D Chad Winter

Insider Trading: Sales

Symbol	Price	Amount	Total Value	Remaining Holdings	Date	Form 4
N O G	$23.62	8,986	$212,249.32	218,503	2011-04-15	Filing
N O G	$28.87	45,624	$1,317,164.88	227,489	2011-03-18	Filing
N O G	$28.66	9,984	$286,166.40	273,113	2011-03-10	Filing
N O G	$30.73	20,000	$614,538.00	283,097	2011-03-09	Filing