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)	2015		2014	2014	2013		2012	2011		2010

Net income(a)(b)	2,663		3,335	4,244	11,228		13,648	17,400		14,740
Income tax expenses(a)(b)	1,482		3,597	8,614	14,767		16,747	19,614		13,583
Non-controlling interests	(155	)	100	6	293		188	424		313
Equity in income of affiliates (in excess of)/ less than dividends received	(68	)	11	29	(775	)	272	(149	)	(623	)
Interest expensed	210		142	536	656		649	862		551
Estimate of the interest within rental expense	102		92	406	357		334	299		268
Amortization of capitalized interest	41		33	160	135		205	280		317

Total(a)(b)	4,275		7,310	13,995	26,661		32,043	38,730		29,149

Interest expensed	210		142	536	656		649	862		551
Capitalized interest	80		85	341	349		333	245		156
Estimate of the interest within rental expense	102		92	406	357		334	299		268
Preference security dividend requirements of consolidated subsidiaries	—		—	—	—		—	—		—

Fixed charges	392		319	1,283	1,362		1,316	1,406		975

Ratio of earnings to fixed charges(a)(b)	10.91		22.92	10.91	19.57		24.35	27.55		29.90

(a) Figures for 2013 have been restated pursuant to the retrospective application of the accounting interpretation IFRIC 21 from January 1, 2014.

(b) Figures for 2012, 2011 and 2010 have been restated pursuant to the retrospective application of the revised accounting standard IAS 19 from January 1, 2013.