7Baggers

ONE Gas, Inc
(NYSE:OGS) 

OGS stock logo

ONE Gas, Inc. operates as a regulated natural gas distribution utility company in the United States. The company operates through three divisions: Oklahoma Natural Gas, Kansas Gas Service, and Texas Gas Service. It provides natural gas distribution services to 2.2 million customers in three states. ...

Founded: 2014
Full Time Employees: 3,600
Sector: Utilities
Industry: Utilities-Regulated Gas
Utilities
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• Market Cap:
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Quarterly
Annual
    Unit: USD2025-12-31 2025-09-30 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 2014-12-31 2014-09-30 2014-06-30 2014-03-31 
                                                    
      total revenues
    		689,372,000 379,125,000 423,741,000 935,190,000 630,703,000 340,398,000 354,137,000 758,320,000 605,917,000 335,816,000 398,114,000 1,032,143,000 818,208,000 359,363,000 428,975,000 971,459,000 593,735,000 273,923,000 315,646,000 625,293,000 484,173,000 244,640,000 273,287,000 528,168,000 452,607,000 248,563,000 290,560,000 661,000,000 464,466,000 238,280,000 292,521,000 638,464,000                 
      yoy
    		9.30% 11.38% 19.65% 23.32% 4.09% 1.36% -11.05% -26.53% -25.95% -6.55% -7.19% 6.25% 37.81% 31.19% 35.90% 55.36% 22.63% 11.97% 15.50% 18.39% 6.97% -1.58% -5.94% -20.10% -2.55% 4.32% -0.67% 3.53%                     
      qoq
    		81.83% -10.53% -54.69% 48.28% 85.28% -3.88% -53.30% 25.15% 80.43% -15.65% -61.43% 26.15% 127.68% -16.23% -55.84% 63.62% 116.75% -13.22% -49.52% 29.15% 97.91% -10.48% -48.26% 16.69% 82.09% -14.45% -56.04% 42.31% 94.92% -18.54% -54.18%                  
      cost of natural gas
    		291,895,000 76,614,000 117,942,000 512,462,000 263,740,000 59,632,000 71,958,000 383,003,000 267,560,000 70,910,000 130,241,000 665,799,000 504,693,000 126,197,000 188,251,000 639,946,000 307,837,000 59,399,000 93,701,000 314,069,000 208,311,000 40,485,000 62,510,000 226,139,000 190,703,000 49,607,000 82,588,000 365,076,000 218,802,000 51,256,000 94,159,000 350,419,000 210,006,000 58,769,000 82,572,000 263,154,000 197,358,000 52,253,000 56,457,000 235,729,000 157,733,000 54,724,000 79,949,000 413,553,000 290,192,000 75,070,000 120,345,000 506,342,000 
      operating expenses
    		                                                
      operations and maintenance
    		155,017,000 137,198,000 130,987,000 135,295,000 144,853,000 130,743,000 121,732,000 132,783,000 141,478,000 121,623,000 118,614,000 126,683,000 132,759,000 113,832,000 110,579,000 115,095,000 129,524,000 105,732,000 103,534,000 110,886,000 122,474,000 100,285,000 103,517,000 104,839,000 118,883,000 100,486,000 101,482,000 108,275,000 109,599,000 96,443,000 102,995,000 102,665,000 110,573,000 95,371,000 101,241,000 109,357,000 114,490,000 99,402,000 97,119,000 106,131,000 109,795,000 98,698,000 99,422,000 106,561,000 111,532,000 101,829,000 103,826,000 103,499,000 
      depreciation and amortization
    		79,305,000 76,933,000 79,314,000 81,704,000 75,452,000 72,126,000 72,549,000 76,572,000 72,584,000 68,435,000 67,547,000 71,264,000 61,065,000 55,234,000 55,043,000 57,137,000 52,945,000 51,150,000 50,872,000 52,266,000 51,983,000 47,998,000 47,387,000 47,513,000 46,135,000 45,471,000 44,943,000 43,846,000 41,095,000 40,344,000 39,757,000 38,890,000 38,596,000 38,423,000 37,851,000 37,019,000 37,339,000 36,241,000 35,565,000 34,684,000 34,431,000 33,956,000 33,006,000 31,630,000 31,727,000 31,217,000 31,318,000 31,460,000 
      general taxes
    		23,423,000 22,999,000 23,643,000 25,230,000 22,348,000 18,448,000 18,473,000 20,102,000 17,160,000 17,645,000 17,690,000 19,166,000 16,112,000 17,048,000 16,533,000 18,524,000 16,425,000 15,835,000 16,437,000 17,727,000 16,380,000 15,193,000 15,265,000 16,473,000 14,915,000 14,222,000 14,656,000 16,184,000 14,115,000 13,996,000 14,567,000 16,200,000 13,707,000 13,799,000 13,973,000 15,746,000 13,033,000 13,403,000 13,161,000 15,747,000 13,287,000 12,897,000 13,139,000 15,782,000 10,907,000 14,287,000 14,537,000 15,524,000 
      total operating expenses
    		257,745,000 237,130,000 233,944,000 242,229,000 242,653,000 221,317,000 212,754,000 229,457,000 231,222,000 207,703,000 203,851,000 217,113,000 209,936,000 186,114,000 182,155,000 190,756,000 198,894,000 172,717,000 170,843,000 180,879,000 190,837,000 163,476,000 166,169,000 168,825,000 179,933,000 160,179,000 161,081,000 168,305,000 164,809,000 150,783,000 157,319,000 157,755,000 162,876,000 147,593,000 153,065,000 162,122,000 164,862,000 149,046,000 145,845,000 156,562,000 157,513,000 145,551,000 145,567,000 153,973,000 154,166,000 147,333,000 149,681,000 150,483,000 
      operating income
    		139,732,000 65,381,000 71,855,000 180,499,000 124,310,000 59,449,000 69,425,000 145,860,000 107,135,000 57,203,000 64,022,000 149,231,000 103,579,000 47,052,000 58,569,000 140,757,000 87,004,000 41,807,000 51,102,000 130,345,000 85,025,000 40,679,000 44,608,000 133,204,000 81,971,000 38,777,000 46,891,000 127,619,000 80,855,000 36,241,000 41,043,000 130,290,000 89,512,000 40,780,000 44,052,000 125,132,000 78,533,000 30,892,000 43,621,000 116,073,000 73,903,000 24,951,000 31,270,000 109,005,000 70,010,000 19,119,000 26,812,000 109,353,000 
      yoy
    		12.41% 9.98% 3.50% 23.75% 16.03% 3.93% 8.44% -2.26% 3.43% 21.57% 9.31% 6.02% 19.05% 12.55% 14.61% 7.99% 2.33% 2.77% 14.56% -2.15% 3.73% 4.90% -4.87% 4.38% 1.38% 7.00% 14.25% -2.05% -9.67% -11.13% -6.83% 4.12% 13.98% 32.01% 0.99% 7.80% 6.26% 23.81% 39.50% 6.48% 5.56% 30.50% 16.63% -0.32%     
      qoq
    		113.72% -9.01% -60.19% 45.20% 109.10% -14.37% -52.40% 36.15% 87.29% -10.65% -57.10% 44.07% 120.14% -19.66% -58.39% 61.78% 108.11% -18.19% -60.79% 53.30% 109.01% -8.81% -66.51% 62.50% 111.39% -17.30% -63.26% 57.84% 123.10% -11.70% -68.50% 45.56% 119.50% -7.43% -64.80% 59.34% 154.22% -29.18% -62.42% 57.06% 196.19% -20.21% -71.31% 55.70% 266.18% -28.69% -75.48%  
      operating margin %
    		20.27% 17.25% 16.96% 19.30% 19.71% 17.46% 19.60% 19.23% 17.68% 17.03% 16.08% 14.46% 12.66% 13.09% 13.65% 14.49% 14.65% 15.26% 16.19% 20.85% 17.56% 16.63% 16.32% 25.22% 18.11% 15.60% 16.14% 19.31% 17.41% 15.21% 14.03% 20.41% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% 
      other income
    		1,348,000 2,363,000 2,572,000 518,000 105,000 2,982,000 832,000 3,508,000 4,666,000 55,000 2,174,000 2,581,000 -1,833,750 793,000 -3,983,000  -439,500 -1,805,000 451,000 -405,000 -799,000 198,000 2,394,000 -5,788,000    429,000     1,054,000 1,042,000 875,000 1,246,000 102,000 911,000 416,000 18,000 -788,000 166,000 72,000 813,000 620,000 8,000 672,000 633,000 
      interest expense
    		-36,460,000 -35,373,000 -35,279,000 -35,697,000 -39,760,000 -39,148,000 -36,970,000 -31,357,000 -29,778,000 -27,961,000 -27,485,000 -30,115,000 -26,040,000 -19,551,000 -16,320,000 -15,595,000 -14,473,000 -15,392,000 -14,996,000 -15,440,000 -15,427,000 -15,542,000 -15,843,000 -15,693,000 -15,713,000 -15,783,000 -15,399,000 -15,786,000 -14,585,000 -12,365,000 -12,003,000 -12,352,000 -11,784,000 -11,495,000 -11,305,000 -11,481,000 -11,235,000 -10,809,000 -10,848,000 -10,847,000 -10,978,000 -11,233,000 -11,190,000 -11,169,000 -9,956,000 -11,160,000 -11,776,000 -12,950,000 
      income before income taxes
    		104,620,000 32,371,000 39,148,000 145,320,000 84,655,000 23,283,000 33,287,000 118,011,000 82,023,000 29,297,000 38,711,000 121,697,000 80,691,000 28,294,000 38,266,000 121,017,000 71,082,000 24,610,000 36,557,000 114,500,000 69,774,000 25,335,000 31,159,000 111,723,000 65,115,000 21,597,000 30,627,000 112,262,000 61,198,000 21,947,000 26,846,000 115,774,000 78,538,000 29,883,000 33,160,000 114,557,000 67,036,000 20,637,000 32,875,000 104,789,000 62,164,000 12,000,000 19,650,000 98,195,000 59,554,000 7,315,000 15,371,000 95,888,000 
      income taxes
    		-18,314,000 -5,905,000 -7,115,000 -25,901,000 -7,633,000 -4,015,000 -6,044,000 -18,694,000 -11,290,000 -4,108,000 -6,022,000 -19,076,000 -13,659,000 -4,593,000 -6,191,000 -22,083,000 -10,570,000 -4,357,000 -6,464,000 -18,925,000 -11,443,000 -4,256,000 -5,834,000 -20,046,000 -13,953,000 -4,140,000 -6,157,000 -18,602,000 -16,494,000 -5,671,000 -6,427,000 -24,939,000 -31,419,000 -11,086,000 -12,537,000 -38,101,000 -24,722,000 -7,900,000 -12,575,000 -40,046,000 -22,962,000 -4,629,000 -7,574,000 -37,814,000   -5,917,000 -36,812,000 
      net income
    		86,306,000 26,466,000 32,033,000 119,419,000 77,022,000 19,268,000 27,243,000 99,317,000 70,733,000 25,189,000 32,689,000 102,621,000 67,032,000 23,701,000 32,075,000 98,934,000 60,512,000 20,253,000 30,093,000 95,575,000 58,331,000 21,079,000 25,325,000 91,677,000 51,162,000 17,457,000 24,470,000 93,660,000 44,704,000 16,276,000 20,419,000 90,835,000 47,119,000 18,797,000 20,623,000 76,456,000 42,314,000 12,737,000 20,300,000 64,743,000 39,202,000 7,371,000 12,076,000 60,381,000 36,607,000 4,653,000 9,454,000 59,076,000 
      yoy
    		12.05% 37.36% 17.58% 20.24% 8.89% -23.51% -16.66% -3.22% 5.52% 6.28% 1.91% 3.73% 10.77% 17.02% 6.59% 3.51% 3.74% -3.92% 18.83% 4.25% 14.01% 20.75% 3.49% -2.12% 14.45% 7.26% 19.84% 3.11% -5.13% -13.41% -0.99% 18.81% 11.36% 47.58% 1.59% 18.09% 7.94% 72.80% 68.10% 7.22% 7.09% 58.41% 27.73% 2.21%     
      qoq
    		226.10% -17.38% -73.18% 55.05% 299.74% -29.27% -72.57% 40.41% 180.81% -22.94% -68.15% 53.09% 182.82% -26.11% -67.58% 63.49% 198.78% -32.70% -68.51% 63.85% 176.73% -16.77% -72.38% 79.19% 193.07% -28.66% -73.87% 109.51% 174.66% -20.29% -77.52% 92.78% 150.67% -8.85% -73.03% 80.69% 232.21% -37.26% -68.65% 65.15% 431.84% -38.96% -80.00% 64.94% 686.74% -50.78% -84.00%  
      net income margin %
    		12.52% 6.98% 7.56% 12.77% 12.21% 5.66% 7.69% 13.10% 11.67% 7.50% 8.21% 9.94% 8.19% 6.60% 7.48% 10.18% 10.19% 7.39% 9.53% 15.28% 12.05% 8.62% 9.27% 17.36% 11.30% 7.02% 8.42% 14.17% 9.62% 6.83% 6.98% 14.23% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% 
      earnings per share
    		                                                
      basic
    		1.43 0.44 0.53 1.99 1.35 0.34 0.48 1.75 1.27 0.45 0.59 1.85 1.23 0.44 0.59 1.83 1.12 0.38 0.56 1.79 1.1 0.4 0.48 1.73 0.97 0.33 0.46 1.77 0.85 0.31 0.39 1.73 0.89 0.36 0.39 1.45 0.81 0.24 0.39 1.23 0.74 0.14 0.23 1.15 0.7 0.09 0.18 1.13 
      diluted
    		1.43 0.44 0.53 1.98 1.35 0.34 0.48 1.75 1.27 0.45 0.58 1.84 1.23 0.44 0.59 1.83 1.13 0.38 0.56 1.79 1.09 0.39 0.48 1.72 0.96 0.33 0.46 1.76 0.84 0.31 0.39 1.72 0.89 0.36 0.39 1.44 0.8 0.24 0.38 1.22 0.74 0.14 0.23 1.13 0.69 0.09 0.18 1.13 
      average shares
    		                                                
      basic
    		36 60,183 60,113 60,077 58 56,825 56,750 56,729 24 55,624 55,566 55,538 43 54,310 54,262 53,922 59 53,710 53,466 53,372 49 53,190 53,053 53,007 12 52,933 52,890 52,825 15 52,736 52,692 52,604 -12 52,488 52,553 52,576 1 52,453 52,386 52,519 -49 52,408 52,767 52,707 11 52,361 51,797 52,334 
      diluted
    		88 60,554 60,455 60,266 127 57,093 56,827 56,800 -37 55,975 55,914 55,800 56 54,482 54,335 54,030 56 53,793 53,548 53,515 57 53,408 53,264 53,268 11 53,267 53,215 53,206 60 53,112 52,899 52,897 -5 52,926 52,969 53,056 1 52,942 52,836 53,107 -61 53,072 53,438 53,446 98 53,014 52,446 52,512 
      dividends declared per share of stock
    		0.67 0.67 0.67 0.67 0.66 0.66 0.66 0.66 0.65 0.65 0.65 0.65 0.62 0.62 0.62 0.62 0.58 0.58 0.58 0.58 0.54 0.54 0.54 0.54 0.5 0.5 0.5 0.5 0.46 0.46 0.46 0.46 0.42 0.42 0.42 0.42 0.35 0.35 0.35 0.35 0.3 0.3 0.3 0.3 0.28 0.28 0.28  
      other expense
    		               -4,145,000         -1,143,000 -1,397,000 -865,000  -5,072,000 -1,929,000 -2,194,000 -2,164,000 -244,000 -444,000 -462,000 -340,000 -364,000 -357,000 -314,000 -455,000 27,000 -1,884,000 -502,000 -454,000 -1,120,000 -652,000 -337,000 -1,148,000 
      revenues
    		                                462,394,000 247,142,000 279,689,000 550,408,000 440,753,000 232,191,000 245,923,000 508,364,000 389,149,000 225,226,000 256,786,000 676,531,000 514,368,000 241,522,000 296,838,000 766,178,000 
      revenues from contracts with customers
    		                            290,540,500 235,757,000 291,168,000 635,237,000                 
      other revenues
    		                            1,775,750 2,523,000 1,353,000 3,227,000                 
      net margin
    		                            168,357,750 187,024,000 198,362,000 288,045,000 252,388,000 188,373,000 197,117,000 287,254,000 243,395,000 179,938,000 189,466,000 272,635,000 231,416,000 170,502,000 176,837,000 262,978,000 224,176,000 166,452,000 176,493,000 259,836,000 
      income (taxes) benefit
    		                                            -11,347,750 -2,662,000   
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2025-12-31 2025-09-30 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 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 
                                                       
        assets
      		                                                 
        property, plant and equipment
      		9,734,150,000 9,587,605,000 9,404,119,000 9,231,791,000 9,124,134,000 8,937,502,000 8,764,153,000 8,606,475,000 8,468,967,000 8,284,972,000 8,117,663,000 7,957,407,000 7,834,557,000 7,647,792,000 7,494,631,000 7,365,981,000 7,274,268,000 7,138,445,000 7,023,340,000 6,915,000,000 6,838,603,000 6,735,032,000 6,633,738,000 6,536,625,000 6,433,119,000 6,336,041,000 6,241,105,000 6,148,394,000 6,073,143,000 5,964,287,000 5,870,814,000 5,782,919,000 5,713,912,000 5,643,136,000 5,545,302,000 5,468,277,000 5,404,168,000 5,338,591,000 5,259,066,000 5,196,788,000 5,132,682,000 5,040,313,000 4,970,989,000 4,904,206,000 4,850,201,000 4,782,857,000 4,704,681,000 4,628,598,000 4,534,074,000 
        accumulated depreciation and amortization
      		2,611,952,000 2,577,880,000 2,532,028,000 2,493,171,000 2,478,261,000 2,432,659,000 2,390,978,000 2,368,521,000 2,333,755,000 2,299,294,000 2,261,035,000 2,226,565,000 2,205,717,000 2,172,271,000 2,137,601,000 2,102,368,000 2,083,433,000 2,060,335,000 2,033,996,000 2,004,345,000 1,971,546,000 1,955,200,000 1,926,013,000 1,901,738,000 1,867,893,000 1,847,573,000 1,840,457,000 1,816,480,000 1,789,431,000 1,768,381,000 1,745,124,000 1,726,599,000 1,706,327,000 1,730,857,000 1,710,509,000 1,694,389,000 1,672,548,000 1,658,266,000 1,647,585,000 1,639,054,000 1,620,771,000 1,604,509,000 1,590,940,000 1,578,438,000 1,556,481,000 1,545,828,000 1,530,201,000 1,516,458,000 1,489,216,000 
        net property, plant and equipment
      		7,122,198,000 7,009,725,000 6,872,091,000 6,738,620,000 6,645,873,000 6,504,843,000 6,373,175,000 6,237,954,000 6,135,212,000 5,985,678,000 5,856,628,000 5,730,842,000 5,628,840,000 5,475,521,000 5,357,030,000 5,263,613,000 5,190,835,000 5,078,110,000 4,989,344,000 4,910,655,000 4,867,057,000 4,779,832,000 4,707,725,000 4,634,887,000 4,565,226,000 4,488,468,000 4,400,648,000 4,331,914,000 4,283,712,000 4,195,906,000 4,125,690,000 4,056,320,000 4,007,585,000 3,912,279,000 3,834,793,000 3,773,888,000 3,731,620,000 3,680,325,000 3,611,481,000 3,557,734,000 3,511,911,000 3,435,804,000 3,380,049,000 3,325,768,000 3,293,720,000 3,237,029,000 3,174,480,000 3,112,140,000 3,044,858,000 
        current assets
      		                                                 
        cash and cash equivalents
      		10,620,000 9,047,000 20,545,000 19,305,000 57,995,000 18,797,000 10,744,000 11,509,000 18,835,000 9,192,000 7,332,000 7,809,000 9,681,000 10,366,000 7,385,000 12,447,000 8,852,000 6,467,000 209,070,000 704,911,000 7,993,000 6,184,000 10,454,000 11,069,000 17,853,000 12,562,000 11,114,000 19,628,000 21,323,000 12,430,000 12,580,000 44,536,000 14,413,000 6,872,000 5,113,000 13,206,000 14,663,000 4,513,000 54,257,000 52,657,000 2,433,000 52,974,000 135,886,000 142,502,000 11,943,000 59,685,000 161,326,000 178,646,000  
        restricted cash and cash equivalents
      		23,107,000 11,738,000 22,176,000 8,883,000 20,542,000 9,961,000 21,722,000 9,963,000 20,552,000 8,846,000 32,006,000 19,117,000 8,446,000                                     
        total cash, cash equivalents and restricted cash and cash equivalents
      		33,727,000 20,785,000 42,721,000 28,188,000 78,537,000 28,758,000 32,466,000 21,472,000 39,387,000 18,038,000 39,338,000 26,926,000 18,127,000                                     
        accounts receivable
      		461,631,000 210,173,000 263,073,000 446,807,000 408,448,000 176,248,000 193,261,000 324,505,000 347,864,000 177,467,000 234,409,000 493,573,000 553,834,000 192,741,000 242,671,000 494,696,000 341,756,000 118,383,000 160,647,000 279,591,000 292,985,000 106,777,000 138,885,000 234,327,000 260,012,000 130,768,000 169,801,000 338,082,000 295,421,000 132,436,000 163,967,000 303,493,000 298,768,000 127,689,000 152,278,000 249,155,000 290,944,000 105,060,000 115,265,000 195,158,000 216,343,000 103,406,000 142,701,000 308,850,000 326,749,000 135,750,000 192,104,000 398,809,000 356,988,000 
        materials and supplies
      		97,595,000 97,453,000 95,548,000 87,981,000 91,662,000 94,392,000 86,502,000 80,349,000 77,649,000 74,918,000 72,594,000 73,033,000 70,873,000 66,966,000 62,819,000 54,187,000 54,892,000 52,638,000 52,075,000 51,147,000 52,766,000 55,492,000 54,586,000 53,390,000 55,732,000 56,788,000 50,344,000 46,895,000 44,333,000 40,363,000 36,124,000 35,062,000 39,672,000 38,789,000 36,876,000 34,288,000 34,084,000 30,098,000 32,618,000 29,708,000 33,325,000 33,400,000 31,682,000       
        income tax receivable
      		55,552,000 53,624,000 53,624,000 53,624,000 53,624,000                                1,397,000 6,952,000 708,000  38,877,000 23,725,000 12,156,000 5,590,000 43,800,000     
        natural gas in storage
      		176,451,000 198,045,000 134,448,000 68,686,000 161,184,000 180,795,000 138,290,000 110,451,000 187,097,000 204,407,000 144,742,000 98,966,000 269,205,000 343,377,000 198,306,000 78,945,000 179,646,000 166,778,000 85,748,000 44,321,000 93,946,000 105,377,000 72,192,000 48,032,000 104,259,000 118,450,000 88,235,000 51,475,000 107,295,000 126,481,000 80,482,000 50,556,000 130,154,000 157,641,000 114,996,000 91,231,000 125,432,000 144,230,000 103,741,000 80,553,000 142,153,000 159,912,000 119,891,000 81,277,000 185,300,000 217,320,000 152,045,000 81,654,000 166,128,000 
        regulatory assets
      		49,504,000 70,619,000 56,017,000 36,538,000 101,210,000 130,854,000 114,153,000 94,692,000 75,308,000 64,161,000 64,912,000 66,198,000 275,572,000 316,131,000 1,609,763,000 1,600,034,000 1,611,676,000 300,485,000 50,752,000 43,944,000 56,773,000 71,748,000 47,961,000 39,808,000 47,440,000 54,123,000 38,372,000 38,760,000 54,420,000 49,039,000 39,402,000 49,295,000 88,180,000 99,548,000 82,302,000 74,636,000 83,146,000 73,863,000 54,645,000 42,741,000 32,925,000 31,703,000 21,360,000 22,322,000 50,193,000 51,900,000 31,561,000 29,916,000 21,657,000 
        other current assets
      		41,424,000 28,508,000 35,849,000 34,414,000 35,216,000 79,455,000 35,553,000 32,226,000 37,899,000 25,374,000 31,294,000 29,773,000 29,997,000 28,845,000 27,929,000 34,161,000 27,742,000 30,759,000 45,419,000 34,757,000 35,406,000 24,126,000 23,311,000 21,041,000 20,906,000 16,992,000 18,946,000 21,430,000 20,495,000 13,762,000 18,154,000 18,754,000 17,807,000 15,014,000 20,014,000 18,616,000 19,257,000 12,457,000 20,222,000 16,794,000 16,789,000 12,227,000 13,843,000 43,903,000 49,516,000 40,527,000 33,892,000 35,323,000 54,240,000 
        total current assets
      		915,884,000 679,207,000 681,280,000 756,238,000 929,881,000 690,502,000 600,225,000 663,695,000 765,204,000 564,365,000 587,289,000 788,469,000 1,217,608,000 958,426,000 2,148,873,000 2,274,470,000 2,224,564,000 752,890,000 603,711,000 1,158,671,000 539,869,000 369,704,000 347,389,000 407,667,000 506,202,000 389,683,000 376,812,000 516,270,000 543,287,000 374,511,000 350,709,000 501,696,000 588,994,000 445,553,000 411,579,000 481,132,000 568,923,000 377,173,000 381,456,000 417,611,000 482,845,000 417,347,000 477,519,000 604,444,000 667,501,000 505,182,000 570,928,000 724,348,000 602,184,000 
        goodwill and other assets
      		                                                 
        securitized intangible asset
      		233,786,000 241,475,000 248,965,000 258,257,000 265,951,000 272,510,000 278,939,000 286,234,000 293,619,000 302,081,000 309,569,000 316,749,000 323,838,000                                     
        goodwill
      		157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 157,953,000 
        pension and other postemployment benefits
      		47,012,000 52,277,000 45,850,000 44,366,000 42,882,000                                             
        other assets
      		120,026,000 103,054,000 98,932,000 103,225,000 105,025,000 143,692,000 138,770,000 134,350,000 131,100,000 120,206,000 119,069,000 117,279,000 117,326,000 105,125,000 110,535,000 119,667,000 103,906,000 94,633,000 101,922,000 105,809,000 96,877,000 92,158,000 95,304,000 93,712,000 87,883,000 80,936,000 86,889,000 88,637,000 46,211,000 49,528,000 48,003,000 48,403,000 47,157,000 43,625,000 47,711,000 46,563,000 43,773,000 47,142,000 49,294,000 43,247,000 55,838,000 54,905,000 57,728,000 52,274,000 51,313,000 52,790,000 57,758,000 54,376,000 17,658,000 
        total goodwill and other assets
      		815,002,000 815,342,000 805,770,000 832,382,000 849,817,000 844,080,000 851,671,000 862,388,000 870,578,000 882,404,000 891,205,000 900,941,000 929,948,000 887,562,000 905,509,000 929,551,000 986,721,000 2,302,918,000 2,590,594,000 2,610,578,000 621,786,000 614,228,000 626,498,000 632,351,000 636,872,000 655,029,000 669,146,000 676,108,000 641,643,000 582,540,000 591,520,000 601,077,000 610,299,000 613,231,000 626,758,000 634,854,000 642,248,000 636,181,000 617,895,000 622,759,000 649,654,000 653,170,000 668,392,000 675,276,000 687,989,000 522,766,000 538,402,000 545,530,000 199,433,000 
        total assets
      		8,853,084,000 8,504,274,000 8,359,141,000 8,327,240,000 8,425,571,000 8,039,425,000 7,825,071,000 7,764,037,000 7,770,994,000 7,432,447,000 7,335,122,000 7,420,252,000 7,776,396,000 7,321,509,000 8,411,412,000 8,467,634,000 8,402,120,000 8,133,918,000 8,183,649,000 8,679,904,000 6,028,712,000 5,763,764,000 5,681,612,000 5,674,905,000 5,708,300,000 5,533,180,000 5,446,606,000 5,524,292,000 5,468,642,000 5,152,957,000 5,067,919,000 5,159,093,000 5,206,878,000 4,971,063,000 4,873,130,000 4,889,874,000 4,942,791,000 4,693,679,000 4,610,832,000 4,598,104,000 4,644,410,000 4,506,321,000 4,525,960,000 4,605,488,000 4,649,210,000 4,264,977,000 4,283,810,000 4,382,018,000 3,846,475,000 
        one gas, inc.
      		                                                 
        consolidated balance sheets
      		                                                 
        equity and liabilities
      		                                                 
        equity and long-term debt
      		                                                 
        common stock
      		627,000 600,000 600,000 599,000 599,000 567,000 567,000 566,000 565,000 555,000 554,000 553,000 553,000 541,000 541,000 541,000 536,000 536,000 535,000 532,000 532,000 531,000 529,000 529,000 528,000 527,000 527,000 527,000 526,000 526,000 526,000 526,000 526,000 526,000 526,000 526,000 526,000 526,000 526,000 526,000 526,000 526,000 526,000 526,000 521,000 520,000 520,000 520,000  
        paid-in capital
      		2,530,137,000 2,317,921,000 2,303,825,000 2,295,989,000 2,294,469,000 2,042,568,000 2,038,514,000 2,031,168,000 2,028,755,000 1,943,536,000 1,940,446,000 1,933,468,000 1,932,714,000 1,833,480,000 1,830,678,000 1,824,771,000 1,790,362,000 1,785,476,000 1,776,911,000 1,755,476,000 1,756,921,000 1,751,350,000 1,735,788,000 1,729,587,000 1,733,092,000 1,728,237,000 1,725,843,000 1,720,220,000 1,727,492,000 1,725,361,000 1,723,795,000 1,721,701,000 1,737,551,000 1,735,638,000 1,734,083,000 1,732,335,000 1,749,574,000 1,748,965,000 1,756,799,000 1,754,899,000 1,764,875,000 1,762,508,000 1,764,170,000 1,759,934,000 1,758,796,000 1,755,539,000 1,754,636,000 1,752,105,000  
        retained earnings
      		909,355,000 863,777,000 879,866,000 888,449,000 809,606,000 770,416,000 788,976,000 799,443,000 737,739,000 703,361,000 714,530,000 718,163,000 651,863,000 618,669,000 628,805,000 630,536,000 565,161,000 535,964,000 546,998,000 548,068,000 483,635,000 454,205,000 461,962,000 465,411,000 402,509,000 377,941,000 387,077,000 389,177,000 320,869,000 300,547,000 308,652,000 312,595,000 246,121,000 221,185,000 224,570,000 226,195,000 161,021,000 137,221,000 142,996,000 141,180,000 95,046,000 71,746,000 80,273,000 84,239,000 39,894,000 18,486,000 28,401,000 33,500,000  
        accumulated other comprehensive income
      		4,000 78,000 44,000                           -5,167,000 -5,370,000 -5,573,000 -5,493,000 -4,329,000 -4,457,000 -4,586,000 -4,715,000 -4,054,000 -4,170,000 -4,285,000 -4,401,000 -4,751,000 -4,892,000 -5,034,000 -5,174,000 -3,549,000 -3,471,000 -3,393,000  
        total equity
      		3,440,123,000 3,182,376,000 3,184,335,000 3,185,035,000 3,104,548,000 2,812,622,000 2,826,873,000 2,829,985,000 2,765,877,000 2,646,747,000 2,654,826,000 2,651,480,000 2,584,426,000 2,446,274,000 2,453,596,000 2,449,390,000 2,349,532,000 2,315,098,000 2,317,266,000 2,296,599,000 2,233,311,000 2,200,017,000 2,191,987,000 2,189,012,000 2,129,390,000 2,101,881,000 2,108,463,000 2,104,780,000 2,042,656,000 2,016,624,000 2,022,344,000 2,020,948,000 1,960,209,000 1,931,992,000 1,933,296,000 1,944,578,000 1,888,280,000 1,862,344,000 1,875,588,000 1,867,187,000 1,841,555,000 1,810,921,000 1,818,893,000 1,839,665,000 1,794,037,000 1,770,996,000 1,780,086,000 1,782,732,000  
        other long-term debt, excluding current maturities, net of issuance costs
      		2,133,018,000 2,132,689,000 2,132,362,000 2,132,039,000 2,131,718,000 2,131,448,000 1,878,689,000 1,878,260,000 1,877,895,000 1,580,552,000 1,580,263,000 1,580,018,000 2,352,400,000                                     
        securitized utility tariff bonds, excluding current maturities, net of issuance costs
      		223,020,000 222,879,000 238,501,000 238,363,000 253,568,000 253,434,000 268,233,000 268,102,000 282,506,000 282,049,000 295,949,000 295,555,000 309,343,000                                     
        total long-term debt, excluding current maturities, net of issuance costs
      		2,356,038,000 2,355,568,000 2,370,863,000 2,370,402,000 2,385,286,000 2,384,882,000 2,146,922,000 2,146,362,000 2,160,401,000 1,862,601,000 1,876,212,000                                       
        total equity and long-term debt
      		5,796,161,000 5,537,944,000 5,555,198,000 5,555,437,000 5,489,834,000 5,197,504,000 4,973,795,000 4,976,347,000 4,926,278,000 4,509,348,000 4,531,038,000 4,527,053,000 5,246,169,000 4,875,327,000 4,737,461,000 4,733,010,000 6,032,910,000 5,998,235,000 6,400,096,000 6,379,260,000 3,815,739,000 3,782,210,000 3,773,918,000 3,475,205,000 3,415,454,000 3,387,818,000 3,394,274,000 3,390,367,000 3,328,139,000 2,910,504,000 2,916,015,000 2,914,411,000 3,153,466,000 3,125,044,000 3,126,144,000 3,137,225,000 3,080,726,000 3,054,592,000 3,067,638,000 3,059,041,000 3,042,860,000 3,012,227,000 3,020,201,000 3,040,975,000 2,995,348,000 2,972,309,000 2,981,400,000 2,984,048,000 2,267,972,000 
        current liabilities
      		                                                 
        current maturities of other long-term debt, net of issuance costs
      		249,674,000                                                 
        current maturities of securitized utility tariff bonds, net of issuance costs
      		30,566,000                                                 
        notes payable
      		737,400,000 764,400,000 872,400,000 811,900,000 914,600,000 951,400,000 1,031,500,000 953,400,000 88,500,000 326,950,000 217,100,000 280,000,000 552,000,000    494,000,000   447,000,000 418,225,000 308,000,000 230,500,000 474,695,000 516,500,000 395,000,000 293,000,000 295,500,000 299,500,000 276,000,000 185,000,000 282,607,000 357,215,000 174,000,000 79,000,000 85,400,000 145,000,000 41,000,000   12,500,000    42,000,000     
        accounts payable
      		222,102,000 121,070,000 130,965,000 175,898,000 261,321,000 146,821,000 164,963,000 196,583,000 278,056,000 168,648,000 154,121,000 197,619,000 360,493,000 191,117,000 186,425,000 209,756,000 258,554,000 127,544,000 158,353,000 227,955,000 152,313,000 65,311,000 62,710,000 82,088,000 120,490,000 62,575,000 67,578,000 119,629,000 174,510,000 68,332,000 70,429,000 77,566,000 143,681,000 68,184,000 60,458,000 76,142,000 131,988,000 70,562,000 59,983,000 59,887,000 107,482,000 57,240,000 67,819,000 105,058,000 159,064,000 97,653,000 100,357,000 175,526,000 169,500,000 
        accrued taxes other than income
      		75,568,000 73,688,000 59,449,000 77,853,000 75,608,000 71,829,000 56,018,000 64,405,000 68,793,000 67,527,000 54,400,000 76,148,000 78,352,000 73,387,000 58,183,000 75,153,000 67,035,000 69,374,000 56,090,000 65,859,000 63,800,000 57,732,000 41,922,000 46,774,000 47,956,000 47,205,000 37,312,000 51,903,000 47,640,000 48,760,000 34,931,000 47,471,000 41,324,000 44,658,000 33,562,000 37,431,000 42,571,000 39,919,000 31,676,000 37,784,000 37,249,000 40,429,000 34,199,000 47,859,000 44,742,000 43,486,000 38,641,000 56,551,000 32,426,000 
        regulatory liabilities
      		57,277,000 61,208,000 66,959,000 39,665,000 22,525,000 27,652,000 39,750,000 34,844,000 66,901,000 62,807,000 79,686,000 48,405,000 47,867,000 38,171,000 33,755,000 32,822,000 8,090,000 63,194,000 23,319,000 23,398,000 15,761,000 20,454,000 26,163,000 33,649,000 45,201,000 48,784,000 46,534,000 54,791,000 48,394,000 41,665,000 47,867,000 44,296,000 519,421,000    11,922,000 13,204,000 19,675,000 20,089,000 24,615,000 41,337,000 37,354,000 54,252,000 32,467,000 33,546,000 17,983,000   
        customer deposits
      		52,871,000 56,662,000 54,008,000 54,923,000 56,243,000 72,537,000 60,243,000 58,064,000 62,187,000 66,993,000 54,635,000 56,467,000 57,854,000 62,005,000 60,277,000 61,105,000 62,454,000 59,433,000 56,765,000 57,241,000 68,028,000 55,319,000 56,949,000 58,272,000 57,987,000 57,531,000 58,831,000 62,401,000 61,183,000 61,569,000 61,249,000 61,861,000 60,811,000 59,643,000 60,523,000 61,945,000 61,209,000 60,425,000 61,438,000 62,423,000 60,325,000 58,331,000 59,179,000 60,856,000 60,003,000 57,317,000 57,066,000 58,784,000 57,360,000 
        other current liabilities
      		106,400,000 96,694,000 88,417,000 87,395,000 99,009,000 88,405,000 76,303,000 68,032,000 112,370,000 78,348,000 87,110,000 76,397,000 72,137,000 66,572,000 99,534,000 84,754,000 90,360,000 64,591,000 28,255,000 57,583,000 78,952,000 68,898,000 72,511,000 80,675,000 84,603,000 66,660,000 75,098,000 73,967,000 18,446,000 7,858,000 10,102,000 10,395,000 21,465,000 19,466,000 23,982,000 26,884,000 9,451,000 8,212,000 10,965,000 25,749,000 11,700,000 10,478,000 14,839,000 18,324,000 28,132,000 21,372,000 34,794,000 54,155,000 42,422,000 
        total current liabilities
      		1,531,858,000 1,453,934,000 1,301,962,000 1,277,398,000 1,458,276,000 1,387,614,000 1,456,973,000 1,403,524,000 1,477,221,000 1,571,698,000 1,454,091,000 1,542,275,000 1,189,419,000 1,104,664,000 2,328,285,000 2,368,766,000 980,493,000 720,136,000 369,305,000 879,036,000 797,079,000 575,714,000 490,755,000 776,153,000 872,737,000 677,755,000 578,353,000 658,191,000 698,891,000 836,027,000 749,338,000 844,706,000 673,330,000 392,228,000 292,685,000 307,943,000 443,933,000 258,832,000 217,984,000 228,593,000 304,221,000 233,469,000 246,936,000 300,003,000 392,433,000 274,148,000 268,362,000 363,987,000 769,077,000 
        deferred credits and other liabilities
      		                                                 
        deferred income taxes
      		963,874,000 937,841,000 928,588,000 921,360,000 891,738,000 851,378,000 789,628,000 781,316,000 752,068,000 733,206,000 727,184,000 720,640,000 698,456,000 690,146,000 690,751,000 698,765,000 695,284,000 677,034,000 670,672,000 685,901,000 656,806,000 642,309,000 637,975,000 698,877,000 682,632,000 675,613,000 673,939,000 666,438,000 652,426,000 634,650,000 628,532,000 625,724,000 599,945,000 1,089,061,000 1,077,992,000 1,065,096,000 1,038,568,000 1,011,691,000 987,906,000 967,943,000 951,785,000 907,647,000 900,630,000 897,458,000 894,585,000 835,345,000 834,686,000 831,371,000 743,452,000 
        other deferred credits
      		109,571,000 112,816,000 118,935,000 115,919,000 118,160,000 99,612,000 99,325,000 95,155,000 94,684,000 89,118,000 90,556,000 94,060,000 93,324,000 92,609,000 91,067,000 96,003,000 105,279,000 107,297,000 102,613,000 108,718,000 113,888,000 110,016,000 116,774,000 120,595,000 118,302,000 120,827,000 122,776,000 124,257,000 89,600,000 94,616,000 91,935,000 89,539,000 87,778,000 81,826,000 79,428,000 79,075,000 76,057,000 77,334,000 73,435,000 74,446,000 73,235,000 78,905,000 80,315,000 80,398,000 79,065,000 183,175,000 199,362,000 202,612,000 65,974,000 
        total deferred credits and other liabilities
      		1,525,065,000 1,512,396,000 1,501,981,000 1,494,405,000 1,477,461,000 1,454,307,000 1,394,303,000 1,384,166,000 1,367,495,000 1,351,401,000 1,349,993,000 1,350,924,000 1,340,808,000 1,341,518,000 1,345,666,000 1,365,858,000 1,388,717,000 1,415,547,000 1,414,248,000 1,421,608,000 1,415,894,000 1,405,840,000 1,416,939,000 1,423,547,000 1,420,109,000 1,467,607,000 1,473,979,000 1,475,734,000 1,441,612,000 1,406,426,000 1,402,566,000 1,399,976,000 1,380,082,000 1,453,791,000 1,454,301,000 1,444,706,000 1,418,132,000 1,380,255,000 1,325,210,000 1,310,470,000 1,297,329,000 1,260,625,000 1,258,823,000 1,264,510,000 1,261,429,000 1,018,520,000 1,034,048,000 1,033,983,000 809,426,000 
        commitments and contingencies
      		                                                 
        total liabilities and equity
      		8,853,084,000 8,504,274,000 8,359,141,000 8,327,240,000 8,425,571,000 8,039,425,000 7,825,071,000 7,764,037,000 7,770,994,000 7,432,447,000 7,335,122,000 7,420,252,000 7,776,396,000 7,321,509,000 8,411,412,000 8,467,634,000 8,402,120,000 8,133,918,000 8,183,649,000 8,679,904,000 6,028,712,000 5,763,764,000 5,681,612,000 5,674,905,000 5,708,300,000 5,533,180,000 5,446,606,000 5,524,292,000 5,468,642,000 5,152,957,000 5,067,919,000 5,159,093,000 5,206,878,000 4,971,063,000 4,873,130,000 4,889,874,000 4,942,791,000 4,693,679,000 4,610,832,000 4,598,104,000 4,644,410,000 4,506,321,000 4,525,960,000 4,605,488,000 4,649,210,000 4,264,977,000 4,283,810,000 4,382,018,000 3,846,475,000 
        current maturities of other long-term debt
      		 249,646,000 14,000 14,000 14,000 14,000 13,000 13,000 772,984,000 772,911,000 772,838,000 772,742,000                                      
        current maturities of securitized utility tariff bonds
      		 30,566,000 29,750,000 29,750,000 28,956,000 28,956,000 28,183,000 28,183,000 27,430,000 27,514,000 34,201,000 34,497,000 20,716,000                                     
        accumulated other comprehensive loss
      		   -2,000 -126,000 -929,000 -1,184,000 -1,192,000 -1,182,000 -705,000 -704,000 -704,000 -704,000 -6,416,000 -6,428,000 -6,458,000 -6,527,000 -6,878,000 -7,178,000 -7,477,000 -7,777,000 -6,069,000 -6,292,000 -6,515,000 -6,739,000 -4,824,000 -4,984,000 -5,144,000 -4,086,000                     
        employee benefit obligations
      		     20,030,000 20,178,000 20,220,000 20,265,000 19,642,000 19,620,000 19,599,000 19,587,000 22,151,000 25,131,000 28,468,000 35,226,000 74,373,000 82,122,000 89,860,000 97,637,000 98,257,000 104,075,000 109,865,000 115,657,000 164,206,000 168,387,000 173,296,000 178,720,000 155,443,000 160,382,000 166,611,000 172,938,000 282,904,000 296,881,000 300,535,000 303,507,000 291,230,000 263,869,000 268,081,000 272,309,000 274,073,000 277,878,000 286,654,000 287,779,000     
        total-long term debt, excluding current maturities, net of issuance costs
      		           1,875,573,000 2,661,743,000                                     
        long-term debt, excluding current maturities and net of issuance costs of 14,520 and 12,418, respectively
      		             2,429,053,000                                    
        current maturities of long-term debt
      		             250,012,000 1,400,011,000 1,400,011,000              300,008,000 300,008,000 300,008,000     7,000 7,000 7,000 7,000 7,000 7,000 7,000 6,000 6,000 6,000 6,000 6,000 6,000 
        short-term debt
      		             423,400,000 490,100,000 505,165,000  336,000,000                                
        long-term debt, excluding current maturities and net of issuance costs of 12,038 and 12,418, respectively
      		              2,283,865,000                                   
        long-term debt, excluding current maturities and net of issuance costs of 12,229 and 12,418, respectively
      		               2,283,620,000                                  
        long-term debt, excluding current maturities, and net of issuance costs of 12,418 and 13,159, respectively
      		                3,683,378,000                                 
        assets from price risk management activities
      		                 77,380,000                                
        long-term debt, excluding current maturities and net of issuance costs of 12,605 and 13,159, respectively
      		                 3,683,137,000                                
        long-term debt, excluding current maturities and net of issuance costs of 12,792 and 13,159, respectively
      		                  4,082,830,000                               
        accrued interest
      		                  25,123,000          18,924,000 7,867,000 19,028,000 7,667,000 18,776,000 7,742,000 18,958,000 7,667,000 18,854,000 7,691,000 18,926,000 7,654,000 18,873,000 7,647,000 18,888,000    19,515,000   
        accrued liabilities
      		                  21,400,000          30,294,000 23,968,000 20,724,000 12,835,000 30,058,000 18,535,000 16,202,000 12,474,000 22,931,000 17,812,000 15,314,000 15,000,000 31,470,000 18,000,000 14,651,000 13,648,000 26,019,000 20,768,000    
        long-term debt, excluding current maturities and net of issuance costs of 12,976 and 13,159, respectively
      		                   4,082,661,000                              
        long-term debt, excluding current maturities, and net of issuance costs of 13,159 and 10,936, respectively
      		                    1,582,428,000                             
        long-term debt, excluding current maturities and net of issuance costs of 13,341 and 10,936, respectively
      		                     1,582,193,000                            
        long-term debt, excluding current maturities and net of issuance costs of 13,540 and 10,936, respectively
      		                      1,581,931,000                           
        long-term debt, excluding current maturities, and net of issuance costs of 10,823 and 10,936, respectively
      		                       1,286,193,000                          
        treasury stock
      		                            -2,145,000 -4,643,000 -5,259,000 -8,301,000 -18,496,000 -21,028,000 -21,426,000 -9,892,000 -18,126,000 -20,314,000 -20,563,000 -25,133,000 -14,491,000 -19,108,000 -21,184,000       
        long-term debt, excluding current maturities, and net of issuance costs of 10,936 and 11,457, respectively
      		                        1,286,064,000                         
        long-term debt, excluding current maturities, and net of issuance costs of 11,048 and 11,457, respectively
      		                         1,285,937,000                        
        long-term debt, excluding current maturities, and net of issuance costs of 11,159 and 11,457, respectively
      		                          1,285,811,000                       
        long-term debt, excluding current maturities, and net of issuance costs of 11,368 and 11,457, respectively
      		                           1,285,587,000                      
        long-term debt, excluding current maturities, and net of issuance costs of 11,457 and 8,033, respectively
      		                            1,285,483,000                     
        long-term debt, excluding current maturities, and net of issuance costs of 7,402 and 8,033, respectively
      		                             893,880,000                    
        long-term debt, excluding current maturities, and net of issuance costs of 7,614 and 8,033, respectively
      		                              893,671,000                   
        long-term debt, excluding current maturities, and net of issuance costs of 7,824 and 8,033, respectively
      		                               893,463,000                  
        long-term debt, excluding current maturities, and net of issuance costs of 8,033 and 8,851, respectively
      		                                1,193,257,000                 
        balance sheets
      		                                                 
        long-term debt, excluding current maturities, and net of issuance costs of 8,239 and 8,851, respectively
      		                                 1,193,052,000                
        long-term debt, excluding current maturities, and net of issuance costs of 8,445 and 8,851, respectively
      		                                  1,192,848,000               
        long-term debt, excluding current maturities, and net of issuance costs of 8,648 and 8,851, respectively
      		                                   1,192,647,000              
        long-term debt, excluding current maturities, and net of issuance costs of 8,851 and 9,645, respectively
      		                                    1,192,446,000             
        long-term debt, excluding current maturities and net of issuance costs of 9,051 and 9,645, respectively
      		                                     1,192,248,000            
        long-term debt, excluding current maturities and net of issuance costs of 9,251 and 9,645, respectively
      		                                      1,192,050,000           
        long-term debt, excluding current maturities and net of issuance costs of 9,449 and 9,645, respectively
      		                                       1,191,854,000          
        long-term debt, excluding current maturities
      		                                        1,201,305,000 1,201,306,000 1,201,308,000 1,201,310,000 1,201,311,000 1,201,313,000 1,201,314,000 1,201,316,000 1,318,000 
        owner’s net investment
      		                                                1,239,023,000 
        long-term line of credit with oneok
      		                                                1,027,631,000 
        short-term note payable to oneok
      		                                                444,960,000 
        affiliate payable
      		                                                22,403,000 
        preferred stock, 0.01 par value: authorized 50,000,000 shares; no shares issued
      		                                                 
        current income taxes payable
      		                                               18,965,000  
        cash
      		                                                3,171,000 
        one gas predecessor
      		                                                 
      Cashflow Statements:
      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 2014-12-31 2014-09-30 2014-06-30 2014-03-31 
                                                       
          operating activities
        		                                               
          net income
        		26,466,000 32,033,000 119,419,000 77,022,000 19,268,000 27,243,000 99,317,000 70,733,000 25,189,000 32,689,000 102,621,000 67,032,000 23,701,000 32,075,000 98,934,000 60,512,000 20,254,000 30,093,000 95,575,000 58,331,000 21,079,000 25,325,000 91,677,000 51,162,000 17,457,000 24,470,000 93,660,000 44,704,000 16,276,000 20,419,000 90,835,000 47,119,000 18,797,000 20,623,000 76,456,000 42,314,000 12,737,000 20,301,000 64,743,000 39,202,000 7,371,000 12,076,000 60,381,000 36,607,000 4,653,000 9,454,000 59,076,000 
          adjustments to reconcile net income to net cash from operating activities:
        		                                               
          depreciation and amortization
        		76,933,000 79,314,000 81,704,000 75,452,000 72,126,000 72,549,000 76,572,000 72,584,000 68,435,000 67,547,000 71,264,000 61,065,000 55,234,000 55,043,000 57,137,000 52,945,000 51,150,000 50,872,000 52,266,000 51,983,000 47,998,000 47,387,000 47,513,000 46,135,000 45,471,000 44,943,000 43,846,000 41,095,000 40,344,000 39,757,000 38,890,000 38,596,000 38,423,000 37,851,000 37,019,000 37,339,000 36,241,000 35,565,000 34,684,000 34,431,000 33,956,000 33,006,000 31,630,000 31,727,000 31,217,000 31,318,000 31,460,000 
          deferred income taxes
        		7,058,000 4,538,000 19,146,000 24,470,000 59,797,000 6,008,000 16,247,000 10,040,000 2,821,000 2,548,000 9,364,000 -536,000 -2,718,000 -11,931,000 -6,849,000 14,225,000 4,270,000 6,387,000 18,567,000 7,310,000 1,396,000 2,923,000 6,856,000 4,208,000 -302,000 4,573,000 4,828,000 16,605,000 6,091,000 6,469,000 24,077,000 31,064,000 11,021,000 12,847,000 37,461,000 27,017,000 23,740,000 19,918,000 16,113,000 44,405,000 6,232,000 2,692,000 10,460,000 47,107,000 948,000 1,728,000 152,000 
          share-based compensation expense
        		3,781,000 3,868,000 3,656,000 3,275,000 3,730,000 3,611,000 3,117,000 2,925,000 2,954,000 3,484,000 2,821,000 2,455,000 2,587,000 3,004,000 2,695,000 2,422,000 2,397,000 3,092,000 2,587,000 2,364,000 2,350,000 2,828,000 2,261,000 2,161,000 2,242,000 2,957,000 1,954,000 2,000,000 2,115,000 2,135,000 1,945,000 1,946,000 1,979,000 2,530,000 2,421,000 1,878,000 1,890,000 3,350,000 4,101,000 5,324,000 179,000 1,200,000 2,484,000 1,962,000 2,002,000 1,855,000 1,794,000 
          provision for doubtful accounts
        		1,758,000 1,754,000 2,331,000 2,969,000 1,961,000 100,000 1,675,000 2,534,000 2,284,000 955,000 3,925,000 2,118,000 1,374,000 1,173,000 1,338,000 1,003,000 2,632,000 1,742,000 3,754,000 6,614,000 1,273,000 4,486,000 3,077,000 4,394,000 1,043,000 1,294,000 2,263,000  2,687,000 1,349,000 2,722,000 2,815,000 1,007,000 1,220,000 2,281,000 1,906,000 764,000 1,373,000 1,384,000 1,569,000 852,000 1,203,000 896,000 2,176,000 1,308,000 2,820,000 891,000 
          changes in assets and liabilities:
        		                                               
          accounts receivable
        		51,142,000 181,980,000 -40,690,000 -235,169,000 15,052,000 131,144,000 21,684,000 -172,931,000 54,658,000 258,209,000 56,336,000 -363,189,000 48,578,000 255,233,000 -154,278,000 -224,376,000 39,632,000 117,202,000 9,640,000 -202,822,000 30,835,000 90,956,000 22,608,000 -133,638,000 37,990,000 166,987,000 -44,924,000 -164,733,000 28,844,000 138,177,000 -7,447,000 -173,894,000 23,582,000 95,657,000 39,508,000 -187,790,000 9,441,000 78,520,000 19,801,000 -114,506,000 38,443,000 164,946,000 17,003,000 -193,175,000 55,046,000 203,885,000 -42,712,000 
          materials and supplies
        		-1,905,000 -7,567,000 3,681,000 2,730,000 -7,890,000 -6,153,000 -2,700,000 -2,731,000 -2,324,000 439,000 -2,160,000 -3,907,000 -4,147,000 -8,632,000 705,000 -2,254,000 -563,000 -928,000 1,619,000 2,726,000 -906,000 -1,196,000 2,342,000 1,056,000 -6,444,000 -3,449,000 -2,562,000 -3,970,000 -4,239,000 -1,062,000 4,610,000 -883,000 -1,913,000 -2,588,000 -204,000 -3,986,000 2,520,000 -2,910,000 3,617,000 75,000 -1,718,000       
          natural gas in storage
        		-63,597,000 -65,762,000 92,498,000 19,611,000 -42,505,000 -27,839,000 76,646,000 17,310,000 -59,665,000 -45,776,000 170,239,000 74,172,000 -145,071,000 -119,361,000 100,701,000 -12,868,000 -81,030,000 -41,427,000 49,625,000 11,431,000 -33,185,000 -24,160,000 56,227,000 14,191,000 -30,215,000 -36,760,000 55,820,000 19,186,000 -45,999,000 -29,926,000 79,598,000 27,487,000 -42,645,000 -23,765,000 34,201,000 18,798,000 -40,489,000 -23,188,000 61,600,000 17,759,000 -40,021,000 -38,614,000 104,023,000 32,020,000 -65,275,000 -70,391,000 84,474,000 
          asset removal costs
        		-15,269,000 -9,629,000 -11,089,000 -10,817,000 -16,475,000 -19,039,000 -12,621,000 -13,244,000 -16,228,000 -18,984,000 -13,567,000 -12,646,000 -13,467,000 -11,365,000 -9,554,000 -13,834,000 -13,820,000 -11,490,000 -9,885,000 -11,814,000 -9,951,000 -9,180,000 -9,888,000 -9,683,000 -13,777,000 -13,155,000 -11,169,000 -13,660,000 -13,421,000 -18,338,000 -7,436,000 -14,448,000 -15,091,000 -12,450,000 -10,387,000 -12,715,000 -13,043,000 -13,501,000 -14,171,000 -17,864,000 -12,842,000 -12,734,000 -8,168,000 -12,162,000 -13,406,000 -13,450,000 -8,107,000 
          accounts payable
        		-8,978,000 -48,722,000 -72,871,000 101,371,000 -14,890,000 -33,378,000 -68,117,000 99,617,000 9,305,000 -41,435,000 -157,533,000 170,319,000 8,483,000 -36,024,000 -56,863,000 124,451,000 -30,763,000 -73,683,000 87,202,000 79,224,000 72,000 -16,693,000 -34,227,000 54,372,000 -4,325,000 -56,168,000 -53,172,000 100,742,000 4,571,000 -12,019,000 -56,409,000 67,928,000 3,009,000 -15,035,000 -53,957,000 60,519,000 9,974,000 -2,837,000 -40,060,000 45,313,000 -12,577,000 -38,594,000 -53,777,000 63,182,000 -3,671,000 -72,483,000 6,091,000 
          accrued taxes other than income
        		14,239,000 -18,404,000 2,245,000 3,779,000 15,811,000 -8,387,000 -4,388,000 1,266,000 13,127,000 -21,748,000 -2,204,000 4,965,000 15,204,000 -16,970,000 8,118,000 -2,339,000 13,284,000 -9,769,000 2,059,000 6,068,000 15,810,000 -4,852,000 -1,182,000 751,000 9,893,000 -14,591,000 4,263,000 -1,120,000 13,829,000 -12,540,000 6,147,000 -3,334,000 11,096,000 -3,869,000 -5,140,000 2,652,000 8,243,000 -6,108,000 535,000 -3,180,000 6,230,000 -13,660,000 3,117,000 1,256,000 4,845,000 -17,910,000 24,125,000 
          customer deposits
        		2,654,000 -915,000 -1,320,000 -16,294,000 12,294,000 2,179,000 -4,123,000 -4,806,000 12,358,000 -1,832,000 -1,387,000 -4,151,000 1,728,000 -828,000 -1,349,000 3,021,000 2,668,000 -476,000 -10,787,000 12,709,000 -1,630,000 -1,323,000 285,000 456,000 -1,300,000 -3,570,000 1,218,000 -386,000 320,000 -612,000 1,050,000 1,168,000 -880,000 -1,422,000 736,000 784,000 -1,013,000 -985,000 2,098,000 1,994,000 -848,000 -1,677,000 853,000 2,686,000 251,000 -1,718,000 1,424,000 
          regulatory assets and liabilities - current
        		-22,995,000 4,457,000 73,872,000 15,222,000 -30,555,000 -16,976,000 -58,520,000 -10,635,000 -17,749,000 30,048,000 5,585,000 36,093,000 -27,373,000 7,323,000 36,374,000 -1,288,915,000 -287,238,000 -6,887,000 20,466,000                             
          regulatory assets and liabilities - noncurrent
        		2,422,000 11,773,000 9,425,000 5,980,000 4,548,000 6,306,000 2,520,000 10,202,000 2,450,000 4,346,000 21,871,000 -6,658,000 4,515,000 -9,867,000 66,002,000                                 
          other assets and liabilities - current
        		15,610,000 -621,000 -11,650,000 50,054,000 -32,019,000 4,186,000 -39,312,000 18,414,000 -4,500,000 8,583,000 3,573,000 -326,000 -31,285,000 20,672,000 -12,438,000 28,998,000 -6,142,000 16,303,000 -20,698,000                             
          other assets and liabilities - noncurrent
        		-2,310,000 3,253,000 7,102,000 -7,348,000 -5,398,000 1,110,000 265,000 -4,270,000 667,000 603,000 952,000 -11,790,000 1,224,000 19,496,000 -23,037,000  10,248,000 -4,403,000 -14,729,000                             
          cash from operating activities
        		87,009,000 171,350,000 277,459,000 62,630,000 54,855,000 142,664,000 108,262,000 97,008,000 93,782,000 279,676,000 469,066,000 15,016,000 1,269,149,000 179,041,000 107,636,000 24,920,000 16,771,000 81,917,000 -1,659,265,000 39,171,000 46,644,000 95,952,000 182,733,000 21,802,000 47,372,000 118,880,000 122,291,000 30,926,000 36,811,000 176,673,000 223,284,000 -48,604,000 23,133,000 117,035,000 162,236,000 137,000 14,117,000 87,274,000 180,039,000 44,669,000 6,986,000 101,462,000 241,090,000 -3,345,000 -11,688,000 79,598,000 182,098,000 
          investing activities
        		                                               
          capital expenditures
        		-192,368,000 -180,468,000 -166,597,000 -179,575,000 -181,220,000 -175,619,000 -166,751,000 -176,296,000 -168,107,000 -171,201,000 -151,030,000 -196,967,000 -161,459,000 -137,753,000 -113,307,000 -147,545,000 -130,662,000 -117,946,000 -99,093,000 -122,430,000 -113,972,000 -121,426,000 -113,517,000 -111,525,000 -121,448,000 -101,046,000 -83,303,000 -115,104,000 -103,512,000 -89,235,000 -86,599,000 -107,304,000 -94,391,000 -84,195,000 -70,471,000 -77,735,000 -86,576,000 -69,499,000 -75,261,000 -94,642,000 -74,253,000 -70,511,000 -54,914,000 -72,484,000 -76,002,000 -82,886,000 -65,731,000 
          free cash flows
        		-105,359,000 -9,118,000 110,862,000 -116,945,000 -126,365,000 -32,955,000 -58,489,000 -79,288,000 -74,325,000 108,475,000 318,036,000 -181,951,000 1,107,690,000 41,288,000 -5,671,000 -122,625,000 -113,891,000 -36,029,000 -1,758,358,000 -83,259,000 -67,328,000 -25,474,000 69,216,000 -89,723,000 -74,076,000 17,834,000 38,988,000 -84,178,000 -66,701,000 87,438,000 136,685,000 -155,908,000 -71,258,000 32,840,000 91,765,000 -77,598,000 -72,459,000 17,775,000 104,778,000 -49,973,000 -67,267,000 30,951,000 186,176,000 -75,829,000 -87,690,000 -3,288,000 116,367,000 
          other investing expenditures
        		-3,978,000 -1,648,000 -2,427,000 -6,642,000 -1,379,000 -1,122,000 -1,259,000 -5,314,000 -1,547,000 -1,355,000 -292,000 -6,213,000 -1,087,000 -724,000 -608,000 -4,180,000 -553,000 -470,000 -2,351,000 -1,425,000 -564,000 -501,000 -314,000 -2,953,000 -473,000                       
          other investing receipts
        		1,000,000 1,450,000 1,179,000 950,000 2,147,000 946,000 2,029,000 1,378,000 1,659,000 1,019,000 1,443,000 1,313,000 1,804,000 342,000 549,000 41,000 960,000 475,000 241,000 1,295,000 1,742,000 90,000 650,000 363,000 438,000                       
          cash from investing activities
        		-195,346,000 -180,666,000 -167,845,000 -185,267,000 -180,452,000 -175,795,000 -165,981,000 -180,232,000 -167,995,000 -171,537,000 -149,879,000 -201,867,000 -160,742,000 -138,135,000 -113,366,000 -151,684,000 -130,255,000 -117,941,000 -101,203,000 -122,560,000 -112,794,000 -121,837,000 -113,181,000 -114,115,000 -121,483,000 -100,991,000 -86,343,000 -115,104,000 -103,512,000 -89,235,000 -86,599,000 -107,303,000 -94,251,000 -83,779,000 -70,410,000 -77,735,000 -86,576,000 -69,399,000 -74,869,000 -94,642,000 -74,253,000 -70,511,000 -54,914,000 -72,484,000 -76,002,000 -82,886,000 -65,731,000 
          financing activities
        		                                               
          borrowings (repayments) of notes payable
        		-108,000,000 60,500,000 -102,700,000 -36,800,000 -80,100,000 78,100,000 864,900,000                                         
          issuance of other long-term debt, net of premiums
        		                                               
          long-term debt financing costs
        		           -5,872,000    0 0 0 -35,110,000 0 0                       -9,000 -20,000 -155,000 -10,903,000 
          repayment of other long-term debt
        		-2,000 -4,000 -4,000 -13,000 0 0 -773,000,000                                         
          repayment of securitized utility tariff bonds
        		-14,946,000 0 -14,547,000 0 -14,159,000 0 -13,780,000 0                                        
          issuance of common stock
        		0   249,011,000 0   82,083,000 1,000   96,607,000 0 2,636,000 34,468,000 2,558,000 5,982,000   3,058,000 13,026,000   2,580,000 0   2,413,000 0   2,249,000 0   2,034,000 0   2,580,000 0 2,315,000 2,156,000 671,000 637,000 676,000 17,000 
          dividends paid
        		-40,199,000 -40,153,000 -40,153,000 -37,392,000 -37,392,000 -37,336,000 -37,336,000 -36,045,000 -36,043,000 -36,004,000 -36,002,000 -33,568,000 -33,565,000 -33,536,000 -33,285,000 -31,080,000 -31,047,000 -30,903,000 -30,882,000 -28,674,000 -28,608,000 -28,547,000 -28,543,000 -26,369,000 -26,368,000 -26,344,000 -26,343,000 -24,162,000 -24,160,000 -24,135,000 -24,137,000 -21,955,000 -21,954,000 -22,008,000 -22,034,000 -18,286,000 -18,285,000 -18,258,000 -18,380,000 -15,648,000 -15,645,000 -15,760,000 -15,773,000 -14,575,000 -14,568,000   
          tax withholdings related to net share settlements of stock compensation
        		-20,000 -55,000 -2,559,000 -13,000 -111,000 -7,000 -980,000 -90,000 -179,000 2,000 -2,386,000 -86,000 -57,000 -3,000 -3,023,000 -329,000 -54,000 -36,000 -4,292,000 -89,000 -38,000 -152,000 -5,988,000 -107,000 -73,000 -95,000 -7,300,000 -4,000 -289,000 -42,000 -7,817,000 -61,000 -169,000 -106,000 -9,180,000             
          cash from financing activities
        		86,401,000 23,849,000 -159,963,000 172,416,000 121,889,000 44,125,000 39,804,000 104,573,000 52,913,000 -95,727,000 -310,388,000 194,612,000 -1,105,426,000 -45,968,000 9,325,000 129,149,000 -89,119,000 -459,817,000 2,457,386,000 85,198,000 61,880,000 25,270,000 -76,336,000 97,604,000 75,559,000 -26,403,000 -37,643,000 93,071,000 66,551,000 -119,394,000 -106,562,000 163,448,000 72,877,000 -41,349,000 -93,283,000 87,748,000 22,715,000 -16,275,000 -54,946,000 -568,000 -15,645,000 -37,567,000 -55,617,000 28,087,000 -13,951,000 -14,032,000 59,108,000 
          change in cash, cash equivalents, restricted cash and restricted cash equivalents
        		-21,936,000 14,533,000 -50,349,000 49,779,000 -3,708,000 10,994,000 -17,915,000 21,349,000 -21,300,000 12,412,000 8,799,000                                     
          cash, cash equivalents, restricted cash and restricted cash equivalents at beginning of period
        		0 0 78,537,000 0 0 0 39,387,000 0 0 0 18,127,000                                     
          cash, cash equivalents, restricted cash and restricted cash equivalents at end of period
        		-21,936,000 14,533,000 28,188,000 49,779,000 -3,708,000 10,994,000 21,472,000 21,349,000 -21,300,000 12,412,000 26,926,000                                     
          supplemental cash flow information:
        		                                               
          cash paid for interest, net of amounts capitalized
        		33,954,000 33,704,000 36,268,000 38,320,000 40,466,000 28,704,000 41,497,000 1,928,000 31,025,000 14,044,000 33,729,000                                     
          cash received for state income taxes
        		                                               
          cash paid for federal income taxes
        		750,000                                               
          cash paid for state income taxes
        		                                               
          proceeds from government securitization of winter weather event costs
        		       0 0 0 197,366,000                                     
          income tax receivable
        		                                  1,397,000 5,555,000 -6,244,000 -708,000 38,877,000 -15,152,000 -11,569,000 -6,566,000 38,210,000     
          issuance of other long-term debt, net of premiums and discounts
        		                                               
          issuance of securitized utility tariff bonds, net of discounts
        		                                               
          cash paid for other state income taxes
        		                                               
          cash paid for state income taxes - oklahoma
        		                                               
          cash paid for income taxes
        		    0 1,565,000 -2,797,000 3,793,000 7,877,000 11,044,000 -1,870,000                                     
          issuance of other long-term debt, net of discounts
        		                                               
          repayments of notes payable
        		        109,850,000                 -2,500,000 -4,000,000  91,000,000 -97,607,000 -74,608,000   -6,400,000 -59,600,000   0 -12,500,000  0       
          borrowings (repayments) on notes payable
        		          -272,000,000       -447,000,000 28,775,000                             
          employee benefit obligation
        		                                               
          borrowings (repayment) on notes payable
        		                                               
          proceeds from securitization of winter weather event costs
        		                                               
          borrowings (repayments) on short-term debt
        		            -66,700,000 -15,065,000 11,165,000                                 
          issuance of debt, net of discounts
        		               0 0 0 2,498,895,000 678,000 0                       0 0 0 1,199,994,000 
          repayment of long-term debt
        		               0                                
          change in cash and cash equivalents
        		            2,981,000 -5,062,000 3,595,000 2,385,000 -202,603,000 -495,841,000 696,918,000 1,809,000 -4,270,000 -615,000 -6,784,000 5,291,000 1,448,000 -8,514,000 -1,695,000 8,893,000 -150,000 -31,956,000 30,123,000 7,541,000 1,759,000 -8,093,000 -1,457,000 10,150,000 -49,744,000 1,600,000 50,224,000 -50,541,000 -82,912,000 -6,616,000 130,559,000 -47,742,000 -101,641,000 -17,320,000 175,475,000 
          cash and cash equivalents at beginning of period
        		            0 0 8,852,000 0 0 0 7,993,000 0 0 0 17,853,000 0 0 0 21,323,000 0 0 0 14,413,000 0 0 0 14,663,000 0 0 0 2,433,000 0 0 0 11,943,000 0 0 0 3,171,000 
          cash and cash equivalents at end of period
        		            2,981,000 -5,062,000 12,447,000 2,385,000 -202,603,000 -495,841,000 704,911,000 1,809,000 -4,270,000 -615,000 11,069,000 5,291,000 1,448,000 -8,514,000 19,628,000 8,893,000 -150,000 -31,956,000 44,536,000 7,541,000 1,759,000 -8,093,000 13,206,000 10,150,000 -49,744,000 1,600,000 52,657,000 -50,541,000 -82,912,000 -6,616,000 142,502,000 -47,742,000 -101,641,000 -17,320,000 178,646,000 
          regulatory assets and liabilities - non-current
        		                 15,194,000 -1,946,526,000                             
          other assets and liabilities - non-current
        		                                               
          accrued interest
        		                           11,057,000 -11,161,000 11,361,000 -11,109,000 11,034,000 -11,216,000 11,291,000 -11,187,000 11,163,000 -11,235,000 11,272,000 -11,219,000 11,226,000 -11,241,000       
          accrued liabilities
        		                           6,326,000 3,244,000 7,889,000 -17,223,000 11,523,000 2,333,000 3,728,000 -10,457,000 5,119,000 2,498,000 314,000 -16,470,000 13,470,000 3,349,000 1,003,000 -12,371,000 5,251,000    
          regulatory assets and liabilities
        		                    -20,696,000 -8,714,000 4,932,000 8,007,000 -5,752,000 -3,142,000 29,090,000 9,169,000 -5,699,000 22,243,000 83,724,000 17,802,000 -8,334,000 1,141,000 18,641,000 -30,746,000 -15,760,000 -2,373,000 -593,000 -13,710,000 5,377,000 -4,443,000 63,434,000 6,759,000 4,695,000 7,547,000 11,066,000 
          other assets and liabilities
        		                    -7,801,000 -11,835,000 -9,748,000 13,631,000 -4,609,000 4,491,000 -2,824,000 12,263,000 -991,000 1,371,000 -10,690,000 3,568,000 -8,035,000 -9,327,000 3,447,000 45,996,000 -6,147,000 -30,729,000 14,999,000 9,346,000 -4,187,000 5,779,000 -17,085,000 25,161,000 -30,892,000 -3,478,000 -6,601,000 
          repayments on notes payable
        		                     -244,195,000 -41,805,000                    -42,000,000     
          other
        		                          -3,040,000     1,000 140,000 416,000 61,000 0 0 100,000 392,000         
          repurchase of common stock
        		                               0 0 -15,043,000 -2,469,000 0 0 0 -24,066,000 0 0       
          benefit from doubtful accounts
        		                                               
          cash paid (received) for income taxes
        		                                               
          cash received for income taxes
        		                                               
          cash payment to oneok upon separation
        		                                           0 0 0 -1,130,000,000 
          affiliate payable
        		                                               
          proceeds from sale of assets
        		                                               
          settlement of short-term notes payable to oneok
        		                                               
          borrowings on notes payable
        		                                               
          distributions to oneok
        		                                               
          cash paid to oneok for interest, net of amounts capitalized
        		                                               
          cash paid to oneok for income taxes
        		                                               
          current income taxes payable
        		                                              18,965,000 
          borrowings on long-term line of credit with oneok
        		                                               
          increase in short-term notes payable to oneok
        		                                               
          cash paid to (received from) oneok for income taxes