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<SEC-DOCUMENT>0000950134-05-006887.txt : 20050406
<SEC-HEADER>0000950134-05-006887.hdr.sgml : 20050406
<ACCEPTANCE-DATETIME>20050405173828
ACCESSION NUMBER:		0000950134-05-006887
CONFORMED SUBMISSION TYPE:	10-K/A
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20041231
FILED AS OF DATE:		20050406
DATE AS OF CHANGE:		20050405

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PERMIAN BASIN ROYALTY TRUST
		CENTRAL INDEX KEY:			0000319654
		STANDARD INDUSTRIAL CLASSIFICATION:	OIL ROYALTY TRADERS [6792]
		IRS NUMBER:				756280532
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-K/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08033
		FILM NUMBER:		05735256

	BUSINESS ADDRESS:	
		STREET 1:		BANK OF AMERICA N A TRUST DEPARTMENT
		STREET 2:		P O BOX 1317 NK OF TEXAS NA TRUST DEPT
		CITY:			FT WORTH
		STATE:			TX
		ZIP:			76102
		BUSINESS PHONE:		8173906905

	MAIL ADDRESS:	
		STREET 1:		1300 SUMMIT AVENUE SUITE 300
		CITY:			FORTH WORTH
		STATE:			TX
		ZIP:			76102
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-K/A
<SEQUENCE>1
<FILENAME>d24083a1e10vkza.htm
<DESCRIPTION>AMENDMENT TO FORM 10-K
<TEXT>
<HTML>
<HEAD>
<TITLE>e10vkza</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
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<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">



<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>




<P align="center" style="font-size: 14pt"><B>UNITED STATES SECURITIES AND EXCHANGE COMMISSION</B>

<DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549</B>
</DIV>


<P align="center" style="font-size: 10pt"><HR size="1" noshade width="26%" align="center" color="#000000">


<DIV align="center" style="font-size: 18pt"><B>FORM 10-K/A</B></DIV>


<P align="center" style="font-size: 10pt"><B>Amendment No.&nbsp;1</B>



<P align="left" style="font-size: 10pt"><B>(Mark One)</B>


<DIV align="center">
<TABLE style="font-size: 12pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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    <TD width="3%">&nbsp;</TD>
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    <TD width="94%">&nbsp;</TD>
</TR>
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<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><FONT face="Wingdings">&#254;</FONT>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><B>ANNUAL REPORT PURSUANT TO SECTION
13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934</B></TD>
</TR>

<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><B>For the fiscal year ended December&nbsp;31, 2004</B>



<P align="center" style="font-size: 10pt"><B>OR</B>


<DIV align="center">
<TABLE style="font-size: 12pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="3%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="94%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><FONT face="Wingdings">&#111;</FONT>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"><B>TRANSITION REPORT PURSUANT TO
SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934</B></TD>
</TR>

<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><HR size="1" noshade width="26%" align="center" color="#000000">


<DIV align="center" style="font-size: 10pt"><B>Commission file number 1-8033</B></DIV>


<P align="center" style="font-size: 24pt"><B>PERMIAN BASIN ROYALTY TRUST</B>


<DIV align="center" style="font-size: 10pt"><B>(Exact Name of Registrant as Specified in the Permian Basin Royalty Trust Indenture)</B></DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="47%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="47%">&nbsp;</TD>
</TR>
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<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><B>Texas</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>75-6280532</B></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">(State or other jurisdiction of
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(I.R.S. employer</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">incorporation or organization)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">identification number)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt">Bank of America, N.A.<BR>
Trust Department<BR>
P.O. Box 830650<BR>
Dallas, Texas 75202<BR>
(Address of principal executive offices;<BR>
Zip Code)



<P align="center" style="font-size: 10pt">Registrant&#146;s telephone number, including area code:<BR>
(214)&nbsp;209-2400



<P align="center" style="font-size: 10pt"><B>SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:</B>


<DIV align="center">
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    <TD width="46%">&nbsp;</TD>
    <TD width="25%">&nbsp;</TD>
    <TD width="29%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Name of Each Exchange on</B></TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Title of Each Class</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Which Registered</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top" align="center"><DIV style="margin-left:0px; text-indent:-0px">Units of Beneficial Interest
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD valign="top" align="center">New York Stock Exchange</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><B>SECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT: None</B>


<P align="left" style="font-size: 10pt">Indicate by check mark whether the registrant (1)&nbsp;has filed all reports required to be filed by
Section&nbsp;13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12&nbsp;months (or for
such shorter period that the registrant was required to file such reports), and (2)&nbsp;has been
subject to such filing requirements for the past 90&nbsp;days. Yes
<FONT face="Wingdings">&#254;</FONT>&nbsp;&nbsp; No <FONT face="Wingdings">&#111;</FONT>


<P align="left" style="font-size: 10pt">Indicate by check mark if disclosure of delinquent filers pursuant to Item&nbsp;405 of Regulation&nbsp;S-K is
not contained herein, and will not be contained, to the best of the registrant&#146;s knowledge, in
definitive proxy or information statements incorporated by reference in Part&nbsp;III of this Form 10-K
or any amendment to this Form 10-K. <FONT face="Wingdings">&#254;</FONT>


<P align="left" style="font-size: 10pt">Indicate by a check mark whether the registrant is an accelerated filer (as defined in Rule&nbsp;12b-2
of the Act). Yes <FONT face="Wingdings">&#254;</FONT> &nbsp;&nbsp;No <FONT face="Wingdings">&#111;</FONT>


<P align="left" style="font-size: 10pt">The aggregate market value of the registrant&#146;s units of beneficial interest outstanding (based on
the closing sale price on the New York Stock Exchange) held by non-affiliates of the registrant as
of the last business day of the registrant&#146;s most recently completed second fiscal quarter was
approximately $172,611,669.


<P align="left" style="font-size: 10pt">At March&nbsp;1, 2005, there were 46,608,796 units of beneficial interest outstanding.



<P align="center" style="font-size: 10pt"><B>DOCUMENTS INCORPORATED BY REFERENCE: None</B>



<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>







<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">














<P align="center" style="font-size: 10pt"><B>EXPLANATORY NOTE</B>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We are filing this Amendment No.&nbsp;1 to our Annual Report on Form 10-K/A for the year ended
December&nbsp;31, 2004 to amend and restate Item&nbsp;9A, Controls and Procedures, to include the Trustee&#146;s
report on internal control over financial reporting and the related Attestation Report of Deloitte
&#038; Touche LLP, an independent registered public accounting firm, which had been omitted from our
original Annual Report on Form 10-K as permitted by the Order Under Section&nbsp;36 of the Securities
Exchange Act of 1934 Granting an Exemption from Specified Provisions of Exchange Act Rules&nbsp;13a-1
and 15d-1 issued by the Securities and Exchange Commission on November&nbsp;30, 2004. This Amendment
speaks as of the original filing date of our Annual Report on Form 10-K and has not been updated to
reflect events occurring subsequent to the original filing date.


<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left">
<!-- TOC -->
</DIV>

<DIV align="left">
<A name="tocpage"></A>
</DIV>

<P align="center" style="font-size: 10pt"><B>TABLE OF CONTENTS</B>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="90%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2" style="border-bottom: 1px solid #000000"><B>Page</B></TD>
    <TD>&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">

<TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#101">Item&nbsp;9A. Controls and Procedures</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">1</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">

<TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#102">Item&nbsp;15.
Exhibits, Financial Statement Schedules</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">3</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#103">Signature</A></DIV></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="right">5</TD>
    <TD>&nbsp;</TD>
</TR>
<!-- End Table Body -->
<TR><TD colspan="9"><FONT size="2">&nbsp;<A HREF="d24083a1exv31w1.htm">Certification Required By Rule 13a-14(a)/15d-14(a)</A></FONT></TD></TR>
<TR><TD colspan="9"><FONT size="2">&nbsp;<A HREF="d24083a1exv32w1.htm">Certification Required By Rule 13a-14(b)/15d-14(b) and Section 906</A></FONT></TD></TR>
</TABLE>
</DIV>

<DIV align="left">
<!-- /TOC -->
</DIV>


<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="left">
<A name="101"></A>
</DIV>

<P align="left" style="font-size: 10pt"><B>Item&nbsp;9A. Controls and Procedures.</B>



<P align="left" style="font-size: 10pt"><B>Disclosure Controls and Procedures</B>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As of the end of the period covered by this report, the Trustee carried out an evaluation of
the effectiveness of the design and operation of the Trust&#146;s disclosure controls and procedures
pursuant to Rules&nbsp;13a-15 and 15d-15 promulgated under the Securities and Exchange Act of 1934, as
amended. Based upon that evaluation, the Trustee concluded that the Trust&#146;s disclosure controls and
procedures are effective in timely alerting the Trustee to material information relating to the
Trust required to be included in the Trust&#146;s periodic filings with the Securities and Exchange
Commission. In its evaluation of disclosure controls and procedures, the Trustee has relied, to the
extent considered reasonable, on information provided by Burlington Resources Oil &#038; Gas Company,
the owner of the Waddell Ranch properties, and Riverhill Energy Corporation, the owner of the Texas
Royalty properties.


<P align="left" style="font-size: 10pt"><B>Changes in Internal Control over Financial Reporting</B>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;There has not been any change in the Trust&#146;s internal control over financial reporting during
the fourth quarter of 2004 that has materially affected, or is reasonably likely to materially
affect, the Trust&#146;s internal control over financial reporting.


<P align="left" style="font-size: 10pt"><B>Trustee&#146;s Report on Internal Control Over Financial Reporting</B>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Trustee is responsible for establishing and maintaining adequate internal control over
financial reporting, as such term is defined in Rule&nbsp;13a-15(f) promulgated under the Securities and
Exchange Act of 1934, as amended. The Trustee conducted an evaluation of the effectiveness of the
Trust&#146;s internal control over financial reporting &#151; modified cash basis (&#147;internal control over
financial reporting&#148;) based on the criteria established in <I>Internal Control-Integrated Framework</I>
issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on the
Trustee&#146;s evaluation under the framework in <I>Internal Control-Integrated Framework</I>, the Trustee
concluded that the Trust&#146;s internal control over financial reporting was effective as of December
31, 2004. The Trustee&#146;s assessment of the effectiveness of the Trust&#146;s internal control over
financial reporting as of December&nbsp;31, 2004 has been audited by Deloitte &#038; Touche LLP, an
independent registered public accounting firm, as stated in their report which is included herein.


<P align="left" style="font-size: 10pt"><B>Report of Independent Registered Public Accounting Firm</B>



<P align="left" style="font-size: 10pt">UNIT HOLDERS OF PERMIAN BASIN ROYALTY TRUST AND BANK OF AMERICA, N.A., TRUSTEE



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We have audited the Trustee&#146;s assessment, included in the accompanying trustee report on
internal control over financial reporting that Permian Basin Royalty Trust (the &#147;Trust&#148;) maintained
effective internal control over financial reporting as of December&nbsp;31, 2004, based on criteria
established in <I>Internal Control &#151; Integrated Framework </I>issued by the Committee of Sponsoring
Organizations of the Treadway Commission. The Trustee is responsible for maintaining effective
internal control over financial reporting and for its assessment of the effectiveness of internal
control over financial reporting. Our responsibility is to express an
opinion on the Trustee&#146;s assessment and an opinion on the effectiveness of the Trust&#146;s internal
control over financial reporting based on our audit.


<P align="center" style="font-size: 10pt">1
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We conducted our audit in accordance with the standards of the Public Company Accounting
Oversight Board (United States). Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether effective internal control over financial reporting was
maintained in all material respects. Our audit included obtaining an understanding of internal
control over financial reporting, evaluating management&#146;s assessment, testing and evaluating the
design and operating effectiveness of internal control, and performing such other procedures as we
considered necessary in the circumstances. We believe that our audit provides a reasonable basis
for our opinions.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Trust&#146;s internal control over financial reporting is a process designed by, or under the
supervision of, the Trustee, or persons performing similar functions, and effected by the Trustee
to provide reasonable assurance regarding the reliability of financial reporting and the
preparation of financial statements for external purposes in accordance with the modified cash
basis of accounting, which is a comprehensive basis of accounting other than accounting principles
generally accepted in the United States of America and is described in Note 3 to the Trust&#146;s
financial statements. The Trust&#146;s internal control over financial reporting includes those
policies and procedures that (1)&nbsp;pertain to the maintenance of records that, in reasonable detail,
accurately and fairly reflect the transactions and dispositions of the assets of the Trust; (2)
provide reasonable assurance that transactions are recorded as necessary to permit preparation of
financial statements in accordance with the modified cash basis of accounting discussed above, and
that receipts and expenditures of the Trust are being made only in accordance with authorizations
of the Trustee; and (3)&nbsp;provide reasonable assurance regarding prevention or timely detection of
unauthorized acquisition, use, or disposition of the Trust&#146;s assets that could have a material
effect on the financial statements.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Because of the inherent limitations of internal control over financial reporting, including
the possibility of collusion or improper management override of controls, material misstatements
due to error or fraud may not be prevented or detected on a timely basis. Also, projections of any
evaluation of the effectiveness of the internal control over financial reporting to future periods
are subject to the risk that the controls may become inadequate because of changes in conditions,
or that the degree of compliance with the policies or procedures may deteriorate.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In our opinion, the Trustee&#146;s assessment that the Trust maintained effective internal control
over financial reporting as of December&nbsp;31, 2004, is fairly stated, in all material respects, based
on the criteria established in <I>Internal Control &#151; Integrated Framework </I>issued by the Committee of
Sponsoring Organizations of the Treadway Commission. Also in our opinion, the Trust maintained, in
all material respects, effective internal control over financial reporting as of December&nbsp;31, 2004,
based on the criteria established in <I>Internal Control &#151; Integrated Framework </I>issued by the
Committee of Sponsoring Organizations of the Treadway Commission.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;We have also audited, in accordance with the standards of the Public Company Accounting
Oversight Board (United States), the statements of assets, liabilities and trust corpus of the
Trust as of December&nbsp;31, 2004 and 2003, and the related statements of distributable income and
changes in trust corpus for each of the three years in the period ended December&nbsp;31, 2004, which
financial statements have been prepared on the modified cash basis of accounting as described in
Note 3 to such financial statements, and our report dated March&nbsp;14, 2005 expressed an unqualified
opinion on those financial statements.


<P align="left" style="font-size: 10pt">DELOITTE &#038; TOUCHE LLP


<P align="left" style="font-size: 10pt">Dallas, Texas<BR>
April&nbsp;4, 2005


<P align="center" style="font-size: 10pt">2
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left">
<A name="102"></A>
</DIV>
<P align="left" style="font-size: 10pt"><B>Item&nbsp;15. Exhibits, Financial Statement Schedules. </B>(a)&nbsp;The following documents are filed as a part
of this report:



<P align="left" style="font-size: 10pt"><I>Exhibits:</I>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="12%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="82%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center"><B>Exhibit</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Number</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Exhibit</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top" align="right">(4)(a)</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Permian Basin Royalty Trust Indenture dated November&nbsp;3, 1980,
between Southland Royalty Company and The First National Bank of
Fort Worth (now Bank of America, N.A.), as Trustee, heretofore
filed as Exhibit (4)(a) to the Trust&#146;s Annual Report on Form&nbsp;10-K
to the Securities and Exchange Commission for the fiscal year
ended December&nbsp;31, 1980, is incorporated herein by reference.*</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top" align="right">(b)</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net Overriding Royalty Conveyance (Permian Basin Royalty Trust)
from Southland Royalty Company to The First National Bank of Fort
Worth (now Bank of America, N.A.), as Trustee, dated November&nbsp;3,
1980 (without Schedules), heretofore filed as Exhibit (4)(b) to
the Trust&#146;s Annual Report on Form&nbsp;10-K to the Securities and
Exchange Commission for the fiscal year ended December&nbsp;31, 1980,
is incorporated herein by reference.*</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top" align="right">(c)</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net Overriding Royalty Conveyance (Permian Basin Royalty Trust
&#151; Waddell Ranch) from Southland Royalty Company to The First
National Bank of Fort Worth (now Bank of America, N.A.), as
Trustee, dated November&nbsp;3, 1980 (without Schedules), heretofore
filed as Exhibit (4)(c) to the Trust&#146;s Annual Report on Form&nbsp;10-K
to the Securities and Exchange Commission for the fiscal year
ended December&nbsp;31, 1980, is incorporated herein by reference.*</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top" align="right">(10)</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Registration Rights Agreement dated as of July&nbsp;21, 2004 by
and between Burlington Resources, Inc. and Bank of America, N.A.,
as trustee of Permian Basin Royalty Trust, heretofore filed as
Exhibit&nbsp;10.1 to the Trust&#146;s Quarterly Report on Form&nbsp;10-Q to the
Securities and Exchange Commission for the quarterly period ended
June&nbsp;30, 2004 is incorporated herein by reference.*</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top" align="right">(13)</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Registrant&#146;s Annual Report to security holders for fiscal year
ended December&nbsp;31, 2004, heretofore filed as Exhibit&nbsp;13 on From
10-K to the Securities and Exchange Commission for the fiscal year
ended December&nbsp;31, 2004, is incorporated herein by reference.*</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top" align="right">(23)</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Consent of Cawley, Gillespie &#038; Associates, Inc., reservoir
engineer, heretofore filed as Exhibit&nbsp;23 on From 10-K to the</DIV></TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt">3
</DIV>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="12%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="82%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center"><B>Exhibit</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Number</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Exhibit</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:30px; text-indent:-0px">Securities and Exchange Commission for the fiscal year ended
December&nbsp;31, 2004, is incorporated herein by reference.*</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top" align="right">(31.1)</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Certification required by Rule&nbsp;13a-14(a)/15d-14(a).**</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top" align="right">(32.1)</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&#151;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Certification required by Rule&nbsp;13a-14(b)/15d-14(b) and Section
906 of the Sarbanes-Oxley Act of 2002.**</DIV></TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<P>
<HR size="1" width="18%" align="left" noshade color="#000000">

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">


<TR valign="top">
    <TD width="1%" nowrap align="left">*</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="96%">A copy of this Exhibit is available to any Unit holder, at the actual cost of reproduction,
upon written request to the Trustee, Bank of America, N.A., P.O. Box 830650, Dallas, Texas
75283-0650.</TD>
</TR>

<TR><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD width="1%" nowrap align="left">**</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="96%">Filed herewith.</TD>
</TR>

</TABLE>


<P align="center" style="font-size: 10pt">4
</DIV>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">





<DIV align="left">
<A name="103"></A>
</DIV>

<P align="center" style="font-size: 10pt"><B>SIGNATURE</B>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;PURSUANT TO THE REQUIREMENTS OF SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934,
THE REGISTRANT HAS DULY CAUSED THIS REPORT TO BE SIGNED ON ITS BEHALF BY THE UNDERSIGNED, THEREUNTO
DULY AUTHORIZED.

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="48%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="46%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" valign="top" align="left">PERMIAN BASIN ROYALTY TRUST</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" valign="top" align="left">By: BANK OF AMERICA, N.A., Trustee</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;By:
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top"> /s/ Ron E. Hooper</TD>
</TR>
<TR style="font-size: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" colspan="3" valign="top">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron E. Hooper</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" align="left" valign="top">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Seni
or Vice President</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="left" style="font-size: 10pt">Date: April&nbsp;5, 2005



<P align="center" style="font-size: 10pt">(The Trust has no directors or executive officers.)



<P align="center" style="font-size: 10pt">5
</DIV>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">



<DIV align="left">
<A name="104"></A>
</DIV>

<P align="center" style="font-size: 10pt"><B>INDEX TO EXHIBITS</B>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="12%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="82%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center"><B>EXHIBIT</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>NUMBER</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>EXHIBIT</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top" align="right">(4)(a)</TD>
    <TD>&nbsp;</TD>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD valign="top" align="right">&#151;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Permian Basin Royalty Trust Indenture dated November&nbsp;3, 1980,
between Southland Royalty Company and The First National Bank of
Fort Worth (now Bank of America, N.A.), as Trustee, heretofore
filed as Exhibit (4)(a) to the Trust&#146;s Annual Report on Form&nbsp;10-K
to the Securities and Exchange Commission for the fiscal year
ended December&nbsp;31, 1980, is incorporated herein by reference.*</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="right"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD valign="top" align="right">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top" align="right">(b)</TD>
    <TD>&nbsp;</TD>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD valign="top" align="right">&#151;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net Overriding Royalty Conveyance (Permian Basin Royalty Trust)
from Southland Royalty Company to The First National Bank of Fort
Worth (now Bank of America, N.A.), as Trustee, dated November&nbsp;3,
1980 (without Schedules), heretofore filed as Exhibit (4)(b) to
the Trust&#146;s Annual Report on Form&nbsp;10-K to the Securities and
Exchange Commission for the fiscal year ended December&nbsp;31, 1980,
is incorporated herein by reference.*</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="right"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD valign="top" align="right">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top" align="right">(c)</TD>
    <TD>&nbsp;</TD>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD valign="top" align="right">&#151;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Net Overriding Royalty Conveyance (Permian Basin Royalty Trust
&#151; Waddell Ranch) from Southland Royalty Company to The First
National Bank of Fort Worth (now Bank of America, N.A.), as
Trustee, dated November&nbsp;3, 1980 (without Schedules), heretofore
filed as Exhibit (4)(c) to the Trust&#146;s Annual Report on Form&nbsp;10-K
to the Securities and Exchange Commission for the fiscal year
ended December&nbsp;31, 1980, is incorporated herein by reference.*</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="right"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD valign="top" align="right">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top" align="right">(10)</TD>
    <TD>&nbsp;</TD>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD valign="top" align="right">&#151;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Registration Rights Agreement dated as of July&nbsp;21, 2004 by
and between Burlington Resources, Inc. and Bank of America, N.A.,
as trustee of Permian Basin Royalty Trust, heretofore filed as
Exhibit&nbsp;10.1 to the Trust&#146;s Quarterly Report on Form&nbsp;10-Q to the
Securities and Exchange Commission for the quarterly period ended
June&nbsp;30, 2004 is incorporated herein by reference.*</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="right"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD valign="top" align="right">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top" align="right">(13)</TD>
    <TD>&nbsp;</TD>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD valign="top" align="right">&#151;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Registrant&#146;s Annual Report to security holders for fiscal year
ended December&nbsp;31, 2004, heretofore filed as Exhibit&nbsp;13 on From
10-K to the Securities and Exchange Commission for the fiscal year
ended December&nbsp;31, 2004, is incorporated herein by reference.*</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="right"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD valign="top" align="right">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top" align="right">(23)</TD>
    <TD>&nbsp;</TD>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD valign="top" align="right">&#151;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Consent of Cawley, Gillespie &#038; Associates, Inc., reservoir
engineer, heretofore filed as Exhibit&nbsp;23 on From 10-K to the
Securities and Exchange Commission for the fiscal year ended
December&nbsp;31, 2004, is incorporated herein by reference.*</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="right"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD valign="top" align="right">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top" align="right">(31.1)</TD>
    <TD>&nbsp;</TD>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD valign="top" align="right">&#151;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Certification required by Rule&nbsp;13a-14(a)/15d-14(a).**</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="right"><DIV style="margin-left:15px; text-indent:-15px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD valign="top" align="right">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top" align="right">(32.1)</TD>
    <TD>&nbsp;</TD>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD valign="top" align="right">&#151;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:15px; text-indent:-15px">Certification required by Rule&nbsp;13a-14(b)/15d-14(b) and Section</DIV></TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt">6
</DIV>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="12%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="82%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center"><B>EXHIBIT</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>NUMBER</B></TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>EXHIBIT</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD valign="top" align="right">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD><DIV style="margin-left:30px; text-indent:-15px">906 of the Sarbanes-Oxley Act of 2002.**</DIV></TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<P>
<HR size="1" width="18%" align="left" noshade color="#000000">

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top">
    <TD width="1%" nowrap align="left">*</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="96%">A copy of this Exhibit is available to any Unit holder, at the actual cost of reproduction, upon
written request to the Trustee, Bank of</TD>
</TR>

<TR valign="top">
    <TD colspan="3">America, N.A., P.O. Box 830650, Dallas, Texas 75283-0650.</TD>
</TR>


<TR><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD width="1%" nowrap align="left">**</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="96%">Filed herewith.</TD>
</TR>

</TABLE>


<P align="center" style="font-size: 10pt">7
</DIV>

</BODY>
</HTML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-31.1
<SEQUENCE>2
<FILENAME>d24083a1exv31w1.htm
<DESCRIPTION>CERTIFICATION REQUIRED BY RULE 13A-14(A)/15D-14(A)
<TEXT>
<HTML>
<HEAD>
<TITLE>exv31w1</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
<!-- PAGEBREAK -->
<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">






<P align="right" style="font-size: 10pt">EXHIBIT 31.1



<P align="center" style="font-size: 10pt"><B>Certification Required by Rule&nbsp;13a-14(a) or Rule&nbsp;15d-14(a)</B>



<P align="left" style="font-size: 10pt">I, Ron Hooper, certify that:



<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="left">1.&nbsp;&nbsp;</TD>
    <TD>I have reviewed this Amendment No.&nbsp;1 to annual report on Form 10-K/A of Permian Basin Royalty
Trust, for which Bank of America, N.A., acts as Trustee;</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="left">2.&nbsp;&nbsp;</TD>
    <TD>Based on my knowledge, this annual report does not contain any untrue statement of a material
fact or omit to state a material fact necessary to make the statements made, in light of the
circumstances under which such statements were made, not misleading with respect to the period
covered by this annual report;</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="left">3.&nbsp;&nbsp;</TD>
    <TD>Based on my knowledge, the financial statements, and other financial information included in
this annual report, fairly present in all material respects the financial condition,
distributable income and changes in trust corpus of the registrant as of, and for, the periods
presented in this annual report;</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="left">4.&nbsp;&nbsp;</TD>
    <TD>I am responsible for establishing and maintaining disclosure controls and procedures (as
defined in Exchange Act Rules&nbsp;13a-15(e) and 15d-15(e)) and internal control over financial
reporting (as defined in Exchange Act Rules&nbsp;13a-15(f) and 15d-15(f)), or for causing such
controls and procedures to be established and maintained, for the registrant and I have:</TD>
</TR>

</TABLE>

<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">

<TD width="1%" nowrap align="left">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
    <TD>a) designed such disclosure controls and procedures, or caused such disclosure controls and
procedures to be designed under my supervision, to ensure that material information relating
to the registrant, including its consolidated subsidiaries, is made known to me by others
within those entities, particularly during the period in which this annual report is being
prepared;</TD>
</TR>

<TR><TD>&nbsp;</TD></TR>

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
<TD width="1%" nowrap align="left">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
<TD>b) designed such internal control over financial reporting, or caused such internal control
over financial reporting to be designed under my supervision, to provide reasonable
assurance regarding the reliability of financial reporting and the preparation of financial
statements for external purposes;</TD>

</TR>

<TR><TD>&nbsp;</TD></TR>

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
<TD width="1%" nowrap align="left">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
<TD>c) evaluated the effectiveness of the registrant&#146;s disclosure controls and procedures and
presented in this annual report my conclusions about the effectiveness of the disclosure
controls and procedures, as of the end of the period covered by this report based on such
evaluation; and</TD>
</TR>

<TR><TD>&nbsp;</TD></TR>

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
<TD width="1%" nowrap align="left">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
<TD>d) disclosed in this annual report any change in the registrant&#146;s internal control over
financial reporting that occurred during the registrant&#146;s most recent fiscal quarter (the
registrant&#146;s fourth fiscal quarter in the case of an annual report) that has materially
affected, or is reasonably likely to materially affect, the registrant&#146;s internal control
over financial reporting;</TD>
</TR>

</TABLE>


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="1%" nowrap align="left">5.&nbsp;&nbsp;</TD>
    <TD>I have disclosed, based on my most recent evaluation of internal control over financial
reporting, to the registrant&#146;s auditors:</TD>
</TR>

</TABLE>

<P align="center" style="font-size: 10pt">
</DIV>

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<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">


<P><TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">



</TABLE>



<P align="left" style="margin-left:3%; font-size: 10pt">a) all significant deficiencies and material weaknesses in the design or operation of
internal control over financial reporting which are reasonably likely to adversely affect
the registrant&#146;s ability to record, process, summarize and report financial information; and



<P align="left" style="margin-left:3%; font-size: 10pt">b) any fraud, whether or not material, that involves management or other employees who have
a significant role in the registrant&#146;s internal control over financial reporting.



<P align="left" style="margin-left:3%; font-size: 10pt">In giving the certifications in paragraphs 4 and 5 above, I have relied to the extent I
consider reasonable on information provided to me by Burlington Resources Oil &#038; Gas Company
and Riverhill Energy Corporation.

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="5%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="29%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="6%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="49%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
</DIV></TD>
    <TD colspan="2" align="left" valign="top">Date: April&nbsp;5, 2005

</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">By:
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">/s/ Ron E. Hooper</TD>
</TR>
<TR style="font-size: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Ron Hooper</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Senior Vice President and Administrator</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Bank of America, N.A., Trustee</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt">
</DIV>

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</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-32.1
<SEQUENCE>3
<FILENAME>d24083a1exv32w1.htm
<DESCRIPTION>CERTIFICATION REQUIRED BY RULE 13A-14(B)/15D-14(B) AND SECTION 906
<TEXT>
<HTML>
<HEAD>
<TITLE>exv32w1</TITLE>
</HEAD>
<BODY bgcolor="#FFFFFF">
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<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">


<P align="right" style="font-size: 10pt">EXHIBIT 32.1



<P align="center" style="font-size: 10pt"><B>Certification required by Rule&nbsp;13a-14(b) or<BR>
Rule&nbsp;15d-14(b) and Section&nbsp;906 of the Sarbanes-Oxley Act of 2002</B>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In connection with the Amendment No.&nbsp;1 to Annual Report of Permian Basin Royalty Trust (the
&#147;Trust&#148;) on Form 10-K/A for the period ended December&nbsp;31, 2004, as filed with the Securities and
Exchange Commission on the date hereof (the &#147;Report&#148;), the undersigned, not in its individual
capacity but solely as the trustee of the Trust, certifies pursuant to 18 U.S.C. 1350, as adopted
pursuant to Section&nbsp;906 of the Sarbanes-Oxley Act of 2002, that to its knowledge:


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="4%" nowrap align="left">(1)&nbsp;&nbsp;</TD>
    <TD>The Report fully complies with the requirements of Section 13(a) or 15(d) of
the Securities Exchange Act of 1934, as amended; and</TD>
</TR>

<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" style="background: transparent">&nbsp;</TD>
    <TD width="4%" nowrap align="left">(2)&nbsp;&nbsp;</TD>
    <TD>The information contained in the Report fairly presents, in all material
respects, the financial condition and results of operations of the Trust.</TD>
</TR>

</TABLE>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="48%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="46%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" valign="top" align="left">BANK OF AMERICA, N.A., TRUSTEE FOR</TD>
</TR>
<TR valign="bottom">
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" valign="top" align="left">PERMIAN BASIN ROYALTY TRUST</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Date: April&nbsp;5, 2005
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">By:
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">/s/ Ron E. Hooper</TD>
</TR>
<TR style="font-size: 1px">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top" style="border-top: 1px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ron E. Hooper,<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Senior Vice President,</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Royalty Management</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A signed original of this written statement required by Section&nbsp;906 has been provided to the
Permian Basin Royalty Trust and will be retained by the Permian Basin Royalty Trust and furnished
to the Securities and Exchange Commission or its staff upon request.



<P align="center" style="font-size: 10pt">
</DIV>

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