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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 OR  ☐
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number: 1-10982   Cross Timbers Royalty Trust (Exact name of registrant as specified in its charter)    Texas

75-6415930(State or other jurisdiction of

(I.R.S. Employerincorporation or organization)

Identification No.) c/o The Corporate Trustee: Simmons Bank 2911 Turtle
Creek Blvd, Suite 850 Dallas, Texas 75219 (Address of principal executive offices) (Zip Code) (855) 588-7839 (Registrants telephone number, including area code) NONE (Former name,
former address and former fiscal year, if change since last report)   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  ☑  Title of each class

Trading symbol

Name of each exchange on which registeredUnits of Beneficial Interest

CRT

New York Stock Exchange Indicate the number of units of beneficial interest outstanding, as of the latest practicable date: Outstanding as of May 1, 2019 6,000,000




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CROSS TIMBERS ROYALTY TRUST FORM 10-Q FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2019 TABLE OF CONTENTS  PageGlossary of Terms


3PART I.

FINANCIAL INFORMATIONItem 1.

Financial Statements (Unaudited)


4Report of Independent Registered Public Accounting Firm


5Condensed Statements of Assets, Liabilities and Trust Corpus at March 31,
 2019 and December 31, 2018


6Condensed Statements of Distributable Income for the Three Months Ended March 31,
 2019 and 2018


7Condensed Statements of Changes in Trust Corpus for the Three Months Ended March 31,
 2019 and 2018


8Notes to Condensed Financial Statements


9Item 2.

Trustees Discussion and Analysis


13Item 3.

Quantitative and Qualitative Disclosures about Market Risk


17Item 4.

Controls and Procedures


17PART II.

OTHER INFORMATIONItem 1A.

Risk Factors


18Item 6.

Exhibits


18Signatures


19




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CROSS TIMBERS ROYALTY TRUST GLOSSARY OF TERMS The following
are definitions of significant terms used in this Form 10-Q:  Bbl

Barrel (of oil)Mcf

Thousand cubic feet (of natural gas)MMBtu

One million British Thermal Units, a common energy measurementnet proceeds

Gross proceeds received by XTO Energy from sale of production from the underlying properties, less applicable costs, as defined in the net profits interest conveyances.net profits income

Net proceeds multiplied by the applicable net profits percentage of 75% or 90%, which is paid to the Trust by XTO Energy. Net profits income is referred to as royalty income for income tax
purposes.net profits interest

An interest in an oil and gas property measured by net profits from the sale of production, rather than a specific portion of production. The following defined net profits interests were conveyed to the Trust from the underlying
properties:90% net profits interests  interests that entitle the Trust to receive 90% of the net proceeds from the underlying properties that are substantially all royalty or overriding royalty interests in Texas, Oklahoma and New
Mexico.75% net profits interests  interests that entitle the Trust to receive 75% of the net proceeds from the underlying properties that are working interests in Texas and Oklahoma.royalty interest (and overriding royalty interest)

A non-operating interest in an oil and gas property that provides the owner a specified share of production without any production expense or development costs.underlying properties

XTO Energys interest in certain oil and gas properties from which the net profits interests were conveyed. The underlying properties include royalty and overriding royalty interests in producing and nonproducing properties in
Texas, Oklahoma and New Mexico, and working interests in producing properties located in Texas and Oklahoma.working interest

An operating interest in an oil and gas property that provides the owner a specified share of production that is subject to all production expense and development costs.  3




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CROSS TIMBERS ROYALTY TRUST PART I  FINANCIAL INFORMATION  Item 1.
Financial Statements. The condensed financial statements included herein are presented, without audit, pursuant to the rules and regulations of the Securities and Exchange
Commission. 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. These condensed financial statements should 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 for a fair statement of the assets, liabilities and trust corpus of the Cross Timbers Royalty
Trust at March 31, 2019, and the distributable income and changes in trust corpus for the three-month periods ended March 31, 2019 and 2018, have been included. Distributable income for such interim periods is not necessarily indicative of
the distributable income for the full year. The condensed financial statements as of March 31, 2019, and for the three-month periods ended March 31, 2019 and 2018 have been subjected to a review by PricewaterhouseCoopers LLP, the
Trusts independent registered public accounting firm, whose report is included herein.  4




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Report of Independent Registered Public Accounting Firm To the Unitholders of Cross Timbers Royalty Trust and Simmons
Bank, Trustee Results of Review of Interim Financial Statements We have reviewed the accompanying condensed statement of assets, liabilities and trust corpus of Cross Timbers Royalty Trust (the Trust) as of
March 31, 2019, and the related condensed statements of distributable income and of changes in trust corpus for the three-month periods ended March 31, 2019 and 2018, including the related notes (collectively referred to as the
interim financial statements). Based on our reviews, we are not aware of any material modifications that should be made to the accompanying interim financial statements for them to be in conformity with the modified cash basis of
accounting described in Note 1. We have previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United
States), the statements of assets, liabilities and trust corpus as of December 31, 2018, and the related statements of distributable income and of changes in trust corpus for the year then ended (not presented herein), and in our report dated
March 12, 2019, which included a paragraph describing the modified cash basis of accounting, we expressed an unqualified opinion on those financial statements. In our opinion, the information set forth in the accompanying condensed statement of
assets, liabilities and trust corpus as of December 31, 2018, is fairly stated, in all material respects, in relation to the statements of assets, liabilities and trust corpus from which it has been derived. Basis for Review Results These interim financial
statements are the responsibility of the Trusts management. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Trust in
accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB. We conducted our review in accordance with the standards of the 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. Basis of Accounting As described in Note 1,
these financial statements were prepared on 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. /s/ PricewaterhouseCoopers LLP Dallas, Texas May 9, 2019  5




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CROSS TIMBERS ROYALTY TRUST  Condensed Statements of
Assets, Liabilities and Trust Corpus(Unaudited)  March 31,


December 31,2019


2018ASSETSCash and short-term investments

$
1,434,985


$
1,600,694Interest to be received


1,953



2,324Net profits interests in oil and gas properties  net (Note 1)


8,437,697



8,526,512$
9,874,635


$
10,129,530LIABILITIES AND TRUST CORPUSDistribution payable to unitholders

$
436,938


$
603,018Expense reserve (a)


1,000,000



1,000,000Trust corpus (6,000,000 units of beneficial interest authorized and outstanding)


8,437,697



8,526,512$
9,874,635


$
10,129,530  (a)
Expense reserve allows the Trustee to pay its obligations should it be unable to pay them out of the net
profits income. The reserve is currently funded at $1,000,000. The accompanying notes to condensed financial statements are an integral
part of these statements.  6




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CROSS TIMBERS ROYALTY TRUST  Condensed Statements of
Distributable Income (Unaudited)  Three Months EndedMarch 312019


2018Net profits income

$
1,335,885


$
2,277,499Interest income


6,771



3,460Total income


1,342,656



2,280,959Administration expense


259,572



250,679Cash reserves withheld for Trust expenses






Distributable income

$
1,083,084


$
2,030,280Distributable income per unit (6,000,000 units)

$
0.180514


$
0.338380 The accompanying notes to condensed financial statements are an integral part of these statements.  7




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CROSS TIMBERS ROYALTY TRUST  Condensed Statements of
Changes in Trust Corpus(Unaudited)  Three Months EndedMarch 312019


2018Trust corpus, beginning of period

$
8,526,512


$
9,311,334Amortization of net profits interests


(88,815
)


(190,740
)Distributable income


1,083,084



2,030,280Distributions declared


(1,083,084
)


(2,030,280
)Trust corpus, end of period

$
8,437,697


$
9,120,594 The accompanying notes to condensed financial statements are an integral part of these statements.  8




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CROSS TIMBERS ROYALTY TRUST  Notes to Condensed
Financial Statements(Unaudited)  1.
Basis of Accounting The financial statements of Cross Timbers Royalty Trust (the Trust) are prepared on the following basis and are not intended to
present financial position and results of operations in conformity with U.S. generally accepted accounting principles (GAAP):  
Net profits income recorded for a month is the amount computed and paid by XTO Energy Inc., the owner of the
underlying properties, to Simmons Bank, as trustee (the Trustee) for the Trust. XTO Energy is a wholly owned subsidiary of Exxon Mobil Corporation. Net profits income consists of net proceeds received by XTO Energy from the
underlying properties in the prior month, multiplied by net profit percentages of 90% for the 90% net profits interests, and 75% for the 75% net profits interests.  
Costs deducted in the calculation of net proceeds for the 90% net profits interests generally include
applicable taxes, transportation, marketing and legal costs. In addition to those costs, the 75% net profits interests include deductions for production expense, development costs, operating charges and other costs.  
Net profits income is computed separately for each of five conveyances under which the net profits interests
were conveyed to the Trust. If monthly costs exceed revenues for any conveyance, such excess costs must be recovered, with accrued interest, from future net proceeds of that conveyance and cannot reduce net proceeds from the other conveyances.  
Interest income and distribution payable to unitholders include interest earned on the previous months
investment.  
Trust expenses are recorded based on liabilities paid and cash reserves established by the Trustee for
liabilities and contingencies.  
Distributions to unitholders are recorded when declared by the Trustee. The Trusts financial statements differ from those prepared in conformity with U.S. GAAP because revenues are recognized when received
rather than accrued in the month of production, expenses are recognized when paid rather than when incurred, and certain cash reserves may be established by the Trustee for contingencies which would not be recorded under U.S. GAAP. This
comprehensive basis of accounting other than U.S. 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. Most accounting pronouncements apply to entities whose financial statements are prepared in accordance with
U.S. GAAP, directing such entities to accrue or defer revenues and expenses in a period other than when such revenues were received or expenses were paid. Because the Trusts financial statements are prepared on the modified cash basis, as
described above, most accounting pronouncements are not applicable to the Trusts financial statements.  9




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Impairment of Net Profits Interests The Trustee reviews the Trusts net profits interests (NPI) in oil and gas properties for impairment whenever events or
circumstances indicate that the carrying value of the NPI may not be recoverable. In general, the Trustee does not view temporarily low prices as an indication of impairment. The markets for crude oil and natural gas have a history of significant
price volatility and though prices will occasionally drop significantly, industry prices over the long term will continue to be driven by market supply and demand. If events and circumstances indicate the carrying value may not be recoverable,
the Trustee would use the estimated undiscounted future net cash flows from the NPI to evaluate the recoverability of the Trust assets. If the undiscounted future net cash flows from the NPI are less than the NPI carrying value, the Trust would
recognize an impairment loss for the difference between the NPI carrying value and the estimated fair value of the NPI. The determination as to whether the NPI is impaired requires a significant amount of judgment by the Trustee and is based on the
best information available to the Trustee at the time of the evaluation. There was no impairment of the NPI during the quarter ended March 31, 2019. Net profits interests in oil and gas properties The initial carrying value of the net profits interests of $61,100,449 represents XTO Energys historical net book value for the interests
on February 12, 1991, the creation date of the Trust. Amortization of the net profits interests is calculated on a unit-of-production basis and is charged directly
to trust corpus. Accumulated amortization was $52,662,752 as of March 31, 2019 and $52,573,937 as of December 31, 2018.  2.
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 tax at the trust level. Accordingly, no provision for income taxes has been made in the financial statements. The unitholders are considered 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 unitholder at the time such income is received or accrued by the Trust and not when distributed by the Trust. Impairments recorded for book purposes will not result in a
loss for tax purposes for the unitholders until the loss is recognized. All revenues from the Trust are from sources within Texas,
Oklahoma or New Mexico. Because it distributes all of its net income to unitholders, the Trust has not been taxed at the trust level in New Mexico or Oklahoma. While the Trust has not owed tax, the Trustee is required to file an Oklahoma income tax
return reflecting the income and deductions of the Trust attributable to properties located in that state, along with a schedule that includes information regarding distributions to unitholders. Oklahoma and New Mexico tax the income of nonresidents
from real property located within those states, and the Trust has been advised by counsel that such states will tax nonresidents on income from the net profits interests located in those states. Oklahoma and New Mexico also impose a corporate income
tax that may apply to unitholders organized as corporations (subject to certain exceptions for S corporations and limited liability companies, depending on their treatment for federal tax purposes). 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 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  10




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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 unitholder that is a taxable entity under the Texas
franchise tax will generally be required to include its Texas 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. The Trust could potentially be required to bear a
portion of the amounts paid by XTO to resolve the royalty claims asserted in the Chieftain class action lawsuit. For information on contingencies, see Note 3 to Condensed Financial Statements. In the event that the Trust is determined to be
responsible for such costs, XTO may deduct the costs in its calculation of the net profits income payable to the Trust from the applicable net profits interests. Thus, for unitholders, these costs will be reflected through a reduction in net profits
income received from the Trust and thus in a reduction in the gross royalty income reported by and taxable to the unitholders. In the event that the Trustee objects to such claimed reductions, the Trustee may also incur legal fees in representing
the Trusts interests. For unitholders, such costs would be reflected through an increase in the Trusts administrative expenses, which would be deductible by unitholders in determining the net royalty income from the Trust. However, as
discussed in Note 3 to Condensed Financial Statements, the Trustee and XTO have entered an agreement regarding the timing of XTO making the accounting entries to allocate to the Trust its proportional share of the Chieftain settlement. Each unitholder should consult his or her own tax advisor regarding income tax requirements, if any, applicable to such persons
ownership of Trust units. Unitholders should consult the Trusts latest annual report on Form
10-K for a more detailed discussion of federal and state tax matters.  3.
Contingencies Litigation A federal
district court approved the settlement of a royalty class action lawsuit against XTO Energy Inc. (Chieftain Royalty Company v. XTO Energy Inc.) in March 2018. In July 2018, the class plaintiffs submitted their plan to allocate the
settlement funds among members of the class. After that plan of allocation was approved, XTO Energy advised the Trustee that, based upon that plan, approximately $40,000 should be allocated to the Trust as additional production costs. The Trustee has objected to similar claims relating to the Chieftain settlement with respect to another trust for which it serves as
trustee (the Hugoton Royalty Trust) pursuant to a demand for arbitration styled Simmons Bank (successor to Southwest Bank and Bank of America, N.A.) vs. XTO Energy Inc. through the American Arbitration Association seeking a declaratory
judgment that the Chieftain settlement is not a production cost and that XTO Energy is prohibited from charging the settlement as a production cost under the conveyance or otherwise reducing the Hugoton Royalty Trusts payments now or in
the future as a result of the Chieftain litigation. Therefore, the Trustee and XTO have agreed that XTO will defer making the accounting entries to allocate to the Trust its proportional share of the Chieftainsettlement until the
panel in the pending arbitration issues its final award on the Trustees request for a declaratory judgment. The Trustee intends to review any claimed reductions in payment to the Trust based on the facts and circumstances of the settlement.  11




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Other Several states have enacted legislation requiring state income tax withholding from payments made to nonresident recipients of oil and gas
proceeds. After consultation with its tax counsel, the Trustee believes that it is not required to withhold on payments made to the unitholders. However, regulations are subject to change by the various states, which could change this conclusion.
Should amounts be withheld on payments made to the Trust or the unitholders, distributions to the unitholders would be reduced by the required amount, subject to the filing of a claim for refund by the Trust or unitholders for such amount.  4.
Excess Costs If monthly costs exceed revenues for any conveyance, such excess costs must be recovered, with accrued interest, from future net proceeds of
that conveyance and cannot reduce net proceeds from other conveyances. The following summarizes excess costs activity, cumulative
excess costs balances and accrued interest to be recovered by conveyance:  UnderlyingTX WI


OK WI


TotalCumulative excess costs remaining at 12/31/18

$
1,433,870


$
123,977


$
1,557,847Net excess costs (recovery) for the quarter ended 3/31/19


(100,870
)


(123,977
)


(224,847
)Cumulative excess costs remaining at 3/31/19


1,333,000







1,333,000Accrued interest at 3/31/19


267,214







267,214Total remaining to be recovered at 3/31/19

$
1,600,214


$



$
1,600,214NPITX WI


OK WI


TotalCumulative excess costs remaining at 12/31/18

$
1,075,403


$
92,983


$
1,168,386Net excess costs (recovery) for the quarter ended 3/31/19


(75,652
)


(92,983
)


(168,635
)Cumulative excess costs remaining at 3/31/19


999,751







999,751Accrued interest at 3/31/19


200,411







200,411Total remaining to be recovered at 3/31/19

$
1,200,162


$



$
1,200,162 For the quarter ended March 31, 2019, lower production expenses resulted in the partial recovery of
excess costs on properties underlying the Texas working interests. Lower development costs resulted in the full recovery of excess costs, plus accrued interest of $1,116 ($837 NPI) on properties underlying the Oklahoma working interests. Underlying cumulative excess costs for the Texas working interest conveyance remaining as of March 31, 2019 totaled $1.6 million,
including accrued interest of $0.3 million.  12




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5.
XTO Energy Inc. In computing net proceeds for the 75% net profits interests, XTO Energy deducts an overhead charge as reimbursement for costs associated with
monitoring these interests. This monthly overhead charge at March 31, 2019 was $39,833 ($29,875 NPI) and is subject to annual adjustment based on an oil and gas industry index. XTO Energy deducts a monthly overhead charge for reimbursement of administrative expenses as operator of the Hewitt Unit, which is one of
the properties underlying the Oklahoma 75% net profits interests. As of March 31, 2019, this monthly charge was approximately $28,000 ($21,000 NPI) and is subject to annual adjustment based on an oil and gas industry index. Other than
this property, XTO Energy and ExxonMobil do not operate or control any of the underlying properties or related working interests.  Item 2.
Trustees Discussion and Analysis. The following discussion should be read in conjunction with the Trustees discussion and analysis contained in the Trusts 2018 Annual Report on Form 10-K, as well as the condensed financial statements and notes thereto included in this Quarterly Report on Form 10-Q. The Trusts Annual Report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and all amendments to those reports are available on the
Trusts web site at www.crt-crosstimbers.com. Distributable Income For the quarter ended March 31, 2019, net profits income was $1,335,885 compared to $2,277,499 for first quarter 2018. This 41% decrease in net profits
income is primarily the result of decreased oil and gas production ($0.8 million), decreased oil and gas prices ($0.4 million) and increased overhead ($0.1 million), partially offset by decreased taxes, transportation and other
($0.2 million), decreased production expenses ($0.2 million). See Net Profits Income below. After considering interest income of
$6,771 and administration expense of $259,572, distributable income for the quarter ended March 31, 2019 was $1,083,084, or $0.180514 per unit of beneficial interest. Administration expense for the quarter increased $8,893 from the prior year
quarter. For first quarter 2018, distributable income was $2,030,280, or $0.338380 per unit. Distributions to unitholders for the quarter ended March 31, 2019 were:  Record Date

Payment Date

Distributionper UnitJanuary 31, 2019

February 14, 2019

$
0.062202February 28, 2019

March 14, 2019


0.045489March 29, 2019

April 12, 2019


0.072823$
0.180514  13




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Net Profits Income Net profits income is recorded when received by the Trust, which is the month following receipt by XTO Energy and generally two months after oil production and
three months after gas production. Net profits income is generally affected by three major factors:  
oil and gas sales volumes,  
oil and gas sales prices, and  
costs deducted in the calculation of net profits income. Because properties underlying the 90% net profits interests are primarily royalty and overriding royalty interests, the calculation of net profits income from
these interests includes deductions for production and property taxes, legal costs, and marketing and transportation charges. In addition to these costs, the calculation of net profits income from the 75% net profits interests includes deductions
for production expense, development costs and overhead since the related underlying properties are working interests.  14




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The following is a summary of the calculation of net profits income received by the Trust:  Three MonthsEnded March 31(a)


Increase(Decrease)2019


2018Sales VolumesOil (Bbls) (b)Underlying properties


47,174



52,718



(11%)Average per day


513



573



(10%)Net profits interests


12,347



19,217



(36%)Gas (Mcf) (b)Underlying properties


282,549



443,182



(36%)Average per day


3,071



4,817



(36%)Net profits interests


237,595



392,287



(39%)Average Sales PricesOil (per Bbl)

$
48.88


$
54.17



(10%)Gas (per Mcf)

$
4.22


$
4.61



(8%)RevenuesOil sales

$
2,305,750


$
2,855,508



(19%)Gas sales


1,191,352



2,041,271



(42%)Total Revenues


3,497,102



4,896,779



(29%)CostsTaxes, transportation and other


560,232



755,666



(26%)Production expense (c)


990,328



1,132,037



(13%)Development costs


206,508



266,838



(23%)Excess costs (d)


225,963



150,540



50%Total Costs


1,983,031



2,305,081



(14%)Net Proceeds

$
1,514,071


$
2,591,698



(42%)Net Profits Income

$
1,335,885


$
2,277,499



(41%)  (a)
Because of the interval between time of production and receipt of royalty income by the Trust, oil and
gas sales for the quarter ended March 31 generally represent oil production for the period November through January and gas production for the period October through December.  (b)
Oil and gas sales volumes are allocated to the net profits interests by dividing Trust net cash inflows
by average sales prices. As oil and gas prices change, the Trusts allocated production volumes are impacted as the quantity of production necessary to cover expenses changes inversely with price. As such, the underlying property production
volume changes may not correlate with the Trusts allocated production volumes in any given period. Therefore, comparative discussion of oil and gas sales volumes is based on the underlying properties.  (c)
Production expense includes an overhead charge which is deducted and retained by the operator. XTO
Energy deducts an overhead charge as reimbursement for costs associated with monitoring these interests. See Note 5 to Condensed Financial Statements.  (d)
See Note 4 to Condensed Financial Statements.  15




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The following are explanations of significant variances on the underlying properties from first quarter 2018
to first quarter 2019: Sales Volumes Oil Oil sales volumes decreased 11% from first quarter 2018 to first quarter 2019 primarily because of natural production decline and the timing of cash
receipts. Gas Gas sales volumes decreased 36% from
first quarter 2018 to first quarter 2019 primarily because of the timing of cash receipts and natural production decline. The estimated rate of natural
production decline on the underlying oil and gas properties is approximately 6% to 8% a year. Sales Prices Oil The average oil price decreased 10% to $48.88 per Bbl
for the first quarter. The first quarter 2019 oil price is primarily related to production from November 2018 through January 2019, when the average NYMEX price was $52.39 per Bbl. Gas Gas prices for the first quarter decreased 8% to
$4.22 per Mcf. The first quarter 2019 gas price is primarily related to production from October through December 2018, when the average NYMEX price was $3.64 per MMBtu. Costs Taxes, Transportation and Other Taxes, transportation and other costs decreased 26% for the first quarter primarily because of decreased other deductions and production taxes related to lower
oil and gas revenues, partially offset by increased property taxes. Production Expense Production expense decreased 13% for the first quarter primarily because of timing of charges, partially offset by reporting of expense equipment purchases
previously reported in development costs. Development Costs Development costs related to properties underlying the 75% net profits interests decreased 23% for the first quarter primarily because of expense equipment
purchases reported in production expense which were previously reported in development costs.  16




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Excess Costs If monthly costs exceed revenues for any conveyance, such excess costs must be recovered, with accrued interest, from future net proceeds of that conveyance
and cannot reduce net proceeds from any other conveyance. Underlying cumulative excess costs for the Texas working interest conveyance remaining as of March 31, 2019 totaled $1.6 million, including accrued interest of $0.3 million.
For further information on excess costs, see Note 4 to Condensed Financial Statements. Contingencies For information on contingencies, see Note 3 to Condensed Financial Statements. Forward-Looking Statements Statements in this report
relating to future plans, predictions, production, excess costs, litigation or arbitration, events or regulatory decisions are forward-looking statements. All statements other than statements of historical fact included in this Form 10-Q including, without limitation, statements regarding the net profits interests, underlying properties, development activities, annual or monthly development, production and other costs and expenses, estimated
rates of natural production decline, oil and gas prices and differentials to NYMEX prices, distributions to unitholders, and industry and market conditions, are forward-looking statements that are subject to risks and uncertainties, including those
detailed in Part I, Item 1A of the Trusts Annual Report on Form 10-K for the year ended December 31, 2018, which is incorporated by this reference as though fully set forth herein. XTO Energy and
the Trustee assume no duty to update these statements as of any future date.  Item 3.
Quantitative and Qualitative Disclosures about Market Risk. Not applicable. Upon qualifying as a smaller reporting company, this information is no longer required.  Item 4.
Controls and Procedures. As of the end of the period covered by this report, the Trustee carried out an evaluation of the effectiveness of the Trusts disclosure controls and
procedures pursuant to Exchange Act Rules 13a-15 and 15d-15. 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 XTO Energy. 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 1A.
Risk Factors. There have been no material changes in the risk factors disclosed under Part I, Item 1A of the Trusts Annual Report on Form 10-K for the year ended December 31, 2018.  Item 6.
Exhibits.  (31)

Rule 13a-14(a)/15d-14(a) Certification(32)

Section 1350 Certification(99)

Items 1A, 7
and 7A to the Annual Report on Form 
10-K for Cross Timbers Royalty Trust filed with the Securities and Exchange Commission on March 12, 2019 (incorporated herein by reference)   18




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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.  CROSS TIMBERS ROYALTY TRUSTBy SIMMONS BANK, TRUSTEEBy

/S/ NANCY WILLISNancy WillisVice PresidentEXXON MOBIL CORPORATIONDate: May 9, 2019



By

/S/ DAVID LEVYDavid LevyVice President  Upstream Business Services   19