XML 58 R18.htm IDEA: XBRL DOCUMENT v2.4.1.9
Income Taxes
3 Months Ended
Mar. 31, 2015
Income Tax Disclosure [Abstract]  
Income Taxes
Income Taxes
Our effective tax rate was 35 percent in first quarter 2015, which includes a two percent benefit for noncontrolling interests and a two percent detriment for share-based compensation benefits that will not be realized. Our effective tax rate was 34 percent in first quarter 2014, which included a two percent benefit for noncontrolling interests. Our effective tax rates also include the effect of state income taxes, nondeductible items and benefits of percentage depletion.
We have not provided a valuation allowance for our federal deferred tax asset because we believe it is likely it will be recoverable in future periods.