L Steven Bietz

Insider Trading: Sales

Symbol	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
MDU	$34.51	10,257	$354,019.33	34,704	2014-02-19	Filing
MDU	$26.37	10,000	$263,733.00	23,885	2013-05-07	Filing
MDU	$20.73	800	$16,586.40	25,855	2009-08-10	Filing
MDU	$20.73	2,200	$45,606.00	26,655	2009-08-10	Filing