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       &lt;b&gt;&lt;font style="font-family: 'Times New Roman', Times"&gt;NOTE&amp;#160;10.&amp;#160;&lt;/font&gt;&lt;/b&gt;
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       During the six months ended June&amp;#160;30, 2010, we awarded
       certain employees 749,805&amp;#160;shares of restricted stock
       (&amp;#8220;RSAs&amp;#8221;). The RSAs will be expensed over the requisite
       service period, subject to an assumed 10% forfeiture rate. The
       terms of the RSAs include vesting provisions based solely on
       continued service. If the service criteria are satisfied, the
       awards vest during March of 2011, 2012 and 2013.
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       On May&amp;#160;6, 2010, in accordance with our existing program for
       annual director compensation, we awarded 36,000&amp;#160;shares of
       restricted stock under the Directors Plan. We determined that
       the service vesting condition of these RSAs to be
       &lt;font style="white-space: nowrap"&gt;non-substantive&lt;/font&gt;
       and, in accordance with accounting principles for stock
       compensation, recorded the entire fair value of the award as
       compensation expense on the grant date.
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       During the six months ended June&amp;#160;30, 2010, we adopted a
       Growth Equity Plan, which is to be used for awards pursuant to
       our Equity Award Plan for Employees and Officers. The Growth
       Equity Plan provides for the award of restricted stock units
       (&amp;#8220;RSUs&amp;#8221;) to certain employees in connection with
       specified growth-based acquisitions that have been completed or
       development projects that have commenced. We awarded certain
       employees 1,085,040&amp;#160;shares of restricted stock units under
       the Growth Equity Plan.
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       The Growth Equity Plan provides that as of the award date of the
       RSUs, the Compensation Committee shall determine the net present
       value of cash flows for the applicable acquisitions or
       development projects (&amp;#8220;Projected NPV&amp;#8221;). Vesting of
       RSUs will not occur until at least three years have passed
       following an acquisition and upon the later of three years from
       the grant date or one year following the commencement of
       commercial operations for development projects. Upon the vesting
       date, the Compensation Committee will re-calculate the net
       present values of the cash flows (&amp;#8220;Bring Down NPV&amp;#8221;).
       If the ratio of the Bring Down NPV to the Projected NPV is
       greater than 95% all of the RSUs related to the particular
       project will vest. If the ratio is less than 95%, the number of
       RSUs originally issued will be proportionately reduced.
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       Compensation expense related to our stock-based awards totaled
       $5.9&amp;#160;million and $9.4&amp;#160;million during the three and six
       months ended June&amp;#160;30, 2010, respectively, and
       $3.8&amp;#160;million and $7.7&amp;#160;million during the three and six
       months ended June&amp;#160;30, 2009, respectively. Compensation
       expense for the three months ended June&amp;#160;30, 2010 includes
       additional expense of
   $1.3&amp;#160;million resulting from the reduction of the exercise
       price of outstanding options as discussed below under Special
       Cash Dividend.
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       As of June&amp;#160;30, 2010, we had approximately
       $15.9&amp;#160;million, $10.5&amp;#160;million and $2.3&amp;#160;million of
       unrecognized compensation expense related to our unvested RSAs,
       RSUs, and unvested stock options, respectively. We expect this
       compensation expense to be recognized over a weighted average
       period of approximately 2&amp;#160;years for our unvested RSAs,
       approximately 4&amp;#160;years for our unvested RSUs and
       approximately 2&amp;#160;years for our unvested stock options.
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       The special cash dividend described in Note&amp;#160;6. Changes in
       Capitalization was deemed an equity restructuring in accordance
       with accounting principles for stock compensation. The impact of
       the special cash dividend on the various share-based awards is
       as follows:
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       &lt;td&gt;    &amp;#8226;&amp;#160;
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       We reduced the exercise price of options granted under the 2004
       plan by $1.50 per share. We recorded additional expense of
       $1.3&amp;#160;million during the three months ended June&amp;#160;30,
       2010 and expect to record $0.2&amp;#160;million over the remaining
       vesting period.
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       &lt;td&gt;    &amp;#8226;&amp;#160;
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       As contractually required by the RSA agreements, holders of
       unvested shares of RSAs will receive the dividend in the form of
       additional RSAs with the same vesting conditions as the
       underlying shares of RSAs to which they relate.
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       As contractually required by the RSU agreements, dividends on
       the RSUs will be paid in cash and put into escrow, and will be
       subject to the same vesting criteria as the underlying shares of
       RSUs to which they relate.
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      <ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Statement of Financial Accounting Standard (FAS)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
 -Publisher AICPA
 -Name Statement of Position (SOP)
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 -Paragraph 53

Reference 3: http://www.xbrl.org/2003/role/presentationRef
 -Publisher SEC
 -Name Staff Accounting Bulletin (SAB)
 -Number Topic 14

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