The following discussion and analysis should be read in conjunction with our
consolidated financial statements and notes thereto presented in this Annual
Report. The following discussion contains "forward-looking statements" that
reflect our future plans, estimates, beliefs, and expected performance. Actual
results and the timing of events may differ materially from those contained in
these forward-looking statements due to a number of factors. See "  Item 1A.
Risk Factors  " and "  Cautionary Statement Regarding Forward-Looking
Statements  ."

Overview



We are a publicly traded Delaware limited partnership formed by Diamondback to
own and acquire mineral and royalty interests in oil and natural gas properties
primarily in the Permian Basin. We operate in one reportable segment.

As of December 31, 2021, our General Partner held a 100% General Partner interest in us, and Diamondback, either directly or through one of its subsidiaries, owned 731,500 common units and beneficially owned all of our 90,709,946 outstanding Class B units, representing approximately 54% of our total units outstanding. Diamondback also owns and controls our General Partner.



The following discussion includes a comparison of our results of operations,
including changes in our operating income, and liquidity and capital resources
for fiscal year 2021 and fiscal year 2020. A discussion of changes in our
results of operations from fiscal year 2019 to fiscal year 2020 has been omitted
from this report, but may be found in   "Item 7. Management's Discussion and
Analysis of Financial Condition and Results of Operations" of our Annual Report
on Form 10-K for the fiscal year ended December 31, 20    20  , filed with the
SEC on February 25, 2021, and is incorporated by reference in this report from
such prior Annual Report on Form 10-K.

2021 Transactions and Recent Developments

COVID-19 and Effects on Commodity Prices



In early March 2020, oil prices dropped sharply and continued to decline,
briefly reaching negative levels, as a result of multiple factors affecting the
supply and demand in global oil and natural gas markets, including (i) actions
taken by OPEC members and other exporting nations impacting commodity price and
production levels and (ii) a significant decrease in demand due to the COVID-19
pandemic. Demand for oil and natural gas increased during 2021, as many
restrictions on conducting business implemented in response to the COVID-19
pandemic were lifted due to improved treatments and availability of vaccinations
in the U.S. and globally. As a result, oil and natural gas market prices have
improved during 2021 in response to the increase in demand. During 2021 and
2020, the posted price for West Texas intermediate light sweet crude oil, or
NYMEX WTI, has ranged from $(37.63) to $84.65 Bbl, and the NYMEX Henry Hub price
of natural gas has ranged from $1.48 to $6.31 per MMBtu. On January 18, 2022,
the closing NYMEX WTI price for crude oil was $85.43 per Bbl and the closing
NYMEX Henry Hub price of natural gas was $4.28 per MMBtu. The emergence of the
Delta COVID-19 variant in the latter part of 2021 and the subsequent surge of
the highly transmissible Omicron variant, however, continued to contribute to
economic and pricing volatility, as industry and market participants evaluated
industry conditions and production outlook. Further, on January 4, 2021, OPEC
and its non-OPEC allies, known collectively as OPEC+, agreed to continue their
program (commenced in August 2021) of gradual monthly output increases in
February 2022, raising its output target by 400,000 Bbl per day, which move is
expected to further boost oil supply in response to rising demand. In its report
issued on February 10, 2022, OPEC noted its expectation that world oil demand
will rise by 4.15 million Bbls per day in 2022, as the global economy continues
to post a strong recovery from the COVID-19 pandemic. Although this demand
outlook is expected to underpin oil prices, already seen at a seven-year high in
February 2022, we cannot predict any future volatility in commodity prices or
demand for crude oil.

Although demand for oil and natural gas and commodity prices have recently
increased, Diamondback and certain of our other operators have kept production
on our acreage relatively flat during 2021, using excess cash flow for debt
repayment and/or return to their stockholders rather than expanding their
drilling programs. Diamondback also indicated that it intends to continue
exercising capital discipline and seeks to maintain its fourth quarter 2021 exit
oil production flat in 2022. We cannot reasonably predict whether production
levels will remain at current levels or the impact the full extent of the events
above and subsequent recovery may have on our industry and our business.

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Due to the improved commodity prices and industry conditions, based on the
results of the quarterly ceiling tests, we were not required to record an
impairment on our proved oil and natural gas interests during the year ended
December 31, 2021. If commodity prices fall below current levels, we may be
required to record impairments in future periods and such impairments could be
material. Further, if commodity prices decrease, our production, proved reserves
and cash flows may be adversely impacted. Our business may also be adversely
impacted by any pipeline capacity and storage constraints.

Acquisitions and Divestitures Update

Swallowtail Acquisition



On October 1, 2021, we completed the Swallowtail Acquisition for approximately
15.25 million of our common units and approximately $225.3 million in cash. The
mineral and royalty interests acquired represent approximately 2,313 net royalty
acres primarily in the Northern Midland Basin, of which approximately 62% are
operated by Diamondback. We funded the cash portion of the purchase price for
the Swallowtail Acquisition through a combination of cash on hand and
approximately $190.0 million of borrowings under the Operating Company's
revolving credit facility. The Swallowtail Acquisition has an effective date of
August 1, 2021.

Other 2021 Acquisitions

Additionally during the year ended December 31, 2021, we acquired, from
unrelated third party sellers, mineral and royalty interests representing 1,277
gross (392 net royalty) acres in the Permian Basin for an aggregate purchase
price of approximately $55.1 million, after post-closing adjustments. We funded
these acquisitions with cash on hand and borrowings under the Operating
Company's revolving credit facility.

As a result of the Swallowtail Acquisition and other acquisitions, our footprint of mineral and royalty interests increased to a total of 27,027 net royalty acres at December 31, 2021.

Divestiture



In the first quarter of 2022, we divested 325 net royalty acres of third party
operated acreage located entirely in Upton and Reagan counties in the Midland
Basin for an aggregate sales price of $29.3 million, subject to post-closing
adjustments.

Cash Distribution Update

On February 16, 2022, the board of directors of our General Partner declared a
cash distribution for the three months ended December 31, 2021 of $0.47 per
common unit, maintaining our distribution from the second quarter of 2021 of 70%
of cash available for distribution. The distribution is payable on March 11,
2022 to eligible common unitholders of record at the close of business on March
4, 2022. We expect to continue to generate robust amounts of free cash flow and
subsequently use that cash to both reduce debt and increase our return on
capital to unitholders.

Production and Operational Update



Our business has rebounded strongly from the unprecedented volatility
experienced throughout 2020 as commodity prices have increased and activity has
returned to our acreage. There are currently 39 rigs operating on our mineral
and royalty acreage, six of which are operated by Diamondback. Looking ahead,
with minimal capital requirements and limited operating costs, royalty companies
are expected to have an advantage in 2022 and not face inflationary cost
pressures. As our defensive hedges placed in 2020 rolled off at the end of 2021,
our industry leading cash margins will now be further enhanced by strength in
commodity prices. Our production and free cash flow outlook is expected to be
driven by Diamondback's continued focus on developing our acreage, as well as
our exposure to other well-capitalized operators in the Permian Basin. We
continue to have a high level of visibility into Diamondback's expected forward
development plan and expect additional upside from third-party operators that
continue to exceed our conservative activity and timing assumptions, all of
which is expected to bolster oil production for us not only for the next several
quarters, but in the coming years.

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The following table summarizes our gross well information as of the dates
indicated:

                                                                                        Third Party
                                                         Diamondback Operated            Operated               Total

Horizontal wells turned to production (fourth quarter 2021)(1): Gross wells

                                                                 40                     139                179
Net 100% royalty interest wells                                            3.7                     1.4                5.1
Average percent net royalty interest                                    9.3  %                  1.0  %             2.9  %

Horizontal wells turned to production (year ended
December 31, 2021)(2):
Gross wells                                                                158                     562                720
Net 100% royalty interest wells                                           10.2                     3.8               14.0
Average percent net royalty interest                                    6.5  %                  0.7  %             1.9  %

Horizontal producing well count (fourth quarter 2021): Gross wells

                                                              1,335                   4,371              5,706
Net 100% royalty interest wells                                          101.8                    59.4              161.2
Average percent net royalty interest                                    7.6  %                  1.4  %             2.8  %

Horizontal active development well count (as of January 27, 2022)(3): Gross wells

                                                                106                     512                618
Net 100% royalty interest wells                                            6.8                     3.8               10.6
Average percent net royalty interest                                    6.4  %                  0.7  %             1.7  %

Line of sight wells (as of January 27, 2022)(4):
Gross wells                                                                135                     428                563
Net 100% royalty interest wells                                            7.8                     3.8               11.6
Average percent net royalty interest                                    5.8  %                  0.9  %             2.1  %


(1) Average lateral length of 10,048.
(2) Average lateral length of 9,823.
(3) The total 618 gross wells currently in the process of active development are
those wells that have been spud and are expected to be turned to production
within approximately the next six to eight months.
(4) The total 563 line-of-sight wells are those that are not currently in the
process of active development, but for which Viper has reason to believe that
they will be turned to production within approximately the next 15 to 18 months.
The expected timing of these line-of-sight wells is based primarily on
permitting by third party operators or Diamondback's current expected completion
schedule. Existing permits or active development of our net royalty acreage does
not ensure that those wells will be turned to production given the volatility in
oil prices.

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Table of Content

Results of Operations



The following table summarizes our income and expenses for the periods
indicated:

                                                                                Year Ended December 31,
                                                                                2021                  2020
                                                                                     (In thousands)


Operating income:
Oil income                                                               $    397,513             $  217,859
Natural gas income                                                             49,197                  9,024
Natural gas liquids income                                                     54,824                 20,098
Royalty income                                                                501,534                246,981
Lease bonus income                                                              2,763                  2,585

Other operating income                                                            620                  1,060
Total operating income                                                        504,917                250,626
Costs and expenses:
Production and ad valorem taxes                                                32,558                 19,844

Depletion                                                                     102,987                100,501
Impairment                                                                          -                 69,202
General and administrative expenses                                             7,800                  8,165

Total costs and expenses                                                      143,345                197,712
Income (loss) from operations                                                 361,572                 52,914
Other income (expense):
Interest expense, net                                                         (34,044)               (33,000)

Gain (loss) on derivative instruments, net                                    (69,409)               (63,591)
Gain (loss) on revaluation of investment                                            -                 (8,556)
Other income, net                                                                  79                  1,286
Total other expense, net                                                     (103,374)              (103,861)
Income (loss) before income taxes                                             258,198                (50,947)
Provision for (benefit from) income taxes                                       1,521                142,466
Net income (loss)                                                             256,677               (193,413)
Net income (loss) attributable to non-controlling interest                    198,738                 (1,109)
Net income (loss) attributable to Viper Energy Partners LP               $     57,939             $ (192,304)



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The following table summarizes our production data, average sales prices and
average costs for the periods indicated:

                                                                        Year Ended December 31,
                                                                       2021                 2020
                                                                            (In thousands)
Production data:
Oil (MBbls)                                                              6,068               5,956
Natural gas (MMcf)                                                      13,672              11,486
Natural gas liquids (MBbls)                                              1,913               1,848
Combined volumes (MBOE)(1)                                              10,260               9,718

Average daily oil volumes (BO/d)                                        16,625              16,272
Average daily combined volumes (BOE/d)                                  28,110              26,551

Average sales prices:
Oil ($/Bbl)                                                       $      65.51          $    36.58
Natural gas ($/Mcf)                                               $       3.60          $     0.79
Natural gas liquids ($/Bbl)                                       $      28.66          $    10.88
Combined ($/BOE)(2)                                               $      48.88          $    25.41

Oil, hedged ($/Bbl)(3)                                            $      50.25          $    32.00
Natural gas, hedged ($/Mcf)(3)                                    $       3.60          $     0.02
Natural gas liquids ($/Bbl)(3)                                    $      28.66          $    10.88
Combined price, hedged ($/BOE)(3)                                 $      

39.86 $ 21.71



Average costs ($/BOE):
Production and ad valorem taxes                                   $       

3.17 $ 2.04



General and administrative - cash component(4)                            0.65                0.71
Total operating expense - cash                                    $       

3.82 $ 2.75



General and administrative - non-cash unit compensation expense   $       0.11          $     0.13
Interest expense, net                                             $       3.32          $     3.40
Depletion                                                         $      10.04          $    10.34


(1)Bbl equivalents are calculated using a conversion rate of six Mcf per one
Bbl.
(2)Realized price net of all deducts for gathering, transportation and
processing.
(3)Hedged prices reflect the impact of cash settlements on our matured commodity
derivative transactions on our average sales prices.
(4)Excludes non-cash unit compensation for the respective periods presented.

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Comparison of the Years Ended December 31, 2021 and 2020

Royalty Income

Our royalty income is a function of oil, natural gas liquids and natural gas production volumes sold and average prices received for those volumes.



Royalty income increased $254.6 million during the year ended December 31, 2021
compared to 2020. Higher average prices contributed approximately $248.0 million
of the total increase, due largely to the recovery in oil prices, and to a
lesser extent, natural gas and natural gas liquids prices from historic lows
experienced in the 2020 as discussed in "-   Overview  ."

The 6% increase in production volumes during the year ended December 31, 2021
compared to 2020 contributed approximately $6.5 million of the total increase in
royalty income. The increase in production was primarily attributable to new
well additions between periods.

Production and Ad Valorem Taxes

The following table presents production and ad valorem taxes for the years ended December 31, 2021 and 2020:



                                                                                   Year Ended December 31,
                                                          2021                                                                2020
                                    Amount                                 Percentage of                Amount                                 Percentage of
                                (In thousands)          Per BOE           Royalty Income            (In thousands)          Per BOE           Royalty Income
Production taxes              $        25,966          $  2.53                       5.2  %       $        12,101          $  1.25                       4.9  %
Ad valorem taxes                        6,592             0.64                       1.3                    7,743             0.79                       3.1
Total production and ad
valorem taxes                 $        32,558          $  3.17                       6.5  %       $        19,844          $  2.04                       8.0  %



In general, production taxes are directly related to production revenues and are
based upon current year commodity prices. Production taxes as a percentage of
royalty income for 2021 remained consistent with 2020. Ad valorem taxes are
based, among other factors, on property values driven by prior year commodity
prices. Ad valorem taxes as a percentage of royalty income for the same period
in 2021 compared to 2020 decreased primarily due to improved average sales
prices, while the tax valuation of oil and natural gas interests declined. We
expect production and ad valorem taxes for 2022 to be approximately 7% to 8% of
revenue.

Depletion

The $2.5 million, or 2%, increase in depletion expense for 2021 compared to 2020
was due primarily to an increase in production, partially offset by a decrease
in the depletion rate to $10.04 from $10.34, respectively. The rate decrease
largely resulted from higher SEC oil prices utilized in the reserve calculations
in the 2021 period, lengthening the economic life of the reserve base and
resulting in higher projected remaining reserve volumes on our wells.

Impairment

There was no impairment recorded for the year ended December 31, 2021. We recorded an impairment expense of $69.2 million as a result of the decline in commodity prices for the year ended December 31, 2020.

Net Interest Expense



  Net interest expense for 2021 and 2020 was $34.0 million and $33.0 million,
respectively. The increase of $1.0 million was due to increased borrowings
during 2021 compared to 2020, as approximately $190.0 million of the Swallowtail
Acquisition was funded with additional borrowings under the Operating Company's
revolving credit facility in October 2021 as discussed in "-  2    021

Transactions and Recent Developments " above. This increase was partially offset by repayments of borrowings under the Operating Company's revolving credit facility and the Notes.


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Derivative Instruments

The following table shows the net gain (loss) on derivative instruments and the net cash receipts (payments) on derivatives for the periods presented:



                                                    Year Ended December 31,
                                                      2021

2020


                                                        (In thousands)

Gain (loss) on derivative instruments $ (69,409) $ (63,591) Net cash receipts (payments) on derivatives $ (92,585) $ (36,998)





We recorded losses on our derivative instruments for the year ended December 31,
2021 and 2020 primarily due to market prices being higher than the strike prices
on our derivative contracts. We are required to recognize all derivative
instruments on our balance sheet as either assets or liabilities measured at
fair value. We have not designated our derivative instruments as hedges for
accounting purposes. As a result, we mark our derivative instruments to fair
value and recognize the cash and non-cash changes in fair value on derivative
instruments in our condensed consolidated statements of operations under the
line item captioned "Gain (loss) on derivative instruments, net."

Gain (Loss) on Revaluation of Investment



We did not record a gain or loss on revaluation of investment for the year ended
December 31, 2021, as we fully divested our equity interest in a limited
partnership during 2020. We recorded loss on revaluation of investment of $8.6
million for the year ended December 31, 2020 primarily due to recording the
remaining investment at its fair value during that period.

Provision for (Benefit from) Income Taxes



We recorded an income tax expense of $1.5 million and $142.5 million for the
years ended December 31, 2021 and 2020, respectively. The change in our income
tax provision was primarily due to the impact of recording a valuation allowance
on our deferred tax assets during the first quarter of 2020. The total income
tax provision for the year ended December 31, 2021 differed from amounts
computed by applying the federal statutory tax rate to pre-tax income for the
period primarily due to net income attributable to the non-controlling interest
and the impact of maintaining a valuation allowance on our deferred tax assets.
See Note 9-  Income Taxes   of the notes to the consolidated financial
statements included elsewhere in this Annual Report for further details.

Liquidity and Capital Resources

Overview of Sources and Uses of Cash



As we pursue our business and financial strategy, we regularly consider which
capital resources, including cash flow and equity and debt financings, are
available to meet our future financial obligations and liquidity requirements.
Our future ability to grow proved reserves will be highly dependent on the
capital resources available to us. Our primary sources of liquidity have been
cash flows from operations, proceeds from sales of non-core assets and
investments, equity and debt offerings and borrowings under the Operating
Company's credit agreement. Our primary uses of cash have been distributions to
our unitholders, repayment of debt, capital expenditures for the acquisition of
our mineral interests and royalty interests in oil and natural gas properties
and repurchases of our common units. At December 31, 2021, we had approximately
$235.4 million of liquidity consisting of $39.4 million in cash and cash
equivalents and $196.0 million available under the Operating Company's credit
agreement.

Our working capital requirements are supported by our cash and cash equivalents
and the Operating Company's credit agreement. We may draw on the Operating
Company's credit agreement to meet short-term cash requirements, or issue debt
or equity securities as part of our longer-term liquidity and capital management
program. Because of the alternatives available to us as discussed above, we
believe that our short-term and long-term liquidity are adequate to fund not
only our current operations, but also our near-term and long-term funding
requirements including our acquisitions of mineral and royalty interests,
distributions, debt service obligations and repayment of debt maturities, common
unit repurchase program and any amounts that may ultimately be paid in
connection with contingencies.

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In order to mitigate volatility in oil and natural gas prices, we have entered
into commodity derivative contracts as discussed further in   Item 7A.
Quantitative and Qualitative Disclosures About Market Risk-Commodity Price
Risk  .

Continued prolonged volatility in the capital, financial and, or credit markets
due to the COVID-19 pandemic, the depressed commodity markets and, or adverse
macroeconomic conditions may limit our access to, or increase our cost of,
capital or make capital unavailable on terms acceptable to us or at all.
Although the Partnership expects that its sources of funding will be adequate to
fund its short-term and long-term liquidity requirements, we cannot assure you
that the needed capital will be available on acceptable terms or at all.

Cash Flows

The following table presents our cash flows for the period indicated:



                                                             Year Ended December 31,
                                                               2021               2020
                                                                 (In thousands)
Cash Flow Data:
Net cash provided by (used in) operating activities    $     307,114           $ 196,556
Net cash provided by (used in) investing activities         (281,176)       

(16,283)


Net cash provided by (used in) financing activities           (5,611)       

(164,754)

Net increase (decrease) in cash and cash equivalents $ 20,327

   $  15,519



Operating Activities

Our operating cash flow is sensitive to many variables, the most significant of
which are the volatility of prices for oil and natural gas and the volume of oil
and natural gas sold by our producers as discussed in "  -    Results of
Operations  " above. Prices for these commodities are determined primarily by
prevailing market conditions. Regional and worldwide economic activity, extreme
weather conditions and other substantially variable factors influence market
conditions for these products. These factors are beyond our control and are
difficult to predict. The increase in net cash provided by operating activities
during the year ended December 31, 2021 compared to the same period in 2020 was
primarily driven by higher royalty income in 2021, which was largely offset by
(i) changes in our working capital accounts, most notably through an increase in
our royalty income accounts receivable in 2021 compared to 2020 due primarily to
an increase in oil and gas prices on production sold in the fourth quarter of
2021 compared to the fourth quarter of 2020, the Swallowtail Acquisition, and
the timing of our receipt of royalty income payments from our operators, (ii) an
increase in cash paid for derivative settlements and (iii) an increase in
production and ad valorem expenses due to the corresponding increase in royalty
income.

Investing Activities

Net cash used in investing activities during the years ended December 31, 2021 and 2020, was primarily related to acquisitions of oil and natural gas interests.

Financing Activities



Net cash used in financing activities during the year ended December 31, 2021,
was primarily related to net borrowings of $220.0 million under the Operating
Company's revolving credit facility to fund the Swallowtail Acquisition,
distributions of $176.6 million to our unitholders and $46.0 million of
repurchases of our common units during the fourth quarter of 2021 as discussed
below.

Net cash used in financing activities during the year ended December 31, 2020,
was primarily related to distributions of $108.0 million to our unitholders,
$24.0 million of common units repurchased as part of our unit repurchase
program, repurchases of the Notes totaling $19.7 million, net of discounts
during the second quarter of 2020, and net payments for borrowings under the
Operating Company's revolving credit facility of $12.5 million.


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Capital Resources

The Operating Company's Revolving Credit Facility

The Operating Company's credit agreement, as amended to date, provides for a
revolving credit facility in the maximum credit amount of $2.0 billion, with a
borrowing base of $580.0 million as of December 31, 2021, based on the Operating
Company's oil and natural gas reserves and other factors. At December 31, 2021,
the Operating Company had elected a commitment amount of $500.0 million on its
credit agreement with $304.0 million of outstanding borrowings. During the year
ended December 31, 2021, the weighted average interest rate on borrowings under
the Operating Company's revolving credit facility was 2.35%.


As of December 31, 2021, the Operating Company was in compliance, and expects to be in compliance, with all financial maintenance covenants under its credit agreement.

See Note 6- Debt of the notes to the consolidated financial statements included elsewhere in this Annual Report for additional discussion of our outstanding debt at December 31, 2021.

Capital Requirements

Senior Notes



The outstanding Notes obligations total $479.9 million as of December 31, 2021.
There are no principal amounts due until 2027. At December 31, 2021, we have a
remaining aggregate interest expense obligation of $154.8 million on the Notes
with $25.8 million being due each year from 2023 to 2027. The Notes are not
subject to any mandatory redemption or sinking fund requirements. See Note
6-  Debt   of the notes to the consolidated financial statements included
elsewhere in this Annual Report for further information on the Notes.

Unit Repurchase Program



On November 15, 2021, the board of directors of our General Partner approved an
increase of the authorization of its common unit repurchase program to
$150.0 million of the Partnership's outstanding common units and extended the
authorization indefinitely. During the year ended December 31, 2021, the
Partnership repurchased approximately $46.0 million of common units under the
repurchase program. As of December 31, 2021, $80.0 million remains available for
use to repurchase units under the repurchase program. See Note 7-  Unitholders'
Equity and Distributions   of the notes to the consolidated financial statements
included elsewhere in this Annual Report for further discussion of the unit
repurchase program.

Cash Distributions



We paid total distributions of $176.5 million and $108.0 million on our common
units and the Operating Company's Class B units during 2021 and 2020,
respectively. Beginning with the first quarter of 2020, the board of directors
of our General Partner revised the distribution policy to provide that the
Operating Company would distribute a percentage of its available cash to its
unitholders (including Diamondback and us) rather than all of its available cash
as it had previously done.

The distribution for the fourth quarter of 2021 is payable on March 11, 2022 to
common unitholders of record at the close of business on March 4, 2022. Based on
the common units and Operating Company units held by Diamondback on February 22,
2022, the distribution payable to Diamondback for the fourth quarter of 2021 on
March 11, 2022 will be approximately $43.1 million. See Note 7-  Unitholders'
Equity and Distributions   of the notes to the consolidated financial statements
included elsewhere in this Annual Report for further discussion of our
distributions. We expect to continue paying quarterly cash distributions in
respect of our common units. The board of directors of the General Partner may
change the distribution policies at any time. We are not required to pay
distributions to its common unitholders on a quarterly or other basis.

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Critical Accounting Estimates

The discussion and analysis of our financial condition and results of operations
are based upon our consolidated financial statements, which have been prepared
in accordance with GAAP.

Certain amounts included in or affecting our consolidated financial statements
and related disclosures must be estimated by our management, requiring certain
assumptions to be made with respect to values or conditions that cannot be known
with certainty at the time the consolidated financial statements are prepared.
These estimates and assumptions affect the amounts we report for assets and
liabilities and our disclosure of contingent assets and liabilities at the date
of the consolidated financial statements. Accounting estimates are considered to
be critical if (i) the nature of the estimates and assumptions is material due
to the levels of subjectivity and judgment necessary to account for highly
uncertain matters or the susceptibility of such matters to change, and (ii) the
impact of the estimates and assumptions on financial condition or operating
performance is material. We evaluate these estimates on an ongoing basis, using
historical experience, consultation with experts and other methods we consider
reasonable in the particular circumstances. Any effects on our business,
financial position or results of operations resulting from revisions to these
estimates are recorded in the period in which the facts that give rise to the
revision become known.

We consider the following to be our most critical accounting estimates and have
reviewed these critical accounting estimates with the Audit Committee of our
Board of Directors.

Royalty Interest and Revenue Recognition



We record revenue in the month production is delivered to the purchaser.
However, settlement statements for certain oil, natural gas and natural gas
liquids sales from third party operators other than Diamondback may not be
received for 30 to 90 days after the date production is delivered. To the extent
actual volumes and prices of oil and natural gas sales are unavailable for a
given reporting period because of timing or information not received from third
parties, the royalties related to expected sales volumes and prices for those
properties are estimated and recorded based upon the Partnership's interest.
Where available, historical actual data is used to calculate volume estimates
for wells operated by third parties. If historical actual data is not available
for these wells, engineering estimates are used to calculate expected volumes.
As such, estimated volumes utilized in period end royalty income accruals are
subject to revision as additional actual data becomes available and such
revisions may have a material impact on our results of operations and our
royalty income receivables. Pricing estimates are based upon actual prices
realized in an area by adjusting the market price for the average basis
differential from market on a basin-by-basin basis. We record the differences
between our estimates and the actual amounts received for royalties from third
parties in the month that payment is received from the producer. We have
existing internal controls for our royalty income estimation process and related
accruals, but actual third party royalty income in future periods could differ
materially from estimated amounts. At December 31, 2021, our accrual for third
party royalty was approximately $49.4 million. Actual revenues received from
third parties differed by approximately $1.9 million or 7% compared to the
accrual at December 31, 2020.

Oil and Natural Gas Accounting and Reserves



We account for oil and natural gas producing activities using the full cost
method of accounting, which is dependent on the estimation of proved reserves to
determine the rate at which we record depletion on our oil and natural gas
properties and whether the value of our evaluated oil and natural gas properties
is permanently impaired based on the quarterly full cost ceiling impairment
test. Further, we utilize estimated proved reserves to assign fair value to
acquired mineral and royalty interests. As such, we consider the estimation of
proved reserves to be a critical accounting estimate.

Oil and natural gas reserve engineering is a subjective process of estimating
underground accumulations of oil and natural gas that cannot be precisely
measured and the accuracy of any reserve estimate is a function of the quality
of available data and of engineering and geological interpretation and judgment.
Our independent engineers and technical staff prepare our estimates of oil and
natural gas reserves and their associated future net cash flows. The process of
estimating oil and natural gas reserves is complex, requiring significant
decisions in the evaluation of available geological, geophysical, engineering
and economic data. Significant inputs included in the calculation of future net
cash flows include our estimate of operating and development costs, anticipated
production of proved reserves and other relevant data. The data for a given
property may also change substantially over time as a result of numerous
factors, including additional development activity, evolving production history
and a continual reassessment of the viability of production under changing
economic conditions. As a result, material revisions to existing reserve
estimates occur from time to time, and reserve estimates are often different
from the quantities of oil and natural gas that are ultimately recovered.
Although every reasonable effort is made to ensure that reserve estimates
reported represent the most accurate assessments possible, the subjective
decisions and variances in available data for various
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properties increase the likelihood of significant changes in these estimates. If
such changes are material, they could significantly affect future depletion of
capitalized costs and result in impairment of assets that may be material.
Revisions of previous quantity estimates accounted for approximately 4% of the
change in the total standardized measure of our reserves from December 31, 2020
to December 31, 2021, and were primarily related to negative revisions due to
PUD downgrades during 2021.

Our unevaluated property costs are tracked by lease and prospect. We assess all
items classified as unevaluated property (on an individual basis or as a group
if properties are individually insignificant) on an annual basis for possible
impairment. This assessment is subjective and includes consideration of the
calculated value for each lease based on the total costs incurred for the lease
divided by the number of acres available to develop compared to current market
prices for acreage in the related basins. We also monitor information available
from third party operators of our acreage for future drilling plans as part of
our impairment assessment. At December 31, 2021, our unevaluated properties
totaled $1.6 billion. No impairments were recorded on our proved oil and natural
gas properties during the years ended December 31, 2021 and 2019; however,
impairment expense of $69.2 million was recorded for the year ended December 31,
2020 as discussed further in Note 5-  Oil and Natural Gas Interests   of the
notes to the consolidated financial statements included elsewhere in this Annual
Report. Due to an increase in the historical 12-month average trailing SEC
prices for oil and natural throughout 2021 and into 2022, we are not currently
projecting a full cost ceiling impairment in the first quarter of 2022. Any
future impairment could be material to our consolidated financial statements.

Derivative Instruments



In order to reduce uncertainty around commodity prices received for our oil and
natural gas operators' production, we enter into commodity price derivative
contracts from time to time. We exercise significant judgment in determining the
types of instruments to be used, the level of production volumes to include in
our commodity derivative contracts, the prices at which we enter into commodity
derivative contracts and the counterparties' creditworthiness.

We have not designated our derivative instruments as hedges for accounting
purposes and, as a result, mark our derivative instruments to fair value and
recognize the cash and non-cash change in fair value on derivative instruments
for each period in the consolidated statements of operations. We are also
required to recognize our derivative instruments on the consolidated balance
sheets as assets or liabilities at fair value with such amounts classified as
current or long-term based on their anticipated settlement dates. The accounting
for the changes in fair value of a derivative depends on the intended use of the
derivative and resulting designation, and is generally determined using
established index prices and other sources which are based upon, among other
things, futures prices and time to maturity. These fair values are recorded by
netting asset and liability positions, including any deferred premiums, that are
with the same counterparty and are subject to contractual terms which provide
for net settlement. Changes in the fair values of our commodity derivative
instruments have a significant impact on our net income because we follow
mark-to-market accounting and recognize all gains and losses on such instruments
in earnings in the period in which they occur.

See Item 7A. Quantitative and Qualitative Disclosures About Market Risk - Commodity Price Risk for additional sensitivity analysis of our open derivative positions at December 31, 2021.

Income Taxes



We have elected to be treated as a corporation for U.S. federal income tax
purposes. The amount of income taxes we record requires interpretations of
complex rules and regulations of federal, state, and provincial tax
jurisdictions. We use the asset and liability method of accounting for income
taxes, under which deferred tax assets and liabilities are recognized for the
future tax consequences of (i) temporary differences between the financial
statement carrying amounts and the tax bases of existing assets and liabilities
and (ii) operating loss and tax credit carryforwards. Deferred income tax assets
and liabilities are based on enacted tax rates applicable to the future period
when those temporary differences are expected to be recovered or settled. The
effect of a change in tax rates on deferred tax assets and liabilities is
recognized in income in the period the rate change is enacted. A valuation
allowance is provided for deferred tax assets when it is more likely than not
the deferred tax assets will not be realized after considering all positive and
negative evidence available concerning the realizability of our deferred tax
assets. During the year ended December 31, 2020, we established a valuation
allowance for the full amount of our deferred tax assets.

The accruals for deferred tax assets and liabilities are often based on
assumptions that are subject to a significant amount of judgment by management.
These assumptions and judgments are reviewed and adjusted as facts and
circumstances change. Material changes to our income tax accruals may occur in
the future based on the progress of ongoing audits, changes in legislation or
resolution of pending matters.
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Recent Accounting Pronouncements



See Note 2-  Summary of Significant Accoun    ting Policies   to in the notes of
our consolidated financial statements included elsewhere in this Annual Report
for a full listing of our significant accounting policies.

Off-Balance Sheet Arrangements

We currently have no off-balance sheet arrangements.

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