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Guarantor and Non-Guarantor Financial Information - Operations (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS |  |  |  |
Operating revenues | $ 366,486 | $ 661,445 | $ 1,292,524 | $ 2,607,902
Operating costs and other | 379,742 | 526,396 | 1,225,489 | 1,911,156
Operating income (loss) from continuing operations | (13,256) | 135,049 | 67,035 | 696,746
Other income (expense), net | 1,312 | 1,307 | 3,236 | 4,535
Interest expense | (6,407) | (6,136) | (16,652) | (9,326)
Income (loss) from continuing operations before income taxes | (18,351) | 130,220 | 53,619 | 691,955
Income tax provision | 2,842 | 39,321 | 33,740 | 243,891
Income (loss) from continuing operations | (21,193) | 90,899 | 19,879 | 448,064
Income (loss) from discontinued operations before income taxes | 2,193 | (27) | 2,241 | (118)
Income tax provision | 2,200 |  | 6,113 | (77)
Loss from discontinued operations | (7) | (27) | (3,872) | (41)
NET INCOME (LOSS) | (21,200) | 90,872 | 16,007 | 448,023
Eliminations |  |  |  |
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS |  |  |  |
Operating revenues | (20) | (18) | (53) | (58)
Operating costs and other | (290) | (1,026) | (1,093) | (3,092)
Operating income (loss) from continuing operations | 270 | 1,008 | 1,040 | 3,034
Other income (expense), net | (270) | (1,007) | (1,040) | (3,033)
Equity in net income (loss) of subsidiaries | 26,368 | (105,453) | 1,769 | (476,609)
Income (loss) from continuing operations before income taxes | 26,368 | (105,452) | 1,769 | (476,608)
Income (loss) from continuing operations | 26,368 | (105,452) | 1,769 | (476,608)
NET INCOME (LOSS) | 26,368 | (105,452) | 1,769 | (476,608)
Guarantor/Parent | Reportable Legal Entities |  |  |  |
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS |  |  |  |
Operating costs and other | 3,712 | 3,072 | 9,573 | 9,152
Operating income (loss) from continuing operations | (3,712) | (3,072) | (9,573) | (9,152)
Other income (expense), net | 16 | (103) | (235) | (100)
Interest expense | (62) | (40) | (186) | (59)
Equity in net income (loss) of subsidiaries | (18,572) | 92,413 | 22,042 | 453,478
Income (loss) from continuing operations before income taxes | (22,330) | 89,198 | 12,048 | 444,167
Income tax provision | (1,130) | (1,674) | (3,959) | (3,856)
Income (loss) from continuing operations | (21,200) | 90,872 | 16,007 | 448,023
NET INCOME (LOSS) | (21,200) | 90,872 | 16,007 | 448,023
Issuer Subsidiary | Reportable Legal Entities |  |  |  |
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS |  |  |  |
Operating revenues | 315,077 | 543,834 | 1,103,361 | 2,270,839
Operating costs and other | 314,620 | 423,409 | 1,003,369 | 1,600,530
Operating income (loss) from continuing operations | 457 | 120,425 | 99,992 | 670,309
Other income (expense), net | 1,290 | 1,565 | 2,680 | 6,224
Interest expense | (5,597) | (4,638) | (15,587) | (4,741)
Equity in net income (loss) of subsidiaries | (7,796) | 13,040 | (23,811) | 23,131
Income (loss) from continuing operations before income taxes | (11,646) | 130,392 | 63,274 | 694,923
Income tax provision | 7,230 | 38,941 | 42,114 | 243,986
Income (loss) from continuing operations | (18,876) | 91,451 | 21,160 | 450,937
NET INCOME (LOSS) | (18,876) | 91,451 | 21,160 | 450,937
Non-Guarantor Subsidiaries | Reportable Legal Entities |  |  |  |
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS |  |  |  |
Operating revenues | 51,429 | 117,629 | 189,216 | 337,121
Operating costs and other | 61,700 | 100,941 | 213,640 | 304,566
Operating income (loss) from continuing operations | (10,271) | 16,688 | (24,424) | 32,555
Other income (expense), net | 276 | 852 | 1,831 | 1,444
Interest expense | (748) | (1,458) | (879) | (4,526)
Income (loss) from continuing operations before income taxes | (10,743) | 16,082 | (23,472) | 29,473
Income tax provision | (3,258) | 2,054 | (4,415) | 3,761
Income (loss) from continuing operations | (7,485) | 14,028 | (19,057) | 25,712
Income (loss) from discontinued operations before income taxes | 2,193 | (27) | 2,241 | (118)
Income tax provision | 2,200 |  | 6,113 | (77)
Loss from discontinued operations | (7) | (27) | (3,872) | (41)
NET INCOME (LOSS) | $ (7,492) | $ 14,001 | $ (22,929) | $ 25,671

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