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Income Taxes | 12 Months Ended
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Dec. 31, 2015
Income Taxes [Abstract] |
Income Taxes | (5) Income Taxes (in thousands) Our income tax is different than the expected amount computed using the applicable federal and state statutory income tax rates. The reasons for and effects of such differences for the years ended December 31 are below:
| 2015 |  |  | 2014 |  |  |  | 2013 |
Expected amount | $ | 9,653 |  |  | $ | 3,745 |  |  | $ | 10,359 |
Change in Indiana rate |  | (85 | ) |  |  | (1,407 | ) |  |  |  |
State income taxes, net of federal benefit |  | 612 |  |  |  | 186 |  |  |  | 877 |
Percentage depletion |  | (2,606 | ) |  |  | (1,996 | ) |  |  | (3,826 | )
Stock-based compensation |  |  |  |  |  | 343 |  |  |  |  |
Captive insurance |  | (419 | ) |  |  | (419 | ) |  |  | (419 | )
Other |  | 283 |  |  |  | 30 |  |  |  | 184 |
| $ | 7,438 |  |  | $ | 482 |  |  | $ | 7,175 |
The deferred tax assets and liabilities resulting from temporary differences between book and tax basis are comprised of the following at December 31:
|  | 2015 |  |  |  | 2014 |
Long-term deferred tax assets: |  |  |  |  |  |  |
Stock-based compensation | $ | 458 |  |  | $ | 347 |
Investment in Savoy |  | 827 |  |  |  | 1,227 |
Oil and gas properties |  | (15,711 | ) |  |  | (2,234 | )
Net operating loss |  | 7,583 |  |  |  |  |
Alternative minimum tax credit |  | 4,388 |  |  |  | 4,043 |
Other |  | 18 |  |  |  |  |
Net long-term deferred tax assets |  | (2,437 | ) |  |  | 3,383 |
Long-term deferred tax liabilities: |  |  |  |  |  |  |
Coal properties |  | (46,596 | ) |  |  | (44,964 | )
Net deferred tax liability | $ | 49,033 |  |  | $ | 41,581 |
We have analyzed our filing positions in all of the federal and state jurisdictions where we are required to file income tax returns, as well as all open tax years in these jurisdictions. We identified our federal tax return and our Indiana state tax return as “major” tax jurisdictions. During 2012, the IRS completed an examination of our 2009 and 2010 federal tax returns and there were no significant adjustments. During 2012, the State of Indiana completed their examination of our 2008-2010 returns and no adjustments were proposed. We believe that our income tax filing positions and deductions will be sustained on audit and do not anticipate any adjustments that will result in a material change to our consolidated financial position.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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