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INCOME TAXES | 6 Months Ended
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Jun. 30, 2016
Income Tax Disclosure [Abstract] |
Income Taxes | NOTE 9 - INCOME TAXES Our 2016 estimated annual effective tax rate before discrete items is approximately 3.1 percent. The annual effective tax rate differs from the U.S. statutory rate of 35 percent primarily due to deductions for percentage depletion in excess of cost depletion related to U.S. operations and the reversal of valuation allowances in excess of the deferred tax assets generated in the current year. A comparable annual effective tax rate has not been provided for the six months ended 2015 as our loss for the six months ended June 30, 2015 exceeded the anticipated ordinary loss for the full year and, therefore, our tax expense recorded was calculated using actual year-to-date amounts rather than an estimated annual effective tax rate. For the three and six months ended June 30, 2016, we recorded discrete items that resulted in an income tax expense of $0.6 million and $0.7 million, respectively. These adjustments relate primarily to quarterly interest accrued on reserves for uncertain tax positions. For the three and six months ended June 30, 2015 there were discrete items that resulted in an income tax benefit of $0.3 million and income tax expense of $167.2 million, respectively. These items were largely related to the recording of valuation allowances against existing deferred tax assets as a result of the determination that these would no longer be realizable.

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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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