Exhibit 11.01

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

COMPUTATION OF EARNINGS PER SHARE

For the Quarter and Six-Months Ended June 30, 2001 and 2000
(Dollars in Thousands, Except Per Share Data)

		Three-Months Ended				Six-Months Ended
		June 30,				June 30,
		2001		2000		2001		2000
Net earnings		$	39,002	$	42,122	$	34,350	$	49,452
Weighted average number of shares outstanding:
	Basic earnings per share		47,559,897		46,751,001		47,317,797		46,738,229
	Effect of dilutive securities		244,077		294,401		224,236		227,002
	Diluted earnings per share		47,803,974		47,045,402		47,542,033		46,965,231
Net earnings per share — basic		$	0.82	$	0.90	$	0.73	$	1.06
Net earnings per share — diluted		$	0.82	$	0.90	$	0.72	$	1.05