Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Parenthetical)

 v2.3.0.11
Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data
Jun. 30, 2011
Dec. 31, 2010
Condensed Consolidated Balance Sheets    
Oil and natural gas properties and equipment-full cost method, amount excluded from amortization $ 151,934 $ 65,419
Preferred stock, par value $ 0.00001 $ 0.00001
Preferred stock, shares authorized 2,000,000 2,000,000
Preferred stock, shares issued 0 0
Common stock, par value $ 0.00001 $ 0.00001
Common stock, shares authorized 118,330,000 118,330,000
Common stock, shares issued 77,338,074 77,343,520
Common stock, shares outstanding 74,468,901 74,474,347