This presentation contains “forward-looking statements” within the meaning of the federal securities laws, which include any statements that are not historical facts, such as Schlumberger forecasts, or expectations regarding business outlook; growth for Schlumberger as a whole and for each of Oilfield Services and WesternGeco (and for specified products or geographic areas within each segment); oil and natural gas demand and production growth; operating margins; capital expenditures by Schlumberger and the oil and gas industry; the business strategies of Schlumberger customers; and future results of operations. These statements are subject to risk and uncertainties; including but not limited to, the current global economic downturn; changes in exploration and production spending by Schlumberger customers and changes in the level of oil and natural gas exploration and development; general economic and business condition in key regions of the world; the financial condition of our suppliers and customers in light of current global economic conditions, pricing erosion; third-party service costs, operational and project modifications, delays or cancelations; exploitation of technology; seasonal factors and weather-related events; and other risks detailed in our most recent Forms 10-K and 10-Q and other filings that we make with the Securities and Exchange Commission. If one or more of these risks or uncertainties materialize (or the consequences of such a development changes), or should underlying assumptions prove incorrect, actual outcomes may vary materially from those forecasted or expected. Schlumberger disclaims any intention or obligation to update publicly or revise such statements, whether as a result of new information, future events or otherwise.

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3 3

Company Overview

Measurement—The Heart of Schlumberger

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Schlumberger Today

The world’s leading supplier of technology, integrated project management and information solutions to oil and gas E&P

Approximately 105,000 people of over 140 nationalities working in more than 80 countries worldwide

A Netherlands Antilles corporation, listed on the NYSE as a full member, part of the S&P 500

A true multinational corporation in the composition of its workforce, management team and Board of Directors

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Investment and Growth

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2003 2004 2005 2006 2007 2008 2009

Revenue

Total Revenue ($ millions) 10,017 11,480 14,309 19,230 23,279 27,163 22,702

New Technology Revenue ($ millions) 1,838 2,187 2,601 3,805 4,908 5,703 4,331

Investment

Schlumberger Employees (period end) 51,000 52,500 60,000 70,000 80,000 87,000 78,000

Technical Staff Recruited 2,252 2,693 4,019 5,673 5,710 5,094 2,239

Training Days (Engineers & Specialists) 206,100 221,533 258,061 383,734 410,753 373,637 304,751

CAPEX ($ millions) 872 1,216 1,593 2,457 2,931 3,723 2,395

R&E ($ millions) 431 467 506 619 728 819 802

Source: Company Data December 2008Source: Company Data December 2009

WesternGecoWirelineDrilling & MeasurementsTesting ServicesWell ServicesCompletionsArtificial LiftData & Consulting ServicesSchlumberger Information Solutions Integrated Project Management

Land & Marine SeismicSeismic Data ProcessingMulticlient Data LibraryElectromagnetics

27 GeoMarkets - 4 Areas22 R&E Centers

Schlumberger at a Glance

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Approximately 105,000 People

Working in more than 80 Countries

Representing 140 Nationalities

Revenue: $22.70 Billion

Net Income: $3.16 Billion

Total R&E: $802 Million

2009 Financial Highlights

Deep Industry Knowledge

Global Culture

Oilfield Services

Technology Solutions

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Schlumberger People

Investment in People

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More than 20,000 engineers and specialists from 140 countries and 200 universities recruited since 2004

$200 million invested in state-of-the-art training centers

University recruiting continuing

Experienced personnel retirement actively managed

Source: Company Data

Global Reach and Culture

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Europe CIS & Africa, 39.8%

North Amer-ica,

17.3%

Middle East & Asia, 26.5%

Latin Amer-ica,

16.4%

Nationality

Source: Company Data 2009

Europe CIS &

Africa, 35.2%North

Amer-ica;

18.2%

Middle East &

Asia, 25.8%

Latin Amer-ica;

20.8%

Revenue

Schlumberger—Diversity of Management

SLB Management

Ready Now

Ready in the Future

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Geographically Focused Operations

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MEA

NAM

LAM

ECA

Alaska Canada Gulf Coast US Land

North Sea Continental Europe Russia, Caspian North Africa, Libya Nigeria and Gulf of Guinea West and South Africa

MEAECA

NAM

LAM Mexico, Brazil Argentina/Bolivia/Chile Peru/Colombia/Ecuador Venezuela/Trinidad & Tobago

Australasia/Papua New Guinea China/Japan/Korea Brunei/Malaysia/Philippines/Thailand/Vietnam India, Indonesia Saudi Arabia/Kuwait/Bahrain East Mediterranean Gulf, Iran, Qatar

NAM

LAM

ECA

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Industry Outlook

World Primary Energy Demand Grows by 40% by 2030

Source: IEA World Energy Outlook 200914

Mto

e

0

2 000

4 000

6 000

8 000

10 000

12 000

14 000

16 000

18 000

1980 1990 2000 2010 2020 2030

Other renewables

Biomass

Hydro

Nuclear

Gas

Oil

Coal

WEO-2008 total

2000 2008 2020 20300

20

40

60

80

100

120

140

Mbp

dLong-Term Oil Supply—Offshore versus Onshore

15Source: IEA World Energy Outlook 2009, WoodMcKenzie

2000 2005 2010 2015 2020 2025 20300

20000

40000

60000

80000

100000

120000

Kbp

d

NGLsUnconventional oilCrude oil - to be developed or foundCrude oil - currently producing fields

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Annual Production Type of Production

Unspecified

Deepwater

Shallow

Onshore

2007 2015 2020 2025 20300%

20%

40%

60%

80%

100%

0

1

2

3

4

5Pre-2008 fieldsPost-2008 fieldsShare from new fields

Long-Term Gas Supply—Conventional versus Unconventional

16Source: IEA World Energy Outlook 2009

2007 2015 2020 2025 20300

0.5

1

1.5

2

2.5

3

10%

11%

12%

13%

14%

15%

16%Conventional non-associatedConventional asso-ciated

Tcm

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Annual Production Type of Production

9,100

2,600

7,900

1,000

4,900

3,1001,800

2100

600

3100300

1600

1100 700

Growth in the Drilling Services Market

$9.5 B2000

$30.4 B 2010 2015

Directional Drilling LWD Drilling Fluids Mud Logging Rental & Fishing

Drill Bits Drilling Tools

Source: Spears Oilfield Market Report 2010, Company Analysis. 17

If you want to find oil, you have to drill

Evolution of Horizontal Wells in North America

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Q1 2008 Q2 2008 Q3 2008 Q4 2008 Q1 2009 Q2 2009 Q3 2009 Q4 2009 Q1 2010 Q2 2010 Q3 20100

500

1000

1500

2000

2500

3000

0%

10%

20%

30%

40%

50%

60%

Vertical & Directional Horizontal Percentage

Num

ber o

f Wel

ls

Source: Company Analysis

Offshore Rig Fleet—Growth and Availability

• 44 deepwater rigs delivered, 67 under construction and in the market by mid-2013• Some slippage in deliveries has been seen, 76% of new builds have contracts.

Source: Analysis SLB, ODS Petrodata, RIGBASE, AUG 2010

Q1 200

8

Q3 200

8

Q1 200

9

Q3 200

9

Q1 201

0

Q3 201

0

Q1 201

1

Q3 201

1

Q1 201

2

Q3 201

2

Q1 201

3

Q3 201

30

2

4

6

8

10

12Non Contracted Contracted Delivered

Total Fleet (excluding platform rigs) 2000-2013Deepwater Rig Additions 2008-2013

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

2011

2012

2013

300

400

500

600

700

800

900

1000Jackup Semisubmersible Drillship Tender

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Total Fleet (excluding platform rigs) 2000-2013

2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 -500

500

1500

2500

3500

4500

5500

6500

-50

50

150

250

350

450

550

650

International & North America Offshore Rigs

Land and Offshore Rig Counts 2000-2010

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Land

Rig

Cou

nt

Offs

hore

Rig

Cou

nt

International Offshore Rigs

International Land Rigs

International & North America Land Rigs

Source: M-I SWACO rig count

R&E Investment and Hydrocarbon Resources

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Undexplored and underdeveloped areasUnconventional oils and gases

Increased recovery from producing fields Harsh and hostile environments

Outlook Summary

Higher levels of drilling will be necessary to sustain and increase world oil and natural gas production

Industry will move to increasingly complex projects

Continuing investment in People and R&E

Extremely optimistic about the future of Schlumberger and our industry

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