SLBSchlumberger

(Stated in millions) Pretax Charge (Credit) Tax Benefit (Expense) Noncontrolling Interest Net First quarter: Merger & Workforce reductions $ 158 $ 10 $ - $ 148 Other merger and integration $ 25 $ 6 $ 5 $ 14 49 1 4 44 Second quarter: Impairment of equity method investment 69 12 - 57 Workforce reductions 111 17 66 3 - 94 Merger & 63 Other merger and integration 31 5 8 18 Third quarter - Workforce reductions 65 10 - 55 Merger & integration 47 10 7 30 Fourth quarter - Asset impairments 162 23 - 139 Merger & integration 63 6 7 50 Workforce reductions 61 10 - 51 35 4 4 27 Gain on sale of investment (24) Palliser APS project (149) (4) - (145) Third quarter: Amortization of inventory purchase accounting adjustment 66 15 - 51 Acquisition-related professional fees 61 - - (24) 61 Workforce reductions 57 4 - 53 Acquisition-related employee benefits 54 2 - 52 Impairment of equity-method investment 52 4 - 48 Other merger and integration 28 2 4 22 Fourth quarter: Goodwill impairment 210 - 41 169 Workforce reductions 126 14 3 109 Amortization of inventory purchase accounting adjustment 100 23 - 77 Other merger and integration 125 21 12 92 Reversal of valuation allowance relating to deferred tax assets - 92 - (92) $ 541 1,107 $ 87 203 $ 27 68 $ 427 836

Unauthorized access to or modification of, or actions disabling our ability to obtain authorized access to, our customers’ data, other external data, personal data, or our own data, as a result of a cyber incident, attack or exploitation of a security vulnerability, or loss of control of our clients’ operations could result in significant damage to our reputation or disruption of the services we provide to our customers or of our customers’ businesses. In addition, allegations, reports, or concerns regarding vulnerabilities affecting our digital products or services could damage our reputation. This could lead to fewer customers using our digital products and services, which could have a material adverse impact on our financial condition, results of operations, cash flows, and future prospects. In addition, if our systems or third-party products, services, and network systems for protecting against cybersecurity risks prove to be insufficient, we could be adversely affected by, among other things, loss of or damage to our intellectual property, proprietary or confidential information; loss of customer, supplier, or our employee data; breach of personal data; interruption of our business operations; disruption of our customers’ businesses; increased legal and regulatory exposure, including fines and remediation costs; and increased costs required to prevent, respond to, or mitigate cybersecurity attacks. These risks could harm our reputation and our relationships with our employees, our customers, our suppliers, our alliance partners and other third parties, and may result in claims against us.