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Guarantor Subsidiaries (Consolidating Income Statement) (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | Dec. 31, 2015
Revenues |  |  |  |  |  |
Petroleum product sales | [1] | $ 2,394,951 | $ 2,770,169 | $ 6,654,970 | $ 7,987,158 |
Merchandise sales |  | 598,968 | 591,584 | 1,750,162 | 1,687,885 |
Other operating revenues |  | 48,819 | 20,754 | 133,630 | 96,214 |
Total revenues |  | 3,042,738 | 3,382,507 | 8,538,762 | 9,771,257 |
Costs and Operating Expenses |  |  |  |  |  |
Petroleum product cost of goods sold | [1] | 2,275,487 | 2,594,273 | 6,301,552 | 7,605,961 |
Merchandise cost of goods sold |  | 503,266 | 505,200 | 1,475,869 | 1,444,293 |
Station and other operating expenses |  | 127,991 | 121,551 | 369,910 | 358,463 |
Depreciation and amortization |  | 25,576 | 21,695 | 72,747 | 64,013 |
Selling, general and administrative |  | 30,726 | 33,016 | 94,549 | 96,995 |
Accretion of asset retirement obligations |  | 411 | 380 | 1,236 | 1,137 | $ 1,521
Total costs and operating expenses |  | 2,963,457 | 3,276,115 | 8,315,863 | 9,570,862 |
Income (loss) from operations |  | 79,281 | 106,392 | 222,899 | 200,395 |
Other income (expense) |  |  |  |  |  |
Interest income |  | 144 | 20 | 474 | 1,908 |
Interest expense |  | (10,182) | (8,382) | (29,780) | (25,040) |
Loss on sale of assets |  | (335) | (4,072) | 88,640 | (4,091) |
Other nonoperating income (expense) |  | 2,848 | 106 | 2,966 | 616 |
Total other income (expense) |  | (7,525) | (12,328) | 62,300 | (26,607) |
Income (loss) from continuing operations before income taxes |  | 71,756 | 94,064 | 285,199 | 173,788 |
Income tax expense |  | 26,265 | 34,043 | 107,524 | 65,430 |
Income from continuing operations |  | 45,491 | 60,021 | 177,675 | 108,358 |
Income (loss) from discontinued operations |  | 0 | 510 | 0 | 1,296 |
Equity earnings in affiliates, net of tax |  | 0 | 0 | 0 | 0 |
Net Income (Loss) |  | 45,491 | 60,531 | 177,675 | 109,654 |
Eliminations |  |  |  |  |  |
Revenues |  |  |  |  |  |
Petroleum product sales |  | 0 | (35,200) | 0 | (106,917) |
Merchandise sales |  | 0 | 0 | 0 | 0 |
Other operating revenues |  | 0 | 0 | 0 | 0 |
Total revenues |  | 0 | (35,200) | 0 | (106,917) |
Costs and Operating Expenses |  |  |  |  |  |
Petroleum product cost of goods sold |  | 0 | (35,200) | 0 | (106,917) |
Merchandise cost of goods sold |  | 0 | 0 | 0 | 0 |
Station and other operating expenses |  | 0 | 0 | 0 | 0 |
Depreciation and amortization |  | 0 | 0 | 0 | 0 |
Selling, general and administrative |  | 0 | 0 | 0 | 0 |
Accretion of asset retirement obligations |  | 0 | 0 | 0 | 0 |
Total costs and operating expenses |  | 0 | (35,200) | 0 | (106,917) |
Income (loss) from operations |  | 0 | 0 | 0 | 0 |
Other income (expense) |  |  |  |  |  |
Interest income |  | 0 | 0 | 0 | 0 |
Interest expense |  | 0 | 0 | 0 | 0 |
Loss on sale of assets |  | 0 | 0 | 0 | 0 |
Other nonoperating income (expense) |  | 0 | 0 | 0 | 0 |
Total other income (expense) |  | 0 | 0 | 0 | 0 |
Income (loss) from continuing operations before income taxes |  | 0 | 0 | 0 | 0 |
Income tax expense |  | 0 | 0 | 0 | 0 |
Income from continuing operations |  | 0 | 0 | 0 | 0 |
Income (loss) from discontinued operations |  | 0 | 0 | 0 | 0 |
Equity earnings in affiliates, net of tax |  | (45,491) | (61,041) | (177,674) | (110,949) |
Net Income (Loss) |  | (45,491) | (61,041) | (177,674) | (110,949) |
Parent Company |  |  |  |  |  |
Revenues |  |  |  |  |  |
Petroleum product sales |  | 0 | 0 | 0 | 0 |
Merchandise sales |  | 0 | 0 | 0 | 0 |
Other operating revenues |  | 0 | 0 | 0 | 0 |
Total revenues |  | 0 | 0 | 0 | 0 |
Costs and Operating Expenses |  |  |  |  |  |
Petroleum product cost of goods sold |  | 0 | 0 | 0 | 0 |
Merchandise cost of goods sold |  | 0 | 0 | 0 | 0 |
Station and other operating expenses |  | 0 | 0 | 0 | 0 |
Depreciation and amortization |  | 0 | 0 | 0 | 0 |
Selling, general and administrative |  | 0 | 0 | 0 | 0 |
Accretion of asset retirement obligations |  | 0 | 0 | 0 | 0 |
Total costs and operating expenses |  | 0 | 0 | 0 | 0 |
Income (loss) from operations |  | 0 | 0 | 0 | 0 |
Other income (expense) |  |  |  |  |  |
Interest income |  | 0 | 0 | 0 | 0 |
Interest expense |  | 0 | 0 | 0 | 0 |
Loss on sale of assets |  | 0 | 0 | 0 | 0 |
Other nonoperating income (expense) |  | 0 | 0 | 0 | 0 |
Total other income (expense) |  | 0 | 0 | 0 | 0 |
Income (loss) from continuing operations before income taxes |  | 0 | 0 | 0 | 0 |
Income tax expense |  | 0 | 0 | 0 | 0 |
Income from continuing operations |  | 0 | 0 | 0 | 0 |
Income (loss) from discontinued operations |  | 0 | 0 | 0 | 0 |
Equity earnings in affiliates, net of tax |  | 45,491 | 60,531 | 177,675 | 109,654 |
Net Income (Loss) |  | 45,491 | 60,531 | 177,675 | 109,654 |
Issuer |  |  |  |  |  |
Revenues |  |  |  |  |  |
Petroleum product sales |  | 2,394,951 | 2,805,369 | 6,654,970 | 8,094,075 |
Merchandise sales |  | 598,968 | 591,584 | 1,750,162 | 1,687,885 |
Other operating revenues |  | 48,819 | 20,754 | 133,630 | 96,214 |
Total revenues |  | 3,042,738 | 3,417,707 | 8,538,762 | 9,878,174 |
Costs and Operating Expenses |  |  |  |  |  |
Petroleum product cost of goods sold |  | 2,275,487 | 2,629,473 | 6,301,552 | 7,712,878 |
Merchandise cost of goods sold |  | 503,266 | 505,200 | 1,475,869 | 1,444,293 |
Station and other operating expenses |  | 127,991 | 121,551 | 369,910 | 358,463 |
Depreciation and amortization |  | 25,576 | 21,695 | 72,747 | 64,013 |
Selling, general and administrative |  | 30,726 | 33,016 | 94,548 | 96,994 |
Accretion of asset retirement obligations |  | 411 | 380 | 1,236 | 1,137 |
Total costs and operating expenses |  | 2,963,457 | 3,311,315 | 8,315,862 | 9,677,778 |
Income (loss) from operations |  | 79,281 | 106,392 | 222,900 | 200,396 |
Other income (expense) |  |  |  |  |  |
Interest income |  | 144 | 20 | 474 | 1,908 |
Interest expense |  | (10,182) | (8,382) | (29,780) | (25,040) |
Loss on sale of assets |  | (335) | (4,072) | 88,640 | (4,091) |
Other nonoperating income (expense) |  | 2,848 | 106 | 2,966 | 616 |
Total other income (expense) |  | (7,525) | (12,328) | 62,300 | (26,607) |
Income (loss) from continuing operations before income taxes |  | 71,756 | 94,064 | 285,200 | 173,789 |
Income tax expense |  | 26,265 | 34,043 | 107,524 | 65,430 |
Income from continuing operations |  | 45,491 | 60,021 | 177,676 | 108,359 |
Income (loss) from discontinued operations |  | 0 | 0 | 0 | 0 |
Equity earnings in affiliates, net of tax |  | 0 | 510 | (1) | 1,295 |
Net Income (Loss) |  | 45,491 | 60,531 | 177,675 | 109,654 |
Guarantor Subsidiaries |  |  |  |  |  |
Revenues |  |  |  |  |  |
Petroleum product sales |  | 0 | 0 | 0 | 0 |
Merchandise sales |  | 0 | 0 | 0 | 0 |
Other operating revenues |  | 0 | 0 | 0 | 0 |
Total revenues |  | 0 | 0 | 0 | 0 |
Costs and Operating Expenses |  |  |  |  |  |
Petroleum product cost of goods sold |  | 0 | 0 | 0 | 0 |
Merchandise cost of goods sold |  | 0 | 0 | 0 | 0 |
Station and other operating expenses |  | 0 | 0 | 0 | 0 |
Depreciation and amortization |  | 0 | 0 | 0 | 0 |
Selling, general and administrative |  | 0 | 0 | 1 | 1 |
Accretion of asset retirement obligations |  | 0 | 0 | 0 | 0 |
Total costs and operating expenses |  | 0 | 0 | 1 | 1 |
Income (loss) from operations |  | 0 | 0 | (1) | (1) |
Other income (expense) |  |  |  |  |  |
Interest income |  | 0 | 0 | 0 | 0 |
Interest expense |  | 0 | 0 | 0 | 0 |
Loss on sale of assets |  | 0 | 0 | 0 | 0 |
Other nonoperating income (expense) |  | 0 | 0 | 0 | 0 |
Total other income (expense) |  | 0 | 0 | 0 | 0 |
Income (loss) from continuing operations before income taxes |  | 0 | 0 | (1) | (1) |
Income tax expense |  | 0 | 0 | 0 | 0 |
Income from continuing operations |  | 0 | 0 | (1) | (1) |
Income (loss) from discontinued operations |  | 0 | 0 | 0 | 0 |
Equity earnings in affiliates, net of tax |  | 0 | 0 | 0 | 0 |
Net Income (Loss) |  | 0 | 0 | (1) | (1) |
Non-Guarantor Subsidiaries |  |  |  |  |  |
Revenues |  |  |  |  |  |
Petroleum product sales |  | 0 | 0 | 0 | 0 |
Merchandise sales |  | 0 | 0 | 0 | 0 |
Other operating revenues |  | 0 | 0 | 0 | 0 |
Total revenues |  | 0 | 0 | 0 | 0 |
Costs and Operating Expenses |  |  |  |  |  |
Petroleum product cost of goods sold |  | 0 | 0 | 0 | 0 |
Merchandise cost of goods sold |  | 0 | 0 | 0 | 0 |
Station and other operating expenses |  | 0 | 0 | 0 | 0 |
Depreciation and amortization |  | 0 | 0 | 0 | 0 |
Selling, general and administrative |  | 0 | 0 | 0 | 0 |
Accretion of asset retirement obligations |  | 0 | 0 | 0 | 0 |
Total costs and operating expenses |  | 0 | 0 | 0 | 0 |
Income (loss) from operations |  | 0 | 0 | 0 | 0 |
Other income (expense) |  |  |  |  |  |
Interest income |  | 0 | 0 | 0 | 0 |
Interest expense |  | 0 | 0 | 0 | 0 |
Loss on sale of assets |  | 0 | 0 | 0 | 0 |
Other nonoperating income (expense) |  | 0 | 0 | 0 | 0 |
Total other income (expense) |  | 0 | 0 | 0 | 0 |
Income (loss) from continuing operations before income taxes |  | 0 | 0 | 0 | 0 |
Income tax expense |  | 0 | 0 | 0 | 0 |
Income from continuing operations |  | 0 | 0 | 0 | 0 |
Income (loss) from discontinued operations |  | 0 | 510 | 0 | 1,296 |
Equity earnings in affiliates, net of tax |  | 0 | 0 | 0 | 0 |
Net Income (Loss) |  | $ 0 | $ 510 | $ 0 | $ 1,296 |
[1] | Includes excise taxes of: $505,814 and $1,466,347 for the three and nine months ended September 30, 2016, and $513,427 and $1,459,871 for the three and nine months ended September 30, 2015.

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