SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (date of earliest event reported): April 6, 2001 SCHLUMBERGER N.V. (SCHLUMBERGER LIMITED) (Exact name of registrant as specified in its charter) Netherlands Antilles 1-4601 52-0684746 (State or other jurisdiction (Commission File Number) (IRS Employer of incorporation) Identification No.) 153 East 53rd Street, 57th Floor New York, New York 10022-4624 42, rue Saint-Dominique Paris, France 75007 Parkstraat 83, The Hague, The Netherlands 2514 JG (Addresses of principal executive offices) (Zip or Postal Codes) Registrant's telephone number in the United States, including area code: (212) 350-9400 277 Park Avenue, New York, New York 10172 (Former name or former address, if changed since last report)

Item 2. Acquisition or Disposition of Assets On April 6, 2001, Schlumberger Investments, a wholly owned subsidiary of Schlumberger Limited, announced that its offer for the ordinary share capital of Sema plc had been declared unconditional in all respects. As at 3:00 p.m. (London time), 10:00 a.m. (New York City time), on April 6, 2001, valid acceptances had been received in respect of 401,473,685 Sema shares and in respect of 5,539,937 Sema American depositary shares, each representing two Sema shares. These acceptances represent approximately 65.3% of the issued share capital of Sema. In addition, Schlumberger Investments had acquired 122,869,697 Sema shares through market purchases, representing approximately 20.0% of the issued share capital of Sema. Accordingly, as at 3:00 p.m. (London time), 10:00 a.m. (New York City time), on April 6, 2001, Schlumberger Investments had acquired 524,343,382 Sema shares, representing approximately 85.2% of the issued share capital of Sema. From April 6 to June 4, 2001, Schlumberger Investments acquired and paid for all remaining issued Sema shares. The aggregate consideration for the acquisition of 100% of the issued Sema shares is expected to be approximately $5.0 billion in cash. The purchase price for Sema shares acquired in the offer was determined following arm's length negotiations with Sema's management regarding its recommendation of the offer. The acquisition of Sema is being financed through existing cash resources of Schlumberger and from borrowings under Schlumberger's $3 billion credit facility dated February 20, 2001 with JP Morgan Plc, BNP Paribas, Salomon Brothers International Limited and Lehman Brothers International (Europe) (each as arrangers), Citibank International Plc as facility agent, and The Chase Manhattan Bank, BNP Paribas Citibank, N.A. and Lehman Commercial Paper Inc. Sema is an IT services company that provides its customers with the design, implementation, operations and management of information systems and IT-related consulting services. Among the industry sectors which Sema serves, Sema has increasingly focused on the telecommunications and finance sectors, and provides a range of its own software products specifically designed for these sectors in addition to its IT services. Sema's customers include a wide variety of businesses and governmental departments around the world. Sema's services and product offerings include systems integration and consulting; software products for the telecommunications, energy, transport and finance sectors; and outsourcing. Except as described in this paragraph, it is currently expected that the business and operations of Sema will continue to be conducted as they are currently being conducted. Schlumberger will continue to evaluate all aspects of the business, operations, capitalization, corporate and organizational structure, and management of Sema and will take such further actions as it deems appropriate under the circumstances then existing. Prior to the negotiations that resulted in the offer, Schlumberger had no material relationship with Sema or any substantial shareholder thereof. On February 16, 2001, Sema plc announced that profit before tax, minority interest and goodwill/intangibles amortization for the year ended December 31, 2000, was (pound)92 million under UK Generally Accepted Accounting Principles (GAAP). A reconciliation of this amount to amounts included elsewhere in this Form 8-K/A is as follows:

(Amounts in millions of UK Pounds) Actual income before amortization of goodwill/intangibles, tax and minority interest - UK GAAP (pound) 92 UK to US GAAP Adjustments (87) Amortization of goodwill and intangibles (214) ----- Actual (loss) before tax and minority interest - US GAAP (209) LHS results - January 1, 2000 to July 31, 2000 (6) Amortization of goodwill and intangibles (222) ----- Pro forma (loss) before tax and minority interest - US GAAP (pound) (437) ===== UK to US GAAP adjustments comprise numerous items, including adjustments pertaining to revenue recognition, contract accounting, employee stock options and pension plan accounting. These items are not expected to recur in 2001. Item 7. Financial Statements and Exhibits (a) Financial Statements of Business Acquired. The following audited financial statements are filed with this report: . Sema plc, as of and for the year ended December 31, 2000, denominated in UK Pounds sterling and prepared in conformity with US GAAP. (b) Pro Forma Financial Information. The following unaudited pro forma financial statements are filed with this report: . Schlumberger Pro Forma Consolidated Statement of Operations for the year ended December 31, 2000 as if the acquisition had taken place on January 1, 2000. . Schlumberger Pro Forma Consolidated Balance Sheet as at December 31, 2000 as if the acquisition had taken place on that date. . Sema plc Pro Forma Statement of Operations for the year ended December 31, 2000. The pro forma consolidated financial statements are presented for informational purposes only and are not necessarily indicative of the financial position or results of operations of Schlumberger that would have occurred had the acquisition been consummated on the dates mentioned above. In addition, the pro forma consolidated financial statements are not necessarily indicative of the future financial condition or results of operations.

In preparing the pro forma financial statements included in this Form 8-K/A, the following criteria were used: Sema Financial Statements - ------------------------- The audited financial statements of Sema plc for the year ended December 31, 2000, have been prepared in conformity with US GAAP and are based on the audited financial statements prepared in conformity with UK GAAP with the required adjustments to conform with US GAAP. These statements were prepared in UK Pounds and the following exchange rates have been used in translating to US Dollars: Statement of Income for the year ended December 31, 2000 $1 = (pound)0.656 Balance Sheet as of December 31, 2000 $1 = (pound)0.675 Sema plc acquired LHS on July 31, 2000 and accounted for this acquisition under the purchase method of accounting. The operating results of LHS for the period August 1, 2000 to December 31, 2000, are included in Sema's financial statements. In arriving at the pro forma results of Sema for the year ended December 31, 2000, the following adjustments have been made: . The operating results of LHS for the period January 1, 2000 to July 31, 2000 are included. . The amortization of goodwill and intangibles, arising as a result of the LHS acquisition, has been included for the period January 1, 2000 to July 31, 2000. Financing of the Acquisition of Sema plc - ---------------------------------------- Schlumberger estimates the cost of the acquisition to be $5.2 billion, including expenses, which will be financed as follows: . Use of existing Schlumberger funds $2.2 billion . External borrowing $3.0 billion In preparing the Schlumberger pro forma financial statements in this Form 8-K/A, it has been assumed that the acquisition of Sema plc took place on January 1, 2000. Consequently, adjustments have been made to the 2000 Statement of Operations to reflect the reduced interest income and increased interest expense resulting from the above internal and external financing. The interest rates used in computing these adjustments are: . Interest Income 5.50% (Schlumberger's yield on internal funds used) . Interest Expense 5.40% (The estimated cost of the external borrowing) If the above interest expense rate were to vary by one eighth of a percentage point, then pretax interest expense would change by $3.75 million.

Goodwill and Identifiable Intangibles - ------------------------------------- The goodwill and identifiable intangibles arising on the acquisition of Sema plc are included as adjustments in preparing the Schlumberger Pro Forma Consolidated Statement of Operations and Balance Sheet. Goodwill and identifiable intangibles aggregate $5.03 billion and have a composite life of 28 years. The goodwill, identifiable intangibles and related amortization which are included in the Sema plc pro forma Statement of Operations have been eliminated (in adjustments) in preparing the Pro Forma Consolidated Statement of Operations and Pro Forma Consolidated Balance Sheet in conjunction with the purchase accounting adjustments recorded in connection with the acquisition of Sema, by Schlumberger. The amount of goodwill and identifiable intangibles on the Sema plc Balance Sheet at December 31, 2000, was $3.41 billion. Purchase Accounting Adjustments - ------------------------------- Under the purchase method of accounting, the estimated cost of approximately $5.2 billion, including transaction costs, will be allocated to the underlying net assets in proportion to their respective fair values. Any excess of the purchase price over the estimated fair value of the tangible and identifiable intangible assets acquired and the liabilities assumed will be recorded as goodwill; at this time, the work needed to provide the basis for estimating these fair values and related amortization periods has not been completed. It is expected that the final allocation of the excess of purchase price over the book value will not differ materially from the amounts reflected herein. Purchase accounting adjustments consist primarily of severance costs ($81 million), facility reductions ($33 million), pension plan adjustments ($136 million) and tax restructuring costs ($50 million). Total purchase accounting adjustments aggregate $342 million, pretax. (c) Exhibits. The following Exhibit is included in this report: Exhibit 23 - Consent of Independent Accountants

SCHLUMBERGER PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS For the Year Ended December 31, 2000 (UNAUDITED) (Amounts in thousands of US Dollars) Historical Pro Forma Schlumberger Sema Adjustments Pro Forma ------------ ------------- ----------- ------------- Revenue: Operating $ 9,611,462 $ 2,373,628 $ -- $11,985,090 Interest and other income 423,255 14,634 (121,000)(1) 316,889 ------------ ------------- ----------- ------------- 10,034,717 2,388,262 (121,000) 12,301,979 ------------ ------------- ----------- ------------- Expenses: Cost of goods sold and services 7,371,542 2,438,110 (467,804)(2) 9,341,848 Research & engineering 540,698 82,012 -- 622,710 Marketing 437,128 150,457 -- 587,585 General 448,587 374,695 -- 823,282 Interest 276,081 9,451 162,000(3) 447,532 ------------ ------------- ----------- ------------- 9,074,036 3,054,725 (305,804) 11,822,957 ------------ ------------- ----------- ------------- Income (loss) before taxes and minority interest 960,681 (666,463) 184,804 479,022 Taxes on income 228,248 (38,354) (14,347)(4) 175,547 ------------ ------------- ----------- ------------- Income (loss) before minority interest 732,433 (628,109) 199,151 303,475 Minority Interest 2,163 (457) -- 1,706 ------------ ------------- ----------- ------------- Net Income (loss) $ 734,596 $ (628,566) $ 199,151 $ 305,181 ============ ============= =========== ============= Earnings Per Share: Basic $ 1.29 $ 0.54 ============ ============= Diluted $ 1.27 $ 0.53 ============ ============= Weighted Average Shares Outstanding: Basic 570,028 570,028 ============ ============= Diluted 580,076 580,076 ============ ============= Adjustments: (1) Reduction in Schlumberger's interest income $ (121,000) =========== (2) Reversal of Goodwill & Identifiable Intangibles amortization included in Sema's results $ (664,024) Amortization of Goodwill and Identifiable Intangibles arising on acquisition of Sema 196,220 ----------- $ (467,804) =========== (3) Increase in Schlumberger's interest expense $ 162,000 =========== (4) Reversal of tax on amortization of Identifiable Intangibles included in Sema's results $ 41,393 Tax benefit on additional interest expense (36,990) Tax benefit on amortization of Goodwill and Identifiable Intangibles arising on Sema acquisition (18,750) ----------- $ (14,347) ===========

SCHLUMBERGER PRO FORMA CONSOLIDATED BALANCE SHEET As of December 31, 2000 (UNAUDITED) (Amounts in thousands of US Dollars) Historical --------------------------------- Schlumberger(*) Sema Adjustments Pro Forma ---------------- ---------- -------------- ------------ Cash & Cash Equivalents $ 3,040,150 $ 256,148 $ (1,520,000) (1) $ 1,776,298 Accounts Receivable 2,768,848 941,630 - 3,710,478 Other Current Assets 1,684,213 17,333 31,260 (2) 1,732,806 ---------------- ---------- -------------- ------------ Total Current Assets 7,493,211 1,215,111 (1,488,740) 7,219,582 Long-Term Investments, held to maturity 1,547,132 30,074 (680,000) (3) 897,206 Investments in Affiliated Cos 654,516 1,333 - 655,849 Property and Equipment, net 4,394,514 237,037 - 4,631,551 Multiclient Seismic Data 975,775 - - 975,775 Goodwill and Identifiable Intangibles 1,716,427 3,411,111 1,769,105 (4) 6,896,643 Other Assets 391,156 156,889 - 548,045 ---------------- ---------- -------------- ------------ Total Assets $ 17,172,731 $5,051,555 $ (399,635) $ 21,824,651 ================ ========== ============== ============ Current Liabilities $ 3,990,905 944,147 $ 341,900 (5) $ 5,276,952 Long-Term Debt 3,573,047 5,185 3,000,000 (6) 6,578,232 Postretirement Benefits 476,380 - - 476,380 Minority Interest 605,313 20,741 - 626,054 Other Liabilities 231,870 430,963 (151,516) (7) 511,317 Shareholders' Equity 8,295,216 3,650,519 (3,590,019) (8) 8,355,716 ---------------- ---------- -------------- ------------ Total Liabilities and Shareholders' Equity $ 17,172,731 $5,051,555 $ (399,635) $ 21,824,651 ================ ========== ============== ============ (*) Reclassified, in part, for comparative purposes. Adjustments: (1) Cash & Cash Equivalents used for purchase of Sema stock $ (1,520,000) ============== (2) Deferred tax on purchase accounting adjustments $ 31,260 ============== (3) Long-Term Investments used for purchase of Sema stock $ (680,000) ============== (4) Elimination of Goodwill on Sema balance sheet $ (3,411,111) Goodwill and Identifiable Intangibles arising on Sema acquisition 5,180,216 -------------- $ 1,769,105 ============== (5) Purchase accounting adjustments $ 341,900 ============== (6) Bank Loans for financing the purchase of Sema stock $ 3,000,000 ============== (7) Elimination of deferred tax on intangibles on Sema balance sheet $ (283,412) Elimination of deferred tax on pension on Sema balance sheet (28,474) Deferred tax arising from Goodwill and Identifiable Intangibles 150,000 Net change to deferred tax (re:Italy) on Sema balance sheet 10,370 -------------- $ (151,516) ============== (8) Elimination of Shareholders Equity on Sema balance sheet $ (3,650,519) Other adjustments 60,500 -------------- $ (3,590,019) ==============

SEMA PLC PRO FORMA STATEMENT OF OPERATIONS For the Year Ended December 31, 2000 (UNAUDITED) UK Pounds Sterling in Thousands US Dollars in Thousands (a) -------------------------------------------------------------------------- --------------- Historical Pro Forma Pro Forma ----------------------------------- LHS 7 Sema months to Adjustments Sema Sema July 31 ----------------- --------------- --------------- ---------------- ------------ Revenue: Operating (pound) 1,480,500 (pound) 76,600 (pound) -- (pound)1,557,100 $ 2,373,628 Interest and other income 4,000 5,600 -- 9,600 14,634 ----------------- -------------- --------------- ---------------- ------------ 1,484,500 82,200 -- 1,566,700 2,388,262 ----------------- -------------- --------------- ---------------- ------------ Expenses: Cost of goods sold and services 1,331,700 45,800 221,900 (1) 1,599,400 2,438,110 Research & engineering 40,000 13,800 -- 53,800 82,012 Marketing 85,100 13,600 -- 98,700 150,457 General 230,400 15,400 -- 245,800 374,695 Interest 6,200 -- -- 6,200 9,451 ----------------- -------------- --------------- ---------------- ------------ 1,693,400 88,600 221,900 2,003,900 3,054,725 ----------------- -------------- --------------- ---------------- ------------ Loss before taxes and minority interest (208,900) (6,400) (221,900) (437,200) (666,463) Taxes on income (11,500) 1,400 (15,060) (2) (25,160) (38,354) ----------------- -------------- --------------- ---------------- ------------ Loss before minority interest (197,400) (7,800) (206,840) (412,040) (628,109) Minority Interest (300) -- -- (300) (457) ----------------- -------------- --------------- ---------------- ------------ Net Loss (pound) (197,700) (pound) (7,800) (pound)(206,840) (pound)(412,340) $ (628,566) ================= ============== =============== ================ ============ (a) Translation rate :(pound)0.656 to $1. Adjustments for LHS acquisition for the 7 months to July 31: - ----------------------------------------------------------- (1) Amortization of Goodwill (pound)172,500 Amortization of Identifiable Intangibles 49,400 -------------- (pound)221,900 ============== (2) Tax benefit on Amortization of Identifiable Intangibles (pound)(15,060) ==============

SEMA PLC REPORT OF THE INDEPENDENT ACCOUNTANTS To the Board of Directors and Shareholders of SEMA plc: In our opinion, the accompanying consolidated balance sheet and the related consolidated statement of income, statement of cash flows and consolidated statement of stockholders' equity present fairly, in all material respects, the financial position of SEMA plc and its subsidiaries at December 31, 2000, and the results of its operations and its cash flows for the year ended December 31, 2000 in conformity with accounting principles generally accepted in the United States of America. These financial statements are the responsibility of the Company's management; our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits of these statements in accordance with auditing standards generally accepted in the United States of America, 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 our opinion. /s/ PricewaterhouseCoopers ------------------------------ PricewaterhouseCoopers London 20 March 2001 (except for Note 21 which is as of April 6, 2001)

SEMA PLC CONSOLIDATED STATEMENT OF INCOME FOR THE YEAR ENDED DECEMBER 31, 2000 (pound) millions (except per share data) Revenue Operating 1,480.5 Interest income 4.0 ----------------- 1,484.5 ----------------- Operating Expenses Cost of products sold and services (1,331.7) Research and development (40.0) Marketing (85.1) General (230.4) Interest (6.2) ----------------- (1,693.4) ----------------- Loss before taxes and minority interest (208.9) Taxes on loss 11.5 ----------------- Loss before minority interest (197.4) Minority interest (0.3) ----------------- Net loss (197.7) ----------------- Basic and diluted loss per share (37.8)p Average shares outstanding 522,864,568 CONSOLIDATED STATEMENT OF COMPREHENSIVE LOSS FOR THE YEAR ENDED DECEMBER 31, 2000 (pound) millions Net loss (197.7) Other comprehensive loss: Foreign currency translation adjusted net of tax 4.4 Realized gain on sale of investments (16.5) Tax benefit on stock options 6.0 ----------------- Comprehensive loss (203.8) ----------------- The accompanying notes are an integral part of the consolidated financial statements 2

SEMA PLC CONSOLIDATED BALANCE SHEET AS AT DECEMBER 31, 2000 (pound) millions ASSETS Current Assets Cash and cash equivalents 144.4 Short-term investments 28.5 Receivables 635.6 Stock 11.7 ----------- 820.2 Long-term investments, held to maturity 20.3 Investments in affiliated companies 0.9 Fixed assets less accumulated depreciation 160.0 Goodwill and other intangibles, net 2,302.5 Deferred taxes on income 43.7 Other assets 62.2 ----------- 3,409.8 ----------- LIABILITIES AND STOCKHOLDERS' EQUITY Current Liabilities Accounts payable and accrued liabilities 571.7 Income tax liability 25.0 Bank overdrafts 40.3 Long-term debt due within one year 0.3 ----------- 637.3 Long-term debt 3.5 Deferred tax 219.5 Other liabilities 71.4 ----------- 931.7 ----------- Minority Interest 14.0 Stockholders' Equity Common stock (800,000 ordinary shares authorized at 10p each, 614,088,332 allotted, called-up and fully paid at 10p each) 61.4 Additional paid-in capital 2,414.1 Retained earnings 30.4 Treasury stock at cost (24.5) Other comprehensive income (17.3) ----------- 2,464.1 ----------- ----------- 3,409.8 ----------- The accompanying notes are an integral part of the consolidated financial statements 3

SEMA PLC CONSOLIDATED STATEMENT OF CASH FLOWS FOR THE YEAR ENDED DECEMBER 31, 2000 (pound) millions Cash flows from operating activities: Net loss (197.7) Adjustments to reconcile net loss to net cash provided by operating activities: Gain on sale of investments (17.8) Loss on sale of fixed assets 0.3 Depreciation and amortization 280.1 Stock compensation expense 13.9 Amounts written off investments 4.4 Change in operating assets and liabilities: Increase in receivables (105.1) Increase in inventories (4.4) Increase in provisions 44.5 Increase in accounts payable and accrued liabilities 68.6 Decrease in liability for interest (2.2) Decrease increase in estimated liability for taxes (35.2) Foreign exchange loss 3.6 ------------- NET CASH PROVIDED BY OPERATING ACTIVITIES 53.0 ------------- Cash flows from investing activities: Purchases of fixed assets (62.1) Acquisition of investments in SG share capital (4.4) Purchases of intangible assets (14.7) Stamp duty paid (1.7) Payment of deferred consideration (6.5) Sales of fixed assets & other 0.2 Net cash received on acquisitions 78.2 Sale of investments 18.3 ------------- NET CASH PROVIDED BY INVESTING ACTIVITIES 7.3 ------------- Cash flows from financing activities: Dividends paid (16.5) Sale of corporate bonds and treasury bills 8.9 Proceeds from issuance or ordinary shares 2.6 Payments on principal of capital leases (9.9) Proceeds from issuance of long-term debt 2.2 Payment of principal on long-term debt (0.9) Increase in cash overdrafts 23.2 ------------- NET CASH PROVIDED BY FINANCING ACTIVITIES 9.6 ------------- Effects of foreign exchange on cash and cash equivalents (1.2) Net increase in cash and cash equivalents 69.9 Cash and cash equivalents, beginning of year 75.7 ------------- CASH AND CASH EQUIVALENTS, END OF YEAR 144.4 ------------- The accompanying notes are an integral part of the consolidated financial statements 4

SEMA PLC CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY Common Stock ------------------------------------------------------------ Issued ----------------------------------- Accumulated Par Value Premium In Treasury other ----------------------- ----------- ------------------------ comprehensive Income Shares Amount Amount Shares Amount loss Retained Total ------------- --------- ----------- ------------- ---------- -------------- ---------- ----------- (pound) (pound) pound) (pound) (pound) (pound) Number millions millions Number (millions millions millions millions Balance, December 31, 1999 463,412,109 46.3 114.0 (2.4) 244.1 402.0 Translation adjustment 1.6 1.6 Realized gain on sales of investments (16.5) (16.5) Sales of treasury stock upon exercise of options 27,896 0.4 0.4 Employee share compensation 13.9 13.9 Purchase of treasury stock (1,920,315) (24.9) (24.9) New share capital subscribed 150,676,223 15.1 2,280.2 2,295.3 Net loss (197.7) (197.7) Dividends declared (16.0) (16.0) Tax benefit on stock options 6.0 6.0 ------------- --------- ----------- ------------- ---------- -------------- ---------- ----------- Balance, December 31, 2000 614,088,332 61.4 2,414.1 (1,892,419) (24.5) (17.3) 30.4 2,464.1 ------------- --------- ----------- ------------- ---------- -------------- ---------- ----------- The accompanying notes are an integral part of the consolidated financial statements 6

SEMA PLC NOTES TO CONSOLIDATED FINANCIAL STATEMENTS 1. DESCRIPTION OF BUSINESS Sema plc is an information technology, or IT, services company which provides its customers with the design, implementation, operation and management of information systems and IT-related consulting services. Among the industry sectors Sema plc serves, Sema plc has increasingly focused on the telecommunications and finance sectors, and provides a range of its own software products specifically designed for these sectors in addition to its IT services. Sema plc's customers include a wide variety of businesses and government departments located in over 70 countries around the world. Sema plc's services and product offerings include: (1) systems integration; (2) software products, principally for the telecommunications and finance sectors; and (3) outsourcing. Each of these service lines includes a consulting component. 2. SUMMARY OF ACCOUNTING POLICIES The Consolidated Financial Statements of Sema plc and its subsidiaries ("the Group") have been prepared in accordance with accounting principles generally accepted in the United States of America. PRINCIPLES OF CONSOLIDATION The Consolidated Financial Statements include the accounts of majority-owned subsidiaries. Significant 20% - 50% owned companies over which the Group exercises significant influence are accounted for using the equity method and classified in Investments in Affiliated Companies within the consolidated balance sheet. Investments where the Group has less than 20% of the voting rights and over which the Group does not exercise significant influence are accounted for at cost, and are included in long-term investments, held to maturity on the consolidated balance sheet. CASH AND CASH EQUIVALENTS Short-term marketable debt securities with maturities of three months or less are included within cash on the consolidated balance sheet. INVESTMENTS Investments in listed companies are accounted for as available-for-sale securities under SFAS No. 115 "Accounting for Certain Investments in Debt and Equity Securities", whereby any increases/decreases in market value, which are considered temporary, are reflected in other comprehensive income. For purposes of the Consolidated Statement of Cash Flows, the Group does not consider short-term investments to be cash equivalents as they generally have original maturities in excess of three months. Investments in the Group's own shares is considered treasury stock and is included as a reduction to shareholders' equity. USE OF ESTIMATES The preparation of consolidated financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. While actual results could differ from these estimates, management believes that the estimates are reasonable. 7

REVENUE RECOGNITION Systems integration turnover is recognized on a percentage of completion basis for fixed price contracts and as the services are delivered for time and materials contracts. All turnover is recorded on a gross basis. Losses on fixed price contracts are recognized in the first period as they are incurred or foreseen. Outsourcing turnover is recognized as services are delivered and earned. The Group's product revenue is derived from the sale of licenses for its software, maintenance and related services, which include installation, consulting and training services. If services are essential to the functionality of the software, revenue derived from the contract is recognized based on the percentage of completion of the services provided during the period compared to the total estimated services provided over the entire contract. If services are not essential to the functionality of the software, the revenue for each element of the contract is recognized separately based on its respective vendor specific objective evidence of fair value when all of the following conditions are met: a signed contract is obtained, delivery has occurred, fee is fixed and determinable and collectibility is probable. Vendor specific objective evidence of fair value is determined as being the price for the element when sold separately. If an ongoing vendor obligation exists under the license arrangement, or if any uncertainties with regard to customer acceptance are significant, turnover for the related element is deferred based on its vendor specific objective evidence of fair value. If vendor specific objective evidence of fair value does not exist for all undelivered elements, all revenue is deferred until sufficient evidence exists or all elements have been delivered. Payments received in advance of revenue recognition are recorded as deferred revenue. Revenue from annual maintenance and support are deferred and recognized ratably over the term of the contract. Revenue from consulting and training are deferred and recognized when the services are performed and collectibility is deemed probable. If a discount is offered in a multiple-element arrangement, a proportionate amount of that discount is applied to each element included in the arrangement based on each element's fair value without regard to the discount, except that no discount is allocated to any upgrade rights. FOREIGN CURRENCY TRANSACTIONS AND TRANSLATION Assets and liabilities denominated in foreign currencies are translated into Sterling at the rate ruling at the balance sheet date. Transactions are recorded at the rate prevailing at the date of the transaction or at the rate of any related forward contract. Exchange differences arising are dealt with through the profit and loss account. The revenues, expenses, gains and losses of overseas Affiliated companies are translated into Sterling at the weighted average rate for the year and their assets and liabilities at the exchange rate as of the balance sheet date. The cumulative translation adjustment is recorded as a separate component of shareholders' equity. FINANCIAL INSTRUMENTS Derivative instruments utilized by the Group are forward exchange contracts and interest rate swaps. The Group only utilizes derivative instruments for hedging purposes. A derivative instrument is considered to be used for hedging purposes when it relates directly to an existing underlying exposure and it reduces the risk to the Group. Gains or losses arising on forward foreign exchange contracts are only recognized when the underlying transaction, which is being hedged, is settled. Interest differentials on interest rate swaps are recognized by adjusting net interest expense. 8

INVENTORIES Inventory is stated at the lower of cost and net realizable value, which approximates market. The cost is determined using the First-In-First-Out (FIFO) method. Costs include all costs incurred in bringing each product to its present location and condition. Inventory consists of raw materials and consumables, work in progress, and finished goods. Work is undertaken for customers either on the basis that time and materials are billed as incurred or according to the terms of fixed or limited-price contracts (which are substantially long-term). With respect to the former, revenues and expenses are recognized according to time worked. With respect to fixed or limited-price contracts, revenue is recognized according to the percentage of the estimated total contract value completed. All losses are fully recognized as soon as incurred or foreseen. GOODWILL Goodwill arising on the acquisition of Affiliated companies, representing the excess of consideration given over the fair value of net assets acquired, is recorded as an intangible asset. Goodwill is amortized on a straight-line basis in the profit and loss account over the estimated useful life of the asset ranging from 5 to 10 years, the Directors estimate of the economic life of the assets. OTHER INTANGIBLE ASSETS Other intangible assets, representing separately identifiable assets from an acquisition or purchased software licenses are capitalized at fair value or cost, respectively. Separately identified intangible assets from an acquisition are amortized over their useful lives. These consist mainly of customer contracts and are amortized over a period of 5-10 years. Software license costs are amortized over the period of the license or the term of the sales contract, whichever is shorter. Amortization is charged from the commencement of the license's deployment. SOFTWARE DEVELOPMENT COSTS The Group capitalizes all internal and external costs directly associated with the development of software for internal use under AICPA Statement of Position 98-1 (SOP 98-1) "Accounting for the Costs of Computer Software Developed or Obtained for Internal Use". These costs include designing, configuration, coding, installation, and testing. Costs associated with the development of software to be sold or otherwise marketed are capitalized subsequent to the establishment of technological feasibility up to the product's general release under SFAS No. 86 "Accounting for the Costs of Computer Software to be Sold, Leased, or Otherwise Marketed". These costs are amortized over the estimated economic life of the software product. To date, the period between achieving technological feasibility, which the Group has defined as the establishment of a working model, and the general availability of such software has been short and software development costs qualifying for capitalization have not been significant. Accordingly, the Group has not capitalized any software development costs, including software developed for internal use and for sale to third parties, in the year ended December 31, 2000. RESEARCH AND DEVELOPMENT Expenditure on research and development is charged against the income of the period in which it is incurred, except to the extent that such expenditure is recoverable from third parties. 9

PENSIONS Defined benefit schemes The expected cost of providing pension benefits to employees is charged to the profit and loss account accruing in the period as determined by SFAS No. 87 "Employers' Accounting for Pensions". This requires readjustment of the significant actuarial assumptions annually to reflect current market and economic conditions. Defined contribution schemes Pension costs charged to the consolidated profit and loss account represent the amount of the contribution payable to the scheme in respect of the accounting period. FIXED ASSETS AND DEPRECIATION Fixed assets are stated at cost less accumulated depreciation, which is provided for by charges to income over the estimated useful lives of the assets using the straight-line method. Fixed assets include land and buildings, computer equipment and software licenses, office furniture, cars and equipment. Expenditures for maintenance and repairs are charged to expense as incurred. Additions and major replacements or betterments that increase capacity or extend useful lives are added to the cost of the asset. Upon sale or other disposition, the applicable amounts of asset cost and accumulated depreciation are removed from the accounts and the net amount, less proceeds from disposal, is charged or credited to income. The estimated useful lives of fixed assets are as follows: - - Buildings: between 20 and 50 years, or the period of any leasehold - - Software licenses: 5 years - - Computer equipment: between 1 and 4 years or life of the related facilities management contracts - - Office furniture and equipment: between 5 and 20 years - - Motor cars: 3 years - - Freehold land is not depreciated. LEASING The Group follows the reporting requirements of SFAS No. 13 "Accounting for Leases". Leases classified as capital leases are recognized as assets and liabilities in the balance sheet at amounts equal to the fair value of the leased property at the inception of the lease or, if lower, at the present value of the minimum lease payments. Lease payments are apportioned between imputed finance charge and the reduction of the outstanding liability. The lease asset is depreciated during the period of expected use on a systematic basis consistent with the depreciation policy for depreciable assets that are owned. The amounts paid under operating leases are charged to the consolidated profit and loss account as incurred. IMPAIRMENT OF LONG-LIVED ASSETS The Group reviews the carrying value of its long-lived assets, including goodwill, whenever events or changes in circumstances indicate that the historical cost-carrying value of an asset may no longer be appropriate in accordance with SFAS No. 121 "Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets to be Disposed Of" ("SFAS No.121"). The Group assesses recoverability of the carrying value of the asset by estimating the future net cash flows expected to result from the asset, including eventual disposition. If the future net cash flows are less than the carrying value of the asset, an impairment loss is recorded equal to the difference between the asset's carrying value and fair value. The Group has determined that no impairments would have been recognized under SFAS No. 121. 10

STOCK COMPENSATION COSTS The Group follows SFAS No.123 "Accounting for Stock-Based Compensation" whereby compensation cost represents the difference between the estimated fair value of the option at the date of grant using an option pricing model and the exercise price. This model considers the stock price at grant date, the exercise price and expected life of the option, expected volatility, expected dividend yield and a risk-free interest rate. This difference is amortized over the expected performance period or vesting period of the applicable options. See note 18 for a description of the Group's stock option plans. Tax credits obtained from the deduction of the Group's contribution to the Qualified Employee Share Trust (QUEST) are accounted for as a credit to shareholders' funds. DIVIDENDS Dividends are recorded as a reduction to shareholders' equity only when they have been formally declared. Formal declaration requires approval by the Board of Directors and the shareholders. EARNINGS PER SHARE Basic earnings/(loss) per share is calculated by dividing net income/(loss) by the weighted average number of common shares outstanding during the year. Diluted earnings/(loss) per share is calculated by dividing net income/(loss) by the weighted average number of common shares outstanding assuming dilution, the calculation of which assumes that all stock options and potentially dilutive securities, such as convertible loans, were converted to shares as of the beginning of the year or at the time of issuance, if later. TAXES ON INCOME The Group uses the liability method of accounting for income taxes, wherein deferred tax assets and liabilities are recognized for future tax consequences attributable to temporary differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using tax rates expected to apply to taxable income in the years in which those temporary differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period that includes the enactment date. Deferred tax assets are reduced by a valuation allowance if, based on the weight of the available evidence, it is more likely than not that some portion or all of the deferred tax assets will not be realized. As changes in tax laws or rates are enacted, deferred tax assets and liabilities are adjusted through income tax expense. 11

3. SEGMENTAL ANALYSIS The analyses of turnover, profit before tax, and net assets by country and by activity are as follows: Turnover Turnover (Loss)/profit by destination by origin before tax Net assets (pound)m (pound)m (pound)m (pound)m By Geography UK 522.8 586.5 6.9 170.0 France 278.6 289.1 (1.4) 94.1 Sweden 165.8 148.7 (8.8) 28.2 Spain 92.8 108.8 13.2 24.9 Italy 106.2 127.4 4.2 53.1 Germany 41.5 57.5 (52.9) 580.0 North America 33.9 27.3 (168.0) 1,503.9 Other 238.9 135.2 (2.1) 23.9 ---------------- ----------- -------------- ------------- Total continuing activities 1,480.5 1,480.5 (208.9) 2,478.1 ---------------- ----------- -------------- ------------- Inter-segmental turnover 64.1 ----------- 1,544.6 ----------- The inter-segmental turnover disclosed above is derived from the following geographic regions: (pound)m By Geography UK 16.5 France 29.1 Sweden 0.2 Spain 8.0 Italy 0.4 Germany 1.1 North America 3.1 Other 5.7 ------------------------- Total continuing activities 64.1 ------------------------- 12

Turnover (Loss)/profit by origin before tax Net assets (pound)m (pound)m (pound)m By Activity Systems integration 604.1 (40.8) 135.6 Outsourcing 463.2 24.9 91.7 Products 231.6 (127.3) 1,577.6 Managed services 135.2 12.2 26.8 Business continuity 46.4 5.0 15.9 Adjustments -- (82.9) 630.5 --------------- -------------- ------------- Total continuing activities 1,480.5 (208.9) 2,478.1 --------------- -------------- ------------- The results for acquisitions are included within the products segment in the table above. Net assets is calculated by taking total assets of (pound)3,409.8m and reducing it for liabilities of (pound)931.7m. This is a measurement of financial position used by management in their review of segment results. The Group has made certain adjustments to the management accounts in order to reconcile the segment information to the consolidated financial statements. Amounts for acquisitions during the year primarily comprise the results of LHS Group Inc. The acquisition was completed on July 29, 2000. Further details regarding acquisitions are included in note 11. Description of activities: . Systems Integration - the process of designing, implementing and integrating IT systems, including proprietary and third party software, with existing IT systems. . Software Products - the sale of products including installation and consulting with an up-front license, followed by annual maintenance fees. The IPRs are owned by Sema. . Outsourcing - the use, by companies and governments, of third parties such as Sema to manage and operate all or part of their information systems. . Managed Services - the provision of outsourcing services of a non-IT nature to companies and governments. . Business Continuity - the provision of business continuity and disaster recovery services to customers to allow them to continue working at an alternative location should their own location become unavailable due to power outages, accidents, natural disasters or terrorist activity. 4. RESEARCH AND DEVELOPMENT The Group expenses all research and development costs as incurred. The research and development costs incurred for the year ended December 31, 2000 were (pound)40.0m. 5. EARNINGS PER SHARE Basic EPS is computed by dividing income available to common shareholders by the weighted average number of common shares outstanding for the year. 6. PENSION ARRANGEMENTS 13

The Group operates a number of defined contribution and defined benefit pension schemes in Europe and the Asia-Pacific region. The total cost for the Group for these schemes was (pound)3.0 million. In France, Belgium, Germany, Italy, Singapore and Sweden, the contributions are mainly invested in national schemes managed by government or external agencies, and to this extent the amounts are included in the figures disclosed under social security costs. DEFINED CONTRIBUTION SCHEMES Pension costs of (pound)1.9m charged to the consolidated statement of income represents the amount of the contribution expense to the schemes for the year ended December 31, 2000. DEFINED BENEFIT SCHEMES The principal defined benefit schemes in the Group are in the UK. Pension costs of (pound)1.1m is charged to the consolidated statement of income on a systematic basis over the service lives of the eligible employees based upon payroll and actuarial methods, assumptions and advice in accordance with the reports of qualified independent actuaries. This is in accordance with SFAS No. 87, which requires readjustment of the significant actuarial assumptions annually to reflect current market and economic conditions. In addition, SFAS No. 132 also required disclosure of the components of the net periodic pension cost and the funded status of the pension plans. The prepaid benefit cost amounts to (pound)63.5m. The aggregate pension disclosure for the Sema Pension Scheme, the Sema CS Pension Scheme and the Shares Cost Section of the BRBS Scheme in accordance with SFAS No. 132 is as follows: (pound)m Components of pension expense: Net service cost 16.0 Interest cost 20.5 Expected return on plan assets (31.5) Recognized net actuarial loss (1.2) Amortization of transitional asset (0.9) Recognition of curtailment gain (1.8) ----------- Net periodic benefit cost 1.1 ----------- 14

The following table sets forth the funded status of the UK plans: (pound)m Funded status 50.8 Unrecognized net actuarial loss 15.6 Unrecognized transitional asset (2.9) ----------- Prepaid benefit cost 63.5 ----------- Change in benefit obligation during the year: (pound)m Benefit obligation at January 1, 2000 301.1 Effect of remeasurement 26.4 Service cost 16.0 Interest cost 20.5 Contributions by plan participants 6.3 Actuarial gains (13.2) Benefits paid (13.1) Transfers in 0.4 Curtailment gain (1.6) Acquisition 5.9 ----------- Benefit obligation at December 31, 2000 348.7 ----------- Change in plan assets during the year: (pound)m Fair value of plan assets at January 1, 2000 394.0 Actual return on plan assets (7.5) Employer contribution 14.0 Contributions by plan participants 6.3 Acquisition 5.4 Transfers in 0.4 Benefits paid (13.1) ----------- Fair value of plan assets at December 31, 2000 399.5 ----------- Plan assets are held in separately administered trusts and consist principally of listed debt and equity securities. Assumptions used to determine the pension cost for the plans: Rate of return on assets 8.0% Discount rate 6.0% Salary growth 3.5% Inflation 2.5% Future working lifetime (1) 15 years (1) The future working lifetime for the shared cost section BRBS Scheme is 10 years in 2000. 15

7. OTHER EXPENSES (pound)m Recognized within operating expenses: Profit on disposal of investment 17.8 Restructuring costs (13.3) Amounts written off investments (4.4) During the year the Group sold its remaining interest in Openwave.com Inc. (formerly Phone.com Inc.), a US company. 336,688 shares were sold resulting in cash proceeds of(pound)18.3m and a profit of(pound)17.8m. The restructuring costs of (pound)13.3m paid in the year related to the fundamental restructuring of the Group's outsourcing activities, intended to improve the Group's competitive position in this market. The results for the year include a write down of (pound)4.4m in the value of Sema's investment portfolio following a Directors' valuation at December 31, 2000. This item had no cash effect in the year. The net tax expense on the above items is (pound)1.1m. 8. TAXATION (pound)m United Kingdom Corporation Tax At 30% Current 15.3 Prior year -- Deferred 3.0 ---------- 18.3 Overseas taxation Current 9.1 Prior year 0.1 Deferred (39.1) ---------- (29.9) Associated undertakings 0.1 ---------- Tax on credit or loss on ordinary activities (11.5) ---------- In 2000 and in prior years, the Group has taken advantage of group relief provisions for tax purposes where appropriate. As of December 31, 2000 the Group has a payable for income taxes of (pound)25.0m. 16

Deferred taxes result from temporary differences in the recognition of income and expenses for financial reporting purposes and for tax purposes. Components of the Group's net deferred tax liability are as follows: (pound)m Deferred tax liabilities - non current: Accelerated depreciation 2.9 Provision for tax on Swedish accruals 3.9 Other 2.1 Pension 19.2 Intangibles 191.4 ---------- Total deferred tax liabilities - non current 219.5 ---------- Deferred tax assets - non current: Book over tax depreciation 14.3 Provisions on acquisition 0.2 Provisions 26.8 Net operating loss carry forwards 44.9 ---------- Total deferred tax assets - non current 86.2 Valuation allowance (42.5) ---------- Net deferred tax assets - non-current 43.7 ---------- Net deferred tax liability provided 175.8 ---------- Net tax losses carried forward at December 31, 2000 amounted to (pound)44.6m. The Group does not have any current deferred tax assets or liabilities, as all temporary differences are non-current. Reconciliation of tax charge to statutory rate on profits follows: (pound)m Profit before tax on ordinary activities (208.9) ---------- Expected tax effect at 30% for 2000 (62.7) Actual tax credit 11.5 ---------- Difference to reconcile (51.2) ---------- Permanent differences: Goodwill amortization (50.8) Stock option compensation (4.2) Effect of tax rate change 3.6 Trading losses unrecognized (7.6) Valuation on provisions made in the year (0.1) Brought forward tax losses utilized 7.7 Other 0.2 ---------- Total difference reconciled (51.2) ---------- The activity in the Group's valuation allowance for deferred tax assets consists of the following: (pound)m Balance at January 1, 2000 2.9 Additions in the year due to loss carry forwards 39.6 ---------- Balance at December 31, 2000 42.5 ---------- 17

The valuation allowance allocated by tax jurisdiction is as follows at December 31, 2000: (pound)m UK -- Other 42.5 ---------- 42.5 ---------- 9. INTANGIBLE ASSETS Other Goodwill Intangibles Total (pound)m (pound)m (pound)m COST At January 1, 2000 254.7 43.0 297.7 Additions (note 11) 1,687.6 674.6 2,362.2 On acquisition of affiliated companies -- 1.5 1.5 Disposals (0.4) -- (0.4) Foreign exchange 0.6 (0.1) 0.5 ------------- ------------- ------------ AT DECEMBER 31, 2000 1,942.5 719.0 2,661.5 AMORTISATION At January 1, 2000 124.5 19.6 144.1 Charge for the year 168.9 44.7 213.6 Write off of IPR & D (see note 11) -- 0.6 0.6 On acquisition of affiliated companies -- 0.6 0.6 Foreign exchange 0.1 -- 0.1 ------------- ------------- ------------ AT DECEMBER 31, 2000 293.5 65.5 359.0 NET BOOK AMOUNT DECEMBER 31, 2000 1,649.0 653.5 2,302.5 ------------- ------------- ------------ Net book amount December 31, 1999 130.2 23.4 153.6 ------------- ------------- ------------ The goodwill arising on acquisitions made in 2000 of Affiliate companies is being amortized on a straight-line basis over 5-10 years from the date of acquisition, depending on the circumstances and nature of the business acquired. The goodwill arising on the acquisition of LHS Group Inc. during the year is being amortized over five years, which is the period the Directors estimate that the values of the businesses acquired are expected to exceed the value of the underlying assets. Other intangibles consist of software licenses acquired, customer contracts, assembled workforce and trademarks. These are being amortized over a period of 5-15 years, depending on management's estimate of their useful lives. 18

10. TANGIBLE FIXED ASSETS Computer equipment Office Land and furniture and software cars and buildings licenses equipment Total (pound)m (pound)m (pound)m (pound)m COST At January 1, 2000 37.2 272.5 70.3 380.0 On acquisition of affiliated companies 0.6 21.2 12.6 34.4 Additions 3.7 38.4 22.0 64.1 Disposals (1.4) (10.6) (9.3) (21.3) Foreign exchange adjustment 0.2 2.4 2.4 5.0 ------------- -------------- ------------- -------------- AT DECEMBER 31, 2000 40.3 323.9 98.0 462.2 ------------- -------------- ------------- -------------- DEPRECIATION At January 1, 2000 11.6 189.9 35.5 237.0 On acquisition of affiliated companies - 12.0 4.9 16.9 Charge for the year 2.7 46.5 16.7 65.9 On disposals (0.1) (10.3) (9.3) (19.7) Foreign exchange adjustment (1.0) 1.8 1.3 2.1 ------------- -------------- ------------- -------------- AT DECEMBER 31, 2000 13.2 239.9 49.1 302.2 ------------- -------------- ------------- -------------- NET BOOK AMOUNT 27.1 84.0 48.9 160.0 DECEMBER 31, 2000 ------------- -------------- ------------- -------------- The cost and accumulated depreciation of tangible fixed assets held under capital leases were: AT DECEMBER 31, 2000 Cost 1.8 45.3 3.2 50.3 Accumulated depreciation 0.3 39.4 2.8 42.5 19

The depreciation charge for the year includes amounts in respect of tangible fixed assets held under capital leases of: Computer equipment Office Land and Furniture And software cars and Buildings licenses Equipment Total (pound)m (pound)m (pound)m (pound)m FOR THE YEAR ENDED DECEMBER 31, 2000 0.1 8.9 0.5 9.5 ------------- -------------- --------------- --------------- The net book amount of land and buildings comprises freeholds of (pound)14.2m and leaseholds of (pound)12.9m. At December 31, 2000, the Group had contracted for capital expenditure, for which no provision has been made in these accounts, of (pound)1.6m. The Company had no capital commitments at the end of 2000. 11. AFFILIATED COMPANIES The principal Affiliated companies at December 31, 2000, which were fully consolidated in the year, and which are engaged in the provision of information technology services, were as follows (all holdings were in ordinary shares): Immediate holding company (%) Country of incorporation and operation DIRECT AFFILIATED COMPANIES Sema SA 99.9 France Sema UK Limited 100 England INDIRECT AFFILIATED COMPANIES Sema Group GmbH 100 Germany Sema Group SA* 100 Spain Sema Sweden AB 100 Sweden Sema Telecom SA 100 France Sema Outsourcing SA 100 France Sema SpA 100 Italy Sema Canada Limited 100 England/Canada Sema Pte Limited 100 Singapore Sema Global Recovery Services Limited 100 England LHS Group Inc 89.4 USA Sema Group Inc 100 USA LHS Verwaltungs GmbH & Co. Projekt KG zur Durchfuhrung Von 100 Germany Softwareprojekten Since the year-end, several of the entities listed above changed their names by the removal of the word "Group". These changes were implemented so that subsidiary names remained uniform with Sema plc (formerly SEMA Group plc, having changed its name on December 1, 2000). In the case of the former Sema Group Recovery Services companies, they are now known as Sema Global Recovery Services. 20

ACQUISITIONS LHS Group Inc On July 29, 2000 the Group acquired 84.9% of the outstanding equity in LHS Group Inc ("LHS") and an option to acquire the remaining 15.1% by June 30, 2004. The Group's current holding entitles it to 99% of the shareholder votes and full authority to manage LHS in any way it deems appropriate . LHS is a leading global provider of billing and operations support software and services to the communications industry. The consideration for the acquisition of LHS was (pound)2,159.9m, including costs. The terms of the sale provided for one LHS ordinary share to be converted into 2.6 Sema ordinary shares. As of July 29, 2000 LHS had 59,444,836 ordinary shares outstanding, of which 50,535,665 became convertible into 131,392,728 Sema ordinary shares immediately on acquisition. The balance of 8,909,171 LHS shares are convertible at a future date. As a result, under US GAAP a minority interest of 15% is recorded. Subsequent to July 29, 2000 certain of the shares representing this minority interest were converted into Sema plc ordinary shares. This gave rise to additional goodwill of approximately (pound)265 million. The price of (pound)14.86 per share was calculated based on the average closing price of the Sema ordinary shares on the five days prior and subsequent to the day the merger was announced, which was March 15, 2000. Also included in the consideration is the fair value of the outstanding options which vest on the date of the merger held by LHS stockholders on March 15, 2000 (7.4 million options). The fair value of those options has been determined consistent with the methodology prescribed under SFAS No. 123, "Accounting for Stock-Based Compensation". The fair value was estimated using the Black-Scholes option method with the following assumptions: risk free interest rate, 6.0%; dividend yield, 0.29%; expected volatility, 60.86%; expected life, 1 year. The weighted-average grant fair value of each LHS option which vests on the date of the merger is (pound)10.44. The cost of acquisition has been determined as follows (pound)m Issue of 131.4 million Sema ordinary shares at(pound)14.86 ($23.99) per share 1,951.9 Fair value of options which vest at date of merger 190.1 --------------- 2,142.0 Merger fees and expenses 17.9 --------------- 2,159.9 --------------- The total estimated purchase price of the merger has been allocated to assets and liabilities based on management's estimate of their fair values. The excess of the purchase price over the fair value of the net assets acquired, including identifiable intangible assets, has been allocated to goodwill. 21

The table below sets out the details of the acquisition of LHS Inc. which was completed on July 29, 2000. Fair Value (pound)m Fixed assets 15.7 Goodwill 1,402.6 Intangibles Customer lists 444.7 Tradenames 18.0 Assembled workforce 27.7 Developed technology 169.0 In-process research and development 0.6 Investments 9.8 Debtors 60.8 Stock 8.6 Marketable debt securities 34.5 Deferred Tax 2.4 Cash 48.6 Minority Interest (17.4) Creditors, accruals and provisions (65.7) ----------- Net assets acquired 2,159.9 ----------- Consideration and related costs: Sema ordinary shares 1,951.9 LHS outstanding options 190.1 Acquisition costs 17.9 ----------- Total 2,159.9 ----------- The acquisition has been accounted for under the purchase method from the effective date of acquisition and the goodwill arising (note 9) has been capitalized as an intangible asset. The amount allocated to in-process research and development of (pound)0.6m was written off by the Group immediately subsequent to the acquisition. 22

Pre-acquisition results of LHS Inc. The summarized profit and loss account and statement of total recognized gains and losses of LHS, prepared under US GAAP for the 7 months ended July 31, 2000, and translated at the average exchange rate for the period of (pound)1 = $1.562 is given below. 7 months ended 31 July 2000 (pound)m Revenue 82.1 Expenses (88.5) -------------------- Loss before taxes (6.4) Taxes (1.4) -------------------- Net loss (7.8) -------------------- The unaudited condensed pro forma profit and loss account for the Group, combined as if the acquisition of LHS took place on January 1, 2000 for the year ended December 31, 2000 is as follows: (pound)m, except per share data Revenue 1,566.6 Expenses (2,003.8) ------------------ Loss before taxes and minority interest (437.2) Taxes 10.1 Minority interest (0.3) ------------------ Net loss (427.4) ------------------ Basic earnings per share (81.7) ------------------ In management's opinion, these unaudited pro forma results are not necessarily indicative of what the actual combined results might have been if the acquisition had been effective at January 1, 2000 for the year ended December 31, 2000. The principal acquisition during the year of LHS had the following impact on the Consolidated Cash Flow Statement for the five months ended December 31, 2000: (pound)m Net cash outflow from operating activities (4.7) Returns on investment and servicing of finance 1.5 Investing activities (4.2) Financing and management of liquid resources 2.7 --------------- (4.7) --------------- 23

12. AFFILIATED COMPANIES AND INVESTMENTS Investments Affiliated companies Group -------------------- Share of Total Shares profit/(losses) --------------------------------------------------------- (pound)m (pound)m (pound)m (pound)m COST At January 1, 2000 5.0 0.8 0.6 6.4 Share of retained profits less losses -- -- 0.1 0.1 As part of acquisitions in the year 10.1 -- -- 10.1 Disposals (0.6) (0.3) -- (0.9) Reclassification to short term marketable debt (2.2) -- -- (2.2) securities Additions 12.4 0.1 -- 12.5 --------------------------------------------------------- AT DECEMBER 31, 2000 24.7 0.6 0.7 26.0 --------------------------------------------------------- AMOUNTS PROVIDED At January 1, 2000 -- (0.1) (0.1) (0.2) Amounts provided in year (4.4) -- (0.2) (4.6) AT DECEMBER 31, 2000 (4.4) (0.1) (0.3) (4.8) --------------------------------------------------------- NET BOOK AMOUNT DECEMBER 31, 2000 20.3 0.5 0.4 21.2 --------------------------------------------------------- Associated Undertakings The principal associated undertaking at December 31, 2000, which is engaged in the provision of information technology services, is Pareli SA incorporated in France. The proportion of shares held and the voting rights in this company are 49%. Investments During the year the Group disposed of its remaining investment in Openwave.com Inc. (formerly Phone.com Inc.), a company incorporated in the USA specializing in interactive solutions for mobile telephony and internet applications. The sale is summarised as follows: (pound)m Proceeds from sale 18.3 Cost of investment disposed (0.5) --------------- Gain on sale of investment 17.8 --------------- The current year's net investment of (pound)20.3m related principally to the Group's 11% investment in Athene Software, Inc and long term marketable securities acquired on the acquisition of Group undertakings and a 10% investment in Mirror Image Communications Limited. Athene Software Inc. is a USA based company which provides customer focused intelligent Customer Relationship Management software for communications and e-commerce industries including Wireless and Wireline service providers, Cable TV and Direct Broadcast Satellite providers. Mirror Image Communications Limited is a UK based company which intends to develop a business to business supply chain integration hotel booking systems. Other additions to investments in the year included (pound)2m additional capital contribution in Convergence Partners II L.P. and an initial investment of (pound)0.1m in Portview Communications Partners LP. Portview Communications Partners LP is a venture capitalist entity which intends to invest in telecommunications technology companies. 24

13. STOCK 2000 (pounds)m Raw materials and consumables 3.3 Work in progress 1.9 Finished goods 6.5 --------------- 11.7 --------------- 14. ACCOUNTS RECEIVABLE 2000 (pound)m Trade accounts receivable 367.7 Amounts recoverable on contracts 143.9 Other accounts receivable 66.7 Prepayments and accrued income 57.3 --------------- 635.6 --------------- Amounts falling due after more than one year included in amounts recoverable on contracts above are (pound)0.3m and included within other accounts receivable above are (pound)1.0m. 15. ACCOUNTS PAYABLE: AMOUNTS FALLING DUE WITHIN ONE YEAR (pound)m Payments received on account 66.6 Trade accounts payable 189.6 Value added tax 32.2 Other taxation and social security payable 44.9 Capital lease commitments 11.0 Other accounts payable 64.0 Accruals and deferred income 163.4 --------------- 571.7 --------------- 16. ACCOUNTS PAYABLE: AMOUNTS FALLING DUE AFTER MORE THAN ONE YEAR (pound)m Other accruals 49.3 Capital lease commitments 12.2 Other accounts payable 9.9 --------------- 71.4 --------------- 25

Other accruals The balance of other accruals at December 31, 2000 relates principally to accruals for dilapidations on leasehold properties, accruals for onerous contracts and an accrual for a dispute with a customer that has progressed to arbitration. The accrual for dilapidations represents the Group's obligation under certain operating lease agreements to reinstate the property to its former condition at the expiration of the lease term. The accrual for dilapidations is payable within five years. The accruals for onerous contracts and a customer dispute will be payable within eight years and one year, respectively. 17. LONG-TERM DEBT Borrowings are repayable by installments as follows: Bank Capital lease loans commitments Total (pound)m (pound)m (pound)m Within one year 0.3 11.0 11.3 Between one and two years 3.3 3.2 6.5 Between two and three years 0.2 6.9 7.1 Between three and four years -- -- -- Between four and five years -- -- -- After five years -- 2.1 2.1 ------------------------------------------- 3.8 23.2 27.0 ------------------------------------------- Other bank loans are repayable in installments over five years at interest rates ranging from 1.85% to 10%. The amounts owed under capital lease commitments are repayable in installments at interest rates ranging from 2% to 21%. Facilities committed by banks amounted to (pound)130.0m, of which (pound)6.6m was utilized at December 31, 2000. 18. SHAREHOLDERS' EQUITY Treasury Stock The Group established two employee share ownership trusts during the period. On March 17, 2000, the group allotted 1,455,315 of shares to the Sema QUEST at (pound)13.97 per share, representing the deemed market price at this date. The Company established the QUEST during the year to acquire new shares in the Company for the benefit of employees and Directors of the group. On March 17, 2000, the Company provided (pound)20.3m by way of a gift for this purpose. On the same date, the QUEST subscribed at market value for 1,455,315 of the Company's 10p ordinary shares. The shares rank pari passu in all respects with the existing ordinary shares. These shares are being used to satisfy the awards made under the Save As You Earn (SAYE) scheme which have an exercise price of (pound)6.38 per share. The cost of the gift has been transferred by the Company directly to the profit and loss account reserve. The excess of the subscription price over the nominal value of the shares issued, which amounts to (pound)20.2m, has been taken to the share premium account. The shares held by the QUEST at December 31, 2000 have been included in the Group balance sheet, as treasury stock, at a value of (pound)9.3m, which is equivalent to the amounts receivable from employees on exercise of their options. During the year 27,896 shares held by the Sema QUEST were allocated to employees exercising their options under the SAYE scheme. 26

The Sema Group Employee Benefit Trust purchased 465,000 shares in the market at (pound)9.30 per share, using funds contributed by the respective Group employer companies. These shares will be used to satisfy the awards made under the Executive Share Option Scheme. At December 31, 2000, the total number of shares held by Trusts was 1,892,419 of 10p each, of which all shares are under option or rights. The net recoverable amount of these shares has been assumed to be the exercise price of future employee share options. The difference between the purchase price and the exercise price has been written off to reserves. The market value of own shares at December 31, 2000 was (pound)5,563,712 and represents 0.3% of the issued capital of the company. Pursuant to the Trust deeds, the right to receive dividends has been waived until the shares vest unconditionally with the employees. Share options During the year, executive share options in respect of 867,704 ordinary shares of 10p each were exercised at prices ranging between (pound)1.4248 and (pound)4.80. Under the SAYE scheme a total of 32,726 share options and share appreciation rights were exercised at (pound)6.38 for ordinary shares of 10p each to employees leaving the scheme early. As part of the consideration for the acquisition of LHS Inc on July 29, 2000, a total of 131,392,728 ordinary shares at 10p each were issued to LHS Inc shareholders. This represented 2.6 Sema shares for each LHS share held. The market value of Sema shares at the date of acquisition was (pound)10.49 per share. LHS options in respect of 10,094,505 ordinary Sema shares of 10p each were exercised at prices ranging from (pound)0.26 to (pound)4.85. The Company uses the fair value method of accounting in accordance with SFAS No. 123 in determining the cost of benefits arising from employee stock compensation plans. Options granted under the Company's Employee Option Schemes are exercisable at the fair market value of the Company's ordinary shares at the date of grant and are subject to performance criteria, between 3 and 10 years from the date of grant. Options granted since April 1994 may only be exercised where the percentage growth in adjusted earnings per share of the Company during a continuous period of three financial years has exceeded the percentage growth in the UK Retail Price Index during the same period by at least two per cent per annum. Options granted prior to April 1994 are not subject to performance criteria. All shares shown below have been adjusted for the three for one capitalization issue which was approved by shareholders on May 27, 1998. Activity with respect to the share option schemes is as follows: Number of options Weighted average Exercise price (pound) Options outstanding at January 1, 2000 11,686,955 5.01 Options granted 15,568,854 9.54 Options exercised (900,430) 3.55 Options cancelled (1,777,257) 9.30 ------------------------------------------ Options outstanding at December 31, 2000 24,578,122 7.66 As of December 31, 2000 1,564,636 options were exercisable, with a weighted average exercise price of (pound)1.97. 27

For options outstanding at December 31, 2000: Range of exercise prices Number Weighted average Weighted average (pound) outstanding remaining life exercise price (pound) 0.5441-0.9954 226,996 1.85 0.73 1.4248 717,640 5.18 1.42 3.0688 - 4.8 4,729,651 7.66 4.65 6.38 3,607,856 3.33 6.38 6.95 - 7.63 2,277,109 9.21 7.34 9.30 - 9.42 10,631,100 9.51 9.41 10.19 1,826,870 2.75 10.19 11.21 - 13.79 560,900 9.55 11.95 In addition, the Group acquired 7,754,399 options of LHS on July 28, 2000 which are convertible on exercise into 2.6 Sema shares. Activity with respect to these LHS options is as follows: Number of Sema Weighted average shares exercise price per share (pound) LHS options acquired on July 28, 2000 20,161,437 7.64 LHS options exercised (10,094,505) 6.56 --------------------------------------------- LHS options outstanding at December 31, 2000 10,066,932 9.02 Compensation expense for the Company's share option and loan schemes has been determined based upon fair value at the grant date for awards under these plans consistent with the methodology prescribed under SFAS No. 123, "Accounting for Stock-Based Compensation". The Company's net loss includes stock based compensation of (pound)13.9 m for the year ended December 31, 2000. The unearned compensation at the end of the 2000 financial year was (pound)63.7m. The weighted-average grant-date fair value of options granted during 2000 was (pound)3.965. The fair value of the options and loan stock granted were estimated using the Black-Scholes option method with the following assumptions: Assumptions 2000 Dividend yield 0.29% Risk free investment rate 6.0% Expected volatility 44.2% - 71.3% Expected life (1) 4.25 years 19. RELATED PARTY TRANSACTIONS France Telecom, by virtue of its holding in the Company during the year, is considered a related party. The Group provides information technology and related services to France Telecom and certain of its subsidiaries, in particular for outsourcing services by Sema Group Outsourcing SA, and for other services by Sema Group Telecoms SA. The amounts billed during 2000 were (pound)11.3m for outsourcing services and (pound)72.4m for systems integration. The net amount due from France Telecom at the end of 2000 was (pound)20.5m. 28

During the period prior to the acquisition of LHS and pursuant to the acquisition agreement dated March 14, 2000, the Group incurred interest payable of (pound)3.1m on a promissory note payable to LHS of (pound)257.9m. The promissory note was consideration for the exercise of an option to subscribe for 10,386,091 new shares of LHS at a price per share of (pound)24.84, an investment of (pound)258.0m. This represented 14.9 percent of LHS' share capital subsequent to the exercise. The promissory note was denominated in Sterling, matured in one year after the exercise of the option, interest was payable quarterly at the prime rate as reported in The Wall Street Journal, and was secured by the shares of LHS common stock for which it was issued. The promissory note was subsequently cancelled upon the acquisition of LHS on July 29, 2000. In the prior year, Sir Julian Oswald, Chairman of the Board, held a consultancy contract with an Affiliated company which caused him to be treated as a related party for the amounts received under the contract. This contract expired on his appointment as Chairman of the Board on April 14, 1999. The amount payable in 1999 was (pound)11,000 and the balance due to him at the beginning and the end of the year was nil. 20. COMMITMENTS AND CONTINGENCIES The Group has in the ordinary course of business provided or requested banks to provide performance and advance payment guarantees to customers. During the year the group invested (pound)2.0m in Convergence Partners II L.P. The Group is committed to contribute up to $5m ((pound)3.1m), over ten years to the partnership which intends to invest in information technology related companies. The Group invested (pound)0.1m in Portview Communications LP. The Group is committed to contribute up to $1m ((pound)0.7m) over ten years. The Company is involved in a dispute with a third party licensor in respect of licensing rights for a particular item of software. Claims have been issued by the licensor and the Company has issued counter-claims against the licensor. The Company believes it has meritorious defenses to the licensor's claims and reasonable grounds for the assertion of its counterclaims. The Company intends to vigorously defend the claims and prosecute the counterclaims. The matter will probably be heard later this year. It is not possible to quantify, with any real certainty, the amount of any liabilities or assets under these claims and counterclaims. Accordingly, no such assets or liabilities have been reflected in the financial statements. Further details regarding this dispute have not been disclosed as they may be prejudicial to the outcome. LEASE COMMITMENTS The following is a summary, by year, of future gross minimum rental payments for all leases with terms greater than one year: Operating Capital (pound)m (pound)m Fiscal year ending December 31: 2001 38.2 10.5 2002 27.8 5.4 2003 23.5 5.6 2004 18.3 1.3 2005 16.6 1.2 Thereafter 114.0 1.0 --------------------------------- Total minimum lease payments 238.4 25.0 Less amount representing interest (1.8) ---------------- Present value of net minimum lease payments 23.2 Less current maturities (11.0) ---------------- Long-term obligation 12.2 ---------------- The Company enters lease agreements as part of the ordinary course of its business. Capital leases relate primarily to computer equipment rental, whilst operating leases primarily relate to the rental of office space. The average 29

remaining term of these leases is five years or less. The exception is an operating lease on a UK property rental which expires in 2017. 21. SUBSEQUENT EVENTS On February 12, 2001, the Boards of Sema and Schlumberger Investments announced that they had reached agreement on the terms of a recommended cash offer for the entire issued, and to be issued, share capital of Sema. The offer is on the basis of 560p for every Sema share and 1,120p for every Sema ADS. On April 6, 2001, Schlumberger Investments amounted that its offer for the ordinary share capital of Sema plc had been declared unconditional in all respects. The offer remains open for acceptance until further notice, and withdrawal rights of holders of Sema shares have terminated. As a result of acceptances since April 6, 2001, Schlumberger Investments has received valid acceptances of the offer in respect of or otherwise acquired 90% or more in value of the Sema shares. As anticipated in its offer document dated February 21, 2001, Schlumberger Investments will seek to acquire compulsorily the remaining Sema shares pursuant to sections 428 to 430F of the UK Companies Act 1985. The aggregate consideration for the acquisition of 100% of the issued Sema shares is expected to be approximately $5.2 billion in cash (including expenses of the transaction). The purchase price for Sema shares acquired in the offer was determined following arm's length negotiations with Sema's management regarding its recommendation of the offer. Except as described in this paragraph, it is currently expected that the business and operations of Sema will continue to be conducted as they are currently being conducted. Schlumberger will continue to evaluate all aspects of the business, operations, capitalization, corporate and organizational structure, and management of Sema and will take such further actions as it deems appropriate under the circumstances then existing. On March 9, 2001, Sema Global Recovery Services Ltd entered into a 17 1/2 year lease contract on a building in London for use principally in its business continuity activity. A bank guarantee was issued on the same day in favor of the landlord in respect of rental payments in an initial amount of (pound)60m, declining to zero over seven years. The issuing banks are indemnified by Sema plc. 22. FINANCIAL INSTRUMENTS AND RISK MANAGEMENT Overview of Treasury Objectives The Group is involved in the provision of information technology related services that are largely cash generative and financed out of working capital. The Group's outsourcing activity, however, is more capital intensive and can involve investment in substantial amounts of tangible fixed assets that are used as the basis for the provision of services to clients. The principal financing and treasury exposures faced by the Group relate to working capital management, the financing of acquisitions and tangible fixed assets, the ongoing funding structure of subsidiaries, the management of interest rate and currency positions, and the investment of surplus cash. The Group has generally followed a policy of avoiding long-term borrowing. The acquisition of LHS in 2000 was effected by means of a share exchange and over the last ten years the Group has financed all of its other acquisitions out of its own cash resources with the sole exception of one capital increase which raised (pound)99m and which took place in 1996. Written policies and procedures exist for the conduct, control and recording of treasury and foreign exchange transactions. All material new treasury instruments are approved and controlled by Group financial management on a centralised basis and the treasury impact of bids for new business is reviewed in detail as part of the bid and contract approval process prior to the signature of any contract. 30

The principal derivative financial instruments held by the Group are forward foreign exchange contracts relating to the hedging of normal receivables and payables denominated in foreign currency. Due to the nature of the Group's activities which, apart from Telecoms and Major Events, tends to be domestic, the value and the volume of these instruments is not greatly significant relative to the size of the Group's business. It is Group policy that no speculative trading in financial instruments be undertaken. The Group also has financial instruments in the form of short-term debtors and creditors which arise in the normal course of business and are not discounted, securitised or pledged in any way. Short-term debtors and creditors have been excluded from the disclosures which follow, other than the currency risk disclosure. Foreign currency Transactional As referred to above, the Group does hedge a proportion of its transactional exposures by taking out forward foreign exchange contracts to cover the relevant sales and purchase transactions. This is to minimize the effects of movements in international currency markets. At December 31, 2000, of the total known and anticipated net transactional exposures, (pound)48.8m had been hedged. When those contracts are revalued at the relevant forward rate applicable at the year-end, this results in a (pound)1.4m unrealised loss. This was due to a significant proportion of the Group's hedging being in respect of future US Dollar denominated receivables and the relative strengthening of the US Dollar against the Euro during the year. Translational The Group's reporting currency is Sterling and it therefore faces currency exposures on the translation of profits earned in overseas currencies, and of the retranslation of their net assets from year to year. The Group policy is not to hedge its profit or net asset translation exposures as these represent an accounting rather than a cash exposure, and as average exchange rates are used to translate the foreign currency profits, the exchange effect is reduced. The Group considers itself to be hedged through the geographic span of its overseas operations. Between January 1, 1990 and December 31, 1999 the cumulative translational exchange loss was (pound)18.9m. In 2000 this decreased by (pound)1.6m mainly due to the effect of a strong US Dollar on the translation of the Group's US assets. As at the balance sheet date the Group had not entered into any interest rate swaps or any other interest rate hedging instruments. Fixed rate financial liabilities are comprised mainly of finance leases. The floating rate financial liabilities largely comprise bank overdrafts which bear interest at the respective country's market rate, and finance leases and deferred acquisition consideration, both of which bear interest at variable rates. Financial liabilities on which no interest is paid mainly consist of deferred acquisition consideration. The Group's benchmark rates for determining interest rate payments for its floating rate financial liabilities are based on inter-bank lending rates in the relevant country of operation. The above table evidences the Group's policy of not having long term borrowing as only (pound)9.2m of the Group total financial liabilities mature more than two years from the balance sheet date. Other financial liabilities consist solely of deferred acquisition consideration which is reported in the balance sheet, within other creditors in creditors: amounts falling due within one year and creditors: amounts falling due after more than one year. 31

Currency exposure of the Group's total assets by currency The currency exposure (i.e. those transactional exposures that give rise to the net currency gains and losses recognized in the profit and loss account) of the Group's monetary assets/(liabilities) is shown below. Such exposures comprise the monetary assets and monetary liabilities of the Group that are not denominated in the operating (or functional) currency of the operating unit involved. As explained above, it is the Group's policy to hedge a proportion of its exposures to foreign exchange rate fluctuation. The amounts below take into account the effect of this hedging. As at December 31, 2000: Functional currency of Group Net foreign currency monetary assets/(liabilities) ((pound)m) operations STG Euro US SEK Other Sterling -- 9.6 3.8 -- 0.1 Euro (3.3) 0.1 8.0 -- 0.8 US$ 2.7 (2.5) -- -- (0.1) SEK -- 3.1 -- -- -- Other (3.0) 3.4 0.1 -- (3.2) Fair values of financial instruments Set out below is a comparison between book value and fair value of all the Group's financial assets and liabilities: Book Value Fair Value (pound)m (pound)m Primary financial instruments held or issued to finance the Group's operations: Short-term borrowings (40.6) (40.6) Long-term borrowings (26.7) (27.0) Other financial liabilities (24.7) (24.7) Investments 18.8 18.8 Long and short-term marketable debt securities 29.7 29.7 Short-term deposits 13.8 13.8 Cash at bank and in hand 130.6 130.6 Derivative financial instruments held to manage the currency profile: Foreign exchange forward contracts -- (1.4) The fair values of the Group's short-term borrowings, short-term deposits and cash at bank and in hand which, on the whole bear interest at variable rates, are equivalent to their book values. The book values of the investments which are in unquoted companies reflect a directors' valuations and are deemed to be equal to their fair values. The book values of the short term marketable debt securities have been compared to their market values to which, in aggregate, they are equivalent. For finance leases, included in long-term borrowings, the rate implicit in the lease is compared to the market interest rates at December 31, 2000 for the period until maturity of the lease, resulting in a fair value difference of (pound)0.3m. The difference between the fair values and book values of long-term bank borrowings, which are at fixed interest rates, is not material. Other financial liabilities, comprising of deferred acquisition consideration, are subject to market rates of interest or do not bear interest. Their fair values are equivalent to their book values. 32

The estimated fair value of derivatives generally reflects the estimated amounts the Group would receive or pay to terminate the contracts at the reporting date. Hedging During the year ended December 31, 2000, the Group had a loss from hedge instruments of (pound)0.1m included in loss for the period. At December 31, 2000, unrecognized gains and (losses), respectively, are (pound)0.1m and (pound)(0.3)m arising in previous years and (pound)0.4m and (pound)(1.6)m arising between January 1, 2000 and December 31, 2000. Gains and (losses) expected to be included in December 31, 2001 income are (pound)0.1m and (pound)(0.6)m, respectively. Gains and (losses) expected to be included in income for the year ended December 31, 2002 or later are (pound)0.4m and (pound)(1.3)m, respectively. 23. RECENTLY ISSUED ACCOUNTING STANDARDS In 1998, the FSAB issued SFAS No, 133, "Accounting for Derivative Instruments and Hedging Activities", which is effective for the Company's 2001 fiscal year. SFAS No. 133 establishes accounting and reporting standards for derivative instruments, including certain derivative instruments embedded in other contracts (collectively referred to as derivatives), and for hedging activities. It requires that entities recognize all derivatives as either assets or liabilities in the statement of financial position and measure those instruments at fair value. The Company is currently reviewing the likely impact in adopting this Statement on the level of disclosure currently provided in its financial statements. On December 3, 1999, the Securities and Exchange Commission issued Staff Accounting Bulletin No. 101 ("SAB 101"). SAB 101 summarizes certain areas of the Staff's views in applying generally accepted accounting principles to revenue recognition in financial statements. SAB 101, as amended by SAB 101A and SAB 101B, is effective commencing in the final fiscal quarter of the first fiscal year beginning after December 15, 1999. The Company has adopted SAB 101 in these financial statements. The adoption of SAB101 has not had a material impact on results. 33

SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. SCHLUMBERGER N.V. (SCHLUMBERGER LIMITED) By: /s/ Jean-Marc Perraud ----------------------------------------- Jean-Marc Perraud Controller, Chief Accounting Officer Date: June 15, 2001

INDEX TO EXHIBITS Exhibit Consent of Independent Accountants 23

8-K/A Exhibit 23 CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 33-35606; 33-47592; 33-86424; 33-40227; 333-62545; 333-81713; 333-81717; 333-36366; 333-36364) of Schlumberger Limited of our report dated March 20, 2001 (except for Note 21 which is as of April 6, 2001) relating to the financial statements of Sema plc, which appears in the Current Report on Form 8-K/A of Schlumberger Limited dated June 15, 2001. /s/ PricewaterhouseCoopers - ---------------------------------------------- PricewaterhouseCoopers Chartered Accountants and registered Auditors London June 15, 2001