LyondellBasell Industries (LYB) 8-K Entry into a Material Definitive Agreement

Exhibit 12.1

STATEMENT SETTING FORTH DETAIL FOR COMPUTATION OF

RATIO OF EARNINGS TO FIXED CHARGES

	Successor												Predecessor
										May 1			January 1
	Year Ended									through			through			Year Ended
	December 31,									December 31,			April 30,			December 31,
Millions of dollars, ratio data	2013			2012			2011			2010			2010			2009
Income (loss) from continuing operations before income taxes	$	4,996		$	4,185		$	3,531		$	1,731		$	6,947		$	(4,096	)
Deduct income (loss) from equity investments		203			143			216			86			84			(181	)
Add distributions of earnings from equity investments		186			147			206			34			18			26
Earnings adjusted for equity investments		4,979			4,189			3,521			1,679			6,881			(3,889	)
Fixed charges:
Interest expense, gross		309			655			1,044			545			713			1,795
Portion of rentals representative of interest		108			103			95			56			35			104
Total fixed charges before capitalized interest		417			758			1,139			601			748			1,899
Capitalized interest		15			9			8			2			4			35
Total fixed charges including capitalized interest		432			767			1,147			603			752			1,934
Earnings before fixed charges	$	5,411		$	4,956		$	4,668		$	2,282		$	7,633		$	(1,955	)
Ratio of earnings to fixed charges(a)		12.53	x		6.46	x		4.07	x		3.78	x		10.15	x		—	x

(a) For the year 2009, earnings were insufficient to cover fixed charges by $3,889 million.