of $5.4 billion for depreciation and depletion. Cash used in investing activities totaled $6.8 billion, up $0.3 billion from 1996 primarily as a result of higher additions to property, plant and equipment. Cash used in financing activities was $6.7 billion in 1997. Dividend payments on common shares increased from $1.560 per share to $1.625 per share and totaled $4.0 billion, a payout of 48 percent. Total consolidated debt increased by $0.2 billion to $10.0 billion. Shareholders' equity increased by $0.2 billion to $43.7 billion. The ratio of debt to capital remained at 18 percent in 1997, the same as 1996. During 1997, Exxon purchased 43.2 million shares of its common stock for the treasury at a cost of $2.6 billion. These purchases reflect both the increased share repurchases announced in the first quarter of 1997, as well as purchases to offset shares issued in conjunction with the company's benefit plans and programs. Purchases were made in both the open market and through negotiated transactions. In 1998 and 1997, the corporation strengthened its financial position and flexibility to meet future financial needs. Although the corporation issues long-term debt from time to time and maintains a revolving commercial paper program, internally generated funds cover the majority of its financial requirements. As discussed in note 13 to the consolidated financial statements, the corporation's financial derivative activities are limited to simple risk management strategies. The corporation does not trade in financial derivatives nor does it use financial derivatives with leveraged features. The corporation maintains a system of controls that includes a policy covering the authorization, reporting and monitoring of derivative activity. The corporation's derivative activities pose no material credit or market risks to Exxon's operations, financial condition or liquidity. As discussed in note 18 to the consolidated financial statements, a number of lawsuits, including class actions, were brought in various courts against Exxon Corporation and certain of its subsidiaries relating to the accidental release of crude oil from the tanker Exxon Valdez in 1989. Essentially all of these lawsuits have now been resolved or are subject to appeal. On September 24, 1996, the United States District Court for the District of Alaska entered a judgment in the amount of $5.058 billion in the Exxon Valdez civil trial that began in May 1994. The District Court awarded approximately $19.6 million in compensatory damages to fisher plaintiffs, $38 million in prejudgment interest on the compensatory damages and $5 billion in punitive damages to a class composed of all persons and entities who asserted claims for punitive damages from the corporation as a result of the Exxon Valdez grounding. The District Court also ordered that these awards shall bear interest from and after entry of the judgment. The District Court stayed execution on the judgment pending appeal based on a $6.75 billion letter of credit posted by the corporation. Exxon has appealed the judgment. Exxon has also appealed the District Court's denial of its renewed motion for a new trial. The corporation continues to believe that the punitive damages in this case are unwarranted and that the judgment should be set aside or substantially reduced by the appellate courts. The ultimate cost to the corporation from the lawsuits arising from the Valdez grounding is not possible to predict and may not be resolved for a number of years. The U.S. Tax Court has decided the issue with respect to the pricing of crude oil purchased from Saudi Arabia for the years 1979-1981 in favor of the corporation. This decision is subject to appeal. Certain other issues for the years 1979-1988 remain pending before the Tax Court. Ultimate resolution of these issues and several other tax and legal issues, notably final resolution of the gas lifting imbalance in the Common Area (along the German/Dutch border), is not expected to F8 have a material adverse effect upon the corporation's operations, financial condition or liquidity. There are no events or uncertainties known to management beyond those already included in reported financial information that would indicate a material change in future operating results or future financial condition. CAPITAL AND EXPLORATION EXPENDITURES Capital and exploration expenditures in 1998 were $10 billion, up from $8.8 billion in 1997, reflecting the corporation's active investment program. Exploration and production spending was up 13 percent to $6.0 billion in 1998, from $5.3 billion in 1997, primarily reflecting increased spending for development projects in the Gulf of Mexico and North Sea. Capital investments in refining and marketing totaled $2.0 billion in 1998, the same level as in 1997. Chemicals capital expenditures were $1.7 billion in 1998, up from $1.0 billion in 1997, with the increase due to higher plant capacity investments in the Asia-Pacific area. Capital and exploration expenditures in the U.S. totaled $2.8 billion in 1998, an increase of 10 percent from 1997, primarily in exploration and production. Spending outside the U.S. of $7.2 billion in 1998 compared to $6.2 billion in 1997, reflecting higher expenditures in both exploration and production and chemicals. Firm commitments related to capital projects totaled approximately $6.0 billion at the end of 1998, compared with $5.6 billion at year-end 1997. The largest single commitment was $2.0 billion associated with the development of natural gas resources in Malaysia. The corporation expects to fund the majority of these commitments through internally generated funds. YEAR 2000 ISSUE The Year 2000 Issue is the result of computer programs being written using two digits rather than four to define a specific year. Absent corrective actions, a computer program that has date-sensitive software may recognize a date using "00" as the year 1900 rather than the year 2000. This could result in system failures or miscalculations causing disruptions to various activities and operations. The corporation initiated assessments in prior years to identify the work efforts required to assure that systems supporting the business successfully operate beyond the turn of the century. The scope of this work effort encompasses business information systems, infrastructure, and technical and field systems, including systems utilizing embedded technology, such as microcontrollers. The program places particular emphasis on mission critical systems, defined as those which could have a significant safety, environmental or financial impact, should Year 2000 issues arise. Plans for achieving Year 2000 compliance were finalized during 1997, and implementation work was underway at year-end 1997. The initial phases of this work, an inventory and assessment of potential problem areas, have been essentially completed. Modification and testing phases continue, with approximately 90 percent of required system modifications to mission critical systems completed by year-end 1998. Some work is continuing into 1999, including final testing of some systems and scheduled implementation of new systems with Year 2000 impacts. Attention has also been focused on compliance attainment efforts of vendors and others, including key system interfaces with customers and suppliers. Most key suppliers and business partners have been contacted for clarification of their Year 2000 plans and approximately three-fourths have confirmed that compliance plans are in place. Follow-up discussions are being held with key suppliers when necessary to gain satisfaction on their state of readiness. These reviews will continue through 1999. Testing of critical third party products and services is underway, including such areas as process control systems, credit card processing, banking transactions and telecommunications. Notwithstanding the substantive work efforts described above, the corporation could potentially experience disruptions to some mission critical operations or deliveries to customers as a result of Year 2000 issues, particularly in the first few weeks of the year 2000. Such disruptions could include impacts from potentially non-compliant systems utilized by suppliers, customers, government entities or others. Given the diverse nature of Exxon's operations, the varying state of readiness of different countries and suppliers, and the interdependence of Year 2000 impacts, the potential financial impact or liability associated with such disruptions cannot be reasonably estimated. Exxon operating sites around the world, including those in developing countries, are working with key suppliers in their respective countries to address Year 2000 issues. In addition, Year 2000 Business Contingency Guidelines are being used by all operating organizations and affiliates, and include specific reference to areas such as transportation, telecommunications and utility services. Existing site contingency plans are being updated in order to attempt to mitigate the extent of potential disruption to business operations. This work is targeted to be essentially complete by mid-1999. Through December 31, 1998, about $170 million of costs had been incurred in the corporation's efforts to achieve Year 2000 compliant systems. The total cost to the corporation of achieving Year 2000 compliant systems is currently estimated to be $225 to $250 million, primarily over the 1997-1999 timeframe, and is not expected to be a material incremental cost impacting Exxon's operations, financial condition or liquidity. F9 REPORT OF INDEPENDENT ACCOUNTANTS PricewaterhouseCoopers LLP Dallas, Texas February 24, 1999 To the Shareholders of Exxon Corporation In our opinion, the consolidated financial statements appearing on pages F11 through F25 present fairly, in all material respects, the financial position of Exxon Corporation and its subsidiary companies at December 31, 1998 and 1997, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 1998, in conformity with generally accepted accounting principles. These financial statements are the responsibility of the corporation's management; our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits of these statements in accordance with generally accepted auditing standards which require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for the opinion expressed above. As discussed in note 2 to the consolidated financial statements, the corporation changed its method of accounting for the cost of start-up activities in 1998. /s/ PricewaterhouseCoopers LLP F10

CONSOLIDATED STATEMENT OF INCOME 1998 1997 1996 - - ------------------------------------------------------------------------------------------------------------------------------------ (millions of dollars) Revenue Sales and other operating revenue, including excise taxes $ 115,417 $ 135,142 $ 131,543 Earnings from equity interests and other revenue 2,355 2,100 2,706 -------------------------------------------- Total revenue $ 117,772 $ 137,242 $ 134,249 -------------------------------------------- Costs and other deductions Crude oil and product purchases $ 45,020 $ 57,971 $ 56,406 Operating expenses 11,540 13,045 13,255 Selling, general and administrative expenses 8,372 8,406 7,961 Depreciation and depletion 5,340 5,474 5,329 Exploration expenses, including dry holes 863 753 763 Interest expense 100 415 464 Excise taxes 14,720 14,863 14,815 Other taxes and duties 22,576 23,111 22,956 Income applicable to minority and preferred interests 185 406 384 -------------------------------------------- Total costs and other deductions $ 108,716 $ 124,444 $ 122,333 -------------------------------------------- Income before income taxes $ 9,056 $ 12,798 $ 11,916 Income taxes 2,616 4,338 4,406 -------------------------------------------- Income before cumulative effect of accounting change $ 6,440 $ 8,460 $ 7,510 Cumulative effect of accounting change (70) -- -- -------------------------------------------- Net income $ 6,370 $ 8,460 $ 7,510 -------------------------------------------- Net income per common share (dollars) Before cumulative effect of accounting change $ 2.64 $ 3.41 $ 3.01 Cumulative effect of accounting change (0.03) -- -- -------------------------------------------- Net income $ 2.61 $ 3.41 $ 3.01 -------------------------------------------- Net income per common share - assuming dilution (dollars) Before cumulative effect of accounting change $ 2.61 $ 3.37 $ 2.99 Cumulative effect of accounting change (0.03) -- -- -------------------------------------------- Net income $ 2.58 $ 3.37 $ 2.99 --------------------------------------------

The information on pages F15 through F25 is an integral part of these statements. F11 CONSOLIDATED BALANCE SHEET

Dec. 31 Dec. 31 1998 1997 - - ------------------------------------------------------------------------------------------------------------------------------------ (millions of dollars) Assets Current assets Cash and cash equivalents $ 1,441 $ 4,047 Other marketable securities 20 15 Notes and accounts receivable, less estimated doubtful amounts 9,512 10,702 Inventories Crude oil, products and merchandise 4,896 4,725 Materials and supplies 709 762 Prepaid taxes and expenses 1,015 941 --------------------- Total current assets $ 17,593 $ 21,192 Investments and advances 6,434 5,205 Property, plant and equipment, at cost, less accumulated depreciation and depletion 65,199 66,414 Other assets, including intangibles, net 3,404 3,253 --------------------- Total assets $ 92,630 $ 96,064 ===================== Liabilities Current liabilities Notes and loans payable $ 4,248 $ 2,902 Accounts payable and accrued liabilities 13,825 14,683 Income taxes payable 1,339 2,069 --------------------- Total current liabilities $ 19,412 $ 19,654 Long-term debt 4,530 7,050 Annuity reserves and accrued liabilities 9,514 9,302 Deferred income tax liabilities 13,142 13,452 Deferred credits 475 575 Equity of minority and preferred shareholders in affiliated companies 1,807 2,371 --------------------- Total liabilities $ 48,880 $ 52,404 ===================== Shareholders' Equity Preferred stock without par value (authorized 200 million shares) $ 105 $ 190 Guaranteed LESOP obligation (125) (225) Common stock without par value (3,000 million shares authorized, 2,984 million shares issued) 2,323 2,323 Earnings reinvested 54,575 52,214 Accumulated other nonowner changes in equity Cumulative foreign exchange translation adjustment (641) (1,119) Minimum pension liability adjustment (282) -- Common stock held in treasury (556 million shares in 1998 and 527 million shares in 1997) (12,205) (9,723) --------------------- Total shareholders' equity $ 43,750 $ 43,660 --------------------- Total liabilities and shareholders' equity $ 92,630 $ 96,064 =====================

The information on pages F15 through F25 is an integral part of these statements. F12 CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY

1998 1997 1996 ------------------------------------------------------------------------------- Nonowner Nonowner Nonowner Shareholders' Changes in Shareholders' Changes in Shareholders' Changes in Equity Equity Equity Equity Equity Equity ------------------------------------------------------------------------------- (millions of dollars) Preferred stock outstanding at end of year $ 105 $ 190 $ 303 Guaranteed LESOP obligation (125) (225) (345) Common stock issued at end of year (see note 11) 2,323 2,323 2,822 Earnings reinvested At beginning of year $ 52,214 $ 57,156 $ 53,539 Net income for year 6,370 $ 6,370 8,460 $ 8,460 7,510 $ 7,510 Dividends - common and preferred shares (4,009) (4,032) (3,893) Cancellation of common stock held in treasury -- (9,370) -- -------- -------- -------- At end of year $ 54,575 $ 52,214 $ 57,156 -------- -------- -------- Accumulated other nonowner changes in equity At beginning of year $ (1,119) $ 1,126 $ 1,339 Foreign exchange translation adjustment 478 478 (2,245) (2,245) (213) (213) Minimum pension liability adjustment (282) (282) -- -- -- -- -------- -------- -------- At end of year $ (923) $ (1,119) $ 1,126 -------- -------- -------- -------- -------- -------- Total $ 6,566 $ 6,215 $ 7,297 ======== ======== ======== Common stock held in treasury At beginning of year $ (9,723) $(17,520) $(17,217) Acquisitions, at cost (3,055) (2,586) (801) Dispositions 573 514 498 Cancellation, returned to unissued -- 9,869 -- -------- -------- -------- At end of year $(12,205) $ (9,723) $(17,520) -------- -------- -------- Shareholders' equity at end of year $ 43,750 $ 43,660 $ 43,542 ======== ======== ========

Share Activity ---------------------------------------------------------------- 1998 1997 1996 ---------------------------------------------------------------- (millions of shares) Preferred stock outstanding at end of year 2 3 5 Common stock Issued at end of year (see note 11) 2,984 2,984 3,626 Held in treasury At beginning of year (527) (1,142) (1,142) Acquisitions (45) (43) (18) Dispositions 16 16 18 Cancellation, returned to unissued -- 642 -- ----- ------ ------ At end of year (556) (527) (1,142) ----- ------ ------ Common shares outstanding at end of year 2,428 2,457 2,484 ===== ====== ======

The information on pages F15 through F25 is an integral part of these statements. F13 CONSOLIDATED STATEMENT OF CASH FLOWS

1998 1997 1996 - - ------------------------------------------------------------------------------------------------------------------------------- (millions of dollars) Cash flows from operating activities Net income Accruing to Exxon shareholders $ 6,370 $ 8,460 $ 7,510 Accruing to minority and preferred interests 185 406 384 Adjustments for non-cash transactions Depreciation and depletion 5,340 5,474 5,329 Deferred income tax charges 408 346 835 Annuity and accrued liability provisions (296) 385 514 Dividends received greater than/(less than) equity in current earnings of equity companies 103 141 11 Changes in operational working capital, excluding cash and debt Reduction/(increase) - Notes and accounts receivable 1,321 120 (1,702) - Inventories 6 (253) 246 - Prepaid taxes and expenses (89) (5) (81) Increase/(reduction) - Accounts and other payables (2,060) (833) 495 All other items - net (232) 435 (379) ------------------------------------------ Net cash provided by operating activities $ 11,056 $ 14,676 $ 13,162 ------------------------------------------ Cash flows from investing activities Additions to property, plant and equipment $ (8,359) $ (7,393) $ (7,209) Sales of subsidiaries and property, plant and equipment 556 1,110 719 Additional investments and advances (641) (820) (810) Sales of investments and collection of advances 456 310 522 Additions to other marketable securities (61) (37) (159) Sales of other marketable securities 57 39 422 ------------------------------------------ Net cash used in investing activities $ (7,992) $ (6,791) $ (6,515) ------------------------------------------ Net cash generation before financing activities $ 3,064 $ 7,885 $ 6,647 ------------------------------------------ Cash flows from financing activities Additions to long-term debt $ 64 $ 589 $ 659 Reductions in long-term debt (132) (249) (806) Additions to short-term debt 270 531 261 Reductions in short-term debt (1,136) (991) (607) Additions/(reductions) in debt with less than 90 day maturity 2,110 128 239 Cash dividends to Exxon shareholders (4,012) (4,038) (3,902) Cash dividends to minority interests (115) (313) (291) Changes in minority interests and sales/(purchases) of affiliate stock (95) (123) (338) Common stock acquired (3,055) (2,586) (801) Common stock sold 403 340 347 ------------------------------------------ Net cash used in financing activities $ (5,698) $ (6,712) $ (5,239) ------------------------------------------ Effects of exchange rate changes on cash $ 28 $ (77) $ 35 ------------------------------------------ Increase/(decrease) in cash and cash equivalents $ (2,606) $ 1,096 $ 1,443 Cash and cash equivalents at beginning of year 4,047 2,951 1,508 ------------------------------------------ Cash and cash equivalents at end of year $ 1,441 $ 4,047 $ 2,951 ==========================================

The information on pages F15 through F25 is an integral part of these statements. F14 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS The corporation's principal business is energy, involving the worldwide exploration, production, transportation and sale of crude oil and natural gas and the manufacture, transportation and sale of petroleum products. The corporation is also a major worldwide manufacturer and marketer of petrochemicals and participates in coal and minerals mining and electric power generation. The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingent assets and liabilities. Actual results could differ from these estimates. The accompanying consolidated financial statements and the supporting and supplemental material are the responsibility of the management of Exxon Corporation. 1. Summary of Accounting Policies Principles of Consolidation. The consolidated financial statements include the accounts of those significant subsidiaries owned directly or indirectly more than 50 percent by the corporation and for which minority shareholders do not possess the right to participate in significant management decisions. Amounts representing the corporation's percentage interest in the underlying net assets of other significant subsidiaries and less than majority owned companies in which a significant equity ownership interest is held, are included in "Investments and advances"; the corporation's share of the net income of these companies is included in the consolidated statement of income caption "Earnings from equity interests and other revenue." Investments in all other companies, none of which is significant, are included in "Investments and advances" at cost or less. Dividends from these companies are included in income as received. Revenue Recognition. Revenues associated with sales of crude oil, natural gas, petroleum and chemical products and all other items are recorded when title passes to the customer. Revenues from the production of natural gas properties in which Exxon has an interest with other producers are recognized on the basis of the company's net working interest. Differences between actual production and net working interest volumes are not significant. Financial Instruments. Interest rate swap agreements are used to modify the interest rates on certain debt obligations. The interest differentials to be paid or received under such swaps are recognized over the life of the agreements as adjustments to interest expense. Currency exchange contracts are used to reduce the risk of adverse foreign currency movements related to certain foreign currency debt obligations. The gains or losses arising from currency exchange contracts offset foreign exchange gains or losses on the underlying assets or liabilities and are recognized as offsetting adjustments to the carrying amounts. Commodity swap and futures contracts are used to mitigate the risk of unfavorable price movements on certain crude and petroleum product purchases and sales. Gains or losses on these contracts are recognized as adjustments to purchase costs or to sales revenue. Related amounts payable to or receivable from counterparties are included in current assets and liabilities. Investments in marketable debt securities are expected to be held to maturity and are stated at amortized cost. The fair value of financial instruments is determined by reference to various market data and other valuation techniques as appropriate. Inventories. Crude oil, products and merchandise inventories are carried at the lower of current market value or cost (generally determined under the last-in, first-out method-LIFO). Costs include applicable purchase costs and operating expenses but not general and administrative expenses or research and development costs. Inventories of materials and supplies are valued at cost or less. Property, Plant and Equipment. Depreciation, depletion and amortization, based on cost less estimated salvage value of the asset, are primarily determined under either the unit-of-production method or the straight-line method. Unit-of-production rates are based on oil, gas and other mineral reserves estimated to be recoverable from existing facilities. The straight-line method of depreciation is based on estimated asset service life taking obsolescence into consideration. Maintenance and repairs are expensed as incurred. Major renewals and improvements are capitalized and the assets replaced are retired. The corporation's exploration and production activities are accounted for under the "successful efforts" method. Under this method, costs of productive wells and development dry holes, both tangible and intangible, as well as productive acreage are capitalized and amortized on the unit-of-production method. Costs of that portion of undeveloped acreage likely to be unproductive, based largely on historical experience, are amortized over the period of exploration. Other exploratory expenditures, including geophysical costs, other dry hole costs and annual lease rentals, are expensed as incurred. Exploratory wells that find oil and gas in an area requiring a major capital expenditure before production could begin are evaluated annually to assure that commercial quantities of reserves have been found or that additional exploration work is underway or planned. Exploratory well costs not meeting either of these tests are charged to expense. Oil, gas and other properties held and used by the corporation are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amounts may not be recoverable. The corporation estimates the future undiscounted cash flows of the affected properties to judge the recoverability of carrying amounts. In general, analysis are based on proved reserves, except in circumstances where it is probable that additional resources will be developed and contribute to cash flows in the future. Environmental Conservation and Site Restoration Costs. Liabilities for environmental conservation are recorded when it is probable that obligations have been incurred and the amounts can be reasonably estimated. These liabilities are not reduced by possible recoveries from third parties, and projected cash expenditures are not discounted. Site restoration costs that may be incurred by the corporation at the end of the operating life of certain of its facilities and properties are reserved ratably over the asset's productive life. F15 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Foreign Currency Translation. The "functional currency" for translating the accounts of the majority of refining, marketing and chemical operations outside the U.S. is the local currency. Local currency is also used for exploration and production operations that are relatively self-contained and integrated within a particular country, such as in Australia, Canada, the United Kingdom, Norway and Continental Europe. The U.S. dollar is used for operations in highly inflationary economies and for some exploration and production operations, primarily in Malaysia and the Middle East. Recently Issued Statements Of Financial Accounting Standards. In June 1998, the Financial Accounting Standards Board released Statement No. 133, "Accounting for Derivative Instruments and Hedging Activities Information." This statement, which must be adopted beginning no later than 2000, establishes accounting and reporting standards for derivative instruments. The statement requires that an entity recognize all derivatives as either assets or liabilities in the financial statements and measure those instruments at fair value, and it defines the accounting for changes in the fair value of the derivatives depending on the intended use of the derivative. No decision has been made as to whether the corporation will adopt this standard before 2000. Adoption of this statement is not expected to have a material effect upon the corporation's operations or financial condition. 2. Accounting Change The American Institute of Certified Public Accountants' Statement of Position 98-5, "Reporting on the Costs of Start-up Activities" was implemented in the fourth quarter of 1998, effective as of January 1, 1998. This statement requires that costs of start-up activities and organizational costs be expensed as incurred. The cumulative effect of this accounting change on years prior to 1998 was a charge of $70 million (net of $70 million income tax effect), or $0.03 per common share, that was reflected in the first quarter of 1998. This new accounting requirement did not have a significant effect on 1998 income before the cumulative effect of the accounting change. 3. Exxon and Mobil Merger Agreement On December 1, 1998, Exxon Corporation and Mobil Corporation signed an agreement to merge the two companies subject to shareholder approval, regulatory reviews and other conditions. Under the terms of the agreement, each common share of Mobil will be converted into 1.32015 common shares of Exxon. As a result of the merger, Exxon shareholders will own about 70 percent of the combined company and Mobil shareholders will own about 30 percent. Upon completion of the merger, the company's name will be Exxon Mobil Corporation. It is intended that the merger will qualify as a tax-free reorganization in the U.S., and that it will be accounted for on a "pooling of interests" basis. In addition, the merger agreement provides for payment of termination fees of $1.5 billion under certain circumstances. Exxon and Mobil also have entered into an option agreement that grants Exxon the option under specified circumstances to purchase up to approximately 14.9 percent of the authorized but unissued common stock of Mobil. 4. Miscellaneous Financial Information Research and development costs totaled $549 million in 1998, $529 million in 1997 and $520 million in 1996. Net income included aggregate foreign exchange transaction gains of $71 million in 1998 and $153 million in 1997 and losses of $37 million in 1996. In 1998, 1997 and 1996, net income included gains of $7 million, $35 million and $14 million, respectively, attributable to the combined effects of LIFO inventory accumulations and draw-downs. The aggregate replacement cost of inventories was estimated to exceed their LIFO carrying values by $884 million and $2,673 million at December 31, 1998 and 1997, respectively. 5. Cash Flow Information The consolidated statement of cash flows provides information about changes in cash and cash equivalents. All short-term marketable securities, with original maturities of three months or less, that are readily convertible to known amounts of cash and are so near maturity that they present insignificant risk of changes in value because of changes in interest rates, are classified as cash equivalents. Cash payments for interest were: 1998 - $581 million, 1997 - $613 million and 1996 - $669 million. Cash payments for income taxes were: 1998 - $2,718 million, 1997 - $3,943 million and 1996 - $3,420 million. 6. Leased Facilities At December 31, 1998, the corporation and its consolidated subsidiaries held non-cancelable operating charters and leases covering drilling equipment, tankers, service stations and other properties with minimum lease commitments as indicated in the table. Net rental expenditures for 1998, 1997 and 1996 totaled $1,640 million, $1,595 million and $1,284 million, respectively, after being reduced by related rental income of $199 million, $182 million and $133 million, respectively. Minimum rental expenditures totaled $1,748 million in 1998, $1,692 million in 1997 and $1,330 million in 1996. - - -------------------------------------------------------------------------------- Minimum Related commitment rental income - - -------------------------------------------------------------------------------- (millions of dollars) 1999 $ 864 $ 82 2000 713 59 2001 564 38 2002 488 28 2003 373 23 2004 and beyond 1,448 117 F16 7. Additional Working Capital Data Dec. 31 Dec. 31 1998 1997 - - -------------------------------------------------------------------------------- Notes and accounts receivable (millions of dollars) Trade, less reserves of $95 million and $80 million $ 6,616 $ 7,989 Other, less reserves of $13 million and $21 million 2,896 2,713 ---------------------- $ 9,512 $10,702 ====================== Notes and loans payable Bank loans $ 1,069 $ 1,309 Commercial paper 2,489 707 Long-term debt due within one year 496 770 Other 194 116 ---------------------- $ 4,248 $ 2,902 ====================== Accounts payable and accrued liabilities Trade payables $ 7,369 $ 8,246 Obligations to equity companies 785 730 Accrued taxes other than income taxes 3,158 3,283 Other 2,513 2,424 ---------------------- $13,825 $14,683 ====================== On December 31, 1998, unused credit lines for short-term financing totaled approximately $6.0 billion. Of this total, $4.0 billion supported commercial paper programs under terms negotiated when drawn. The weighted average interest rate on short-term borrowings outstanding at December 31, 1998 and 1997 was 4.9 percent and 5.8 percent, respectively. 8. Equity Company Information The summarized financial information on page F18 includes amounts related to certain less than majority owned companies and majority owned subsidiaries where minority shareholders possess the right to participate in significant management decisions (see note 1). These companies are primarily engaged in natural gas production and distribution in the Netherlands and Germany, refining and marketing operations in Japan, power generation in Hong Kong and China and several chemical operations. During the fourth quarter of 1998, Exxon de-consolidated the majority owned power companies in Hong Kong and China. These financial statements reflect the de-consolidation of these companies retroactive to January 1, 1998. These affiliates are now accounted for as equity companies, in compliance with the Financial Accounting Standards Board Emerging Issues Task Force ruling on Issue No. 96-16, which requires equity company reporting for a majority owned affiliate when minority shareholders possess the right to participate in significant management decisions. Exxon's 1998 net income was not affected by the de-consolidation. Below is a summary of the effect on Exxon's January 1, 1998 consolidated balance sheet related to the de-consolidation of the power generation companies in Hong Kong and China: Increase/(Decrease) - - -------------------------------------------------------------------------------- (millions of dollars) Net property, plant and equipment $(4,156) Other assets (174) Investments and advances 757 -------- Total assets $(3,573) Short and long-term debt $(2,475) Other liabilities (586) Minority interest (512) -------- Total liabilities $(3,573) During the third quarter of 1997, Exxon increased ownership in General Sekiyu K.K. (GSK) from 49.0 percent to 50.1 percent. These financial statements reflect the consolidation of GSK retroactive to January 1, 1997. GSK was previously accounted for as an equity company. GSK's balance sheet as of January 1, 1997, had total assets of $3.9 billion and total liabilities of $3.2 billion, including $0.3 billion of short-term and long-term debt. F17 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1998 1997 1996 ---------------------------------------------------------------- Exxon Exxon Exxon Equity Company Financial Summary Total Share Total Share Total Share - - ---------------------------------------------------------------------------------------------------------------------------------- (millions of dollars) Total revenues Percent of revenues from companies included in the Exxon consolidation was 18% in 1998, 20% in 1997 and 16% in 1996 $ 27,310 $ 8,527 $ 29,639 $ 8,740 $ 33,719 $ 10,901 ---------------------------------------------------------------- Income before income taxes $ 3,315 $ 1,654 $ 3,096 $ 1,475 $ 3,852 $ 1,831 Less: Related income taxes (834) (422) (1,103) (499) (1,229) (576) ---------------------------------------------------------------- Net income $ 2,481 $ 1,232 $ 1,993 $ 976 $ 2,623 $ 1,255 ================================================================ Current assets $ 6,917 $ 2,159 $ 6,618 $ 2,030 $ 9,231 $ 3,097 Property, plant and equipment, less accumulated depreciation 17,874 7,662 12,619 4,704 15,586 5,987 Other long-term assets 2,795 1,047 2,818 1,028 3,695 1,400 ---------------------------------------------------------------- Total assets $ 27,586 $ 10,868 $ 22,055 $ 7,762 $ 28,512 $ 10,484 ---------------------------------------------------------------- Short-term debt $ 1,710 $ 570 $ 1,256 $ 363 $ 1,661 $ 541 Other current liabilities 5,790 1,866 5,481 1,760 8,736 3,111 Long-term debt 4,138 1,801 2,163 580 2,857 918 Other long-term liabilities 4,396 1,897 3,556 1,497 4,319 1,820 Advances from shareholders 3,734 1,976 2,139 1,105 1,006 469 ---------------------------------------------------------------- Net assets $ 7,818 $ 2,758 $ 7,460 $ 2,457 $ 9,933 $ 3,625 ================================================================

9. Investments and Advances Dec. 31 Dec. 31 1998 1997 - - -------------------------------------------------------------------------------------------------------------------------- (millions of dollars) Companies carried at equity in underlying assets Investments $2,758 $2,457 Advances 1,976 1,105 -------------------------- $4,734 $3,562 Companies carried at cost or less 184 193 -------------------------- $4,918 $3,755 Long-term receivables and miscellaneous investments at cost or less 1,516 1,450 -------------------------- Total $6,434 $5,205 ==========================

10. Investment in Property, Plant and Equipment Dec. 31, 1998 Dec. 31, 1997 -------------------------------------------------------------------- Cost Net Cost Net - - ------------------------------------------------------------------------------------------------------------------------ (millions of dollars) Petroleum and natural gas Exploration and production $ 71,415 $ 32,481 $ 69,106 $ 31,715 Refining and marketing 34,869 19,386 32,663 18,269 -------------------------------------------------------------------- Total petroleum and natural gas $106,284 $ 51,867 $101,769 $ 49,984 Chemicals 12,340 7,019 11,336 6,144 Other 9,624 6,313 14,673 10,286 -------------------------------------------------------------------- Total $128,248 $ 65,199 $127,778 $ 66,414 ====================================================================

Accumulated depreciation and depletion totaled $63,049 million at the end of 1998 and $61,364 million at the end of 1997. Interest capitalized in 1998, 1997 and 1996 was $471 million, $494 million and $520 million, respectively. F18 11. Capital On March 14, 1997, authorized common stock was increased from two billion shares without par value to three billion shares without par value and the issued shares were split on a two-for-one basis. Prior to the common share split, 321 million shares (pre-split basis) of common stock held by the corporation as treasury shares were cancelled and returned to the status of authorized but unissued shares. Accordingly, the restated number of common stock shares issued (on a post-split basis) at December 31, 1996 is not meaningful. All common stock data and per share amounts presented in this report have been adjusted for the stock split. In 1989, the corporation sold 16.3 million shares of a new issue of convertible Class A Preferred Stock to its leveraged employee stock ownership plan (LESOP) trust for $61.50 per share. The proceeds of the issuance were used by the corporation for general corporate purposes. The corporation recorded a "Guaranteed LESOP Obligation" of $1,000 million as debt and as a reduction in shareholders' equity, representing company-guaranteed borrowings by the LESOP trust to purchase the preferred stock. As the debt is repaid, the Guaranteed LESOP Obligation will be extinguished. After adjusting for the 1997 common stock split, if the common share price exceeds $30.75, one share of preferred stock is convertible into two shares of common stock. If the price is $30.75 or less, one share of preferred is convertible into common shares having a value of $61.50. Dividends are cumulative and payable in an amount per share equal to $4.680 per annum. Dividends paid per preferred share were $4.680 in 1998, 1997 and 1996. Preferred dividends of $10 million, $17 million and $27 million were paid during 1998, 1997 and 1996, respectively. After adjusting for the 1997 common stock split, dividends paid per common share were $1.640 in 1998, $1.625 in 1997 and $1.560 in 1996. The table below summarizes the earnings per share calculations.

1998 1997 1996 ------------------------------------------ Net income per common share - - --------------------------- Income before cumulative effect of accounting change (millions of dollars) $ 6,440 $ 8,460 $ 7,510 Less: Preferred stock dividends (10) (17) (27) ------------------------------------------ Income available to common shares $ 6,430 $ 8,443 $ 7,483 ========================================== Weighted average number of common shares outstanding (millions of shares) 2,440 2,473 2,484 Net income per common share Before cumulative effect of accounting change $ 2.64 $ 3.41 $ 3.01 Cumulative effect of accounting change (0.03) -- -- ------------------------------------------ Net income $ 2.61 $ 3.41 $ 3.01 ========================================== Net income per common share - assuming dilution - - ----------------------------------------------- Income before cumulative effect of accounting change (millions of dollars) $ 6,440 $ 8,460 $ 7,510 Weighted average number of common shares outstanding (millions of shares) 2,440 2,473 2,484 Plus: Issued on assumed exercise of stock options 25 26 18 Plus: Assumed conversion of preferred stock 3 6 10 ------------------------------------------ Weighted average number of common shares outstanding 2,468 2,505 2,512 ========================================== Net income per common share Before cumulative effect of accounting change $ 2.61 $ 3.37 $ 2.99 Cumulative effect of accounting change (0.03) -- -- ------------------------------------------ Net income $ 2.58 $ 3.37 $ 2.99 ========================================== - - ------------------------------------------------------------------------------------------------------------------------------

12. Leveraged Employee Stock Ownership Plan (LESOP) In 1989, the corporation's employee stock ownership plan trust borrowed $1,000 million under the terms of notes guaranteed by the corporation maturing between 1990 and 1999. The principal due on the notes increases from $75 million in 1990 to $125 million in 1999. As further described in note 11, the LESOP trust used the proceeds of the borrowing to purchase shares of convertible Class A Preferred Stock. Employees eligible to participate in the corporation's thrift plan may elect to participate in the LESOP. Corporation contributions to the plan, plus dividends, are used to make principal and interest payments on the notes. As contributions and dividends are credited, shares of preferred stock are proportionately converted into common stock, with no cash flow impact to the corporation, and allocated to participants' accounts. In 1998, 1997 and 1996, 1.4 million, 1.8 million and 2.5 million shares of preferred stock totaling $85 million, $113 million and $151 million, respectively, were converted to common stock. Preferred dividends of $10 million, $17 million and $27 million were paid during 1998, 1997 and 1996, respectively, and covered interest payments on the notes. The 1998, 1997 and 1996 principal payments were made from employer contributions, dividends reinvested within the LESOP trust and proceeds from the sale of common stock received upon conversion of preferred shares. Accounting for the plan follows the principles which were in effect in 1989 when the plan was established. The amount of plan related compensation expense recorded by the corporation during the periods was immaterial. The LESOP trust held 1.7 million and 3.1 million shares of preferred stock and 39.2 million and 40.0 million shares of common stock at the end of 1998 and 1997, respectively. F19 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 13. Interest Rate Swap, Currency Exchange and Commodity Contracts The corporation limits its use of financial derivative instruments to simple risk management activities. The corporation does not hold or issue financial derivative instruments for trading purposes nor does it use financial derivatives with leveraged features. Derivative instruments are matched to existing assets, liabilities or transactions with the objective of mitigating the impact of adverse movements in interest rates, currency exchange rates or commodity prices. These instruments normally equal the amount of the underlying assets, liabilities or transactions and are held to maturity. Instruments are either traded over authorized exchanges or with counterparties of high credit standing. As a result of the above factors, the corporation's exposure to market and credit risks from financial derivative instruments is considered to be negligible. Interest rate swap agreements are used to adjust the ratio of fixed and floating rates in the corporation's debt portfolio. Interest rate swap agreements had an aggregate notional principal amount of $126 million and $100 million at year-end 1998 and 1997, respectively, nearly all maturing in 1999. Currency exchange contracts are used to reduce the risk of adverse foreign currency movements related to certain foreign currency debt obligations. Currency exchange contracts, maturing no later than 2005, totaled $783 million at year-end 1998 and $1,140 million at year-end 1997. These amounts included contracts in which affiliates held positions which were effectively offsetting totaling $548 million in 1998 and $544 million in 1997. Excluding these, the remaining currency exchange contracts totaled $235 million and $596 million at year-end 1998 and 1997, respectively. The corporation makes very limited use of commodity swap and futures contracts of short duration to mitigate the risk of unfavorable price movements on certain crude, natural gas and petroleum product purchases and sales. The aggregate notional amount for these contracts at year-end 1998 and 1997 was not material. 14. Fair Value of Financial Instruments The fair value of financial instruments is determined by reference to various market data and other valuation techniques as appropriate. Long-term debt is the only category of financial instruments whose fair value differs materially from the recorded book value. The estimated fair value of total long-term debt, including capitalized lease obligations, at December 31, 1998 and 1997 was $5.4 billion and $7.9 billion, respectively, as compared to recorded book values of $4.5 billion and $7.1 billion. 15. Long-Term Debt At December 31, 1998, long-term debt consisted of $4,278 million due in U.S. dollars and $252 million representing the U.S. dollar equivalent at year-end exchange rates of amounts payable in foreign currencies. These amounts exclude that portion of long-term debt, totaling $496 million, which matures within one year and is included in current liabilities. The amounts of long-term debt maturing, together with sinking fund payments required, in each of the four years after December 31, 1999, in millions of dollars, are: 2000 - $207, 2001 - - - $497, 2002 - $75 and 2003 - $35. Certain of the borrowings described may from time to time be assigned to other Exxon affiliates. At December 31, 1998, the corporation's unused long-term credit lines were not material. The total outstanding balance of defeased debt at year-end 1998 was $718 million. Summarized long-term borrowings at year-end 1998 and 1997 were as follows: 1998 1997 - - -------------------------------------------------------------------------------- (millions of dollars) Exxon Corporation 7.45% Guaranteed notes due 2001(1) $ 246 $ 246 Guaranteed zero coupon notes due 2004(1) - Face value ($1,146) net of unamortized discount 601 538 Exxon Capital Corporation 6.0% Guaranteed notes due 2005 246 246 6.125% Guaranteed notes due 2008 250 250 SeaRiver Maritime Financial Holdings, Inc. Guaranteed debt securities due 2000-2011(2) 129 143 Guaranteed deferred interest debentures due 2012 - Face value ($771) net of unamortized discount 653 586 Exxon Energy Limited(3) 8.3% Hong Kong dollar loan due 2000-2008 -- 144 7.16% Export credit loans due 2000-2012 -- 856 Floating rate term loan due 2000-2006 -- 591 6.87% notes due 2003 -- 173 Other obligations -- 362 Imperial Oil Limited 9.875% Canadian dollar notes due 1999 -- 171 8.3% notes due 2001 200 200 Variable rate notes due 2004(4) 600 600 8.75% notes due 2019 220 219 Industrial revenue bonds due 2012-2033(5) 960 951 Guaranteed LESOP notes due 1999 -- 125 Other U.S. dollar obligations 173 352 Other foreign currency obligations 195 225 Capitalized lease obligations(6) 57 72 -------------------- Total long-term debt $4,530 $7,050 ==================== 1. Notes transferred from Exxon Capital Corporation to Exxon Corporation in 1998. 2. Average effective interest rate of 5.5% in 1998 and 5.5% in 1997. 3. Reflects de-consolidation of majority owned power companies in Hong Kong and China (see note 8). 4. Average effective interest rate of 5.5% in 1998 and 5.5% in 1997. 5. Average effective interest rate of 4.1% in 1998 and 4.5% in 1997. 6. Average imputed interest rate of 7.1% in 1998 and 7.4% in 1997. F20 16. Incentive Program The 1993 Incentive Program provides for grants of stock options, stock appreciation rights (SARs), restricted stock and other forms of award. Awards may be granted over the 10-year period ending April 28, 2003 to eligible employees of the corporation and those affiliates at least 50 percent owned. The number of shares of stock which may be awarded each year under the 1993 Incentive Program may not exceed seven tenths of one percent (0.7%) of the total number of shares of common stock of the corporation outstanding (excluding shares held by the corporation) on December 31 of the preceding year. If the total number of shares effectively granted in any year is less than the maximum number of shares allowable, the balance may be carried over thereafter. Outstanding awards are subject to certain forfeiture provisions contained in the program or award instrument. As under earlier programs, options and SARs may be granted at prices not less than 100 percent of market value on the date of grant and have a maximum life of 10 years. Most of the options and SARs thus far granted first become exercisable after one year of continuous employment following the date of grant. Shares available for granting were 27,337 thousand at the beginning of 1998 and 34,900 thousand at the end of 1998. At December 31, 1998 and 1997, respectively, 777 thousand and 613 thousand shares of restricted common stock were outstanding. Statement of Financial Accounting Standards No. 123, "Accounting for Stock-Based Compensation," was implemented in January 1996. As permitted by the Standard, Exxon retained its prior method of accounting for stock compensation. If the provisions of Statement No. 123 had been adopted, net income and earnings per share (on both a basic and diluted basis) would have been reduced by $101 million, or $0.04 per share in 1998; $76 million, or $0.03 per share in 1997 and $53 million, or $0.02 per share in 1996. The average fair value of each option granted during 1998, 1997 and 1996 was $12.80, $11.36 and $7.43, respectively. The fair value was estimated at the grant date using an option-pricing model with the following weighted average assumptions for 1998, 1997 and 1996, respectively: risk-free interest rates of 4.8 percent, 5.8 percent and 6.1 percent; expected life of 6 years for all years; volatility of 13 percent, 12 percent and 12 percent and a dividend yield of 2.3 percent, 2.7 percent and 3.4 percent. Changes that occurred in options outstanding in 1998, 1997 and 1996 are summarized below (shares in thousands):

1998 1997 1996 --------------------------------------------------------------------------------------- Avg. Exercise Avg. Exercise Avg. Exercise Shares Price Shares Price Shares Price --------------------------------------------------------------------------------------- Outstanding at beginning of year 72,440 $38.48 73,897 $33.20 75,510 $29.70 Granted 10,785 72.38 11,019 61.41 11,968 47.06 Exercised (13,024) 29.74 (12,153) 26.95 (13,295) 25.69 Expired/Canceled (302) 58.61 (323) 46.61 (286) 37.63 ------- ------- ------- Outstanding at end of year 69,899 45.25 72,440 38.48 73,897 33.20 Exercisable at end of year 58,425 40.12 61,179 34.32 61,939 30.53

The following table summarizes information about stock options outstanding at December 31, 1998 (shares in thousands):

Options Outstanding Options Exercisable - - ------------------------------------------------------------------- ------------------------- Exercise Price Avg. Remaining Avg. Exercise Avg. Exercise Range Shares Contractual Life Price Shares Price - - ------------------------------------------------------------------- ------------------------- $23.63-31.78 27,559 4.3 years $29.71 27,559 $29.71 39.47-47.06 20,834 7.4 43.47 20,597 43.42 61.41-72.38 21,506 9.4 66.90 10,269 61.41 ------ ------ Total 69,899 6.8 45.25 58,425 40.12

17. Annuity Benefits and Other Postretirement Benefits Annuity Benefits - - ---------------------------------------------------------------------------------------------------- Other Postretirement U.S. Non-U.S. Benefits -------------------------- --------------------------- -------------------------- 1998 1997 1996 1998 1997 1996 1998 1997 1996 -------------------------------------------------------------------------------------- Components of net benefit cost (millions of dollars) Service cost $ 148 $ 137 $ 147 $ 182 $ 176 $ 162 $ 26 $ 28 $ 28 Interest cost 361 364 361 482 515 523 135 136 130 Expected return on plan assets (358) (351) (351) (467) (445) (412) (41) (35) (36) Amortization of actuarial loss/(gain) and prior service cost (11) (23) 13 83 82 40 13 10 15 Net pension enhancement and curtailment/settlement expense 1 (6) 6 (1) (11) 17 -- -- -- -------------------------------------------------------------------------------------- Net benefit cost $ 141 $ 121 $ 176 $ 279 $ 317 $ 330 $ 133 $ 139 $ 137 ======================================================================================

Costs for defined contribution plans were $54 million, $58 million and $100 million in 1998, 1997 and 1996, respectively. F21 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Annuity Benefits ------------------------------------------ Other Postretirement U.S. Non-U.S. Benefits ------------------- ------------------- -------------------- 1998 1997 1998 1997 1998 1997 ----------------------------------------------------------------- Change in benefit obligation (millions of dollars) Benefit obligation at January 1 $ 5,396 $ 5,077 $ 7,853 $ 7,470 $ 2,052 $ 1,879 Service cost 148 137 182 176 26 28 Interest cost 361 364 482 515 135 136 Actuarial loss/(gain) 204 291 871 466 2 144 Benefits paid (528) (493) (502) (557) (152) (135) Foreign exchange rate changes -- -- 131 (642) (18) (11) Other 30 20 107 425 12 11 ----------------------------------------------------------------- Benefit obligation at December 31 $ 5,611 $ 5,396 $ 9,124 $ 7,853 $ 2,057 $ 2,052 ================================================================= Change in plan assets Fair value at January 1 $ 4,016 $ 3,815 $ 5,367 $ 5,025 $ 447 $ 422 Actual return on plan assets 651 646 682 769 117 88 Foreign exchange rate changes -- -- (4) (363) -- -- Payments directly to participants 75 62 141 184 110 97 Company contribution -- -- 193 152 34 32 Benefits paid (528) (493) (502) (557) (152) (135) Other -- (14) 7 157 (44) (57) ----------------------------------------------------------------- Fair value at December 31 $ 4,214 $ 4,016 $ 5,884 $ 5,367 $ 512 $ 447 ================================================================= Assets in excess of/(less than) benefit obligation Balance at December 31 $(1,397) $(1,380) $(3,240) $(2,486) $(1,545) $(1,605) Unrecognized net transition liability/(asset) (87) (136) 22 26 -- -- Unrecognized net actuarial loss/(gain) (19) 66 1,076 361 135 219 Unrecognized prior service cost 71 84 325 145 18 20 Intangible asset (14) -- (49) -- -- -- Equity of minority shareholders -- -- (55) -- -- -- Minimum pension liability adjustment (68) -- (495) -- -- -- ----------------------------------------------------------------- Prepaid/(accrued) benefit cost $(1,514) $(1,366) $(2,416) $(1,954) $(1,392) $(1,366) ================================================================= Annuity assets and reserves in excess of accumulated benefit obligation $ 889 $ 689 $ 347 $ 495 Assumptions as of December 31 (percent) ----------------------------------------------------------------- Discount rate 6.75 7.00 2.7-8.3 4.0-8.5 6.75 7.00 Long-term rate of compensation increase 3.50 3.50 2.3-6.5 2.5-8.5 3.50 3.50 Long-term rate of return on funded assets 9.50 9.75 5.0-10.0 5.0-10.0 9.50 9.75 - - -----------------------------------------------------------------------------------------------------------------------------------

The data shown above is reported as required by current accounting standards which specify use of a discount rate at which postretirement liabilities could be effectively settled. The discount rate stipulated for use in calculating year-end postretirement liabilities is based on the year-end rate of interest on high quality bonds. For determining the funding requirements of U.S. annuity plans in accordance with applicable federal government regulations, Exxon uses the expected long-term rate of return of the annuity fund's actual portfolio as the discount rate. This rate has historically been higher than bonds as the majority of pension assets are invested in equities. In fact, the actual rate earned over the past decade has been 13 percent. On this basis, all funded U.S. plans meet the full funding requirements of the Department of Labor and the Internal Revenue Service as detailed in the table below. Certain smaller U.S. plans and a number of non-U.S. plans are not funded because of local tax conventions and regulatory practices which do not encourage funding of these plans. Book reserves have been established for these plans to provide for future benefit payments.

Status of U.S. annuity plans subject to federal government funding requirements 1998 1997 - - ------------------------------------------------------------------------------------------------------------- (millions of dollars) Funded assets at market value less total projected benefit obligation $(1,397) $(1,380) Differences between accounting and funding basis: Certain smaller plans unfunded due to lack of tax and regulatory incentives 553 512 Use of long-term rate of return on fund assets as the discount rate 1,229 1,062 Use of government required assumptions and other actuarial adjustments 118 127 ----------------------- Funded assets in excess of obligations under government regulations $ 503 $ 321

F22 18. Litigation and Other Contingencies A number of lawsuits, including class actions, were brought in various courts against Exxon Corporation and certain of its subsidiaries relating to the accidental release of crude oil from the tanker Exxon Valdez in 1989. Essentially all of these lawsuits have now been resolved or are subject to appeal. On September 24, 1996, the United States District Court for the District of Alaska entered a judgment in the amount of $5.058 billion in the Exxon Valdez civil trial that began in May 1994. The District Court awarded approximately $19.6 million in compensatory damages to fisher plaintiffs, $38 million in prejudgment interest on the compensatory damages and $5 billion in punitive damages to a class composed of all persons and entities who asserted claims for punitive damages from the corporation as a result of the Exxon Valdez grounding. The District Court also ordered that these awards shall bear interest from and after entry of the judgment. The District Court stayed execution on the judgment pending appeal based on a $6.75 billion letter of credit posted by the corporation. Exxon has appealed the judgment. Exxon has also appealed the District Court's denial of its renewed motion for a new trial. The corporation continues to believe that the punitive damages in this case are unwarranted and that the judgment should be set aside or substantially reduced by the appellate courts. On January 29, 1997, a settlement agreement was concluded resolving all remaining matters between Exxon and various insurers arising from the Valdez accident. Under terms of this settlement, Exxon received $480 million. Final income statement recognition of this settlement continues to be deferred in view of uncertainty regarding the ultimate cost to the corporation of the Valdez accident. The ultimate cost to the corporation from the lawsuits arising from the Exxon Valdez grounding is not possible to predict and may not be resolved for a number of years. In each of the years 1998, 1997 and 1996, $70 million in payments were made under the October 8, 1991 civil agreement and consent decree with the U.S. and Alaska governments. These payments were charged against the provision that was previously established to cover the costs of the settlement. German and Dutch affiliated companies are the concessionaires of a natural gas field subject to a treaty between the governments of Germany and the Netherlands under which the gas reserves in an undefined border or common area are to be shared equally. Entitlement to the reserves is determined by calculating the amount of gas which can be recovered from this area. Based on the final reserve determination, the German affiliate has received more gas than its entitlement. Arbitration proceedings, as provided in the agreements, have been underway to determine the manner of resolving the issues between the German and Dutch affiliated companies. On July 8, 1996, an interim ruling was issued establishing a provisional compensation payment for the excess gas received. Additional compensation, if any, remains subject to further arbitration proceedings or negotiation. Other substantive matters remain outstanding, including recovery of royalties paid on such excess gas and the taxes payable on the final compensation amount. The net financial impact on the corporation is not possible to predict at this time given these outstanding issues. However, the ultimate outcome is not expected to have a materially adverse effect upon the corporation's operations or financial condition. The U.S. Tax Court has decided the issue with respect to the pricing of crude oil purchased from Saudi Arabia for the years 1979-1981 in favor of the corporation. This decision is subject to appeal. Certain other issues for the years 1979-1988 remain pending before the Tax Court. The ultimate resolution of these issues is not expected to have a materially adverse effect upon the corporation's operations or financial condition. Claims for substantial amounts have been made against Exxon and certain of its consolidated subsidiaries in other pending lawsuits, the outcome of which is not expected to have a materially adverse effect upon the corporation's operations or financial condition. The corporation and certain of its consolidated subsidiaries were contingently liable at December 31, 1998, for $1,336 million, primarily relating to guarantees for notes, loans and performance under contracts. This includes $963 million representing guarantees of non-U.S. excise taxes and customs duties of other companies, entered into as a normal business practice, under reciprocal arrangements. Not included in this figure are guarantees by consolidated affiliates of $947 million, representing Exxon's share of obligations of certain equity companies. Additionally, the corporation and its affiliates have numerous long-term sales and purchase commitments in their various business activities, all of which are expected to be fulfilled with no adverse consequences material to the corporation's operations or financial condition. The operations and earnings of the corporation and its affiliates throughout the world have been, and may in the future be, affected from time to time in varying degree by political developments and laws and regulations, such as forced divestiture of assets; restrictions on production, imports and exports; price controls; tax increases and retroactive tax claims; expropriation of property; cancellation of contract rights and environmental regulations. Both the likelihood of such occurrences and their overall effect upon the corporation vary greatly from country to country and are not predictable. F23 NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 19. Disclosures about Segments and Related Information The functional segmentation of operations reflected below is consistent with Exxon's internal reporting. Earnings are before the cumulative effect of accounting changes. Transfers are at estimated market prices. The interest revenue amount relates to interest earned on cash deposits and marketable securities. Interest expense includes non-debt related interest expense of $74 million, $111 million and $93 million in 1998, 1997 and 1996, respectively. All Other includes smaller operating segments and corporate and financing activities.

Exploration Refining & Production & Marketing Chemicals ------------------ ----------------- --------------- All Corporate U.S. Non-U.S. U.S. Non-U.S. U.S. Non-U.S. Other Total --------------------------------------------------------------------------------------- (millions of dollars) As of December 31, 1998 Earnings after income tax $ 839 $ 1,869 $ 625 $ 1,833 $ 722 $ 491 $ 61 $ 6,440 Earnings of equity companies included above -- 959 26 21 7 27 192 1,232 Sales and other operating revenue 2,239 6,596 15,778 79,438 4,605 5,899 862 115,417 Intersegment revenue 2,408 2,629 1,438 1,970 1,725 760 135 -- Depreciation and depletion expense 1,077 2,049 287 1,031 296 239 361 5,340 Interest revenue -- -- -- -- -- -- 151 151 Interest expense -- -- -- -- -- -- 100 100 Income taxes 501 456 360 1,023 323 157 (204) 2,616 Additions to property, plant and equipment 1,442 2,998 663 1,272 384 1,039 561 8,359 Investments in equity companies -- 835 -- 820 365 691 47 2,758 Total assets 13,987 23,539 6,493 27,259 5,450 6,502 9,400 92,630 ======================================================================================= As of December 31, 1997 Earnings after income tax $ 1,634 $ 3,059 $ 593 $ 1,470 $ 825 $ 543 $ 336 $ 8,460 Earnings of equity companies included above 3 964 19 33 12 52 (107) 976 Sales and other operating revenue 2,650 8,222 19,995 89,777 5,396 6,799 2,303 135,142 Intersegment revenue 3,960 4,211 1,827 2,404 2,145 833 163 -- Depreciation and depletion expense 1,113 1,984 259 1,083 268 188 579 5,474 Interest revenue -- -- -- -- -- -- 324 324 Interest expense -- -- -- -- -- -- 415 415 Income taxes 972 1,620 333 786 409 330 (112) 4,338 Additions to property, plant and equipment 1,341 2,551 579 1,256 357 471 838 7,393 Investments in equity companies 3 782 2 823 217 600 30 2,457 Total assets 13,752 22,911 6,349 26,242 5,403 5,426 15,981 96,064 ======================================================================================= As of December 31, 1996 Earnings after income tax $ 1,781 $ 3,277 $ 169 $ 716 $ 701 $ 498 $ 368 $ 7,510 Earnings of equity companies included above 3 1,104 22 47 26 117 (64) 1,255 Sales and other operating revenue 2,532 8,725 20,012 86,743 4,969 6,461 2,101 131,543 Intersegment revenue 4,486 4,714 1,641 2,174 1,969 810 177 -- Depreciation and depletion expense 1,174 1,928 268 1,024 250 180 505 5,329 Interest revenue -- -- -- -- -- -- 226 226 Interest expense -- -- -- -- -- -- 464 464 Income taxes 1,055 2,116 90 474 335 257 79 4,406 Additions to property, plant and equipment 927 2,576 472 1,263 731 256 984 7,209 Investments in equity companies 4 1,040 11 1,547 207 782 34 3,625 Total assets 13,740 23,757 6,221 26,317 5,200 5,515 14,777 95,527 =======================================================================================

F24 Geographic Sales and other operating revenue 1998 1997 1996 - - ------------------------------------------------------------------------------- (millions of dollars) United States $ 22,739 $ 28,148 $ 27,656 Non-U.S 92,678 106,994 103,887 ---------------------------------------- Total $115,417 $135,142 $131,543 Significant non-U.S. revenue sources include: United Kingdom $14,375 $ 14,834 $ 13,926 Germany 12,017 13,672 15,323 Japan 10,999 12,954 8,044 Italy 10,411 10,565 10,780 Canada 8,886 11,192 11,171 Long-lived assets 1998 1997 1996 - - ------------------------------------------------------------------------------- (millions of dollars) United States $25,105 $ 24,454 $ 23,939 Non-U.S. 40,094 41,960 42,668 --------------------------------------- Total $65,199 $ 66,414 $ 66,607 Significant non-U.S. long-lived assets include: United Kingdom $ 9,382 $ 9,155 $ 9,373 Canada 5,000 5,527 6,320 20. Income, Excise and Other Taxes

1998 1997 1996 - - ----------------------------------------------------------------------------------------------------------------------------- United Non- United Non- United Non- States U.S. Total States U.S. Total States U.S. Total ------------------------------------------------------------------------------------ (millions of dollars) Income taxes Federal or non-U.S. Current $ 451 $ 1,632 $ 2,083 $ 1,199 $ 2,365 $ 3,564 $ 988 $ 2,751 $ 3,739 Deferred - net 330 72 402 163 429 592 314 164 478 U.S. tax on non-U.S. operations 16 -- 16 20 -- 20 47 -- 47 ------------------------------------------------------------------------------------ $ 797 $ 1,704 $ 2,501 $ 1,382 $ 2,794 $ 4,176 $ 1,349 $ 2,915 $ 4,264 State 115 -- 115 162 -- 162 142 -- 142 ------------------------------------------------------------------------------------ Total income taxes $ 912 $ 1,704 $ 2,616 $ 1,544 $ 2,794 $ 4,338 $ 1,491 $ 2,915 $ 4,406 Excise taxes 2,747 11,973 14,720 2,605 12,258 14,863 2,494 12,321 14,815 All other taxes and duties 638 23,280 23,918 816 23,855 24,671 853 23,689 24,542 ------------------------------------------------------------------------------------ Total $ 4,297 $36,957 $41,254 $ 4,965 $38,907 $43,872 $ 4,838 $38,925 $43,763 ------------------------------------------------------------------------------------

All other taxes and duties include taxes reported in operating and selling, general and administrative expenses. The above provisions for deferred income taxes include net credits for the effect of changes in tax laws and rates of $107 million in 1998, $147 million in 1997 and $26 million in 1996. Income taxes (charged)/credited directly to shareholders' equity were: $(15) million in 1998, $234 million in 1997 and $(87) million in 1996 for the cumulative foreign exchange translation adjustment; $281 million in 1998 for the minimum pension liability adjustment; and $88 million, $67 million and $9 million in 1998, 1997 and 1996, respectively, for other components of shareholders' equity. The reconciliation between income tax expense and a theoretical U.S. tax computed by applying a rate of 35 percent for 1998, 1997 and 1996, is as follows: 1998 1997 1996 - - -------------------------------------------------------------------------- (millions of dollars) Earnings before Federal and non-U.S. income taxes United States $ 2,506 $ 4,413 $ 3,706 Non-U.S 6,435 8,223 8,068 ----------------------------------- Total $ 8,941 $ 12,636 $ 11,774 ----------------------------------- Theoretical tax $ 3,129 $ 4,423 $ 4,121 Effect of equity method accounting (431) (342) (439) Non-U.S. taxes greater/(less) than theoretical U.S. tax (117) 258 530 U.S. tax on non-U.S. operations 16 20 47 Other U.S. (96) (183) 5 ----------------------------------- Federal and non-U.S. income tax expense $ 2,501 $ 4,176 $ 4,264 =================================== Total effective tax rate 32.1% 36.4% 39.9% The effective income tax rate includes state income taxes and the corporation's share of income taxes of equity companies. Equity company taxes totaled $422 million in 1998, $499 million in 1997 and $576 million in 1996, essentially all outside the U.S. Deferred income taxes reflect the impact of temporary differences between the amount of assets and liabilities recognized for financial reporting purposes and such amounts recognized for tax purposes. Deferred tax liabilities/(assets) are comprised of the following at December 31: Tax effects of temporary differences for: 1998 1997 - - ------------------------------------------------------------------ (millions of dollars) Depreciation $10,128 $10,324 Intangible development costs 3,022 3,036 Capitalized interest 1,432 1,309 Other liabilities 2,174 2,215 ----------------------- Total deferred tax liabilities $16,756 $16,884 ----------------------- Pension and other postretirement benefits $(1,498) $(1,187) Site restoration reserves (817) (809) Tax loss carryforwards (964) (850) Other assets (673) (1,092) ----------------------- Total deferred tax assets $(3,952) $(3,938) ----------------------- Asset valuation allowances 256 296 ----------------------- Net deferred tax liabilities $13,060 $13,242 ----------------------- The corporation had $8.4 billion of indefinitely reinvested, undistributed earnings from subsidiary companies outside the U.S. Unrecognized deferred taxes on remittance of these funds are not expected to be material. F25 SUPPLEMENTAL INFORMATION ON OIL AND GAS EXPLORATION AND PRODUCTION ACTIVITIES

Consolidated Subsidiaries ---------------------------------------------------------- Non- United Consolidated Total Results of Operations States Canada Europe Asia-Pacific Other Total Interests Worldwide - - ----------------------------------------------------------------------------------------------------------------------------------- (millions of dollars) 1998 - Revenue Sales to third parties $1,522 $ 328 $2,374 $1,131 $ 62 $ 5,417 $2,061 $ 7,478 Transfers 1,843 323 1,261 405 79 3,911 29 3,940 ------------------------------------------------------------------------------------- $3,365 $ 651 $3,635 $1,536 $ 141 $ 9,328 $2,090 $11,418 Production costs excluding taxes 946 279 1,158 280 138 2,801 233 3,034 Exploration expenses 190 24 177 118 348 857 69 926 Depreciation and depletion 1,044 282 1,275 481 94 3,176 208 3,384 Taxes other than income 244 26 81 162 -- 513 595 1,108 Related income tax 349 (24) 241 123 (159) 530 399 929 ------------------------------------------------------------------------------------- Results of producing activities $ 592 $ 64 $ 703 $ 372 $ (280) $ 1,451 $ 586 $ 2,037 Other earnings* 248 42 285 26 (3) 598 73 671 ------------------------------------------------------------------------------------- Total earnings $ 840 $ 106 $ 988 $ 398 $ (283) $ 2,049 $ 659 $ 2,708 ===================================================================================== 1997 - Revenue Sales to third parties $1,815 $ 459 $2,742 $1,694 $ 71 $ 6,781 $2,540 $ 9,321 Transfers 3,300 537 1,979 751 112 6,679 51 6,730 ------------------------------------------------------------------------------------- $5,115 $ 996 $4,721 $2,445 $ 183 $13,460 $2,591 $16,051 Production costs excluding taxes 1,044 344 995 341 111 2,835 225 3,060 Exploration expenses 130 23 197 150 247 747 87 834 Depreciation and depletion 1,084 325 1,204 423 90 3,126 211 3,337 Taxes other than income 438 24 91 371 -- 924 866 1,790 Related income tax 888 109 1,011 219 (48) 2,179 512 2,691 ------------------------------------------------------------------------------------- Results of producing activities $1,531 $ 171 $1,223 $ 941 $ (217) $ 3,649 $ 690 $ 4,339 Other earnings* 101 65 104 21 (6) 285 69 354 ------------------------------------------------------------------------------------- Total earnings $1,632 $ 236 $1,327 $ 962 $ (223) $ 3,934 $ 759 $ 4,693 ===================================================================================== 1996 - Revenue Sales to third parties $1,706 $ 443 $2,581 $1,998 $ 119 $ 6,847 $2,974 $ 9,821 Transfers 3,846 682 2,360 736 125 7,749 47 7,796 ------------------------------------------------------------------------------------- $5,552 $1,125 $4,941 $2,734 $ 244 $14,596 $3,021 $17,617 Production costs excluding taxes 1,116 376 1,050 391 70 3,003 250 3,253 Exploration expenses 116 32 224 140 255 767 73 840 Depreciation and depletion 1,139 342 1,130 426 102 3,139 195 3,334 Taxes other than income 476 24 96 477 -- 1,073 1,038 2,111 Related income tax 990 83 1,182 492 (13) 2,734 603 3,337 ------------------------------------------------------------------------------------- Results of producing activities $1,715 $ 268 $1,259 $ 808 $ (170) $ 3,880 $ 862 $ 4,742 Other earnings* 63 51 103 36 5 258 58 316 ------------------------------------------------------------------------------------- Total earnings $1,778 $ 319 $1,362 $ 844 $ (165) $ 4,138 $ 920 $ 5,058 ===================================================================================== Average sales prices and production costs per unit of production - - ----------------------------------------------------------------------------------------------------------------------------------- During 1998 Average sales prices Crude oil and NGL, per barrel $ 9.69 $ 7.43 $12.64 $13.24 $11.11 $ 10.97 $12.44 $ 11.03 Natural gas, per thousand cubic feet 2.03 1.34 2.68 1.09 -- 1.99 3.11 2.28 Average production costs, per barrel** 3.05 3.24 4.41 1.91 10.82 3.42 1.96 3.24 During 1997 Average sales prices Crude oil and NGL, per barrel $15.82 $12.29 $19.14 $21.08 $18.06 $ 17.32 $19.20 $ 17.39 Natural gas, per thousand cubic feet 2.43 1.88 3.13 1.39 -- 2.37 3.46 2.67 Average production costs, per barrel** 3.17 4.19 3.98 2.21 10.87 3.43 1.78 3.21 During 1996 Average sales prices Crude oil and NGL, per barrel $17.24 $16.38 $19.93 $21.04 $20.50 $ 18.69 $20.36 $ 18.75 Natural gas, per thousand cubic feet 2.35 1.48 2.83 2.52 -- 2.49 3.48 2.80 Average production costs, per barrel** 3.26 5.08 4.07 2.68 5.83 3.61 1.72 3.33

* Includes earnings from transportation operations, oil sands operations, technical services agreements, other non-operating activities and adjustments for minority interests. ** Production costs exclude depreciation and depletion and all taxes. Natural gas included by conversion to crude oil equivalent. F26 Oil and Gas Exploration and Production Costs The amounts shown for net capitalized costs of consolidated subsidiaries are $3,285 million less at year-end 1998 and $3,208 million less at year-end 1997 than the amounts reported as investments in property, plant and equipment for exploration and production in note 10. This is due to the exclusion from capitalized costs of certain transportation and research assets and assets relating to the oil sands operations, and to the inclusion of accumulated provisions for site restoration costs, all as required in Statement of Financial Accounting Standards No. 19. The amounts reported as costs incurred include both capitalized costs and costs charged to expense during the year. Total worldwide costs incurred in 1998 were $5,451 million, up $579 million from 1997, due primarily to higher development costs. 1997 costs were $4,872 million, up $429 million from 1996, due primarily to higher development costs.

Consolidated Subsidiaries -------------------------------------------------------------- Non- United Consolidated Total Capitalized costs States Canada Europe Asia-Pacific Other Total Interests Worldwide - - ----------------------------------------------------------------------------------------------------------------------------------- (millions of dollars) As of December 31, 1998 Property (acreage) costs - Proved $ 3,096 $ 2,232 $ 86 $ 535 $ 816 $ 6,765 $ 14 $ 6,779 - Unproved 404 76 29 141 250 900 13 913 ---------------------------------------------------------------------------------------- Total property costs $ 3,500 $ 2,308 $ 115 $ 676 $ 1,066 $ 7,665 $ 27 $ 7,692 Producing assets 23,719 2,798 19,786 7,560 826 54,689 2,622 57,311 Support facilities 369 75 495 856 65 1,860 111 1,971 Incomplete construction 1,150 117 2,469 547 519 4,802 298 5,100 ---------------------------------------------------------------------------------------- Total capitalized costs $28,738 $ 5,298 $22,865 $ 9,639 $ 2,476 $69,016 $ 3,058 $72,074 Accumulated depreciation and depletion 17,241 2,810 12,510 5,954 1,305 39,820 2,311 42,131 ---------------------------------------------------------------------------------------- Net capitalized costs $11,497 $ 2,488 $10,355 $ 3,685 $ 1,171 $29,196 $ 747 $29,943 ======================================================================================== As of December 31, 1997 Property (acreage) costs - Proved $ 3,109 $ 2,441 $ 85 $ 557 $ 828 $ 7,020 $ 16 $ 7,036 - Unproved 390 96 26 163 114 789 13 802 ---------------------------------------------------------------------------------------- Total property costs $ 3,499 $ 2,537 $ 111 $ 720 $ 942 $ 7,809 $ 29 $ 7,838 Producing assets 23,218 2,915 19,345 7,229 753 53,460 2,240 55,700 Support facilities 328 78 469 865 46 1,786 113 1,899 Incomplete construction 589 86 1,968 609 359 3,611 308 3,919 ---------------------------------------------------------------------------------------- Total capitalized costs $27,634 $ 5,616 $21,893 $ 9,423 $ 2,100 $66,666 $ 2,690 $69,356 Accumulated depreciation and depletion 16,391 2,803 12,181 5,568 1,216 38,159 2,060 40,219 ---------------------------------------------------------------------------------------- Net capitalized costs $11,243 $ 2,813 $ 9,712 $ 3,855 $ 884 $28,507 $ 630 $29,137 ======================================================================================== Costs incurred in property acquisitions, exploration and development activities - - ------------------------------------------------------------------------------------------------------------------------------ During 1998 Property acquisition costs - Proved $ 1 $ 2 $ -- $ 1 $ -- $ 4 $ -- $ 4 - Unproved 29 1 3 1 150 184 -- 184 Exploration costs 248 30 255 135 448 1,116 125 1,241 Development costs 1,250 158 1,846 412 156 3,822 200 4,022 ------------------------------------------------------------------------------------- Total $ 1,528 $ 191 $ 2,104 $ 549 $ 754 $ 5,126 $ 325 $ 5,451 ===================================================================================== During 1997 Property acquisition costs - Proved $ 2 $ -- $ -- $ 1 $ 1 $ 4 $ -- $ 4 - Unproved 80 1 -- -- 9 90 -- 90 Exploration costs 231 29 280 160 321 1,021 122 1,143 Development costs 1,112 213 1,504 512 112 3,453 182 3,635 ------------------------------------------------------------------------------------- Total $ 1,425 $ 243 $ 1,784 $ 673 $ 443 $ 4,568 $ 304 $ 4,872 ===================================================================================== During 1996 Property acquisition costs - Proved $ 2 $ 1 $ -- $ 2 $ 81 $ 86 $ -- $ 86 - Unproved 16 3 -- 7 46 72 -- 72 Exploration costs 156 50 258 153 283 900 117 1,017 Development costs 817 165 1,498 563 83 3,126 142 3,268 ------------------------------------------------------------------------------------- Total $ 991 $ 219 $ 1,756 $ 725 $ 493 $ 4,184 $ 259 $ 4,443 =====================================================================================

F27 SUPPLEMENTAL INFORMATION ON OIL AND GAS EXPLORATION AND PRODUCTION ACTIVITIES Oil and Gas Reserves The following information describes changes during the years and balances of proved oil and gas reserves at year-end 1996, 1997 and 1998. The definitions used are in accordance with applicable Securities and Exchange Commission regulations. Proved oil and gas reserves are the estimated quantities of crude oil, natural gas and natural gas liquids which geological and engineering data demonstrate with reasonable certainty to be recoverable in future years from known reservoirs under existing economic and operating conditions, i.e., prices and costs as of the date the estimate is made. Prices include consideration of changes in existing prices provided only by contractual arrangements, but not on escalations based upon future conditions. In some cases, substantial new investments in additional wells and related facilities will be required to recover these proved reserves. Proved reserves include 100 percent of each majority owned affiliate's participation in proved reserves and Exxon's ownership percentage of the proved reserves of equity companies, but exclude royalties and quantities due others. Gas reserves exclude the gaseous equivalent of liquids expected to be removed from the gas on leases, at field facilities and at gas processing plants. These liquids are included in net proved reserves of crude oil and natural gas liquids.

Consolidated Subsidiaries ---------------------------------------------------------------- Non- United Consolidated Total Crude Oil and Natural Gas Liquids States Canada Europe Asia-Pacific Other Total Interests Worldwide - - ------------------------------------------------------------------------------------------------------------------------------ (millions of barrels) Net proved developed and undeveloped reserves January 1, 1996 2,317 1,141 1,486 748 110 5,802 436 6,238 Revisions 139 10 59 83 38 329 3 332 Purchases 2 -- -- -- 50 52 -- 52 Sales (31) (7) -- -- (5) (43) -- (43) Improved recovery 26 1 9 -- -- 36 -- 36 Extensions and discoveries 53 1 231 13 2 300 -- 300 Production (214) (63) (178) (89) (12) (556) (20) (576) -------------------------------------------------------------------------------------- December 31, 1996 2,292 1,083 1,607 755 183 5,920 419 6,339 Revisions 190 2 33 45 13 283 2 285 Purchases 1 -- -- -- -- 1 -- 1 Sales (6) (63) (6) -- -- (75) -- (75) Improved recovery 25 4 2 -- -- 31 -- 31 Extensions and discoveries 79 16 42 21 -- 158 2 160 Production (204) (70) (171) (91) (10) (546) (21) (567) -------------------------------------------------------------------------------------- December 31, 1997 2,377 972 1,507 730 186 5,772 402 6,174 Revisions 111 (12) 14 34 4 151 (15) 136 Purchases -- -- -- -- -- -- -- -- Sales (3) -- -- -- -- (3) -- (3) Improved recovery 15 4 9 -- -- 28 -- 28 Extensions and discoveries 24 10 25 24 349 432 1 433 Production (184) (72) (177) (86) (13) (532) (21) (553) -------------------------------------------------------------------------------------- December 31, 1998 2,340 902 1,378 702 526 5,848 367 6,215 Developed reserves, included above At December 31, 1996 1,925 512 815 582 44 3,878 396 4,274 At December 31, 1997 2,064 494 802 609 41 4,010 384 4,394 At December 31, 1998 2,033 435 724 609 48 3,849 351 4,200 ============================================================================================================================

F28 Net proved developed reserves are those volumes which are expected to be recovered through existing wells with existing equipment and operating methods. Undeveloped reserves are those volumes which are expected to be recovered as a result of future investments to drill new wells, to recomplete existing wells and/or to install facilities to collect and deliver the production from existing and future wells. Reserves attributable to certain oil and gas discoveries were not considered proved as of year-end 1998 due to geological, technological or economic uncertainties and therefore are not included in the tabulation. Crude oil and natural gas liquids and natural gas production quantities shown are the net volumes withdrawn from Exxon's oil and gas reserves. The natural gas quantities differ from the quantities of gas delivered for sale by the producing function as reported on page F31 due to volumes consumed or flared and inventory changes. Such quantities amounted to approximately 236 billion cubic feet in 1996, 268 billion cubic feet in 1997 and 242 billion cubic feet in 1998.

Consolidated Subsidiaries ---------------------------------------------------------------- Non- United Consolidated Total Natural Gas States Canada Europe Asia-Pacific Other Total Interests Worldwide - - ---------------------------------------------------------------------------------------------------------------------------------- (billions of cubic feet) Net proved developed and undeveloped reserves January 1, 1996 9,947 2,118 7,553 5,764 102 25,484 16,552 42,036 Revisions 422 (118) 101 107 13 525 196 721 Purchases 4 11 -- -- 13 28 11 39 Sales (36) (76) -- -- (1) (113) (3) (116) Improved recovery 39 18 5 -- -- 62 -- 62 Extensions and discoveries 615 61 506 53 -- 1,235 166 1,401 Production (841) (142) (525) (380) (8) (1,896) (747) (2,643) ----------------------------------------------------------------------------------------- December 31, 1996 10,150 1,872 7,640 5,544 119 25,325 16,175 41,500 Revisions (53) (43) (1) 433 -- 336 107 443 Purchases 2 -- -- -- -- 2 -- 2 Sales (27) (122) (6) -- -- (155) -- (155) Improved recovery (2) 19 17 -- -- 34 -- 34 Extensions and discoveries 450 24 363 1,687 -- 2,524 363 2,887 Production (831) (138) (531) (441) (8) (1,949) (633) (2,582) ----------------------------------------------------------------------------------------- December 31, 1997 9,689 1,612 7,482 7,223 111 26,117 16,012 42,129 Revisions 922 65 161 386 2 1,536 176 1,712 Purchases -- 2 -- -- -- 2 -- 2 Sales (23) (23) (10) -- -- (56) -- (56) Improved recovery 1 13 6 -- -- 20 -- 20 Extensions and discoveries 160 221 113 362 111 967 69 1,036 Production (832) (138) (565) (420) (7) (1,962) (587) (2,549) ----------------------------------------------------------------------------------------- December 31, 1998 9,917 1,752 7,187 7,551 217 26,624 15,670 42,294 Developed reserves, included above At December 31, 1996 8,216 1,392 4,872 3,995 83 18,558 6,754 25,312 At December 31, 1997 7,625 1,236 5,334 5,191 76 19,462 6,463 25,925 At December 31, 1998 7,812 1,231 5,034 5,424 75 19,576 6,740 26,316 ==================================================================================================================================

F29 SUPPLEMENTAL INFORMATION ON OIL AND GAS EXPLORATION AND PRODUCTION ACTIVITIES Standardized Measure of Discounted Future Cash Flows As required by the Financial Accounting Standards Board, the standardized measure of discounted future net cash flows is computed by applying year-end prices, costs and legislated tax rates and a discount factor of 10 percent to net proved reserves. The corporation believes the standardized measure is not meaningful and may be misleading.

Consolidated Subsidiaries ------------------------------------------------------------ Non- United Consolidated Total States Canada Europe Asia-Pacific Other Total Interests Worldwide - - ----------------------------------------------------------------------------------------------------------------------------------- (millions of dollars) As of December 31, 1996 Future cash inflows from sales of oil and gas $ 78,728 $ 21,969 $ 56,745 $ 26,336 $ 4,094 $187,872 $ 66,078 $253,950 Future production costs 17,523 5,145 13,198 9,309 842 46,017 28,324 74,341 Future development costs 3,395 1,509 5,826 2,632 593 13,955 1,691 15,646 Future income tax expenses 20,772 6,444 18,845 5,436 627 52,124 14,961 67,085 --------------------------------------------------------------------------------- Future net cash flows $ 37,038 $ 8,871 $ 18,876 $ 8,959 $ 2,032 $ 75,776 $ 21,102 $ 96,878 Effect of discounting net cash flows at 10% 18,022 4,808 6,703 3,955 1,203 34,691 13,066 47,757 --------------------------------------------------------------------------------- Discounted future net cash flows $ 19,016 $ 4,063 $ 12,173 $ 5,004 $ 829 $ 41,085 $ 8,036 $ 49,121 ================================================================================= As of December 31, 1997 Future cash inflows from sales of oil and gas $ 50,295 $ 8,449 $ 41,523 $ 25,800 $ 3,114 $129,181 $ 55,650 $184,831 Future production costs 14,978 3,833 11,166 9,277 787 40,041 26,131 66,172 Future development costs 3,705 1,486 5,034 4,310 384 14,919 1,341 16,260 Future income tax expenses 11,159 1,444 11,483 4,890 490 29,466 10,856 40,322 --------------------------------------------------------------------------------- Future net cash flows $ 20,453 $ 1,686 $ 13,840 $ 7,323 $ 1,453 $ 44,755 $ 17,322 $ 62,077 Effect of discounting net cash flows at 10% 10,135 834 5,159 3,679 761 20,568 11,067 31,635 --------------------------------------------------------------------------------- Discounted future net cash flows $ 10,318 $ 852 $ 8,681 $ 3,644 $ 692 $ 24,187 $ 6,255 $ 30,442 ================================================================================= As of December 31, 1998 Future cash inflows from sales of oil and gas $ 35,102 $ 8,228 $ 29,584 $ 17,613 $ 5,641 $ 96,168 $ 46,776 $142,944 Future production costs 13,730 2,757 10,957 7,045 1,589 36,078 19,549 55,627 Future development costs 3,682 1,152 4,639 3,235 1,740 14,448 905 15,353 Future income tax expenses 5,923 1,831 4,586 2,088 1,059 15,487 10,123 25,610 --------------------------------------------------------------------------------- Future net cash flows $ 11,767 $ 2,488 $ 9,402 $ 5,245 $ 1,253 $ 30,155 $ 16,199 $ 46,354 Effect of discounting net cash flows at 10% 5,879 1,300 3,492 2,673 981 14,325 10,121 24,446 --------------------------------------------------------------------------------- Discounted future net cash flows $ 5,888 $ 1,188 $ 5,910 $ 2,572 $ 272 $ 15,830 $ 6,078 $ 21,908 =================================================================================

Change in Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves Consolidated Subsidiaries 1998 1997 1996 - - ----------------------------------------------------------------------------------------------------------------------------------- (millions of dollars) Value of reserves added during the year due to extensions, discoveries, improved recovery and net purchases less related costs $ 872 $ 1,443 $ 3,581 Changes in value of previous-year reserves due to: Sales and transfers of oil and gas produced during the year, net of production (lifting) costs (6,517) (9,675) (10,875) Development costs incurred during the year 3,741 3,300 3,082 Net change in prices, lifting and development costs (18,047) (31,818) 25,677 Revisions of previous reserves estimates 742 1,568 3,157 Accretion of discount 3,081 5,542 3,330 Net change in income taxes 7,771 12,742 (12,032) -------------------------------- Total change in the standardized measure during the year $ (8,357) $(16,898) $ 15,920 ================================

F30 OPERATING SUMMARY

1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 - - ----------------------------------------------------------------------------------------------------------------------------- (thousands of barrels daily) Production of crude oil and natural gas liquids Net production United States 505 559 587 600 562 553 591 619 640 693 760 Canada 251 238 211 242 251 254 268 278 302 312 249 Europe 496 483 499 498 484 423 396 363 313 351 444 Asia-Pacific 236 250 244 302 325 347 346 342 331 328 345 Other Non-U.S. 79 69 74 84 87 90 104 113 126 120 121 ----------------------------------------------------------------------------------------------- Worldwide 1,567 1,599 1,615 1,726 1,709 1,667 1,705 1,715 1,712 1,804 1,919 =============================================================================================== (millions of cubic feet daily) Natural gas production available for sale Net production United States 2,063 2,062 2,094 2,055 2,021 1,764 1,607 1,655 1,778 1,827 1,805 Canada 227 203 194 281 286 328 326 355 413 417 209 Europe 3,037 3,038 3,361 2,804 2,842 3,049 3,097 3,010 2,694 2,707 2,787 Asia-Pacific 995 1,036 928 873 827 678 577 411 369 376 332 Other Non-U.S. -- -- -- -- 2 6 54 66 64 58 59 ----------------------------------------------------------------------------------------------- Worldwide 6,322 6,339 6,577 6,013 5,978 5,825 5,661 5,497 5,318 5,385 5,192 =============================================================================================== (thousands of barrels daily) Refinery throughput United States 1,047 1,070 988 1,004 994 970 1,017 1,017 950 1,093 1,055 Canada 445 448 433 424 428 416 399 419 484 486 351 Europe 1,521 1,529 1,522 1,416 1,503 1,492 1,489 1,490 1,425 1,387 1,335 Asia-Pacific 799 850 733 697 633 619 602 556 586 556 522 Other Non-U.S. 116 114 116 118 122 119 112 103 101 102 105 ----------------------------------------------------------------------------------------------- Worldwide 3,928 4,011 3,792 3,659 3,680 3,616 3,619 3,585 3,546 3,624 3,368 =============================================================================================== Petroleum product sales United States 1,338 1,342 1,261 1,198 1,196 1,152 1,203 1,210 1,109 1,147 1,113 Canada 570 561 542 526 520 517 513 527 597 625 433 Europe 1,969 1,930 1,925 1,869 1,898 1,872 1,847 1,863 1,796 1,718 1,680 Asia-Pacific and other Eastern Hemisphere 1,095 1,145 1,046 1,042 988 962 935 878 869 847 784 Latin America 461 452 437 441 426 422 411 391 384 383 386 ----------------------------------------------------------------------------------------------- Worldwide 5,433 5,430 5,211 5,076 5,028 4,925 4,909 4,869 4,755 4,720 4,396 =============================================================================================== Gasoline, naphthas 2,053 2,014 1,939 1,903 1,849 1,818 1,822 1,821 1,742 1,708 1,572 Heating oils, kerosene, diesel oils 1,738 1,743 1,718 1,655 1,644 1,569 1,557 1,561 1,491 1,498 1,424 Aviation fuels 456 457 442 414 403 379 376 372 382 382 344 Heavy fuels 523 539 498 488 530 558 546 535 543 507 466 Specialty petroleum products 663 677 614 616 602 601 608 580 597 625 590 ----------------------------------------------------------------------------------------------- Worldwide 5,433 5,430 5,211 5,076 5,028 4,925 4,909 4,869 4,755 4,720 4,396 =============================================================================================== (thousands of metric tons) Chemical prime product sales 17,204 17,301 15,712 14,377 13,969 13,393 13,463 12,560 12,453 12,324 12,152 =============================================================================================== (millions of metric tons) Coal production 15 15 15 16 36 36 37 39 40 36 32 =============================================================================================== (thousands of metric tons) Copper production 216 205 203 202 191 183 133 108 112 119 134 ===============================================================================================

Operating statistics include 100 percent of operations of majority owned subsidiaries; for other companies, crude production, gas, petroleum product and chemical prime product sales include Exxon's ownership percentage, and refining throughput includes quantities processed for Exxon. Net production excludes royalties and quantities due others when produced, whether payment is made in kind or cash. F31