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<!--DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" -->
<!-- Begin Block Tagged Note 5 - us-gaap:DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock-->
<div style="font-family: 'Times New Roman',Times,serif; margin-left: .25in; width: 7.20in">
<div align="left" style="font-size: 10pt; margin-top: 10pt"><b>(5) Prepaid Expenses and Other Current Assets</b>
</div>
<div align="left" style="font-size: 10pt; margin-top: 10pt; text-indent: 4%"><i>Prepaid expenses and other current assets </i>consisted of the following:
</div>
<div align="center">
<table style="font-size: 10pt; text-align: left" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<tr valign="bottom">
<td width="72%"> </td>
<td width="3%"> </td>
<td width="1%"> </td>
<td width="9%"> </td>
<td width="1%"> </td>
<td width="3%"> </td>
<td width="1%"> </td>
<td width="9%"> </td>
<td width="1%"> </td>
</tr>
<tr style="font-size: 10pt" valign="bottom">
<td> </td>
<td> </td>
<td nowrap="nowrap" align="center" colspan="6" style="border-bottom: 1px solid #000000"><b>December 31,</b></td>
<td> </td>
</tr>
<tr style="font-size: 10pt" valign="bottom">
<td> </td>
<td> </td>
<td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>2009</b></td>
<td> </td>
<td> </td>
<td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>2008</b></td>
<td> </td>
</tr>
<!-- End Table Head -->
<!-- Begin Table Body -->
<tr valign="bottom" style="background: #cceeff">
<td>
<div style="margin-left:15px; text-indent:-15px">Marketable securities — short term <sup style="font-size: 85%; vertical-align: text-top">(1)</sup>
</div></td>
<td> </td>
<td align="left">$</td>
<td align="right">29,501</td>
<td> </td>
<td> </td>
<td align="left">$</td>
<td align="right">—</td>
<td> </td>
</tr>
<tr valign="bottom">
<td>
<div style="margin-left:15px; text-indent:-15px">Prepaid insurance
</div></td>
<td> </td>
<td> </td>
<td align="right">33,776</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">22,148</td>
<td> </td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td>
<div style="margin-left:15px; text-indent:-15px">Notes and other receivables
</div></td>
<td> </td>
<td> </td>
<td align="right">28,402</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">15,074</td>
<td> </td>
</tr>
<tr valign="bottom">
<td>
<div style="margin-left:15px; text-indent:-15px">Prepaid longwall move expenses
</div></td>
<td> </td>
<td> </td>
<td align="right">3,186</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">—</td>
<td> </td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td>
<div style="margin-left:15px; text-indent:-15px">Advanced mining royalties, net
</div></td>
<td> </td>
<td> </td>
<td align="right">3,522</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">2,538</td>
<td> </td>
</tr>
<tr valign="bottom">
<td>
<div style="margin-left:15px; text-indent:-15px">Refundable income taxes
</div></td>
<td> </td>
<td> </td>
<td align="right">29,590</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">—</td>
<td> </td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td>
<div style="margin-left:15px; text-indent:-15px">Derivative financial instruments
</div></td>
<td> </td>
<td> </td>
<td align="right">7,939</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">8,040</td>
<td> </td>
</tr>
<tr valign="bottom">
<td>
<div style="margin-left:15px; text-indent:-15px">Construction costs in excess of billings
</div></td>
<td> </td>
<td> </td>
<td align="right">19,535</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">—</td>
<td> </td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td>
<div style="margin-left:15px; text-indent:-15px">Prepaid freight
</div></td>
<td> </td>
<td> </td>
<td align="right">13,229</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">11,312</td>
<td> </td>
</tr>
<tr valign="bottom">
<td>
<div style="margin-left:15px; text-indent:-15px">Other prepaid expenses
</div></td>
<td> </td>
<td> </td>
<td align="right">8,273</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">6,213</td>
<td> </td>
</tr>
<tr style="font-size: 1px">
<td>
<div style="margin-left:15px; text-indent:-15px"> 
</div></td>
<td> </td>
<td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td>
<td> </td>
<td> </td>
<td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td>
<td> </td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td>
<div style="margin-left:30px; text-indent:-15px">Total prepaid expenses and other current assets
</div></td>
<td> </td>
<td align="left">$</td>
<td align="right">176,953</td>
<td> </td>
<td> </td>
<td align="left">$</td>
<td align="right">65,325</td>
<td> </td>
</tr>
<tr style="font-size: 1px">
<td>
<div style="margin-left:15px; text-indent:-15px"> 
</div></td>
<td> </td>
<td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td>
<td> </td>
<td> </td>
<td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td>
<td> </td>
</tr>
<!-- End Table Body -->
</table>
</div>
<table width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt; text-align: left">
<tr style="font-size: 6pt">
<td width="3%"> </td>
<td width="1%"> </td>
<td width="96"> </td>
</tr>
<tr valign="top">
<td nowrap="nowrap" align="left">(1)</td>
<td> </td>
<td>Short-term marketable securities consisted of the following:</td>
</tr>
</table>
<div align="center">
<table style="font-size: 10pt; text-align: left" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<tr valign="bottom">
<td width="44%"> </td>
<td width="3%"> </td>
<td width="1%"> </td>
<td width="9%"> </td>
<td width="1%"> </td>
<td width="3%"> </td>
<td width="1%"> </td>
<td width="9%"> </td>
<td width="1%"> </td>
<td width="3%"> </td>
<td width="1%"> </td>
<td width="9%"> </td>
<td width="1%"> </td>
<td width="3%"> </td>
<td width="1%"> </td>
<td width="9%"> </td>
<td width="1%"> </td>
</tr>
<tr style="font-size: 10pt" valign="bottom">
<td> </td>
<td> </td>
<td nowrap="nowrap" align="center" colspan="14" style="border-bottom: 1px solid #000000"><b>December 31, 2009</b></td>
<td> </td>
</tr>
<tr style="font-size: 10pt" valign="bottom">
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td nowrap="nowrap" align="center" colspan="6" style="border-bottom: 1px solid #000000"><b>Unrealized</b></td>
<td> </td>
<td> </td>
<td nowrap="nowrap" align="center" colspan="2"> </td>
<td> </td>
</tr>
<tr style="font-size: 10pt" valign="bottom">
<td> </td>
<td> </td>
<td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>Cost</b></td>
<td> </td>
<td> </td>
<td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>Gain</b></td>
<td> </td>
<td> </td>
<td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>Loss</b></td>
<td> </td>
<td> </td>
<td nowrap="nowrap" align="center" colspan="2" style="border-bottom: 1px solid #000000"><b>Fair value</b></td>
<td> </td>
</tr>
<!-- End Table Head -->
<!-- Begin Table Body -->
<tr valign="bottom" style="background: #cceeff">
<td>
<div style="margin-left:15px; text-indent:-15px">Short-term marketable securities:
</div></td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr valign="bottom">
<td>
<div style="margin-left:30px; text-indent:-15px">US treasury and agency securities
</div></td>
<td> </td>
<td align="left">$</td>
<td align="right">22,338</td>
<td> </td>
<td> </td>
<td align="left">$</td>
<td align="right">—</td>
<td> </td>
<td> </td>
<td nowrap="nowrap" align="left">$</td>
<td align="right">(15</td>
<td nowrap="nowrap">)</td>
<td> </td>
<td align="left">$</td>
<td align="right">22,323</td>
<td> </td>
</tr>
<tr valign="bottom" style="background: #cceeff">
<td>
<div style="margin-left:30px; text-indent:-15px">Corporate debt securities
</div></td>
<td> </td>
<td> </td>
<td align="right">7,180</td>
<td> </td>
<td> </td>
<td> </td>
<td align="right">—</td>
<td> </td>
<td> </td>
<td nowrap="nowrap" align="left"> </td>
<td align="right">(2</td>
<td nowrap="nowrap">)</td>
<td> </td>
<td> </td>
<td align="right">7,178</td>
<td> </td>
</tr>
<tr style="font-size: 1px">
<td>
<div style="margin-left:15px; text-indent:-15px"> 
</div></td>
<td> </td>
<td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td>
<td> </td>
<td> </td>
<td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td>
<td> </td>
<td> </td>
<td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td>
<td> </td>
<td> </td>
<td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td>
<td> </td>
</tr>
<tr valign="bottom"><!-- Blank Space -->
<td>
<div style="margin-left:15px; text-indent:-15px"> 
</div></td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr valign="bottom">
<td>
<div style="margin-left:15px; text-indent:-15px">Total short-term marketable securities
</div></td>
<td> </td>
<td align="left">$</td>
<td align="right">29,518</td>
<td> </td>
<td> </td>
<td align="left">$</td>
<td align="right">—</td>
<td> </td>
<td> </td>
<td nowrap="nowrap" align="left">$</td>
<td align="right">(17</td>
<td nowrap="nowrap">)</td>
<td> </td>
<td align="left">$</td>
<td align="right">29,501</td>
<td> </td>
</tr>
<tr style="font-size: 1px">
<td>
<div style="margin-left:30px; text-indent:-15px"> 
</div></td>
<td> </td>
<td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td>
<td> </td>
<td> </td>
<td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td>
<td> </td>
<td> </td>
<td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td>
<td> </td>
<td> </td>
<td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td>
<td> </td>
</tr>
<!-- End Table Body -->
</table>
</div>
</div>
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