2.4.0.81150 - Disclosure - Concentrations of Credit Risktruefalsefalse1false falsefalseD2013http://www.sec.gov/CIK0001006655duration2012-07-01T00:00:002013-06-30T00:00:001true 1us-gaap_RisksAndUncertaintiesAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Concentrations of Credit Risk2false 2us-gaap_ConcentrationRiskDisclosureTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> Note 15—Concentrations of Credit Risk         Major Customers.    We market all of our oil and natural gas production from the properties we operate. The majority of our operated gas, oil and condensate production is sold to a variety of purchasers under short-term (less than 12 months) contracts at market-based prices. The following table identifies customers from whom we derived 10 percent or more our net oil and natural gas revenues during the years ended June 30, 2013, 2012, and 2011. Based on the current demand for oil and natural gas and availability of other customers, we do not believe the loss of any of these customers would have a significant effect on our operations or financial condition. <div style="POSITION: relative; PADDING-BOTTOM: 0pt; PADDING-LEFT: 0pt; WIDTH: 70%; PADDING-RIGHT: 0pt; MARGIN-LEFT: 15%; PADDING-TOP: 0pt;">   <div align="center"> <table border="0" cellspacing="0" cellpadding="0" width="100%" style="text-align:left;"> <tr style="padding:0;"> <td style="FONT-FAMILY: times;" align="left"></td> <td style="FONT-FAMILY: times;" width="20"></td> <td style="FONT-FAMILY: times;" width="7" align="right"></td> <td style="FONT-FAMILY: times;" width="25"></td> <td style="FONT-FAMILY: times;" width="20"></td> <td style="FONT-FAMILY: times;" width="7" align="right"></td> <td style="FONT-FAMILY: times;" width="25"></td> <td style="FONT-FAMILY: times;" width="20"></td> <td style="FONT-FAMILY: times;" width="7" align="right"></td> <td style="FONT-FAMILY: times;" width="25"></td> <td style="FONT-FAMILY: times;" width="12"></td></tr> <tr style="padding:0;" valign="bottom"> <th style="FONT-FAMILY: times;" align="left">  </th> <th style="FONT-FAMILY: times;"> </th> <th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times;" colspan="8" align="center">Year Ended June 30,</th> <th style="FONT-FAMILY: times;"> </th></tr> <tr style="padding:0;" valign="bottom"> <th style="FONT-FAMILY: times;" nowrap="nowrap" align="left"> <div style="BORDER-BOTTOM: #000000 1pt solid; WIDTH: 34pt; MARGIN-BOTTOM: 0pt;">Customer </div></th> <th style="FONT-FAMILY: times;"> </th> <th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times;" colspan="2" align="center">2013</th> <th style="FONT-FAMILY: times;"> </th> <th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times;" colspan="2" align="center">2012</th> <th style="FONT-FAMILY: times;"> </th> <th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times;" colspan="2" align="center">2011</th> <th style="FONT-FAMILY: times;"> </th></tr> <tr style="padding:0;" valign="bottom" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times;"> Plains Marketing L.P. (includes Delhi production)</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">90</td> <td style="FONT-FAMILY: times;">%</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">84</td> <td style="FONT-FAMILY: times;">%</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">60</td> <td style="FONT-FAMILY: times;">%</td></tr> <tr style="padding:0;" valign="bottom" bgcolor="white"> <td style="FONT-FAMILY: times;"> Enterprise Crude Oil LLC</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">4</td> <td style="FONT-FAMILY: times;">%</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">7</td> <td style="FONT-FAMILY: times;">%</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">15</td> <td style="FONT-FAMILY: times;">%</td></tr> <tr style="padding:0;" valign="bottom" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times;"> Flint Hills</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">2</td> <td style="FONT-FAMILY: times;">%</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">1</td> <td style="FONT-FAMILY: times;">%</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">—</td> <td style="FONT-FAMILY: times;">%</td></tr> <tr style="padding:0;" valign="bottom" bgcolor="white"> <td style="FONT-FAMILY: times;"> DCP Midstream, LP</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">1</td> <td style="FONT-FAMILY: times;">%</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">2</td> <td style="FONT-FAMILY: times;">%</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">6</td> <td style="FONT-FAMILY: times;">%</td></tr> <tr style="padding:0;" valign="bottom" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times;"> Kinder Morgan (fka Copano Field Services/Upper Gulf Coast, L.P. )</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">1</td> <td style="FONT-FAMILY: times;">%</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">3</td> <td style="FONT-FAMILY: times;">%</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">7</td> <td style="FONT-FAMILY: times;">%</td></tr> <tr style="padding:0;" valign="bottom" bgcolor="white"> <td style="FONT-FAMILY: times;"> Enervest, LLC</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">1</td> <td style="FONT-FAMILY: times;">%</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">—</td> <td style="FONT-FAMILY: times;">%</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">—</td> <td style="FONT-FAMILY: times;">%</td></tr> <tr style="padding:0;" valign="bottom" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times;"> Orion Exploration Partners, LLC</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">1</td> <td style="FONT-FAMILY: times;">%</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">—</td> <td style="FONT-FAMILY: times;">%</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">—</td> <td style="FONT-FAMILY: times;">%</td></tr> <tr style="padding:0;" valign="bottom" bgcolor="white"> <td style="FONT-FAMILY: times;"> ETC Texas Pipeline, LTD. </td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">—</td> <td style="FONT-FAMILY: times;">%</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">3</td> <td style="FONT-FAMILY: times;">%</td> <td style="FONT-FAMILY: times;"> </td> <td style="FONT-FAMILY: times;" align="right">12</td> <td style="FONT-FAMILY: times;">%</td></tr></table></div> </div>         Accounts Receivable.    Substantially all of our accounts receivable result from uncollateralized oil and natural gas sales to third parties in the oil and natural gas industry. This concentration of customers may impact our overall credit risk in that these entities may be similarly affected by changes in economic and other conditions.         Cash and Cash Equivalents and Certificates of Deposit.    We are subject to concentrations of credit risk with respect to our cash and cash equivalents, which we attempt to minimize by maintaining our cash and cash equivalents in high quality money market funds. At times cash balances may exceed limits federally insured by the Federal Deposit Insurance Corporation ("FDIC"). Our certificates of deposit are below or at the maximum federally insured limit set by the FDIC. </div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 107 -Paragraph 15A -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6327-108592 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 94-6 -Paragraph 21, 22, 24 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13531-108611 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6442-108592 false0Concentrations of Credit RiskfalseConcentrations of Credit RiskUnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.evolutionpetroleum.com/role/DisclosureConcentrationsOfCreditRisk12