Exhibit 99.1

Computation of ratio of earnings to fixed charges

	Full year 2012
	$ million, except ratio
Profit before taxation(a)		18,809
Group’s share of income in excess of dividends of equity-accounted entities		(2,209	)
Capitalized interest, net of amortization		(233	)
Profit as adjusted		16,367
Fixed charges:
Interest expense		842
Rental expense representative of interest		1,734
Capitalized interest		378
		2,954
Total adjusted earnings available for payment of fixed charges		19,321
Ratio of earnings to fixed charges		6.5

^(a)  Includes $709 million of dividends received from TNK-BP. See Note 3 for further information.