EXHIBIT 11

OCCIDENTAL PETROLEUM CORPORATION AND SUBSIDIARIES

COMPUTATION OF EARNINGS PER SHARE

FOR THE THREE MONTHS ENDED MARCH 31, 2007 AND 2006

(Amounts in millions, except per-share amounts)

Three months ended March 31		2007			2006
BASIC EARNINGS PER SHARE
Earnings applicable to common stock	$	1,212		$	1,231
Basic shares
Weighted average common shares outstanding		871.1			842.5
Treasury stock		(34.3	)		(1.3	)
Vested, unissued restricted stock		3.3			3.6
Deferred share units		0.9			3.7
Basic shares		841.0			848.5
Basic earnings per share
Income from continuing operations	$	1.44		$	1.36
Discontinued operations, net		—			0.09
Basic earnings per common share	$	1.44		$	1.45
DILUTED EARNINGS PER SHARE
Earnings applicable to common stock	$	1,212		$	1,231
Diluted shares
Basic shares		841.0			848.5
Dilutive effect of options outstanding		3.5			9.7
Deferred, restricted stock		2.0			2.7
Diluted shares		846.5			860.9
Diluted earnings per share
Income from continuing operations	$	1.43		$	1.34
Discontinued operations, net		—			0.09
Diluted earnings per common share	$	1.43		$	1.43