EXHIBIT 11

OCCIDENTAL PETROLEUM CORPORATION AND SUBSIDIARIES

COMPUTATION OF EARNINGS PER SHARE

FOR THE THREE MONTHS ENDED MARCH 31, 2008 AND 2007

(Amounts in millions, except per-share amounts)

		2008			2007
BASIC EARNINGS PER SHARE
Earnings applicable to common stock	$	1,846		$	1,212
Basic shares
Weighted average common shares outstanding		878.0			871.1
Treasury stock		(55.4	)		(34.3	)
Vested, unissued shares		1.0			4.2
Basic shares		823.6			841.0
Basic earnings per share
Income from continuing operations	$	2.21		$	1.39
Discontinued operations, net		0.03			0.05
Basic earnings per common share	$	2.24		$	1.44
DILUTED EARNINGS PER SHARE
Earnings applicable to common stock	$	1,846		$	1,212
Diluted shares
Basic shares		823.6			841.0
Dilutive effect of stock options and unvested restricted shares		4.6			5.5
Diluted shares		828.2			846.5
Diluted earnings per share
Income from continuing operations	$	2.20		$	1.38
Discontinued operations, net		0.03			0.05
Diluted earnings per common share	$	2.23		$	1.43