2.2.0.7 false Asset retirement obligations 0205 - Disclosure - Asset retirement obligations true false false false 1 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ 2 Asset retirement obligations [Abstract] 0 us-gaap_AssetRetirementObligationAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 3 Asset retirement obligations 1 us-gaap_AssetRetirementObligationDisclosureTextBlock us-gaap true na duration No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0   <div style="font-family: 'Times New Roman',Times,serif"> <div align="left" style="font-size: 10pt; margin-top: 12pt"><b>Note E. </b><b><i>Asset retirement obligations</i></b> </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">     The Company’s asset retirement obligations represent the estimated present value of the estimated cash flows the Company will incur to plug, abandon and remediate its producing properties at the end of their productive lives, in accordance with applicable state laws. The Company does not provide for a market risk premium associated with asset retirement obligations because a reliable estimate cannot be determined. The Company has no assets that are legally restricted for purposes of settling asset retirement obligations. </div>   </div>  <div style="font-family: 'Times New Roman',Times,serif"> <div align="center" style="font-size: 10pt; margin-top: 0pt"> <b> </b> </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">     The following table summarizes the Company’s asset retirement obligation transactions recorded during the three and six months ended June 30, 2010 and 2009: </div> <div align="center"> <table style="font-size: 10pt; text-align: left" cellspacing="0" border="0" cellpadding="0" width="100%">  <tr valign="bottom"> <td width="52%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> <td width="5%"> </td> <td width="1%"> </td> </tr> <tr style="font-size: 8pt" valign="bottom"> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="6"><b>Three Months Ended</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="6"><b>Six Months Ended</b></td> <td> </td> </tr> <tr style="font-size: 8pt" valign="bottom"> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="6" style="border-bottom: 1px solid #000000"><b>June 30,</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="6" style="border-bottom: 1px solid #000000"><b>June 30,</b></td> <td> </td> </tr> <tr style="font-size: 8pt" valign="bottom"> <td nowrap="nowrap" align="left"><b>(in thousands)</b></td> <td> </td> <td nowrap="nowrap" align="center" colspan="2"><b>2010</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="2"><b>2009</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="2"><b>2010</b></td> <td> </td> <td> </td> <td nowrap="nowrap" align="center" colspan="2"><b>2009</b></td> <td> </td> </tr>   <tr style="font-size: 1px"> <td colspan="17" align="left" style="border-top: 1px solid #000000"> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Asset retirement obligations, beginning of period </div></td> <td> </td> <td align="left">$</td> <td align="right">20,837</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">18,254</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">22,754</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">16,809</td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:30px; text-indent:-15px">Liabilities incurred from new wells </div></td> <td> </td> <td> </td> <td align="right">665</td> <td> </td> <td> </td> <td> </td> <td align="right">102</td> <td> </td> <td> </td> <td> </td> <td align="right">1,111</td> <td> </td> <td> </td> <td> </td> <td align="right">270</td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:30px; text-indent:-15px">Accretion expense </div></td> <td> </td> <td> </td> <td align="right">372</td> <td> </td> <td> </td> <td> </td> <td align="right">301</td> <td> </td> <td> </td> <td> </td> <td align="right">772</td> <td> </td> <td> </td> <td> </td> <td align="right">579</td> <td> </td> </tr> <tr valign="bottom"> <td> <div style="margin-left:30px; text-indent:-15px">Disposition of wells </div></td> <td> </td> <td> </td> <td align="right">—</td> <td> </td> <td> </td> <td> </td> <td align="right">—</td> <td> </td> <td> </td> <td> </td> <td align="right">—</td> <td> </td> <td> </td> <td nowrap="nowrap" align="left"> </td> <td align="right">(142</td> <td nowrap="nowrap">)</td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:30px; text-indent:-15px">Liabilities settled upon plugging and abandoning wells </div></td> <td> </td> <td nowrap="nowrap" align="left"> </td> <td align="right">(112</td> <td nowrap="nowrap">)</td> <td> </td> <td nowrap="nowrap" align="left"> </td> <td align="right">(343</td> <td nowrap="nowrap">)</td> <td> </td> <td nowrap="nowrap" align="left"> </td> <td align="right">(297</td> <td nowrap="nowrap">)</td> <td> </td> <td nowrap="nowrap" align="left"> </td> <td align="right">(353</td> <td nowrap="nowrap">)</td> </tr> <tr valign="bottom"> <td> <div style="margin-left:30px; text-indent:-15px">Revision of estimates </div></td> <td> </td> <td> </td> <td align="right">295</td> <td> </td> <td> </td> <td nowrap="nowrap" align="left"> </td> <td align="right">(3,928</td> <td nowrap="nowrap">)</td> <td> </td> <td nowrap="nowrap" align="left"> </td> <td align="right">(2,283</td> <td nowrap="nowrap">)</td> <td> </td> <td nowrap="nowrap" align="left"> </td> <td align="right">(2,777</td> <td nowrap="nowrap">)</td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 1px solid #000000"> </td> <td> </td> </tr> <tr valign="bottom" style="background: #cceeff"> <td> <div style="margin-left:15px; text-indent:-15px">Asset retirement obligations, end of period </div></td> <td> </td> <td align="left">$</td> <td align="right">22,057</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">14,386</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">22,057</td> <td> </td> <td> </td> <td align="left">$</td> <td align="right">14,386</td> <td> </td> </tr> <tr style="font-size: 1px"> <td> <div style="margin-left:15px; text-indent:-15px">  </div></td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> <td> </td> <td nowrap="nowrap" colspan="2" align="right" style="border-top: 3px double #000000"> </td> <td> </td> </tr>  </table> </div> </div>  <!-- Begin Block Tagged Note false false false us-types:textBlockItemType textblock Description of the asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. This element may be used for all the disclosures related to asset retirement obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 143 -Paragraph 22 false 1 2 false UnKnown UnKnown UnKnown false true