Exhibit 99.4

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

(unaudited)

	Nine Months Ended September 30,						Years Ended December 31,
(Amounts in millions of dollars)	2015			2014			2014		2013			2012		2011			2010
Net income(a)(b)		6,713			9,902			4,244		11,228			13,648		17,400			14,740
Income tax expenses(a)(b)		3,034			9,336			8,614		14,767			16,747		19,614			13,583
Non-controlling interests		(127	)		190			6		293			188		424			313
Equity in income of affiliates (in excess of)/ less than dividends received		(350	)		(374	)		29		(775	)		272		(149	)		(623	)
Interest expensed		553			475			536		656			649		862			551
Estimate of the interest within rental expense		305			273			406		357			334		299			268
Amortization of capitalized interest		118			112			160		135			205		280			317
Total(a)(b)		10,246			19,914			13,995		26,661			32,043		38,730			29,149
Interest expensed		553			475			536		656			649		862			551
Capitalized interest		258			247			341		349			333		245			156
Estimate of the interest within rental expense		305			273			406		357			334		299			268
Preference security dividend requirements of consolidated subsidiaries		—			—			—		—			—		—			—
Fixed charges		1,116			995			1,283		1,362			1,316		1,406			975
Ratio of earnings to fixed charges(a)(b)		9.18			20.01			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.