CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Revenues
Lime and limestone operations	$ 33,382	$ 36,151	$ 63,584	$ 67,632
Natural gas interests	3,458	1,775	6,322	3,909
Total revenues	36,840	37,926	69,906	71,541
Cost of revenues:
Labor and other operating expenses	23,058	24,108	43,344	45,029
Depreciation, depletion and amortization	3,383	3,259	6,751	6,433
Total cost of revenues	26,441	27,367	50,095	51,462
Gross profit	10,399	10,559	19,811	20,079
Selling, general and administrative expenses	2,081	1,945	4,266	4,310
Operating profit	8,318	8,614	15,545	15,769
Other expense (income):
Interest expense	627	666	1,280	1,320
Other, net	(42)	(44)	(63)	(46)
Total other expense (income)	585	622	1,217	1,274
Income before income taxes	7,733	7,992	14,328	14,495
Income tax expense	1,938	2,329	3,719	4,170
Net income	$ 5,795	$ 5,663	$ 10,609	$ 10,325
Income per share of common stock:
Basic (in dollars per share)	$ 0.90	$ 0.88	$ 1.65	$ 1.61
Diluted (in dollars per share)	$ 0.90	$ 0.88	$ 1.65	$ 1.61