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<SEC-DOCUMENT>0001104659-06-083548.txt : 20061222
<SEC-HEADER>0001104659-06-083548.hdr.sgml : 20061222
<ACCEPTANCE-DATETIME>20061222123728
ACCESSION NUMBER:		0001104659-06-083548
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20061222
ITEM INFORMATION:		Regulation FD Disclosure
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20061222
DATE AS OF CHANGE:		20061222

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MESA ROYALTY TRUST/TX
		CENTRAL INDEX KEY:			0000313364
		STANDARD INDUSTRIAL CLASSIFICATION:	OIL ROYALTY TRADERS [6792]
		IRS NUMBER:				746284806
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07884
		FILM NUMBER:		061295911

	BUSINESS ADDRESS:	
		STREET 1:		712 MAIN STREET
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77210
		BUSINESS PHONE:		7132165100

	MAIL ADDRESS:	
		STREET 1:		P O BOX 4717
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77210
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>a06-26295_18k.htm
<DESCRIPTION>CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES
<TEXT>
<html>

<head>






</head>

<body lang="EN-US">

<div style="font-family:Times New Roman;">
 <div style="border:none;border-top:double windowtext 6.0pt;padding:0pt 0pt 0pt 0pt;"> <p style="border:none;margin:0pt 0pt .0001pt;padding:0pt;"><a name="scotch"></a></p> </div>

<p style="font-weight:bold;margin:0pt 0pt 12.0pt;text-align:center;"><b><font size="3" face="Times New Roman">&nbsp;</font></b></p>

<p style="font-weight:bold;margin:0pt 0pt .0001pt;page-break-after:avoid;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;">UNITED STATES</font></b></p>

<p style="font-weight:bold;margin:0pt 0pt .0001pt;page-break-after:avoid;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;">SECURITIES AND EXCHANGE COMMISSION</font></b></p>

<p style="font-weight:bold;margin:0pt 0pt 12.0pt;page-break-after:avoid;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;">Washington,
D.C. 20549</font></b></p>

<p style="font-weight:bold;margin:0pt 0pt 12.0pt;page-break-after:avoid;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;">FORM 8-K</font></b></p>

<p style="font-weight:bold;margin:0pt 0pt .0001pt;page-break-after:avoid;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;">CURRENT REPORT</font></b></p>

<p style="font-weight:bold;margin:0pt 0pt 12.0pt;page-break-after:avoid;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;">Pursuant to Section 13 OR 15(d) of the
Securities Exchange Act of 1934</font></b></p>

<p style="margin:0pt 0pt 12.0pt;page-break-after:avoid;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date of Report (Date of
earliest event reported):&nbsp;&nbsp;<b>December
22, 2006</b></font></p>

<p style="font-weight:bold;margin:0pt 0pt .0001pt;page-break-after:avoid;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;">Mesa Royalty Trust</font></b></p>

<p style="margin:0pt 0pt 12.0pt;page-break-after:avoid;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Exact name of registrant
as specified in its charter)</font></p>

<div align="center">

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="31%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:31.74%;">
  <p align="center" style="font-size:10.0pt;margin:0pt 0pt .0001pt;text-align:center;"><!-- SET mrlNoTableShading --><b>Texas</b></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0pt .7pt 0pt .7pt;width:2.38%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="31%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:31.74%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">1-7884</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0pt .7pt 0pt .7pt;width:2.38%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="31%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:31.74%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">76-6284806</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:31.74%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(State or other
  jurisdiction</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0pt .7pt 0pt .7pt;width:2.38%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="31%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:31.74%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Commission</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0pt .7pt 0pt .7pt;width:2.38%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="31%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:31.74%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(IRS Employer</font></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:31.74%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">of incorporation)</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0pt .7pt 0pt .7pt;width:2.38%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="31%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:31.74%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">File Number)</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0pt .7pt 0pt .7pt;width:2.38%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="31%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:31.74%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Identification
  No.)</font></p>
  </td>
 </tr>
</table>

</div>

<p style="line-height:1.0pt;margin:0pt 0pt 12.0pt;page-break-after:avoid;"><font size="1" face="Times New Roman">&nbsp;</font></p>

<div align="center">

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="48%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:48.8%;">
  <p align="center" style="font-size:10.0pt;margin:0pt 0pt .0001pt;text-align:center;"><!-- SET mrlNoTableShading --><b>The Bank of New York Trust Company, N.A., Trustee</b></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0pt .7pt 0pt .7pt;width:2.38%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="48%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:48.8%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="48%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:48.8%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Global
  Corporate Trust</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0pt .7pt 0pt .7pt;width:2.38%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="48%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:48.8%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="48%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:48.8%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">221
  West Sixth Street</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0pt .7pt 0pt .7pt;width:2.38%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="48%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:48.8%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="48%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:48.8%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Austin,
  Texas</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0pt .7pt 0pt .7pt;width:2.38%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="48%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:48.8%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">78701</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="48%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:48.8%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Address of
  principal executive offices)</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0pt .7pt 0pt .7pt;width:2.38%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="48%" valign="top" style="padding:0pt .7pt 0pt .7pt;width:48.8%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Zip Code)</font></p>
  </td>
 </tr>
</table>

</div>

<p style="line-height:1.0pt;margin:0pt 0pt 12.0pt;"><font size="1" face="Times New Roman">&nbsp;</font></p>

<p style="margin:0pt 0pt 12.0pt;page-break-after:avoid;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Registrant&#146;s telephone
number, including area code:&nbsp;&nbsp;<b>(512)
479-2562</b></font></p>

<p style="font-weight:bold;margin:0pt 0pt .0001pt;page-break-after:avoid;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;">NOT APPLICABLE</font></b></p>

<p style="margin:0pt 0pt 12.0pt;page-break-after:avoid;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(JPMorgan Chase Bank,
N.A.)</font></p>

<p style="margin:0pt 0pt 12.0pt;page-break-after:avoid;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Check the
appropriate box below if the Form 8-K filing is intended to simultaneously
satisfy the filing obligation of the registrant under any of the following
provisions:</font></p>

<p style="font-size:10.0pt;margin:0pt 0pt 12.0pt 36.0pt;text-indent:-36.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>Written
communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</p>

<p style="font-size:10.0pt;margin:0pt 0pt 12.0pt 36.0pt;text-indent:-36.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>Soliciting
material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</p>

<p style="font-size:10.0pt;margin:0pt 0pt 12.0pt 36.0pt;text-indent:-36.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>Pre-commencement
communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR
240.14d-2(b))</p>

<p style="font-size:10.0pt;margin:0pt 0pt .0001pt 36.0pt;text-indent:-36.0pt;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>Pre-commencement
communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR
240.13e-4(c))</p>


 <div style="border:none;border-bottom:double windowtext 6.0pt;padding:0pt 0pt 0pt 0pt;"> <p style="border:none;margin:0pt 0pt .0001pt;padding:0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p> </div>
</div><br><hr size="3" width="100%" noshade color="#010101" align="center">

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<br clear="all" style="page-break-before:always;">

<div>
 <p style="margin:0pt 0pt .0001pt;text-align:center;"></p>

<p style="margin:0pt 0pt 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0pt 0pt 12.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item
7.01&#160; Regulation FD Disclosure.</font></b></p>

<p style="margin:0pt 0pt 12.0pt;text-indent:36.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On December 22,
2006,<b> </b>Mesa Royalty Trust issued a
press release announcing Mesa Royalty Trust&#146;s royalty income, income
distribution for the month of December 2006.&#160;
A copy of the press release is filed as Exhibit 99.1 hereto and is
incorporated herein by reference.</font></p>

<p style="margin:0pt 0pt 12.0pt;text-indent:36.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to General Instruction B.2 of Form 8-K and Securities and
Exchange Commission Release No. 33-8176, the press release attached as Exhibit
99.1 is not &#147;filed&#148; for purposes of Section 18 of the Securities Exchange Act
of 1934, as amended, is not subject to the liabilities of that section and is
not deemed incorporated by reference in any filing under the Securities Act of
1933, as amended, but is instead furnished for purposes of that instruction.</font></p>

<p style="margin:0pt 0pt 12.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item
9.01&#160; Financial Statements and Exhibits.</font></b></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;font-family:Times New Roman;width:100.0%;">
 <tr style="page-break-inside:avoid;">
  <td width="11%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:11.88%;">
  <p align="center" style="font-size:10.0pt;margin:0pt 0pt .0001pt;text-align:center;"><!-- SET mrlNoTableShading --><b>(c)</b></p>
  </td>
  <td width="15%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:15.84%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Exhibits.</font></p>
  </td>
  <td width="72%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:72.28%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="11%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:11.88%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="15%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:15.84%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="72%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:72.28%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="11%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:11.88%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="15%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:15.84%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Exhibit 99.1</font></p>
  </td>
  <td width="72%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:72.28%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Mesa Royalty Trust Press Release dated December 22,
  2006.</font></p>
  </td>
 </tr>
</table>

<p align="center" style="margin:0pt 0pt 12.0pt 36.0pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>

<br><hr size="3" width="100%" noshade color="#010101" align="center">

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 <p style="margin:0pt 0pt .0001pt;text-align:center;"></p>


<p align="center" style="margin:0pt 0pt 12.0pt 36.0pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SIGNATURES</font></b></p>

<p style="margin:0pt 0pt 12.0pt;text-indent:36.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the
requirements of the Securities Exchange Act of 1934, the registrant has duly
caused this report to be signed on its behalf by the undersigned hereunto duly
authorized.</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;font-family:Times New Roman;width:100.0%;">
 <tr style="page-break-inside:avoid;">
  <td width="48%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:48.52%;">
  <p style="font-size:10.0pt;margin:0pt 0pt .0001pt;"><!-- SET mrlNoTableShading --></p>
  </td>
  <td width="51%" colspan="2" valign="top" style="padding:0pt .7pt 0pt 0pt;width:51.48%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Mesa Royalty Trust</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="48%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:48.52%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:4.34%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By: </font></p>
  </td>
  <td width="47%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:47.14%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The Bank of New York Trust Company, N.A., as Trustee</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="48%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:48.52%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:4.34%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="47%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:47.14%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="48%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:48.52%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:4.34%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="47%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:47.14%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="48%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:48.52%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date: December 22, 2006</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:4.34%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By: </font></p>
  </td>
  <td width="47%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0pt .7pt 0pt 0pt;width:47.14%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Mike Ulrich</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="48%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:48.52%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:4.34%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="47%" valign="top" style="border:none;padding:0pt .7pt 0pt 0pt;width:47.14%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Mike Ulrich</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="48%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:48.52%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="4%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:4.34%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="47%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:47.14%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Vice President</font></p>
  </td>
 </tr>
</table>

<br><hr size="3" width="100%" noshade color="#010101" align="center">

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<p align="center" style="font-size:10.0pt;margin:5.0pt 0pt 12.0pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">EXHIBIT
INDEX</font></b> </p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;font-family:Times New Roman;width:100.0%;">
 <tr style="page-break-inside:avoid;">
  <td width="8%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0pt .7pt 0pt 0pt;width:8.94%;">
  <p style="font-size:8.0pt;font-weight:bold;line-height:8.0pt;margin:0pt 0pt .0001pt;text-align:center;"><!-- SET mrlNoTableShading -->Exhibit</p>
  </td>
  <td width="3%" valign="bottom" style="padding:0pt .7pt 0pt 0pt;width:3.96%;">
  <p style="font-weight:bold;line-height:8.0pt;margin:0pt 0pt .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></b></p>
  </td>
  <td width="87%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0pt .7pt 0pt 0pt;width:87.1%;">
  <p align="left" style="font-weight:bold;line-height:8.0pt;margin:0pt 0pt .0001pt;text-align:left;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;">Description</font></b></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="8%" valign="top" style="border:none;padding:0pt .7pt 0pt 0pt;width:8.94%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="3%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:3.96%;">
  <p style="margin:0pt 0pt .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="87%" valign="top" style="border:none;padding:0pt .7pt 0pt 0pt;width:87.1%;">
  <p style="margin:0pt 0pt .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="8%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:8.94%;">
  <p align="center" style="margin:0pt 0pt .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">99.1</font></p>
  </td>
  <td width="3%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:3.96%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="87%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:87.1%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Mesa Royalty Trust Press Release dated December 22,
  2006.</font></p>
  </td>
 </tr>
</table>

<p style="margin:0pt 0pt 12.0pt 36.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin-left:0pt;margin-right:0pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

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<p align="right" style="margin:0pt 0pt 12.0pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Exhibit 99.1</font></b></p>

<p style="margin:0pt 0pt 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;letter-spacing:-.15pt;">Mesa-Royalty-Trust</font></p>

<p style="margin:0pt 0pt 12.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;letter-spacing:-.15pt;">Mesa Royalty Trust Announces
Trust Income for December 2006</font></b></p>

<p style="margin:0pt 0pt .0001pt;"><b><font size="4" face="Times New Roman" style="font-size:14.0pt;font-weight:bold;letter-spacing:-.25pt;">MESA ROYALTY TRUST</font></b></p>

<p style="margin:0pt 0pt 12.0pt;"><b><font size="4" face="Times New Roman" style="font-size:14.0pt;font-weight:bold;letter-spacing:-.15pt;">The Bank of New York Trust
Company, N.A., Trustee</font></b></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;font-family:Times New Roman;width:100.0%;">
 <tr style="page-break-inside:avoid;">
  <td width="83%" colspan="2" valign="top" style="padding:0pt .7pt 0pt 0pt;width:83.28%;">
  <p align="right" style="font-size:10.0pt;margin:0pt 0pt .0001pt;text-align:right;"><!-- SET mrlNoTableShading --><b><i><font size="5" style="font-size:20.0pt;font-style:italic;font-weight:bold;">NEWS</font></i></b></p>
  </td>
  <td width="16%" colspan="2" valign="top" style="padding:0pt .7pt 0pt 0pt;width:16.72%;">
  <p style="margin:0pt 0pt .0001pt;"><b><i><font size="5" face="Times New Roman" style="font-size:1.0pt;font-style:italic;font-weight:bold;">&nbsp;</font></i></b></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="78%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0pt .7pt 0pt 0pt;width:78.32%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="5" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="18%" colspan="2" valign="top" style="padding:0pt .7pt 0.375pt 0pt;width:18.84%;">
  <p style="margin:0pt 0pt .0001pt;"><b><i><font size="5" face="Times New Roman" style="font-size:20.0pt;font-style:italic;font-weight:bold;letter-spacing:-.35pt;">RELEASE</font></i></b></p>
  </td>
  <td width="2%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:2.84%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="5" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr height="0">
  <td width="586" style="border:none;"></td>
  <td width="37" style="border:none;"></td>
  <td width="104" style="border:none;"></td>
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 </tr>
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<p style="margin:0pt 0pt 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<h1 style="font-weight:normal;margin:0pt 0pt 12.0pt;page-break-after:avoid;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">FOR IMMEDIATE RELEASE</font></b></h1>

<p align="left" style="font-size:12.0pt;letter-spacing:-.1pt;margin:0pt 0pt 12.0pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">AUSTIN,
TEXAS December 22, 2006 &#151; Mesa Royalty Trust (NYSE symbol-MTR)</font><font face="Times New Roman"> </font><font size="2" face="Times New Roman" style="font-size:10.0pt;">announced
the Trust income distribution for the month of December 2006. Unitholders of
record on December 29, 2006 will receive distributions amounting to $1,239,821
or $0.665286092 per unit payable on January 31, 2007. Royalty income from the
San Juan Basin Properties totaled $46,180. </font><font size="2" face="Times New Roman" style="font-size:10.0pt;">Royalty income for the month of December totaled
$1,235,631.&#160; The Trust received $46,180
and $29,666 from the New Mexico and Colorado portions of the San Juan Basin
Properties, respectively. Royalty income from the Hugoton Properties totaled
$211,101.</font></p>

<p align="left" style="letter-spacing:-.1pt;margin:0pt 0pt 12.0pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The Colorado portion of the San Juan
Basin Properties has recouped all costs related to the Fruitland Coal drilling
program as of December&nbsp;2004. Previously, BP did not remit these revenues
to the Trust.&#160; Since Royalty income for
the Trust is recorded on a cash basis, these revenues have not been reported as
Royalty income. In December 2006, BP remitted to the Trust $948,684 of
previously withheld revenues, which BP has informed the Trustee represent all
of the previously unpaid revenues compared to the approximately $1.1 million
previously estimated by BP as of September 30, 2006. These amounts are included
in the Royalty income for December 2006.</font></p>

<p align="left" style="letter-spacing:-.1pt;margin:0pt 0pt 12.0pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">As previously announced, </font><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pioneer Natural Resources USA, Inc. </font><font size="2" face="Times New Roman" style="font-size:10.0pt;">(&#147;Pioneer
USA&#148;) reached an agreement to settle claims
made in the lawsuit <i>John Steven
Alford and Robert Larrabee, individually and on behalf of a Plaintiff Class v.
Pioneer Natural Resources USA, Inc</i>.&#160;
The plaintiffs in the lawsuit are royalty owners in oil and gas
properties located in the Hugoton field, which are owned by Pioneer USA, a
subsidiary of Pioneer Natural Resources Company (&#147;Pioneer&#148;).&#160; The plaintiffs sued a predecessor company to
Pioneer USA asserting various claims relating to alleged improper deductions in
the calculation of royalties.</font></p>

<p align="left" style="letter-spacing:-.1pt;margin:0pt 0pt 12.0pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Under the terms of the agreement, Pioneer USA has made
and will make cash payments to settle the plaintiffs&#146; claims with respect to
production occurring on and before December 31, 2005.&#160; Pioneer USA also agreed to adjust the manner
in which royalty payments to the class members will be calculated for
production occurring on and after January 1, 2006.</font></p>

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<p align="left" style="letter-spacing:-.1pt;margin:0pt 0pt 12.0pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pioneer&#146;s portion of the cash payment is expected to be
approximately $32.7 million. The cash portion is being paid in two
installments.&#160; Pioneer has advised the
Trustee that the portion of the cash payments net to the Trust&#146;s interest was
approximately </font><font size="2" face="Times New Roman" style="font-size:10.0pt;">$1
million payable on September 30, 2006 and will be approximately $0.9 million
payable on September 30, 2007</font><font size="2" face="Times New Roman" style="font-size:10.0pt;">.&#160; </font><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pioneer USA will initially pay the costs
attributable to the Trust&#146;s interest but will recover these costs through
payments out of future gross proceeds on the Trust&#146;s properties. Accordingly,
royalty income to the Trust will be reduced until all of these payments,
together with any applicable interest as provided under the overriding royalty
conveyance of the Trust&#146;s properties, are recouped by Pioneer USA.</font></p>

<p align="left" style="letter-spacing:-.1pt;margin:0pt 0pt 12.0pt;text-align:left;"><font size="2" face="Times New Roman" style="font-size:10.0pt;letter-spacing:-.15pt;">The extent of future distributions from the properties
in which the Trust has an interest will continue to be dependent on normal
factors associated with oil and gas operations such as oil and gas production
levels, prices and associated cost, accruals for future abandonment costs,
timing and extent of capital expenditures.</font></p>

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  <p style="font-size:10.0pt;margin:0pt 0pt .0001pt;"><!-- SET mrlNoTableShading -->Contact:</p>
  </td>
  <td width="90%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:90.08%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Mesa Royalty Trust</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="9%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:9.92%;">
  <p style="margin:0pt 0pt .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="90%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:90.08%;">
  <p style="margin:0pt 0pt .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">The Bank of New York Trust Company, N.A., as
  Trustee</font></b></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="9%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:9.92%;">
  <p style="margin:0pt 0pt .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="90%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:90.08%;">
  <p style="margin:0pt 0pt .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Mike Ulrich</font></b></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="9%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:9.92%;">
  <p style="margin:0pt 0pt .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="90%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:90.08%;">
  <p style="margin:0pt 0pt .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">1(800) 852-1422</font></b></p>
  </td>
 </tr>
</table>

<p style="line-height:1.0pt;margin:0pt 0pt 12.0pt;"><font size="1" face="Times New Roman">&nbsp;</font></p>

<p style="letter-spacing:-.1pt;margin:0pt 0pt 12.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;letter-spacing:-.15pt;">www.businesswire.com/cnn/mtr.htm</font></b></p>

<p align="center" style="letter-spacing:-.1pt;margin:0pt 0pt 12.0pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;letter-spacing:-.15pt;">221
West 6th Street Austin, TX 78701</font></p>

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