<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<xs:schema xmlns:us-types="http://xbrl.us/us-types/2007-12-31"
           xmlns:xbrli="http://www.xbrl.org/2003/instance"
           xmlns:link="http://www.xbrl.org/2003/linkbase"
           xmlns:xlink="http://www.w3.org/1999/xlink"
           xmlns:xs="http://www.w3.org/2001/XMLSchema"
           elementFormDefault="qualified"
           targetNamespace="http://xbrl.us/us-types/2007-12-31">
   <xs:import namespace="http://www.xbrl.org/2003/instance"
              schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
   <xs:import namespace="http://xbrl.us/us-roles/2007-12-31"
              schemaLocation="ugtr-20071231.xsd"/>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema"
                name="BusinessAcquisition-PurchasePriceAllocationStatusItemType">
      <simpleContent>
         <restriction base="xbrli:stringItemType">
            <enumeration value="Preliminary"/>
            <enumeration value="Final"/>
         </restriction>
      </simpleContent>
  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema"
                name="Derivative-HedgeDesignationItemType">
      <simpleContent>
         <restriction base="xbrli:stringItemType">
            <enumeration value="Cash Flow Hedge"/>
            <enumeration value="Fair Value Hedge"/>
            <enumeration value="Net Investment Hedge"/>
            <enumeration value="No Hedge Designation"/>
         </restriction>
      </simpleContent>
  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema" name="Derivative-SwapTypeItemType">
      <simpleContent>
         <restriction base="xbrli:stringItemType">
            <enumeration value="Fixed"/>
            <enumeration value="Variable"/>
         </restriction>
      </simpleContent>
  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema"
                name="Derivative-TypeInterestRatePaidOnSwapItemType">
      <simpleContent>
         <restriction base="xbrli:stringItemType">
            <enumeration value="Fixed"/>
            <enumeration value="Variable"/>
         </restriction>
      </simpleContent>
  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema"
                name="Derivative-UnderlyingRiskItemType">
      <simpleContent>
         <restriction base="xbrli:stringItemType">
            <enumeration value="Interest Rate Risk"/>
            <enumeration value="Credit Risk"/>
            <enumeration value="Foreign Exchange Rate Risk"/>
            <enumeration value="Overall Price Risk"/>
         </restriction>
      </simpleContent>
  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema"
                name="FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresInterestRateTypeItemType">
      <simpleContent>
         <restriction base="xbrli:stringItemType">
            <enumeration value="Floating"/>
            <enumeration value="Fixed"/>
         </restriction>
      </simpleContent>
  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema"
                name="FederalHomeLoanBankAdvancesStateFHLBBank-InterestRateTypeItemType">
      <simpleContent>
         <restriction base="xbrli:stringItemType">
            <enumeration value="Floating"/>
            <enumeration value="Fixed"/>
         </restriction>
      </simpleContent>
  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema"
                name="MalpracticeInsurance-OccurrenceOrClaims-madeItemType">
      <simpleContent>
         <restriction base="xbrli:stringItemType">
            <enumeration value="Occurrence"/>
            <enumeration value="Claims-made"/>
         </restriction>
      </simpleContent>
  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema"
                name="MalpracticeInsurance-OwnershipInCaptiveInsurerItemType">
      <simpleContent>
         <restriction base="xbrli:stringItemType">
            <enumeration value="Yes"/>
            <enumeration value="No"/>
         </restriction>
      </simpleContent>
  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema"
                name="MalpracticeInsurance-RetrospectivelyRatedItemType">
      <simpleContent>
         <restriction base="xbrli:stringItemType">
            <enumeration value="Yes"/>
            <enumeration value="No"/>
         </restriction>
      </simpleContent>
  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema"
                name="MalpracticeInsurance-SelfInsuredItemType">
      <simpleContent>
         <restriction base="xbrli:stringItemType">
            <enumeration value="Yes"/>
            <enumeration value="No"/>
         </restriction>
      </simpleContent>
  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema"
                name="MalpracticeInsurance-ThirdPartyCoverageItemType">
      <simpleContent>
         <restriction base="xbrli:stringItemType">
            <enumeration value="Yes"/>
            <enumeration value="No"/>
         </restriction>
      </simpleContent>
  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema"
                name="OilGasAccountingPolicyFullCostOrSuccessfulEffortsItemType">
      <simpleContent>
         <restriction base="xbrli:stringItemType">
            <enumeration value="Full Cost"/>
            <enumeration value="Successful Efforts"/>
         </restriction>
      </simpleContent>
  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema"
                name="OilGasAccountingPolicySalesMethodOrEntitlementsMethodItemType">
      <simpleContent>
         <restriction base="xbrli:stringItemType">
            <enumeration value="Sales Method"/>
            <enumeration value="Entitlements Method"/>
         </restriction>
      </simpleContent>
  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema" name="percentItemType">

		    <simpleContent>

			      <restriction base="xbrli:pureItemType"/>

		    </simpleContent>

	  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema" name="textBlockItemType">

		    <simpleContent>

			      <restriction base="xbrli:stringItemType"/>

		    </simpleContent>

	  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema" name="domainItemType">

		    <simpleContent>

			      <restriction base="xbrli:stringItemType">

				        <length fixed="true" value="0"/>

			      </restriction>

		    </simpleContent>

	  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema" name="perShareItemType">

		    <simpleContent>

			      <restriction base="xbrli:monetaryItemType"/>

		    </simpleContent>

	  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema" name="dateStringItemType">

		    <simpleContent>

			      <restriction base="xbrli:normalizedStringItemType"/>

		    </simpleContent>

	  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema" name="durationStringItemType">

		    <simpleContent>

			      <restriction base="xbrli:normalizedStringItemType"/>

		    </simpleContent>

	  </complexType>
   <complexType xmlns="http://www.w3.org/2001/XMLSchema" name="periodStringItemType">

		    <simpleContent>

			      <restriction base="xbrli:normalizedStringItemType"/>

		    </simpleContent>

	  </complexType>
</xs:schema>
