Quarterly report pursuant to Section 13 or 15(d)

长期债务 (Narrative) (Details)

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长期债务 (Narrative) (Details) (USD $)
 3 Months Ended 9月结束 9月结束 0 Months Ended 0 Months Ended
9月. 30, 2013
9月. 30, 2012
9月. 30, 2013
9月. 30, 2012
9月. 30, 2013
Senior Notes [Member]
12月. 31, 2012
Senior Notes [Member]
12月. 21, 2012
Senior Notes [Member]
10月. 17, 2012
Senior Notes [Member]
10月. 09, 2012
Senior Notes [Member]
9月. 30, 2013
Building Loans [Member]
12月. 31, 2012
Building Loans [Member]
3月. 31, 2011
Building Loans [Member]
10月. 09, 2012
Maximum [Member]
Senior Notes [Member]
10月. 09, 2012
Minimum [Member]
Senior Notes [Member]
12月. 24, 2010
Amegy Bank National Association [Member]
9月. 30, 2010
Amegy Bank National Association [Member]
10月. 31, 2011
Nova Scotia, KeyBank, Societe Generale [Member]
2011年5月3日
Nova Scotia, KeyBank, Societe Generale [Member]
2012年5月2日
Credit Suisse, Deutche Bank, IberiaBank,KeyBank,Amegy Bank, Nova Scotia [Member]
12月. 18, 2012
Nova Scotia, Amegy, KeyBank [Member]
10月. 19, 2012
Nova Scotia, Amegy, KeyBank [Member]
10月. 17, 2012
Nova Scotia, Amegy, KeyBank [Member]
9月. 30, 2013
Nova Scotia, Amegy, KeyBank [Member]
小君. 06, 2013
Nova Scotia, Amegy, KeyBank [Member]
12月. 18, 2012
Nova Scotia, Amegy, KeyBank [Member]
Senior Notes [Member]
10月. 17, 2012
Nova Scotia, Amegy, KeyBank [Member]
Senior Notes [Member]
10月. 09, 2012
Nova Scotia, Amegy, KeyBank [Member]
Senior Notes [Member]
小君. 06, 2013
Base Rate Loans [Member]
Nova Scotia, Amegy, KeyBank [Member]
12月. 18, 2012
Base Rate Loans [Member]
Nova Scotia, Amegy, KeyBank [Member]
10月. 19, 2012
Base Rate Loans [Member]
Nova Scotia, Amegy, KeyBank [Member]
10月. 17, 2012
Base Rate Loans [Member]
Nova Scotia, Amegy, KeyBank [Member]
小君. 06, 2013
Euro Dollar Loans [Member]
Nova Scotia, Amegy, KeyBank [Member]
12月. 18, 2012
Euro Dollar Loans [Member]
Nova Scotia, Amegy, KeyBank [Member]
10月. 19, 2012
Euro Dollar Loans [Member]
Nova Scotia, Amegy, KeyBank [Member]
10月. 17, 2012
Euro Dollar Loans [Member]
Nova Scotia, Amegy, KeyBank [Member]
12月. 18, 2012
Federal Funds Rate [Member]
Base Rate Loans [Member]
Nova Scotia, Amegy, KeyBank [Member]
12月. 18, 2012
Eurodollar [Member]
Base Rate Loans [Member]
Nova Scotia, Amegy, KeyBank [Member]
Debt Instrument [Line Items]                                                                          
Interest capitalized $ 3,500,000 $ 0 $ 9,013,000 $ 0                                                                  
Revolving 信贷 facility                               100,000,000   350,000,000       45,000,000                              
Borrowing capacity                             65,000,000 50,000,000 125,000,000 90,000,000 155,000,000 40,000,000   45,000,000   50,000,000                          
Amount of current 信贷 facility used to repay former 信贷 facility                               42,000,000                                          
Amount of current 信贷 facility used to repay term loan                               2,500,000                                          
Senior unsecured notes issued                                                 50,000,000 250,000,000 300,000,000                    
Applicable rate, minimum                                                       0.50% 0.50% 0.75% 1.00% 1.50% 1.50% 1.75% 2.00%    
Applicable rate, maximum                                                       1.50% 1.50% 1.50% 1.75% 2.50% 2.50% 2.50% 2.75%    
Commitment fee percentage                                         0.375% 0.50%                              
Stated interest rate         7.75%     7.75%       5.82%                         7.75% 7.75%                      
Credit facility outstanding                                             0                            
传播基础                                                                       0.50% 1.00%
Debt instrument, description of rate                                       LIBOR01                                  
Debt covenant ratio for reasonable transactions 2.00   2.00                                                                    
Debt covenant ratio for EBITDAX 3.00   3.00                                                                    
Building Loan Outstanding Amount Of Building Loan Refinanced         300,000,000 [1] 300,000,000 [1]   300,000,000 [1]   2,033,000 [2] 2,143,000 [2] 2,400,000                                                  
Loan, periodic payment                   22,000                                                      
发行的债券             50,000,000 250,000,000                                                          
Redemption of principal amount plus aggregate net proceeds                 100.00%       35.00%                                                
Percentage of notes required to be outstanding for redemption                           65.00%                                              
Discount issue price, price               98.534%                                                          
Premium issue price, percent             101.00%                                                            
Unamortized discount 3,300,000   3,300,000         3,700,000                                                          
Effective interest rate             7.531% 8.00%                                                          
Unamortized premium $ 400,000   $ 400,000       $ 500,000                                                            
[1] On 10月ober 17, 2012, the Company issued $250.0 million in aggregate principal amount of 10月ober Notes to qualified institutional buyers pursuant to Rule 144A under the Securities Act and to certain non-U.S. persons in accordance with Regulation S under the Securities Act, (the "10月ober Notes Offering") under an indenture among the Company, its subsidiary guarantors and Wells Fargo Bank, National Association, as the trustee, (the "senior note indenture"). On 12月ember 21, 2012, the Company issued an additional $50.0 million in aggregate principal amount of 12月ember Notes to qualified institutional buyers pursuant to Rule 144A under the Securities Act and to certain non-U.S. persons in accordance with Regulation S under the Securities Act ("the 12月ember Notes Offering"). The 12月ember Notes were issued as additional securities under the senior note indenture. The 10月ober Notes Offering and the 12月ember Notes Offering are collectively referred to as the "Notes Offerings". The Company used a portion of the net proceeds from the 10月ober Notes Offering to repay all amounts outstanding at such time under its revolving 信贷 facility. The Company used the remaining net proceeds of 10月ober Notes Offering and the net proceeds of the 12月ember Notes Offering for general corporate purposes, which included funding a portion of its 2013 capital development plan. Under the senior note indenture, interest on the Notes accrues at a rate of 7.75% per annum on the outstanding principal amount from 10月ober 17, 2012, payable semi-annually on May 1 and November 1 of each year, commencing on May 1, 2013. The Notes are the Company's senior unsecured obligations and rank equally in the right of payment with all of the Company's other senior indebtedness and senior in right of payment to any future subordinated indebtedness. All of the Company's existing and future restricted subsidiaries that guarantee the Company's secured revolving 信贷 facility or certain other debt guarantee the Notes; provided, 然而, that the Notes are not guaranteed by Grizzly Holdings, 公司. and will not be guaranteed by any of the Company's future unrestricted subsidiaries. The Company may redeem some or all of the Notes at any time on or after November 1, 2016, at the redemption prices listed in the senior note indenture. Prior to November 1, 2016, the Company may redeem the Notes at a price equal to 100% of the principal amount plus a “make-whole” premium. 除了, prior to November 1, 2015, the Company may redeem up to 35% of the aggregate principal amount of the Notes with the net proceeds of certain equity offerings, provided that at least 65% of the aggregate principal amount of the Notes initially issued remains outstanding immediately after such redemption.
[2] 2011年3月, the Company entered into a new building loan agreement for the office building it occupies in 俄克拉何马州 City, 俄克拉何马州. The new loan agreement refinanced the $2.4 million outstanding under the previous building loan agreement. The new agreement matures in February 2016 and bears interest at the rate of 5.每年82%. The new building loan requires monthly interest and principal payments of approximately $22,000 and is collateralized by the 俄克拉何马州 City office building and associated land.