2.2.0.25falsefalse11801 - Disclosure - SUPPLEMENTAL OIL AND GAS DISCLOSUREStruefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010
USD ($)
USD ($) / shares
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<p style="margin-top: 0px; margin-bottom: 0px;" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>SUPPLEMENTAL OIL AND GAS DISCLOSURES </b></font></p>
<p style="margin-top: 0px; margin-bottom: 0px;" align="center"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>(UNAUDITED) </b></font></p>
<p style="margin-top: 12px; text-indent: 4%; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2">Our oil and gas operations are substantially located in the United States. We do have operations in Canada that are insignificant. The capitalized costs at year end and costs incurred during the year were as follows: </font></p>
<p style="margin-top: 0px; margin-bottom: 0px; font-size: 12px;"> </p>
<table border="0" cellspacing="0" cellpadding="0" width="100%" align="center">
<tr><td width="64%"> </td>
<td valign="bottom" width="4%"> </td>
<td> </td>
<td> </td>
<td> </td>
<td valign="bottom" width="4%"> </td>
<td> </td>
<td> </td>
<td> </td>
<td valign="bottom" width="4%"> </td>
<td> </td>
<td> </td>
<td> </td></tr>
<tr><td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>2010</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>2009</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>2008</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td></tr>
<tr><td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom" colspan="10" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>(In thousands)</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Capitalized costs:</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Proved properties</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2,738,093</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2,309,193</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2,090,623</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Unproved properties</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">175,065</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">140,129</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">160,034</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td></tr>
<tr><td valign="top"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2,913,158</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2,449,322</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2,250,657</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Accumulated depreciation, depletion, amortization and impairment</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(1,542,352</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(1,424,559</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(1,029,617</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 5em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Net capitalized costs</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1,370,806</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1,024,763</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1,221,040</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Cost incurred:</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Unproved properties acquired</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">75,739</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">37,137</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">113,104</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Proved properties acquired</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">50,000</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">3,722</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">41,227</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Exploration</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">48,304</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">30,547</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">41,474</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Development</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">279,903</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">154,579</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">351,876</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Asset retirement obligation</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">9,924</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">4,565</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">13,867</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 5em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Total costs incurred</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">463,870</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">230,550</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">561,548</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td></tr></table>
<p style="margin-top: 12px; text-indent: 4%; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2">The following table shows a summary of the oil and natural gas property costs not being amortized at December 31, 2010, by the year in which such costs were incurred: </font></p>
<p style="margin-top: 0px; margin-bottom: 0px; font-size: 12px;"> </p>
<table border="0" cellspacing="0" cellpadding="0" width="92%" align="center">
<tr><td width="49%"> </td>
<td valign="bottom" width="4%"> </td>
<td> </td>
<td> </td>
<td> </td>
<td valign="bottom" width="4%"> </td>
<td> </td>
<td> </td>
<td> </td>
<td valign="bottom" width="4%"> </td>
<td> </td>
<td> </td>
<td> </td>
<td valign="bottom" width="4%"> </td>
<td> </td>
<td> </td>
<td> </td>
<td valign="bottom" width="4%"> </td>
<td> </td>
<td> </td>
<td> </td></tr>
<tr><td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>2010</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>2009</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>2008</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>2007</b></font><br /><font style="font-family: Times New Roman;" class="_mt" size="1"><b>and<br />Prior</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>Total</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td></tr>
<tr><td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom" colspan="18" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>(In thousands)</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Undeveloped Leasehold Acquired</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">68,078</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">24,490</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">53,790</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">28,707</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">175,065</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr></table>
<p style="margin-top: 12px; text-indent: 4%; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2">Unproved properties not subject to amortization relates to properties which are not individually significant and consist primarily of lease acquisition costs. The evaluation process associated with these properties has not been completed and therefore, the company is unable to estimate when these costs will be included in the amortization calculation. </font></p>
<p style="margin-top: 12px; text-indent: 4%; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2">The results of operations for producing activities are as follows: </font></p>
<p style="margin-top: 0px; margin-bottom: 0px; font-size: 12px;"> </p>
<table border="0" cellspacing="0" cellpadding="0" width="92%" align="center">
<tr><td width="63%"> </td>
<td valign="bottom" width="6%"> </td>
<td> </td>
<td> </td>
<td> </td>
<td valign="bottom" width="5%"> </td>
<td> </td>
<td> </td>
<td> </td>
<td valign="bottom" width="5%"> </td>
<td> </td>
<td> </td>
<td> </td></tr>
<tr><td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>2010</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>2009</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>2008</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td></tr>
<tr><td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom" colspan="10" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>(In thousands)</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Revenues</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">392,229</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">352,572</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">545,937</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Production costs</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(91,143</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(75,214</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(102,207</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Depreciation, depletion, amortization and impairment</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(117,793</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(394,942</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(440,588</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td></tr>
<tr><td valign="top"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">183,293</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(117,584</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">3,142</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Income tax (expense) benefit</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(70,110</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">43,153</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(1,141</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Results of operations for producing activities (excluding corporate overhead and financing costs)</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">113,183</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(74,431</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2,001</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td></tr></table>
<p style="margin-top: 12px; margin-bottom: 0px; font-size: 1px;"> </p>
<p style="margin-top: 0px; text-indent: 4%; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2">Estimated quantities of proved developed oil, liquids and natural gas reserves and changes in net quantities of proved developed and undeveloped oil, liquids and natural gas reserves were as follows: </font></p>
<p style="margin-top: 0px; margin-bottom: 0px; font-size: 12px;"> </p>
<table border="0" cellspacing="0" cellpadding="0" width="100%" align="center">
<tr><td width="78%"> </td>
<td valign="bottom" width="2%"> </td>
<td> </td>
<td> </td>
<td> </td>
<td valign="bottom" width="2%"> </td>
<td> </td>
<td> </td>
<td> </td>
<td valign="bottom" width="2%"> </td>
<td> </td>
<td> </td>
<td> </td></tr>
<tr><td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>Oil<br />Bbls</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>Liquids<br />Bbls</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>Natural<br />Gas</b></font><br /><font style="font-family: Times New Roman;" class="_mt" size="1"><b>Mcf</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td></tr>
<tr><td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom" colspan="10" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>(In thousands)</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>2010:</b></font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Proved developed and undeveloped reserves:</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Beginning of year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">11,669</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">14,653</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">419,061</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Revision of previous estimates </font><font style="font-family: Times New Roman;" class="_mt" size="1"><sup style="position: relative; bottom: 0.8ex; vertical-align: baseline;">(1)</sup></font><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">434</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(1,559</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(25,007</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Extensions and discoveries</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">3,473</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">878</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">31,328</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Infill reserves in existing proved fields</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2,152</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">3,482</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">34,128</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Purchases of minerals in place</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1,293</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">212</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1,732</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Production</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(1,521</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(1,549</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(40,756</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Sales</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(6</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">0</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">0</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">End of Year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">17,494</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">16,117</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">420,486</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Proved developed reserves:</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Beginning of year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">9,183</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">11,538</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">338,217</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">End of year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">12,773</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">12,088</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">346,928</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Proved undeveloped reserves:</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Beginning of year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2,486</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">3,115</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">80,844</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">End of year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">4,721</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">4,029</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">73,558</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>2009:</b></font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Proved developed and undeveloped reserves:</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Beginning of year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">9,699</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">10,171</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">450,135</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Revision of previous estimates </font><font style="font-family: Times New Roman;" class="_mt" size="1"><sup style="position: relative; bottom: 0.8ex; vertical-align: baseline;">(1)</sup></font><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">459</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2,793</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(57,393</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Extensions and discoveries</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2,135</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1,996</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">50,480</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Infill reserves in existing proved fields </font><font style="font-family: Times New Roman;" class="_mt" size="1"><sup style="position: relative; bottom: 0.8ex; vertical-align: baseline;">(</sup></font><font style="font-family: Times New Roman;" class="_mt" size="2"> </font><font style="font-family: Times New Roman;" class="_mt" size="1"><sup style="position: relative; bottom: 0.8ex; vertical-align: baseline;">2</sup></font><font style="font-family: Times New Roman;" class="_mt" size="2"> </font><font style="font-family: Times New Roman;" class="_mt" size="1"><sup style="position: relative; bottom: 0.8ex; vertical-align: baseline;">)</sup></font><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">618</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1,174</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">19,872</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Purchases of minerals in place</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">44</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">7</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">30</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Production</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(1,286</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(1,488</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(44,063</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">End of Year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">11,669</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">14,653</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">419,061</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Proved developed reserves:</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Beginning of year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">7,508</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">8,638</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">355,824</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">End of year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">9,183</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">11,538</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">338,217</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Proved undeveloped reserves:</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Beginning of year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2,191</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1,533</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">94,311</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">End of year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2,486</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">3,115</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">80,844</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2"><b>2008:</b></font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Proved developed and undeveloped reserves:</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Beginning of year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">9,676</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">6,149</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">419,616</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Revision of previous estimates </font><font style="font-family: Times New Roman;" class="_mt" size="1"><sup style="position: relative; bottom: 0.8ex; vertical-align: baseline;">(</sup></font><font style="font-family: Times New Roman;" class="_mt" size="2"> </font><font style="font-family: Times New Roman;" class="_mt" size="1"><sup style="position: relative; bottom: 0.8ex; vertical-align: baseline;">3</sup></font><font style="font-family: Times New Roman;" class="_mt" size="2"> </font><font style="font-family: Times New Roman;" class="_mt" size="1"><sup style="position: relative; bottom: 0.8ex; vertical-align: baseline;">)</sup></font><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(1,278</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2,023</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(23,431</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Extensions and discoveries</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1,511</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1,522</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">60,369</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Infill reserves in existing proved fields </font><font style="font-family: Times New Roman;" class="_mt" size="1"><sup style="position: relative; bottom: 0.8ex; vertical-align: baseline;">(</sup></font><font style="font-family: Times New Roman;" class="_mt" size="2"> </font><font style="font-family: Times New Roman;" class="_mt" size="1"><sup style="position: relative; bottom: 0.8ex; vertical-align: baseline;">2</sup></font><font style="font-family: Times New Roman;" class="_mt" size="2"> </font><font style="font-family: Times New Roman;" class="_mt" size="1"><sup style="position: relative; bottom: 0.8ex; vertical-align: baseline;">)</sup></font><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">830</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1,657</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">29,848</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Purchases of minerals in place</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">221</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">208</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">11,206</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Production</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(1,261</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(1,388</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(47,473</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">End of Year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">9,699</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">10,171</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">450,135</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Proved developed reserves:</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Beginning of year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">7,770</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">5,133</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">326,071</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">End of year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">7,508</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">8,638</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">355,824</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Proved undeveloped reserves:</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"> </td>
<td valign="bottom"> </td>
<td valign="bottom"> </td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Beginning of year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1,906</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1,016</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">93,545</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 3em;"><font style="font-family: Times New Roman;" class="_mt" size="2">End of year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2,191</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1,533</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">94,311</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr></table>
<p style="border-bottom: #000000 0.5pt solid; line-height: 8px; margin-top: 0px; width: 10%; margin-bottom: 2px;"> </p>
<table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%">
<tr><td valign="top" width="3%" align="left"><font style="font-family: Times New Roman;" class="_mt" size="2">(1)</font></td>
<td valign="top" align="left"><font style="font-family: Times New Roman;" class="_mt" size="2">Natural gas revisions of previous estimates decreased primarily due to a decline in natural gas prices and/or deleting PUDs that were stale or uneconomical. </font></td></tr></table>
<p style="margin-top: 6px; margin-bottom: 0px; font-size: 1px;"> </p>
<table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%">
<tr><td valign="top" width="3%" align="left"><font style="font-family: Times New Roman;" class="_mt" size="2">(2)</font></td>
<td valign="top" align="left"><font style="font-family: Times New Roman;" class="_mt" size="2">Previously included in 'Extensions, discoveries and other additions'. </font></td></tr></table>
<p style="margin-top: 0px; margin-bottom: 0px; font-size: 6px;"> </p>
<table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%">
<tr><td valign="top" width="3%" align="left"><font style="font-family: Times New Roman;" class="_mt" size="2">(3)</font></td>
<td valign="top" align="left"><font style="font-family: Times New Roman;" class="_mt" size="2">As a result of processing more natural gas liquids out of our natural gas, revisions of previous estimates reflect an increase in NGLs derived from natural gas. </font></td></tr></table>
<p style="margin-top: 12px; text-indent: 4%; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2">Estimates of oil, NGLs and natural gas reserves require extensive judgments of reservoir engineering data. Assigning monetary values to such estimates does not reduce the subjectivity and changing nature of such reserve estimates. Indeed the uncertainties inherent in the disclosure are compounded by applying additional estimates of the rates and timing of production and the costs that will be incurred in developing and producing the reserves. The information set forth in this report is, therefore, subjective and, since judgments are involved, may not be comparable to estimates submitted by other oil and natural gas producers. In addition, since prices and costs do not remain static and no price or cost escalations or de-escalations have been considered, the results are not necessarily indicative of the estimated fair market value of estimated proved reserves, nor of estimated future cash flows. </font></p>
<p style="margin-top: 12px; text-indent: 4%; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2">The standardized measure of discounted future net cash flows (SMOG) was calculated using 12-month average prices and year-end costs and statutory tax rates, adjusted for permanent differences that relate to existing proved oil, NGLs and natural gas reserves. SMOG as of December 31 is as follows: </font></p>
<p style="margin-top: 0px; margin-bottom: 0px; font-size: 12px;"> </p>
<table border="0" cellspacing="0" cellpadding="0" width="92%" align="center">
<tr><td width="60%"> </td>
<td valign="bottom" width="5%"> </td>
<td> </td>
<td> </td>
<td> </td>
<td valign="bottom" width="4%"> </td>
<td> </td>
<td> </td>
<td> </td>
<td valign="bottom" width="4%"> </td>
<td> </td>
<td> </td>
<td> </td></tr>
<tr><td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>2010</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>2009</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>2008</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td></tr>
<tr><td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom" colspan="10" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>(In thousands)</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Future cash flows</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">3,745,046</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2,403,892</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">2,694,217</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Future production costs</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(1,054,630</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(777,725</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(769,325</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Future development costs</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(303,152</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(195,486</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(253,941</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Future income tax expenses</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(799,260</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(433,366</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(510,361</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Future net cash flows</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1,588,004</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">997,315</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1,160,590</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">10% annual discount for estimated timing of cash flows</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(732,918</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(450,980</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(536,116</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Standardized measure of discounted future net cash flows relating to proved oil, NGLs and natural gas reserves</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">855,086</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">546,335</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">624,474</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td></tr></table>
<p style="margin-top: 12px; text-indent: 4%; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2">The principal sources of changes in the standardized measure of discounted future net cash flows were as follows: </font></p>
<p style="margin-top: 0px; margin-bottom: 0px; font-size: 12px;"> </p>
<table border="0" cellspacing="0" cellpadding="0" width="92%" align="center">
<tr><td width="63%"> </td>
<td valign="bottom" width="5%"> </td>
<td> </td>
<td> </td>
<td> </td>
<td valign="bottom" width="4%"> </td>
<td> </td>
<td> </td>
<td> </td>
<td valign="bottom" width="4%"> </td>
<td> </td>
<td> </td>
<td> </td></tr>
<tr><td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>2010</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>2009</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>2008</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td></tr>
<tr><td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom" colspan="10" align="center"><font style="font-family: Times New Roman;" class="_mt" size="1"><b>(In thousands)</b></font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Sales and transfers of oil and natural gas produced, net of production costs</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(301,086</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(277,358</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(443,729</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Net changes in prices and production costs</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">379,097</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(145,839</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(548,683</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Revisions in quantity estimates and changes in production timing</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(67,116</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(54,327</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(34,066</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Extensions, discoveries and improved recovery, less related costs</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">340,771</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">136,695</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">229,928</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Changes in estimated future development costs</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">15,974</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">100,304</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">20,273</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Previously estimated cost incurred during the period</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">45,327</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">16,301</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">55,763</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Purchases of minerals in place</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">42,280</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">1,288</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">20,797</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Sales of minerals in place</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(120</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">0</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">0</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Accretion of discount</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">77,536</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">89,256</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">148,160</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Net change in income taxes</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(200,815</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">39,062</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">223,188</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Other—net</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(23,097</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">16,479</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(37,488</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Net change</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">308,751</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(78,139</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">(365,857</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2">) </font></td></tr>
<tr bgcolor="#cceeff"><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">Beginning of year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">546,335</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">624,474</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">990,331</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td style="border-top: #000000 1px solid;" valign="bottom"> </td>
<td> </td></tr>
<tr><td valign="top">
<p style="text-indent: -1em; margin-left: 1em;"><font style="font-family: Times New Roman;" class="_mt" size="2">End of year</font></p></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">855,086</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">546,335</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td>
<td valign="bottom"><font class="_mt" size="1"> </font></td>
<td valign="bottom"><font style="font-family: Times New Roman;" class="_mt" size="2">$</font></td>
<td valign="bottom" align="right"><font style="font-family: Times New Roman;" class="_mt" size="2">624,474</font></td>
<td valign="bottom" nowrap="nowrap"><font style="font-family: Times New Roman;" class="_mt" size="2"> </font></td></tr>
<tr style="font-size: 1px;"><td valign="bottom"> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td>
<td valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td style="border-top: #000000 3px double;" valign="bottom"> </td>
<td> </td></tr></table>
<p style="margin-top: 12px; margin-bottom: 0px; font-size: 1px;"> </p>
<p style="margin-top: 0px; text-indent: 4%; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2">Certain information concerning the assumptions used in computing SMOG and their inherent limitations are discussed below. We believe this information is essential for a proper understanding and assessment of the data presented. </font></p>
<p style="margin-top: 12px; text-indent: 4%; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2">The assumptions used to compute SMOG do not necessarily reflect our expectations of actual revenues to be derived from those reserves nor their present worth. Assigning monetary values to the reserve quantity estimation process does not reduce the subjective and ever-changing nature of reserve estimates. Additional subjectivity occurs when determining present values because the rate of producing the reserves must be estimated. In addition to difficulty inherent in predicting the future, variations from the expected production rate could result from factors outside of our control, such as unintentional delays in development, environmental concerns or changes in prices or regulatory controls. Also, the reserve valuation assumes that all reserves will be disposed of by production. However, other factors such as the sale of reserves in place could affect the amount of cash eventually realized. </font></p>
<p style="margin-top: 12px; text-indent: 4%; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2">The December 31, 2010, future cash flows were computed by applying the unescalated 12-month average prices of $79.43 per barrel for oil, $49.35 per barrel for NGLs and $4.38 per Mcf for natural gas, adjusted for price differentials, relating to proved reserves and to the year-end quantities of those reserves. Prior to 2009, the price was based on the single-day period-end price. Future price changes are considered only to the extent provided by contractual arrangements in existence at year-end. </font></p>
<p style="margin-top: 12px; text-indent: 4%; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2">Future production and development costs are computed by estimating the expenditures to be incurred in developing and producing the proved oil, NGLs and natural gas reserves at the end of the year, based on continuation of existing economic conditions. </font></p>
<p style="margin-top: 12px; text-indent: 4%; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2">Future income tax expenses are computed by applying the appropriate year-end statutory tax rates to the future pretax net cash flows relating to proved oil, NGLs and natural gas reserves less the tax basis of our properties. The future income tax expenses also give effect to permanent differences and tax credits and allowances relating to our proved oil, NGLs and natural gas reserves. </font></p>
<p style="margin-top: 12px; text-indent: 4%; margin-bottom: 0px;"><font style="font-family: Times New Roman;" class="_mt" size="2">Care should be exercised in the use and interpretation of the above data. As production occurs over the next several years, the results shown may be significantly different as changes in production performance, petroleum prices and costs are likely to occur.</font></p> </div>SUPPLEMENTAL OIL AND GAS DISCLOSURES
(UNAUDITED)
Our oil and gas operations are substantially located in the United States. We do have operations in Canadafalsefalsefalsefalsefalse | Otherus-types:textBlockItemTypestringThis text block may contain all or parts of the required disclosures for oil and gas producing industries in tables or other formats.Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 19
-Paragraph 59A-59Z, 59AA, 59BB, 59CC
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