Quarterly report pursuant to Section 13 or 15(d)

DERIVATIVE INSTRUMENTS AND PRICE RISK MANAGEMENT, Part 2 (Details)

v2.4.0.8
DERIVATIVE INSTRUMENTS AND PRICE RISK MANAGEMENT, Part 2 (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2013
Dec. 31, 2012
Sep. 30, 2013
Designated as Hedging Instrument [Member]
Cash Flow Hedging [Member]
Sep. 30, 2012
Designated as Hedging Instrument [Member]
Cash Flow Hedging [Member]
Sep. 30, 2013
Designated as Hedging Instrument [Member]
Cash Flow Hedging [Member]
Sep. 30, 2012
Designated as Hedging Instrument [Member]
Cash Flow Hedging [Member]
Sep. 30, 2013
Current Assets/Liabilities [Member]
Dec. 31, 2012
Current Assets/Liabilities [Member]
Sep. 30, 2013
Non-Current Assets/Liabilities [Member]
Dec. 31, 2012
Non-Current Assets/Liabilities [Member]
Sep. 30, 2013
Swap Contracts [Member]
Current Assets/Liabilities [Member]
Dec. 31, 2012
Swap Contracts [Member]
Current Assets/Liabilities [Member]
Sep. 30, 2013
Swap Contracts [Member]
Non-Current Assets/Liabilities [Member]
Dec. 31, 2012
Swap Contracts [Member]
Non-Current Assets/Liabilities [Member]
Sep. 30, 2013
Costless Collars [Member]
Current Assets/Liabilities [Member]
Dec. 31, 2012
Costless Collars [Member]
Current Assets/Liabilities [Member]
Sep. 30, 2013
Costless Collars [Member]
Non-Current Assets/Liabilities [Member]
Dec. 31, 2012
Costless Collars [Member]
Non-Current Assets/Liabilities [Member]
Derivative Assets [Abstract]                                    
Derivative Instruments $ 22,692 $ 4,095,197                 $ 619,662 $ 680,647     $ 60,860 $ 11,769,415    
Derivative Assets, Noncurrent 934,545 1,763,008                     1,863,580 1,977,722     120,398 5,629,996
Total Derivatives Assets 2,664,500 20,057,780                                
Derivative Liabilities [Abstract]                                    
Derivative Liabilities, Current 21,841,508 0                 (21,336,245) (2,037,070)     (1,163,093) (6,317,795)    
Derivative Liabilities, Noncurrent 3,059,416 2,547,745                     (4,108,849) (3,170,945)     0 (5,221,510)
Total Derivatives Liabilities (26,608,187) (16,747,320)                                
Loss on Settled Derivatives reclassified to income     0 0 0 101,309                        
Reconciliation between gross assets and liabilities and amounts reflected on balance sheet [Abstract]                                    
Offsetting of Financial Assets and Derivative Assets, Gross Amounts of Recognized Assets 2,664,500 20,057,781         680,522 12,450,062 1,983,978 7,607,719                
Offsetting of Financial Liabilities and Derivative Liabilities, Gross Amounts of Recognized Assets (26,608,187) (16,747,321)         (22,499,338) (8,354,865) (4,108,849) (8,392,456)                
Offsetting of Financial Assets and Derivative Assets, Gross Amounts Offset in the Balance Sheet (1,707,263) (14,199,576)         (657,830) (8,354,865) (1,049,433) (5,844,711)                
Offsetting of Financial Liabilities and Derivative Liabilities, Gross Amounts Offset in the Balance Sheet 1,707,263 14,199,576         657,830 8,354,865 1,049,433 5,844,711                
Offsetting of Financial Assets and Derivative Assets, Net Amounts of Assets Presented in the Balance Sheet 957,237 5,858,205         22,692 4,095,197 934,545 1,763,008                
Offsetting of Financial Liabilities and Derivative Liabilities, Net Amounts of Assets Presented in the Balance Sheet $ (24,900,924) $ (2,547,745)         $ (21,841,508) $ 0 $ (3,059,416) $ (2,547,745)