Exhibit 7

Computation of ratio of earnings to fixed charges (unaudited)

	$ million, except ratios
For the year ended 31 December	2011			2010			2009			2008			2007
Profit (loss) before taxation		38,834			(4,825	)		25,124			34,283			31,611
Group’s share of income in excess of dividends of equity-accounted entities		(839	)		(1,480	)		(898	)		(93	)		(1,359	)
Capitalized interest, net of amortization		(303	)		(42	)		64			56			(183	)
Profit (loss) as adjusted(a)		37,692			(6,347	)		24,290			34,246			30,069
Fixed charges:
Interest expense		788			701			718			1,157			1,110
Rental expense representative of interest		1,654			1,987			1,370			1,231			1,033
Capitalized interest		347			254			188			162			323
		2,789			2,942			2,276			2,550			2,466
Total adjusted earnings (deficit) available for payment of fixed charges		40,481			(3,405	)		26,566			36,796			32,535
Ratio of earnings to fixed charges		14.5			—			11.7			14.4			13.2
Deficiency(b)					(6,347	)

^(a) Includes a pre-tax credit of $3,742 million (2010 pre-tax charge of $40,935 million) related to Gulf of Mexico oil spill.

^(b)  Adjusted earnings are inadequate to cover fixed charges.