Exhibit 99.4

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

(unaudited)

	Three Months     Ended March 31,				Years Ended December 31,
(Amounts in millions of dollars)	2017		2016		2016		2015		2014		2013		2012
Net income(a)		2,849		1,606		6,196		5,087		4,244		11,228		13,648
Income tax expenses(a)		693		(48)		970		1,653		8,614		14,767		16,747
Non-controlling interests		(70)		15		10		(301)		6		293		188
Equity in income of affiliates (in excess of)/ less than dividends received		(295)		(236)		(643)		(311)		29		(775)		272
Interest expensed		229		179		734		742		536		656		649
Estimate of the interest within rental expense		136		119		543		477		406		357		334
Amortization of capitalized interest		58		41		161		174		160		135		205
Total(a)		3,600		1,676		7,971		7,521		13,995		26,661		32,043
Interest expensed		229		179		734		742		536		656		649
Capitalized interest		121		118		481		362		341		349		333
Estimate of the interest within rental expense		136		119		543		477		406		357		334
Preference security dividend requirements of consolidated subsidiaries		—		—		—		—		—		—		—
Fixed charges		486		416		1,758		1,581		1,283		1,362		1,316
Ratio of earnings to fixed charges(a)		7.41		4.03		4.53		4.76		10.91		19.57		24.35

 ^(a) Figures for 2013 have been restated pursuant to the retrospective application of the accounting interpretation IFRIC 21 from January 1, 2014, and figures for 2012 have been restated pursuant to the retrospective application of the revised accounting standard IAS 19 from January 1, 2013.