2.4.0.83090 - Disclosure - Commitments and Contingencies (Tables)truefalsefalse1false
falsefalseD2013Q2YTDhttp://www.sec.gov/CIK0001441849duration2013-01-01T00:00:002013-06-30T00:00:001true
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2us-gaap_UnrecordedUnconditionalPurchaseObligationsDisclosureTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel| 1falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;">
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<p style="TEXT-INDENT: 0.5in; MARGIN: 0in 0in 0pt;"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">We</font> <font style="FONT-SIZE: 10pt;" size="2">had outstanding purchase commitments consisting of (in thousands):</font></p>
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<table style="text-align:left;TEXT-ALIGN: left; WIDTH: 431px; BORDER-COLLAPSE: collapse; MARGIN-LEFT: 0.8in;" border="0" cellspacing="0" cellpadding="0" width="431">
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<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.9%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt;" align="center"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.96%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt;" align="center"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 8pt; FONT-WEIGHT: bold;" size="1">June 30,</font></b></p></td>
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<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt;" align="center"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.96%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt;" align="center"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 8pt; FONT-WEIGHT: bold;" size="1">December 31,</font></b></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt;" align="center"> </p></td></tr>
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<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 65.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="65%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.9%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt;" align="center"> </p></td>
<td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.96%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt;" align="center"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 8pt; FONT-WEIGHT: bold;" size="1">2013</font></b></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.9%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt;" align="center"> </p></td>
<td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.96%; PADDING-RIGHT: 0in; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt;" align="center"><b><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 8pt; FONT-WEIGHT: bold;" size="1">2012</font></b></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%">
<p style="TEXT-ALIGN: center; MARGIN: 0in 0in 0pt;" align="center"> </p></td></tr>
<tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;">
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 65.14%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="65%">
<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 10pt;"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">Capital commitments</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.9%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td>
<td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.96%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt;" align="right"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.9%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td>
<td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.96%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; BORDER-TOP: medium none; BORDER-RIGHT: medium none; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt;" align="right"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td></tr>
<tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;">
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 65.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="65%">
<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 20pt;"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">Equipment</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.9%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt;"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">$</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.66%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="12%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt;" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">12,636</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.9%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt;"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">$</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.66%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="12%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt;" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">20,317</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td></tr>
<tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;">
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 65.14%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="65%">
<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 20pt;"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">Land</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.9%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.96%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt;" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">23,700</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.9%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.96%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt;" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">23,700</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td></tr>
<tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;">
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 65.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="65%">
<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 10pt;"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.9%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.96%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt;" align="right"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.9%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.96%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt;" align="right"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td></tr>
<tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;">
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 65.14%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="65%">
<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 10pt;"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">Supplies and services</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.9%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.96%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt;" align="right"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.9%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.96%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt;" align="right"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td></tr>
<tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;">
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 65.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="65%">
<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 20pt;"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">Coal purchase commitments</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.9%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt;"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">$</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.66%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="12%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt;" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">21,143</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.9%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.3%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt;"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">$</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 12.66%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="12%">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt;" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">28,633</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td></tr>
<tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;">
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 65.14%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="65%">
<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 20pt;"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">Transportation agreements</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.9%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.96%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt;" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">229,307</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.9%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.96%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="13%" colspan="2">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt;" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">159,398</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; BACKGROUND: #cceeff; PADDING-TOP: 0in;" bgcolor="#CCEEFF" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td></tr>
<tr style="padding:0;PADDING-BOTTOM: 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; PADDING-TOP: 0px;">
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 65.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="65%">
<p style="TEXT-INDENT: -10pt; MARGIN: 0in 0in 0pt 20pt;"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">Materials and supplies</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.9%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.96%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt;" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">24,561</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 2.9%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="2%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 13.96%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="13%" colspan="2">
<p style="TEXT-ALIGN: right; MARGIN: 0in 0in 0pt;" align="right"><font style="FONT-FAMILY: Times New Roman; FONT-SIZE: 10pt;" size="2">24,552</font></p></td>
<td style="PADDING-BOTTOM: 0in; PADDING-LEFT: 0in; WIDTH: 1.14%; PADDING-RIGHT: 0in; PADDING-TOP: 0in;" valign="bottom" width="1%">
<p style="MARGIN: 0in 0in 0pt;"> </p></td></tr></table></div>falsefalsefalse | nonnum:textBlockItemTypenaTabular disclosure of unconditional purchase obligations that are not recognized as a liability on the balance sheet, including the nature and significant terms of an unconditional purchase obligation; the amount of the fixed and determinable portion of the obligation as of the date of the latest balance sheet presented in the aggregate and, if determinable, for each of the five succeeding fiscal years; the nature of any variable components of the obligation; the amount purchased under the obligation (for example, the take-or-pay or throughput contract) for the reporting period; and may include the amount of imputed interest necessary to reduce the obligation to present value.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308
Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25336-109308
Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 47
-Paragraph 7
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 47
-Paragraph 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
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