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Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2014
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Our effective tax rate was 35 percent in second quarter and first six months 2014, which includes a one percent benefit for noncontrolling interests. Our effective tax rate was 43 percent in second quarter 2013 and 32 percent in first six months 2013, which included a four percent benefit for noncontrolling interests. In addition, 2014 and 2013 effective tax rates 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.

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.

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