UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549   FORM 10-Q    ☒
Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the Quarterly Period ended March 31, 2019  ☐
Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from
 to Commission file number 1-8033   PERMIAN BASIN ROYALTY TRUST (Exact Name of Registrant as Specified in the Permian Basin Royalty Trust Indenture)    Texas

75-6280532(State or Other Jurisdiction ofIncorporation or Organization)

(I.R.S. EmployerIdentification No.) Royalty Trust Management Simmons Bank 2911 Turtle
Creek Boulevard Suite 850 Dallas, Texas 75219 (Address of Principal Executive Offices; Zip Code) (855) 588-7839 (Registrants Telephone Number, Including Area Code)   Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the
Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90
days.    Yes   ☒    No  ☐ Indicate by check mark whether the
registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such
shorter period that the registrant was required to submit such files).    Yes  ☐    No  ☐ Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a
non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of large accelerated filer, accelerated filer, smaller reporting
company, and emerging growth company in Rule 12b-2 of the Exchange Act.  Large accelerated filer

☐

Accelerated filer

☒Non-accelerated filer

☐

Smaller reporting company

☒Emerging growth company

☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended
transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange
Act).    Yes  ☐    No  ☒ Securities registered pursuant to Section 12(b) of
the Act:  Title of Each Class

Trading Symbol(s)

Name of Each Exchange on
Which RegisteredUnits of Beneficial Interest

PBT

New York Stock Exchange Number of Units of beneficial interest of the Trust outstanding at May 1, 2019: 46,608,796.




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PERMIAN BASIN ROYALTY TRUST PART IFINANCIAL INFORMATION  Item 1.
Financial Statements The condensed financial statements included herein have been prepared by Simmons Bank as Trustee for the Permian Basin Royalty Trust (the Trust),
without audit, pursuant to the rules and regulations of the Securities and Exchange Commission. Effective February 20, 2018, Simmons Bank (the Trustee) became the new trustee for the Trust. Certain information and footnote
disclosures normally included in annual financial statements have been condensed or omitted pursuant to such rules and regulations, although the Trustee believes that the disclosures are adequate to make the information presented not misleading. It
is suggested that these condensed interim financial statements and notes thereto be read in conjunction with the financial statements and the notes thereto included in the Trusts latest annual report on Form
10-K. In the opinion of the Trustee, all adjustments, consisting only of normal recurring adjustments, necessary to present fairly the assets, liabilities and trust corpus of the Permian Basin Royalty Trust at
March 31, 2019, the distributable income for the three-month periods ended March 31, 2019 and 2018 and the changes in trust corpus for the three-month periods ended March 31, 2019 and 2018, have been included. The distributable income
for such interim periods is not necessarily indicative of the distributable income for the full year. The condensed interim financial statements as of
March 31, 2019 and for the three-month periods ended March 31, 2019 and 2018, included herein, have been reviewed by Weaver and Tidwell, L.L.P., an independent registered public accounting firm, as stated in their report appearing herein.  2




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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Unit Holders of Permian Basin Royalty Trust and Simmons
Bank, Trustee Dallas, Texas Results of Review of
Interim Financial Statements We have reviewed the accompanying condensed statements of assets, liabilities and trust corpus of Permian Basin Royalty
Trust (the Trust) as of March 31, 2019, and the related condensed statements of distributable income and changes in trust corpus for the three-month periods ended March 31, 2019 and 2018, and the related notes (collective
referred to as the condensed interim financial statements). Based on our review, we are not aware of any material modifications that should be made to the accompanying condensed interim financial statements for them to be in conformity
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. As described in Note 2 to the condensed interim financial statements, these condensed interim financial statements were prepared on a modified cash basis of
accounting, which is a comprehensive basis of accounting other than accounting principles generally accepted in the United States of America. Basis
for Review Results These condensed interim financial statements are the responsibility of the Trustee. We conducted our review in accordance with the
standards of the Public Company Accounting Oversight Board (United States) (PCAOB). A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for
financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the PCAOB, the objective of which is the expression of an opinion regarding the financial statements taken as a whole.
Accordingly, we do not express such an opinion. /s/ WEAVER AND TIDWELL, L.L.P. Dallas, TX May 8, 2019  3




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PERMIAN BASIN ROYALTY TRUST CONDENSED STATEMENTS OF ASSETS, LIABILITIES AND TRUST CORPUS  March 31,2019(Unaudited)


December 31,2018ASSETSCash and short-term investments

$
2,245,165


$
3,526,613Net overriding royalty interests in producing oil and gas properties (net of accumulated
amortization of $10,517,485and $10,507,636 at March 31, 2019 and December 31, 2018, respectively)


457,731



467,580TOTAL ASSETS

$
2,702,896


$
3,994,193LIABILITIES AND TRUST CORPUSDistribution payable to Unit holders

$
1,195,165


$
2,476,613Commitments and reserves for contingencies (Note 6)


1,050,000



1,050,000Trust corpus  46,608,796 Units of beneficial interest authorized and outstanding


457,731



467,580TOTAL LIABILITIES AND TRUST CORPUS

$
2,702,896


$
3,994,193 The accompanying notes are an integral part of these condensed financial statements.  4




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PERMIAN BASIN ROYALTY TRUST CONDENSED STATEMENTS OF DISTRIBUTABLE INCOME (UNAUDITED)  THREE MONTHS ENDEDMarch 31, 2019


THREE MONTHS ENDEDMarch 31, 2018Royalty income

$
4,530,445


$
9,719,305Interest income


7,158



5,4764,537,603



9,724,781General and administrative expenditures


(301,131
)


(413,850
)Distributable income

$
4,236,472


$
9,310,931Distributable income per Unit (46,608,796 Units)

$
.09


$
.20 The accompanying notes are an integral part of these condensed financial statements.  5




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PERMIAN BASIN ROYALTY TRUST CONDENSED STATEMENTS OF CHANGES IN TRUST CORPUS (UNAUDITED)  THREE MONTHS ENDEDMarch 31, 2019


THREE MONTHS ENDEDMarch 31, 2018Trust corpus, beginning of period

$
467,580


$
529,043Amortization of net overriding royalty interests


(9,849
)


(19,322
)Distributable income


4,236,472



9,310,931Distributions declared


(4,236,472
)


(9,310,931
)Total Trust Corpus, end of period

$
457,731


$
509,721Distributions per Unit

$
.09


$
.20 The accompanying notes are an integral part of these condensed financial statements.  6




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PERMIAN BASIN ROYALTY TRUST NOTES TO CONDENSED FINANCIAL STATEMENTS (UNAUDITED)  1.
TRUST ORGANIZATION AND PROVISIONS The Permian Basin Royalty Trust (Trust) was established as of November 1, 1980. Simmons Bank (Trustee) is Trustee
for the Trust. The net overriding royalties conveyed to the Trust include (1) a 75% net overriding royalty in Southland Royalty Companys fee mineral interest in the Waddell Ranch in Crane County, Texas (the Waddell Ranch
properties) and (2) a 95% net overriding royalty carved out of Southland Royalty Companys major producing royalty properties in Texas (the Texas Royalty properties). The net overriding royalty for the Texas Royalty
properties is subject to the provisions of the lease agreements under which such royalties were created. The net overriding royalties above are collectively referred to as the Royalties. On November 3, 1980, Units of Beneficial Interest (Units) in the Trust were distributed to the Trustee for the benefit of
Southland Royalty Companys shareholders of record as of November 3, 1980, who received one Unit in the Trust for each share of Southland Royalty Company common stock held. The Units are traded on the New York Stock Exchange. Burlington Resources Oil & Gas Company LP (BROG), a subsidiary of ConocoPhillips, is the interest owner for the Waddell
Ranch properties and Riverhill Energy Corporation (Riverhill Energy), formerly a wholly owned subsidiary of Riverhill Capital Corporation (Riverhill Capital) and formerly an affiliate of Coastal Management Corporation
(CMC), is the interest owner for the Texas Royalty properties. BROG currently conducts all field, technical and accounting operations on behalf of BROG with regard to the Waddell Ranch properties. Riverhill Energy currently conducts the
accounting operations for the Texas Royalty properties. In February 1997, BROG sold its interest in the Texas Royalty properties to
Riverhill Energy. The Trustee was advised that in the first quarter of 1998, Schlumberger Technology Corporation (STC)
acquired all of the shares of stock of Riverhill Capital. Prior to such acquisition by STC, CMC and Riverhill Energy were wholly owned subsidiaries of Riverhill Capital. The Trustee was further advised that in connection with STCs acquisition
of Riverhill Capital, the shareholders of Riverhill Capital acquired ownership of all of the shares of stock of Riverhill Energy. Thus, the ownership in the Texas Royalty properties referenced above remained in Riverhill Energy, the stock ownership
of which was acquired by the former shareholders of Riverhill Capital.  7




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On January 9, 2014, Bank of America N.A. (as successor to The First National Bank of
Fort Worth) gave notice to Unit holders that it would be resigning as trustee of the Trust subject to certain conditions that included the appointment of Southwest Bank as successor trustee. At a Special Meeting of Trust Unit holders, the Unit
holders approved the appointment of Southwest Bank as successor trustee of the Trust once the resignation of Bank of America N.A. took effect and also approved certain amendments to the Trust Indenture. The effective date of Bank of America
N.A.s resignation and the effective date of Southwest Banks appointment as successor trustee was August 29, 2014. Effective October 19, 2017, Simmons First National Corporation (SFNC) completed its acquisition of
First Texas BHC, Inc., the parent company of Southwest Bank. SFNC is the parent company of Simmons Bank. SFNC merged Southwest Bank with Simmons Bank effective February 20, 2018. The defined term Trustee as used herein shall refer
to Bank of America N.A. for periods prior to August 29, 2014, and shall refer to Southwest Bank for periods from August 29, 2014 through February 19, 2018 and shall refer to Simmons Bank for periods on and after February 20,
2018. The terms of the Trust Indenture provide, among other things, that:  

the Trust shall not engage in any business or commercial activity of any kind or acquire any assets other than
those initially conveyed to the Trust;  

the Trustee may not sell all or any part of the Royalties unless approved by holders of 75% of all Units
outstanding in which case the sale must be for cash and the proceeds promptly distributed;  

the Trustee may establish a cash reserve for the payment of any liability which is contingent or uncertain in
amount;  

the Trustee is authorized to borrow funds to pay liabilities of the Trust; and  

the Trustee will make monthly cash distributions to Unit holders (see Note 3).  2.
ACCOUNTING POLICIES Basis of Accounting The
financial statements of the Trust are prepared on the following basis:  

Royalty income recorded for a month is the amount computed and paid to the Trustee on behalf of the Trust by the
interest owners. Royalty income consists of the amounts received by the owners of the interest burdened by the Royalties from the sale of production less accrued production costs, development and drilling costs, applicable taxes, operating charges
and other costs and deductions multiplied by 75% in the case of the Waddell Ranch properties and 95% in the case of the Texas Royalty properties.  8




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

Trust expenses, consisting principally of routine general and administrative costs, recorded are based on
liabilities paid and cash reserves established out of cash received or borrowed funds for liabilities and contingencies.  

Distributions to Unit holders are recorded when declared by the Trustee.  

Royalty income is computed separately for each of the conveyances under which the Royalties were conveyed to the
Trust. If monthly costs exceed revenues for any conveyance (excess costs), such excess costs cannot reduce royalty income from other conveyances, but is carried forward with accrued interest to be recovered from future net proceeds of
that conveyance. The financial statements of the Trust differ from financial statements prepared in accordance with
accounting principles generally accepted in the United States of America (GAAP) because revenues are not accrued in the month of production, expenses are recorded when paid and certain cash reserves may be established for contingencies
which would not be accrued in financial statements prepared in accordance with GAAP. Amortization of the Royalties calculated on a unit-of-production basis is charged
directly to trust corpus. This comprehensive basis of accounting other than GAAP corresponds to the accounting permitted for royalty trusts by the U.S. Securities and Exchange Commission as specified by Staff Accounting Bulletin Topic 12:E,
Financial Statements of Royalty Trusts. Use of Estimates The preparation of financial statements in conformity with the basis of accounting described above requires management to make estimates and
assumptions that affect reported amounts of certain assets, liabilities, revenues and expenses as of and for the reporting periods. Actual results may differ from such estimates. Contingencies Contingencies related to the underlying properties that are unfavorably resolved would generally be reflected by the Trust as reductions to
future royalty income payments to the Trust with corresponding reductions to cash distributions to Unit holders.  9




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Distributable Income Per Unit Basic distributable income per Unit is computed by dividing distributable income by the weighted average of Units outstanding. Distributable
income per Unit assuming dilution is computed by dividing distributable income by the weighted average number of Units and equivalent Units outstanding. The Trust had no equivalent Units outstanding for any period presented. Therefore, basic
distributable income per Unit and distributable income per Unit assuming dilution are the same. New Accounting Pronouncements There are no new accounting pronouncements that are expected to have significant impact on the Trusts financial statements.  3.
NET OVERRIDING ROYALTY INTERESTS AND DISTRIBUTION TO UNIT HOLDERS The amounts to be distributed to Unit holders (Monthly Distribution Amounts) are determined on a monthly basis. The Monthly
Distribution Amount is an amount equal to the sum of cash received by the Trustee during a calendar month attributable to the Royalties, any reduction in cash reserves and any other cash receipts of the Trust, including interest, reduced by the sum
of liabilities paid and any increase in cash reserves. If the Monthly Distribution Amount for any monthly period is a negative number, then the distribution will be zero for such month. To the extent the distribution amount is a negative number,
that amount will be carried forward and deducted from future monthly distributions until the cumulative distribution calculation becomes a positive number, at which time a distribution will be made. Unit holders of record will be entitled to receive
the calculated Monthly Distribution Amount for each month on or before 10 business days after the monthly record date, which is generally the last business day of each calendar month. The cash received by the Trustee consists of the amounts received by owners of the interest burdened by the Royalties from the sale of
production less the sum of applicable taxes, accrued production costs, development and drilling costs, operating charges and other costs and deductions, multiplied by 75% in the case of the Waddell Ranch properties and 95% in the case of the Texas
Royalty properties.  10




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4.
FEDERAL INCOME TAXES For federal income tax purposes, the Trust constitutes a fixed investment trust that is taxed as a grantor trust. A grantor trust is not
subject to federal income tax at the trust level. The Unit holders are considered for federal tax purposes to own the Trusts income and principal as though no trust were in existence. The income of the Trust is deemed to have been received or
accrued by each Unit holder at the time such income is received or accrued by the Trust and not when distributed by the Trust. If the Trust borrows funds to pay liabilities of the Trust, as contemplated in the Trust Indenture, tax-exempt Unit holders could be required to recognize unrelated business taxable income.  5.
STATE TAX CONSIDERATIONS All revenues from the Trust are from sources within Texas, which does not impose an individual income tax. Texas imposes a franchise tax at a
rate of 0.75% on gross revenues less certain deductions, as specifically set forth in the Texas franchise tax statutes. Entities subject to the Texas franchise tax generally include trusts and most other types of entities that provide limited
liability protection, unless otherwise exempt. Trusts that receive at least 90% of their federal gross income from certain passive sources, including royalties from mineral properties and other non-operated
mineral interest income, and do not receive more than 10% of their income from operating an active trade or business, generally are exempt from the Texas franchise tax as passive entities. The Trust has been and expects to continue to be
exempt from Texas franchise tax as a passive entity. Because the Trust should be exempt from Texas franchise tax at the Trust level as a passive entity, each Unit holder that is a taxable entity under the Texas franchise tax generally will be
required to include its portion of Trust revenues in its own Texas franchise tax computation. This revenue is sourced to Texas under provisions of the Texas Administrative Code providing that such income is sourced according to the principal place
of business of the Trust, which is Texas. Unit holders should consult their tax advisors regarding state tax requirements, if any,
applicable to such Unit holders ownership of Trust units.  11




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6.
COMMITMENTS AND CONTINGENCIES Contingencies related to the Underlying Properties that are unfavorably resolved would generally be reflected by the Trust as reductions to
future royalty income payments to the Trust with corresponding reductions to cash distributions to Unit holders.  7.
SUBSEQUENT EVENTS Subsequent to March 31, 2019, the Trust declared a distribution on April 18, 2019 of $0.017601 per Unit payable on May 14, 2019
to Unit holders of record on April 30, 2019. *    *    *    *    *  12




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Item 2.
Trustees Discussion and Analysis Forward Looking Information Certain information included
in this report contains, and other materials filed or to be filed by the Trust with the Securities and Exchange Commission (as well as information included in oral statements or other written statements made or to be made by the Trust) may contain
or include, forward looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended, and Section 27A of the Securities Act of 1933, as amended. Such forward looking statements may be or may concern,
among other things, capital expenditures, drilling activity, development activities, production efforts and volumes, hydrocarbon prices and the results thereof, and regulatory matters. Although the Trustee believes that the expectations reflected in
such forward-looking statements are reasonable, such expectations are subject to numerous risks and uncertainties and the Trustee can give no assurance that they will prove correct. There are many factors, none of which are within the Trustees
control, that may cause such expectations not to be realized, including, among other things, factors such as actual oil and gas prices and the recoverability of reserves, capital expenditures, general economic conditions, actions and policies of
petroleum-producing nations and other changes in the domestic and international energy markets. Such forward looking statements generally are accompanied by words such as estimate, expect, predict,
anticipate, goal, should, assume, believe, or other words that convey the uncertainty of future events or outcomes. Three Months Ended March 31, 2019 Compared to Three Months Ended March 31, 2018 For the quarter ended March 31, 2019, royalty income received by the Trust amounted to $4,530,445 compared to royalty income of $9,719,305 during the
first quarter of 2018. The decrease in royalty income is primarily attributable to a decrease in oil and gas pricing and a decrease in production of oil and gas for the quarter ending March 31, 2019, as compared to the quarter ended
March 31, 2018. Average oil and gas prices were $44.47and $3.38 for the quarter ending March 31, 2019 compared to $56.39and $3.84 for the quarter ended March 31, 2018. Interest income for the quarter ended March 31, 2019, was $7,158 compared to $5,476 during the first quarter of 2018. The increase in interest income is
primarily attributable to increased interest rates. Total expenses during the first quarter of 2019 amounted to $301,131 compared to $413,850 during the first quarter of 2018. The decrease in total expenses can be primarily attributed to decreased
expense for professional services and the timing of payment of expenses.  13




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These transactions resulted in distributable income for the quarter ended March 31, 2019, of $4,236,472
or $.09 per Unit of beneficial interest. Distributions of $0.033628, $0.031624 and $0.025642 per Unit were made to Unit holders of record as of January 31, 2019, February 28, 2019, and March 29, 2019, respectively. For the first
quarter of 2018, distributable income was $9,310,931or $.20per Unit of beneficial interest. Royalty income for the Trust for the first
quarter of the calendar year is associated with actual oil and gas production for the period of November and December 2018 and January 2019 from the properties from which the Trusts net overriding royalty interests (Royalties) were
carved. Oil and gas sales attributable to the Royalties and the properties from which the Royalties were carved are as follows:  First Quarter2019


2018Royalties:Oil sales (Bbls)


85,893



143,180Gas sales (Mcf)


221,006



511,378Properties From Which The Royalties Were Carved:Oil:Total oil sales (Bbls)


215,278



236,242Average per day (Bbls)


2,392



2,625Average price per Bbl

$
44.47


$
56.39Gas:Total gas sales (Mcf)


1,041,108



1,033,291Average per day (Mcf)


11,568



11,481Average price per Mcf

$
3.38


$
3.84 The average received price of oil decreased to an average price per barrel of $44.47 per Bbl in the first quarter of 2019,
compared to $56.39 per Bbl in the first quarter of 2018 due to worldwide market variables. The Trustee has been advised by ConocoPhillips that for the period of August 1, 1993 through March 31, 2019, the oil from the Waddell Ranch
properties was being sold under a competitive bid to a third party. The average price of gas (including natural gas liquids) decreased from $3.84 per Mcf in the first quarter of 2018 to $3.38 per Mcf in the first quarter of 2019 due to change in
overall market variables.  14




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Since the oil and gas sales attributable to the Royalties are based on an allocation formula that is
dependent on such factors as price and cost (including capital expenditures), the production amounts in the Royalties section of the above table do not provide a meaningful comparison. Oil sales volumes decreased and gas sales volumes decreased from
the Underlying Properties (as defined in the Trusts Annual Report on Form 10-K for the year ended December 31, 2018) for the applicable period in 2019 compared to 2018. Capital expenditures for drilling, remedial and maintenance activities on the Waddell Ranch properties during the first quarter of 2019 totaled $881,000as compared to $428,000 for the first quarter of 2018. ConocoPhillips has informed the Trustee that the 2019 capital expenditures budget has been approved at $6.6 million (gross) for the Waddell Ranch properties. The total amount of capital
expenditures for 2018 with regard to the Waddell Ranch properties totaled $4.3 million (gross). The Trustee has been advised that there were 0
workover wells completed, 0 new wells completed, 2 new wells in progress and 0 workover wells in progress during the three months ended March 31, 2019, as compared to 0 workover wells completed, 0 new wells completed, 0 new wells in progress
and 0 workover wells in progress for the three months ended March 31, 2018, on the Waddell Ranch properties. There were various facility projects in progress for the first quarter of 2019. Lease operating expenses and property taxes totaled $6.3 million (gross) for the first quarter of 2019, compared to $4.4 million (gross) for the
same period in 2018 on the Waddell Ranch properties due to increased maintenance work. Calculation of Royalty Income The Trusts royalty income is computed as a percentage of the net profit from the operation of the properties in which the Trust owns net overriding
royalty interests. These percentages of net profits are 75% and 95% in the case of the Waddell Ranch properties and the Texas Royalty properties, respectively. Royalty income received by the Trust for the three months ended March 31, 2019 and
2018, respectively, were computed as shown in the table below:  15




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THREE MONTHS ENDED MARCH 312019


2018WADDELLRANCHPROPERTIES


TEXASROYALTYPROPERTIES


WADDELLRANCHPROPERTIES


TEXASROYALTYPROPERTIESGross proceeds of sales from the Underlying PropertiesOil proceeds

$
6,428,640


$
3,145,079


$
9,560,542


$
3,761,961Gas proceeds


2,925,979



386,232



3,475,509



493,021Total


9,354,619



3,531,311



13,036,051



4,254,982Less:Severance tax:Oil


293,112



116,601



426,031



147,457Gas


73,510



13,473



120,493



19,289Lease operating expense and property tax:Oil and gas


6,345,337



23,015



4,429,523



(117,025
)Capital expenditures


881,148







427,595



Total


7,593,107



153,089



5,403,642



49,721Net profits


1,761,512



3,378,222



7,632,409



4,205,261Net overriding royalty interests


75
%


95
%


75
%


95
%Royalty income

$
1,321,134



3,209,311


$
5,724,307



3,994,998 Critical Accounting Policies and Estimates A disclosure of critical accounting policies and the more significant judgments and estimates used in the preparation of the Trusts financial statements
is included in Item 7 of the Trusts Annual Report on Form 10-K for the year ended December 31, 2018. There have been no significant changes to the critical accounting policies during the three
months ended March 31, 2019.  16




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Distributable Income Per Unit Basic distributable income per Unit is computed by dividing distributable income by the weighted average of Units outstanding. Distributable income per Unit
assuming dilution is computed by dividing distributable income by the weighted average number of Units and equivalent Units outstanding. The Trust had no equivalent Units outstanding for any period presented. Therefore, basic distributable income
per Unit and distributable income per Unit assuming dilution are the same. New Accounting Pronouncements There are no new accounting pronouncements that are expected to have significant impact on the Trusts financial statements.  Item 3.
Qualitative and Quantitative Disclosures About Market Risk Not applicable due to the Trusts status as a smaller reporting company.  Item 4.
Controls and Procedures On May 14, 2013, the Committee of Sponsoring Organizations of the Treadway Commission issued an updated version of its Internal Control  Integrated
Framework (the 2013 Framework) which helps organizations design, implement and evaluate the effectiveness of internal control concepts and simplify their use and application. 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s disclosure controls and procedures pursuant to Exchange Act Rules 13a-15 and 15d-15 based on the criteria established in the 2013 Framework. Based upon that evaluation, the Trustee concluded that the Trusts disclosure controls and procedures are effective in recording, processing,
summarizing and reporting, on a timely basis, information required to be disclosed by the Trust in the reports that it files or submits under the Securities Exchange Act of 1934 and are effective in ensuring that information required to be disclosed
by the Trust in the reports that it files or submits under the Securities Exchange Act of 1934 is accumulated and communicated to the Trustee to allow timely decisions regarding required disclosure. In its evaluation of disclosure controls and
procedures, the Trustee has relied, to the extent considered reasonable, on information provided by Burlington Resources Oil & Gas Company LP, the owner of the Waddell Ranch properties, and Riverhill Energy Corporation, the owner of the
Texas Royalty properties. There has not been any change in the Trusts internal control over financial reporting during the period covered by this report that has materially affected, or is reasonably likely to materially affect, the
Trusts internal control over financial reporting.  17




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PART IIOTHER INFORMATION  Item 1.
Legal Proceedings Not applicable.  Item 1A.
Risk Factors Risk factors relating to the Trust are contained in Item 1A of the Trusts Annual Report on Form 10-K for the
fiscal year ended December 31, 2018. No material change to such risk factors has occurred during the three months ended March 31, 2019. Items 2 through 5. Not applicable.  Item 6.
Exhibits  4.1

Permian Basin Amended and Restated Royalty Trust Indenture dated June 
20, 2014, between Southland Royalty Company (now Burlington Resources Oil 
& Gas Company LP) and The First National Bank of Fort Worth (now Simmons Bank), as Trustee, heretofore filed as Exhibit 4.1 to the Trusts Quarterly Report on Form 10-Q to the Securities and Exchange Commission
 for the quarterly period ended June 30, 2014, is incorporated herein by reference. *4.2

Net Overriding Royalty Conveyance (Permian Basin Royalty Trust) from Southland Royalty Company (now Burlington Resources Oil & Gas Company LP) to The First National Bank of Fort Worth (now Simmons Bank), as Trustee, dated
November 3, 1980 (without Schedules), heretofore filed as Exhibit (4)(b) to the Trusts Annual Report on Form 10-K to the Securities and Exchange Commission for the fiscal year ended
December 31, 1980, is incorporated herein by reference. * (P)4.3

Net Overriding Royalty Conveyance (Permian Basin Royalty Trust) from Southland Royalty Company (now Burlington Resources Oil & Gas Company LP) to The First National Bank of Fort Worth (now Simmons Bank), as Trustee, dated
November 3, 1980 (without Schedules), heretofore filed as Exhibit (4)(b) to the Trusts Annual Report on Form 10-K to the Securities and Exchange Commission for the fiscal year ended
December 31, 1980, is incorporated herein by reference. * (P)  18




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10.1

Registration Rights Agreement dated as of July 
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 10.1 to the Trusts Quarterly Report on Form 10-Q to the Securities
and Exchange Commission for the quarterly period ended June 30, 2004 is incorporated herein by reference. *10.2

Underwriting Agreement dated December 
15, 2005 among the Permian Basin Royalty Trust, Burlington Resources, Inc., Burlington Resources Oil 
& Gas L.P. and Lehman Brothers Inc. and Wachovia Capital Markets, LLC as representatives of the several underwriters, heretofore filed as Exhibit 10.1 to the Trusts current report on Form 8-K to the Securities
 and Exchange Commission filed on December 19, 2005, is incorporated herein by reference. *10.3

Underwriting Agreement dated August 
2, 2005 among the Permian Basin Royalty Trust, Burlington Resources, Inc., Burlington Resources Oil & Gas L.P. and Goldman Sachs 
& Co. and Lehman Brothers Inc. as representatives of the several underwriters, heretofore filed as Exhibit 10.1 to the Trusts current report on Form 8-K to the Securities and Exchange Commission filed on
August 8, 2005, is incorporated herein by reference. *10.4

Underwriting Agreement dated August 17, 2006, among Permian Basin Royalty Trust, ConocoPhillips, Burlington Resources Oil 
& Gas Company LP and Lehman Brothers Inc. and Wachovia Capital Markets, LLC as representatives of the several underwriters heretofore filed as Exhibit 10.1 to the Trusts current report on Form 8-K to the
 Securities and Exchange Commission filed on August 22, 2006, is incorporated herein by reference. *31.1

Certification by Ron E. Hooper, Senior Vice President Royalty Trust Management of Simmons Bank, Trustee of Permian Basin Royalty Trust, dated May 8, 2019 and submitted pursuant to Rule 13a-14(a)/15d-14(a) and pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.32.1

Certificate by Simmons Bank, Trustee of Permian Basin Royalty Trust, dated May 8, 2019 and submitted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. Section 1350).  *
A copy of this Exhibit is available to any Unit holder, at the actual cost of reproduction, upon written
request to the Trustee, Simmons Bank, 2911 Turtle Creek Boulevard, Suite 850, Dallas, Texas 75219. (P) Paper exhibits.  19




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SIGNATURES 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
thereunto duly authorized.  SIMMONS BANK,TRUSTEE FOR THEPERMIAN BASIN ROYALTY TRUSTBy:

/s/ RON E. HOOPERRon E. HooperSVP Royalty Trust Management
 Date: May 8, 2019 (The Trust has no directors or executive officers.)  20