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       &lt;b&gt;&lt;font style="font-family: 'Times New Roman', Times"&gt;Note&amp;#160;15&amp;#160;&amp;#8212;
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       &lt;b&gt;&lt;font style="font-family: 'Times New Roman', Times"&gt;Subsequent
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   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
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   &lt;div align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: #ffffff"&gt;
       &lt;b&gt;&lt;i&gt;&lt;font style="font-family: 'Times New Roman', Times"&gt;Private
       Placement of Series&amp;#160;A Preferred Units&lt;/font&gt;&lt;/i&gt;&lt;/b&gt;
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   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
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       On July&amp;#160;21, 2010, we issued 10,327,022 Series&amp;#160;A
       convertible preferred units (&amp;#8220;Series&amp;#160;A units&amp;#8221;) in
       a private placement to an affiliate of TPG Capital
       (&amp;#8220;TPG&amp;#8221;) for gross proceeds of $300&amp;#160;million. The
       preferred units were priced at $29.05 per unit. Net proceeds
       were approximately $285.3&amp;#160;million. We used
       $180&amp;#160;million of the net proceeds to repay the balance
       outstanding under our Credit Facility and expect to use the
       availability under the facility and the remaining net proceeds
       to fund our Eagle Ford Shale expansion strategy and other growth
       initiatives in Texas and Oklahoma.
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   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
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       The Series&amp;#160;A units are a new class of voting equity
       security that rank senior to all classes or series of equity
       securities with respect to distribution rights and rights upon
       liquidation.
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   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
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       Holders of the Series&amp;#160;A units are entitled to quarterly
       distributions:
   &lt;/div&gt;
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       &lt;td&gt;    &amp;#8226;&amp;#160;
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       of in-kind Series&amp;#160;A units for the first three years
       following the issue date;
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       after the third and before the sixth anniversary of the issue
       date, in cash, in-kind or in a combination thereof, at our
       election;&amp;#160;and
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       &lt;td&gt;    &amp;#8226;&amp;#160;
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       after the sixth anniversary of the issue date, in cash, or
       in-kind only if and to the extent (i)&amp;#160;required because our
       cash (after reserves established by our Board) is not sufficient
       to fund the distribution or (ii)&amp;#160;agreed between us and TPG.
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   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
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       In-kind distributions will equal $0.72625 per unit per quarter
       (or 10% per year of the unit purchase price). Cash distributions
       will equal the greater of $0.72625 per unit per quarter or the
       quarterly
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       distribution paid with respect to common units.
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   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
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       Commencing on the third anniversary of the issue date,
       Series&amp;#160;A units (including Series&amp;#160;A units issued as
       in-kind distributions) will be convertible into common units by
       us or by the Series&amp;#160;A unitholder on a
       &lt;font style="white-space: nowrap"&gt;one-for-one&lt;/font&gt;
       basis, in each case subject to certain conditions and
       limitations.
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   &lt;div style="margin-top: 12pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
   &lt;div align="left" style="margin-left: 2%; margin-right: 0%; font-size: 10pt; font-family: Arial, Helvetica; color: #000000; background: #ffffff"&gt;
       &lt;b&gt;&lt;i&gt;&lt;font style="font-family: 'Times New Roman', Times"&gt;The
       Credit Facility Amendment&lt;/font&gt;&lt;/i&gt;&lt;/b&gt;
   &lt;/div&gt;
   &lt;div style="margin-top: 6pt; font-size: 1pt"&gt;&amp;#160;
   &lt;/div&gt;
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       On July&amp;#160;21, 2010, we amended our Credit Facility agreement
       with various financial institutions to (i)&amp;#160;provide for the
       issuance of the Series&amp;#160;A units, (ii)&amp;#160;increase the
       amount of investments that we and our restricted subsidiaries
       may make in unrestricted subsidiaries and certain other
       entities, (iii)&amp;#160;clarify that the Series&amp;#160;A units do not
       constitute indebtedness or consolidated funded indebtedness and
       (iv)&amp;#160;clarify that the conversion of other equity interests
       into common units does not constitute a restricted payment.
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      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
 -Number 5
 -Paragraph 11

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