Summary of Quarterly Financial Data (unaudited)

12 Months Ended

Dec. 31, 2011

Summary of Quarterly Financial Data (unaudited)

Summary of Quarterly Financial Data (unaudited)

(11) Summary of Quarterly Financial Data (unaudited)

	2011
	March 31,		June 30,		September 30,		December 31,
Revenues
Lime and limestone operations	$	30,202	$	33,382	$	35,658	$	30,462
Natural gas interests		2,864		3,458		3,524		3,032
	$	33,066	$	36,840	$	39,182	$	33,494
Gross profit
Lime and limestone operations	$	7,539	$	7,814	$	10,092	$	6,696
Natural gas interests		1,873		2,585		2,447		2,302
	$	9,412	$	10,399	$	12,539	$	8,998
Net income	$	4,813	$	5,795	$	7,062	$	4,515
Basic income per common share	$	0.75	$	0.90	$	1.12	$	0.73
Diluted income per common share	$	0.75	$	0.90	$	1.11	$	0.72

	2010
	March 31,		June 30,		September 30,		December 31,
Revenues
Lime and limestone operations	$	31,481	$	36,151	$	30,458	$	27,079
Natural gas interests		2,134		1,775		1,411		2,105
	$	33,615	$	37,926	$	31,869	$	29,184
Gross profit
Lime and limestone operations	$	7,904	$	9,303	$	7,929	$	6,073
Natural gas interests		1,616		1,256		936		1,024
	$	9,520	$	10,559	$	8,865	$	7,097
Net income	$	4,662	$	5,663	$	4,546	$	3,169
Basic income per common share	$	0.73	$	0.88	$	0.71	$	0.50
Diluted income per common share	$	0.73	$	0.88	$	0.71	$	0.49