2.2.0.25falsefalse10601 - Disclosure - LONG-TERM DEBT AND OTHER LONG-TERM LIABILITIEStruefalsefalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) USD ($) / shares $Duration_1_1_2010_To_12_31_2010http://www.sec.gov/CIK0000798949duration2010-01-01T00:00:002010-12-31T00:00:00Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit13Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0unt_LongTermDebtAndOtherLongTermLiabilitiesAbstractuntfalsenadurationLong-Term Debt And Other Long-Term Liabilities (Abstract)falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringLong-Term Debt And Other Long-Term Liabilities (Abstract)falsefalseLONG-TERM DEBT AND OTHER LONG-TERM LIABILITIES3false0us-gaap_LongTermDebtTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> Note 6. Long-Term Debt and Other Long-Term Liabilities Long-Term Debt Long-term debt consisted of the following as of December 31:   <table border="0" cellspacing="0" cellpadding="0" width="100%" align="center"> <tr><td width="82%"> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td> <td valign="bottom" width="3%"> </td> <td> </td> <td> </td> <td> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2010</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2009</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="6" align="center">(In thousands)</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Revolving credit facility, with interest, including the effect of hedging, at December 31, 2010 and 2009 of 3.5% and 4.3%, respectively</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">163,000</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">30,000</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Less current portion</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">0</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">0</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr style="font-size: 1px;"><td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-top: #000000 1px solid;" valign="bottom"> </td> <td style="border-top: #000000 1px solid;" valign="bottom"> </td> <td> </td> <td valign="bottom">  </td> <td style="border-top: #000000 1px solid;" valign="bottom"> </td> <td style="border-top: #000000 1px solid;" valign="bottom"> </td> <td> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Total long-term debt</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">163,000</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">30,000</td> <td valign="bottom" nowrap="nowrap">  </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></tr></table> Our Credit Facility has a maximum credit amount of $400.0 million and matures on May 24, 2012. The lenders' commitment under the Credit Facility is $325.0 million. Our borrowings are limited to the commitment amount that we elect. As of September 30, 2010, the commitment amount was $325.0 million. We are charged a commitment fee ranging from 0.375 to 0.50 of 1% on the amount available but not borrowed. The rate varies based on the amount borrowed as a percentage of the amount of the total borrowing base. To date we have paid $1.2 million in origination, agency and syndication fees under the Credit Facility. We are amortizing these fees over the life of the agreement. The lenders' aggregate commitment is limited to the lesser of the amount of the borrowing base or $400.0 million. The amount of the borrowing base, which is subject to redetermination on April 1 and October 1 of each year, is based primarily on a percentage of the discounted future value of our oil and natural gas reserves and, to a lesser extent, the loan value the lenders reasonably attribute to the cash flow (as defined in the Credit Facility) of our mid-stream segment. The October 1, 2010 redetermination maintained the borrowing base at $500.0 million. We or the lenders may request a onetime special redetermination of the amount of the borrowing base between each scheduled redetermination. In addition, we may request a redetermination following the completion of an acquisition that meets the requirements set forth in the Credit Facility. At our election, any part of the outstanding debt under the Credit Facility may be fixed at a London Interbank Offered Rate (LIBOR) for a 30, 60, 90 or 180 day period. During any LIBOR funding period, the outstanding principal balance of the promissory note to which the LIBOR option applies may be repaid after three days prior notice to the administrative agent and on payment of any applicable funding indemnification amounts. LIBOR interest is computed as the sum of the LIBOR base for the applicable term plus 1.75% to 2.50% depending on the level of debt as a percentage of the borrowing base and is payable at the end of each term, or every 90 days, whichever is less. Borrowings not under LIBOR bear interest at the BOK Financial Corporation (BOKF) National Prime Rate, which cannot be less than LIBOR plus 1.00%, and is payable at the end of each month and the principal borrowed may be paid at any time, in part or in whole, without a premium or penalty. At December 31, 2010, $160.0 million of our $163.0 million in outstanding borrowings were subject to LIBOR. The Credit Facility prohibits:   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr><td width="5%"> </td> <td valign="top" width="2%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> the payment of dividends (other than stock dividends) during any fiscal year in excess of 25% of our consolidated net income for the preceding fiscal year; </td></tr></table>   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr><td width="5%"> </td> <td valign="top" width="2%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> the incurrence of additional debt with certain limited exceptions; and </td></tr></table>   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr><td width="5%"> </td> <td valign="top" width="2%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> the creation or existence of mortgages or liens, other than those in the ordinary course of business, on any of our properties, except in favor of our lenders. </td></tr></table> The Credit Facility also requires that we have at the end of each quarter:   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr><td width="5%"> </td> <td valign="top" width="2%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> consolidated net worth of at least $900 million; </td></tr></table>   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr><td width="5%"> </td> <td valign="top" width="2%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> a current ratio (as defined in the Credit Facility) of not less than 1 to 1; and </td></tr></table>   <table style="border-collapse: collapse;" border="0" cellspacing="0" cellpadding="0" width="100%"> <tr><td width="5%"> </td> <td valign="top" width="2%" align="left">•</td> <td valign="top" width="1%"> </td> <td valign="top" align="left"> a leverage ratio of long-term debt to consolidated EBITDA (as defined in the Credit Facility) for the most recently ended rolling four fiscal quarters of no greater than 3.50 to 1.0. </td></tr></table> As of December 31 2010, we were in compliance with our Credit Facility's covenants. Based on the borrowing rates currently available to us for debt with similar terms and maturities and consideration of our non-performance risk, long-term debt at December 31, 2010 approximates its fair value. At December 31, 2010, the carrying values on the consolidated balance sheets for cash and cash equivalents, accounts receivable, accounts payable, other current assets and current liabilities approximate their fair value because of their short term nature. Other Long-Term Liabilities Other long-term liabilities consisted of the following as of December 31:   <table border="0" cellspacing="0" cellpadding="0" width="92%" align="center"> <tr><td width="80%"> </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"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2010</td> <td valign="bottom"> </td> <td valign="bottom">  </td> <td style="border-bottom: #000000 1px solid;" valign="bottom" colspan="2" align="center">2009</td> <td valign="bottom"> </td></tr> <tr><td valign="bottom"> </td> <td valign="bottom">  </td> <td valign="bottom" colspan="6" align="center">(In thousands)</td> <td valign="bottom"> </td></tr> <tr bgcolor="#cceeff"><td valign="top"> ARO liability</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">69,265</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">56,404</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Workers' compensation</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">17,566</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">22,974</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Separation benefit plans</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">5,690</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">4,681</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr><td valign="top"> Gas balancing liability</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">3,263</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">3,263</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Deferred compensation plan</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2,368</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">2,004</td> <td valign="bottom" nowrap="nowrap">  </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></tr> <tr><td valign="top"> </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">98,152</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">89,326</td> <td valign="bottom" nowrap="nowrap">  </td></tr> <tr bgcolor="#cceeff"><td valign="top"> Less current portion</td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">10,122</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom"> </td> <td valign="bottom" align="right">9,342</td> <td valign="bottom" nowrap="nowrap">  </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></tr> <tr><td valign="top"> Total other long-term liabilities</td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">88,030</td> <td valign="bottom" nowrap="nowrap">  </td> <td valign="bottom">  </td> <td valign="bottom">$</td> <td valign="bottom" align="right">79,984</td> <td valign="bottom" nowrap="nowrap">  </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></tr></table> Estimated annual principle payments under the terms of debt and other long-term liabilities from 2011 through 2015 are $10.1 million, $165.9 million, $14.0 million, $2.5 million and $2.7 million, respectively. </div>Note 6. Long-Term Debt and Other Long-Term Liabilities Long-Term Debt Long-term debt consisted of the following as of December 31:   falsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringThis element may be used as a single block of text to encapsulate the entire disclosure for long-term borrowings including data and tables.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 falsefalseLONG-TERM DEBT AND OTHER LONG-TERM LIABILITIES12LONG-TERM DEBT AND OTHER LONG-TERM LIABILITIESUnKnownUnKnownUnKnownUnKnownfalsetrue