7Baggers
Quarterly
Annual
    Unit: USD2025-06-30 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 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-06-30 2010-03-31 2009-12-31 2009-06-30 2009-03-31 2008-12-31 2008-06-30 2008-03-31 2007-12-31 2007-06-30 2007-03-31 2006-12-31 
      
    		                                                                     
      operating activities
    		                                                                     
      net income available for common stock
    		149,818,000 216,358,000 44,986,000 -167,621,000 -54,158,000 166,272,000 133,020,000 73,677,000 92,619,000 140,881,000 169,689,000 158,142,000 108,159,000 167,328,000 132,392,000 86,962,000 86,475,000 112,436,000 77,774,000 -145,545,000 41,250,000 -106,068,000 86,591,000 47,281,000 63,753,000 90,596,000 102,660,000 37,994,000 63,026,000 91,847,000 198,654,000 45,576,000 59,715,000 89,283,000 88,908,000 37,552,000 8,286,000 -147,687,000 -189,109,000 -187,703,000 -293,133,000 16,669,000 84,740,000 57,430,000 177,463,000 82,252,000 47,842,000 58,495,000 85,720,000 67,944,000 171,275,000 128,091,000 60,699,000 37,357,000 46,891,000 115,611,000 58,543,000 187,512,000 144,927,000 64,499,000 73,710,000 30,806,000 -42,678,000 225,463,000 165,608,000 70,604,000 179,765,000 132,967,000 54,520,000 
      adjustments to reconcile net income to net cash from operating activities:
    		                                                                     
      impairment of assets
    		0 0 141,802,000                                                                   
      depreciation, depletion and amortization
    		116,408,000 111,277,000 109,370,000 108,847,000 113,454,000 118,935,000 115,790,000 109,600,000 102,409,000 100,964,000 96,600,000 94,109,000 95,858,000 91,245,000 88,578,000 83,671,000 84,170,000 84,342,000 83,120,000 80,096,000 73,232,000 77,912,000 74,918,000 74,670,000 71,072,000 65,663,000 64,255,000 63,159,000 60,817,000 61,155,000 55,830,000 55,383,000 55,618,000 56,998,000 56,196,000 56,117,000 58,802,000 63,947,000 70,551,000 70,860,000 79,865,000 82,686,000 102,747,000 103,905,000 183,089,000 93,114,000 86,257,000 88,142,000 80,030,000 72,331,000 199,925,000 125,698,000 62,547,000 55,910,000 57,293,000 60,011,000 53,313,000 142,433,000 91,846,000 44,955,000 127,715,000 84,056,000 42,342,000 129,337,000 86,533,000 44,121,000 125,986,000 84,886,000 42,825,000 
      deferred income taxes
    		34,967,000 31,172,000 -5,385,000 -49,822,000 -17,975,000 26,825,000 38,362,000 50,307,000 20,351,000 27,288,000 53,457,000 -16,735,000 26,938,000 50,090,000 44,122,000 16,716,000 27,869,000 34,817,000 26,591,000 -62,019,000 11,449,000 53,517,000 51,366,000 11,142,000 20,655,000 26,293,000 64,175,000 25,384,000 18,922,000 32,217,000 -94,676,000 12,902,000 41,292,000 18,929,000 44,852,000 22,454,000 14,664,000 -143,899,000 -140,013,000 -159,471,000 -208,467,000 -22,856,000 33,207,000 23,020,000 71,939,000 30,093,000 26,880,000 38,450,000 61,557,000 41,000,000 104,948,000 81,696,000 39,398,000 23,925,000 33,816,000 69,910,000 36,600,000 63,813,000 41,796,000 21,092,000 -85,494,000 -80,857,000 -69,626,000 27,603,000 12,817,000 5,296,000 27,107,000 21,803,000 11,198,000 
      premiums paid on early redemption of debt
    		0                                                                     
      stock-based compensation
    		5,234,000 5,782,000 4,705,000 6,096,000 5,507,000 5,817,000 4,660,000 4,823,000 4,521,000 5,711,000 5,575,000 4,328,000 4,547,000 5,144,000 5,487,000 4,769,000 3,639,000 4,724,000 3,933,000 5,215,000 2,136,000 4,314,000 3,266,000 5,042,000 5,413,000 5,420,000 5,311,000 3,992,000 3,908,000 3,957,000 3,905,000 3,405,000 3,225,000 3,150,000 2,482,000 2,617,000 620,000 1,558,000 960,000 -5,175,000 2,398,000 2,907,000 3,078,000 -675,000 8,045,000 2,960,000                        
      other
    		4,979,000 7,171,000 7,146,000 5,869,000 6,668,000 3,833,000 8,041,000 3,007,000 5,882,000 6,680,000 4,078,000 4,456,000 13,033,000 9,819,000 4,675,000 3,101,000 1,053,000 3,855,000 2,887,000 882,000 -4,155,000 7,889,000 1,911,000 644,000 -33,000 5,815,000 2,182,000 3,822,000 4,259,000 4,374,000 3,678,000 5,392,000 3,371,000 4,106,000 3,607,000 2,935,000 3,579,000 2,688,000 3,418,000 2,494,000 2,620,000 2,351,000 2,358,000 3,094,000 -118,000 -2,095,000 -4,779,000 5,135,000 6,686,000 7,923,000 6,618,000 4,269,000 2,375,000 8,239,000 1,571,000 -1,639,000 2,443,000 7,884,000 6,270,000 7,958,000 9,365,000 6,611,000 6,628,000 -1,120,000 -194,000 4,916,000 4,722,000 3,818,000 5,728,000 
      change in:
    		                                                                     
      receivables and unbilled revenue
    		102,299,000 -82,388,000 -115,165,000 29,116,000 55,376,000 8,336,000 -58,459,000 21,255,000 120,564,000 101,282,000 -29,522,000 26,063,000 -28,248,000 -67,896,000 -98,688,000 -20,680,000 60,426,000 -37,553,000 -63,606,000 -6,623,000 62,293,000 407,000 -58,655,000 37,963,000 98,793,000 -28,836,000 -101,541,000 4,139,000 88,933,000 -40,597,000 -83,357,000 12,505,000 76,270,000 -24,760,000 -67,395,000 1,348,000 20,455,000 2,939,000 -31,150,000 29,463,000 110,514,000 -27,392,000 -60,947,000 49,301,000 -198,277,000 -92,261,000                        
      gas stored underground and materials and supplies
    		-9,058,000 17,681,000 10,180,000  -6,694,000 18,760,000 6,915,000              -8,489,000 13,101,000 6,985,000 -21,264,000 -11,542,000 20,740,000 8,353,000 -22,853,000 -9,172,000 17,667,000 10,337,000 -17,116,000 -8,777,000 13,879,000 10,597,000 -19,215,000 -6,954,000 19,171,000 3,466,000 -16,821,000 -8,826,000 19,699,000 9,386,000 -22,218,000 52,661,000 17,977,000 -27,567,000 -7,840,000 28,450,000 3,941,000 30,853,000 37,156,000 -2,226,000 -32,321,000 -7,757,000 35,972,000 -5,828,000 20,384,000 37,932,000 2,839,000 71,491,000 79,128,000 20,971,000 14,819,000 44,734,000 -186,000 34,725,000 47,243,000 5,324,000 
      unrecovered purchased gas costs
    		659,000       24,098,000 2,753,000 51,888,000 20,603,000 -66,930,000 -28,661,000 28,851,000 526,000   -112,000 -367,000 0 0 1,619,000 627,000 -2,246,000 5,760,000 2,940,000 -4,496,000 -4,204,000 426,000 7,361,000 -3,164,000 -866,000 924,000 -984,000 -1,257,000 -1,507,000 312,000       0 10,583,000 3,407,000     -2,100,000  -3,002,000        35,808,000 34,782,000 10,992,000 9,089,000 13,347,000 2,583,000 12,970,000 -992,000 -11,021,000 
      other current assets
    		14,301,000 4,923,000 8,814,000 -9,287,000 2,230,000 14,309,000 892,000 -28,847,000 3,634,000 -14,116,000 -1,748,000 1,990,000 6,906,000 -3,951,000 -4,654,000 -7,690,000 4,165,000 -8,196,000 -251,000 55,000 52,446,000 -3,148,000 14,000 -41,002,000 1,534,000 11,633,000 -1,195,000 -15,334,000 7,634,000 -12,410,000 3,591,000 -653,000 733,000 -1,807,000 9,576,000 -12,155,000 11,157,000 9,431,000 -5,254,000 -11,217,000 10,183,000 9,819,000 -5,635,000 -9,006,000 -443,000 12,764,000 -14,337,000 9,839,000 -2,624,000 7,013,000                    
      accounts payable
    		-15,578,000 7,619,000 9,703,000 19,321,000 1,936,000 -12,286,000 -3,355,000 15,245,000 -23,171,000 -35,260,000 6,091,000 -7,352,000 17,253,000 12,894,000 -10,888,000 23,878,000 -1,139,000 9,154,000 -541,000 8,509,000 -7,701,000 -13,745,000 8,280,000 -8,638,000 -26,358,000 8,724,000 1,502,000 15,635,000 -8,511,000 -2,335,000 13,173,000 12,146,000 -8,951,000 -4,808,000 18,805,000 13,023,000 -21,901,000 -11,002,000 -20,784,000 23,534,000 -51,679,000 43,454,000 19,378,000 -11,237,000 69,379,000 39,382,000 -2,938,000 -9,215,000 14,293,000 6,163,000 -38,590,000 -28,656,000 -21,500,000 31,526,000 -27,728,000 3,988,000 29,246,000 127,000 12,179,000 11,408,000 -82,146,000 -45,186,000 3,705,000 53,081,000 39,838,000 42,398,000 -12,560,000 34,417,000 11,736,000 
      amounts payable to customers
    		-10,118,000 -8,194,000 -133,000 -19,849,000 -9,777,000 12,314,000 1,013,000 36,628,000 19,561,000 2,676,000 -265,000 127,000 -3,130,000 3,386,000 15,000 -7,172,000 -12,575,000 13,945,000 -4,965,000 -7,984,000 1,559,000 13,769,000 -573,000 -10,529,000 -917,000 15,463,000 -3,394,000 -13,439,000 4,750,000 11,832,000 251,000 -13,070,000 -6,396,000 16,235,000 -16,306,000 -15,904,000 -6,776,000 -2,859,000 -11,702,000 11,936,000 46,000 8,802,000 2,249,000 940,000 11,837,000 -3,944,000 442,000 -5,853,000 2,961,000 -4,686,000 2,242,000 1,808,000 -3,522,000 -10,142,000 186,000 1,561,000 -14,195,000 -54,764,000 -41,442,000 -11,310,000 43,019,000 18,897,000 1,962,000 2,455,000 -5,424,000 -1,228,000 -4,738,000 -13,339,000 3,166,000 
      customer advances
    		0 -15,295,000 -4,078,000 19,373,000 0 -23,086,000 2,083,000 21,003,000 0 -31,314,000 5,206,000 26,108,000 0 -14,620,000 -2,603,000 17,223,000 0 -16,032,000 713,000 14,758,000 -54,000 -13,112,000 683,000 12,878,000 -267,000 -6,918,000 -6,258,000 13,412,000 43,000 -18,244,000 2,697,000 15,477,000 -76,000 -13,479,000 -983,000 14,724,000 5,000 -23,392,000 7,189,000 16,192,000 -226,000 -20,166,000 1,431,000 18,924,000 -21,878,000 -3,281,000 21,713,000 101,000 -21,923,000 -1,987,000 -19,328,000 -19,439,000 6,171,000 18,622,000 -1,679,000 -24,933,000 -5,000 -23,526,000 -21,840,000 6,098,000 -29,788,000 -31,189,000 -2,924,000 -22,863,000 -22,863,000 635,000    
      customer security deposits
    		-1,619,000 -5,733,000 -174,000 -409,000 6,074,000 -243,000 2,079,000 -5,260,000 -358,000 5,553,000 4,546,000 -917,000 4,434,000 493,000 981,000 20,000 -231,000 1,880,000 424,000 1,973,000 227,000 -511,000 -700,000 -591,000 -1,718,000 -5,323,000 -1,861,000 7,235,000 -505,000 -3,530,000 2,131,000 2,850,000 10,000 820,000 673,000 -75,000 -7,000 -656,000 267,000 -1,839,000 -134,000 2,072,000 630,000 -405,000 -602,000 -493,000 -647,000 -308,000 -1,788,000 984,000 -474,000 -300,000 364,000 -351,000 -392,000 -444,000 188,000 1,188,000 1,996,000 2,135,000          
      other accruals and current liabilities
    		22,755,000 262,000 21,266,000 -21,209,000 -3,081,000 -1,685,000 28,612,000 -113,027,000 16,622,000 24,218,000 4,523,000 -27,062,000 50,158,000 6,120,000 5,044,000 11,160,000 14,096,000 -18,557,000 27,615,000 -1,773,000 -2,302,000 -6,362,000 15,438,000 -25,048,000 -11,988,000 9,616,000 38,412,000 -22,673,000 -11,108,000 26,114,000 11,532,000 1,581,000 -19,267,000 38,771,000 5,919,000 78,000 -19,045,000 36,773,000 -14,353,000 -20,967,000 -39,697,000 59,907,000 -6,416,000 -10,718,000 102,222,000 12,347,000 -2,868,000 -35,739,000 44,940,000 -5,667,000 17,083,000 65,039,000 -4,008,000 -35,085,000 -56,730,000 92,086,000 1,387,000 30,961,000 90,498,000 -13,536,000 166,217,000 216,249,000 30,407,000 94,031,000 192,787,000 25,400,000 77,842,000 163,928,000 -756,000 
      other assets
    		-15,066,000 -16,390,000 -3,892,000 -12,837,000 -13,181,000 -15,859,000 -6,306,000 12,803,000 -12,466,000 -6,663,000 -20,238,000 -14,740,000 -11,525,000 -25,821,000 -6,838,000 -4,589,000 -5,200,000 973,000 10,066,000 -5,988,000 -7,856,000 17,900,000 -28,259,000 39,709,000 4,092,000 3,714,000 -42,400,000 1,214,000 -1,229,000 -4,266,000 -5,275,000 663,000 -3,516,000 8,357,000 -8,389,000 -1,834,000 21,000 2,869,000 885,000 1,572,000 -702,000 -316,000 2,142,000 -6,936,000 23,445,000 -6,268,000 -747,000 1,190,000 -5,603,000 -597,000 -12,796,000 -48,692,000 -28,139,000 -3,249,000 4,545,000 26,173,000 -10,463,000 29,197,000 11,285,000 16,967,000 -8,517,000 2,399,000 12,560,000 19,178,000 18,127,000 10,163,000 918,000 -3,765,000 1,883,000 
      other liabilities
    		-11,575,000 -19,286,000 -9,057,000 -10,832,000 -5,321,000 -6,925,000 -2,403,000 -23,186,000 468,000 -11,539,000 3,122,000 -2,050,000 -6,690,000 -5,342,000 -3,777,000 -33,460,000 -316,000 -2,386,000 2,391,000 164,000 607,000 -2,000,000 5,857,000 3,917,000 11,471,000 10,923,000 -21,333,000 -263,000 7,208,000 16,008,000 -21,775,000 -3,455,000 5,436,000 4,324,000 -4,122,000 -5,331,000 -4,079,000 -6,977,000 2,904,000 -29,088,000 9,075,000 24,054,000 19,132,000 -8,864,000 15,946,000 -7,205,000 -7,192,000 15,974,000 -16,912,000 6,495,000 25,338,000 44,323,000 31,724,000 -8,028,000 7,914,000 -24,355,000 670,000 -11,358,000 -535,000 -22,667,000 -14,453,000 -4,301,000 -6,217,000 17,373,000 4,504,000 1,889,000 -821,000 -2,434,000 -6,810,000 
      net cash from operating activities
    		388,406,000 253,782,000 220,088,000 197,946,000 281,754,000 315,317,000 270,944,000 181,963,000 343,903,000 383,870,000 327,339,000 158,505,000 228,397,000 254,136,000 171,483,000 119,743,000 254,677,000 212,390,000 204,743,000 116,939,000 232,878,000 223,243,000 167,749,000 123,928,000 229,720,000 236,463,000 104,372,000 96,062,000 230,775,000 191,958,000 94,808,000 133,121,000 199,240,000 207,243,000 144,647,000 129,024,000 147,192,000 198,690,000 114,073,000 140,944,000 205,134,000 318,423,000 189,079,000 183,821,000 503,236,000 176,694,000 151,339,000 220,378,000 220,895,000 145,960,000 540,990,000 338,897,000 79,228,000 141,004,000 193,060,000 255,751,000 87,471,000 419,893,000 279,331,000 68,333,000 511,821,000 335,756,000 100,144,000 415,067,000 306,868,000 75,345,000 404,552,000 274,673,000 43,031,000 
      investing activities
    		                                                                     
      capital expenditures
    		-193,056,000 -193,833,000 -240,427,000 -247,036,000 -202,242,000 -235,020,000 -246,938,000 -282,130,000 -231,376,000 -262,889,000 -233,473,000 -219,339,000 -177,072,000 -201,924,000 -213,491,000 -238,959,000 -173,908,000 -155,566,000 -183,301,000 -165,149,000 -155,518,000 -196,991,000 -198,495,000 -201,496,000 -200,863,000 -209,012,000 -177,567,000 -180,010,000 -142,274,000 -119,107,000 -142,613,000 -135,561,000 -106,543,000 -102,178,000 -106,053,000 -99,795,000 -122,800,000 -172,544,000 -186,437,000 -299,214,000 -225,624,000 -248,414,000 -244,927,000 -304,990,000 -367,393,000 -194,920,000 -190,062,000 -173,662,000 -176,756,000 -162,981,000 -776,896,000 -499,607,000 -232,670,000 -253,873,000 -191,401,000 -200,286,000 -192,052,000 -327,513,000 -230,530,000 -62,135,000 -237,126,000 -178,772,000 -84,268,000 -264,728,000 -144,707,000 -69,744,000 -206,509,000 -132,313,000 -65,302,000 
      free cash flows
    		195,350,000 59,949,000 -20,339,000 -49,090,000 79,512,000 80,297,000 24,006,000 -100,167,000 112,527,000 120,981,000 93,866,000 -60,834,000 51,325,000 52,212,000 -42,008,000 -119,216,000 80,769,000 56,824,000 21,442,000 -48,210,000 77,360,000 26,252,000 -30,746,000 -77,568,000 28,857,000 27,451,000 -73,195,000 -83,948,000 88,501,000 72,851,000 -47,805,000 -2,440,000 92,697,000 105,065,000 38,594,000 29,229,000 24,392,000 26,146,000 -72,364,000 -158,270,000 -20,490,000 70,009,000 -55,848,000 -121,169,000 135,843,000 -18,226,000 -38,723,000 46,716,000 44,139,000 -17,021,000 -235,906,000 -160,710,000 -153,442,000 -112,869,000 1,659,000 55,465,000 -104,581,000 92,380,000 48,801,000 6,198,000 274,695,000 156,984,000 15,876,000 150,339,000 162,161,000 5,601,000 198,043,000 142,360,000 -22,271,000 
      net cash from investing activities
    		-192,585,000 -190,830,000 -234,549,000 -248,334,000 -202,424,000 -235,289,000 -247,858,000 -283,248,000 -344,450,000 -275,813,000 -208,836,000 -224,184,000 63,681,000 -188,491,000 -169,710,000 -236,247,000 -174,780,000 -155,320,000 -66,870,000 -649,688,000 -182,609,000 -198,036,000 -193,283,000 -208,662,000 -201,318,000 -209,079,000 -180,116,000 -178,640,000 -111,192,000 -99,054,000 -140,001,000 -124,159,000 -113,504,000 -80,311,000 -104,591,000 -75,787,000 -105,417,000 -80,673,000 -191,619,000 -304,760,000 -225,427,000 -248,447,000 -246,156,000 -303,704,000 -362,466,000 -191,305,000 -188,699,000 -174,102,000 -176,668,000 -166,514,000 -778,163,000 -500,396,000 -233,636,000 -259,807,000 -121,777,000 -143,970,000 -192,100,000 -327,786,000 -230,645,000 -62,452,000 -237,899,000 -179,307,000 -84,900,000 -204,070,000 -82,440,000 -10,608,000 -205,744,000 -133,622,000 -65,127,000 
      financing activities
    		                                                                     
      changes in notes payable to banks and commercial paper
    		-146,900,000 8,400,000 109,300,000          182,000,000 52,000,000 7,500,000  0 -25,000,000 -5,000,000  -230,000,000 90,200,000 84,600,000                31,400,000  -157,500,000 -15,400,000 87,300,000     0 -238,000,000 67,000,000 30,200,000 -20,000,000 -20,000,000    20,500,000             
      net proceeds from issuance of long-term debt
    		-288,000   -37,000    -227,000        0 0   -101,000                    -1,027,000       0 0   496,085,000 496,085,000 496,085,000        247,780,000   296,655,000      
      shares repurchased under repurchase plan
    		-3,959,000 -16,947,000 -33,524,000 -36,239,000 -23,617,000                                                           -129,592,000 -108,941,000  -43,344,000 -43,344,000 -42,921,000 
      reduction of long-term debt
    		-50,000,000       0 0 -399,000,000 -150,000,000     0 0           -259,465,000 0 0 -307,047,000                0 0   -150,000,000 -150,000,000 -150,000,000 0 0 0 -200,000,000    -100,000,000 -100,000,000  -200,024,000 -24,000 -24,000 -119,550,000 -23,207,000 -23,005,000 
      dividends paid on common stock
    		-46,555,000 -46,671,000 -46,872,000 -47,188,000 -45,562,000 -45,597,000 -45,451,000 -45,443,000 -43,602,000 -43,599,000 -43,452,000 -43,446,000 -41,610,000 -41,604,000 -41,487,000 -41,483,000 -40,571,000 -40,560,000 -40,475,000 -40,471,000 -37,654,000 -37,650,000 -37,547,000 -37,543,000 -36,678,000 -36,665,000 -36,532,000 -36,526,000 -35,641,000 -35,591,000 -35,500,000 -35,469,000 -34,577,000 -34,544,000 -34,473,000 -34,405,000 -33,532,000 -33,472,000 -33,415,000 -33,389,000 -32,488,000 -32,442,000 -32,400,000 -32,373,000 -62,776,000 -31,373,000 -31,346,000 -30,485,000 0 -60,879,000 -88,404,000 -58,877,000 -29,398,000 -29,358,000 -28,478,000 -28,407,000 -28,316,000 -81,318,000 -54,096,000 -26,967,000 -77,398,000 -51,556,000 -25,714,000 -77,204,000 -51,896,000 -25,873,000 -74,748,000 -49,808,000 -25,026,000 
      net repurchases of common stock under stock and benefit plans
    		-108,000 -55,000 -3,971,000 -40,000 -2,000                                                                 
      net cash from financing activities
    		-247,810,000 -20,340,000 24,933,000 7,196,000 -48,685,000 -70,944,000 -36,848,000 103,317,000 -17,571,000 -282,599,000 -10,146,000 -383,649,000 140,029,000 10,229,000 -42,846,000 116,920,000 -40,642,000 -86,016,000 -49,001,000 -10,673,000 391,311,000 52,544,000 42,906,000 17,644,000 -36,678,000 -37,296,000 -44,765,000 -1,123,000 -34,270,000 -31,199,000 -344,048,000 261,243,000 -31,584,000 -32,252,000 -33,535,000 -28,832,000 -29,908,000 -60,646,000 279,000     54,116,000 -54,764,000 -26,367,000 -32,364,000 -24,107,000 7,169,000 7,077,000 297,560,000 273,314,000 298,242,000 14,521,000 -31,340,000 -48,636,000 -210,920,000 -41,313,000 -29,935,000 -9,533,000 91,069,000 -138,640,000 53,202,000 -76,605,000 -132,822,000 224,000 -207,134,000 -88,066,000 1,108,000 
      net increase in cash and cash equivalents
    		  10,472,000                                                                   
      cash and cash equivalents at october 1
    		  38,222,000                                                                   
      cash and cash equivalents at june 30
    		                                                                     
      supplemental disclosure of cash flow information
    		                                                                     
      non-cash investing activities:
    		                                                                     
      non-cash capital expenditures
    		29,814,000 -12,803,000 71,616,000 39,520,000 17,547,000 -35,001,000 97,922,000 37,385,000 7,328,000 -45,819,000 110,314,000 45,847,000 10,925,000 -17,520,000 81,010,000 21,215,000 13,412,000 15,931,000 52,142,000 29,194,000 -1,356,000 -34,348,000 93,838,000 1,696,000 4,496,000 -11,246,000 86,175,000 17,403,000 19,471,000 -4,177,000 56,116,000 24,708,000 10,576,000 -12,033,000 48,965,000 16,054,000 -21,678,000 -27,925,000 93,983,000 -3,628,000 28,103,000 -7,180,000 101,664,000 881,000 109,355,000 52,738,000    86,144,000                    
      net increase in cash, cash equivalents, and restricted cash
    		   -43,192,000   -13,762,000 2,032,000 -18,118,000 -174,542,000 108,357,000 -449,328,000 432,107,000 75,874,000 -41,073,000 416,000 39,255,000 -28,946,000 88,872,000  441,580,000 77,751,000 17,372,000                                               
      cash, cash equivalents, and restricted cash at october 1
    		    0 0 55,447,000  0 0 137,718,000  0 0 120,138,000  0 0 20,541,000  0 0 27,260,000  0 0 233,047,000                                           
      cash, cash equivalents, and restricted cash at march 31
    		                                                                     
      cash and cash equivalents at december 31
    		  48,694,000                                                                   
      gain on sale of assets
    		           0                                                          
      reduction of other post-retirement regulatory liability
    		           0 0                                                         
      gas stored underground and materials, supplies and emission allowances
    		       -20,163,000 -9,486,000 15,621,000 5,622,000 -21,032,000 -7,899,000 14,929,000 17,111,000 -21,038,000 -8,234,000 13,385,000 13,873,000                                                   
      net proceeds from sale of exploration and production properties
    		                                                                     
      sale of fixed income mutual fund shares in grantor trust
    		       0 0 0 10,000,000 0 0 0 30,000,000                                                       
      acquisition of upstream assets
    		       0                                                              
      proceeds from issuance of short-term note payable to bank
    		       0 0 0 250,000,000                                                           
      repayment of short-term note payable to bank
    		       0                                                              
      net change in other short-term notes payable to banks and commercial paper
    		   90,700,000 -278,900,000 -21,100,000 12,500,000 149,000,000 -21,500,000 160,000,000 -60,000,000                                                           
      cash, cash equivalents and restricted cash at beginning of year
    		                                                                     
      cash, cash equivalents and restricted cash at end of year
    		                                                                     
      cash paid for:
    		                                                                     
      interest
    		                                                                     
      income taxes
    		                                                                     
      non-cash contingent consideration for asset sale
    		           0                                                          
      impairment of exploration and production properties
    		                                                                     
      cash, cash equivalents, and restricted cash at june 30
    		                                                                     
      deposit paid for upstream assets
    		                                                                     
      net decrease in cash, cash equivalents, and restricted cash
    		                        -8,276,000 -9,912,000 -120,509,000                                           
      net repurchases of common stock
    		      -3,897,000 -13,000 -2,000 0 -6,694,000  -361,000 -167,000 -8,859,000   -8,000 -3,526,000   -6,000 -4,147,000    -8,233,000                                           
      cash, cash equivalents, and restricted cash at december 31
    		      41,685,000    246,075,000    79,065,000    109,413,000    44,632,000    112,538,000                                           
      impairment of oil and gas producing properties
    		               0 0 0 76,152,000 253,441,000 18,236,000               32,755,000 82,658,000 397,443,000 435,451,000 417,197,000 588,712,000                    182,811,000 182,811,000 182,811,000       
      premium paid on early redemption of debt
    		               0 0                                                     
      net proceeds from sale of oil and gas producing properties
    		           0 240,914,000               0 38,196,000   0 0 20,795,000 5,759,000 22,081,000 10,297,000 94,364,000 10,574,000               -5,934,000       3,701,000 60,000  5,675,000 2,313,000 1,500,000 5,137,000 2,330,000 2,141,000 
      net proceeds from sale of timber properties
    		               0 0 0 104,582,000                                                   
      acquisition of upstream assets and midstream gathering assets
    		                   -479,208,000                                                  
      change in notes payable to banks and commercial paper
    		                                                              66,000,000      71,600,000 
      net proceeds from issuance (repurchase) of common stock
    		                       -13,000 0      -1,501,000                    8,168,000 5,030,000 1,555,000 3,879,000 -1,638,000 271,000 -3,104,000             
      cash paid (refunded) for:
    		                                                                     
      gain on sale of timber properties
    		               0 0 0 -51,066,000                                                   
      net proceeds from issuance (repurchases) of common stock
    		                                                                     
      receivable from sale of oil and gas producing properties
    		                              17,310,000    20,795,000 -2,538,000 11,784,000 -84,067,000 94,364,000                               
      excess tax benefits associated with stock-based compensation awards
    		                                   -82,000 -1,560,000 0 -226,000 0 -40,000 -1,357,000 -7,667,000 0 -3,149,000       -1,076,000      -13,207,000 -13,437,000 -13,437,000 -5,927,000 -5,927,000 -5,927,000 -16,275,000 -16,275,000 -16,275,000 -13,689,000 -13,689,000 -13,717,000 
      hedging collateral deposits
    		                           -1,158,000 1,374,000 808,000 -2,724,000 401,000 -371,000 -1,771,000 1,484,000 1,524,000 6,955,000 -412,000 1,573,000 -23,000 4,625,000 -2,258,000 -10,734,000 -2,734,000 1,094,000 1,094,000 -400,000 56,000 -750,000 364,000 16,309,000 829,000 -5,417,000 18,283,000 23,842,000 -30,380,000 -20,312,000 -7,374,000 -12,809,000 -244,000 -6,358,000 -22,194,000 -3,742,000 -26,712,000 1,712,000 2,070,000 16,276,000 17,642,000 9,916,000 
      net proceeds from issuance of common stock
    		                           -152,000 1,371,000   1,561,000 2,993,000 2,292,000 938,000 5,491,000 2,064,000 4,226,000 2,068,000 1,797,000 5,169,000 2,026,000 1,548,000 889,000 4,863,000 1,857,000  2,064,000 -246,000 956,000        26,798,000 10,724,000 3,997,000 14,760,000 6,989,000 6,989,000 17,285,000 11,764,000 9,846,000 16,819,000 14,604,000 6,743,000 
      net increase in cash and temporary cash investments
    		                           -83,701,000 85,313,000 61,705,000 -389,241,000 270,205,000 54,152,000 94,680,000 6,521,000 24,405,000 11,867,000 57,371,000 -77,267,000 -196,435,000 240,590,000 25,517,000 7,038,000  86,006,000   22,169,000 51,396,000 -13,477,000 60,387,000 111,815,000 143,834,000 -104,282,000 39,943,000   50,794,000 18,751,000 -3,652,000 364,991,000 17,809,000 68,446,000 134,392,000 91,606,000 64,961,000 -7,081,000 52,198,000 -22,013,000 
      cash and temporary cash investments at beginning of year
    		                                                                     
      cash and temporary cash investments at end of year
    		                                                                     
      exploration and production
    		                                                                     
      pipeline and storage
    		                                                                     
      gathering
    		                                                                     
      utility
    		                                                                     
      energy marketing
    		                                                                     
      all other and corporate
    		                                                                     
      cash and temporary cash investments at october 1
    		                            0 0 555,530,000  0 0 129,972,000  0 0 113,596,000  0 0 36,886,000  64,858,000 64,858,000  0 0 74,494,000 80,428,000 80,428,000 80,428,000  0 2,000,000 395,171,000 408,053,000 408,053,000 408,053,000 68,239,000 68,239,000 68,239,000 124,806,000 124,806,000 124,806,000 69,611,000 69,611,000 69,611,000 
      cash and temporary cash investments at june 30
    		                                                  140,815,000       458,847,000   433,230,000   259,198,000   62,530,000   
      three months ended june 30, 2018
    		                                                                     
      balance at april 1, 2018
    		                                                                     
      other comprehensive gains and losses before reclassifications
    		                            -17,973,000 -5,869,000 -3,194,000  -15,104,000 56,194,000 -30,449,000   -25,118,000 44,696,000  -40,686,000 -105,617,000 140,880,000  -38,878,000                         
      amounts reclassified from other comprehensive income
    		                            -85,000    -4,701,000 11,705,000 -17,763,000   3,530,000 -39,165,000  2,138,000 -17,037,000 -14,176,000                           
      balance at june 30, 2018
    		                                                                     
      nine months ended june 30, 2018
    		                                                                     
      balance at october 1, 2017
    		                            0 0 20,801,000                                       
      three months ended june 30, 2017
    		                                                                     
      balance at april 1, 2017
    		                                                                     
      balance at june 30, 2017
    		                                                                     
      nine months ended june 30, 2017
    		                                                                     
      balance at october 1, 2016
    		                            0 0 64,782,000  0 0 64,782,000                                   
      cash and temporary cash investments at march 31
    		                                            150,864,000       192,243,000       426,804,000   86,048,000   216,412,000   121,809,000  
      three months ended march 31, 2018
    		                                                                     
      balance at january 1, 2018
    		                                                                     
      balance at march 31, 2018
    		                                                                     
      six months ended march 31, 2018
    		                                                                     
      three months ended march 31, 2017
    		                                                                     
      balance at january 1, 2017
    		                                                                     
      balance at march 31, 2017
    		                                                                     
      six months ended march 31, 2017
    		                                                                     
      cash and temporary cash investments at december 31
    		                              166,289,000    136,493,000    36,329,000    43,924,000   23,880,000    61,017,000   224,262,000    79,622,000   404,401,000   136,685,000   189,767,000   47,598,000 
      three months ended december 31, 2017
    		                                                                     
      amounts reclassified from other comprehensive loss
    		                              -7,351,000              15,470,000                         
      balance at december 31, 2017
    		                              10,256,000                                       
      three months ended december 31, 2016
    		                                                                     
      balance at december 31, 2016
    		                              16,570,000    16,570,000                                   
      three months ended june 30, 2016
    		                                                                     
      balance at april 1, 2016
    		                                                                     
      balance at june 30, 2016
    		                                                                     
      nine months ended june 30, 2016
    		                                                                     
      balance at october 1, 2015
    		                                0 0 157,197,000   0 157,197,000                               
      three months ended march 31, 2016
    		                                                                     
      balance at january 1, 2016
    		                                                                     
      balance at march 31, 2016
    		                                                                     
      six months ended march 31, 2016
    		                                                                     
      three months ended december 31, 2015
    		                                                                     
      balance at december 31, 2015
    		                                  162,728,000    162,728,000                               
      balance at beginning of year
    		                                                                     
      liabilities incurred
    		                                                                     
      revisions of estimates
    		                                                                     
      liabilities settled
    		                                                                     
      accretion expense
    		                                                                     
      three months ended march 31, 2015
    		                                                                     
      balance at january 1, 2015
    		                                                                     
      balance at march 31, 2015
    		                                                                     
      six months ended march 31, 2015
    		                                                                     
      balance at october 1, 2014
    		                                     0 43,659,000  0 0 43,659,000                           
      three months ended december 31, 2014
    		                                                                     
      balance at december 31, 2014
    		                                      170,363,000    170,363,000                           
      net cash from (used) in financing activities
    		                                        260,883,000 -44,459,000 64,115,000                           
      three months ended june 30, 2015
    		                                                                     
      balance at april 1, 2015
    		                                                                     
      balance at june 30, 2015
    		                                                                     
      nine months ended june 30, 2015
    		                                                                     
      three months ended june 30, 2014
    		                                                                     
      balance at april 1, 2014
    		                                                                     
      balance at june 30, 2014
    		                                                                     
      nine months ended june 30, 2014
    		                                                                     
      balance at october 1, 2013
    		                                        0 0 30,722,000   30,722,000                        
      three months ended march 31, 2014
    		                                                                     
      balance at january 1, 2014
    		                                            26,345,000                         
      balance at march 31, 2014
    		                                            2,937,000                         
      six months ended march 31, 2014
    		                                                                     
      three months ended december 31, 2013
    		                                                                     
      balance at december 31, 2013
    		                                          26,345,000   26,345,000                        
      elimination of other post-retirement regulatory liability
    		                                                                     
      net decrease in cash and temporary cash investments
    		                                             -40,978,000           -315,549,000             
      adjustments to reconcile net income to net cash
    		                                                                     
      provided by operating activities:
    		                                                                     
      excess tax benefits associated with stock-based
    		                                                                     
      compensation awards
    		                                             -3,149,000                        
      other comprehensive gain
    		                                                                     
      before reclassifications
    		                                             1,507,000                        
      amounts reclassified from
    		                                                                     
      other comprehensive loss
    		                                             -5,884,000       -5,433,000    -19,665,000    -26,937,000 -5,930,000   -25,581,000     
      gain on sale of unconsolidated subsidiaries
    		                                                     0 0               
      excess tax costs (benefits) associated with stock-based compensation awards
    		                                                  -1,511,000   0                
      receivables and unbilled utility revenue
    		                                              26,003,000 66,265,000 -54,142,000 -55,261,000 23,008,000 -50,906,000 -51,054,000 29,806,000 97,474,000 -69,409,000 -53,984,000 6,676,000 -101,881,000 -67,882,000 -5,520,000 -149,895,000 -98,914,000 -129,102,000 -245,912,000 -127,894,000 -73,150,000 -225,511,000 -91,341,000 
      net proceeds from sale of unconsolidated subsidiaries
    		                                                     0 0               
      excess tax (costs) benefits associated with stock-based compensation awards
    		                                                  1,511,000   0                
      gain on sale of discontinued operations
    		                                                                     
      net proceeds from sale of timber mill and related assets
    		                                                                     
      net proceeds from sale of landfill gas pipeline assets
    		                                                                     
      other comprehensive income, before tax:
    		                                                                     
      decrease in the funded status of the pension and other post-retirement benefit plans
    		                                                                     
      reclassification adjustment for amortization of prior year funded status of the pension and other post-retirement benefit plans
    		                                                                     
      foreign currency translation adjustment
    		                                                        17,000 77,000 47,000 17,000 -42,000 34,000 8,000 2,000 -56,000 -18,000 10,029,000 1,223,000 -4,868,000 
      reclassification adjustment for realized foreign currency translation loss in net income
    		                                                        34,000             
      unrealized gain on securities available for sale arising during the period
    		                                                  -1,870,000 3,116,000 712,000    2,540,000 -3,361,000 1,158,000  3,775,000   -1,603,000 -2,014,000 -1,201,000 1,570,000 483,000 790,000 
      unrealized gain on derivative financial instruments arising during the period
    		                                                  30,432,000 14,498,000 2,155,000 3,860,000    16,528,000 27,633,000 -4,853,000  32,923,000 118,880,000 -139,684,000  -20,859,000 13,343,000 -20,456,000 9,501,000 
      reclassification adjustment for realized gains on derivative financial instruments in net income
    		                                                   -16,185,000 -11,864,000 -2,405,000   -9,053,000 -11,830,000 -5,590,000 -12,052,000          
      other comprehensive loss, before tax
    		                                                    -8,997,000    -33,598,000    -45,566,000 -9,603,000   -43,042,000     
      income tax benefit related to the decrease in the funded status of the pension and other post-retirement benefit plans
    		                                                                     
      reclassification adjustment for income tax benefit related to the amortization of the prior year funded status of the pension and other post-retirement benefit plans
    		                                                                     
      income tax benefit related to unrealized gain on securities available for sale arising during the period
    		                                                  -701,000      960,000 -1,271,000 438,000  1,429,000   -608,000 -761,000 -59,000    
      income tax benefit related to unrealized gain on derivative financial instruments arising during the period
    		                                                   840,000 817,000     6,794,000  -2,062,000  13,399,000 48,128,000 -57,136,000  -8,648,000 5,433,000 -8,494,000  
      reclassification adjustment for income tax expense on realized gains on derivative financial instruments in net income
    		                                                     -959,000    -4,858,000            
      income taxes — net
    		                                                        -13,933,000 665,000 9,448,000 -7,295,000 -18,629,000 -3,673,000    -6,574,000 8,272,000 -8,770,000  
      comprehensive income
    		                                                  47,133,000 68,636,000 55,266,000 191,374,000   38,878,000 43,334,000 94,228,000 54,193,000 15,967,000 67,554,000 4,460,000 -4,150,000 69,423,000 60,521,000 69,049,000 67,189,000 57,095,000 
      prepayments and other current assets
    		                                                  18,190,000 -943,000 -5,182,000 6,451,000 12,513,000 48,679,000 8,768,000 39,043,000 31,318,000 17,859,000 37,904,000 16,954,000 14,958,000 17,370,000 15,878,000 10,422,000 30,685,000 28,659,000 20,398,000 
      reclassification adjustment for realized (gains) losses on derivative financial instruments in net income
    		                                                  -21,599,000          -24,853,000 -39,615,000 -28,792,000  6,741,000   -958,000  
      other comprehensive income, before tax
    		                                                  6,963,000 1,429,000      1,414,000 23,248,000 -17,601,000   80,064,000 -108,203,000  -16,657,000 30,523,000 -20,028,000 8,600,000 
      income tax expense related to unrealized gain on derivative financial instruments arising during the period
    		                                                  12,688,000   2,026,000     11,310,000          3,730,000 
      reclassification adjustment for income tax benefit (expense) on realized losses (gains) from derivative financial instruments in net income
    		                                                  -8,973,000                   
      income taxes—net
    		                                                  3,014,000                   
      other comprehensive income
    		                                                  3,949,000 1,244,000      749,000 13,800,000 -10,306,000   47,138,000 -64,005,000  -10,083,000 22,251,000 -11,258,000 2,575,000 
      income tax expense related to unrealized gain on securities available for sale arising during the period
    		                                                   1,161,000 263,000              562,000 209,000 275,000 
      reclassification adjustment for income tax expense on realized gains from derivative financial instruments in net income
    		                                                   -1,816,000 -4,644,000    -3,725,000  -2,300,000 -4,962,000          
      income taxes – net
    		                                                   185,000 -3,564,000          32,926,000 -44,198,000 -17,461,000    6,025,000 
      (income) income from unconsolidated subsidiaries, net of cash distributions
    		                                                     61,000 77,000 3,799,000 1,100,000      1,032,000     -960,000 -18,000 
      impairment of investment in partnership
    		                                                            1,804,000 1,804,000 1,804,000       
      investment in subsidiary, net of cash acquired
    		                                                        -1,750,000             
      unrealized loss on securities available for sale arising during the period
    		                                                           -713,000  -2,945,000 -10,032,000       
      income tax benefit related to unrealized loss on securities available for sale arising during the period
    		                                                           -271,000  -1,113,000 -3,791,000       
      reclassification adjustment for income tax benefit (expense) on realized losses (gains) on derivative financial instruments in net income
    		                                                                     
      reclassification adjustment for realized foreign currency transaction loss in net income
    		                                                                     
      item 1.
    		                                                                     
      |
    		                                                                     
      cash held in escrow
    		                                                        2,000,000    -2,000,000   58,397,000 58,397,000 58,397,000    
      unrealized loss on derivative financial instruments arising during the period
    		                                                        -27,136,000    -24,446,000    -47,713,000     
      income tax benefit related to unrealized loss on derivative financial instruments arising during the period
    		                                                        -11,168,000    -9,950,000    -19,516,000     
      income from unconsolidated subsidiaries, net of cash distributions
    		                                                         904,000 1,228,000 1,599,000 180,000 808,000  1,340,000 1,651,000 431,000 -1,486,000   
      investment in partnership
    		                                                           -70,000 -800,000      -3,300,000 -3,300,000 -1,650,000 
      investment in partnerships
    		                                                                     
      net proceeds from sale of foreign subsidiaries
    		                                                                     
      effect of exchange rates on cash
    		                                                                  1,245,000 -787,000 -1,025,000 
      reclassification adjustment for realized foreign currency translation gain in net income
    		                                                                     
      reclassification adjustment for income tax benefit on realized (gains) losses on derivative financial instruments in net income
    		                                                                     
      other comprehensive loss, before tax:
    		                                                                     
      reclassification adjustment for income tax benefit on realized (gains) losses from derivative financial instruments in net income
    		                                                            -10,108,000 -15,959,000 -11,411,000     -364,000  
      minimum pension liability adjustment
    		                                                                   -320,000  
      reclassification adjustment for realized losses on derivative financial instruments in net income
    		                                                               33,082,000  5,421,000 5,581,000  3,177,000 
      income tax expense related to minimum pension liability adjustment
    		                                                                     
      reclassification adjustment for income tax benefit on realized losses on derivative financial instruments in net income
    		                                                               13,546,000   2,277,000   
      income tax benefit related to minimum pension liability adjustment
    		                                                                   -121,000  
      reclassification adjustment for income tax benefit on realized losses from derivative financial instruments in net income
    		                                                                2,816,000 2,133,000   2,020,000 
      minority interest in foreign subsidiaries
    		                                                                     
      dividends paid to minority interest
    		                                                                     
      reclassification adjustment for realized gains on securities available for sale in net income
    		                                                                     
      reclassification adjustment for realized loss on derivative financial instruments in net income
    		                                                                     
      income tax expense related to foreign currency translation adjustment
    		                                                                     
      reclassification adjustment for income tax expense on foreign currency translation adjustment in net income
    		                                                                     
      reclassification adjustment for income tax expense on realized gains from securities available for sale in net income
    		                                                                     
      reclassification adjustment for income tax benefit on realized loss on derivative financial instruments in net income
    		                                                                     
      loss on sale of timber properties
    		                                                                     
      gain on sale of oil and gas producing properties
    		                                                                     
      net proceeds from sale of foreign subsidiary
    		                                                                     
      proceeds from issuance of common stock
    		                                                                     
      supplemental disclosure of cash flow information cash paid for:
    		                                                                     
    The information provided in this report is taken from www.sec.gov and many other data providers. While we have conducted our best efforts to ensure that the parsed data is accurate, we cannot guarantee its accuracy. Please use caution and understand that any consequences of its use are your own responsibility.