M Susan Cunningham

Insider Trading: Sales
Company Symbol Price Amount Relationship Remaining Holdings Date Form 4
NBL $95.05 13,300 53,361 2011-11-11 Filing
NBL $88.06 20,000 53,361 2011-10-21 Filing
NBL $95.60 6,000 53,361 2011-04-20 Filing
NBL $90.00 7,000 49,529 2011-01-31 Filing
NBL $85.21 7,000 50,573 2010-12-06 Filing