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OGE Energy Corp
(NYSE:OGE) 

OGE stock logo

OGE Energy Corp., together with its subsidiaries, operates as an energy and energy services provider that offers physical delivery and related services for electricity and natural gas primarily in the south-central United States. It operates in two segments, Electric Utility and Natural Gas Midstrea...

Founded: 1902
Full Time Employees: 2,425
CEO: Sean Trauschke  
Sector: Utilities
Industry: Utilities-Regulated Electric
Utilities
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Quarterly
Annual
    Unit: USD2026-03-31 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 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 
                                                                
      operating revenues
    		752,600,000 1,045,000,000 741,600,000 747,700,000 760,500,000 965,400,000 662,600,000 596,800,000 566,700,000 945,400,000 605,000,000 557,200,000 711,900,000 1,270,800,000 803,700,000 589,300,000 581,300,000 864,400,000 577,400,000 1,630,600,000 485,400,000 702,100,000 503,500,000 431,300,000 439,775,000 755,400,000 513,700,000 490,000,000 439,625,000 698,800,000 567,000,000 492,700,000 501,900,000 716,800,000 586,400,000 456,000,000 530,800,000 743,900,000 551,400,000 433,100,000 447,100,000 719,800,000 549,900,000 480,100,000                 
      revenues from contracts with customers
    		736,700,000 1,028,400,000 719,700,000 741,100,000 744,700,000 945,200,000 644,100,000 582,600,000 550,500,000 923,000,000 589,200,000 544,600,000 684,500,000 1,250,600,000 791,000,000 578,100,000 555,000,000 848,200,000 564,500,000 1,621,000,000 469,600,000 687,800,000 492,000,000 420,400,000 429,425,000 739,200,000 501,100,000 477,400,000 427,525,000 684,500,000 547,700,000 477,900,000                             
      other revenues
    		15,900,000 16,600,000 21,900,000 6,600,000 15,800,000 20,200,000 18,500,000 14,200,000 16,200,000 22,400,000 15,800,000 12,600,000 27,400,000 20,200,000 12,700,000 11,200,000 26,300,000 16,200,000 12,900,000 9,600,000 15,800,000 14,300,000 11,500,000 10,900,000 10,350,000 16,200,000 12,600,000 12,600,000 12,100,000 14,300,000 19,300,000                              
      fuel, purchased power and direct transmission expense
    		336,700,000 388,500,000 261,100,000 324,000,000 300,200,000 350,100,000 193,900,000 232,200,000 195,500,000 333,800,000 181,800,000 200,600,000 339,600,000 673,800,000 393,300,000 255,700,000 250,700,000 330,100,000 200,000,000                                          
      operating expenses
    		302,800,000 315,200,000 293,900,000 290,400,000 278,100,000 302,100,000 292,800,000 290,600,000 275,000,000 280,500,000 276,800,000 280,100,000 280,400,000 279,100,000 253,800,000 250,500,000 249,300,000 249,500,000 247,900,000 235,200,000 239,800,000 235,000,000 240,700,000 240,000,000 174,950,000 247,100,000 225,000,000 227,700,000 224,900,000 227,100,000 226,600,000                              
      other operation and maintenance
    		136,500,000 143,300,000 127,100,000 121,800,000 120,200,000 131,400,000 130,400,000 132,400,000 121,200,000 122,700,000 128,300,000 130,400,000 136,900,000 131,400,000 118,100,000 115,000,000 119,200,000 115,400,000 119,200,000 109,300,000 115,600,000 109,700,000 117,500,000 120,000,000 92,150,000 129,800,000 119,800,000 119,000,000 88,300,000 123,300,000 123,200,000 118,800,000 89,125,000 117,700,000 114,800,000 124,000,000 88,650,000 113,100,000 127,600,000 113,900,000 83,575,000 109,400,000 113,200,000 111,700,000 82,975,000 108,100,000 111,400,000 112,400,000 93,050,000 102,200,000 122,000,000 148,000,000 153,800,000 147,100,000 153,000,000 147,600,000 148,900,000 147,400,000 146,600,000 138,300,000 
      depreciation and amortization
    		136,400,000 146,700,000 140,600,000 137,400,000 130,800,000 144,000,000 135,500,000 129,200,000 128,800,000 132,500,000 124,100,000 121,200,000 119,500,000 122,400,000 111,600,000 107,400,000 105,800,000 108,600,000 102,900,000 98,700,000 99,100,000 100,500,000 97,300,000 94,400,000 65,200,000 94,100,000 84,300,000 82,400,000 60,200,000 81,100,000 80,900,000 78,800,000 51,800,000 76,900,000 74,700,000 55,600,000 60,200,000 82,200,000 80,100,000 78,500,000 57,500,000 77,900,000 76,200,000 75,900,000 51,800,000 71,700,000 68,300,000 67,200,000 57,925,000 65,400,000 74,400,000 91,900,000 100,900,000 93,000,000 90,500,000 86,600,000 81,300,000 77,100,000 74,700,000 74,000,000 
      taxes other than income
    		29,900,000 25,200,000 26,200,000 31,200,000 27,100,000 26,700,000 26,900,000 29,000,000 25,000,000 25,300,000 24,400,000 28,500,000 24,000,000 25,300,000 24,100,000 28,100,000 24,300,000 25,500,000 25,800,000 27,200,000 25,100,000 24,800,000 25,900,000 25,600,000 17,600,000 23,200,000 20,900,000 26,300,000 17,325,000 22,700,000 22,500,000 24,100,000 17,100,000 23,200,000 21,300,000 23,900,000 16,625,000 21,500,000 20,100,000 24,900,000 17,200,000 21,900,000 22,400,000 24,500,000 16,625,000 21,500,000 19,400,000 25,600,000 19,525,000 21,700,000 23,300,000 33,100,000 25,500,000 29,700,000 24,800,000 30,200,000 23,700,000 24,400,000 24,500,000 27,100,000 
      operating income
    		113,100,000 341,300,000 186,600,000 133,300,000 182,200,000 313,200,000 175,900,000 74,000,000 96,200,000 331,100,000 146,400,000 76,500,000 91,900,000 317,900,000 156,600,000 83,100,000 81,300,000 284,800,000 129,500,000 48,600,000 82,500,000 258,000,000 125,400,000 56,300,000 108,500,000 274,300,000 110,000,000 49,700,000 58,000,000 227,300,000 131,700,000 60,500,000 79,700,000 243,300,000 143,500,000 43,800,000 82,200,000 257,300,000 125,900,000 37,900,000 46,800,000 250,800,000 127,200,000 56,400,000 85,100,000 248,100,000 141,800,000 61,800,000 -480,199,446.5 260,900,000 143,900,000 75,400,000 97,300,000 304,000,000 177,300,000 98,300,000 96,900,000 299,700,000 182,200,000 67,900,000 
      yoy
    		-37.93% 8.97% 6.08% 80.14% 89.40% -5.41% 20.15% -3.27% 4.68% 4.15% -6.51% -7.94% 13.04% 11.62% 20.93% 70.99% -1.45% 10.39% 3.27% -13.68% -23.96% -5.94% 14.00% 13.28% 87.07% 20.68% -16.48% -17.85% -27.23% -6.58% -8.22% 38.13% -3.04% -5.44% 13.98% 15.57% 75.64% 2.59% -1.02% -32.80% -45.01% 1.09% -10.30% -8.74% -117.72% -4.91% -1.46% -18.04% -593.52% -14.18% -18.84% -23.30% 0.41% 1.43% -2.69% 44.77%     
      qoq
    		-66.86% 82.90% 39.98% -26.84% -41.83% 78.06% 137.70% -23.08% -70.95% 126.16% 91.37% -16.76% -71.09% 103.00% 88.45% 2.21% -71.45% 119.92% 166.46% -41.09% -68.02% 105.74% 122.74% -48.11% -60.44% 149.36% 121.33% -14.31% -74.48% 72.59% 117.69% -24.09% -67.24% 69.55% 227.63% -46.72% -68.05% 104.37% 232.19% -19.02% -81.34% 97.17% 125.53% -33.73% -65.70% 74.96% 129.45% -112.87% -284.05% 81.31% 90.85% -22.51% -67.99% 71.46% 80.37% 1.44% -67.67% 64.49% 168.34%  
      other income
    		13,600,000 6,100,000 17,200,000 7,000,000 10,400,000 6,800,000 8,900,000 4,500,000 10,100,000 8,500,000 12,700,000 16,900,000 14,000,000 16,100,000 21,900,000 22,600,000 11,400,000 5,600,000 6,300,000 3,000,000 10,500,000 5,500,000 14,100,000 7,400,000 4,075,000 4,600,000 5,000,000 6,700,000 7,500,000 4,100,000 4,700,000 5,400,000 12,300,000 15,000,000 10,300,000 8,800,000 7,100,000 5,700,000 7,600,000 5,600,000 7,600,000 8,900,000 5,600,000 4,900,000 6,100,000 7,200,000 3,100,000 1,400,000 -25,399,968.2 6,200,000 4,500,000 14,600,000 4,700,000 2,200,000 2,400,000 7,700,000 8,200,000 -2,200,000 7,000,000 6,300,000 
      allowance for equity funds used during construction
    		7,500,000 6,300,000 6,000,000 7,000,000 7,300,000 6,900,000 6,600,000 4,700,000 5,300,000 4,500,000 5,100,000 4,500,000 2,300,000 2,400,000 900,000 1,300,000 1,900,000 1,900,000 1,600,000 1,300,000 1,100,000 1,100,000 1,300,000 1,300,000 925,000 1,000,000 1,200,000 1,500,000 3,800,000 6,700,000 6,300,000 7,000,000 12,500,000 11,800,000 8,500,000 6,900,000 5,000,000 3,900,000 3,700,000 1,600,000 2,900,000 2,200,000 1,700,000 1,500,000 1,200,000 1,100,000 800,000 1,100,000 -4,399,993.4 1,700,000 1,500,000 1,200,000 1,300,000 1,300,000 1,700,000 1,900,000 4,300,000 5,900,000 5,800,000 4,400,000 
      other net periodic benefit expense
    		-2,600,000              -2,700,000 -9,400,000 -1,800,000 -1,600,000 -1,300,000 -1,400,000 -400,000 -2,000,000 -1,000,000 -500,000 -2,175,000 -1,400,000 -300,000 -7,000,000                                 
      other expense
    		-12,300,000 -4,600,000 -5,200,000 -4,500,000 -8,300,000 -4,700,000 -6,600,000 -4,500,000 -10,200,000 -7,900,000 -4,400,000 -6,500,000 -11,500,000 -19,500,000 -8,400,000 -5,200,000 -27,400,000 -3,800,000 -6,700,000 -2,000,000 -11,300,000 -5,400,000 -12,400,000 -6,100,000 -3,900,000 -5,500,000 -4,400,000 -5,700,000 34,500,000 -3,400,000 -3,300,000 -4,400,000 23,400,000 -2,000,000 -3,200,000 -4,100,000 27,700,000 -3,300,000 -5,800,000 -1,700,000 22,800,000 -5,300,000 -2,200,000 -1,000,000 25,600,000 -5,800,000 -2,100,000 -3,300,000 15,900,022.2 -5,200,000 -4,200,000 -6,500,000 -5,400,000 -5,600,000 -3,600,000 -1,900,000 -9,500,000 -6,400,000 -3,500,000 -2,300,000 
      net other income
    		6,200,000 5,100,000 15,100,000 6,900,000 2,200,000 10,700,000 10,500,000 6,400,000 6,700,000 6,600,000 14,500,000 16,400,000 3,700,000 38,700,000 -27,900,000 291,600,000 361,800,000 43,300,000 33,400,000 54,100,000 35,700,000 15,000,000 28,900,000 -744,400,000 25,125,000 37,000,000 37,300,000 26,200,000 28,925,000 46,800,000 37,800,000 43,200,000 37,650,000 58,400,000 45,000,000 47,200,000 24,200,000 40,800,000 22,200,000 33,800,000 1,075,000 -66,100,000 33,300,000 37,100,000 33,850,000 47,200,000 41,100,000 47,100,000 19,600,000 48,700,000 20,300,000 9,400,000 700,000 -1,700,000 600,000 7,700,000 3,100,000 -2,500,000 9,400,000 8,500,000 
      interest expense
    		59,900,000 69,600,000 72,200,000 67,300,000 65,200,000 64,200,000 64,900,000 60,200,000 58,500,000 57,400,000 57,700,000 47,800,000 41,600,000 42,200,000 42,400,000 40,100,000 39,500,000 39,500,000 39,900,000 39,400,000 39,600,000 39,800,000 40,800,000 38,300,000 27,525,000 39,600,000 35,900,000 34,600,000 37,800,000 38,700,000 40,900,000 38,600,000 35,800,000 35,900,000 37,100,000 35,000,000 34,400,000 35,400,000 36,000,000 36,300,000 36,600,000 37,000,000 38,000,000 37,400,000 35,900,000 37,200,000 39,400,000 35,900,000 -112,199,852.5 33,700,000 37,300,000 41,200,000 42,000,000 41,600,000 40,400,000 40,100,000 36,800,000 35,500,000 34,500,000 34,100,000 
      interest on long-term debt
    		66,300,000 66,400,000 66,600,000 61,400,000 61,800,000 59,600,000 54,900,000 52,000,000 52,000,000 52,000,000 52,900,000 48,100,000 42,400,000 40,800,000 39,500,000 39,400,000 39,300,000 39,300,000 37,800,000 38,400,000 38,700,000 38,700,000 38,800,000 36,600,000 25,475,000 37,500,000 31,800,000 32,600,000 29,875,000 40,200,000 39,700,000 39,600,000 28,450,000 38,700,000 39,200,000 35,900,000 26,825,000 35,800,000 35,700,000 35,800,000 27,725,000 37,000,000 37,000,000 36,900,000 27,300,000 36,300,000 37,800,000 35,100,000 27,675,000 35,000,000 36,000,000 39,700,000 40,600,000 40,200,000 38,900,000 39,200,000 37,500,000 37,400,000 35,800,000 35,400,000 
      allowance for borrowed funds used during construction
    		-3,600,000 -3,700,000 -3,700,000 -4,500,000 -3,900,000 -3,900,000 -3,400,000 -3,400,000 -1,800,000 -1,900,000 -1,300,000 -2,100,000 -1,300,000 -600,000 -900,000 -1,200,000 -1,000,000 -1,000,000 -700,000 -800,000 -400,000 -500,000 -500,000 -500,000 -550,000 -600,000 -600,000 -1,000,000 -2,450,000 -3,300,000 -2,800,000 -3,700,000 -3,150,000 -5,200,000 -4,100,000 -3,300,000 -1,175,000 -2,000,000 -1,800,000 -900,000 -675,000 -1,100,000 -800,000 -800,000 -425,000 -600,000 -500,000 -600,000 -575,000 -900,000 -700,000 -700,000 -700,000 -800,000 -900,000 -1,100,000 -2,300,000 -2,900,000 -2,900,000 -2,300,000 
      interest on short-term debt and other interest charges
    		-2,800,000 6,900,000 9,300,000 10,400,000 7,300,000 8,500,000 13,400,000 11,600,000 8,300,000 7,300,000 6,100,000 1,800,000 500,000 2,000,000 3,800,000 1,900,000 1,200,000 1,200,000 2,800,000 1,800,000 1,300,000 1,600,000 2,500,000 2,200,000 2,600,000 2,700,000 4,700,000 3,000,000 2,125,000 1,800,000 4,000,000 2,700,000 1,700,000 2,400,000 2,000,000 2,400,000 1,275,000 1,600,000 2,100,000 1,400,000 1,050,000 1,100,000 1,800,000 1,300,000 1,250,000 1,500,000 2,100,000 1,400,000 950,000 -400,000 2,000,000 2,200,000 2,100,000 2,200,000 2,400,000 2,000,000 1,600,000 1,000,000 1,600,000 1,000,000 
      income before taxes
    		59,400,000 276,800,000 129,500,000 72,900,000 119,200,000 259,700,000 121,500,000 20,200,000 44,400,000 280,300,000 103,200,000 45,100,000 54,000,000 314,400,000 86,300,000 334,600,000 403,600,000 288,600,000 123,000,000 63,300,000 78,600,000 233,200,000 113,500,000 -726,400,000 106,100,000 271,700,000 111,400,000 41,300,000 107,275,000 235,400,000 128,600,000 65,100,000 118,300,000 265,800,000 151,400,000 56,000,000 102,550,000 262,700,000 112,100,000 35,400,000 81,575,000 147,700,000 122,500,000 56,100,000 118,650,000 258,100,000 143,500,000 73,000,000 111,600,000 275,900,000 126,900,000 43,600,000 56,000,000 260,700,000 137,500,000 65,900,000 63,200,000 261,700,000 157,100,000 42,300,000 
      income tax expense
    		9,200,000 45,500,000 22,000,000 10,200,000 17,300,000 41,000,000 19,200,000 1,600,000 -3,800,000 38,400,000 14,800,000 6,800,000 3,700,000 51,600,000 13,200,000 55,100,000 84,400,000 36,100,000 10,100,000 10,600,000 23,800,000 55,800,000 27,600,000  6,550,000 20,800,000 11,200,000 -5,800,000 13,900,000 30,300,000 17,900,000 10,100,000 -198,300,000 82,400,000 46,600,000 20,000,000 18,200,000 79,100,000 40,600,000 10,200,000 13,000,000 36,500,000 35,000,000 12,900,000 35,600,000 70,800,000 42,700,000 23,700,000 -110,199,869.7 60,700,000 33,900,000 15,600,000 12,500,000 68,300,000 35,900,000 18,400,000 20,000,000 80,300,000 47,800,000 12,600,000 
      net income
    		50,200,000 231,300,000 107,500,000 62,700,000 101,900,000 218,700,000 102,300,000 18,600,000 48,200,000 241,900,000 88,400,000 38,300,000 50,300,000 262,800,000 73,100,000 279,500,000 319,200,000 252,500,000 112,900,000 52,700,000 54,800,000 177,400,000 85,900,000 -491,800,000 99,550,000 250,900,000 100,200,000 47,100,000 92,700,000 205,100,000 110,700,000 55,000,000 294,800,000 183,400,000 104,800,000 36,000,000 57,900,000 183,600,000 71,500,000 25,200,000 29,400,000 111,200,000 87,500,000 43,200,000 58,400,000 187,300,000 100,800,000 49,300,000 -336,199,606.2 215,200,000 93,000,000 28,000,000 43,500,000 192,400,000 101,600,000 47,500,000 43,200,000 181,400,000 109,300,000 29,700,000 
      yoy
    		-50.74% 5.76% 5.08% 237.10% 111.41% -9.59% 15.72% -51.44% -4.17% -7.95% 20.93% -86.30% -84.24% 4.08% -35.25% 430.36% 482.48% 42.33% 31.43% -110.72% -44.95% -29.29% -14.27% -1144.16% 7.39% 22.33% -9.49% -14.36% -68.55% 11.83% 5.63% 52.78% 409.15% -0.11% 46.57% 42.86% 96.94% 65.11% -18.29% -41.67% -49.66% -40.63% -13.19% -12.37% -117.37% -12.96% 8.39% 76.07% -872.87% 11.85% -8.46% -41.05% 0.69% 6.06% -7.04% 59.93%     
      qoq
    		-78.30% 115.16% 71.45% -38.47% -53.41% 113.78% 450.00% -61.41% -80.07% 173.64% 130.81% -23.86% -80.86% 259.51% -73.85% -12.44% 26.42% 123.65% 114.23% -3.83% -69.11% 106.52% -117.47% -594.02% -60.32% 150.40% 112.74% -49.19% -54.80% 85.28% 101.27% -81.34% 60.74% 75.00% 191.11% -37.82% -68.46% 156.78% 183.73% -14.29% -73.56% 27.09% 102.55% -26.03% -68.82% 85.81% 104.46% -114.66% -256.23% 131.40% 232.14% -35.63% -77.39% 89.37% 113.89% 9.95% -76.19% 65.97% 268.01%  
      basic average common shares outstanding
    		206,300,000 201,500,000 201,300,000 201,200,000 100,000 200,900,000 200,800,000 200,400,000  200,300,000 200,300,000 200,200,000  200,200,000 200,200,000 200,200,000  200,200,000 200,200,000 200,100,000  200,100,000 200,200,000 200,200,000 50,025,000 200,200,000 200,200,000 199,900,000 49,925,000 199,700,000 199,700,000 199,700,000 49,925,000 199,700,000 199,700,000 199,700,000 49,925,000 199,700,000 199,700,000 199,700,000 49,900,000 199,700,000 199,600,000 199,500,000 49,775,000 199,300,000 199,200,000 198,800,000 49,525,000 198,400,000 198,300,000 98,900,000 100,000 98,700,000 98,600,000 98,300,000  98,000,000 98,000,000 97,700,000 
      diluted average common shares outstanding
    		207,200,000 202,100,000 202,100,000 201,900,000 100,000 201,500,000 201,400,000 200,600,000  201,000,000 200,800,000 200,800,000 100,000 200,900,000 200,700,000 200,600,000  200,400,000 200,400,000 200,100,000  200,400,000 200,500,000 200,200,000 50,150,000 200,800,000 200,600,000 200,500,000 50,100,000 200,600,000 200,500,000 200,200,000 50,000,000 200,100,000 199,900,000 200,000,000 49,950,000 199,900,000 199,800,000 199,700,000 49,900,000 199,700,000 199,600,000 199,500,000 49,975,000 200,200,000 200,000,000 199,500,000 49,825,000 199,700,000 199,400,000 99,400,000 200,000 99,100,000 98,900,000 98,800,000  99,300,000 99,300,000 99,100,000 
      basic earnings per average common share
    		240,000 1,150,000 530,000 310,000 510,000 1,090,000 510,000 90,000 240,000 1,210,000 440,000 190,000 260,000 1,310,000 370,000 1,400,000 1,590,000 1,260,000 560,000 260,000 270,000 890,000 430,000 -2,460,000 497,500 1,250,000 500,000 240,000 465,000 1,030,000 550,000 280,000 405,000 920,000 520,000 180,000 350,000 920,000 350,000 130,000 302,500 550,000 440,000 220,000                 
      diluted earnings per average common share
    		240,000 1,140,000 530,000 310,000 500,000 1,090,000 510,000 90,000 240,000 1,200,000 440,000 190,000 250,000 1,310,000 360,000 1,390,000 1,590,000 1,260,000 560,000 260,000 270,000 890,000 430,000 -2,460,000 495,000 1,250,000 500,000 240,000 462,500 1,020,000 550,000 270,000 405,000 920,000 520,000 180,000 350,000 920,000 350,000 130,000 302,500 550,000 440,000                  
      other net periodic benefit income
    		 -2,700,000 -2,900,000 -2,600,000 -7,200,000 1,700,000 1,600,000 1,700,000 1,500,000 1,500,000 1,100,000 1,500,000 -2,950,000 300,000               -2,675,000 -700,000 800,000                              
      gain on equity securities
    		             39,400,000 -39,600,000 282,300,000                                             
      equity in earnings of unconsolidated affiliates
    		                41,900,000 41,200,000 33,500,000 53,200,000 35,800,000 15,800,000 26,900,000 -746,500,000 26,200,000 38,300,000 35,800,000 30,700,000 49,500,000 40,100,000 29,300,000 33,900,000 32,600,000 33,600,000 29,400,000 35,600,000 22,300,000 34,500,000 16,700,000 28,300,000 27,500,000 -71,900,000 28,200,000 31,700,000 40,700,000 44,700,000 39,300,000 47,900,000 -64,499,898.1 46,000,000 18,500,000          
      cost of sales
    		                   1,346,800,000 163,100,000 209,100,000 137,400,000 135,000,000 156,325,000 234,000,000 178,700,000 212,600,000 228,900,000 244,400,000 208,700,000 210,500,000 201,100,000 255,700,000 232,100,000 208,700,000 234,700,000 269,800,000 197,700,000 177,900,000 182,700,000 259,800,000 210,900,000 211,600,000                 
      income tax benefit
    		                       -234,600,000                                     
      dividends declared per common share
    		                            257,500 365,000 332,500 332,500 332,500 332,500 302,500 302,500 302,500 302,500 275,000 275,000 275,000 275,000 250,000 250,000 250,000 250,000 225,000 225,000 -626,249.149 208,750 208,750 417,500 417,500 392,500 392,500 392,500 392,500 375,000 375,000 375,000 
      revenues from alternative revenue programs
    		                               14,800,000                             
      total operating expenses
    		                               221,700,000 158,025,000 217,800,000 210,800,000 203,500,000 165,475,000 216,800,000 227,800,000 217,300,000 158,275,000 209,200,000 211,800,000 212,100,000 151,400,000 201,300,000 199,100,000 205,200,000 170,500,000 189,300,000 219,700,000 273,000,000 280,300,000 269,800,000 268,400,000 257,100,000 252,200,000 253,900,000 245,800,000 239,400,000 
      other net periodic pension and postretirement benefit
    		                               1,300,000                             
      diluted earnings per average common shares
    		                                           220,000                 
      electric utility
    		                                            481,725,000 754,700,000 611,800,000 560,400,000             
      natural gas midstream operations
    		                                                            
      total operating revenues
    		                                            481,725,000 754,700,000 611,800,000 560,400,000 589,700,000 723,200,000 734,200,000 901,400,000 862,100,000 1,113,400,000 855,000,000 840,700,000 885,200,000 1,212,100,000 978,100,000 840,500,000 
      total cost of sales
    		                                            217,400,000 305,300,000 270,900,000 293,400,000             
      less: net income attributable to noncontrolling interests
    		                                                -6,199,993.8  1,300,000 4,900,000 5,000,000 6,900,000 7,700,000 10,400,000 6,800,000 2,700,000 6,300,000 4,900,000 
      net income attributable to oge energy
    		                                            58,400,000 187,300,000 100,800,000 49,300,000 -329,999,612.4 215,200,000 91,700,000 23,100,000 38,500,000 185,500,000 93,900,000 37,100,000 36,400,000 178,700,000 103,000,000 24,800,000 
      basic earnings per average common share attributable to oge energy common shareholders
    		                                            300,000 940,000 510,000 250,000 -1,669,998.04 1,080,000 460,000 230,000 390,000 1,880,000 950,000      
      diluted earnings per average common shares attributable to oge energy common shareholders
    		                                            422,500 940,000 500,000 250,000 415,000 1,080,000 460,000 230,000         
      electric utility operating revenues
    		                                                438,325,000 723,200,000 574,600,000 455,500,000 465,500,000 721,000,000 528,000,000 426,700,000 445,900,000 774,800,000 568,700,000 422,100,000 
      natural gas midstream operations operating revenues
    		                                                151,375,000  159,600,000 445,900,000 396,600,000 392,400,000 327,000,000 414,000,000 439,300,000 437,300,000 409,400,000 418,400,000 
      cost of goods sold
    		                                                            
      electric utility cost of goods sold
    		                                                178,800,000 273,000,000 242,800,000 199,400,000 182,900,000 259,800,000 192,700,000 183,600,000 193,300,000 322,700,000 242,500,000 207,500,000 
      natural gas midstream operations cost of goods sold
    		                                                120,350,000  127,800,000 353,600,000 301,600,000 279,800,000 216,600,000 301,700,000 342,800,000 335,800,000 307,600,000 325,700,000 
      total cost of goods sold
    		                                                299,150,000 273,000,000 370,600,000 553,000,000 484,500,000 539,600,000 409,300,000 485,300,000 536,100,000 658,500,000 550,100,000 533,200,000 
      gross margin on revenues
    		                                                290,550,000 450,200,000 363,600,000 348,400,000 377,600,000 573,800,000 445,700,000 355,400,000 349,100,000 553,600,000 428,000,000 307,300,000 
      impairment of assets
    		                                                    100,000  100,000 200,000 1,300,000 5,000,000   
      gain on insurance proceeds
    		                                                       -7,500,000     
      interest income
    		                                                   100,000 100,000 400,000 100,000  100,000 200,000 100,000 100,000 
      diluted earnings per average common share attributable to oge energy common shareholders
    		                                                    380,000 1,870,000 950,000      
      attributable to oge energy common shareholders
    		                                                       380,000 370,000 1,820,000 1,050,000 250,000 
      cost of goods sold (exclusive of depreciation and amortization
    		                                                            
      shown below)
    		                                                            
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 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 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 
                                                                  
        assets
      		                                                            
        current assets
      		                                                            
        cash and cash equivalents
      		200,000 300,000 500,000 26,900,000 600,000 9,900,000 100,000 4,300,000 200,000 2,800,000 300,000 307,000,000 88,100,000 456,200,000 4,900,000   1,500,000   1,100,000 32,000,000 67,500,000 145,900,000  13,200,000   94,300,000 90,700,000  2,300,000 14,400,000    300,000    75,200,000 43,300,000  1,500,000 5,500,000  2,200,000 2,400,000 6,800,000   7,100,000 1,800,000 10,200,000 1,700,000 1,600,000 4,600,000 5,600,000 5,100,000 4,000,000 
        accounts receivables
      		304,800,000 438,800,000 326,500,000 274,000,000 240,600,000 330,500,000 220,100,000 181,600,000 208,800,000 351,400,000 262,200,000 215,800,000 250,100,000 320,700,000 249,900,000 164,600,000 162,300,000 242,300,000 173,200,000 139,500,000 157,800,000 209,500,000 160,600,000 143,400,000 153,800,000 226,600,000 163,600,000 163,500,000 174,700,000 245,200,000 221,200,000 177,600,000 188,700,000 261,500,000 185,000,000 136,600,000 173,000,000 224,300,000 163,100,000 135,100,000 173,100,000 222,600,000 185,900,000 169,200,000 188,800,000 238,200,000 187,400,000 191,900,000 179,400,000 257,200,000 186,700,000 286,900,000 295,300,000 390,600,000 302,600,000 269,200,000 322,500,000 396,400,000 324,900,000 269,800,000 
        accrued unbilled revenues
      		67,900,000 93,700,000 105,600,000 90,000,000 74,600,000 88,200,000 108,900,000 63,200,000 72,700,000 86,200,000 94,100,000 65,100,000 74,200,000 81,500,000 97,200,000 62,300,000 65,000,000 82,500,000 94,700,000 59,900,000 67,600,000 71,900,000 93,700,000 58,900,000 64,700,000 87,600,000 86,200,000 54,600,000 62,600,000 68,300,000 87,800,000 57,800,000 66,500,000 69,800,000 86,700,000 56,200,000 59,700,000 71,000,000 90,900,000 51,400,000 53,500,000 77,900,000 86,300,000 46,500,000 55,500,000 72,000,000 82,300,000 51,700,000 58,700,000 70,700,000 83,200,000 49,600,000 57,400,000 62,500,000 84,600,000 53,300,000 59,300,000 66,600,000 96,600,000 50,500,000 
        income taxes receivable
      		35,700,000 100,000 200,000    6,600,000 19,000,000 18,200,000 6,500,000 6,800,000 14,800,000 20,700,000 100,000 2,500,000 1,000,000 2,600,000 500,000 4,100,000 6,400,000 8,100,000 900,000 500,000 800,000 10,900,000 12,600,000 6,300,000 15,200,000 9,900,000 13,500,000 7,800,000 6,300,000 5,800,000 17,000,000 14,800,000 13,400,000 19,400,000 17,700,000 14,600,000 17,400,000 17,200,000 18,400,000 16,300,000 15,100,000 16,000,000  3,100,000 5,600,000 5,600,000 5,600,000 10,700,000 7,200,000 7,200,000 7,300,000 17,100,000 8,300,000 8,300,000 8,300,000 4,700,000 4,700,000 
        fuel inventories
      		108,800,000 123,200,000 144,900,000 135,600,000 148,300,000 123,400,000 145,500,000 157,900,000 158,500,000 123,600,000 117,700,000 128,600,000 108,800,000 85,300,000 80,600,000 64,300,000 40,600,000 35,000,000 46,100,000 39,400,000 36,500,000 36,500,000 42,700,000 45,500,000 46,300,000 43,600,000 47,900,000 48,300,000 57,600,000 64,500,000 81,100,000 95,400,000 84,300,000 77,200,000 77,500,000 86,300,000 79,800,000 87,600,000 107,100,000 105,400,000 113,800,000 86,200,000 89,400,000 82,600,000 58,500,000 45,400,000 58,000,000 82,400,000 74,400,000 75,500,000 98,700,000 99,700,000 93,300,000 84,000,000 101,100,000 96,300,000 100,700,000 91,000,000 122,800,000 139,600,000 
        materials and supplies, at average cost
      		212,900,000 219,100,000 228,700,000 229,100,000 229,400,000 238,200,000 238,600,000 245,300,000 254,300,000 230,600,000 216,000,000 198,700,000 180,500,000 157,700,000 130,900,000 119,500,000 117,900,000 111,400,000 119,000,000 121,900,000 116,200,000 107,000,000 98,800,000 97,200,000 90,600,000 93,500,000 86,900,000 112,800,000 126,700,000 132,200,000 130,300,000 101,400,000 80,800,000 80,200,000 82,900,000 82,900,000 81,700,000 75,400,000 75,600,000 78,300,000 80,100,000 76,700,000 77,700,000 78,700,000 78,900,000 79,000,000 77,800,000 76,700,000 80,700,000 79,500,000 81,500,000 82,200,000 80,900,000 90,900,000 90,400,000 88,300,000 87,200,000 89,600,000 85,400,000 86,400,000 
        other
      		78,200,000 74,000,000 65,000,000 88,600,000 88,900,000 63,000,000 67,500,000 53,700,000 58,800,000 51,000,000 55,700,000 101,000,000 103,500,000 104,100,000 866,000,000 63,400,000 73,300,000 55,600,000 47,100,000 43,800,000 41,200,000 30,700,000 35,200,000 30,800,000 24,400,000 23,300,000 34,000,000 35,200,000 29,500,000 27,600,000 32,600,000 45,800,000 54,600,000 57,400,000 76,100,000 83,500,000 81,800,000 68,200,000 75,900,000 65,400,000 55,600,000 44,900,000 47,200,000 36,900,000 37,300,000 46,000,000 35,600,000 30,900,000 34,600,000 30,300,000 37,700,000 39,700,000 35,600,000 39,200,000 43,900,000 37,200,000 30,900,000 17,600,000 21,200,000 18,500,000 
        total current assets
      		808,500,000 987,700,000 969,300,000 1,008,800,000 895,100,000 896,500,000 787,300,000 725,000,000 771,500,000 905,100,000 951,100,000 1,401,100,000 1,340,800,000 1,712,800,000 1,703,700,000 657,400,000 613,600,000 627,000,000 484,600,000 502,700,000 428,500,000 488,500,000 499,000,000 522,500,000 430,200,000 549,100,000 455,600,000 454,100,000 557,300,000 642,000,000 560,800,000 493,500,000 497,000,000 599,800,000 632,500,000 538,100,000 549,500,000 547,100,000 527,200,000 455,900,000 570,200,000 753,100,000 682,000,000 653,300,000 705,800,000 740,000,000 696,700,000 702,500,000 694,600,000 758,000,000 607,000,000 626,500,000 794,200,000 856,500,000 727,800,000 601,400,000 652,700,000 726,500,000 705,200,000 596,400,000 
        other property and investments
      		                                                            
        total other property and investments
      		128,800,000 137,400,000 134,400,000 125,700,000 124,200,000 122,600,000 119,700,000 118,900,000 114,000,000 111,400,000 108,700,000 107,100,000 105,800,000 104,600,000 487,100,000 1,184,000,000 905,100,000 569,700,000 542,000,000 519,200,000 484,100,000 459,000,000 455,700,000 447,400,000 1,234,200,000 1,259,100,000 1,252,700,000 1,250,900,000 1,250,900,000 1,238,300,000 1,230,600,000 1,236,800,000 1,237,100,000 1,234,500,000 1,234,900,000 1,234,400,000 1,232,200,000 1,240,000,000 1,241,200,000 1,256,900,000 1,265,100,000 1,272,700,000 1,382,500,000 1,387,100,000 1,388,300,000 1,378,500,000 1,375,000,000 1,377,300,000 1,359,800,000 1,352,000,000 1,323,100,000          
        property, plant and equipment
      		                                                            
        in service
      		17,409,600,000 16,976,100,000 16,785,200,000 16,362,000,000 16,254,600,000 16,048,600,000 15,910,700,000 15,743,000,000 15,588,200,000 15,394,100,000 15,211,900,000 14,866,800,000 14,695,200,000 14,438,400,000 14,285,600,000 14,111,700,000 13,899,800,000 13,703,900,000 13,582,700,000 13,420,400,000 13,296,700,000 13,115,200,000 13,005,400,000 12,862,400,000 12,771,100,000 12,662,100,000 12,516,700,000 12,326,700,000 11,994,800,000 11,604,700,000 11,544,600,000 11,474,400,000 11,041,200,000 10,890,300,000 10,827,400,000 10,730,800,000 10,690,000,000 10,599,600,000 10,522,700,000 10,415,700,000 10,318,300,000 10,198,700,000 10,126,400,000 10,020,900,000 9,983,000,000 9,722,600,000 9,644,300,000 9,302,900,000 9,183,100,000 8,929,500,000 8,849,700,000 11,656,800,000 11,504,400,000 11,318,500,000 10,956,300,000 10,597,400,000 10,315,900,000 9,569,300,000 9,414,500,000 9,280,400,000 
        construction work in progress
      		744,300,000 708,800,000 690,700,000 887,000,000 814,200,000 783,700,000 689,100,000 599,000,000 522,200,000 488,600,000 416,100,000 484,900,000 436,100,000 345,700,000 270,400,000 229,600,000 252,000,000 249,300,000 181,000,000 185,600,000 145,500,000 128,900,000 124,000,000 149,500,000 141,600,000 125,200,000 126,800,000 156,600,000 376,400,000 632,900,000 566,000,000 525,700,000 867,500,000 893,900,000 797,800,000 673,300,000 495,100,000 365,800,000 319,400,000 300,100,000 278,500,000 230,600,000 168,800,000 147,500,000 115,900,000 297,500,000 222,300,000 470,300,000 468,500,000 501,100,000 421,400,000 543,600,000 387,500,000 269,400,000 363,100,000 501,600,000 499,000,000 874,700,000 774,800,000 550,700,000 
        total property, plant and equipment
      		18,153,900,000 17,684,900,000 17,475,900,000 17,249,000,000 17,068,800,000 16,832,300,000 16,599,800,000 16,342,000,000 16,110,400,000 15,882,700,000 15,628,000,000 15,351,700,000 15,131,300,000 14,784,100,000 14,556,000,000 14,341,300,000 14,151,800,000 13,953,200,000 13,763,700,000 13,606,000,000 13,442,200,000 13,244,100,000 13,129,400,000 13,011,900,000 12,912,700,000 12,787,300,000 12,643,500,000 12,483,300,000 12,371,200,000 12,237,600,000 12,110,600,000 12,000,100,000 11,908,700,000 11,784,200,000 11,625,200,000 11,404,100,000 11,185,100,000 10,965,400,000 10,842,100,000 10,715,800,000 10,596,800,000 10,429,300,000 10,295,200,000 10,168,400,000 10,098,900,000 10,020,100,000 9,866,600,000 9,773,200,000 9,651,600,000 9,430,600,000 9,271,100,000 12,200,400,000 11,891,900,000 11,587,900,000 11,319,400,000 11,099,000,000 10,814,900,000 10,444,000,000 10,189,300,000 9,831,100,000 
        less: accumulated depreciation
      		5,243,100,000 5,166,500,000 5,100,600,000 5,035,800,000 4,982,200,000 5,000,300,000 4,912,500,000 4,873,200,000 4,809,400,000 4,768,700,000 4,688,400,000 4,632,000,000 4,584,500,000 4,516,300,000 4,438,000,000 4,370,000,000 4,318,900,000 4,257,300,000 4,188,500,000 4,131,500,000 4,067,600,000 4,010,100,000 3,957,300,000 3,920,900,000 3,868,100,000 3,826,100,000 3,766,000,000                                  
        net property, plant and equipment
      		12,910,800,000 12,518,400,000 12,375,300,000 12,213,200,000 12,086,600,000 11,832,000,000 11,687,300,000 11,468,800,000 11,301,000,000 11,114,000,000 10,939,600,000 10,719,700,000 10,546,800,000 10,267,800,000 10,118,000,000 9,971,300,000 9,832,900,000 9,695,900,000 9,575,200,000 9,474,500,000 9,374,600,000 9,234,000,000 9,172,100,000 9,091,000,000 9,044,600,000 8,961,200,000 8,877,500,000 8,769,400,000 8,643,800,000 8,557,000,000 8,473,100,000 8,393,100,000 8,339,900,000 8,199,900,000 8,088,300,000 7,900,300,000 7,696,200,000 7,534,300,000 7,469,900,000 7,387,500,000 7,322,400,000 7,166,500,000 7,085,800,000 7,012,200,000 6,979,900,000 6,927,100,000 6,820,300,000 6,762,300,000 6,672,800,000 6,495,600,000 6,382,900,000 8,580,400,000 8,344,800,000 8,097,800,000 7,863,700,000 7,704,600,000 7,474,000,000 7,148,800,000 6,934,200,000 6,599,600,000 
        deferred charges and other assets
      		                                                            
        regulatory assets
      		555,900,000 546,700,000 561,800,000 558,300,000 568,100,000 572,700,000 586,200,000 576,600,000 577,600,000 581,800,000 574,500,000 531,600,000 524,300,000 493,900,000 505,100,000 1,256,700,000 1,230,800,000 1,264,900,000 1,278,300,000 1,269,700,000 415,600,000 301,600,000 299,400,000 300,000,000 306,000,000 304,700,000 290,000,000 276,500,000 285,800,000 256,200,000 270,200,000 275,600,000 283,000,000 373,400,000 406,800,000 403,100,000 404,800,000 404,800,000 401,900,000 402,800,000 402,200,000 389,700,000 404,800,000 406,700,000 411,500,000 372,600,000 376,500,000 374,400,000 379,100,000 496,200,000 501,900,000 502,600,000 510,600,000 480,900,000 494,100,000 500,500,000 507,900,000 415,300,000 414,900,000 412,100,000 
        total deferred charges and other assets
      		624,000,000 613,900,000 610,100,000 605,500,000 610,100,000 624,700,000 617,500,000 605,300,000 604,200,000 612,700,000 605,200,000 562,400,000 551,300,000 518,800,000 529,200,000 1,280,900,000 1,254,800,000 1,284,900,000 1,297,700,000 1,292,300,000 431,600,000 316,100,000 312,300,000 310,000,000 315,300,000 314,300,000 300,400,000 287,200,000 296,600,000 265,700,000 279,100,000 313,000,000 338,700,000 429,500,000 464,800,000 462,100,000 461,700,000 462,600,000 420,900,000 423,000,000 439,700,000 425,500,000 443,300,000 449,600,000 453,800,000 417,100,000 432,300,000 408,600,000 407,500,000 538,600,000 535,500,000 719,000,000 731,000,000 701,200,000 711,100,000 719,300,000 732,600,000 458,100,000 449,200,000 448,700,000 
        total assets
      		14,472,100,000 14,257,400,000 14,089,100,000 13,953,200,000 13,716,000,000 13,475,800,000 13,211,800,000 12,918,000,000 12,790,700,000 12,743,200,000 12,604,600,000 12,790,300,000 12,544,700,000 12,604,000,000 12,838,000,000 13,093,600,000 12,606,400,000 12,177,500,000 11,899,500,000 11,788,700,000 10,718,800,000 10,497,600,000 10,439,100,000 10,370,900,000 11,024,300,000 11,083,700,000 10,886,200,000 10,761,600,000 10,748,600,000 10,703,000,000 10,543,600,000 10,436,400,000 10,412,700,000 10,463,700,000 10,420,500,000 10,134,900,000 9,939,600,000 9,784,000,000 9,659,200,000 9,523,300,000 9,597,400,000 9,617,800,000 9,593,600,000 9,502,200,000 9,527,800,000 9,462,700,000 9,324,300,000 9,250,700,000 9,134,700,000 9,144,200,000 8,848,500,000 9,981,800,000 9,922,200,000 9,706,000,000 9,351,400,000 9,074,500,000 8,906,000,000 8,378,800,000 8,135,500,000 7,690,600,000 
        liabilities and stockholders' equity
      		                                                            
        current liabilities
      		                                                            
        short-term debt
      		492,400,000 466,300,000 534,500,000 766,700,000 469,300,000 215,200,000 361,300,000 755,700,000 499,200,000 411,400,000 418,100,000    425,400,000 731,500,000 486,900,000 383,200,000 384,500,000 1,278,000,000 95,000,000  75,000,000 375,000,000 112,000,000 168,800,000 207,500,000 366,400,000   200,100,000 193,900,000 168,400,000 146,500,000 193,200,000 128,200,000 236,200,000 213,200,000 284,400,000 187,500,000   105,500,000 109,900,000 98,000,000 411,400,000 386,600,000 377,800,000 439,600,000 447,000,000 478,700,000 707,000,000 430,900,000 455,600,000 596,700,000 489,300,000 277,100,000 289,000,000 211,100,000 237,200,000 
        accounts payable
      		282,900,000 275,700,000 287,900,000 224,700,000 305,700,000 269,800,000 256,800,000 211,900,000 276,400,000 281,800,000 337,700,000 327,600,000 448,900,000 299,700,000 297,100,000 300,900,000 274,000,000 243,500,000 189,800,000 244,800,000 251,500,000 123,200,000 144,200,000 157,200,000 194,900,000 159,000,000 151,600,000 194,100,000 239,300,000 171,800,000 161,400,000 181,000,000 230,400,000 145,500,000 188,400,000 244,300,000 205,400,000 129,400,000 159,700,000 172,700,000 262,500,000 125,700,000 145,800,000 151,900,000 179,100,000 143,100,000 174,300,000 209,600,000 251,000,000 171,100,000 219,600,000 409,500,000 396,700,000 280,700,000 274,500,000 304,800,000 388,000,000 297,400,000 372,500,000 294,500,000 
        dividends payable
      		87,700,000 85,600,000 84,800,000 84,800,000 84,700,000 84,600,000 84,000,000 83,900,000 83,800,000 83,800,000 82,900,000 82,900,000 82,900,000 82,900,000 82,100,000 82,100,000 82,100,000 82,100,000 80,600,000 80,600,000 80,500,000 80,500,000 77,600,000 77,600,000 77,600,000 77,600,000 73,000,000 73,000,000 72,900,000 72,900,000 66,400,000 66,400,000 66,400,000 66,400,000 60,400,000 60,400,000 60,400,000 60,400,000 54,900,000 54,900,000 54,900,000 54,900,000 49,900,000 49,900,000 49,900,000 49,800,000 44,800,000 44,800,000 44,700,000 41,400,000 41,400,000 41,400,000 41,200,000 38,800,000 38,700,000 38,700,000 38,500,000 36,800,000 36,700,000 36,700,000 
        customer deposits
      		125,300,000 122,800,000 120,300,000 111,500,000 111,100,000 110,000,000 107,800,000 105,600,000 103,500,000 99,900,000 96,400,000 92,400,000 88,800,000 86,400,000 81,800,000 81,500,000 81,100,000 80,600,000 80,900,000 80,700,000 81,100,000 82,400,000 82,700,000 83,200,000 83,000,000 82,700,000 83,400,000 83,700,000 83,600,000 83,100,000 82,500,000 81,400,000 80,700,000 79,500,000 79,100,000 78,600,000 77,700,000 77,400,000 77,500,000 77,900,000 77,000,000 76,000,000 75,800,000 75,200,000 73,700,000 72,400,000 71,800,000 71,400,000 70,900,000 69,500,000 69,700,000 71,300,000 70,300,000 69,500,000 69,400,000 68,800,000 67,600,000 68,000,000 67,200,000 68,700,000 
        accrued taxes
      		32,800,000 97,700,000 69,900,000 49,500,000 58,800,000 101,400,000 49,200,000 29,000,000 47,600,000 73,800,000 47,600,000 35,800,000 54,000,000 263,800,000 110,400,000 39,900,000 52,900,000 82,800,000 56,500,000 37,700,000 55,700,000 78,400,000 57,500,000 34,900,000 41,900,000 60,700,000 40,800,000 26,200,000 44,000,000 62,600,000 42,900,000 31,400,000 44,500,000 60,200,000 40,100,000 25,200,000 41,300,000 58,700,000 39,400,000 24,700,000 45,900,000 61,400,000 41,600,000 24,000,000 39,700,000 56,100,000 38,100,000 26,000,000 39,900,000 57,200,000 40,300,000 28,800,000 48,100,000 65,900,000 45,700,000 26,200,000 42,300,000 61,600,000 42,300,000 23,800,000 
        accrued interest
      		82,600,000 82,500,000 68,700,000 72,800,000 63,800,000 72,900,000 60,300,000 55,500,000 57,400,000 56,400,000 57,300,000 48,700,000 41,100,000 42,700,000 40,900,000 42,600,000 40,800,000 42,500,000 40,800,000 40,600,000 40,200,000 40,400,000 40,300,000 36,100,000 37,900,000 35,700,000 35,800,000 35,200,000 44,500,000 39,500,000 44,000,000 38,900,000 44,000,000 39,000,000 43,700,000 33,000,000 40,400,000 33,000,000 40,300,000 32,900,000 42,900,000 34,100,000 42,900,000 34,200,000 43,000,000 32,900,000 46,500,000 34,200,000 43,400,000 33,600,000 45,100,000 35,700,000 55,000,000 35,700,000 54,800,000 35,500,000 54,800,000 35,100,000 54,300,000 30,500,000 
        accrued compensation
      		33,400,000 51,500,000 37,300,000 32,500,000 53,000,000 54,200,000 39,700,000 30,700,000 46,800,000 46,900,000 35,500,000 28,500,000 37,000,000 44,000,000 37,900,000 26,000,000 37,700,000 38,600,000 36,000,000 24,300,000 31,100,000 33,900,000 38,700,000 26,900,000 40,600,000 33,900,000 33,100,000 23,600,000 47,800,000 39,600,000 37,700,000 25,700,000 35,900,000 30,300,000 33,000,000 25,500,000 45,100,000 34,100,000 35,700,000 55,600,000 54,400,000 37,100,000 32,900,000 33,600,000 38,200,000 43,600,000 38,900,000 38,200,000 56,900,000 53,300,000 39,500,000 37,100,000 55,200,000 52,200,000 37,200,000 36,600,000 47,800,000 54,000,000 48,900,000 35,300,000 
        fuel clause over recoveries
      		55,300,000 10,000,000 6,300,000 1,500,000 9,300,000 16,400,000 29,800,000 36,500,000 20,500,000          4,700,000 15,500,000 28,600,000 39,600,000 37,200,000 15,600,000 4,800,000 2,200,000 100,000  300,000 39,200,000 38,700,000 49,900,000 1,700,000     1,400,000 41,300,000 63,200,000 61,300,000 34,500,000 1,600,000      400,000 12,000,000 21,800,000 81,600,000 109,200,000 107,100,000 65,400,000 39,200,000 7,700,000 8,500,000 9,300,000 25,400,000 
        total current liabilities
      		1,231,900,000 1,237,100,000 1,250,700,000 1,382,600,000 1,229,800,000 1,041,500,000 1,109,700,000 1,429,700,000 1,179,200,000 1,107,500,000 1,127,200,000 1,665,900,000 1,802,200,000 1,876,000,000 2,125,400,000 1,342,800,000 1,089,600,000 993,900,000 911,300,000 1,836,500,000 697,400,000 517,400,000 594,600,000 855,200,000 657,900,000 696,600,000 702,700,000 884,200,000 869,400,000 840,900,000 1,250,300,000 1,215,200,000 950,500,000 953,500,000 926,200,000 915,000,000 1,027,200,000 795,300,000 773,500,000 706,500,000 752,800,000 586,800,000 662,300,000 641,600,000 573,300,000 869,100,000 1,093,900,000 949,300,000 1,093,800,000 941,500,000 1,016,600,000 1,482,200,000 1,276,400,000 1,195,900,000 1,268,800,000 1,115,300,000 998,500,000 934,200,000 933,900,000 838,500,000 
        long-term debt
      		5,369,600,000 5,368,200,000 5,367,200,000 5,121,800,000 5,020,900,000 5,020,800,000 4,821,800,000 4,261,900,000 4,340,500,000 4,339,700,000 4,339,000,000 3,994,100,000 3,548,700,000 3,548,200,000 3,547,600,000 4,497,000,000 4,496,400,000 4,495,800,000 4,495,200,000 3,495,000,000 3,494,400,000 3,493,900,000 3,493,400,000 3,195,600,000 3,195,200,000 3,194,700,000 3,193,600,000 2,897,300,000 2,896,900,000 2,896,800,000 2,500,400,000 2,500,100,000 2,749,600,000 2,749,500,000 2,863,000,000 2,703,200,000 2,405,800,000 2,505,200,000 2,629,700,000 2,629,300,000 2,645,600,000 2,645,500,000 2,645,400,000 2,645,400,000 2,755,300,000 2,509,700,000 2,409,500,000 2,549,400,000 2,300,100,000 2,400,000,000 2,400,200,000 2,848,700,000 2,848,600,000 2,848,400,000 2,737,500,000 2,737,300,000 2,737,100,000 2,586,900,000 2,586,800,000 2,338,100,000 
        deferred credits and other liabilities
      		                                                            
        accrued benefit obligations
      		153,100,000 160,800,000 165,600,000 163,200,000 170,900,000 166,900,000 163,500,000 161,500,000 172,700,000 176,300,000 174,200,000 172,500,000 176,900,000 145,700,000 146,800,000 148,800,000 159,800,000 175,200,000 179,800,000 182,500,000 231,400,000 194,300,000 214,300,000 217,100,000 225,000,000 205,600,000 224,900,000 227,100,000 225,700,000 172,800,000 188,400,000 190,400,000 192,700,000 185,800,000 275,600,000 276,500,000 274,800,000 280,200,000 300,100,000 298,200,000 299,900,000 311,000,000 310,800,000 313,200,000 315,500,000 247,700,000 244,000,000 242,800,000 241,500,000 367,700,000 366,900,000 399,900,000 399,800,000 336,700,000 334,100,000 365,600,000 360,800,000 241,500,000 249,000,000 285,000,000 
        deferred income taxes
      		1,511,200,000 1,429,800,000 1,402,900,000 1,388,300,000 1,371,100,000 1,361,600,000 1,335,300,000 1,318,400,000 1,300,800,000 1,281,700,000 1,262,400,000 1,248,700,000 1,233,500,000 1,201,300,000 1,328,600,000 1,385,600,000 1,333,300,000 1,240,900,000 1,206,500,000 1,287,900,000 1,268,600,000 1,229,200,000 1,165,700,000 1,129,000,000 1,375,800,000 1,362,100,000 1,325,000,000 1,319,500,000 1,310,900,000 1,291,500,000 1,255,100,000 1,232,300,000 1,227,800,000 2,465,900,000 2,379,400,000 2,332,000,000 2,334,500,000 2,314,500,000 2,232,600,000 2,188,100,000  176,400,000 173,100,000 189,200,000 191,400,000 168,200,000 160,800,000 188,600,000 215,800,000 230,200,000 97,700,000 40,600,000 187,700,000 162,100,000 74,700,000 37,300,000 32,100,000 13,800,000 15,100,000 17,100,000 
        deferred investment tax credits
      		9,600,000 10,000,000 10,200,000 10,400,000 10,600,000 10,700,000 10,900,000 11,100,000 11,300,000 11,500,000 11,700,000 11,800,000 12,000,000 13,600,000 13,800,000 14,200,000 12,800,000 11,000,000 10,900,000 10,900,000 10,900,000 10,200,000 7,100,000 7,100,000 7,100,000 7,100,000 7,200,000 7,200,000                   1,400,000 1,600,000 1,900,000 2,400,000 2,900,000 3,400,000 3,900,000 4,500,000 5,000,000 5,500,000 6,100,000 6,900,000 7,700,000 8,500,000 
        regulatory liabilities
      		941,900,000 971,200,000 985,200,000 1,002,900,000 1,016,400,000 1,014,600,000 1,030,500,000 1,047,400,000 1,061,600,000 1,079,300,000 1,100,000,000 1,123,200,000 1,147,100,000 1,178,700,000 1,205,300,000 1,223,300,000 1,231,100,000 1,247,700,000 1,259,700,000 1,176,900,000 1,188,900,000 1,199,400,000 1,206,200,000 1,216,100,000 1,223,500,000 1,233,300,000 1,243,000,000 1,254,300,000 1,270,700,000 1,291,000,000 1,296,100,000 1,292,700,000 1,283,400,000 331,700,000 321,600,000 306,700,000 299,700,000 292,000,000 283,900,000 278,300,000 272,600,000 277,000,000 279,600,000 271,600,000 263,000,000 266,600,000 239,700,000 237,600,000 234,200,000 242,700,000 244,400,000 245,500,000 245,100,000 243,600,000 242,500,000 237,000,000 230,700,000 223,200,000 215,900,000 205,600,000 
        total deferred credits and other liabilities
      		2,931,400,000 2,855,000,000 2,826,300,000 2,833,100,000 2,824,400,000 2,796,400,000 2,802,600,000 2,781,100,000 2,759,400,000 2,755,300,000 2,759,300,000 2,760,300,000 2,780,400,000 2,739,100,000 2,908,100,000 2,991,100,000 2,964,100,000 2,872,900,000 2,852,200,000 2,851,700,000 2,895,200,000 2,825,600,000 2,786,900,000 2,767,400,000 3,031,700,000 3,006,200,000 2,982,700,000 3,003,900,000 2,977,200,000 2,935,700,000 2,902,800,000 2,879,000,000 2,861,500,000 3,143,900,000 3,139,300,000 3,072,300,000 3,062,800,000 3,038,300,000 2,934,200,000 2,889,200,000 2,873,000,000 3,032,100,000 2,999,900,000 2,973,400,000 2,954,800,000 2,840,900,000 2,721,100,000 2,714,200,000 2,703,700,000 2,808,100,000 2,620,400,000 2,598,600,000 2,724,800,000 2,625,200,000 2,466,900,000 2,411,500,000 2,351,100,000 2,158,800,000 2,066,400,000 2,045,100,000 
        total liabilities
      		9,532,900,000 9,460,300,000 9,444,200,000 9,337,500,000 9,075,100,000 8,858,700,000 8,734,100,000 8,472,700,000 8,279,100,000 8,202,500,000 8,225,500,000 8,420,300,000 8,131,300,000 8,163,300,000 8,581,100,000 8,830,900,000 8,550,100,000 8,362,600,000 8,258,700,000 8,183,200,000 7,087,000,000 6,836,900,000 6,874,900,000 6,818,200,000 6,884,800,000 6,897,500,000 6,879,000,000 6,785,400,000 6,743,500,000 6,673,400,000 6,653,500,000 6,594,300,000 6,561,600,000 6,846,900,000 6,928,500,000 6,690,500,000 6,495,800,000 6,338,800,000 6,337,400,000 6,225,000,000 6,271,400,000 6,264,400,000 6,307,600,000 6,260,400,000 6,283,400,000 6,219,700,000 6,224,500,000 6,212,900,000 6,097,600,000 6,149,600,000 6,037,200,000 6,929,500,000 6,849,800,000 6,669,500,000 6,473,200,000 6,264,100,000 6,086,700,000 5,679,900,000 5,587,100,000 5,221,700,000 
        commitments and contingencies
      		                                                            
        stockholders' equity
      		                                                            
        common stockholders' equity
      		1,379,300,000 1,179,600,000 1,173,200,000 1,166,700,000 1,167,900,000 1,161,700,000 1,156,500,000 1,142,400,000 1,145,100,000 1,141,600,000 1,138,400,000 1,135,200,000 1,134,500,000 1,131,700,000 1,129,500,000 1,127,200,000 1,125,800,000 1,123,000,000 1,120,900,000 1,118,600,000 1,124,600,000 1,121,500,000 1,119,100,000 1,116,800,000 1,131,300,000 1,128,300,000 1,123,400,000 1,120,500,000 1,127,700,000 1,124,000,000 1,120,100,000 1,117,100,000 1,114,800,000 1,110,500,000 1,110,300,000 1,107,900,000 1,105,800,000 1,104,400,000 1,104,500,000 1,102,900,000 1,101,300,000 1,104,200,000 1,097,400,000 1,091,500,000 1,087,600,000 1,080,700,000 1,075,300,000 1,069,600,000 1,073,600,000 1,067,800,000 1,059,700,000 1,039,700,000 1,047,400,000 1,034,600,000 1,028,200,000 1,022,300,000 1,035,300,000 999,600,000   
        retained earnings
      		3,562,500,000 3,619,900,000 3,474,200,000 3,451,600,000 3,475,700,000 3,458,500,000 3,324,400,000 3,306,200,000 3,373,700,000 3,409,200,000 3,251,000,000 3,245,600,000 3,290,900,000 3,323,500,000 3,143,600,000 3,152,600,000 2,955,400,000 2,718,300,000 2,547,900,000 2,515,600,000 2,544,600,000 2,570,200,000 2,473,300,000 2,465,000,000 3,036,100,000 3,078,300,000 2,904,900,000 2,877,800,000 2,906,300,000 2,924,500,000 2,792,300,000 2,748,000,000 2,759,500,000 2,526,600,000 2,409,600,000 2,365,200,000 2,367,300,000 2,369,800,000 2,246,700,000 2,230,100,000 2,259,800,000 2,285,300,000 2,229,100,000 2,191,500,000 2,198,200,000 2,189,600,000 2,052,100,000 1,996,100,000 1,991,700,000 1,978,700,000 1,804,900,000 1,754,100,000 1,772,400,000 1,775,100,000 1,628,400,000 1,573,200,000 1,574,800,000 1,576,800,000 1,434,900,000 1,368,700,000 
        accumulated other comprehensive loss, net of tax
      		-2,600,000 -2,400,000 -2,500,000 -2,600,000 -2,700,000 -3,100,000 -3,200,000 -3,300,000 -7,200,000 -10,100,000 -10,300,000 -10,800,000 -11,900,000 -14,400,000 -16,100,000 -17,000,000 -24,800,000 -26,300,000 -27,900,000 -28,600,000 -32,100,000 -25,700,000 -27,900,000 -28,800,000 -27,900,000 -20,400,000 -21,100,000 -22,100,000 -28,900,000 -18,900,000 -22,300,000 -23,000,000 -23,200,000 -20,300,000 -27,900,000 -28,700,000 -29,300,000 -29,000,000 -29,400,000 -34,700,000 -35,100,000 -36,100,000 -40,500,000 -41,200,000 -41,400,000 -27,300,000 -27,600,000 -27,900,000 -28,200,000 -51,900,000 -53,300,000 -48,300,000 -49,100,000 -41,000,000 -41,500,000 -42,100,000 -40,600,000 -35,500,000 -41,800,000 -46,900,000 
        total stockholders' equity
      		4,939,200,000 4,797,100,000 4,644,900,000 4,615,700,000 4,640,900,000 4,617,100,000 4,477,700,000 4,445,300,000 4,511,600,000 4,540,700,000 4,379,100,000 4,370,000,000 4,413,400,000 4,440,700,000 4,256,900,000 4,262,700,000 4,056,300,000 3,814,900,000 3,640,800,000 3,605,500,000 3,631,800,000 3,660,700,000 3,564,200,000 3,552,700,000 4,139,500,000 4,186,200,000 4,007,200,000 3,976,200,000 4,005,100,000 4,029,600,000 3,890,100,000 3,842,100,000 3,851,100,000 3,616,800,000 3,492,000,000 3,444,400,000 3,443,800,000 3,445,200,000 3,321,800,000 3,298,300,000 3,326,000,000 3,353,400,000 3,286,000,000 3,241,800,000 3,244,400,000 3,243,000,000 3,099,800,000 3,037,800,000 3,037,100,000 2,994,600,000 2,811,300,000 3,052,300,000 3,072,400,000 3,036,500,000 2,878,200,000 2,810,400,000 2,819,300,000 2,698,900,000 2,548,400,000  
        total liabilities and stockholders' equity
      		14,472,100,000 14,257,400,000 14,089,100,000 13,953,200,000 13,716,000,000 13,475,800,000 13,211,800,000 12,918,000,000 12,790,700,000 12,743,200,000 12,604,600,000 12,790,300,000 12,544,700,000 12,604,000,000 12,838,000,000 13,093,600,000 12,606,400,000 12,177,500,000 11,899,500,000 11,788,700,000 10,718,800,000 10,497,600,000 10,439,100,000 10,370,900,000 11,024,300,000 11,083,700,000 10,886,200,000 10,761,600,000 10,748,600,000 10,703,000,000 10,543,600,000 10,436,400,000 10,412,700,000 10,463,700,000 10,420,500,000 10,134,900,000 9,939,600,000 9,784,000,000 9,659,200,000 9,523,300,000 9,597,400,000 9,617,800,000 9,593,600,000 9,502,200,000 9,527,800,000 9,462,700,000 9,324,300,000 9,250,700,000 9,134,700,000 9,144,200,000 8,848,500,000 9,981,800,000 9,922,200,000 9,706,000,000 9,351,400,000 9,074,500,000 8,906,000,000 8,378,800,000   
        fuel clause under recoveries
      		 38,500,000 97,900,000 164,600,000 112,700,000 43,300,000    53,000,000 198,300,000 370,100,000 514,900,000 507,200,000 271,700,000 182,300,000 151,900,000 98,200,000 400,000 91,800,000     39,500,000 48,700,000 30,700,000 24,500,000 2,000,000     35,500,000 107,400,000 73,400,000 51,300,000 500,000    1,600,000 3,700,000 27,000,000 68,300,000 84,300,000 82,100,000 62,000,000 26,200,000  1,700,000 400,000  800,000 700,000  1,800,000 33,200,000 22,400,000 400,000 
        long-term debt due within one year
      		    32,400,000 32,400,000 79,400,000 79,400,000    1,000,000,000 999,900,000 999,900,000 999,800,000              250,000,000 249,900,000 499,900,000 499,700,000 249,800,000 349,700,000 224,900,000 224,800,000 224,700,000 124,900,000   110,000,000 110,000,000 110,000,000 110,000,000   240,000,000 100,000,000 100,000,000            
        december 31
      		    2,024,000,000    2,023,000,000    2,022,000,000    2,021,000,000    2,020,000,000    2,019,000,000    2,018,000,000    2,017,000,000    2,016,000,000    2,015,000,000    2,014,000,000    2,013,000,000    2,012,000,000    2,011,000,000    
        treasury stock
      		            -100,000 -100,000 -100,000 -100,000 -100,000 -100,000 -100,000 -100,000 -5,300,000 -5,300,000 -300,000 -300,000                             -3,500,000 -100,000 -100,000 -300,000 -6,200,000    
        equity securities investment in energy transfer
      		              382,000,000 1,067,400,000 785,100,000                                            
        investment in unconsolidated affiliates
      		                 478,900,000 451,700,000 432,800,000 397,400,000 376,800,000 376,500,000 367,500,000 1,151,500,000 1,175,900,000 1,171,300,000 1,173,900,000 1,177,500,000 1,160,600,000 1,153,600,000 1,160,600,000 1,160,400,000 1,158,100,000 1,159,100,000 1,158,900,000 1,158,600,000 1,168,000,000 1,168,800,000 1,187,400,000 1,194,400,000 1,202,200,000 1,309,200,000 1,315,700,000 1,318,200,000 1,311,100,000 1,309,600,000 1,314,200,000 1,298,800,000 1,295,800,000 1,267,200,000          
        less accumulated depreciation
      		                           3,713,900,000 3,727,400,000 3,680,600,000 3,637,500,000 3,607,000,000 3,568,800,000 3,584,300,000 3,536,900,000 3,503,800,000 3,488,900,000 3,431,100,000 3,372,200,000 3,328,300,000 3,274,400,000 3,262,800,000 3,209,400,000 3,156,200,000 3,119,000,000 3,093,000,000 3,046,300,000 3,010,900,000 2,978,800,000 2,935,000,000 2,888,200,000 3,620,000,000 3,547,100,000 3,490,100,000 3,455,700,000 3,394,400,000 3,340,900,000 3,295,200,000 3,255,100,000 3,231,500,000 
        accounts receivable - unconsolidated affiliates
      		                                1,900,000 1,200,000 2,100,000 5,800,000 2,500,000 2,400,000  2,900,000 1,700,000 5,100,000 2,400,000 6,600,000 5,600,000 6,900,000 7,400,000 10,300,000 12,400,000 9,000,000 9,100,000          
        accounts receivable - affiliates
      		                               6,900,000                             
        accounts payable - unconsolidated affiliates
      		                                      1,400,000                      
        assets held for sale
      		                                                    25,500,000        
        intangible assets
      		                                                   126,000,000 127,400,000 129,700,000 132,200,000 134,600,000 137,000,000    
        goodwill
      		                                                   39,400,000 39,400,000 39,400,000 39,400,000 39,400,000 39,400,000    
        deferred revenues
      		                                                400,000 300,000 200,000 38,500,000 37,700,000 40,400,000 40,500,000 40,700,000 40,800,000 39,100,000 36,200,000 36,400,000 
        total oge energy stockholders' equity
      		                                                3,037,100,000 2,994,600,000 2,811,300,000 2,745,500,000 2,767,200,000 2,768,600,000 2,615,000,000 2,553,100,000 2,563,300,000 2,540,900,000 2,387,800,000  
        noncontrolling interests
      		                                                   306,800,000 305,200,000 267,900,000 263,200,000 257,300,000 256,000,000 158,000,000 160,600,000 158,300,000 
        price risk management
      		                                                   400,000 500,000 1,000,000 900,000 4,100,000 3,500,000 1,800,000 900,000 800,000 
        gas imbalances
      		                                                   12,700,000 9,000,000 7,900,000 10,100,000 5,800,000 1,800,000 2,600,000 6,100,000 4,600,000 
        other property and investments, at cost
      		                                                   55,900,000 52,200,000 50,500,000 48,800,000 49,200,000 46,700,000 45,400,000 46,900,000 45,900,000 
        common stockholders’ equity
      		                                                          994,700,000 988,800,000 
        total liabilities and stockholders’ equity
      		                                                          8,135,500,000 7,690,600,000 
        oge energy corp.
      		                                                            
        condensed consolidated balance sheets
      		                                                            
        liabilities and stockholders’ equity
      		                                                            
        stockholders’ equity
      		                                                            
        total oge energy stockholders’ equity
      		                                                           2,310,600,000 
        total stockholders’ equity
      		                                                           2,468,900,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 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 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 
                                                                    
          cash flows from operating activities
        		                                                            
          net income
        		50,200,000 231,300,000 107,500,000 62,700,000 101,900,000 218,700,000 102,300,000 18,600,000 48,200,000 241,900,000 88,400,000 38,300,000 50,300,000 262,800,000 73,100,000 279,500,000 319,200,000 252,500,000 112,900,000 52,700,000 54,800,000 177,400,000 85,900,000 -491,800,000 35,400,000 250,900,000 100,200,000 47,100,000 54,700,000 205,100,000 110,700,000 55,000,000 294,800,000 183,400,000 104,800,000 36,000,000 57,900,000 183,600,000 71,500,000 25,200,000 29,400,000 111,200,000 87,500,000 43,200,000 58,400,000 187,300,000 100,800,000 49,300,000 57,600,000 215,200,000 93,000,000 28,000,000 43,500,000 192,400,000 101,600,000 47,500,000 43,200,000 181,400,000 109,300,000 29,700,000 
          adjustments to reconcile net income to net cash from operating activities:
        		                                                            
          depreciation and amortization
        		136,400,000 146,700,000 140,600,000 137,400,000 130,800,000 144,000,000 135,500,000 129,200,000 128,800,000 132,500,000 124,100,000 121,200,000 119,500,000 122,400,000 111,600,000 107,400,000 105,800,000 108,600,000 102,900,000 98,700,000 99,100,000 100,500,000 97,300,000 94,400,000 94,200,000 94,100,000 84,300,000 82,400,000 80,800,000 81,100,000 80,900,000 78,800,000 76,300,000 76,900,000 74,700,000 55,600,000 81,800,000 82,200,000 80,100,000 78,500,000 77,900,000 77,900,000 76,200,000 75,900,000 74,200,000 71,700,000 68,300,000 67,200,000 65,600,000 65,400,000 74,700,000 92,900,000 101,800,000 95,900,000 90,500,000 86,600,000 81,300,000 77,100,000 74,700,000 74,000,000 
          deferred income taxes and other tax credits
        		7,600,000 12,800,000 500,000 700,000 -4,600,000 12,300,000 5,300,000 2,600,000 3,900,000 6,500,000 300,000 900,000 21,900,000 -142,400,000 -81,000,000 47,500,000                                             
          allowance for equity funds used during construction
        		-7,500,000 -6,300,000 -6,000,000 -7,000,000 -7,300,000 -6,900,000 -6,600,000 -4,700,000 -5,300,000 -4,500,000 -5,100,000 -4,500,000 -2,300,000 -2,400,000 -900,000 -1,300,000 -1,900,000 -1,900,000 -1,600,000 -1,300,000 -1,100,000 -1,100,000 -1,300,000 -1,300,000 -800,000 -1,000,000 -1,200,000 -1,500,000 -3,800,000 -6,700,000 -6,300,000 -7,000,000 -12,500,000 -11,800,000 -8,500,000 -6,900,000 -5,000,000 -3,900,000 -3,700,000 -1,600,000 -2,900,000 -2,200,000 -1,700,000 -1,500,000 -1,200,000 -1,100,000 -800,000 -1,100,000 -2,200,000 -1,700,000 -1,500,000 -1,200,000 -1,300,000 -1,300,000 -1,700,000 -1,900,000 -4,300,000 -5,900,000 -5,800,000 -4,400,000 
          stock-based compensation expense
        		3,800,000 3,500,000 3,600,000 3,000,000 3,100,000 2,100,000 3,300,000 3,200,000 3,600,000 3,200,000 3,300,000 3,000,000 2,800,000 2,300,000 2,300,000 2,300,000 2,700,000 2,300,000 2,300,000 2,500,000 3,100,000 2,400,000 2,300,000 2,000,000 3,100,000 4,900,000 2,900,000 3,000,000 3,700,000 3,900,000                           4,400,000 3,000,000 2,700,000 -2,300,000 
          regulatory assets
        		-6,100,000 -9,500,000 -20,600,000 -9,500,000 -15,100,000 -7,800,000 -23,100,000 -6,400,000 -5,500,000 -20,700,000 -51,100,000 -14,800,000 100,000 748,600,000 -11,000,000 -35,500,000 6,600,000 -2,000,000 -19,600,000 -859,900,000 -103,500,000 -2,400,000 -6,400,000 300,000 1,000,000 -22,500,000 -18,300,000 -7,300,000 -6,000,000 -3,200,000 -1,800,000 200,000 -7,200,000 26,500,000 -9,200,000 -6,400,000 -10,900,000 -6,500,000 -1,700,000 -2,300,000 -21,800,000 10,200,000 -200,000 2,700,000 3,600,000 1,500,000 -4,000,000 3,500,000 19,400,000 3,700,000 -1,800,000 5,500,000 2,800,000 7,200,000 4,700,000 5,600,000 4,400,000 2,800,000 800,000 6,000,000 
          regulatory liabilities
        		200,000 400,000 200,000 200,000 5,600,000 -2,900,000 -2,200,000 -3,300,000 69,100,000 -26,300,000 -27,800,000 -27,200,000 -46,700,000 -28,500,000 -24,100,000 -19,100,000 -21,200,000 -15,600,000 -18,100,000 -16,300,000 -15,400,000 -21,900,000 -15,000,000 -11,700,000 -13,500,000 -11,000,000 -14,100,000 -7,000,000 -12,800,000 -5,600,000 -700,000 2,600,000 -3,100,000 -400,000 4,400,000 -4,600,000 -2,000,000 -1,400,000 -3,800,000 -4,600,000 -13,600,000 -11,900,000 -1,300,000 -700,000 1,200,000 -200,000 -3,500,000 -1,900,000 -15,600,000 -7,100,000 -5,700,000 -4,100,000 -2,000,000 -5,200,000 -4,200,000 -3,400,000 -2,500,000 -2,700,000 500,000 2,800,000 
          other assets
        		1,000,000 -17,600,000 -500,000 -4,700,000 10,700,000 -22,200,000 -800,000 -4,500,000  -1,200,000 0 -2,200,000 -2,100,000 1,600,000 15,100,000 4,300,000 -3,100,000 -900,000 -300,000 -5,500,000 -5,500,000 -5,000,000 -1,300,000 2,600,000 500,000 -1,100,000 600,000 -3,800,000 4,100,000 -5,200,000 6,700,000 600,000 1,300,000 1,500,000 500,000 -4,000,000 -2,600,000 11,200,000 4,300,000 2,500,000 -2,100,000 8,200,000 5,200,000 -700,000 2,300,000 9,000,000 -20,400,000 -7,200,000 10,500,000 -8,600,000 -500,000 -100,000 -3,800,000 -7,900,000 2,400,000 2,400,000 -1,600,000 -10,800,000 3,400,000 2,000,000 
          other liabilities
        		-18,000,000 14,600,000 -1,500,000 11,200,000 -6,700,000 -5,500,000 22,100,000 20,700,000 3,100,000 -400,000 8,700,000 -6,400,000 12,700,000 -8,200,000 -4,700,000 -6,400,000 33,500,000 1,700,000 2,100,000 -45,400,000 12,900,000 -23,600,000 -6,200,000 -9,400,000 14,100,000 -8,800,000 -2,000,000 15,900,000 2,400,000 -800,000 -1,500,000 900,000 5,300,000 -82,500,000 5,500,000 6,200,000 900,000 -25,500,000 3,600,000 2,100,000 8,500,000 2,500,000 -2,200,000 -200,000 4,800,000 5,300,000 -6,700,000 26,200,000 11,500,000 5,700,000 -30,500,000 6,300,000 8,100,000 4,200,000 -31,800,000 5,200,000 3,900,000 -3,000,000 -39,600,000 1,300,000 
          change in certain current assets and liabilities:
        		                                                            
          accounts receivable and accrued unbilled revenues
        		51,300,000 -100,400,000 -68,100,000 -48,800,000 103,600,000 -89,700,000 -84,200,000 36,700,000 156,100,000 -81,300,000 -75,400,000 43,400,000 77,900,000 -73,400,000 -101,900,000 400,000 97,500,000 -57,500,000 -67,900,000 26,000,000 66,000,000 -27,100,000 -52,000,000 16,200,000 95,200,000 -63,900,000 -31,700,000 19,200,000 76,200,000 -4,900,000 -66,300,000 14,800,000                             
          income taxes receivable
        		1,600,000 100,000   0 6,600,000 12,400,000 -800,000 -11,700,000 300,000 8,000,000 5,900,000 -20,600,000 2,400,000 -1,500,000 1,600,000 -2,100,000 3,600,000 2,300,000 1,700,000 -7,200,000 -400,000                           0 5,100,000   100,000 9,800,000   0    
          fuel, materials and supplies inventories
        		2,400,000 44,200,000 -8,900,000 13,000,000 -25,900,000 22,500,000 19,500,000 9,600,000 -57,900,000 -20,500,000 -6,400,000 -38,000,000 -45,600,000 -31,500,000 -27,700,000 -25,300,000 -12,100,000 19,100,000 -3,400,000 -7,000,000 -6,900,000 -500,000 3,500,000 -5,000,000 -3,800,000 800,000 -1,900,000 9,100,000 12,400,000 14,800,000 12,300,000 -12,200,000 -7,700,000 3,000,000 8,800,000 -7,700,000 1,500,000 19,700,000 1,000,000 10,200,000 -31,000,000 4,200,000 -5,800,000 -23,900,000 -13,100,000 11,500,000 26,000,000 -4,000,000 -100,000 25,200,000 -12,300,000 -7,700,000 0 17,300,000 -6,900,000 3,300,000 -7,300,000 27,600,000 17,800,000 16,100,000 
          fuel recoveries
        		28,200,000 63,100,000 71,500,000 -59,700,000 -76,500,000 -56,700,000 -6,700,000 16,000,000 73,500,000 145,300,000 171,800,000 144,800,000 -7,700,000 -235,500,000 -89,400,000 -30,400,000 -53,700,000 -102,500,000 80,600,000 -104,900,000 -11,000,000 2,400,000 21,600,000 50,300,000 11,800,000 -15,900,000 -6,100,000 -22,800,000 -40,900,000 500,000 -11,200,000 48,200,000                             
          other current assets
        		-6,500,000 -9,000,000 23,600,000 300,000 -26,000,000 4,600,000 -13,800,000 5,100,000 -7,800,000 4,800,000 45,300,000 2,300,000 500,000 11,500,000 -52,200,000 10,000,000 -17,800,000 700,000 -3,100,000 -2,500,000 -10,500,000 4,500,000 -14,400,000 3,600,000 1,700,000 7,900,000 6,500,000 -11,000,000 5,800,000 -2,700,000 13,700,000 8,300,000 400,000 21,100,000 1,400,000 4,300,000 -13,100,000 4,600,000 -7,700,000 -10,000,000 -8,300,000 1,300,000 -11,500,000 1,300,000 3,100,000 -4,800,000 -4,700,000 3,700,000 -4,300,000 7,200,000 -3,300,000 -4,100,000 3,600,000 4,700,000 -6,700,000 -6,300,000 -14,300,000 3,600,000 -2,700,000 6,200,000 
          accounts payable
        		-45,900,000 -38,600,000 73,200,000 -59,400,000 30,600,000 3,100,000 53,600,000 -102,000,000 5,300,000 -29,800,000 -8,000,000 -103,800,000 139,100,000 -3,200,000 -5,000,000 24,500,000 48,900,000 29,700,000 -42,400,000 -28,700,000 128,400,000 -17,400,000 -18,400,000 -32,800,000 34,600,000 14,300,000 -40,800,000 -42,600,000 63,800,000 11,600,000 -22,000,000 -23,700,000 56,200,000 -30,400,000 -23,600,000 24,900,000 45,500,000 -33,800,000 -12,700,000 -44,100,000 88,600,000 -17,000,000 -25,600,000 -15,100,000 36,700,000 -39,700,000 -31,400,000 -29,600,000 72,200,000 -11,400,000 -20,400,000 16,500,000 106,600,000 11,100,000 -33,400,000 -59,200,000 75,400,000 -34,800,000 37,000,000 -43,100,000 
          other current liabilities
        		-23,200,000 62,500,000 32,400,000 -23,500,000 -94,600,000 124,900,000 36,500,000 -37,000,000 -23,400,000 42,200,000 33,000,000 -15,100,000 -224,500,000 172,600,000 106,900,000 -18,300,000 -38,600,000 33,400,000 34,000,000 -24,100,000 -32,200,000 13,400,000 30,800,000 -38,800,000 -20,500,000 18,600,000 19,800,000 -55,900,000 -100,000 23,300,000 59,500,000 -9,500,000 -11,600,000 -13,900,000 1,900,000 -43,100,000 34,500,000 34,200,000 3,600,000 -35,900,000 -19,800,000 34,400,000 29,600,000 -26,400,000 -18,500,000 16,600,000 31,200,000 -41,100,000 -11,200,000 15,300,000 45,200,000 -56,600,000 -18,300,000 19,500,000 57,100,000 -42,500,000 -14,300,000 3,700,000 64,900,000 -38,300,000 
          net cash from operating activities
        		175,500,000 397,800,000 338,600,000 15,900,000   253,100,000 83,000,000 383,400,000 392,000,000 309,100,000 147,800,000 75,300,000 759,700,000 -50,800,000 58,900,000     187,500,000 262,000,000 159,400,000 103,900,000 263,500,000 289,200,000 99,900,000 28,900,000 239,400,000 357,500,000 187,200,000 167,000,000 320,800,000 266,300,000 106,400,000 91,000,000 217,700,000 260,900,000 92,600,000 73,400,000 256,300,000 303,300,000 166,200,000 139,600,000 255,100,000 284,700,000 158,600,000 23,200,000 272,000,000 271,300,000 20,700,000 59,200,000 368,100,000 396,500,000 161,200,000 120,300,000 305,200,000 282,200,000 170,200,000 76,300,000 
          cash flows from investing activities
        		                                                            
          capital expenditures
        		-266,800,000 -229,500,000 -273,700,000 -249,500,000   -323,300,000 -226,900,000 -298,600,000 -299,000,000 -294,600,000 -286,000,000 -360,100,000 -240,000,000 -230,700,000 -220,100,000     -230,800,000 -138,900,000 -153,600,000 -127,200,000 -159,000,000 -162,000,000 -161,600,000 -152,900,000 -159,800,000 -140,000,000 -136,400,000 -137,400,000 -161,300,000 -171,700,000 -271,200,000 -219,900,000 -193,400,000 -135,600,000 -153,400,000 -177,700,000 -172,800,000 -147,300,000 -118,900,000 -108,800,000 -131,900,000 -139,800,000 -125,800,000 -171,800,000 -217,700,000 -207,900,000 -239,900,000 -325,100,000 -357,800,000 -234,300,000 -247,400,000 -311,100,000 -363,100,000 -335,500,000 0 0 
          free cash flows
        		-91,300,000 168,300,000 64,900,000 -233,600,000   -70,200,000 -143,900,000 84,800,000 93,000,000 14,500,000 -138,200,000 -284,800,000 519,700,000 -281,500,000 -161,200,000     -43,300,000 123,100,000 5,800,000 -23,300,000 104,500,000 127,200,000 -61,700,000 -124,000,000 79,600,000 217,500,000 50,800,000 29,600,000 159,500,000 94,600,000 -164,800,000 -128,900,000 24,300,000 125,300,000 -60,800,000 -104,300,000 83,500,000 156,000,000 47,300,000 30,800,000 123,200,000 144,900,000 32,800,000 -148,600,000 54,300,000 63,400,000 -219,200,000 -265,900,000 10,300,000 162,200,000 -86,200,000 -190,800,000 -57,900,000 -53,300,000 170,200,000 76,300,000 
          cost of removal and other
        		-16,500,000 -18,300,000 -21,600,000 -14,200,000 -13,300,000 -17,600,000 -22,800,000 -16,600,000                                                     
          net cash from investing activities
        		-283,300,000 -247,800,000 -295,300,000 -263,700,000 -309,900,000 -261,700,000 -346,100,000 -243,500,000    -287,700,000 -360,000,000 199,200,000 394,100,000 -220,400,000 -202,200,000 -190,100,000 -197,800,000 -159,000,000 -232,800,000 -139,800,000 -157,400,000 -124,900,000 -142,300,000 -164,700,000 -163,800,000 -153,900,000 -162,900,000 -146,200,000 -129,300,000 -137,600,000 -161,600,000 -170,000,000 -270,400,000 -219,900,000 -179,900,000 -134,800,000 -134,600,000 -171,100,000 -164,200,000 -110,200,000 -117,000,000 -108,700,000 -131,800,000 -130,300,000 -125,600,000 -171,400,000 -217,600,000 -207,600,000 -242,300,000 -289,500,000 -356,000,000 -309,700,000 -231,800,000 -295,100,000 -543,500,000 -319,600,000 -350,700,000 -182,000,000 
          cash flows from financing activities
        		                                                            
          proceeds from long-term debt
        		-600,000 0 344,500,000 -100,000 -1,600,000 351,400,000   -500,000 0 344,100,000 444,700,000 -500,000 0   -1,800,000 0   0 -100,000   100,000 500,000   0    -200,000 295,800,000 -600,000 297,100,000         342,400,000 0 -400,000 246,900,000 0 -100,000   0    0 0   
          payment of long-term debt
        		 0 -100,000 -32,400,000 0 0   0 0   0    0    0    -100,000 0 0 -250,000,000 -100,000    -100,000,000 -125,000,000 0 -100,000 -100,000 0 0 -110,100,000 -100,000 0   -100,100,000 -140,000,000   100,000 -100,000           
          increase in short-term debt
        		200,400,000  -232,200,000 297,400,000 254,100,000 -146,100,000 -394,400,000 256,500,000 87,800,000 -6,700,000   0 -425,400,000 -306,100,000 244,600,000 103,700,000 -1,300,000 -893,600,000 1,183,100,000 95,000,000 -75,000,000 -300,000,000 263,000,000 -56,800,000 -38,700,000 -158,900,000 366,400,000   6,200,000 25,500,000 21,900,000 -46,700,000 65,000,000 -108,000,000 23,000,000 -71,200,000 96,900,000 187,500,000   -4,400,000 11,900,000 -313,400,000 24,800,000 8,800,000 -61,800,000 -7,400,000 -31,700,000 -228,300,000 276,100,000 -24,700,000 -141,100,000 107,400,000 212,200,000 -11,900,000 77,900,000 -26,100,000 92,200,000 
          increase in long-term borrowings under revolver
        		   100,000,000                                                         
          dividends paid on common stock
        		-89,100,000 -84,800,000 -84,900,000 -86,600,000 -84,600,000 -84,000,000 -84,000,000 -85,900,000 -83,800,000 -82,900,000 -82,900,000 -83,600,000 -82,900,000 -82,000,000 -82,100,000 -82,300,000 -82,100,000 -80,600,000 -80,500,000 -81,700,000 -80,500,000 -77,600,000 -77,500,000 -79,300,000 -77,500,000 -73,100,000 -73,100,000 -75,500,000 -72,800,000 -66,400,000 -66,400,000 -66,600,000 -66,400,000 -60,400,000 -60,400,000 -60,400,000 -60,400,000 -54,900,000 -54,900,000 -54,900,000 -54,900,000 -49,900,000 -49,900,000 -49,900,000 -49,800,000 -44,800,000 -44,800,000 -44,700,000 -41,500,000 -41,400,000 -41,400,000 -41,200,000 -38,600,000 -38,800,000 -38,600,000 -38,500,000 -36,700,000 -36,800,000 -36,700,000 -36,600,000 
          proceeds (costs) from issuance of common stock
        		2,700,000 2,800,000 3,000,000 3,100,000 3,100,000 3,100,000 10,800,000 100,000                                                     
          cash paid for employee equity-based compensation
        		-5,600,000 0 0 -7,300,000 0 0 0 -6,100,000                                                     
          net cash from financing activities
        		107,800,000 -150,200,000 -69,700,000 274,100,000   88,800,000 164,600,000  -89,600,000 -320,800,000 358,800,000    161,500,000 19,900,000 -82,100,000 25,400,000 1,098,100,000 14,400,000 -157,700,000 -80,400,000 166,900,000 -134,400,000 -111,300,000 63,900,000 30,700,000     -144,800,000 -96,300,000 164,000,000 128,600,000 -37,500,000 -126,100,000 42,000,000 22,500,000       -33,200,000 143,800,000 -47,600,000 -63,700,000 214,500,000 235,600,000 -20,500,000 -78,300,000 70,700,000 171,800,000 237,300,000 37,900,000 181,600,000 107,400,000 
          net change in cash and cash equivalents
        		 -200,000 -26,400,000 26,300,000 -9,300,000 9,800,000 -4,200,000 4,100,000 -2,600,000 2,500,000 -306,700,000 218,900,000 -368,100,000 451,300,000   -1,500,000 1,500,000 0 -1,100,000 -30,900,000 -35,500,000 -78,400,000 145,900,000 -13,200,000 13,200,000 0 -94,300,000 3,600,000 90,700,000 -2,300,000 -12,100,000 14,400,000 0 0 -300,000 300,000 0 0 -75,200,000 31,900,000 43,300,000 -1,500,000 -4,000,000                 
          cash and cash equivalents at beginning of period
        		200,000 0 0 600,000  0 0 200,000  0 0 88,100,000      0 0 1,100,000      0 0 94,300,000 0 0 0 14,400,000 0 0 0 300,000 0 0 0 75,200,000 0 0 0 5,500,000 0 0 0 6,800,000 0 0 0 1,800,000 0 0 0 4,600,000 0 0 0 2,300,000 
          cash and cash equivalents at end of period
        		200,000 -200,000 -26,400,000 26,900,000  9,800,000 -4,200,000 4,300,000  2,500,000 -306,700,000 307,000,000  451,300,000        -35,500,000 -78,400,000 145,900,000     3,600,000   2,300,000         31,900,000   1,500,000   -200,000 2,400,000    7,100,000 -8,400,000 8,500,000 100,000 1,600,000 -1,000,000 500,000 1,100,000 4,000,000 
          other
        		 0        -900,000 -400,000 -1,700,000 100,000 -600,000 -2,600,000 -300,000             0 0                               
          decrease in short-term debt
        		                                                            
          adjustments to reconcile net income to net cash provided from operating activities:
        		                                                            
          gain on investment in equity securities
        		                                                            
          net cash provided from operating activities
        		    129,600,000                                                        
          proceeds from sales of equity securities
        		            0 439,800,000                                               
          net cash provided from (used in) financing activities
        		    171,000,000                                                        
          cash and cash equivalents at beginning of year
        		                                                            
          cash and cash equivalents at end of year
        		                                                            
          supplemental cash flow information
        		                                                            
          cash paid during the period for:
        		                                                            
          interest
        		                                                            
          income taxes
        		                                                            
          non-cash investing and financing activities
        		                                                            
          power plant long-term service agreement
        		                                                            
          tinker air force base distribution assets purchase
        		                                                            
          loss on investment in equity securities
        		              39,600,000 -282,300,000                                             
          gain on enable/energy transfer transaction
        		                                                            
          equity in earnings of unconsolidated affiliates
        		                        -9,100,000 -38,300,000 -35,800,000 -30,700,000 -49,500,000 -40,100,000 -29,300,000 -33,900,000 -32,600,000 -33,600,000 -29,400,000 -35,600,000 -22,300,000 -34,500,000 -16,700,000 -28,300,000 -27,500,000 71,900,000 -28,200,000 -31,700,000 -40,700,000 -44,700,000 -39,300,000 -47,900,000 -37,400,000 -46,000,000           
          distributions from unconsolidated affiliates
        		                18,400,000 18,300,000 18,400,000 18,300,000 18,400,000 18,300,000 21,500,000 33,500,000 18,200,000 36,700,000 35,300,000 35,300,000 37,900,000 40,100,000 29,300,000 33,900,000 32,600,000 33,600,000 29,700,000 35,300,000 22,400,000 34,500,000 16,700,000 28,700,000 27,000,000 -1,800,000 34,600,000 34,300,000 33,600,000 33,600,000 44,000,000 32,500,000 34,300,000            
          cash received in enable/energy transfer transaction
        		                                                            
          cash paid for employee equity-based compensation and expense of common stock
        		        0 0 0 -2,300,000 0 -100,000 0 -800,000 100,000 -100,000 -100,000 -3,300,000 0 100,000 -100,000 -7,100,000 -100,000                                    
          net cash (used in) provided from financing activities
        		            -83,400,000 -507,600,000               -72,900,000 -120,600,000 -60,200,000 -41,500,000           -50,700,000 -34,900,000 -117,800,000                
          investment in energy transfer's equity securities
        		                                                            
          net cash (used in) provided from investing activities
        		         -299,900,000                                                   
          equity in losses of unconsolidated affiliates
        		                -41,900,000 -41,200,000 -33,500,000 -53,200,000 -35,800,000 -15,800,000 -26,900,000 746,500,000                                     
          purchase of treasury stock
        		                    0 -5,000,000 0 -9,700,000                                     
          adjustments to reconcile net income to net cash (used in) provided from operating activities:
        		                                                            
          unrealized loss on investment in equity securities
        		                                                            
          net cash (used in) provided from operating activities
        		                180,800,000 273,700,000 172,400,000 -940,200,000                                         
          return of capital - unconsolidated affiliates
        		                       3,200,000      -4,800,000 6,000,000 1,400,000                             
          deferred income taxes and investment tax credits
        		                 25,400,000 6,800,000 8,700,000 33,900,000 58,300,000 28,000,000 -254,700,000 2,400,000 27,100,000 -1,400,000 -500,000 14,800,000 44,300,000 12,100,000 7,300,000 -202,100,000 84,100,000 47,600,000 20,400,000 19,600,000 82,000,000 41,800,000 10,400,000 40,300,000 14,200,000 35,100,000 13,000,000 35,200,000 81,800,000 38,300,000 22,000,000 19,400,000 55,800,000 35,300,000 15,400,000 12,800,000 67,800,000 44,700,000 18,400,000 19,900,000 85,800,000 47,700,000 12,600,000 
          investment in unconsolidated affiliates
        		                 -3,000,000 -2,700,000 -600,000 -2,000,000 -900,000 -600,000 -900,000 -1,800,000 -2,700,000 -2,200,000 -1,000,000 -600,000 -1,400,000 1,100,000 -1,600,000 -3,300,000 0               0 0           
          proceeds from sale of assets
        		                                300,000 0   600,000 100,000   300,000 200,000 1,900,000 100,000 100,000 0 200,000 400,000 100,000 300,000 300,000 35,600,000 600,000 300,000 400,000 200,000 200,000 300,000   
          expense of common stock
        		                          0 -10,200,000    -400,000                             
          issuance (expense) of common stock
        		                                                            
          increase in long-term revolver
        		                                                            
          stock-based compensation
        		                               2,700,000 4,400,000 200,000 2,400,000 2,100,000 1,400,000 0 1,500,000 1,700,000 2,100,000 1,400,000 1,900,000 500,000 2,700,000 1,600,000 1,600,000 -8,600,000 1,400,000 1,700,000 1,700,000 -8,300,000 4,500,000 2,300,000 2,400,000 -11,800,000     
          return of capital - equity method investments
        		                                2,700,000 1,700,000   12,900,000 700,000 18,600,000 6,600,000 8,300,000    0                
          adjustments to reconcile net income to net cash from operating activities
        		                                                            
          change in certain current assets and liabilities
        		                                                            
          accounts receivable
        		                                 -75,200,000 -48,400,000 36,400,000 51,300,000 -61,200,000 -28,000,000 38,000,000 49,500,000 -36,700,000 -16,700,000 19,600,000 49,400,000 -50,800,000 4,500,000 -12,500,000 77,800,000 -70,400,000 -49,800,000 8,400,000 95,300,000 -88,100,000 -34,900,000 54,800,000 70,500,000 -71,500,000 -55,100,000 8,100,000 
          accrued unbilled revenues
        		                                 16,900,000 -30,500,000 3,500,000 11,300,000 19,900,000 -39,500,000 2,100,000 24,400,000 8,400,000 -39,800,000 9,000,000 16,500,000 10,300,000 -30,600,000 7,000,000 12,000,000 12,500,000 -33,600,000 7,800,000 5,100,000 22,100,000 -31,300,000 6,000,000 7,300,000 30,000,000 -46,100,000 6,300,000 
          fuel clause under recoveries
        		                                 71,900,000 -34,000,000 -22,100,000 -50,800,000    1,600,000 2,100,000 23,300,000 41,300,000 16,000,000 -2,200,000 -20,100,000 -35,800,000   -1,300,000 -400,000 800,000 -100,000 -700,000 1,800,000 31,400,000 -10,800,000 -22,000,000 600,000 
          fuel clause over recoveries
        		                                    -1,400,000 -39,900,000 -22,000,000 2,000,000 26,800,000 32,900,000   0 0 0 -400,000 -11,600,000 -9,800,000 -59,800,000 -27,600,000 2,100,000 41,700,000 26,200,000 31,500,000 -800,000 -800,000 -16,100,000 -4,500,000 
          accounts receivable - unconsolidated affiliates
        		                                  3,700,000 -3,300,000 -100,000 -3,800,000 4,300,000 -1,200,000 3,400,000 -2,700,000 4,200,000 -1,000,000 1,300,000 500,000 2,900,000 2,100,000             
          issuance of common stock
        		                                        0 400,000 3,700,000 3,100,000 3,100,000 3,400,000 3,300,000 3,400,000 3,400,000 4,000,000 3,600,000 3,200,000 3,400,000 3,900,000 3,300,000 3,700,000 3,800,000 3,500,000 3,400,000 4,100,000 
          excess tax benefit on stock-based compensation
        		                                                            
          gain on disposition of assets
        		                                                            
          changes in advances with unconsolidated affiliates
        		                                                -2,200,000 5,600,000           
          contributions from noncontrolling interest partners
        		                                                0 0   45,200,000 0   142,900,000 0 0 73,500,000 
          distributions to noncontrolling interest partners
        		                                                0 0 0 -2,500,000 -2,300,000 -2,300,000 -2,400,000 -5,600,000 -4,600,000 -6,700,000 -5,300,000 -800,000 
          loss on disposition of assets
        		                                                       500,000     
          gain on insurance proceeds
        		                                                    0 0 0 -7,500,000     
          acquisition of gathering assets
        		                                                    1,900,000        
          proceeds from insurance
        		                                                    0 0 1,500,000 6,100,000     
          reimbursement of capital expenditures
        		                                                    -700,000 4,800,000 13,700,000 9,700,000 12,400,000 15,600,000 10,300,000 11,300,000 
          repayment of line of credit
        		                                                    0    0 0 0 -25,000,000 
          net increase in cash and cash equivalents
        		                                            5,500,000 -2,200,000 -200,000 -4,400,000 6,800,000   5,300,000 -8,400,000 8,500,000 100,000 -3,000,000 -1,000,000 500,000 1,100,000 1,700,000 
          accounts payable - unconsolidated affiliates
        		                                                -1,200,000 -5,600,000           
          gain on disposition and abandonment of assets
        		                                              0 -200,000             
          impairment of assets
        		                                                    100,000 0 100,000 200,000 1,300,000    
          loss on disposition and abandonment of assets
        		                                                100,000 0 0 -8,700,000 2,400,000 1,100,000    500,000   
          proceeds from line of credit
        		                                                            
          net decrease in cash and cash equivalents
        		                                                            
          price risk management assets
        		                                                   100,000 600,000 -100,000 3,300,000 -500,000 -1,800,000 -1,000,000 400,000 700,000 
          price risk management liabilities
        		                                                   100,000 1,400,000 -600,000 -500,000 -4,900,000 7,000,000 5,200,000 3,600,000 3,200,000 
          gas imbalance assets
        		                                                   -3,700,000 -1,100,000 2,200,000 -4,300,000 -4,000,000 800,000 3,500,000 -1,500,000 -2,100,000 
          gas imbalance liabilities
        		                                                   700,000 3,000,000 500,000 -6,800,000 -1,500,000 4,200,000 -2,100,000 -400,000 1,400,000 
          retirement of long-term debt
        		                                                            
          other investing activities
        		                                                           1,700,000 
          adjustments to reconcile net income to net cash from
        		                                                            
          operating activities
        		                                                            
          capital expenditures (less allowance for equity funds used during
        		                                                            
          construction)
        		                                                           -195,000,000