7Baggers
Quarterly
Annual
    Unit: USD2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 
      
    		                                           
      assets
    		                                           
      current assets
    		                                           
      cash and cash equivalents
    		2,864,000 2,519,000 2,424,000 2,519,000 20,963,000 26,669,000 40,456,000 70,282,000 56,030,000 46,666,000 19,150,000 4,307,000 838,000 12,158,000 6,653,000 8,876,000 3,264,000 1,043,000 3,789,000 1,796,000 3,057,000 1,600,000 3,040,000 8,119,000 1,966,000 3,906,000 4,247,000 5,414,000 4,441,000 7,071,000 6,297,000 5,642,000 8,911,000 7,487,000 14,005,000 9,772,000 4,848,000 9,770,000 5,013,000 13,233,000 5,570,000 6,048,000 8,368,000 
      restricted cash
    		3,304,000                                           
      accrued revenue and accounts receivable
    		64,367,000 80,025,000 77,937,000                                         
      commodity derivative assets
    		8,507,000 2,111,000 564,000 1,824,000 18,147,000 10,967,000 30,741,000 38,273,000 21,218,000 50,288,000 68,367,000 31,472,000  316,000     315,000 1,149,000 8,569,000 45,522,000 96,278,000 14,790,000 33,054,000 24,441,000 4,012,000 37,970,000    94,000 4,724,000 13,329,000   13,285,000 13,412,000 46,851,000 48,260,000 34,336,000 8,294,000 38,913,000 
      prepaid expenses and other current assets
    		6,131,000 8,731,000 7,356,000 3,108,000 2,026,000 3,057,000 2,540,000 2,319,000 1,979,000 2,621,000 2,087,000 1,905,000 2,238,000 2,457,000 1,866,000 1,956,000 1,503,000 2,116,000 1,393,000 1,668,000 1,798,000 2,329,000 1,995,000 1,168,000 1,472,000 1,977,000 1,543,000 1,001,000 1,205,000 1,640,000 1,472,000 1,212,000 1,269,000 1,765,000 1,121,000 1,036,000 1,718,000 2,160,000 1,052,000 856,000 1,404,000 1,863,000 10,523,000 
      total current assets
    		85,173,000 93,386,000 88,281,000 78,544,000 109,255,000 114,518,000 146,165,000 193,127,000 166,952,000 171,939,000 183,790,000 173,381,000 160,963,000 155,500,000 107,982,000 107,974,000 93,068,000 71,540,000 64,785,000 66,521,000 61,921,000 221,422,000 159,777,000 102,291,000 121,334,000 126,282,000 113,129,000 157,533,000 117,128,000 107,739,000 100,624,000 87,643,000 83,799,000 94,836,000 90,100,000 78,989,000 84,242,000 78,910,000 97,286,000 103,595,000 93,657,000 70,420,000 108,598,000 
      property and equipment
    		                                           
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 1,035,486 and 973,028 at september 30, 2025 and december 31, 2024, respectively
    		3,174,675,000                                           
      accumulated depletion and impairment
    		-1,999,325,000 -1,989,690,000 -1,980,770,000                                         
      oil and natural gas properties
    		1,175,350,000 1,164,286,000 1,140,236,000 1,131,997,000 1,095,265,000 1,094,411,000 1,076,931,000 1,064,495,000 1,058,324,000 1,068,183,000 1,077,844,000 1,086,988,000 1,097,246,000 1,108,756,000 1,123,283,000 1,131,896,000 1,145,188,000 1,161,673,000 1,154,198,000 1,170,486,000 1,190,542,000 1,209,202,000 1,352,982,000 1,431,928,000 1,454,619,000 1,580,115,000 1,584,033,000 1,575,496,000 1,630,203,000 1,554,444,000 1,526,853,000 1,480,771,000 1,155,752,000 1,142,649,000 1,097,384,000 1,044,143,000 1,050,451,000 1,045,157,000 937,885,000 938,415,000 1,051,860,000 1,045,537,000 1,161,512,000 
      other property and equipment, net of accumulated depreciation of 15,502 and 14,551 at september 30, 2025 and december 31, 2024, respectively
    		1,255,000                                           
      net property and equipment
    		1,176,605,000 1,165,794,000 1,141,904,000 1,134,041,000 1,096,296,000 1,095,287,000 1,077,869,000 1,065,502,000 1,059,414,000 1,069,217,000 1,078,955,000 1,088,247,000 1,098,228,000 1,109,878,000 1,124,545,000 1,133,336,000 1,146,426,000 1,163,066,000 1,155,690,000 1,172,136,000 1,192,347,000 1,211,171,000 1,355,114,000 1,434,228,000 1,457,054,000 1,582,434,000 1,586,386,000 1,575,881,000 1,630,634,000 1,554,912,000 1,527,368,000 1,481,330,000 1,156,271,000 1,143,191,000 1,097,963,000 1,044,671,000 1,050,588,000 1,045,308,000 938,053,000 938,594,000 1,051,927,000 1,046,099,000 1,162,610,000 
      deferred charges and other long-term assets
    		8,602,000 8,709,000 8,650,000 6,321,000 7,266,000 7,091,000 7,641,000 8,255,000 7,615,000 9,197,000 8,919,000 9,454,000 11,537,000 7,315,000 6,042,000 6,611,000 7,170,000 7,641,000 5,674,000 5,321,000 5,748,000 6,245,000 7,676,000 8,689,000 17,425,000 15,839,000 12,372,000 16,710,000 6,497,000 6,813,000 7,986,000 7,478,000 6,000,000 12,059,000 11,659,000 5,167,000 2,402,000 2,612,000 10,504,000 19,247,000 15,862,000 2,050,000 3,083,000 
      total assets
    		1,270,380,000 1,267,889,000 1,238,835,000 1,218,906,000 1,212,817,000 1,216,896,000 1,231,675,000 1,266,884,000 1,233,981,000 1,250,353,000 1,271,664,000 1,271,082,000 1,270,728,000 1,272,693,000 1,238,569,000 1,247,921,000 1,246,664,000 1,242,247,000 1,226,149,000 1,243,978,000 1,260,016,000 1,438,838,000 1,522,567,000 1,545,208,000 1,595,813,000 1,724,555,000 1,711,887,000 1,750,124,000 1,754,259,000 1,669,464,000 1,635,978,000 1,576,451,000 1,246,070,000 1,250,086,000 1,199,722,000 1,128,827,000 1,137,232,000 1,126,830,000 1,045,843,000 1,061,436,000 1,161,446,000 1,118,569,000 1,274,291,000 
      liabilities, mezzanine equity, and equity
    		                                           
      current liabilities
    		                                           
      accounts payable
    		2,627,000 6,877,000 4,800,000 5,946,000 3,742,000 5,632,000 5,844,000 6,270,000 4,502,000 5,601,000 4,963,000 6,773,000 3,044,000 3,586,000 2,380,000 5,944,000 2,206,000 3,320,000 2,219,000 3,407,000 3,537,000 2,870,000 563,000 5,309,000 4,574,000 5,911,000 6,639,000 4,149,000 14,595,000 2,952,000 2,282,000 2,464,000 3,659,000 3,533,000 3,949,000 4,142,000 4,833,000 5,160,000 4,127,000 5,036,000 28,108,000 35,332,000 31,080,000 
      accrued liabilities
    		13,898,000 12,504,000 11,819,000 17,242,000 13,913,000 10,600,000 7,380,000 17,003,000 13,597,000 10,023,000 6,724,000 19,729,000 18,111,000 13,103,000 5,960,000 17,589,000 13,246,000 9,925,000 8,382,000 15,568,000 12,476,000 10,337,000 8,823,000 22,702,000 17,384,000 39,105,000 38,977,000 60,089,000 58,868,000 52,576,000 35,292,000 52,631,000 38,336,000 39,541,000 38,704,000 50,952,000 39,394,000 36,475,000 48,789,000 58,003,000 18,227,000 15,233,000 12,165,000 
      commodity derivative liabilities
    		122,000 7,072,000 46,285,000 3,852,000  9,414,000 12,782,000 1,229,000 14,513,000   3,243,000 48,127,000 106,080,000 138,028,000 51,544,000 114,451,000 80,047,000 44,447,000 19,318,000 3,662,000 311,000  159,000  45,000 1,967,000  40,801,000 36,778,000 17,290,000 4,222,000   4,941,000 16,237,000 137,000 1,835,000    1,108,000 37,000 
      other current liabilities
    		2,853,000 2,528,000 2,428,000 3,383,000 1,803,000 1,416,000 1,374,000 1,334,000 1,173,000 1,136,000 1,098,000 989,000 2,249,000 2,048,000 2,070,000 2,063,000 1,635,000 1,792,000 1,736,000 1,654,000 1,623,000 1,634,000 1,412,000 1,633,000 1,058,000 957,000 926,000 528,000 459,000 391,000 350,000 417,000 302,000 203,000          
      total current liabilities
    		19,500,000 28,981,000 65,332,000 30,423,000 19,458,000 27,062,000 27,380,000 25,836,000 33,785,000 16,760,000 12,785,000 30,734,000 71,531,000 124,817,000 148,438,000 77,140,000 131,538,000 95,084,000 56,784,000 39,947,000 21,298,000 15,152,000 10,798,000 29,803,000 23,016,000 45,973,000 48,509,000 64,766,000 114,723,000 92,697,000 55,214,000 59,734,000 42,297,000 43,277,000 47,594,000 71,331,000 44,364,000 43,470,000 52,916,000 63,039,000 46,335,000 65,497,000 95,969,000 
      long–term liabilities
    		                                           
      credit facility
    		95,000,000 99,000,000 63,000,000 25,000,000        10,000,000 60,000,000 86,000,000 69,000,000 89,000,000 99,000,000 96,000,000 111,000,000 121,000,000 147,000,000 323,000,000 388,000,000 394,000,000 413,000,000 436,000,000 435,000,000 410,000,000 402,000,000 421,000,000 436,000,000 388,000,000 362,000,000 393,000,000 388,000,000 316,000,000 299,000,000 285,000,000 116,000,000 66,000,000 43,000,000 6,000,000  
      accrued incentive compensation
    		864,000 788,000 638,000 1,234,000 1,082,000 911,000 802,000 1,699,000 1,368,000 1,086,000 801,000 1,884,000 1,414,000 1,063,000 682,000 838,000 565,000 371,000 243,000 766,000 668,000 580,000 543,000 2,110,000 1,750,000 1,395,000 1,028,000 1,813,000 1,496,000 3,202,000 4,079,000 3,648,000 2,883,000 2,295,000 1,873,000 1,485,000 6,300,000 5,264,000 3,849,000 7,902,000 8,401,000 6,247,000 3,714,000 
      asset retirement obligations
    		19,950,000 19,728,000 19,465,000 19,286,000 18,751,000 19,291,000 19,078,000 19,030,000 15,497,000 15,283,000 15,089,000 15,030,000 12,588,000 12,599,000 12,702,000 12,561,000 12,412,000 17,741,000 17,503,000 17,377,000 16,972,000 16,717,000 16,225,000 15,653,000 15,584,000 15,377,000 15,146,000 14,948,000 14,669,000 14,589,000 14,382,000 14,092,000 13,909,000 13,627,000 13,599,000 13,350,000 11,366,000 11,240,000 10,972,000 10,585,000 10,181,000 9,908,000 9,621,000 
      other long-term liabilities
    		4,882,000 5,010,000 5,143,000 1,943,000 2,217,000 2,496,000 2,755,000 2,893,000 3,178,000 3,514,000 3,709,000 3,606,000 1,782,000 2,104,000 5,305,000 2,752,000 3,223,000 3,533,000 3,829,000 4,073,000 4,355,000 4,609,000 4,914,000 6,820,000 6,781,000 81,750,000 78,292,000 55,973,000 92,096,000 60,079,000 38,876,000 19,171,000            
      total liabilities
    		145,167,000 165,273,000 173,870,000 89,467,000 44,516,000 56,431,000 55,873,000 49,539,000 60,598,000 37,112,000 33,436,000 61,270,000 149,140,000 230,005,000 240,420,000 184,292,000 261,219,000 218,193,000 189,359,000 185,011,000 197,022,000 364,796,000 420,480,000 448,404,000 460,131,000 580,540,000 577,998,000 547,500,000 636,950,000 598,832,000 549,498,000 485,908,000 427,681,000 452,199,000 451,724,000 403,166,000 364,264,000 349,552,000 186,791,000 150,783,000 111,250,000 93,929,000 502,154,000 
      commitments and contingencies
    		                                           
      mezzanine equity
    		                                           
      partners' equity – series b cumulative convertible preferred units, 14,711 units outstanding at september 30, 2025 and december 31, 2024
    		300,478,000                                           
      equity
    		                                           
      partners' equity – general partner interest
    		                                           
      partners' equity – common units, 211,854 and 210,695 units outstanding at september 30, 2025 and december 31, 2024, respectively
    		824,735,000                                           
      total equity
    		824,735,000 802,138,000 764,487,000 828,961,000 867,823,000 859,987,000 875,324,000 918,208,000 875,022,000 914,880,000 939,867,000 911,451,000 823,227,000 744,327,000 699,788,000 765,268,000 687,084,000 725,693,000 738,429,000 760,606,000 764,633,000 775,681,000 803,726,000 798,443,000 837,321,000 845,654,000 835,528,000 904,263,000 818,948,000 772,271,000 785,836,000 768,121,000 791,297,000 770,802,000 713,853,000 671,646,000 718,953,000 723,277,000 805,051,000 831,491,000 929,260,000 903,736,000 651,248,000 
      total liabilities, mezzanine equity, and equity
    		1,270,380,000 1,267,889,000 1,238,835,000 1,218,906,000 1,212,817,000 1,216,896,000 1,231,675,000 1,266,884,000 1,233,981,000 1,250,353,000 1,271,664,000 1,271,082,000 1,270,728,000 1,272,693,000 1,238,569,000 1,247,921,000 1,246,664,000 1,242,247,000 1,226,149,000 1,243,978,000 1,260,016,000 1,438,838,000 1,522,567,000 1,545,208,000 1,595,813,000 1,724,555,000 1,711,887,000 1,750,124,000 1,754,259,000 1,669,464,000 1,635,978,000 1,576,451,000            
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 1,015,395 and 973,028 at june 30, 2025 and december 31, 2024, respectively
    		 3,153,976,000                                          
      other property and equipment, net of accumulated depreciation of 15,238 and 14,551 at june 30, 2025 and december 31, 2024, respectively
    		 1,508,000                                          
      partners' equity – series b cumulative convertible preferred units, 14,711 units outstanding at june 30, 2025 and december 31, 2024
    		 300,478,000                                          
      partners' equity – common units, 211,842 and 210,695 units outstanding at june 30, 2025 and december 31, 2024, respectively
    		 802,138,000                                          
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 989,725 and 973,028 at march 31, 2025 and december 31, 2024, respectively
    		  3,121,006,000                                         
      other property and equipment, net of accumulated depreciation of 14,970 and 14,551 at march 31, 2025 and december 31, 2024, respectively
    		  1,668,000                                         
      partners' equity – series b cumulative convertible preferred units, 14,711 units outstanding at march 31, 2025 and december 31, 2024
    		  300,478,000                                         
      partners' equity – common units, 211,630 and 210,695 units outstanding at march 31, 2025 and december 31, 2024, respectively
    		  764,487,000                                         
      accounts receivable
    		   71,093,000 68,119,000 73,825,000 72,428,000 82,253,000 87,725,000 72,364,000 94,186,000 135,697,000 157,887,000 140,569,000 99,463,000 97,142,000 88,301,000 68,381,000 59,288,000 61,908,000 48,497,000 45,480,000 58,464,000 78,214,000 84,842,000 95,958,000 103,327,000 113,148,000 111,482,000 99,028,000 92,855,000 80,695,000 68,895,000 72,255,000 74,974,000 68,181,000 64,391,000 53,568,000 44,370,000 41,246,000 52,347,000 54,215,000 50,794,000 
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 973,028 and 890,338 at december 31, 2024 and 2023, respectively
    		   3,105,457,000                                        
      accumulated depreciation, depletion, amortization, and impairment
    		   -1,973,460,000 -1,962,614,000 -1,983,801,000 -1,972,524,000 -1,961,899,000 -1,950,326,000 -1,938,140,000 -1,927,896,000 -1,916,919,000 -1,904,294,000 -1,892,235,000 -1,880,493,000 -1,869,731,000 -1,855,218,000 -2,025,503,000 -2,009,867,000 -1,987,332,000 -1,967,661,000 -1,947,455,000 -1,938,773,000 -1,870,412,000 -1,948,866,000 -1,921,674,000 -1,893,461,000 -1,865,692,000 -1,830,906,000 -1,813,070,000 -1,794,006,000 -1,766,842,000 -1,736,695,000 -1,707,534,000 -1,679,267,000 -1,652,930,000 -1,630,119,000 -1,601,401,000 -1,571,587,000 -1,543,796,000    
      other property and equipment, net of accumulated depreciation of 14,551 and 14,163 at december 31, 2024 and 2023, respectively
    		   2,044,000                                        
      long-term liabilities
    		                                           
      partners' equity — series b cumulative convertible preferred units, 14,711 and 14,711 units outstanding at december 31, 2024 and 2023, respectively
    		   300,478,000                                        
      partners' equity — general partner interest
    		                                           
      partners' equity — common units, 210,695 and 209,991 units outstanding at december 31, 2024 and 2023, respectively
    		   828,961,000                                        
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 943,916 and 890,338 at september 30, 2024 and december 31, 2023, respectively
    		    3,057,879,000                                       
      other property and equipment, net of accumulated depreciation of 14,453 and 14,163 at september 30, 2024 and december 31, 2023, respectively
    		    1,031,000                                       
      partners' equity – series b cumulative convertible preferred units, 14,711 units outstanding at september 30, 2024 and december 31, 2023
    		    300,478,000                                       
      partners' equity – common units, 210,688 and 209,991 units outstanding at september 30, 2024 and december 31, 2023, respectively
    		    867,823,000                                       
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 929,291 and 890,338 at june 30, 2024 and december 31, 2023, respectively
    		     3,078,212,000                                      
      other property and equipment, net of accumulated depreciation of 14,349 and 14,163 at june 30, 2024 and december 31, 2023, respectively
    		     876,000                                      
      partners' equity – series b cumulative convertible preferred units, 14,711 units outstanding at june 30, 2024 and december 31, 2023
    		     300,478,000                                      
      partners' equity – common units, 210,682 and 209,991 units outstanding at june 30, 2024 and december 31, 2023, respectively
    		     859,987,000                                      
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 913,031 and 890,338 at march 31, 2024 and december 31, 2023, respectively
    		      3,049,455,000                                     
      other property and equipment, net of accumulated depreciation of 14,270 and 14,163 at march 31, 2024 and december 31, 2023, respectively
    		      938,000                                     
      partners' equity – series b cumulative convertible preferred units, 14,711 units outstanding at march 31, 2024 and december 31, 2023
    		      300,478,000                                     
      partners' equity – common units, 210,656 and 209,991 units outstanding at march 31, 2024 and december 31, 2023, respectively
    		      875,324,000                                     
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 890,338 and 909,344 at december 31, 2023 and 2022, respectively
    		       3,026,394,000                                    
      other property and equipment, net of accumulated depreciation of 14,163 and 13,461 at december 31, 2023 and 2022, respectively
    		       1,007,000                                    
      partners' equity — series b cumulative convertible preferred units, 14,711 and 14,711 units outstanding at december 31, 2023 and 2022, respectively
    		       299,137,000                                    
      partners' equity — common units, 209,991 and 209,407 units outstanding at december 31, 2023 and 2022, respectively
    		       918,208,000                                    
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 898,768 and 909,344 at september 30, 2023 and december 31, 2022, respectively
    		        3,008,650,000                                   
      other property and equipment, net of accumulated depreciation of 13,988 and 13,461 at september 30, 2023 and december 31, 2022, respectively
    		        1,090,000                                   
      partners' equity – series b cumulative convertible preferred units, 14,711 units outstanding at september 30, 2023 and december 31, 2022
    		        298,361,000                                   
      partners' equity – common units, 209,986 and 209,407 units outstanding at september 30, 2023 and december 31, 2022, respectively
    		        875,022,000                                   
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 897,836 and 909,344 at june 30, 2023 and december 31, 2022, respectively
    		         3,006,323,000                                  
      other property and equipment, net of accumulated depreciation of 13,807 and 13,461 at june 30, 2023 and december 31, 2022, respectively
    		         1,034,000                                  
      partners' equity – series b cumulative convertible preferred units, 14,711 units outstanding at june 30, 2023 and december 31, 2022, respectively
    		         298,361,000                                  
      partners' equity – common units, 209,968 and 209,407 units outstanding at june 30, 2023 and december 31, 2022, respectively
    		         914,880,000                                  
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 909,344 and 909,344 at march 31, 2023 and december 31, 2022, respectively
    		          3,005,740,000                                 
      other property and equipment, net of accumulated depreciation of 13,630 and 13,461 at march 31, 2023 and december 31, 2022, respectively
    		          1,111,000                                 
      partners' equity – series b cumulative convertible preferred units, 14,711 units outstanding at march 31, 2023 and december 31, 2022, respectively
    		          298,361,000                                 
      partners' equity – common units, 209,963 and 209,407 units outstanding at march 31, 2023 and december 31, 2022, respectively
    		          939,867,000                                 
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 909,344 and 937,395 at december 31, 2022 and 2021, respectively
    		           3,003,907,000                                
      other property and equipment, net of accumulated depreciation of 13,461 and 12,931 at december 31, 2022 and 2021, respectively
    		           1,259,000                                
      partners' equity — series b cumulative convertible preferred units, 14,711 and 14,711 units outstanding at december 31, 2022 and 2021, respectively
    		           298,361,000                                
      partners' equity — common units, 209,407 and 208,666 units outstanding at december 31, 2022 and 2021, respectively
    		           911,451,000                                
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 925,839 and 937,395 at september 30, 2022 and december 31, 2021, respectively
    		            3,001,540,000                               
      other property and equipment, net of accumulated depreciation of 13,299 and 12,931 at september 30, 2022 and december 31, 2021, respectively
    		            982,000                               
      partners' equity – series b cumulative convertible preferred units, 14,711 units outstanding at september 30, 2022 and december 31, 2021, respectively
    		            298,361,000                               
      partners' equity – common units, 209,402 and 208,666 units outstanding at september 30, 2022 and december 31, 2021, respectively
    		            823,227,000                               
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 925,707 and 937,395 at june 30, 2022 and december 31, 2021, respectively
    		             3,000,991,000                              
      other property and equipment, net of accumulated depreciation of 13,150 and 12,931 at june 30, 2022 and december 31, 2021, respectively
    		             1,122,000                              
      partners' equity – series b cumulative convertible preferred units, 14,711 units outstanding at june 30, 2022 and december 31, 2021, respectively
    		             298,361,000                              
      partners' equity – common units, 209,399 and 208,666 units outstanding at june 30, 2022 and december 31, 2021, respectively
    		             744,327,000                              
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 937,395 and 937,395 at march 31, 2022 and december 31, 2021, respectively
    		              3,003,776,000                             
      other property and equipment, net of accumulated depreciation of 13,000 and 12,931 at march 31, 2022 and december 31, 2021, respectively
    		              1,262,000                             
      partners' equity – series b cumulative convertible preferred units, 14,711 units outstanding at march 31, 2022 and december 31, 2021, respectively
    		              298,361,000                             
      partners' equity – common units, 209,392 and 208,666 units outstanding at march 31, 2022 and december 31, 2021, respectively
    		              699,788,000                             
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 937,395 and 937,464 at december 31, 2021 and 2020, respectively
    		               3,001,627,000                            
      other property and equipment, net of accumulated depreciation of 12,931 and 12,292 at december 31, 2021 and 2020, respectively
    		               1,440,000                            
      partners' equity — series b cumulative convertible preferred units, 14,711 and 14,711 units outstanding at december 31, 2021 and 2020, respectively
    		               298,361,000                            
      partners' equity — common units, 208,666 and 206,749 units outstanding at december 31, 2021 and 2020, respectively
    		               765,268,000                            
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 947,538 and 937,464 at september 30, 2021 and december 31, 2020, respectively
    		                3,000,406,000                           
      other property and equipment, net of accumulated depreciation of 12,778 and 12,292 at september 30, 2021 and december 31, 2020, respectively
    		                1,238,000                           
      partners' equity – series b cumulative convertible preferred units, 14,711 units outstanding at september 30, 2021 and december 31, 2020
    		                298,361,000                           
      partners' equity – common units, 208,660 and 206,749 units outstanding at september 30, 2021 and december 31, 2020, respectively
    		                687,084,000                           
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 947,509 and 937,464 at june 30, 2021 and december 31, 2020, respectively
    		                 3,187,176,000                          
      other property and equipment, net of accumulated depreciation of 12,613 and 12,292 at june 30, 2021 and december 31, 2020, respectively
    		                 1,393,000                          
      partners' equity – series b cumulative convertible preferred units, 14,711 units outstanding at june 30, 2021 and december 31, 2020
    		                 298,361,000                          
      partners' equity – common units, 208,637 and 206,749 units outstanding at june 30, 2021 and december 31, 2020, respectively
    		                 725,693,000                          
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 937,464 at march 31, 2021 and december 31, 2020
    		                  3,164,065,000                         
      other property and equipment, net of accumulated depreciation of 12,453 and 12,292 at march 31, 2021 and december 31, 2020, respectively
    		                  1,492,000                         
      partners' equity – series b cumulative convertible preferred units, 14,711 units outstanding at march 31, 2021 and december 31, 2020
    		                  298,361,000                         
      partners' equity – common units, 207,542 and 206,749 units outstanding at march 31, 2021 and december 31, 2020, respectively
    		                  738,429,000                         
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 937,464 and 1,073,447 at december 31, 2020 and 2019, respectively
    		                   3,157,818,000                        
      other property and equipment, net of accumulated depreciation of 12,292 and 11,622 at december 31, 2020 and 2019, respectively
    		                   1,650,000                        
      partners' equity — series b cumulative convertible preferred units, 14,711 and 14,711 units outstanding at december 31, 2020 and 2019, respectively
    		                   298,361,000                        
      partners' equity — common units, 206,749 and 205,960 units outstanding at december 31, 2020 and 2019, respectively
    		                   760,606,000                        
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 947,229 and 1,073,447 at september 30, 2020 and december 31, 2019, respectively
    		                    3,158,203,000                       
      other property and equipment, net of accumulated depreciation of 12,132 and 11,622 at september 30, 2020 and december 31, 2019, respectively
    		                    1,805,000                       
      partners' equity – series b cumulative convertible preferred units, 14,711 units outstanding at september 30, 2020 and december 31, 2019
    		                    298,361,000                       
      partners' equity – common units, 206,738 and 205,960 units outstanding at september 30, 2020 and december 31, 2019, respectively
    		                    764,633,000                       
      assets held for sale
    		                     126,491,000                      
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 946,232 and 1,073,447 at june 30, 2020 and december 31, 2019, respectively
    		                     3,156,657,000                      
      other property and equipment, net of accumulated depreciation of 11,963 and 11,622 at june 30, 2020 and december 31, 2019, respectively
    		                     1,969,000                      
      partners' equity – series b cumulative convertible preferred units, 14,711 units outstanding at june 30, 2020 and december 31, 2019
    		                     298,361,000                      
      partners' equity – common units, 206,709 and 205,960 units outstanding at june 30, 2020 and december 31, 2019, respectively
    		                     775,681,000                      
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 1,073,475 and 1,073,447 at march 31, 2020 and december 31, 2019, respectively
    		                      3,291,755,000                     
      other property and equipment, net of accumulated depreciation of 11,792 and 11,622 at march 31, 2020 and december 31, 2019, respectively
    		                      2,132,000                     
      partners' equity – series b cumulative convertible preferred units, 14,711 units outstanding at march 31, 2020 and december 31, 2019
    		                      298,361,000                     
      partners' equity – common units, 206,695 and 205,960 units outstanding at march 31, 2020 and december 31, 2019, respectively
    		                      803,726,000                     
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 1,073,447 and 1,063,883 at december 31, 2019 and 2018, respectively
    		                       3,302,340,000                    
      other property and equipment, net of accumulated depreciation of 11,622 and 11,048 at december 31, 2019 and 2018, respectively
    		                       2,300,000                    
      partners' equity — series b cumulative convertible preferred units, 14,711 and 14,711 units outstanding at december 31, 2019 and 2018, respectively
    		                       298,361,000                    
      partners' equity — common units, 205,960 and 108,363 units outstanding at december 31, 2019 and 2018, respectively
    		                       798,443,000                    
      partners' equity — subordinated units, zero and 96,329 units outstanding at december 31, 2019 and 2018, respectively
    		                                           
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 1,091,660 and 1,063,883 at september 30, 2019 and december 31, 2018, respectively
    		                        3,403,485,000                   
      other property and equipment, net of accumulated depreciation of 11,450 and 11,048 at september 30, 2019 and december 31, 2018, respectively
    		                        2,435,000                   
      partners' equity – series b cumulative convertible preferred units, 14,711 units outstanding at september 30, 2019 and december 31, 2018
    		                        298,361,000                   
      partners' equity – common units, 205,952 and 108,363 units outstanding at september 30, 2019 and december 31, 2018, respectively
    		                        837,321,000                   
      partners' equity – subordinated units, zero and 96,329 units outstanding at september 30, 2019 and december 31, 2018, respectively
    		                                           
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 1,089,576 and 1,063,883 at june 30, 2019 and december 31, 2018, respectively
    		                         3,501,789,000                  
      other property and equipment, net of accumulated depreciation of 11,267 and 11,048 at june 30, 2019 and december 31, 2018, respectively
    		                         2,319,000                  
      partners' equity – series b cumulative convertible preferred units, 14,711 and 14,711 units outstanding at june 30, 2019 and december 31, 2018, respectively
    		                         298,361,000                  
      partners' equity – common units, 205,956 and 108,363 units outstanding at june 30, 2019 and december 31, 2018, respectively
    		                         845,654,000                  
      partners' equity – subordinated units, zero and 96,329 units outstanding at june 30, 2019 and december 31, 2018, respectively
    		                                           
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 1,084,737 and 1,063,883 at march 31, 2019 and december 31, 2018, respectively
    		                          3,477,494,000                 
      other property and equipment, net of accumulated depreciation of 11,115 and 11,048 at march 31, 2019 and december 31, 2018, respectively
    		                          2,353,000                 
      partners' equity – series b cumulative convertible preferred units, 14,711 and 14,711 units outstanding at march 31, 2019 and december 31, 2018, respectively
    		                          298,361,000                 
      partners' equity – common units, 109,377 and 108,363 units outstanding at march 31, 2019 and december 31, 2018, respectively
    		                          679,868,000                 
      partners' equity – subordinated units, 96,329 and 96,329 units outstanding at march 31, 2019 and december 31, 2018, respectively
    		                          155,660,000                 
      revenue
    		                                           
      oil and condensate sales
    		                          57,704,000 310,278,000 82,712,000 77,225,000 72,983,000 169,728,000 41,361,000 37,262,000 40,474,000 142,382,000 42,780,000 34,553,000 27,248,000 163,538,000 44,128,000 46,293,000 36,163,000 
      natural gas and natural gas liquids sales
    		                          61,640,000 248,243,000 63,080,000 53,854,000 53,245,000 190,967,000 45,047,000 49,903,000 47,701,000 122,836,000 38,986,000 21,607,000 25,112,000 116,018,000 32,191,000 28,968,000 31,640,000 
      lease bonus and other income
    		                          5,645,000 36,216,000 12,440,000 11,577,000 4,599,000 42,062,000 12,044,000 11,356,000 13,682,000 32,079,000 9,592,000 15,142,000 1,395,000 23,080,000 4,271,000 8,169,000 3,611,000 
      revenue from contracts with customers
    		                          124,989,000 594,737,000 158,232,000 142,656,000 130,827,000             
      gain on commodity derivative instruments
    		                          -41,183,000 14,831,000 -18,514,000 -33,347,000 -16,333,000 26,902,000 -9,341,000 22,003,000 22,725,000 -36,464,000 7,813,000 -30,733,000 10,626,000 90,288,000 56,430,000 -18,627,000 19,647,000 
      total revenue
    		                          83,806,000 609,568,000 139,718,000 109,309,000 114,494,000 429,659,000 89,111,000 120,524,000 124,582,000 260,833,000 99,171,000 40,569,000 64,381,000 392,924,000 137,020,000 64,803,000 91,061,000 
      operating income
    		                                           
      lease operating expense
    		                          5,292,000 18,415,000 4,229,000 4,290,000 4,248,000 17,280,000 4,569,000 4,148,000 4,189,000 18,755,000 5,007,000 4,283,000 4,889,000 21,583,000 4,924,000   
      production costs and ad valorem taxes
    		                          14,592,000 64,364,000 17,641,000 14,373,000 14,925,000 47,474,000 11,549,000 11,863,000 11,902,000 35,464,000 9,228,000 7,012,000 7,062,000 35,767,000 8,175,000 9,819,000 8,256,000 
      exploration expense
    		                          4,000 7,943,000 34,000 6,745,000 3,000 618,000 8,000 46,000 562,000 645,000 6,000 629,000 8,000 2,592,000 1,817,000   
      depreciation, depletion, and amortization
    		                          27,833,000  29,273,000 30,292,000 28,570,000  29,204,000 28,900,000 26,379,000  28,731,000       
      general and administrative
    		                          21,214,000 76,712,000 22,083,000 19,812,000 18,521,000 77,574,000 17,305,000 17,481,000 17,212,000 73,139,000 16,677,000 18,134,000 17,401,000 77,175,000 18,994,000 19,718,000 14,818,000 
      accretion of asset retirement obligations
    		                          277,000 1,103,000 278,000 273,000 269,000 1,026,000 260,000 253,000 247,000 892,000 206,000 200,000 274,000 1,075,000 265,000 269,000 271,000 
      (gain) loss on sale of assets
    		                           -3,000   -2,000 -931,000  -7,000 -924,000 -4,793,000    -4,873,000 4,000   
      total operating expense
    		                          69,212,000 291,187,000 73,538,000 75,785,000 66,534,000 257,575,000 62,895,000 62,684,000 59,567,000 233,364,000 59,855,000 60,047,000 52,771,000 488,779,000 82,321,000 186,027,000 70,868,000 
      income from operations
    		                          14,594,000 318,381,000 66,180,000 33,524,000 47,960,000 172,084,000 26,216,000 57,840,000 65,015,000 27,469,000 39,316,000 -19,478,000 11,610,000 -95,855,000 54,699,000 -121,224,000 20,193,000 
      other income
    		                          -98,000 -2,248,000 60,000 409,000 -1,515,000  -1,000 282,000 69,000  41,000 73,000 34,000 1,593,000 45,000 146,000 50,000 
      interest and investment income
    		                          46,000 183,000 53,000 37,000 33,000 49,000 -9,000 33,000 6,000 656,000 460,000 38,000 153,000 58,000 18,000 27,000 1,000 
      interest expense
    		                          -5,525,000 -20,756,000 -5,518,000 -5,280,000 -4,521,000 -15,694,000 -4,172,000 -3,981,000 -3,507,000 -7,547,000 -2,282,000 -1,443,000 -1,048,000 -6,418,000 -870,000 -1,715,000 -2,945,000 
      total other income
    		                          -5,577,000 -22,821,000 -5,405,000 -4,834,000 -6,003,000 -14,931,000 -4,182,000 -3,666,000 -3,432,000 -7,281,000 -1,781,000 -1,332,000 -861,000 -5,450,000 -807,000 -1,542,000 -2,894,000 
      net income
    		                          9,017,000 295,560,000 60,775,000 28,690,000 41,957,000 157,153,000 22,034,000 54,174,000 61,583,000 20,188,000 37,535,000 -20,810,000 10,749,000 -101,305,000 53,892,000 -122,766,000 17,299,000 
      net (income) loss attributable to noncontrolling interests
    		                           -24,000 -22,000 48,000 -27,000  20,000 16,000 -9,000        -9,000 
      distributions on series a redeemable preferred units
    		                           -25,000   -25,000             
      distributions on series b cumulative convertible preferred units
    		                          -5,250,000 -21,000,000 -5,250,000 -5,250,000 -5,250,000 -1,925,000            
      net income attributable to the general partner and common and subordinated units
    		                          3,767,000 274,511,000 55,503,000 23,488,000 36,655,000  21,388,000 53,518,000 60,460,000         
      allocation of net income:
    		                                           
      general partner interest
    		                                           
      common units
    		                          1,905,000 154,662,000 29,188,000 17,540,000 24,329,000 98,389,000 16,371,000 32,100,000 35,517,000 24,669,000 23,114,000 -7,445,000 8,320,000 -54,326,000    
      subordinated units
    		                          1,862,000 119,849,000 26,315,000 5,948,000 12,326,000 53,756,000 5,017,000 21,418,000 24,943,000 -10,232,000 13,105,000 -14,666,000 623,000 -53,691,000    
      net income attributable to limited partners per common and subordinated unit:
    		                                           
      per common unit
    		                          20 1,460 270 170 230 1,010 160 330 370 260 240 -80 90 -560    
      weighted-average common units outstanding
    		                          109,420,000 106,064,000 106,706,000 105,250,000 103,774,000 97,400,000 101,623,000 97,990,000 96,901,000 96,073,000 95,740,000 96,356,000 96,484,000 96,182,000    
      per subordinated unit
    		                          20 1,250 270 60 130 560 50 220 260 -110 140 -150 10 -560    
      weighted-average subordinated units outstanding
    		                          96,329,000 96,099,000 96,329,000 96,329,000 95,395,000 95,149,000 95,388,000 95,388,000 95,149,000 95,138,000 95,189,000 95,189,000 94,995,000 95,057,000    
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 1,063,883 and 988,720 at december 31, 2018 and 2017, respectively
    		                           3,441,188,000                
      other property and equipment, net of accumulated depreciation of 11,048 and 14,433 at december 31, 2018 and 2017, respectively
    		                           385,000                
      partners' equity — series a redeemable preferred units, zero and 26 units outstanding at december 31, 2018 and 2017, respectively
    		                                           
      partners' equity — series b cumulative convertible preferred units, 14,711 and 14,711 units outstanding at december 31, 2018 and 2017, respectively
    		                           298,361,000                
      partners' equity — common units, 108,363 and 103,456 units outstanding at december 31, 2018 and 2017, respectively
    		                           714,823,000                
      partners' equity — subordinated units, 96,329 and 95,388 units outstanding at december 31, 2018 and 2017, respectively
    		                           189,440,000                
      noncontrolling interests
    		                            707,000 731,000 842,000 867,000 904,000 948,000 1,005,000 1,021,000 1,046,000 1,083,000 1,113,000 1,144,000 2,308,000 2,351,000 2,576,000 
      depreciation, depletion and amortization
    		                           122,653,000    114,534,000    102,487,000  29,202,000 21,721,000 104,298,000 23,288,000 32,235,000 27,891,000 
      impairment of oil and natural gas properties
    		                                   6,775,000  679,000 6,096,000 249,569,000 24,854,000 118,362,000 13,467,000 
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 1,097,373 and 988,720 at september 30, 2018 and december 31, 2017, respectively
    		                            3,461,109,000               
      other property and equipment, net of accumulated depreciation of 14,565 and 14,433 at september 30, 2018 and december 31, 2017, respectively
    		                            431,000               
      partners' equity – series a redeemable convertible preferred units, zero and 26 units outstanding at september 30, 2018 and december 31, 2017, respectively
    		                                           
      partners' equity – series b cumulative convertible preferred units, 14,711 and 14,711 units outstanding at september 30, 2018 and december 31, 2017, respectively
    		                            298,361,000               
      partners' equity – common units, 108,330 and 103,456 units outstanding at september 30, 2018 and december 31, 2017, respectively
    		                            657,603,000               
      partners' equity – subordinated units, 96,329 and 95,388 units outstanding at september 30, 2018 and december 31, 2017, respectively
    		                            160,638,000               
      distributions declared and paid:
    		                                           
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 1,041,363 and 988,720 at june 30, 2018 and december 31, 2017, respectively
    		                             3,367,514,000              
      other property and equipment, net of accumulated depreciation of 14,519 and 14,433 at june 30, 2018 and december 31, 2017, respectively
    		                             468,000              
      partners' equity – series a redeemable convertible preferred units, zero and 26 units outstanding at june 30, 2018 and december 31, 2017, respectively
    		                                           
      partners' equity – series b cumulative convertible preferred units, 14,711 and 14,711 units outstanding at june 30, 2018 and december 31, 2017, respectively
    		                             298,361,000              
      partners' equity – common units, 105,494 and 103,456 units outstanding at june 30, 2018 and december 31, 2017, respectively
    		                             612,502,000              
      partners' equity – subordinated units, 96,329 and 95,388 units outstanding at june 30, 2018 and december 31, 2017, respectively
    		                             159,038,000              
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 1,018,695 and 988,720 at march 31, 2018 and december 31, 2017, respectively
    		                              3,320,859,000             
      other property and equipment, net of accumulated depreciation of 14,471 and 14,433 at march 31, 2018 and december 31, 2017, respectively
    		                              515,000             
      partners' equity – series a redeemable convertible preferred units, zero and 26 units outstanding at march 31, 2018 and december 31, 2017, respectively
    		                                           
      partners' equity – series b cumulative convertible preferred units, 14,711 and 14,711 units outstanding at march 31, 2018 and december 31, 2017, respectively
    		                              300,644,000             
      partners' equity – common units, 104,926 and 103,456 units outstanding at march 31, 2018 and december 31, 2017, respectively
    		                              614,720,000             
      partners' equity – subordinated units, 96,329 and 95,388 units outstanding at march 31, 2018 and december 31, 2017, respectively
    		                              170,274,000             
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 988,720 and 605,736 at december 31, 2017 and 2016, respectively
    		                               3,247,613,000            
      other property and equipment, net of accumulated depreciation of 14,433 and 14,327 at december 31, 2017 and 2016, respectively
    		                               559,000            
      deferred revenue
    		                                  658,000 518,000 3,082,000 3,477,000 3,054,000 3,257,000 3,333,000 3,427,000 3,813,000 
      partners' equity — series a redeemable preferred units, 26 and 53 units outstanding at december 31, 2017 and 2016, respectively
    		                               27,028,000            
      partners' equity — series b cumulative convertible preferred units, 14,711 and 0 units outstanding at december 31, 2017 and 2016, respectively
    		                               295,394,000            
      partners' equity — common units, 103,456 and 95,721 units outstanding at december 31, 2017 and 2016, respectively
    		                               603,116,000            
      partners' equity — subordinated units, 95,388 and 95,164 units outstanding at december 31, 2017 and 2016, respectively
    		                               164,138,000            
      net income attributable to predecessor
    		                                       -450,000    
      net income attributable to noncontrolling interests subsequent to initial public offering
    		                               34,000    12,000  9,000 -2,000 1,260,000  140,000  
      distributions on series a redeemable preferred units subsequent to initial public offering
    		                               -3,117,000            
      net income attributable to the general partner and common and subordinated units subsequent to initial public offering
    		                               152,145,000    14,437,000 36,219,000 -22,111,000 8,943,000 -108,017,000    
      allocation of net income subsequent to initial public offering attributable to:
    		                                           
      distributions declared and paid subsequent to initial public offering:
    		                                           
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 731,978 and 605,736 at september 30, 2017 and december 31, 2016, respectively
    		                                2,892,447,000           
      other property and equipment, net of accumulated depreciation of 14,384 and 14,327 at september 30, 2017 and december 31, 2016, respectively
    		                                519,000           
      liabilities, mezzanine equity and equity
    		                                           
      other long-term liability
    		                                6,592,000           
      partners' equity - convertible redeemable preferred units, 26 and 53 units outstanding at september 30, 2017 and december 31, 2016, respectively
    		                                27,092,000           
      partners' equity - general partner interest
    		                                           
      partners' equity - common units, 103,324 and 95,721 units outstanding at september 30, 2017 and december 31, 2016, respectively
    		                                608,998,000           
      partners' equity - subordinated units, 95,388 and 95,164 units outstanding at september 30, 2017 and december 31, 2016, respectively
    		                                181,395,000           
      total liabilities, mezzanine equity and equity
    		                                1,246,070,000 1,250,086,000 1,199,722,000 1,128,827,000 1,137,232,000 1,126,830,000 1,045,843,000 1,061,436,000 1,161,446,000 1,118,569,000 1,274,291,000 
      distributions on redeemable preferred units
    		                                -666,000 -672,000 -1,114,000         
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 730,435 and 605,736 at june 30, 2017 and december 31, 2016, respectively
    		                                 2,850,183,000          
      other property and equipment, net of accumulated depreciation of 14,341 and 14,327 at june 30, 2017 and december 31, 2016, respectively
    		                                 542,000          
      partners' equity - convertible redeemable preferred units, 26 and 53 units outstanding at june 30, 2017 and december 31, 2016, respectively
    		                                 27,085,000          
      partners' equity - common units, 100,559 and 95,721 units outstanding at june 30, 2017 and december 31, 2016, respectively
    		                                 573,817,000          
      partners' equity - subordinated units, 95,388 and 95,164 units outstanding at june 30, 2017 and december 31, 2016, respectively
    		                                 196,037,000          
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 671,131 and 605,736 at march 31, 2017 and december 31, 2016, respectively
    		                                  2,776,651,000         
      other property and equipment, net of accumulated depreciation of 14,369 and 14,327 at march 31, 2017 and december 31, 2016, respectively
    		                                  579,000         
      partners' equity - convertible redeemable preferred units, 33 and 53 units outstanding at march 31, 2017 and december 31, 2016, respectively
    		                                  34,145,000         
      partners' equity - common units, 97,696 and 95,721 units outstanding at march 31, 2017 and december 31, 2016, respectively
    		                                  520,052,000         
      partners' equity - subordinated units, 95,388 and 95,164 units outstanding at march 31, 2017 and december 31, 2016, respectively
    		                                  192,796,000         
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 605,736 and 524,563 at december 31, 2016 and 2015, respectively
    		                                   2,697,073,000        
      other property and equipment, net of accumulated depreciation of 14,327 and 14,660 at december 31, 2016 and 2015, respectively
    		                                   528,000        
      partners' equity - redeemable preferred units, 53 and 77 units outstanding at december 31, 2016 and 2015, respectively
    		                                   54,015,000        
      partners' equity - common units, 95,721 and 96,162 units outstanding at december 31, 2016 and 2015, respectively
    		                                   489,023,000        
      partners' equity - subordinated units, 95,164 and 95,057 units outstanding at december 31, 2016 and 2015, respectively
    		                                   181,602,000        
      distributions on redeemable preferred units subsequent to initial public offering
    		                                   -5,763,000 -1,324,000 -1,310,000 -1,804,000 -7,522,000    
      allocation of income subsequent to initial public offering attributable to:
    		                                           
      current assets:
    		                                           
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 620,502 and 524,563 at september 30, 2016 and december 31, 2015, respectively
    		                                    2,680,570,000       
      other property and equipment, net of accumulated depreciation of 14,706 and 14,660 at september 30, 2016 and december 31, 2015, respectively
    		                                    137,000       
      current liabilities:
    		                                           
      long-term liabilities:
    		                                           
      mezzanine equity:
    		                                           
      partners' equity - convertible redeemable preferred units, 53 and 77 units outstanding at september 30, 2016 and december 31, 2015, respectively
    		                                    54,015,000       
      equity:
    		                                           
      partners' equity - common units, 95,733 and 96,162 units outstanding at september 30, 2016 and december 31, 2015, respectively
    		                                    510,913,000       
      partners' equity - subordinated units, 95,189 and 95,057 units outstanding at september 30, 2016 and december 31, 2015, respectively
    		                                    206,994,000       
      revenue:
    		                                           
      operating income:
    		                                           
      net (income) loss attributable to predecessor
    		                                         16,849,000  
      net (income) loss attributable to noncontrolling interests subsequent to initial public offering
    		                                    8,000    -3,000   
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 609,783 and 524,563 at june 30, 2016 and december 31, 2015, respectively
    		                                     2,646,558,000      
      other property and equipment, net of accumulated depreciation of 14,693 and 14,660 at june 30, 2016 and december 31, 2015, respectively
    		                                     151,000      
      partners' equity - redeemable preferred units, 53 and 77 units outstanding at june 30, 2016 and december 31, 2015, respectively
    		                                     54,001,000      
      partners' equity - common units, 95,736 and 96,162 units outstanding at june 30, 2016 and december 31, 2015, respectively
    		                                     511,862,000      
      partners' equity - subordinated units, 95,189 and 95,057 units outstanding at june 30, 2016 and december 31, 2015, respectively
    		                                     210,332,000      
      gain on sale of assets
    		                                     -92,000 -4,680,000   -17,000 -7,000 
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 530,580 and 524,563 at march 31, 2016 and december 31, 2015, respectively
    		                                      2,509,472,000     
      other property and equipment, net of accumulated depreciation of 14,676 and 14,660 at march 31, 2016 and december 31, 2015, respectively
    		                                      168,000     
      partners' equity - redeemable preferred units, 53 and 77 units outstanding at march 31, 2016 and december 31, 2015, respectively
    		                                      54,001,000     
      partners' equity - common units, 96,861 and 96,162 units outstanding at march 31, 2016 and december 31, 2015, respectively
    		                                      561,860,000     
      partners' equity - subordinated units, 95,189 and 95,057 units outstanding at march 31, 2016 and december 31, 2015, respectively
    		                                      242,078,000     
      oil and natural gas properties, at cost, using the successful efforts method of accounting, includes unproved properties of 524,563 and 626,376 at december 31, 2015 and 2014, respectively
    		                                       2,482,211,000    
      other property and equipment, net of accumulated depreciation of 14,660 and 12,994 at december 31, 2015 and 2014, respectively
    		                                       179,000    
      accrued distribution payable to predecessor unitholders
    		                                         13,824,000  
      partners' equity - redeemable preferred units, 77 and 157 units outstanding at december 31, 2015 and 2014, respectively
    		                                       79,162,000    
      predecessor equity - common limited partner units, no units and 164,484 units outstanding at december 31, 2015 and 2014, respectively
    		                                           
      partners' equity - common units, 96,162 and no units outstanding at december 31, 2015 and 2014, respectively
    		                                       574,648,000    
      partners' equity - subordinated units, 95,057 and no units outstanding at december 31, 2015 and 2014, respectively
    		                                       255,699,000    
      allocation of loss subsequent to initial public offering attributable to:
    		                                           
      oil and natural gas properties, at cost, on the basis of the successful efforts method of accounting, includes unproved properties of 621,140 and 626,376 at september 30, 2015 and december 31, 2014, respectively
    		                                        2,481,864,000   
      accumulated depreciation, depletion and amortization, including impairment
    		                                        -1,430,004,000 -1,382,428,000 -1,232,584,000 
      other property and equipment, net of accumulated depreciation of 14,687 and 12,994 at september 30, 2015 and december 31, 2014, respectively
    		                                        67,000   
      partners' equity - redeemable preferred units, 118 and 157 units outstanding at september 30, 2015 and december 31, 2014, respectively
    		                                        120,936,000   
      predecessor equity - common limited partner units, no units and 164,484 outstanding at september 30, 2015 and december 31, 2014, respectively
    		                                           
      partners' equity - general partner units
    		                                           
      partners' equity - common limited partner units, 96,186 and no units outstanding at september 30, 2015 and december 31, 2014, respectively
    		                                        621,796,000   
      partners' equity - subordinated limited partner units, 95,057 and no units outstanding at september 30, 2015 and december 31, 2014, respectively
    		                                        305,156,000   
      distributions on preferred units subsequent to initial public offering
    		                                        -2,973,000   
      net income attributable to the general partner and limited partners subsequent to initial public offering
    		                                        50,916,000 -107,587,000  
      common limited partner interests
    		                                        25,608,000 -54,109,000  
      subordinated limited partner interests
    		                                        25,308,000 -53,478,000  
      net income attributable to limited partners per unit:
    		                                           
      per common limited partner unit
    		                                        270 -560 90 
      weighted-average common limited partner units outstanding
    		                                        96,186,000 96,178,000 167,452,000 
      per subordinated limited partner unit
    		                                        270 -560  
      weighted-average subordinated limited partner units outstanding
    		                                        95,057,000 95,057,000  
      oil and natural gas properties, at cost, on the basis of the successful efforts method of accounting, includes unproved properties of 574,727 and 626,376 at june 30, 2015 and december 31, 2014, respectively
    		                                         2,427,965,000  
      other property and equipment, net of accumulated depreciation of 14,124 and 12,994 at june 30, 2015 and december 31, 2014, respectively
    		                                         562,000  
      partners' equity - redeemable preferred units, 118 and 157 units outstanding at june 30, 2015 and december 31, 2014, respectively
    		                                         120,904,000  
      predecessor equity - common limited partner units, no units and 164,484 outstanding at june 30, 2015 and december 31, 2014, respectively
    		                                           
      partners' equity - common limited partner units, 96,186 and no units outstanding at june 30, 2015 and december 31, 2014, respectively
    		                                         607,210,000  
      partners' equity - subordinated limited partner units, 95,057 and no units outstanding at june 30, 2015 and december 31, 2014, respectively
    		                                         294,175,000  
      lease operating expenses and other
    		                                         5,641,000 6,172,000 
      dividends on preferred units subsequent to initial public offering
    		                                         -1,810,000  
      oil and natural gas properties, at cost, on the basis of the successful efforts method of accounting, includes unproved properties of 625,392 and 626,376 at march 31, 2015 and december 31, 2014, respectively
    		                                          2,394,096,000 
      other property and equipment, net of accumulated depreciation of 13,558 and 12,994 at march 31, 2015 and december 31, 2014, respectively
    		                                          1,098,000 
      accrued partners' distribution payable
    		                                          52,724,000 
      credit facilities
    		                                          389,000,000 
      partners' equity - redeemable preferred units, 118 and 157 units outstanding at march 31, 2015 and december 31, 2014, respectively
    		                                          120,889,000 
      partners' equity - common limited partner units, 167,767 and 164,484 units outstanding at march 31, 2015 and december 31, 2014, respectively
    		                                          648,672,000 
      dividends on preferred units
    		                                          -2,909,000 
      net income attributable to the general partner and limited partners
    		                                          14,381,000 
      allocation of net income attributable to:
    		                                           
      common limited partner interest
    		                                          14,381,000 
    The information provided in this report is taken from www.sec.gov and many other data providers. While we have conducted our best efforts to ensure that the parsed data is accurate, we cannot guarantee its accuracy. Please use caution and understand that any consequences of its use are your own responsibility.