Item 8.01 Other Events.




As previously disclosed, on October 20, 2020, Parsley Energy, Inc., a Delaware
corporation ("Parsley"), entered into an Agreement and Plan of Merger (the
"Merger Agreement"), by and among Pioneer Natural Resources Company, a Delaware
corporation ("Pioneer"), Pearl First Merger Sub Inc., a Delaware corporation and
a wholly-owned subsidiary of Pioneer ("Merger Sub Inc."), Pearl Second Merger
Sub LLC, a Delaware limited liability company and a wholly-owned subsidiary of
Pioneer ("Merger Sub LLC"), Pearl Opco Merger Sub LLC, a Delaware limited
liability company and a wholly-owned subsidiary of Pioneer ("Opco Merger Sub
LLC"), Parsley and Parsley Energy, LLC, a Delaware limited liability company
("Opco LLC"). The Merger Agreement provides for, among other things, (i) the
merger of Merger Sub Inc. into Parsley (the "First Parsley Merger"), with
Parsley continuing as the surviving corporation (the "Surviving Corporation"),
(ii) simultaneously with the First Parsley Merger, the merger of Opco Merger Sub
LLC into Opco LLC (the "Opco Merger"), with Opco LLC continuing as the surviving
company, and (iii) immediately following the First Parsley Merger and the Opco
Merger, the merger of the Surviving Corporation into Merger Sub LLC (together
with the First Parsley Merger and the Opco Merger, the "Mergers"), with Merger
Sub LLC continuing as the surviving entity and a wholly-owned subsidiary of
Pioneer. As a result of the Mergers, Parsley will become a wholly owned
subsidiary of Pioneer. On December 4, 2020, Parsley and Pioneer filed with the
Securities and Exchange Commission (the "SEC") a definitive joint proxy
statement/prospectus for the solicitation of proxies in connection with the
special meetings of Parsley's stockholders and Pioneer's stockholders, each to
be held on January 12, 2021, to vote upon, among other things, matters necessary
to complete the Mergers (the "Joint Proxy Statement/Prospectus").

Litigation Related to the Mergers



Following the filing of the preliminary joint proxy statement/prospectus on
November 23, 2020 (the "Preliminary Joint Proxy Statement/Prospectus"), 12
complaints have been filed with respect to the Mergers as of January 5, 2021:
three in the United States District Court for the District of Delaware,
captioned as Wang v. Parsley Energy, Inc. et al, No. 1:20-cv-01600 (D. Del.)
(the "Wang Action"), Horde v. Parsley Energy, Inc. et al, No. 1:20-cv-1642 (D.
Del.) (the "Horde Action"), and Smith v. Parsley Energy, Inc. et al, No.
1:20-cv-01649 (D. Del.) (the "Smith Action"); seven in the United States
District Court for the Southern District of New York, captioned as Neal v.
Parsley Energy, Inc. et al, No. 1:20-cv-10355 (S.D.N.Y.) (the "Neal Action"),
Reyna v. Parsley Energy, Inc. et al, No. 1:20-cv-10453 (S.D.N.Y.) (the "Reyna
Action"), Poole v. Parsley Energy, Inc. et al, No. 1:20-cv-10456 (S.D.N.Y.) (the
"Poole Action"), Hutson v. Parsley Energy, Inc. et al, No. 1:20-cv-105049
(S.D.N.Y.) (the "Hutson Action"), Bushansky v. Parsley Energy, Inc. et al, No.
1:20-cv-10635 (S.D.N.Y.) (the "Bushansky Action"), Gebhardt v. Parsley Energy,
Inc. et al, No. 1:20-cv-10793 (S.D.N.Y.) (the "Gebhardt Action") and Prinzel v.
Parsley Energy, Inc. et al, No. 1:20-cv-10877 (S.D.N.Y.) (the "Prinzel Action");
one in the United States District Court for the Eastern District of New York,
captioned as Ortiz v. Parsley Energy, Inc. et al, No. 1:20-cv-06043 (E.D.N.Y.)
(the "Ortiz Action", and, together with the Wang Action, the Horde Action, the
Smith Action, the Neal Action, the Reyna Action, the Poole Action, the Hutson
Action, the Bushansky Action, the Gebhardt Action, and the Prinzel Action, the
"Federal Court Actions"); and one in the Supreme Court of the State of New York
for the County of New York, captioned as Gupta v. Parsley Energy, Inc. et al,
No. 656659/2020 (Sup. Ct. N.Y. Cty) (the "Gupta Action" and, together with the
Federal Court Actions, the "Stockholder Actions"). The Stockholder Actions were
filed by purported Parsley stockholders and name Parsley and the members of the
Parsley board as defendants. The Horde Action, Gupta Action, and Smith Action
also name Pioneer, Merger Sub Inc., Merger Sub LLC and Opco Merger Sub LLC as
defendants.

The Federal Court Actions allege, among other things, that the Preliminary Joint
Proxy Statement/Prospectus fails to disclose certain allegedly material
information in violation of Section 14(a) and Section 20(a) of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), as well as Rule 14a-9
under the Exchange Act. The Gupta Action is a putative class action and asserts
claims for breach of fiduciary duty against the members of the Parsley board and
claims for aiding and abetting breach of fiduciary duty against Parsley, Pioneer
and the merger subsidiaries. The complaint alleges that consideration for the
Mergers is inadequate, that certain aspects of the sales process were deficient,
that there are conflicts of interest between Parsley insiders and Parsley's
public stockholders and that the Preliminary Joint Proxy Statement/Prospectus
omitted material information. The Stockholder Actions seek injunctive relief
enjoining the Mergers and damages and costs, among other remedies.



                                       2

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It is possible that additional, similar complaints may be filed or the
complaints described above may be amended. If this occurs, Parsley and Pioneer
do not intend to announce the filing of each additional, similar complaint or
any amended complaint unless it contains materially new or different
allegations. Although Parsley and Pioneer cannot predict the outcome of or
estimate the possible loss or range of loss from these matters, Pioneer, Parsley
and Parsley's defendant directors believe that these complaints are without
merit and intend to vigorously defend them.

Parsley and Pioneer believe that these claims are without merit and no
supplemental disclosures are required under applicable laws; however, in order
to avoid the risk of the Stockholder Actions delaying the Mergers and to
minimize the expense of defending the Stockholder Actions, and without admitting
any liability or wrongdoing, Parsley and Pioneer are voluntarily making certain
disclosures below that supplement those contained in the Joint Proxy
Statement/Prospectus. Nothing in this Current Report on Form 8-K shall be deemed
an admission of the legal necessity or materiality under applicable laws of any
of the disclosures set forth herein. To the contrary, Parsley and Pioneer
specifically deny all allegations in the foregoing complaints, including that
any additional disclosure was or is required, and believe that the supplemental
disclosures contained herein are immaterial.

                 SUPPLEMENT TO JOINT PROXY STATEMENT/PROSPECTUS

Parsley and Pioneer are supplementing the Joint Proxy Statement/Prospectus with
certain additional information set forth below. These disclosures should be read
in connection with the Joint Proxy Statement/Prospectus, which should be read in
its entirety. All page references are to pages in the Joint Proxy
Statement/Prospectus, and all terms used below, unless otherwise defined, have
the meanings set forth in the Joint Proxy Statement/Prospectus. New text is
bolded and underlined.

The section of the Joint Proxy Statement/Prospectus titled "The Mergers-Background of the Mergers" is hereby amended and supplemented by:

Replacing the second sentence of the fifth full paragraph on page 61 in its entirety with the following:



The confidentiality agreement prohibited certain requests to waive the
confidentiality agreement, but allowed an interested party to make private
proposals (including waiver requests) to the Parsley board to the extent such
proposals would not create a legal disclosure obligation and also contained a
"fall away" provision rendering the standstill obligations inapplicable upon
certain events related to a change of control transaction involving the other
party, including that the standstill provisions would fall-away if Parsley
entered into an agreement with another party similar to the merger agreement.

Replacing the second full paragraph on page 71 in its entirety with the following:



The same day, Messrs. Thompson and Alameddine discussed a possible transaction
bonus pool program for Parsley employees, but ultimately decided that the
parties would not establish a separate transaction bonus pool program. Rather,
Parsley would proceed with its normal bonus program. Messrs. Thompson and
Alameddine also discussed the treatment of the 280(G) excise tax that certain
Parsley employees may owe as a result of payments in connection with the
mergers. At no time during the parties' negotiations with respect to the
proposed transaction did representatives of Pioneer and Parsley engage in
discussions regarding post-transaction employment of any Parsley employees.

The section of the Joint Proxy Statement/Prospectus titled "The Mergers-Certain
Parsley Unaudited Prospective Financial and Operating Information" is hereby
amended and supplemented by:

Inserting the following sentence at the end of the third bullet on page 88:

Parsley Case C consists of a reserves-based financial forecast that includes asset-level projections on a standalone basis, and as such does not independently forecast certain corporate line items.

Inserting the following sentence at the end of the fourth bullet on page 88:

Parsley Case D consists of a reserves-based financial forecast that includes asset-level projections on a standalone basis, and as such does not independently forecast certain corporate line items.

Inserting the following as a line item in the table at the top of page 89 under the heading "Parsley Case A" and revising footnote (5) to such table as follows:





Total revenue   $ 1,677     $ 1,873     $ 1,901     $ 2,031     $ 2,032


(5)  Other expense for 2020E represents hedge settlements (changes in accrual)
of $11 million, restructuring costs of $8 million associated with a reduction in
force and the relocation of certain employees to a different office building,
cash exploration and abandonment costs, including cash charges incurred for
non-recurring seismic information, of $7.1 million, amortization of debt related
costs, including interest income, of $1.7 million, rig stacking expense
comprising lump sum contract termination costs of $14.9 million, non-cash
plugging and abandonment adjustments of $1 million and other non-cash operating
cash flow items of $0.1 million.



                                       3

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Inserting the following as a line item in the table at the bottom of page 89
under the heading "Parsley Case B" and revising footnote (5) to such table as
follows:



Total revenue   $ 1,708     $ 1,931     $ 1,916     $ 2,024     $ 2,013


(5)  Other expense for 2020E represents hedge settlements (changes in accrual)
of $11 million, restructuring costs of $8 million associated with a reduction in
force and the relocation of certain employees to a different office building,
cash exploration and abandonment costs, including cash charges incurred for
non-recurring seismic information, of $7.1 million, amortization of debt related
costs, including interest income, of $1.7 million, rig stacking expense
comprising lump sum contract termination costs of $14.9 million, non-cash
plugging and abandonment adjustments of $1 million and other non-cash operating
cash flow items of $0.1 million.

Inserting the following as a line item in the table in the middle of page 90 under the heading "Parsley Case C":





Total revenue   $ 920     $ 1,836     $ 1,848     $ 1,903     $ 1,989     $ 2,061     $ 2,145

Inserting the following as a line item in the table at the bottom of page 90 under the heading "Parsley Case D":





Total revenue   $ 920     $ 1,836     $ 1,848     $ 1,903     $ 1,989     $ 2,289     $ 2,382


The section of the Joint Proxy Statement/Prospectus titled "The Mergers-Opinions
of Pioneer's Financial Advisors-Opinion of Goldman Sachs & Co. LLC" is hereby
amended and supplemented by:

Replacing the second and third paragraphs under the heading "Illustrative Discounted Cash Flow Analysis-Parsley" on pages 96 and 97 in their entirety with the following:



Without Pioneer expected synergies. Using discount rates ranging from 7.5% to
8.5%, reflecting estimates of Parsley's weighted average cost of capital,
Goldman Sachs discounted to present value as of September 30, 2020 (i) estimates
of the unlevered free cash flows to be generated by Parsley on a standalone
basis, excluding Pioneer expected synergies, for the period from September 30,
2020 to December 31, 2024, as reflected in the Pioneer projections (without
synergies) for Parsley, and (ii) a range of illustrative terminal values for
Parsley as of December 31, 2024, calculated by applying perpetuity growth rates
ranging from (0.5)% to 0.5% to the estimate of the terminal year unlevered free
cash flow of Parsley of approximately $785 million, as reflected in the Pioneer
projections for Parsley (which analysis implied multiples of the implied
terminal values derived for Parsley to estimated earnings before interest,
taxes, depreciation, and amortization ("EBITDA") for Parsley, as reflected in
the Pioneer projections for Parsley, for 2024, ranging from 6.2x to 8.0x).
Goldman Sachs derived the discount rates referenced above by application of the
capital asset pricing model ("CAPM"), which requires certain company-specific
inputs, including the company's target capital structure weightings, the cost of
long-term debt, future applicable marginal cash tax rate and a beta for the
company, as well as certain financial metrics for the United States financial
markets generally. The range of perpetuity growth rates was estimated by Goldman
Sachs utilizing its professional judgment and experience, taking into account
the Pioneer projections for Parsley on a standalone basis and market
expectations regarding long-term real growth of gross domestic product and
inflation. Goldman Sachs derived a range of illustrative enterprise values for
Parsley by adding the ranges of present values it derived as described above.
Goldman Sachs then subtracted from the range of illustrative enterprise values
it derived the net debt of Parsley as of September 30, 2020 of approximately
$3.161 billion, as reflected in Parsley's consolidated balance sheet as of that
date, and the TRA payment, to derive a range of illustrative equity values for
Parsley. Goldman Sachs then divided the range of illustrative equity values it
derived for Parsley on a standalone basis by the fully diluted shares of Parsley
Class A common stock (including shares issuable in exchange for outstanding
Parsley LLC stapled units) outstanding as of October 19, 2020 of 416,532,582,
calculated based on equity information provided by Parsley management and
approved for Goldman Sachs' use by Pioneer management, to derive a range of
illustrative present values per share of Parsley Class A common stock and
Parsley LLC stapled unit of $13.88 to $19.29.



                                       4

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With Pioneer expected synergies. Goldman Sachs performed the same discounted
cash flow analysis described above for Parsley, taking into account Pioneer
expected synergies, using discount rates ranging from 7.5% to 8.5%, reflecting
estimates of Parsley's weighted average cost of capital, Goldman Sachs
discounted to present value as of September 30, 2020 (i) estimates of the
unlevered free cash flows to be generated by Parsley taking into account Pioneer
expected synergies, for the period from September 30, 2020 to December 31, 2024,
as reflected in the Pioneer projections for Parsley and the Pioneer expected
synergies, and (ii) a range of illustrative terminal values for Parsley as of
December 31, 2024, calculated by applying perpetuity growth rates ranging from
(0.5)% to 0.5% to the estimate of the terminal year unlevered free cash flow of
Parsley of approximately $862 million, as reflected in the Pioneer projections
for Parsley and the Pioneer expected synergies (which analysis implied multiples
of the implied terminal values derived for Parsley to estimated EBITDA for
Parsley, as reflected in the Pioneer projections for Parsley and the Pioneer
expected synergies for 2024, ranging from 6.4x to 8.4x). Goldman Sachs derived
the discount rates referenced above by application of CAPM. The range of
perpetuity growth rates was estimated by Goldman Sachs utilizing its
professional judgment and experience, taking into account the Pioneer
projections for Parsley and the Pioneer expected synergies and market
expectations regarding long-term real growth of gross domestic product and
inflation. Goldman Sachs derived a range of illustrative enterprise values for
Parsley by adding the ranges of present values it derived as described above.
Goldman Sachs then subtracted from the range of illustrative adjusted enterprise
values it derived the net debt of Parsley as of September 30, 2020 of
approximately $3.161 billion, as reflected in Parsley's consolidated balance
sheet as of that date, and the TRA payment, to derive a range of illustrative
equity values for Parsley. Goldman Sachs then divided the range of illustrative
equity values it derived for Parsley on a standalone basis by the fully diluted
shares of Parsley Class A common stock outstanding as of October 19, 2020 of
416,532,582, calculated based on equity information provided by Parsley
management and approved for Goldman Sachs' use by Pioneer management, to derive
a range of illustrative present values per share of Parsley Class A common stock
and Parsley LLC stapled unit of $16.08 to $22.01.

Replacing the second and third paragraphs under the heading "Discounted Cash Flow Analysis-Pioneer Standalone" on page 98 in their entirety with the following:



Using discount rates ranging from 6.5% to 7.5%, reflecting estimates of
Pioneer's weighted average cost of capital, Goldman Sachs discounted to present
value as of September 30, 2020 (i) estimates of the unlevered free cash flows to
be generated by Pioneer on a standalone basis for the period from September 30,
2020 to December 31, 2024, as reflected in the Pioneer projections for Pioneer,
and (ii) a range of illustrative terminal values for Pioneer on a standalone
basis as of December 31, 2024, calculated by applying perpetuity growth rates
ranging from 1.25% to 2.25% to the estimate of the terminal year unlevered free
cash flow of Pioneer of approximately $1.275 billion, as reflected in the
Pioneer projections for Pioneer (which analysis implied multiples of the implied
terminal values derived for Pioneer to EBITDA for Pioneer, as reflected in the
Pioneer projections for Pioneer on a standalone basis, for 2024, ranging from
5.8x to 8.7x). Goldman Sachs derived the discount rates referenced above by
application of CAPM. The range of perpetuity growth rates was estimated by
Goldman Sachs utilizing its professional judgment and experience, taking into
account the Pioneer projections for Pioneer on a standalone basis and market
expectations regarding long-term real growth of gross domestic product and
inflation.

Goldman Sachs derived a range of illustrative enterprise values for Pioneer on a
standalone basis by adding the ranges of present values it derived as described
above. Goldman Sachs then subtracted from the range of illustrative enterprise
values it derived the net debt (including finance leases and net contingent fee
obligations) of Pioneer on a standalone basis as of September 30, 2020 of
approximately $2.899 billion, as provided by Pioneer management, to derive a
range of illustrative equity values for Pioneer on a standalone basis. Goldman
Sachs then divided the range of illustrative equity values it derived for
Pioneer on a standalone basis by the fully diluted shares of Pioneer common
stock outstanding as of October 19, 2020 (ranging from 166,125,442 shares
outstanding to 166,159,037 shares outstanding), calculated based on equity
information provided by Pioneer management, to derive a range of illustrative
present values per share of Pioneer common stock on a standalone basis of $98.80
to $150.22.



                                       5

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Replacing the second and third paragraphs under the heading "Discounted Cash
Flow Analysis-Pioneer Pro Forma" on pages 98 and 99 in their entirety with the
following:

Using discount rates ranging from 6.5% to 7.5%, reflecting estimates of
Pioneer's weighted average cost of capital on a pro forma basis, Goldman Sachs
discounted to present value as of September 30, 2020 (i) estimates of the
unlevered free cash flows to be generated by Pioneer on a pro forma basis for
the period from September 30, 2020 to December 31, 2024, as reflected in the
Pioneer projections for Pioneer on a pro forma basis, and (ii) a range of
illustrative terminal values for Pioneer on a pro forma basis as of December 31,
2024, calculated by applying perpetuity growth rates ranging from 0.5% to 1.5%
to the estimate of the terminal year unlevered free cash flow of Pioneer of
approximately $2.136 billion, as reflected in the Pioneer projections for
Pioneer (which analysis implied multiples of the implied terminal values derived
for Pioneer to estimated EBITDA for Pioneer, as reflected in the Pioneer
projections on a pro forma basis for Pioneer, for 2024, ranging from 6.1x to
8.6x). Goldman Sachs derived the discount rates referenced above by application
of CAPM. The range of perpetuity growth rates was estimated by Goldman Sachs
utilizing its professional judgment and experience, taking into account the
Pioneer projections on a pro forma basis and market expectations regarding
long-term real growth of gross domestic product and inflation.

Goldman Sachs derived a range of illustrative enterprise values for Pioneer on a
pro forma basis by adding the ranges of present values it derived as described
above. Goldman Sachs then subtracted from the range of illustrative enterprise
values it derived the net debt (including finance leases and net contingent fee
obligations) of Pioneer on a pro forma basis as of September 30, 2020 of
approximately $6.06 billion, as provided by Pioneer management and the TRA
payment, to derive a range of illustrative equity values for Pioneer on a pro
forma basis. Goldman Sachs then divided the range of illustrative equity values
it derived for Pioneer on a pro forma basis by the fully diluted shares of
Pioneer common stock outstanding as of October 19, 2020 (ranging from
218,278,421 shares outstanding to 218,537,878 shares outstanding), calculated
based on equity information provided by Pioneer management, to derive a range of
illustrative present values per share of Parsley Class A common stock and
Parsley LLC stapled unit on a pro forma basis of $109.00 to $159.18.

The section of the Joint Proxy Statement/Prospectus titled "The Mergers-Opinions
of Pioneer's Financial Advisors-Opinion of Morgan Stanley & Co. LLC" is hereby
amended and supplemented by:

Replacing the first table on page 106 in its entirety with the following:





                                                                                               TV / Current        TV / EBITDAX        Offer Price /
                                                                            Transaction         Production           (FY + 1)          CFPS (FY + 1)
Transaction                         Announce Date       Closing Date        Value ($MM)         ($/Boepd)              (x)                  (x)
Permian Basin
ConocoPhillips / Concho
Resources, Inc.                         10/19/2020              N / A      $      13,351      $       41,854                5.0x                 3.8x
Parsley Energy, Inc. / Jagged
Peak Energy, Inc.                       10/14/2019         01/10/2020      $       2,278      $       57,966                5.1x                 3.9x
Diamondback Energy / Energen             8/14/2018         11/29/2018      $       9,197      $       94,428                8.8x                 8.3x
Concho Resources / RSP Permian           3/28/2018         07/19/2018      $       9,301      $      149,054                9.9x                 9.4x
Diversified, Partially Permian
or Other Basin
Devon Energy Corporation / WPX
Energy, Inc.                             9/26/2020               N/ A      $       5,730      $       34,334                3.7x                 2.0x
Chevron Corporation / Noble
Energy, Inc.                             7/20/2020         10/05/2020      $      13,251      $       37,860                7.1x                 3.3x
Callon Petroleum Company /
Carrizo Oil & Gas, Inc.                  7/15/2019         12/20/2019      $       3,167      $       74,865                4.3x                 1.9x
Occidental Petroleum
Corporation / Anadarko
Petroleum Corporation                     5/9/2019         08/08/2019      $      57,469      $       77,295                7.0x                 5.9x
Encana Corporation / Newfield
Exploration Company                      11/1/2018         02/13/2019      $       7,729      $       38,919                4.9x                 3.9x
Chesapeake Energy Corporation /
WildHorse Resource Development
Corporation                             10/30/2018         02/01/2019      $       3,804      $       81,466                5.6x                 3.9x




                                       6

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Replacing the paragraph under the heading "Pioneer Discounted Cash Flow Analysis" on page 107 in its entirety with the following:



With respect to Pioneer, Morgan Stanley calculated a range of implied total
equity values of Pioneer and values per share of Pioneer common stock based on
estimates of future unlevered free cash flows of Pioneer based on estimates by
Pioneer management from January 1, 2021 through December 31, 2024. Morgan
Stanley calculated a terminal value range of $16,451 million to $23,763 million
for Pioneer by applying an exit multiple range of 4.5x to 6.5x to the EBITDA of
Pioneer for the terminal year, based on Morgan Stanley's professional judgement
and taking into account Pioneer's historical trading multiples. Morgan Stanley
then discounted the unlevered free cash flows and terminal value to present
value as of December 31, 2020 using discount rates of 7.2% to 8.8%, representing
the range of discount rates for Pioneer selected by Morgan Stanley based on
Morgan Stanley's estimation of Pioneer's weighted average cost of capital of
7.2% to 8.8%. Morgan Stanley then deducted the net debt of Pioneer from the
resulting value to derive equity value. Net debt was based on the estimated
$1.668 billion of net debt as of December 31, 2020 provided in the Pioneer
projections. Based on the above-described analysis, Morgan Stanley derived a
range of implied values per share of Pioneer common stock as of December 31,
2020 of $82.05 to $120.50.

Replacing the paragraph under the heading "Parsley Discounted Cash Flow Analysis" on page 107 in its entirety with the following:



With respect to Parsley, Morgan Stanley calculated a range of implied total
equity values of Parsley and values per share of Parsley Class A common stock
based on estimates of future unlevered free cash flows of Parsley based on the
Pioneer projections for Parsley from January 1, 2021 through December 31, 2024.
Morgan Stanley calculated a terminal value range of $5,614 million to
$8,421 million for Parsley by applying an exit multiple range of 4.0x to 6.0x to
the EBITDA of Parsley for the terminal year, based on Morgan Stanley's
professional judgement and taking into account Parsley's historical trading
multiples. Morgan Stanley then discounted the unlevered free cash flows and
terminal value to present value as of December 31, 2020 using discount rates of
7.9% to 9.3%, representing the range of discount rates for Parsley selected by
Morgan Stanley based on Morgan Stanley's estimation of Parsley's weighted
average cost of capital of 7.9% to 9.3%. Morgan Stanley then deducted the net
debt of Parsley from the resulting value to derive equity value. Net debt was
based on the estimated $2.846 billion of net debt as of December 31, 2020
provided in the Pioneer projections for Parsley. Based on the above-described
analysis, Morgan Stanley derived a range of implied values per share of Parsley
Class A common stock as of December 31, 2020 of $8.35 to $13.94.

Replacing the first paragraph under the heading "Equity Research Valuation-Parsley" on page 108 in its entirety with the following:



Morgan Stanley reviewed sell-side analyst price targets per share of Parsley
Class A common stock prepared and published on Bloomberg by 31 equity research
analysts during the time period from August 6, 2020 to October 19, 2020. These
targets generally reflect each analyst's estimate of the 12-month future public
market trading price per share of Parsley Class A common stock and were not
. . .

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