QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Registrant’s telephone number in the United States, including area code, is: (713) 513-2000

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.

	(Stated in millions, except per share amounts)				(Stated in millions, except per share amounts)

	Three Months Ended March 31,				Three Months Ended March 31,
	2017		2016		2018		2017
Revenue
Services	$	4,937	$	5,763	$	5,736	$	4,828
Product sales		1,957		757		2,093		2,066
Total Revenue		6,894		6,520		7,829		6,894
Interest & other income		46		45		42		46
Expenses
Cost of services		4,251		4,795		4,880		4,181
Cost of sales		1,825		665		1,922		1,895
Research & engineering		211		240		172		211
General & administrative		98		110		111		98
Merger & integration		82		-		-		82
Interest		139		133		143		139
Income before taxes		334		622		643		334
Taxes on income		50		99		113		50
Net income		284		523		530		284
Net income attributable to noncontrolling interests		5		22		5		5
Net income attributable to Schlumberger	$	279	$	501	$	525	$	279

Basic earnings per share of Schlumberger	$	0.20	$	0.40	$	0.38	$	0.20

Diluted earnings per share of Schlumberger	$	0.20	$	0.40	$	0.38	$	0.20

Average shares outstanding:
Basic		1,393		1,254		1,385		1,393
Assuming dilution		1,402		1,259		1,394		1,402

(Stated in millions)	(Stated in millions)						(Stated in millions)

	Three Months Ended March 31,						Three Months Ended March 31,
	2017			2016			2018			2017
Net income	$	284		$	523		$	530		$	284
Currency translation adjustments
Unrealized net change arising during the period		45			17			39			45
Marketable securities
Unrealized gain (loss) arising during the period		(4	)		3			19			(4	)
Cash flow hedges
Net loss on cash flow hedges		11			(85	)
Reclassification to net income of net realized loss		-			94
Net gain on cash flow hedges								5			11
Reclassification to net income of net realized gain								(3	)		-
Pension and other postretirement benefit plans
Actuarial loss
Amortization to net income of net actuarial loss		43			45			56			43
Prior service cost
Amortization to net income of net prior service cost		20			25
Amortization to net income of net prior service (credit) cost								(1	)		20
Income taxes on pension and other postretirement benefit plans		(1	)		(7	)		-			(1	)
Comprehensive income		398			615			645			398
Comprehensive income attributable to noncontrolling interests		5			22			5			5
Comprehensive income attributable to Schlumberger	$	393		$	593		$	640		$	393

(Stated in millions)	(Stated in millions)						(Stated in millions)

	Mar. 31,						Mar. 31,
	2017			Dec. 31,			2018			Dec. 31,
	(Unaudited)			2016			(Unaudited)			2017
ASSETS
Current Assets
Cash	$	1,902		$	2,929		$	1,865		$	1,799
Short-term investments		5,451			6,328			2,300			3,290
Receivables less allowance for doubtful accounts (2017 - $356; 2016 - $397)		8,636			9,387
Receivables less allowance for doubtful accounts (2018 - $235; 2017 - $241)								8,472			8,084
Inventories		4,288			4,225			4,174			4,046
Other current assets		1,606			1,058			1,244			1,278
		21,883			23,927			18,055			18,497
Fixed Income Investments, held to maturity		238			238
Investments in Affiliated Companies		1,482			1,243			1,483			1,519
Fixed Assets less accumulated depreciation		12,507			12,821			11,556			11,576
Multiclient Seismic Data		1,089			1,073			707			727
Goodwill		25,045			24,990			25,120			25,118
Intangible Assets		9,743			9,855			9,217			9,354
Other Assets		4,188			3,809			5,340			5,196
	$	76,175		$	77,956		$	71,478		$	71,987
LIABILITIES AND EQUITY
Current Liabilities
Accounts payable and accrued liabilities	$	9,408		$	10,016		$	9,598		$	10,036
Estimated liability for taxes on income		1,215			1,188			1,311			1,223
Short-term borrowings and current portion of long-term debt		2,449			3,153			4,586			3,324
Dividends payable		704			702			700			699
		13,776			15,059			16,195			15,282
Long-term Debt		16,538			16,463			13,526			14,875
Postretirement Benefits		1,457			1,495			1,027			1,082
Deferred Taxes		1,908			1,880			1,579			1,650
Other Liabilities		1,442			1,530			1,825			1,837
		35,121			36,427			34,152			34,726
Equity
Common stock		12,780			12,801			12,998			12,975
Treasury stock		(3,697	)		(3,550	)		(3,937	)		(4,049	)
Retained earnings		36,052			36,470			32,022			32,190
Accumulated other comprehensive loss		(4,529	)		(4,643	)		(4,159	)		(4,274	)
Schlumberger stockholders' equity		40,606			41,078			36,924			36,842
Noncontrolling interests		448			451			402			419
		41,054			41,529			37,326			37,261
	$	76,175		$	77,956		$	71,478		$	71,987

(Stated in millions)	(Stated in millions)						(Stated in millions)

	Three Months Ended March 31,						Three Months Ended March 31,
	2017			2016			2018			2017
Cash flows from operating activities:
Net income	$	284		$	523		$	530		$	284
Adjustments to reconcile net income to cash provided by operating activities:
Merger & integration charges		82			-			-			82
Depreciation and amortization ⁽¹⁾		989			967			874			989
Pension and other postretirement benefits expense		37			60			18			37
Stock-based compensation expense		88			61			90			88
Pension and other postretirement benefits funding		(29	)		(45	)		(39	)		(29	)
Earnings of equity method investments, less dividends received		(10	)		(25	)		(5	)		(10	)
Change in assets and liabilities: ⁽²⁾
Decrease in receivables		58			414
(Increase) decrease in inventories		(33	)		125
(Increase) decrease in other current assets		(115	)		85
(Increase) decrease in other assets		(56	)		5
(Increase) decrease in receivables								(152	)		58
Increase in inventories								(81	)		(33	)
Increase in other current assets								(48	)		(115	)
Increase in other assets								(70	)		(56	)
Decrease in accounts payable and accrued liabilities		(670	)		(983	)		(600	)		(670	)
Decrease in estimated liability for taxes on income		(31	)		(104	)
(Decrease) increase in other liabilities		(28	)		2
Increase (decrease) in estimated liability for taxes on income								45			(31	)
Decrease in other liabilities								(7	)		(28	)
Other		90			125			13			90
NET CASH PROVIDED BY OPERATING ACTIVITIES		656			1,210			568			656
Cash flows from investing activities:
Capital expenditures		(381	)		(549	)		(454	)		(381	)
SPM investments		(144	)		(597	)		(240	)		(144	)
Multiclient seismic data costs capitalized		(116	)		(167	)		(26	)		(116	)
Business acquisitions and investments, net of cash acquired		(273	)		(81	)		(13	)		(273	)
Sale (purchase) of investments, net		883			(2,093	)
Sale of investments, net								980			883
Other		(24	)		(26	)		35			(24	)
NET CASH USED IN INVESTING ACTIVITIES		(55	)		(3,513	)
NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES								282			(55	)
Cash flows from financing activities:
Dividends paid		(696	)		(629	)		(692	)		(696	)
Proceeds from employee stock purchase plan		96			116			107			96
Proceeds from exercise of stock options		39			47			20			39
Stock repurchase program		(372	)		(475	)		(97	)		(372	)
Proceeds from issuance of long-term debt		334			3,542			12			334
Repayment of long-term debt		(1	)		(500	)		(51	)		(1	)
Net decrease in short-term borrowings		(1,015	)		(561	)		(105	)		(1,015	)
Other		(22	)		47			19			(22	)
NET CASH (USED IN) PROVIDED BY FINANCING ACTIVITIES		(1,637	)		1,587
Net decrease in cash before translation effect		(1,036	)		(716	)
NET CASH USED IN FINANCING ACTIVITIES								(787	)		(1,637	)
Net increase (decrease) in cash before translation effect								63			(1,036	)
Translation effect on cash		9			3			3			9
Cash, beginning of period		2,929			2,793			1,799			2,929
Cash, end of period	$	1,902		$	2,080		$	1,865		$	1,902

⁽¹⁾ Includes depreciation of property, plant and equipment and amortization of intangible assets, multiclient seismic data costs and SPM investments.

	(Stated in millions)																		(Stated in millions)

										Accumulated																		Accumulated
										Other																		Other
	Common Stock						Retained			Comprehensive			Noncontrolling						Common Stock						Retained			Comprehensive			Noncontrolling
January 1, 2017 – March 31, 2017	Issued			In Treasury			Earnings			Loss			Interests			Total
Balance, January 1, 2017	$	12,801		$	(3,550	)	$	36,470		$	(4,643	)	$	451		$	41,529
January 1, 2018 – March 31, 2018																			Issued			In Treasury			Earnings			Loss			Interests			Total
Balance, January 1, 2018																			$	12,975		$	(4,049	)	$	32,190		$	(4,274	)	$	419		$	37,261
Net income								279						5			284									525						5			530
Currency translation adjustments											45						45												39			5			44
Changes in unrealized gain on marketable securities											(4	)					(4	)											19						19
Changes in fair value of cash flow hedges											11						11												2						2
Pension and other postretirement benefit plans											62						62												55						55
Shares sold to optionees, less shares exchanged		(29	)		68												39			(20	)		40												20
Vesting of restricted stock		(49	)		49												-			(29	)		29												-
Shares issued under employee stock purchase plan		(12	)		108												96			(33	)		140												107
Stock repurchase program					(372	)											(372	)					(97	)											(97	)
Stock-based compensation expense		88															88			90															90
Dividends declared ($0.50 per share)								(697	)								(697	)								(693	)								(693	)
Other		(19	)											(8	)		(27	)		15												(27	)		(12	)
Balance, March 31, 2017	$	12,780		$	(3,697	)	$	36,052		$	(4,529	)	$	448		$	41,054
Balance, March 31, 2018																			$	12,998		$	(3,937	)	$	32,022		$	(4,159	)	$	402		$	37,326

	(Stated in millions)																	(Stated in millions)

										Accumulated																	Accumulated
										Other																	Other
	Common Stock						Retained			Comprehensive			Noncontrolling					Common Stock						Retained			Comprehensive			Noncontrolling
January 1, 2016 – March 31, 2016	Issued			In Treasury			Earnings			Loss			Interests		Total
Balance, January 1, 2016	$	12,693		$	(13,372	)	$	40,870		$	(4,558	)	$	272	$	35,905
January 1, 2017 – March 31, 2017																		Issued			In Treasury			Earnings			Loss			Interests			Total
Balance, January 1, 2017																		$	12,801		$	(3,550	)	$	36,470		$	(4,643	)	$	451		$	41,529
Net income								501						22		523									279						5			284
Currency translation adjustments											17					17												45						45
Changes in unrealized gain on marketable securities											3					3												(4	)					(4	)
Changes in fair value of cash flow hedges											9			��		9												11						11
Pension and other postretirement benefit plans											63					63												62						62
Shares sold to optionees, less shares exchanged		(17	)		64											47			(29	)		68												39
Vesting of restricted stock		(28	)		28											-			(49	)		49												-
Shares issued under employee stock purchase plan		(19	)		135											116			(12	)		108												96
Stock repurchase program					(475	)										(475	)					(372	)											(372	)
Stock-based compensation expense		61														61			88															88
Dividends declared ($0.50 per share)								(626	)							(626	)								(697	)								(697	)
Other		10												9		19			(19	)											(8	)		(27	)
Balance, March 31, 2016	$	12,700		$	(13,620	)	$	40,745		$	(4,466	)	$	303	$	35,662
Balance, March 31, 2017																		$	12,780		$	(3,697	)	$	36,052		$	(4,529	)	$	448		$	41,054

(Stated in millions)

Shares

Issued

In Treasury

Outstanding

Balance, January 1, 2017

1,434

(43
)

1,391

Shares sold to optionees, less shares exchanged

-

1

1

Vesting of restricted stock

-

1

1

Shares issued under employee stock purchase plan

-

1

1

Stock repurchase program

-

(5
)

(5
)
Balance, March 31, 2017

1,434

(45
)

1,389

			(Stated in millions)

						Shares
	Issued		In Treasury			Outstanding
Balance, January 1, 2018		1,434		(50	)		1,384
Shares issued under employee stock purchase plan		-		2			2
Stock repurchase program		-		(1	)		(1	)
Balance, March 31, 2018		1,434		(49	)		1,385

The accompanying unaudited consolidated financial statements of Schlumberger Limited and its subsidiaries (Schlumberger) have been prepared in accordance with generally accepted accounting principles in the United States of America for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of Schlumberger management, all adjustments considered necessary for a fair statement have been included in the accompanying unaudited financial statements. All intercompany transactions and balances have been eliminated in consolidation. Operating results for the three-month period ended March 31, ~~2017~~2018 are not necessarily indicative of the results that may be expected for the full year ending December 31, ~~2017.~~2018. The December 31, ~~2016~~2017 balance sheet information has been derived from the Schlumberger ~~2016~~2017 audited financial statements. For further information, refer to the Consolidated Financial Statements and notes thereto included in the Schlumberger Annual Report on Form 10-K for the year ended December 31, ~~2016,~~2017, filed with the Securities and Exchange Commission on January ~~25, 2017.~~24, 2018.

In May 2014, the Financial Accounting Standards Board ~~(FASB)~~(“FASB”) issued Accounting Standards Update ~~(ASU)~~(“ASU”) 2014-09, Revenue from Contracts with Customers. This ASU ~~amends~~amended the existing accounting standards for revenue recognition and ~~is based on~~requires companies to recognize revenue when control of the ~~principle that revenue should be recognized to depict the transfer of~~promised goods or services is transferred to a customer at an amount that reflects the consideration a company expects to receive in exchange for those goods or services. Schlumberger ~~will adopt~~adopted this ASU on January 1, 2018 using the modified retrospective transition method applied to those contracts which were not completed as of January 1, 2018. ~~Schlumberger does~~Prior period amounts have not ~~expect the~~been adjusted and continue to be reflected in accordance with Schlumberger’s historical accounting. The adoption of this ASU todid not have a material impact on Schlumberger’s Consolidated Financial Statements.

Schlumberger recognizes revenue upon the transfer of control of promised products or services to customers at an amount that reflects the consideration it expects to receive in exchange for these products or services. The vast majority of Schlumberger’s services and product offerings are short-term in nature. The time between invoicing and when payment is due under these arrangements is generally 30 to 60 days.

Revenue is occasionally generated from contractual arrangements that include multiple performance obligations. Revenue from these arrangements is allocated to each performance obligation based on its ~~consolidated financial statements.~~ relative standalone selling price. Standalone selling prices are generally based on the prices charged to customers or using expected costs plus margin.

Revenue is recognized for certain long-term construction-type contracts over time. These contracts involve significant design and engineering efforts in order to satisfy custom designs for customer-specific applications. Revenue is recognized as work progresses on each contract. Progress is measured by the ratio of actual costs incurred to date on the project in relation to total estimated project costs. The estimate of total project costs has a significant impact on both the amount of revenue recognized as well as the related profit on a project. Revenue and profits on contracts can also be significantly affected by change orders and claims. Due to the nature of these projects, adjustments to estimates of contract revenue and total contract costs may be required as work progresses. Progress billings are generally issued upon completion of certain phases of work as stipulated in the contract. Any expected losses on a project are recorded in full in the period in which they became probable.

Revenue in excess of billings related to contracts where revenue is recognized over time was $0.3 billion at both March 31, 2018 and December 31, 2017. Such amounts are included within Receivables less allowance for doubtful accounts in the Consolidated Balance Sheet.

Due to the nature of its business Schlumberger does not have significant backlog. Total backlog was $2.8 billion at March 31, 2018, of which approximately 50% is expected to be recognized as revenue over the next 12 months.

Billings and cash collections in excess of revenue was $0.9 billion at March 31, 2018 and $0.8 billion at December 31, 2017. Such amounts are included within Accounts payable and accrued liabilities in the Consolidated Balance Sheet.

In February 2016, the FASB issued ASU No. 2016-02, Leases. This ASU requires lessees to recognize a right of use asset and lease liability on the balance sheet for all leases, with the exception of short-term leases. This ASU is effective for Schlumberger ~~will adopt this ASU~~ on

January 1, ~~2019.~~2019, with early adoption permitted. Based on its current lease portfolio, Schlumberger estimates that the adoption of this ASU will result in approximately $1.3 billion of additional assets and liabilities being reflected on its Consolidated Balance Sheet.

In connection with Schlumberger’s acquisition of Cameron ~~(See Note 4 –~~ ~~Acquisition of Cameron~~International Corporation (“Cameron”), Schlumberger recorded $82 million of ~~pretax~~ charges ~~($68 million after-tax) consisting~~during the first quarter of 2017 relating to employee benefits, facility ~~consolidation~~closures and other merger and integration-related ~~costs during the first quarter of 2017. This charge is~~costs. These charges are classified in Merger & integration in the Consolidated Statement of Income.

~~There were no charges or credits~~On December 22, 2017, the US enacted the Tax Cuts and Jobs Act (the “Act”). The Act, which is also commonly referred to as “US tax reform”, significantly changes US corporate income tax laws by, among other things, reducing the US corporate income tax rate to 21% starting in 2018 and creating a territorial tax system with a one-time mandatory tax on previously deferred foreign earnings of US subsidiaries. As a result, Schlumberger recorded a net charge of $76 million during the ~~first~~fourth quarter of ~~2016.~~2017. This amount consisted of two components: (i) a $410 million charge relating to the one-time mandatory tax on previously deferred earnings of certain non-US subsidiaries that are owned either wholly or partially by a US subsidiary of Schlumberger, and (ii) a $334 million credit resulting from the remeasurement of Schlumberger’s net deferred tax liabilities in the US based on the new lower corporate income tax rate.

Although the $76 million net charge represents a reasonable estimate of the impact of the income tax effects of the Act on Schlumberger’s Consolidated Financial Statements as of December 31, 2017, it should be considered provisional. Once Schlumberger finalizes certain tax positions when it files its 2017 US tax return, it will be able to conclude whether any further adjustments are required. Any adjustments to these provisional amounts will be reported as a component of Taxes on income in the reporting period in which any such adjustments are determined, which will be no later than the fourth quarter of 2018.

The following is a reconciliation from basic earnings per share of Schlumberger to diluted earnings per share of Schlumberger:

(Stated in millions, except per share amounts)	(Stated in millions, except per share amounts)												(Stated in millions, except per share amounts)

	2017						2016						2018						2017
	Schlumberger Net Income		Average Shares Outstanding		Earnings per Share		Schlumberger Net Income		Average Shares Outstanding		Earnings per Share		Schlumberger Net Income		Average Shares Outstanding		Earnings per Share		Schlumberger Net Income		Average Shares Outstanding		Earnings per Share
First Quarter
Basic	$	279		1,393	$	0.20	$	501		1,254	$	0.40	$	525		1,385	$	0.38	$	279		1,393	$	0.20
Assumed exercise of stock options		-		4				-		1				-		1				-		4
Unvested restricted stock		-		5				-		4				-		8				-		5
Diluted	$	279		1,402	$	0.20	$	501		1,259	$	0.40	$	525		1,394	$	0.38	$	279		1,402	$	0.20

The number of outstanding options to purchase shares of Schlumberger common stock that were not included in the computation of diluted earnings per share, because to do so would have had an antidilutive effect, was as follows:

(Stated in millions)	(Stated in millions)				(Stated in millions)

	2017		2016		2018		2017
First Quarter		23		32		39		23

On April 1, 2016, Schlumberger acquired all of the outstanding shares of Cameron, a leading provider of flow equipment products, systems and services to the oil and gas industry worldwide. Schlumberger issued approximately 138 million shares of its common stock, which were valued at $9.9 billion at the time of closing, and paid cash of $2.8 billion. Prior to being acquired by Schlumberger, Cameron reported revenue of approximately $1.6 billion during the first quarter of 2016.

A summary of inventories, which are stated at the lower of average cost or ~~market,~~net realizable value, follows:

(Stated in millions)	(Stated in millions)				(Stated in millions)

	Mar. 31,		Dec. 31,		Mar. 31,		Dec. 31,
	2017		2016		2018		2017
Raw materials & field materials	$	1,633	$	1,720	$	1,910	$	1,846
Work in progress		597		610		556		503
Finished goods		2,058		1,895		1,708		1,697
	$	4,288	$	4,225	$	4,174	$	4,046

(Stated in millions)	(Stated in millions)				(Stated in millions)

	Mar. 31,		Dec. 31,		Mar. 31,		Dec. 31,
	2017		2016		2018		2017
Property, plant & equipment	$	39,857	$	40,008	$	38,104	$	37,813
Less: Accumulated depreciation		27,350		27,187		26,548		26,237
	$	12,507	$	12,821	$	11,556	$	11,576

Depreciation expense relating to fixed assets was $523 million and $613 million ~~and $682 million~~ in ~~the~~ first quarter of ~~2017~~2018 and ~~2016,~~2017, respectively.

The change in the carrying amount of multiclient seismic data for the three months ended March 31, ~~2017~~2018 was as follows:

(Stated in millions)	(Stated in millions)			(Stated in millions)

Balance at December 31, 2016	$	1,073
Balance at December 31, 2017				$	727
Capitalized in period		116			26
Charged to expense		(100	)		(46	)
Balance at March 31, 2017	$	1,089
Balance at March 31, 2018				$	707

The gross book value, accumulated amortization and net book value of intangible assets were as follows:

	(Stated in millions)												(Stated in millions)

	Mar. 31, 2017						Dec. 31, 2016						Mar. 31, 2018						Dec. 31, 2017
	Gross		Accumulated		Net Book		Gross		Accumulated		Net Book		Gross		Accumulated		Net Book		Gross		Accumulated		Net Book
	Book Value		Amortization		Value		Book Value		Amortization		Value		Book Value		Amortization		Value		Book Value		Amortization		Value
Customer relationships	$	4,960	$	927	$	4,033	$	4,938	$	865	$	4,073	$	4,833	$	1,079	$	3,754	$	4,832	$	1,020	$	3,812
Technology/technical know-how		3,655		896		2,759		3,655		835		2,820		3,619		1,127		2,492		3,634		1,078		2,556
Tradenames		2,847		484		2,363		2,847		458		2,389		2,806		558		2,248		2,806		533		2,273
Other		1,166		578		588		1,122		549		573		1,326		603		723		1,295		582		713
	$	12,628	$	2,885	$	9,743	$	12,562	$	2,707	$	9,855	$	12,584	$	3,367	$	9,217	$	12,567	$	3,213	$	9,354

Amortization expense charged to income was ~~$169~~$165 million during the first quarter of ~~2017~~2018 and ~~$89~~$169 million during the ~~first~~fist quarter of ~~2016.~~2017.

Based on the net book value of intangible assets at March 31, ~~2017,~~2018, amortization charged to income for the subsequent five years is estimated to be: remaining three quarters of ~~2017—$526 million;~~ 2018—$~~668~~519 million; 2019—$~~627~~672 million; 2020—$~~599~~640 million; 2021—$~~576~~617 million; 2022—$607 million; and ~~2022—~~2023—$~~571~~594 million.

(Stated in millions)	(Stated in millions)				(Stated in millions)

	Mar. 31,		Dec. 31,		Mar. 31,		Dec. 31,
	2017		2016		2018		2017
4.00% Senior Notes due 2025	$	1,740	$	1,740	$	1,742	$	1,741
3.30% Senior Notes due 2021		1,594		1,594		1,595		1,595
3.00% Senior Notes due 2020		1,591		1,591		1,594		1,593
3.65% Senior Notes due 2023		1,491		1,491		1,492		1,492
2.35% Senior Notes due 2018		1,297		1,297
4.20% Senior Notes due 2021		1,100		1,100		1,100		1,100
2.40% Senior Notes due 2022		996		996		997		996
3.63% Senior Notes due 2022		845		845		846		846
0.63% Guaranteed Notes due 2019		645		622
1.50% Guaranteed Notes due 2019		551		536
6.38% Notes due 2018		294		297
2.65% Senior Notes due 2022						598		598
2.20% Senior Notes due 2020						498		498
7.00% Notes due 2038		214		214		212		212
4.50% Notes due 2021		137		137		134		135
5.95% Notes due 2041		116		116		115		115
3.60% Notes due 2022		110		110		109		110
5.13% Notes due 2043		99		99		99		99
4.00% Notes due 2023		82		83		82		82
3.70% Notes due 2024		56		56		56		56
0.63% Guaranteed Notes due 2019						-		712
1.50% Guaranteed Notes due 2019						-		603
Commercial paper borrowings		2,503		2,421		1,700		1,694
Other		1,077		1,118		557		598
	$	16,538	$	16,463	$	13,526	$	14,875

The estimated fair value of Schlumberger’s Long-term Debt, based on quoted market prices at March 31, 2018 and December 31, 2017 was ~~$16.8~~$13.6 billion and $15.2 billion, respectively.

Borrowings under Schlumberger’s commercial paper programs at both March 31, ~~2017~~2018 and December 31, ~~2016.~~

~~Borrowings under the commercial paper program at March 31,~~ 2017 were ~~$2.9~~$3.0 billion, of which ~~$2.5~~$1.3 billion was classified ~~within~~ ~~Long-term Debt~~ ~~and $0.4 billion was classified within~~in Short-term borrowings and current portion of long-term debt in the

Consolidated Balance Sheet. ~~At December 31, 2016, borrowings under the commercial paper program were $2.6 billion, of which $2.4 billion was classified within~~ ~~Long-term debt~~ ~~and $0.2 billion was classified in~~ ~~Short-term borrowings and current portion of long-term debt~~ ~~in the~~ ~~Consolidated Balance Sheet~~.

Schlumberger is exposed to market risks related to fluctuations in foreign currency exchange rates and interest rates. To mitigate these risks, Schlumberger utilizes derivative instruments. Schlumberger does not enter into derivative transactions for speculative purposes.

Schlumberger is subject to interest rate risk on its debt and its investment portfolio. Schlumberger maintains an interest rate risk management strategy that uses a mix of variable and fixed rate debt combined with its investment portfolio, and occasionally interest rate swaps, to mitigate the exposure to changes in interest rates.

During 2013, Schlumberger entered into a ~~cross currency~~cross-currency swap for a notional amount of €0.5 billion in order to hedge changes in the fair value of Schlumberger’s €0.5 billion 1.50% Guaranteed Notes due 2019. Under the terms of this swap, Schlumberger will receive

interest at a fixed rate of 1.50% on the euro notional amount and pay interest at a floating rate of three-month LIBOR plus approximately 64 basis points on the US dollar notional amount.

This ~~cross currency~~cross-currency swap is designated as a fair value hedge of the underlying ~~debt. This derivative instrument~~debt and is marked to market, with gains and losses recognized ~~currently~~immediately in income to largely offset the ~~respective gains and losses recognized~~effects on changes in the fair value of the hedged debt.

During 2017, a Canadian dollar functional currency subsidiary of Schlumberger issued $1.1 billion of US dollar denominated debt. Schlumberger entered into cross-currency swaps for an aggregate notional amount of $1.1 billion in order to hedge changes in the fair value of its $0.5 billion 2.20% Senior Notes due 2020 and its $0.6 billion 2.65% Senior Notes due 2022. These cross-currency swaps effectively convert the US dollar notes to Canadian dollar denominated debt with fixed annual interest rates of 1.97% and 2.52%, respectively.

These cross-currency swaps are designated as cash flow hedges. The changes in the fair values of the hedges are recorded on the Consolidated Balance Sheet and in Accumulated Other Comprehensive Loss. Amounts recorded in Accumulated Other Comprehensive Loss are reclassified to earnings in the same periods that the underlying hedged item affects net income.

At March 31, ~~2017,~~2018, Schlumberger had fixed rate debt ~~of $14.2~~aggregating $13.6 billion and variable rate debt ~~of $4.8~~aggregating $4.5 billion, after taking into account the effect of ~~the swap.~~interest rate swaps.

Short-term investments ~~and~~ ~~Fixed income investments~~, ~~held to maturity~~ ~~totaled $5.7~~were $2.3 billion at March 31, ~~2017.~~2018. The carrying value of these investments approximated fair ~~value, which was estimated using quoted market prices for those or similar investments.~~value.

As a multinational company, Schlumberger conducts its business in over 85 countries. Schlumberger’s functional currency is primarily the US dollar. However, outside the United States, a significant portion of Schlumberger’s expenses is incurred in foreign currencies. Therefore, when the US dollar weakens (strengthens) in relation to the foreign currencies of the countries in which Schlumberger conducts business, the US ~~dollar–reported~~dollar-reported expenses will increase (decrease).

Schlumberger is exposed to risks on future cash flows to the extent that the local currency is not the functional currency and expenses denominated in local currency are not equal to revenues denominated in local currency. Schlumberger is also exposed to risks on future cash flows relating to certain of its fixed rate debt ~~that is~~ denominated in currencies other than the functional currency. Schlumberger uses foreign currency forward contracts to provide a hedge against a portion of these cash flow risks. These contracts are accounted for as cash flow hedges, with the ~~effective portion of~~ changes in the fair value of the hedge recorded on the Consolidated Balance Sheet and in Accumulated Other Comprehensive Loss. Amounts recorded in Accumulated Other Comprehensive Loss are reclassified into earnings in the same period or periods that the hedged item is recognized in earnings. ~~The ineffective portion of changes in the fair value of hedging instruments, if any, is recorded directly to earnings.~~

At March 31, ~~2017,~~2018, Schlumberger recognized a cumulative net ~~loss of $8~~$5 million gain in Accumulated other comprehensive loss relating to revaluation of foreign currency forward contracts ~~and foreign currency options~~ designated as cash flow hedges, the majority of which is expected to be reclassified into earnings within the next 12 months.

Schlumberger is exposed to changes in the fair value of assets and liabilities that are denominated in currencies other than the functional currency. While Schlumberger uses foreign currency forward contracts and foreign currency options to economically hedge this exposure as it relates to certain currencies, these contracts are not designated as hedges for accounting purposes. Instead, the fair value of the contracts is recorded on the ~~Consolidated Balance Sheet,~~ ~~and changes in the fair value are recognized in the~~ ~~Consolidated Statement of Income~~ ~~as are changes in fair value of the hedged item.~~

At March 31, ~~2017,~~2018, contracts were outstanding for the US dollar equivalent of ~~$3.8~~$5.0 billion in various foreign currencies, of which ~~$0.7~~$1.8 billion ~~related~~relates to hedges of debt denominated in currencies other than the functional currency.

(Stated in millions)

Fair Value of Derivatives

Consolidated Balance Sheet Classification

Mar. 31,

Dec. 31,

2017

2016

Derivative Assets

Derivatives designated as hedges:

Foreign exchange contracts
$
2

$
1

Other current assets

Derivatives not designated as hedges:

Foreign exchange contracts
$
35

$
42

Other current assets

$
37

$
43

Derivative Liabilities

Derivatives designated as hedges:

Foreign exchange contracts
$
7

$
18

Accounts payable and accrued liabilities
Cross currency swap

37

49

Other Liabilities

$
44

$
67

Derivatives not designated as hedges:

Foreign exchange contracts
$
21

$
59

Accounts payable and accrued liabilities

$
65

$
126

~~The fair value of all outstanding derivatives was determined using a model with inputs that are observable in the market or that can be derived from, or corroborated by, observable data.~~

The effect of derivative instruments designated as fair value and cash flow hedges, and those not designated as hedges, on the Consolidated Statement of Income was as follows:

	(Stated in millions)						(Stated in millions)

	Gain (Loss) Recognized in Income						Gain Recognized in Income
	First Quarter						First Quarter
	2017		2016			Consolidated Statement of Income Classification	2018		2017		Consolidated Statement of Income Classification
Derivatives designated as fair value hedges:
Cross currency swap	$	18	$	10		Interest	$	27	$	18	Interest expense

Derivatives designated as cash flow hedges:
Foreign exchange contracts							$	4	$	-	Cost of services/sales
Cross currency swap								19		-	Interest expense
							$	23	$	-
Derivatives not designated as hedges:
Foreign exchange contracts	$	6	$	(81	)	Cost of services/sales	$	28	$	6	Cost of services/sales

Schlumberger and its subsidiaries are party to various legal proceedings from time to time. A liability is accrued when a loss is both probable and can be reasonably estimated. Management believes that the probability of a material loss with respect to any currently pending legal proceeding is remote. However, litigation is inherently uncertain and it is not possible to predict the ultimate disposition of any of these proceedings.

				(Stated in millions)												(Stated in millions)

	First Quarter 2017						First Quarter 2016						First Quarter 2018						First Quarter 2017
				Income						Income						Income						Income
				Before						Before						Before						Before
	Revenue			Taxes			Revenue			Taxes			Revenue			Taxes			Revenue			Taxes
Reservoir Characterization	$	1,618		$	281		$	1,719		$	334		$	1,556		$	307		$	1,618		$	281
Drilling		1,985			229			2,493			371			2,126			293			1,985			229
Production		2,187			110			2,376			206			2,959			216			2,187			110
Cameron		1,229			162			-			-			1,310			166			1,229			162
Eliminations & other		(125	)		(25	)		(68	)		(10	)		(122	)		(8	)		(125	)		(25	)
Pretax operating income					757						901						974						757
Corporate & other ⁽¹⁾					(239	)					(172	)					(225	)					(239	)
Interest income ⁽²⁾					24						13						25						24
Interest expense ⁽³⁾					(126	)					(120	)					(131	)					(126	)
Charges and credits ⁽⁴⁾					(82	)					-						-						(82	)
	$	6,894		$	334		$	6,520		$	622		$	7,829		$	643		$	6,894		$	334

⁽¹⁾ Comprised principally of certain corporate expenses not allocated to the segments, stock-based compensation costs, amortization expense associated with certain intangible assets, certain centrally managed initiatives and other nonoperating items. ~~The first quarter of 2017 includes $63 million of intangible asset amortization expense resulting from the April 2016 acquisition of Cameron.~~

⁽²⁾⁽²⁾ Interest income excludes amounts which are included in the segments’ income ($53 million in ~~2017; $6~~2018; $5 million in ~~2016)~~2017).

⁽³⁾Interest expense excludes amounts which are included in the segments’ income ($1312 million in ~~2017;~~2018; $13 million in ~~2016)~~2017).

~~Certain prior period items have been reclassified to conform to the current period presentation.~~

~~13.~~North America and International revenue disaggregated by Group was as follows:

							(Stated in millions)

	First Quarter 2018
	North						Eliminations
	America			International			& other			Total
Reservoir Characterization	$	222		$	1,197		$	137		$	1,556
Drilling		564			1,513			49			2,126
Production		1,500			1,458			1			2,959
Cameron		550			736			24			1,310
Other		(1	)		(21	)		(100	)		(122	)
	$	2,835		$	4,883		$	111		$	7,829


	First Quarter 2017
	North						Eliminations
	America			International			& other			Total
Reservoir Characterization	$	231		$	1,267		$	120		$	1,618
Drilling		455			1,468			62			1,985
Production		739			1,451			(3	)		2,187
Cameron		444			792			(7	)		1,229
Other		2			(56	)		(71	)		(125	)
	$	1,871		$	4,922		$	101		$	6,894

Net pension cost for the Schlumberger pension plans included the following components:

The net periodic benefit credit for the Schlumberger US postretirement medical plan included the following components:

(Stated in millions)	(Stated in millions)						(Stated in millions)

	First Quarter						First Quarter
	2017			2016			2018			2017
Service cost	$	8		$	8		$	8		$	8
Interest cost		11			12			11			11
Expected return on plan assets		(15	)		(14	)		(15	)		(15	)
Amortization of prior service credit		(7	)		(8	)		(7	)		(7	)
	$	(3	)	$	(2	)	$	(3	)	$	(3	)

(Stated in millions)

Unrealized

Pension and

Currency

Gain on

Other

Translation

Marketable

Cash Flow

Postretirement

Adjustments

Securities

Hedges

Benefit Plans

Total

Balance, January 1, 2017
$
(2,136
)

$
21

$
(19
)

$
(2,509
)

$
(4,643
)
Other comprehensive gain (loss) before reclassifications

45

(4
)

11

-

52

Amounts reclassified from accumulated other comprehensive loss

-

-

-

63

63

Income taxes

-

-

-

(1
)

(1
)
Net other comprehensive (loss) income

45

(4
)

11

62

114

Balance, March 31, 2017
$
(2,091
)

$
17

$
(8
)

$
(2,447
)

$
(4,529
)

(Stated in millions)

Unrealized

Pension and

Currency

Gain on

Other

Translation

Marketable

Cash Flow

Postretirement

Adjustments

Securities

Hedges

Benefit Plans

Total

Balance, January 1, 2016
$
(2,053
)

$
-

$
(39
)

$
(2,466
)

$
(4,558
)
Other comprehensive gain (loss) before reclassifications

17

3

(85
)

-

(65
)
Amounts reclassified from accumulated other comprehensive loss

-

-

94

70

164

Income taxes

-

-

-

(7
)

(7
)
Net other comprehensive income

17

3

9

63

92

Balance, March 31, 2016
$
(2,036
)

$
3

$
(30
)

$
(2,403
)

$
(4,466
)

	(Stated in millions)

									Pension and
	Currency								Other
	Translation			Marketable		Cash Flow			Postretirement
	Adjustments			Securities		Hedges			Benefit Plans			Total
Balance, January 1, 2018	$	(2,139	)	$	13	$	3		$	(2,151	)	$	(4,274	)
Other comprehensive gain before reclassifications		39			19		5			-			63
Amounts reclassified from accumulated other comprehensive loss		-			-		(3	)		55			52
Net other comprehensive income		39			19		2			55			115
Balance, March 31, 2018	$	(2,100	)	$	32	$	5		$	(2,096	)	$	(4,159	)


										Pension and
	Currency									Other
	Translation			Marketable			Cash Flow			Postretirement
	Adjustments			Securities			Hedges			Benefit Plans			Total
Balance, January 1, 2017	$	(2,136	)	$	21		$	(19	)	$	(2,509	)	$	(4,643	)
Other comprehensive gain (loss) before reclassifications		45			(4	)		11			-			52
Amounts reclassified from accumulated other comprehensive loss		-			-			-			63			63
Income taxes		-			-			-			(1	)		(1	)
Net other comprehensive income		45			(4	)		11			62			114
Balance, March 31, 2017	$	(2,091	)	$	17		$	(8	)	$	(2,447	)	$	(4,529	)

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations.

				(Stated in millions)												(Stated in millions)

	First Quarter 2017						Fourth Quarter 2016						First Quarter 2018						First Quarter 2017
				Income						Income						Income						Income
				Before						Before						Before						Before
	Revenue			Taxes			Revenue			Taxes			Revenue			Taxes			Revenue			Taxes
Reservoir Characterization	$	1,618		$	281		$	1,676		$	319		$	1,556		$	307		$	1,618		$	281
Drilling		1,985			229			2,013			234			2,126			293			1,985			229
Production		2,187			110			2,203			128			2,959			216			2,187			110
Cameron		1,229			162			1,346			188			1,310			166			1,229			162
Eliminations & other		(125	)		(25	)		(131	)		(59	)		(122	)		(8	)		(125	)		(25	)
Pretax operating income					757						810						974						757
Corporate & other ⁽¹⁾					(239	)					(245	)					(225	)					(239	)
Interest income ⁽²⁾					24						23						25						24
Interest expense ⁽³⁾					(126	)					(126	)					(131	)					(126	)
Charges and credits⁽⁴⁾					(82	)					(675	)					-						(82	)
	$	6,894		$	334		$	7,107		$	(213	)	$	7,829		$	643		$	6,894		$	334

⁽²⁾ Interest income excludes amounts which are included in the segments’ income ($53 million in ~~2017; $7~~2018; $5 million in ~~2016)~~2017).

⁽³⁾ Interest expense excludes amounts which are included in the segments’ income ($1312 million in ~~2017;~~2018; $13 million in ~~2016)~~2017).

⁽⁴⁾ Charges and credits are described in detail in Note 2 to the Consolidated Financial Statements.

~~Certain prior period items have been reclassified~~First-quarter 2018 revenue of $7.8 billion increased 14% year-on-year as the global rig count increased by the same percentage. The North America land rig count increased by 21% year-on-year, while the international rig count was up 8%. Production Group revenue increased 35% while Drilling Group revenue increased by 7%, both driven by strong land activity in North America. Cameron Group revenue increased by 7%, while Reservoir Characterization Group revenue declined 4%.

First-quarter 2018 pretax operating margin increased 145 basis points (“bps”) year-on-year to ~~conform~~12%, as a result of improved profitability in North America due to the ~~current period presentation.~~land activity growth that benefited the Production and Drilling Groups. As a result, Production Group pretax operating margin expanded 227 bps to 7% and the Drilling Group increased 222 bps to 14%. Reservoir Characterization Group pretax operating margin increased 240 bps to 20% while the Cameron Group was essentially flat at 13%.

~~Reservoir Characterization Group~~First-quarter 2018 revenue of $1.6 billion decreased 3% sequentially primarily due to project completions in Testing & Process systems and lower SIS software license sales. These decreases were partly offset by Wireline revenue growth as a result of infrastructure-led exploration activity in North America.

Pretax operating margin of 17% decreased 170 basis points (bps) sequentially as the increased contribution from high-margin Wireline exploration activities was more than offset by reduced profitability in WesternGeco and lower contributions from SIS software license sales.

Drilling Group revenue of $2.0 billion decreased 1% sequentially as strong directional drilling activity in North America land was more than offset by lower drilling activity and pricing pressure in the International Areas.

Pretax operating margin of 12% was essentially flat sequentially despite the slight revenue decline. This was due to pricing improvements in the US offset by pricing pressure in the international markets.

~~Production Group revenue of $2.2 billion was 1% lower sequentially primarily due to a combination of decreased revenue on SPM projects in Ecuador, reduced hydraulic~~ ~~fracturing activity on land in the Middle East and lower Completions product sales.~~ ~~These decreases were partially mitigated by strong hydraulic fracturing activity and pricing recovery that led to a 19% growth in revenue in North America land.~~

Pretax operating margin of 5% decreased 78 bps sequentially as the positive effects of increased activity and pricing recovery on land in North America were more than offset by margin contraction from lower SPM revenue.

Cameron Group revenue of $1.2 billion decreased 9% sequentially driven by declining project volumes in OneSubsea and reduced product sales in Surface Systems. The revenue decline for OneSubsea was due to falling project volumes in Brazil and reduced activity in the US Gulf of Mexico. Surface Systems sales were lower in the Europe/CIS/Africa and Latin America Areas, which more than offset the double-digit revenue growth in North America land.

Pretax operating margin of 13% declined 80 bps sequentially as continued strong project execution in OneSubsea and tight cost control in Drilling Systems limited the impact of lower product volume in Surface Systems.

(Stated in millions)

First Quarter 2017

First Quarter 2016

Income

Income

Before

before

Revenue

Taxes

Revenue

Taxes

Reservoir Characterization
$
1,618

$
281

$
1,719

$
334

Drilling

1,985

229

2,493

371

Production

2,187

110

2,376

206

Cameron

1,229

162

-

-

Eliminations & other

(125
)

(25
)

(68
)

(10
)
Pretax operating income

757

901

Corporate & other ⁽¹⁾

(239
)

(172
)
Interest income ⁽²⁾

24

13

Interest expense ⁽³⁾

(126
)

(120
)
Charges and credits ⁽⁴⁾

(82
)

-

$
6,894

$
334

$
6,520

$
622

⁽¹⁾Comprised principally of certain corporate expenses not allocated to the segments, stock-based compensation costs, amortization expense associated with certain intangible assets, certain centrally managed initiatives and other nonoperating items. The first quarter of 2017 includes $63 million of intangible asset amortization expense resulting from the April 2016 acquisition of Cameron.

⁽²⁾~~Interest income excludes amounts which are included in the segments’ income ($5 million in 2017; $6 million in 2016).~~

⁽³⁾~~Interest expense excludes amounts which are included in the segments’ income ($13 million in 2017; $13 million in 2016).~~

⁽⁴⁾~~Charges and credits recorded are described in detail in Note 2 to the~~ ~~Consolidated Financial Statements~~.

~~Certain prior period items have been reclassified to conform to the current period presentation.~~

First-quarter 2017 revenue of $6.9 billion increased 6% year-on-year. This included a full quarter of activity from the acquired Cameron businesses, which contributed revenue of $1.2 billion. Excluding the impact of the Cameron acquisition, revenue declined 13% year-on-year. During the first-quarter of 2017 the North America land rig count returned to prior year levels. However, the international land rig count was lower by 8%, the North America offshore rig count was lower by 25%, and the International offshore rig count was lower by 18%. As a result, Drilling Group revenue decreased 20% while Production Group and Reservoir Characterization Group were lower by 8% and 6%, respectively. In addition to the impact of the rig count, revenue also declined year-on-year as a result of reduced activity levels in Venezuela following Schlumberger’s decision in April 2016 to align activity with cash collections.

First-quarter 2017 pretax operating margin decreased 284 bps to 11%, as a result of the overall decline in activity and pervasive pricing pressure internationally. The margin decrease was the highest in the Production Group, which contracted by 365 bps to 5%. Drilling Group pretax operating margin fell 334 bps to 12%, while the Reservoir Characterization Group decreased 206 bps to 17%, and the Cameron Group posted a pretax margin of 13%.

~~First-quarter 2017 revenue of $1.6 billion decreased 6%~~4% year-on-year primarily due to lower ~~exploration and reduced discretionary spending by customers~~revenue on a long-term surface facility project in the ~~offshore markets which impacted Wireline and SIS software~~Middle East.

Year-on-year, pretax operating margin increased 240 bps to 20% due to improved profitability for WesternGeco primarily as a result of a favorable mix of multiclient seismic license sales as well as reduced ~~activity in Venezuela. These decreases were partly offset by higher revenue from increased land seismic and~~amortization following the multiclient ~~activity in WesternGeco and increased revenue in Testing & Process relating to progress on early production facilities in~~impairment charge recorded during the ~~Middle East & Asia Area.~~

~~Year-on-year pretax operating margin decreased 206 bps to 17% due to reduced higher-margin Wireline activities partly offset by improved profitability in WesternGeco.~~fourth quarter of 2017.

First-quarter ~~2017~~2018 revenue of ~~$2.0~~$2.1 billion ~~decreased 20%~~increased 7% year-on-year primarily due to ~~the decline~~higher demand for directional drilling technologies on land in ~~the international and offshore~~both North America ~~rig counts~~ and ~~lower activity in Venezuela combined with pricing pressure~~Russia..

Year-on-year, pretax operating margin ~~decreased 334~~increased 222 bps to ~~12%~~14% primarily due to ~~a decline in higher-margin activities of Drilling & Measurements combined with the impact of pricing pressure.~~

~~First-quarter~~ 2017 revenue of $2.2 billion decreased 8% year-on-year due primarily to the decline in international activity as well as decreased revenue on SPM projects in Ecuador. These decreases were partially offset by increased hydraulic fracturing activityimproved profitability in North America ~~land.~~ due to the increased land activity and improved pricing.

First-quarter 2018 revenue of $3.0 billion increased 35% year-on-year primarily due to the significant land activity growth in North America that benefited the hydraulic fracturing business.

Year-on-year, pretax operating margin ~~decreased 365~~increased 227 bps to 5%7% as a result of ~~lower international activity and increased pricing pressure.~~

~~On April 1, 2016, Schlumberger acquired all of the outstanding shares of Cameron, a leading provider of flow equipment products, systems and services~~improved profitability in North America due to the oil and gas industry worldwide. Schlumberger issued approximately 138 million shares of its common stock, which were valued at $9.9 billion at the time of closing, and paid cash of $2.8 billion. Prior to being acquired by Schlumberger, Cameron reported revenue of approximately $1.6 billion duringgrowth in North America land activity combined with improved pricing.

During the first quarter of ~~2016.~~2018, the US land pressure pumping business was impacted by weaker-than-expected activity as well as softer pricing as compared to the fourth quarter of 2017, rising supply chain costs, and rail logistical challenges. In spite of these factors, Schlumberger continued to deploy available fracturing assets, including equipment from our newly acquired capacity. Schlumberger expects the US land hydraulic fracturing market to improve during the second quarter of 2018, both in terms of pricing and in operational efficiency and it is, therefore continuing with its aggressive fleet reactivation and recommissioning program.

First-quarter 2018 revenue of $1.3 billion increased 7% year-on-year due to improvements on land in North America that benefited the short-cycle businesses of Valves & Measurement and Surface Systems.

(Stated in millions)	(Stated in millions)				(Stated in millions)

	First Quarter				First Quarter
	2017		2016		2018		2017
Equity in net earnings of affiliated companies	$	17	$	25	$	14	$	17
Interest income		29		20		28		29
	$	46	$	45	$	42	$	46

~~The decrease~~ in earnings of equity method investments primarily reflects the effects of the downturn in the oil and gas industry, which has negatively impacted the majority of Schlumberger’s investments in affiliates, particularly those in North America.

Research & engineering and General & administrative expenses, as a percentage of Revenue, for the first quarter ~~ended March 31,~~of both 2018 and 2017 ~~and 2016~~ were as follows:

	First Quarter						First Quarter
	2017			2016			2018			2017
Research & engineering		3.1	%		3.7	%		2.2	%		3.1	%
General & administrative		1.4	%		1.7	%		1.4	%		1.4	%

Research & engineering ~~and~~ ~~General & administrative~~ costs for the first quarter of 2018 have decreased ~~$29 million and $12 million, respectively,~~as compared to the same period in 2017 as a result of cost control ~~measures, offset in part by the impact of the Cameron acquisition.~~measures.

The effective tax rate for the first quarter of ~~2017~~2018 was ~~15%~~17.6% as compared to ~~16%~~14.8% for the same period of ~~the prior year.~~2017. The ~~charges described in Note 2 to the~~ ~~Consolidated Financial Statements~~ ~~reduced the first-quarter 2017~~ effective tax rate ~~by 0.4 percentage points.~~ increased as a result of the change in the geographic mix of earnings, as Schlumberger generated a greater portion of its pretax earnings in North America during the first quarter of 2018 as compared to the same period last year.

There were no charges or credits recorded during the first quarter of ~~2016.~~2018.

In connection with Schlumberger’s acquisition of Cameron, ~~(See Note 4 –~~ ~~Acquisition of Cameron~~), Schlumberger recorded $82 million of ~~pretax~~ charges ~~($68 million after-tax) consisting of~~relating to employee benefits, facility ~~consolidation,~~closures and other merger and integration-related ~~costs during the first quarter of 2017. This charge is~~costs. These charges are classified in Merger & integration in the Consolidated Statement of Income.

~~There were no charges or credits recorded during the first quarter of 2016.~~17

Details of the components of liquidity as well as changes in liquidity ~~follows:~~follow:

	(Stated in millions)									(Stated in millions)

	Mar. 31,			Mar. 31,			Dec. 31,			Mar. 31,			Mar. 31,			Dec. 31,
Components of Liquidity	2017			2016			2016			2018			2017			2017
Cash	$	1,902		$	2,080		$	2,929		$	1,865		$	1,902		$	1,799
Short-term investments		5,451			12,352			6,328			2,300			5,451			3,290
Fixed income investments, held to maturity		238			401			238			-			238			-
Short-term borrowings and current portion of long-term debt		(2,449	)		(4,254	)		(3,153	)		(4,586	)		(2,449	)		(3,324	)
Long-term debt		(16,538	)		(17,233	)		(16,463	)		(13,526	)		(16,538	)		(14,875	)
Net debt ⁽¹⁾	$	(11,396	)	$	(6,654	)	$	(10,121	)	$	(13,947	)	$	(11,396	)	$	(13,110	)

Changes in Liquidity:	Three Months Ended Mar. 31,						Three Months Ended Mar. 31,
	2017			2016			2018			2017
Net income	$	284		$	523		$	530		$	284
Impairment and other charges								-			68
Depreciation and amortization ⁽²⁾		989			967			874			989
Earnings of equity method investments, less dividends received		(10	)		(25	)		(5	)		(10	)
Pension and other postretirement benefits expense		37			60			18			37
Stock-based compensation expense		88			61			90			88
Pension and other postretirement benefits funding		(29	)		(45	)		(39	)		(29	)
Increase in working capital ⁽³⁾		(791	)		(463	)		(836	)		(791	)
Other		88			132			(64	)		20
Cash flow from operations		656			1,210			568			656
Capital expenditures		(381	)		(549	)		(454	)		(381	)
SPM investments		(144	)		(597	)		(240	)		(144	)
Multiclient seismic data costs capitalized		(116	)		(167	)		(26	)		(116	)
Free cash flow ⁽⁴⁾		15			(103	)		(152	)		15
Dividends paid		(696	)		(629	)		(692	)		(696	)
Proceeds from employee stock plans		135			163			127			135
Stock repurchase program		(372	)		(475	)		(97	)		(372	)
		(918	)		(1,044	)		(814	)		(918	)
Business acquisitions and investments, net of cash acquired plus debt assumed		(273	)		(81	)		(13	)		(273	)
Other		(84	)		18			(10	)		(84	)
Increase in net debt		(1,275	)		(1,107	)		(837	)		(1,275	)
Net debt, beginning of period		(10,121	)		(5,547	)		(13,110	)		(10,121	)
Net debt, end of period	$	(11,396	)	$	(6,654	)	$	(13,947	)	$	(11,396	)

Key liquidity events during the first three months of 2018 and 2017 ~~and 2016~~ included:

~~The following table summarizes the activity under this share repurchase program:~~

On January 21, 2016, the Board approved a new $10 billion share repurchase ~~program for~~program. Schlumberger ~~common stock. The~~had repurchased $421 million under the new program ~~will take effect once~~as of March 31, 2018.

The following table summarizes the ~~remaining $0.3 billion authorized to be repurchased~~activity under ~~the July 18, 2013 program is exhausted.~~these share repurchase programs:

~~On March 24, 2017, Schlumberger and Weatherford announced an agreement to create OneStim~~^SM, a joint venture to deliver completions products and services for the development of unconventional resource plays in the United States and Canada land markets. The joint venture will offer one of the broadest multistage completions portfolios in the market combined with one of the largest hydraulic fracturing fleets in the industry. Schlumberger and Weatherford will have a 70%/30% ownership of the joint venture, respectively. The transaction is expected to close in the second half of 2017 and is subject to regulatory approvals and other customary closing conditions. Under the terms of the formation agreement, Schlumberger and Weatherford will contribute all their respective North America land hydraulic fracturing pressure pumping assets, multistage completions, and pump-down perforating businesses. Schlumberger will also make a $535 million cash payment to Weatherford. Schlumberger will manage the joint venture and consolidate it for financial reporting purposes.

In April 2016, Schlumberger announced that it would reduce its activity in Venezuela to align operations with cash collections as a result of insufficient payments received in recent quarters and a lack of progress in establishing new mechanisms that address past and future accounts receivable. Schlumberger’s total net receivable balance in Venezuela as of March 31, 2017 was approximately $1.2 billion. During the first quarter of 2017, Schlumberger reclassified $700 million of this balance from ~~Receivables less allowance for doubtful accounts~~ ~~to long-term within~~ ~~Other Assets~~ ~~in the~~ ~~Consolidated Balance Sheet~~.

~~Schlumberger continues to experience payment delays from certain other customers as well, primarily as a result of the impact of lower oil prices in the industry. In this regard, included in~~ ~~Receivables less allowance for doubtful accounts~~ ~~in the~~ ~~Consolidated Balance Sheet~~ ~~at March 31, 2017, is approximately $1.2 billion of receivables relating to Ecuador.~~

Schlumberger operates in more than 85 countries. ~~At March~~As of December 31, 2017, only five of those countries individually accounted for greater than 5% of Schlumberger’s net ~~receivable~~receivables balance, of which only ~~three~~one (the United ~~States, Venezuela and Ecuador)~~States) accounted for greater than 10%. of such receivables.

As of March 31, ~~2017,~~2018, Schlumberger had ~~$7.4~~$4.2 billion of cash and short-term investments on hand. Schlumberger had separate committed debt facility agreements aggregating ~~$6.6~~$6.5 billion ~~with~~that support commercial ~~banks,~~paper programs, of which ~~$3.7~~$3.5 billion was available and ~~unused as of March 31, 2017. The $6.6 billion of committed debt facility agreements included $6.3 billion of committed facilities that support commercial paper programs.~~unused. Schlumberger believes these amounts are sufficient to meet future business requirements for at least the next 12 months.

Borrowings under the commercial paper programs at March 31, ~~2017~~2018 were ~~$2.9~~$3.0 billion.

This first-quarter 2018 Form 10-Q, ~~and~~as well as other statements we make, contain “forward-looking statements” within the meaning of the federal securities laws, which include any statements that are not historical facts, such as our forecasts or expectations regarding business outlook; growth for Schlumberger as a whole and for each of its segments (and for specified products or geographic areas within each segment); oil and natural gas demand and production growth; oil and natural gas prices; improvements in operating procedures and technology, including our transformation program; capital expenditures by Schlumberger and the oil and gas industry; the business strategies of Schlumberger’s customers; the ~~anticipated benefits~~effects of ~~the Cameron transaction;~~US tax reform; our effective tax rate; the success of Schlumberger’s SPM projects, joint ventures and alliances; future global economic conditions; and future results of operations. These statements are subject to risks and uncertainties, including, but not limited to, global economic conditions; changes in exploration and production spending by Schlumberger’s customers and changes in the level of oil and natural gas exploration and development; general economic, political and business conditions in key regions of the world; foreign currency risk; ~~payment delays;~~ pricing pressure; weather and seasonal factors; operational modifications, delays or cancellations; production declines; changes in government regulations and regulatory requirements, including those related to offshore oil and gas exploration, radioactive sources, explosives, chemicals, hydraulic fracturing services and climate-related initiatives; the inability of technology to meet new challenges in exploration; the inability to ~~integrate the Cameron business and to realize expected synergies; the inability to~~ retain key employees; and other risks and uncertainties detailed in this first-quarter ~~2017~~2018 Form 10-Q and our most recent ~~Form~~Forms 10-K, 10-Q, and ~~Forms~~ 8-K filed with or furnished to the Securities and Exchange Commission. If one or more of these or other risks or uncertainties materialize (or the consequences of any such development changes), or should our underlying assumptions prove incorrect, actual outcomes may vary materially from those reflected in our forward-looking statements. Schlumberger disclaims any intention or obligation to update publicly or revise such statements, whether as a result of new information, future events or otherwise.

For quantitative and qualitative disclosures about market risk affecting Schlumberger, see Item 7A, “Quantitative and Qualitative Disclosures about Market Risk,” of the Schlumberger Annual Report on Form 10-K for the fiscal year ended December 31, ~~2016.~~2017. Schlumberger’s exposure to market risk has not changed materially since December 31, ~~2016.~~2017.

Schlumberger has carried out an evaluation under the supervision and with the participation of Schlumberger’s management, including the Chief Executive Officer (“CEO”) and the Chief Financial Officer (“CFO”), of the effectiveness of Schlumberger’s “disclosure controls and procedures” (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934 (the “Exchange Act”)) as of the end of the period covered by this report. Based on this evaluation, the CEO and the CFO have concluded that, as of the end of the period covered by this report, Schlumberger’s disclosure controls and procedures were effective to provide reasonable assurance that information required to be disclosed in the reports that Schlumberger files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms. Schlumberger’s disclosure controls and procedures include controls and procedures designed to ensure that information required to be disclosed in reports filed or submitted under the Exchange Act is accumulated and communicated to its management, including the CEO and the CFO, as appropriate, to allow timely decisions regarding required disclosure. There was no change in Schlumberger’s internal control over financial reporting during the quarter to which this report relates that has materially affected, or is reasonably likely to materially affect, Schlumberger’s internal control over financial reporting.

The information with respect to this Item 1 is set forth under Note ~~11—~~10—Contingencies, in the Consolidated Financial Statements.

As of the date of this filing, there have been no material changes from the risk factors ~~previously~~ disclosed in Part 1, Item 1A, of Schlumberger’s Annual Report on Form 10-K for the fiscal year ended December 31, ~~2016.~~2017.

~~On July 18, 2013, the Board approved a~~As of March 31, 2018, Schlumberger had repurchased $421 million of Schlumberger common stock under its $10 billion share repurchase ~~program for shares of Schlumberger common stock, to be completed at the latest by June 30, 2018.~~program.

Schlumberger’s common stock repurchase ~~program~~ activity for the three months ended March 31, ~~2017~~2018 was as follows:

(Stated in thousands, except per share amounts)

Total number of shares purchased

Average price paid per share

Total number of shares purchased as part of publicly announced program

Maximum value of shares that may yet be purchased under the program

January 1 through January 1, 2017

-

$
-

-

$
645,040

February 1 through February 28, 2017

638.3

$
80.76

638.3

$
593,491

March 1 through March 31, 2017

4,076.1

$
78.69

4,076.1

$
272,727

4,714.4

$
78.97

4,714.4

	(Stated in thousands, except per share amounts)

	Total number of shares purchased		Average price paid per share		Total number of shares purchased as part of publicly announced programs		Maximum value of shares that may yet be purchased under the programs
January 2018		448.5	$	74.88		448.5	$	9,642,781
February 2018		441.6	$	68.63		441.6	$	9,612,478
March 2018		506.9	$	66.30		506.9	$	9,578,866
		1,397.0	$	69.79		1,397.0

In connection with the exercise of stock options under Schlumberger’s incentive compensation plans, Schlumberger routinely receives shares of its common stock from optionholders in consideration of the exercise price of the stock options. Schlumberger does not view these transactions as requiring disclosure under this Item as the number of shares of Schlumberger common stock received from optionholders is not material.

On January 21, 2016, the Board approved a new $10 billion share repurchase program for Schlumberger common stock. This new program will take effect once the remaining $0.3 billion authorized to be repurchased under the July 18, 2013 program is exhausted.

Our mining operations are subject to regulation by the federal Mine Safety and Health Administration under the Federal Mine Safety and Health Act of 1977. Information concerning mine safety violations or other regulatory matters required by section 1503(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act and Item 104 of Regulation S-K is included in Exhibit 95 to this report.

In 2013, Schlumberger completed the ~~wind down~~wind-down of its service operations in ~~Iran during 2013.~~Iran. Prior to this, certain non-US subsidiaries ~~of Schlumberger~~ provided oilfield services to the National Iranian Oil Company and certain of its affiliates (“NIOC”).

Schlumberger’s residual transactions or dealings with the government of Iran induring the first quarter of ~~2017~~2018 consisted of payments of taxes and other typical governmental charges. Certain non-US subsidiaries of Schlumberger maintain depository accounts at the Dubai branch of Bank Saderat Iran (“Saderat”), and at Bank Tejarat (“Tejarat”) in Tehran and in Kish for the deposit by NIOC of amounts owed to non-US subsidiaries of Schlumberger for prior services rendered in Iran and for the maintenance of such amounts previously received. One non-US subsidiary also maintains an account at Tejarat for payment of local expenses such as taxes. Schlumberger anticipates that it will discontinue dealings with Saderat and Tejarat following the receipt of all amounts owed to Schlumberger for prior services rendered in Iran.

During the fourth quarter of 2016, a non-US subsidiary entered into a memorandum of understanding (“MOU”) with NIOC relating to the non-disclosure of data required for the technical evaluation of an oilfield project. In the first quarter of 2017, the Schlumberger subsidiary provided NIOC with written notice that it was terminating the MOU, effective March 11, 2017. The MOU did not involve the provision of services.

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 thereunto duly authorized and in his capacity as Chief Accounting Officer.

CURAÇAO		52-0684746
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification No.)

42 RUE SAINT-DOMINIQUE
PARIS, FRANCE		75007

5599 SAN FELIPE
HOUSTON, TEXAS, U.S.A.		77056

62 BUCKINGHAM GATE
LONDON, UNITED KINGDOM		SW1E 6AJ

PARKSTRAAT 83 THE HAGUE,
THE NETHERLANDS		2514 JG
(Addresses of principal executive offices)		(Zip Codes)

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐ (Do not check if a smaller reporting company)	Smaller reporting company	☐
Emerging growth company	☐

Class	Outstanding at March 31, ~~2017~~2018
COMMON STOCK, $0.01 PAR VALUE PER SHARE	~~1,389,476,854~~1,385,133,215

		Page
PART I	Financial Information

Item 1.	Financial Statements	3

Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	1516

Item 3.	Quantitative and Qualitative Disclosures about Market Risk	2019

Item 4.	Controls and Procedures	20

PART II	Other Information

Item 1.	Legal Proceedings	2120

Item 1A.	Risk Factors	2120

Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	2120

Item 3.	Defaults Upon Senior Securities	2120

Item 4.	Mine Safety Disclosures	21

Item 5.	Other Information	2221

Item 6.	Exhibits	2322

	Certifications

		Schlumberger Limited (Registrant)
Date:	April ~~26, 2017~~25, 2018	/s/ Howard Guild
		Howard Guild
		Chief Accounting Officer and Duly Authorized Signatory

			(Stated in millions)

	Fair Value of Derivatives				Consolidated Balance Sheet Classification
	Mar. 31,		Dec. 31,
	2017		2016
Derivative Assets
Derivatives designated as hedges:
Foreign exchange contracts	$	2	$	1	Other current assets

Derivatives not designated as hedges:
Foreign exchange contracts	$	35	$	42	Other current assets
	$	37	$	43
Derivative Liabilities
Derivatives designated as hedges:
Foreign exchange contracts	$	7	$	18	Accounts payable and accrued liabilities
Cross currency swap		37		49	Other Liabilities
	$	44	$	67

Derivatives not designated as hedges:
Foreign exchange contracts	$	21	$	59	Accounts payable and accrued liabilities
	$	65	$	126

	(Stated in millions)

				Unrealized						Pension and
	Currency			Gain on						Other
	Translation			Marketable			Cash Flow			Postretirement
	Adjustments			Securities			Hedges			Benefit Plans			Total
Balance, January 1, 2017	$	(2,136	)	$	21		$	(19	)	$	(2,509	)	$	(4,643	)
Other comprehensive gain (loss) before reclassifications		45			(4	)		11			-			52
Amounts reclassified from accumulated other comprehensive loss		-			-			-			63			63
Income taxes		-			-			-			(1	)		(1	)
Net other comprehensive (loss) income		45			(4	)		11			62			114
Balance, March 31, 2017	$	(2,091	)	$	17		$	(8	)	$	(2,447	)	$	(4,529	)

(Stated in millions, except per share amounts)

	Total cost		Total number		Average price
	of shares		of shares		paid per
	purchased		purchased		share
Three months ended March 31, 2017	$	372		4.7	$	78.97
Three months ended March 31, 2016	$	475		7.1	$	67.34