UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549


FORM 11-K

ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2021

OR

TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

For the transition period from _________ to _________

Commission File Number: 333-39249

A.     Full title of the plan and the address of the plan, if different from that of the issuer named below:

PIONEER NATURAL RESOURCES USA, INC. 401(k) AND MATCHING PLAN

B.     Name of issuer of the securities held pursuant to the plan and the address of its principal executive office:

Pioneer Natural Resources Company
777 Hidden Ridge
Irving, Texas 75038




















PIONEER NATURAL RESOURCES USA, INC. 401(k) AND MATCHING PLAN


Financial Statements and Supplemental Schedule

As of December 31, 2021 and 2020 and for the year ended December 31, 2021

With Report of Independent Registered Public Accounting Firm




PIONEER NATURAL RESOURCES USA, INC. 401(k) AND MATCHING PLAN

TABLE OF CONTENTS

Page
Report of Independent Registered Public Accounting Firm
Statements of Net Assets Available for Benefits as of December 31, 2021 and 2020
Statement of Changes in Net Assets Available for Benefits for the Year Ended December 31, 2021
Notes to Financial Statements
Schedule H; Line 4i – Schedule of Assets (Held At End of Year) as of December 31, 2021
Signatures
Index to Exhibits
3



REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Participants and Plan Administrator of the Pioneer Natural Resources USA, Inc. 401(k) and Matching Plan

Opinion on the Financial Statements

We have audited the accompanying statements of net assets available for benefits of the Pioneer Natural Resources USA, Inc. 401(k) and Matching Plan (the “Plan”) as of December 31, 2021 and 2020, and the related statement of changes in net assets available for benefits for the year ended December 31, 2021, and the related notes (collectively referred to as the financial statements). In our opinion, the financial statements present fairly, in all material respects, the net assets available for benefits of the Plan as of December 31, 2021 and 2020, and the changes in net assets available for benefits for the year ended December 31, 2021, in conformity with accounting principles generally accepted in the United States of America.

Basis for Opinion

These financial statements are the responsibility of the Plan’s management. Our responsibility is to express an opinion on the Plan’s financial statements based on our audits. 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 Plan 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 audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud.

Our audits included performing procedures to assess the risks of material misstatement of the financial statements,whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Supplemental Information

The supplemental schedule of Form 5500, Schedule H, Line 4i – Schedule of Assets (Held at End of Year) as of December 31, 2021, has been subjected to audit procedures performed in conjunction with the audit of the Plan’s financial statements. The supplemental information is the responsibility of the Plan’s management. Our audit procedures included determining whether the supplemental information reconciles to the financial statements or the underlying accounting and other records, as applicable, and performing procedures to test the completeness and accuracy of the information presented in the supplemental information. In forming our opinion on the supplemental information, we evaluated whether the supplemental information, including its form and content, is presented in conformity with the Department of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. In our opinion, the supplemental information is fairly stated, in all material respects, in relation to the financial statements as a whole.

/s/ Whitley Penn LLP

We have served as the Plan's auditor since 2014.

Dallas, Texas
June 28, 2022

4


PIONEER NATURAL RESOURCES USA, INC. 401(k) AND MATCHING PLAN
STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS
December 31,
20212020
Investments at fair value$786,888,797 $687,229,312 
Notes receivable from participants8,663,494 10,422,164 
Total assets795,552,291 697,651,476 
Accrued administrative expenses(39,928)(28,678)
Net assets available for benefits$795,512,363 $697,622,798 












































See accompanying notes to financial statements.
5


PIONEER NATURAL RESOURCES USA, INC. 401(k) AND MATCHING PLAN
STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS
Year Ended December 31, 2021
Additions to net assets available for benefits:
Net appreciation in fair value of investments $92,141,520 
Interest and dividend income23,905,953 
Participants' contributions20,978,205 
Employer contributions16,788,177 
Rollover contributions2,055,851 
Other additions, net132,686 
Total additions156,002,392 
Deductions from net assets available for benefits:
Distributions to participants89,845,944 
Administrative expenses762,585 
Total deductions90,608,529 
Net increase in net assets available for benefits65,393,863 
Asset transfers in33,186,192 
Asset transfers out(690,490)
Net assets available for benefits, beginning of year697,622,798 
Net assets available for benefits, end of year$795,512,363 





















See accompanying notes to financial statements.
6

PIONEER NATURAL RESOURCES USA, INC. 401(k) AND MATCHING PLAN

NOTES TO FINANCIAL STATEMENTS
December 31, 2021 and 2020



NOTE 1.    Description of Plan
The following description of the Pioneer Natural Resources USA, Inc. 401(k) and Matching Plan (the "Plan") provides only general information. A more complete description of the Plan is accessible to each participant and beneficiary through the website maintained for the Plan at www.vanguard.com. Access to the website is only available to each participant and beneficiary. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended ("ERISA").
General
The Plan is a defined contribution plan established on January 1, 1990 under Section 401 of the Internal Revenue Code of 1986, as amended (the "Code"). The Plan was established for the benefit of the employees of Pioneer Natural Resources USA, Inc., a wholly-owned subsidiary of Pioneer Natural Resources Company (the "Company"), and any affiliate of Pioneer Natural Resources USA, Inc. that has adopted the Plan pursuant to the terms of the Plan (collectively referred to as the "Employer"). All regular full-time and part-time employees of the Employer are eligible to participate in the Plan on the first payroll date following their date of hire. A temporary employee is eligible to participate in the Plan upon the earlier of (i) the first day of the Plan year after the employee completes one year of eligibility service (which is the period of twelve consecutive months commencing on the employee's employment date or any Plan year commencing after the employee's employment date, during which the employee completes at least 1,000 hours of service) or (ii) the date that is six months after the employee completes one year of eligibility service. The Plan's assets are held in a trust and certain administrative functions are performed by Vanguard Fiduciary Trust Company, the trustee of the Plan (the "Trustee"). The Plan is administered by the Pioneer Natural Resources USA, Inc. 401(k) and Matching Plan Committee (the "Plan Administrator").
On January 12, 2021, the Company acquired Parsley Energy, Inc., a Delaware corporation that previously traded on the NYSE under the symbol "PE" ("Parsley"). In connection with the acquisition of Parsley, the Company assumed all rights and obligations under the Parsley Energy Operations, LLC 401(k) Plan. Effective July 1, 2021, the Company amended the Plan to reflect the merger of the Parsley Energy Operations, LLC 401(k) Plan with and into the Plan, which resulted in a $33,186,192 increase in net assets available for benefits of the Plan.
Contributions
Participants may elect to contribute to the Plan an amount up to 80 percent of their pre-tax basic compensation as defined in the Plan ("Basic Compensation") per pay period or the applicable legal limit per the Code. Additionally, participants may elect to make after-tax contributions to the Plan. Participants may also make Roth contributions to the Plan, which allow a participant to pay federal income taxes on a portion of their contributions to the Plan and take related distributions from the Plan free of federal income tax. A participant's combined pre-tax, Roth and after-tax contributions to the Plan cannot exceed 80 percent of the participant's Basic Compensation per pay period or the applicable legal limit. Certain participants may make catch-up contributions to the Plan in accordance with Section 414(v) of the Code. Pre-tax, Roth, after-tax and catch-up contributions are hereinafter referred to as "Participant Contributions."
Matching contributions made in cash by the Employer on behalf of a participant are based on an amount equal to 100 percent of the pre-tax contributions and pre-tax contributions designated as Roth contributions made by the participant that do not exceed 10 percent of the participant's annual Basic Compensation.

The Plan provides for the automatic enrollment of certain employees. On February 6, 2018, the Company executed an amendment to the Plan that changed its automatic enrollment provisions. Pursuant to such provisions, employees who were eligible for participation in the Plan on January 29, 2018 or later were automatically enrolled in the Plan with a contribution rate of five percent of the employee's pre-tax Basic Compensation. Employees may opt out of participation or make an alternate election within 30 days of becoming eligible for participation. All contributions are subject to certain limitations of the Code.
Participant Accounts and Investment Options
Participants' accounts are credited with their Participant Contributions and Matching Contributions. In accordance with Section 404(c) of ERISA and the Plan's Investment Policy Statement, participants exercise individual
7

PIONEER NATURAL RESOURCES USA, INC. 401(k) AND MATCHING PLAN

NOTES TO FINANCIAL STATEMENTS
December 31, 2021 and 2020


control over their accounts and are provided a broad range of investment funds in which they may choose to invest their Participant Contributions and Matching Contributions. Earnings and losses attributable to the participants' chosen investments are allocated to the participants' accounts and a flat quarterly fee of $13.00 ($52.00 annually) is deducted from each participant's account to cover expenses associated with administering the Plan. The benefit to which a participant is entitled is the amount that can be realized from the participant's vested account. See Note 3 for additional information regarding investment risks and uncertainties.
Vesting
Participants are immediately vested in their Participant Contributions and any earnings thereon. Participants vest in 25 percent of their Matching Contributions and earnings thereon for each full year of completed service to the Company over a four-year period that begins with the participant's date of hire. Participants' account balances that were merged into the Plan from predecessor plans are fully vested. The Plan provides for full and immediate vesting in any employer-derived benefits accrued under the Plan for certain employees who are terminated in connection with the sale of certain assets or restructuring of the organization.
Payments of Benefits
A participant may receive a distribution of the vested amount credited to the participant's accounts under the Plan upon one of the following events:
retirement (which means separation from employment on or after the participant's 65th birthday),
permanent disability,
death, or
other separation from employment.
Vested balances greater than $5,000. If the total value of the vested portion of a participant's accounts (other than rollover amounts) exceeds $5,000, subject to participant consent, payments will begin no later than 60 days after the end of the Plan year in which the participant becomes entitled to a distribution. However, the law requires that distributions must begin no later than April 1 of the calendar year following the calendar year in which a participant reaches age 70½ or, if later, when the participant retires. Distributions of the participant's vested portion of the account can be in the form of a single distribution. Further, the vested portion of a retired, disabled or deceased participant also can be in the form of monthly, quarterly or annual installment distributions over a period of two or more years, but no longer than one of the following periods (as selected by the participant or the designated beneficiary): for a retired or disabled participant, (i) the participant's life, (ii) the lives of the participant and his or her designated beneficiary, (iii) a period not extending beyond the participant's life expectancy, or (iv) a period not extending beyond the joint life and last survivor expectancy of the participant and his or her designated beneficiary, and for a deceased participant, (a) the life of the participant's designated beneficiary or (b) a period not extending beyond the life expectancy of the designated beneficiary. Upon the termination of employment, retirement or disability of a participant, such participant's vested account balances attributable to predecessor plans shall be distributed in the form of a joint and survivor annuity unless the participant directs the Plan Administrator to distribute the benefits in the form of a single distribution or installment distributions.
Vested balances less than or equal to $5,000. If the total value of the vested portion of the participant's accounts is $1,000 or less, payment will be made in a single distribution as soon as administratively possible. If the total value of the vested portion of the participant's accounts is greater than $1,000 but less than or equal to $5,000 (not including amounts in the participant's rollover account, if any), and a distribution is required to be made to a participant prior to attainment of age 65, the Plan will automatically pay the distribution in a direct rollover to an individual retirement account designated by the Plan Administrator unless the participant elects to have it paid directly to the participant in a single distribution or rolled over to another eligible retirement plan.
In either case, vested amounts that are invested in the Pioneer Natural Resources Stock Fund may, at the election of the participant, be distributed in the form of the Company's common stock with cash distributed in lieu of fractional shares of stock. Under the Plan, a participant's beneficiary will receive the participant's account balances in the event of the participant's death.
8

PIONEER NATURAL RESOURCES USA, INC. 401(k) AND MATCHING PLAN

NOTES TO FINANCIAL STATEMENTS
December 31, 2021 and 2020


In-Service Withdrawals
A current employee of the Employer may withdraw (i) all or a portion of the participant's account balances derived from after-tax Participant Contributions or rollover contributions, (ii) pre-tax Participant Contributions (excluding earnings and qualified non-elective contributions allocated to the participant's pre-tax Participant Contributions accounts) under certain hardship conditions specified in the Plan document, or (iii) if the participant has attained the age of 59½, all or a portion of the participant's vested account balances (excluding balances in certain predecessor plan accounts that contain employer matching contributions). In addition, certain withdrawals may be made by (i) a participant who is a reservist or national guardsman called to active duty, (ii) a participant who is performing qualified military service and who is receiving differential wage payments from the Employer or (iii) a participant who met the necessary coronavirus-related requirements detailed below.
COVID-19 distributions. Effective January 1, 2020 through December 31, 2020, regardless of active or inactive status in the Plan, a participant who (i) was diagnosed, or whose spouse or dependent was diagnosed, with COVID-19 by a test approved by the Centers for Disease Control and Prevention (including a test authorized under the Federal Food, Drug, and Cosmetic Act) or (ii) who experienced adverse financial consequences as a result of the participant, the participant’s spouse or a member of the participant’s household (that is, someone who shared the participant’s principal residence) being quarantined, furloughed, laid off or having work hours reduced due to COVID-19, being unable to work due to lack of child care due to COVID-19, closing or reducing hours of a business that they own or operate due to COVID-19, having pay or self-employment income reduced due to COVID-19 or having a job offer rescinded or start date for a job delayed due to COVID-19 ("Affected Individual"), the Affected Individual was eligible to withdraw up to $100,000 from their Plan account. COVID-19 distributions were not subject to the mandatory 20 percent federal withholding on early withdrawals, and the 10 percent early withdrawal penalty was waived. COVID-19 distributions were permitted until December 31, 2020. Any taxes associated with the distribution can be paid pro-rata over a three-year period. An Affected Individual also may repay the amount of the distribution as a direct rollover within three years.
Participant Loans
Participants may borrow from their accounts a maximum of the lesser of (i) $50,000 (reduced by the highest total outstanding balance of all other Plan loans to the participant during the one-year period ending on the day before the date a new loan is made) or (ii) 50 percent of their accounts' vested balances. The loans are secured by the balance in the participants' accounts. Participants' loans bear interest at an annual rate equal to the prime borrowing rate at the inception of the loan plus one percent. When the loan is repaid, both principal and interest are deposited into the participant's account. Loan principal and interest are paid ratably through payroll deductions over a period not to exceed five years unless the loan is for the purpose of acquiring the principal residence of the participant, which is not to exceed a period of 15 years. A participant may not have more than two participant loans outstanding at any time. Loans to participants are valued at their unpaid principal balance plus any accrued but unpaid interest.
In connection with the involuntary termination of employees as a result of the sale of the Company's well services business to a third party in March 2021, $690,490 of outstanding participant loan balances were transferred out of the Plan to a new recordkeeper.
Beginning in 2020, under the Coronavirus Aid, Relief and Economic Security Act (“CARES Act”), Plan participants could delay loan repayments for loans that occurred between March 27, 2020 and December 31, 2020. If a delay was granted, the participant’s note was re-amortized and included any interest accrued during the period of delay. The ability to request a delay in loan repayments under the CARES Act ceased as of December 31, 2020.
Forfeitures
The unvested portion of a participant's account is forfeited to the Plan upon termination of employment, with the exception of certain employees who are terminated in connection with the sale of certain assets or restructuring of the organization. Such employees become immediately vested in any employer-derived benefits accrued under the Plan upon their termination.
Forfeitures may be used to defray Plan administrative expenses, reduce Matching Contributions made to the Plan by the Employer or restore previously forfeited amounts to participants upon rehire by the Company. In 2021, forfeitures of $182,829 were used to pay Plan administrative expenses. Plan assets in the Plan's forfeiture account
9

PIONEER NATURAL RESOURCES USA, INC. 401(k) AND MATCHING PLAN

NOTES TO FINANCIAL STATEMENTS
December 31, 2021 and 2020


totaled $777,991 and $983,913 as of December 31, 2021 and 2020, respectively. The Company elected to fund 2021 Matching Contributions totaling $631,412 via forfeitures subsequent to December 31, 2021.
Plan Termination
Although it has not expressed any intent to do so, the Employer has the right under the Plan, subject to the provisions of ERISA, to discontinue its Matching Contributions at any time or to terminate the Plan. In the event of the Plan's termination or the complete discontinuance of any Matching Contributions to the Plan, participants will immediately become fully vested in their accounts.
NOTE 2.    Summary of Significant Accounting Policies
Basis of Presentation
The accompanying financial statements have been prepared under the accrual basis of accounting in accordance with generally accepted accounting principles in the United States of America ("GAAP").
Distributions of Benefits
Distributions of benefits to participants are recorded when paid.
Investment Valuation
The Plan's investments presented in the accompanying Statements of Net Assets Available for Benefits as of December 31, 2021 and 2020 are stated at fair value as reported by the Trustee.
Investments in the common/collective trusts are valued at net asset value based upon the fair values of the underlying net assets of the trusts, as determined by the issuer. Vanguard Retirement Savings Trust III ("VRSTIII") invests in fully benefit-responsive investment contracts, including traditional contracts, wrapper contracts re-bid to determine the replacement cost and underlying bond instruments valued by the Trustee. The net asset value is used as a practical expedient to estimate fair value. The practical expedient would not be used if it is determined to be probable that the fund will sell the investment for an amount different from the reported net asset value. Participant transactions (purchases and sales) may occur daily. If the Plan initiates a full redemption of the common/collective trust, the issuer reserves the right to require 12 months notification in order to ensure that securities liquidations will be carried out in an orderly business manner. The value of the investment in VRSTIII as of December 31, 2021 and 2020 was $38,425,168 and $38,542,750, respectively. See Note 4 for additional information about fair value.
Security Transactions and Investment Income
Security transactions are accounted for on a trade-date basis. Expenses incurred with transactions, if any, are added to the purchase price or deducted from the selling price at the time of the transactions. Dividend income is recorded on the ex-dividend date. Interest income is recorded as earned on an accrual basis. Net increases or decreases in the fair value of investments include the Plan's gains and losses on investments bought and sold as well as investments held during the year.
Notes Receivable from Participants
Notes receivable from participants represent participant loans that are recorded at their unpaid principal balance plus any accrued but unpaid interest. Interest income on notes receivable from participants is recorded when it is earned. Related fees are recorded as administrative expenses and are expensed when they are incurred. No allowance for credit losses has been recorded as of December 31, 2021 or 2020. If a participant ceases to make loan repayments and the Plan Administrator deems the participant loan to be a distribution, the participant loan balance is reduced and a benefit payment is recorded.
Use of Estimates
The preparation of the accompanying financial statements in conformity with GAAP requires the Plan's management to make estimates that affect the amounts reported in the financial statements, accompanying notes and supplemental schedule. Actual results could differ from those estimates.
10

PIONEER NATURAL RESOURCES USA, INC. 401(k) AND MATCHING PLAN

NOTES TO FINANCIAL STATEMENTS
December 31, 2021 and 2020


NOTE 3.    Investments
The Trustee holds the Plan's investments and executes all investment transactions. The investment funds in which participants are allowed to invest their accounts under the Plan are subject to a number of risks and uncertainties. These risks and uncertainties include, among other things, interest rate risk, credit risk, political risk, general business risks and overall market volatility risk. The investment funds have individual risk profiles that cause them to respond differently to changes in the risks and uncertainties described above. Due to the level of risk associated with the investment funds, it is reasonably possible that changes in the fair values of the investment funds may have occurred since December 31, 2021, or may occur during the near term, and that such changes could cause participants' account balances, and thus the benefits to which participants are entitled under the Plan, to differ materially from those reported as of December 31, 2021 and 2020. See Schedule H; Line 4i - Schedules of Assets (Held At End of Year) for additional information about individual investment values as of December 31, 2021.
NOTE 4.    Fair Value Measurements
Fair value is defined as the price that would be received to sell an asset or the price paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value measurements are based upon inputs that market participants use in pricing an asset or liability, which are characterized according to a hierarchy that prioritizes those inputs based on the degree to which they are observable. Observable inputs represent market data obtained from independent sources, whereas unobservable inputs reflect a company’s own market assumptions, which are used if observable inputs are not reasonably available without undue cost and effort. The three input levels of the fair value hierarchy are as follows:
•    Level 1 – quoted prices for identical assets or liabilities in active markets.
•    Level 2 – quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar assets or liabilities in markets that are not active; inputs other than quoted prices that are observable for the asset or liability (e.g. interest rates) and inputs derived principally from or corroborated by observable market data by correlation or other means.
•    Level 3 – unobservable inputs for the asset or liability.
The fair value input hierarchy level into which an asset or liability measurement in its entirety falls is determined based on the lowest level input that is significant to the measurement in its entirety.
11

PIONEER NATURAL RESOURCES USA, INC. 401(k) AND MATCHING PLAN

NOTES TO FINANCIAL STATEMENTS
December 31, 2021 and 2020


The following table presents the Plan's financial assets that are measured at fair value on a recurring basis as of December 31, 2021 and 2020, for each of the fair value hierarchy levels:
Fair Value Measurements at December 31, 2021 Using
Quoted Prices in Active Markets for Identical Assets
(Level 1)
Significant Other Observable Inputs
(Level 2)
Significant Unobservable Inputs
(Level 3)
Fair Value at December 31, 2021
Assets:
Registered investment company funds$422,768,587 $— $— $422,768,587 
Common/collective trusts— 303,937,428 — $303,937,428 
Pioneer Natural Resources Stock Fund21,757,614 — — 21,757,614 
Total recurring fair value measurements $444,526,201 $303,937,428 $— 748,463,629 
VRSTIII measured at net asset value (a)38,425,168 
Investments at fair value$786,888,797 
Fair Value Measurements at December 31, 2020 Using
Quoted Prices in Active Markets for Identical Assets
(Level 1)
Significant Other Observable Inputs
(Level 2)
Significant Unobservable Inputs
(Level 3)
Fair Value at December 31, 2020
Assets:
Registered investment company funds$630,436,432 $— $— $630,436,432 
Pioneer Natural Resources Stock Fund18,250,130 — — 18,250,130 
Total recurring fair value measurements$648,686,562 $— $— 648,686,562 
VRSTIII measured at net asset value (a)38,542,750 
Investments at fair value$687,229,312 
_______________
(a)Investments in VRSTIII have not been classified in the fair value hierarchy. Investments in VRSTIII are valued at net asset value based upon the fair values of the underlying net assets of the trusts. The net asset value of the VRSTIII is presented in this table to permit reconciliation of the fair value hierarchy to the line items presented in the Statement of Net Assets Available for Benefits.
Registered Investment Company Funds
The Plan's investments in registered investment company funds are valued using published market prices that represent the net asset value of shares or units held by the Plan as of December 31, 2021 and 2020. All significant inputs to these asset exchange values represented Level 1 independent active exchange market price inputs.
Common/Collective Trusts
Common/collective trusts are valued based on the calculated net asset value of the respective investment entity. Although the trusts themselves are not publicly traded, the underlying assets are traded on exchanges and on other markets, and price quotes for the assets held by these trusts are readily available. Additionally, the net asset value per share is determined and published daily and is the basis for current transactions. These investments are classified as Level 2 in the hierarchy.
Pioneer Natural Resources Stock Fund
Investments in the Company's common stock are valued at the last reported sales price on December 31, 2021 and 2020 on the exchange on which it is traded. As of December 31, 2021 and 2020, all significant inputs to these asset exchange values represented Level 1 independent active exchange market price inputs.
NOTE 5.    Administrative Expenses
The Employer may pay certain expenses incurred in the administration of the Plan, including expenses and fees of the Trustee, but is not obligated to do so. Any Plan expenses not paid by the Employer are paid from the Plan's
12

PIONEER NATURAL RESOURCES USA, INC. 401(k) AND MATCHING PLAN

NOTES TO FINANCIAL STATEMENTS
December 31, 2021 and 2020


forfeiture account or from Plan assets. See Note 1 for additional information about forfeitures. Administrative expenses incurred by the Plan were $762,585 for activity related to the year ended December 31, 2021.
NOTE 6.    Tax Status of the Plan
The Plan received a determination letter from the Internal Revenue Service ("IRS") dated December 19, 2014, stating that the Plan is qualified under Section 401(a) of the Code and, therefore, the related trust is exempt from taxation. Subsequent to this determination by the IRS, the Plan was amended. Once qualified, the Plan is required to operate in conformity with the Code to maintain its qualified status. The Company believes the Plan is being operated in compliance with the applicable requirements of the Code as any areas of noncompliance have been corrected in a timely manner; therefore, the Plan Administrator believes the Plan is qualified and the related trust is tax-exempt.
The financial statement effects of a tax position are recognized when the position is more likely than not, based on the technical merits, to be sustained upon examination by the IRS. The Plan Administrator has analyzed the tax positions taken by the Plan, and has concluded that as of December 31, 2021, there are no uncertain tax positions taken or expected to be taken. The Plan has recognized no interest or penalties related to uncertain tax positions. The Plan is subject to audits by taxing jurisdictions; however, there are currently no audits for any tax periods in progress.
NOTE 7.    Related Party and Party-in-Interest Transactions
Plan investments are in shares or units of registered investment company funds and common/collective trusts that are managed by the Trustee or for which the Trustee provides services. The Plan also invests in the common stock of the Company which qualify as related party transactions. Transactions in these funds, the Pioneer Natural Resources Stock Fund and loans made to participants qualify as party-in-interest transactions. These transactions are exempt from the prohibited transaction rules under ERISA.
NOTE 8.    Subsequent Events
The Plan has evaluated and noted no subsequent events through June 28, 2022, the date the financial statements were available to be issued.
13

PIONEER NATURAL RESOURCES USA, INC. 401(k) AND MATCHING PLAN
Schedule H; Line 4i - Schedule of Assets (Held At End of Year)
EIN: 75-2516853
Plan Number: 001
As of December 31, 2021
(c)
(b)Description of investment including(e)
Identity of issuer, borrower,maturity date, rate of interest, collateral,Current
(a)lessor, or similar party
par or maturity value
value
*Vanguard Fiduciary Trust CompanyVanguard Institutional Index Fund Inst'l Shares - 182,471 shares$74,044,819 
AllianceBernsteinAB Large Cap Growth Fund; Class Z - 722,167 shares71,342,881 
*Vanguard Fiduciary Trust CompanyVanguard Target Retirement 2045 Trust II - 888,090 shares47,699,310 
*Vanguard Fiduciary Trust CompanyVanguard Target Retirement 2050 Trust II - 859,739 shares46,554,847 
*Vanguard Fiduciary Trust CompanyVanguard Total Stock Market Index Fund: Inst'l Shr - 381,483 shares44,854,744 
*Vanguard Fiduciary Trust CompanyVanguard Total International Stock Index Fund: Inst'l Shr - 290,585 shares39,743,256 
*Vanguard Fiduciary Trust CompanyVanguard Target Retirement 2055 Trust II - 536,362 shares38,896,945 
*Vanguard Fiduciary Trust CompanyVanguard Retirement Savings Trust III - 38,425,168 shares38,425,168 
*Vanguard Fiduciary Trust CompanyVanguard Target Retirement 2040 Trust II - 730,590 shares38,114,884 
*Vanguard Fiduciary Trust CompanyVanguard Total Bond Market Index Fund: Inst'l Shr - 3,218,899 shares36,019,480 
*Vanguard Fiduciary Trust CompanyVanguard Target Retirement 2035 Trust II - 723,409 shares35,729,156 
*Vanguard Fiduciary Trust CompanyVanguard Target Retirement 2030 Trust II - 598,825 shares28,420,226 
*Vanguard Fiduciary Trust CompanyVanguard Windsor II Fund Admiral Shares - 332,998 shares27,262,549 
*Vanguard Fiduciary Trust CompanyVanguard Target Retirement 2025 Trust II - 526,890 shares24,563,596 
*Pioneer Natural Resources CompanyPioneer Natural Resources Stock Fund - 322,287 shares21,757,614 
*Vanguard Fiduciary Trust CompanyVanguard Target Retirement 2020 Trust II - 476,601 shares21,466,108 
*Vanguard Fiduciary Trust CompanyVanguard Wellington Fund Admiral Shares - 253,194 shares21,217,678 
*Vanguard Fiduciary Trust CompanyVanguard Extended Market Index Fund: Inst'l Shares - 141,295 shares19,596,219 
JPMorganJPMorgan Small Cap Growth Fund; Class R6 Shares - 478,473 shares12,311,108 
T. Rowe PriceT. Rowe Price Mid-Cap Growth Fund; Retail Class - 104,452 shares12,256,425 
American FundsAmerican Funds EuroPacific Growth Fund; Class R-6 - 175,322 shares11,348,579 
*Vanguard Fiduciary Trust CompanyVanguard Target Retirement 2060 Trust II - 174,085 shares9,959,424 
JPMorganJPMorgan U.S. Research Enhanced Eq Fd; R6 - 265,936 shares9,735,910 
*Participant LoansInterest rates range from 4.25% to 6.5% with various maturities8,663,494 
*Vanguard Fiduciary Trust CompanyVanguard Inflation-Protected Securities Fund: Inst'l Shares - 666,296 shares7,722,366 
*Vanguard Fiduciary Trust CompanyVanguard Target Retirement 2015 Trust II - 150,821 shares6,373,682 
*Vanguard Fiduciary Trust CompanyVanguard Mid-Cap Value Index Fund Admiral - 78,536 shares6,113,240 
*Vanguard Fiduciary Trust CompanyVanguard Target Retirement Income Trust II - 129,456 shares5,655,913 
Oppenheimer Funds Inc.Invesco Oppenheimer International Small Mid Company Fund; Class R6 - 88,234 shares5,023,187 
JPMorganJPMorgan Small Cap Equity Fund; Class R6 - 72,154 shares4,855,997 
*Vanguard Fiduciary Trust CompanyVanguard Real Estate Index Fund Admiral Shares - 26,318 shares4,323,216 
Oppenheimer Funds Inc.Invesco Oppenheimer Developing Markets Fund; Class R6 - 78,451 shares3,687,186 
*Vanguard Fiduciary Trust CompanyVanguard Small-Cap Value Index Fund Admiral - 42,026 shares3,228,053 
PIMCOPIMCO Income Fund; Institutional Class - 263,884 shares3,150,778 
Amundi Asset ManagementPioneer Bond Fund; Class K - 211,737 shares2,055,964 
Prudential Investment ManagementPGIM Global Total Return; Class R6 - 167,345 shares1,117,866 
T. Rowe PriceTRP New ERA Fund, Retail Class - 24,432 shares978,984 
*Vanguard Fiduciary Trust CompanyVanguard Federal Money Market Fund - 778,102 shares778,102 
*Vanguard Fiduciary Trust CompanyVanguard Target Retirement 2065 Trust II - 9,604 shares338,355 
Fidelity InvestmentsFidelity Advisor Stable Value Portfolio; Class III - 164,982 shares164,982 
$795,552,291 
_______________
*Party-in-interest
Note: Column (d) is not applicable since all investments are participant directed.
14


Pursuant to the requirements of the Securities Exchange Act of 1934, the Plan Administrator has duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized.


PIONEER NATURAL RESOURCES USA, INC.
401(k) AND MATCHING PLAN



Date: June 28, 2022By:/s/ Margaret M. Montemayor
Margaret M. Montemayor
Vice President and Chief Accounting Officer

15


INDEX TO EXHIBITS
Exhibit
Number
 
Description
23.1 (a)
_____________
(a) Filed herewith.

16

EXHIBIT 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement No. 333-39249 and 333-178671 on Form S-8 of Pioneer Natural Resources Company of our report dated June 28, 2022, with respect to the statements of net assets available for benefits of the Pioneer Natural Resources USA 401(k) and Matching Plan as of December 31, 2021 and 2020, the related statement of changes in net assets available for benefits for the year ended December 31, 2021, and the related supplemental schedule of Form 5500, Schedule H, Line 4i- Schedule of Assets (Held at End of Year) as of December 31, 2021, which report appears in the December 31, 2021, annual report on Form 11-K of the Pioneer Natural Resources USA 401(k) and Matching Plan for the year ended December 31, 2021.

/s/ Whitley Penn LLP

Dallas, Texas
June 28, 2022

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