Exhibit 12.1

SCHLUMBERGER LIMITED AND SUBSIDIARIES

Computation of Ratio of Earnings to Fixed Charges

																($ millions)
	Nine months ended			Year Ended December 31,
	Sept 30, 2017			2016			2015			2014			2013			2012
Earnings
Income (Loss) from continuing operations before taxes	$	1,027		($	1,905	)	$	2,881		$	7,639		$	8,691		$	6,959
Add/(Deduct):
Fixed charges		538			744			578		$	674			725			674
Distributed income of affiliated companies		23			30			59			127			61			81
Equity income		(75	)		(90	)		(184	)		(240	)		(132	)		(142	)
Total earnings	$	1,513		($	1,221	)	$	3,334		$	8,200		$	9,345		$	7,572
Fixed charges
Interest expense	$	422		$	570		$	346		$	369		$	391		$	340
Add:
Interest component of rental expense		116			174			232			305			334			334
Total fixed charges	$	538		$	744		$	578		$	674		$	725		$	674
Ratio of earning to fixed charges		2.8			(1.6	)		5.8			12.2			12.9			11.2