EXHIBIT 11

COMPUTATION OF EARNINGS PER SHARE

In thousands of dollars, except per share data

	Three Months Ended March 31,
	2005		2004
Numerator:
Net income	$	47,882	$	116,460
Effect of dilutive securities - none
Numerator for net income per common share - diluted	$	47,882	$	116,460
Denominator:
Weighted average common shares		559,528		616,557
Effect of dilutive securities:
Stock options and common stock warrants		1,428		3,071
Denominator for net income per common share - diluted		560,956		619,628
Net income per common share:
Basic	$	.09	$	.19
Diluted	$	.09	$	.19