Exhibit 11.01

MARTIN MARIETTA MATERIALS, INC. AND CONSOLIDATED SUBSIDIARIES

COMPUTATION OF EARNINGS PER SHARE

For the Quarter and Six-Months Ended June 30, 2000 and 1999

(Dollars in Thousands, Except Per Share Data)

		Three-Months Ended				Six-Months Ended
		June 30,				June 30,
		2000		1999		2000		1999
Net earnings		$	42,122	$	41,273	$	49,452	$	49,213
Weighted average number of shares outstanding:
	Basic earnings per share		46,751,001		46,684,229		46,738,229		46,659,901
	Effect of dilutive securities		294,401		346,682		227,002		306,548
	Diluted earnings per share		47,045,402		47,030,911		46,965,231		46,966,449
Net earnings per share
	—basic	$	0.90	$	0.88	$	1.06	$	1.05
	—diluted	$	0.90	$	0.88	$	1.05	$	1.05