UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                                    FORM 8-K
                                 CURRENT REPORT
     PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
       Date of Report (Date of earliest event reported): January 30, 2022
                        PIONEER NATURAL RESOURCES COMPANY
                       -----------------------------------
             (Exact name of Registrant as specified in its charter)
           DELAWARE                     1-13245               75-2702753
- -------------------------------       -----------       ---------------------
(State or other jurisdiction of       Commission           (I.R.S. Employer
incorporation or organization)        File Number       Identification Number)
1400 WILLIAMS SQUARE WEST, 5205 N. O'CONNOR BLVD., IRVING, TEXAS      75039
- ----------------------------------------------------------------    ----------
            (Address of principal executive offices)                (Zip code)
       Registrant's Telephone Number, including area code : (972) 444-9001
                                 Not applicable
              (Former name, former address and former fiscal year,
                          if changed since last report)

PIONEER NATURAL RESOURCES COMPANY TABLE OF CONTENTS Page Item 5. Other Events............................................ 3 Item 7. Financial Statements, Pro Forma Financial Information and Exhibits: (c) Exhibits........................................... 3 Signatures....................................................... 4 Exhibit Index.................................................... 5 2

PIONEER NATURAL RESOURCES COMPANY ITEM 5. OTHER EVENTS On January 30, 2001, Pioneer Natural Resources Company issued a press release reporting its financial and operating results for the three and twelve month periods ended December 31, 2000. The press release is attached hereto as an exhibit and incorporated by reference herein. ITEM 7. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS (c) Exhibits 99.1 Press Release dated January 30, 2022 3

PIONEER NATURAL RESOURCES COMPANY S I G N A T U R E S Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. PIONEER NATURAL RESOURCES COMPANY Date: February 2, 2022 By: /s/ RICH DEALY ----------------------------------------- Rich Dealy Vice President and Chief Accounting Officer 4

PIONEER NATURAL RESOURCES COMPANY EXHIBIT INDEX Exhibit No. Description 99.1* Press Release dated January 30, 2022 - ------------- * filed herewith 5

                                                                    EXHIBIT 99.1
                                  NEWS RELEASE
                      Investor Relations Contact: Susan Spratlen  (972) 444-9001
          Pioneer Reports Record Fourth Quarter and Annual 2000 Results
             Quarterly Net Income Increases Tenfold over Prior Year
Dallas,   Texas,   January  30,  2022  --  Pioneer  Natural   Resources  Company
("Pioneer")(NYSE:PXD)  (TSE:PXD) today announced financial and operating results
for the quarter and year ended December 31, 2000.
Fourth Quarter 2000 Results
Pioneer  reported  record  net income of $84  million  or $0.85 per share,  on a
diluted  basis,  for the  fourth  quarter  of 2000.  Fourth  quarter  net income
included a $6 million or $0.06 per share gain on the disposition of assets and a
$3 million or $0.03 per share  mark-to-market  charge related to derivatives not
treated as hedges. For the same period last year, Pioneer reported net income of
$8 million or $0.08 per share.  The same period last year net income  included a
loss on sale of assets of $3  million or $0.03 per share and $4 million or $0.04
per share of mark-to-market income related to derivatives not treated as hedges.
Scott D.  Sheffield,  Chairman  and CEO stated,  "Closing  another  quarter with
record  earnings is very exciting,  but I am even more excited about our future.
Pioneer's core properties  stand out as some of the best in the industry.  Since
1997,  we have been busy  building  an  exceptional  exploration  program  while
continuing  a track  record  of  development  success.  Recent  discoveries  are
expected to add significant new production in 2002 and 2003, and our exploration
program for 2001 is focused on the drill bit with 26 exploration wells planned."
Cash flow from operations for the 2000 fourth quarter was $145 million  compared
to $69 million for the fourth quarter of 1999. Discretionary cash flow increased
86% to $157 million and EBITDAX  rose 56% to $194  million  compared to the 1999
fourth quarter. Discretionary cash flow and EBITDAX calculations are defined and
detailed on an attached schedule.
During the quarter Pioneer reduced long-term debt by $25 million and repurchased
1.1 million  common shares at an average price of $13.44 per share.  On December
31, 2000, the Company had 98.4 million common shares outstanding.
Fourth quarter oil sales  averaged  34,522 barrels per day (BPD) and natural gas
liquid  sales  averaged  21,827  BPD.  Natural  gas sales in the fourth  quarter
averaged 352 million cubic feet per day (MMcfpd).  On an oil  equivalent  basis,
sales  averaged  115,032  BPD. In order to take  advantage  of high  natural gas
prices  relative to oil prices,  Pioneer elected during a portion of the quarter
not to recover ethane from natural gas produced in the  Mid-continent  area. The
ethane remaining in the natural gas stream raises the Btu content of the natural
gas and the price  realization  per thousand cubic feet (Mcf). As a consequence,
U.S.  liquids  production  was reduced by  approximately  1,200 BPD for the days
during  which  ethane was not  recovered.  In  addition,  Argentine  natural gas
production  fell 21% from the prior quarter,  primarily as a result of increased
availability of hydroelectric power, displacing demand for gas power generation.
Realized  prices  (including the effects of commodity  price hedges) for oil and
natural gas liquids  for the fourth  quarter  were $25.48 and $23.13 per barrel,
respectively. The realized price for natural gas was $3.85 per Mcf.

Fourth quarter production costs averaged $5.03 per barrel oil equivalent (BOE), increasing 15% over the prior quarter primarily due to higher production taxes and field fuel costs resulting from higher oil and gas prices. Exploration and abandonment costs of $23 million for the quarter included $11 million of geologic and geophysical costs including seismic costs, $2 million of non-cash leasehold abandonments including expired leases and $10 million of exploration costs. For the same quarter last year, Pioneer reported oil sales of 34,849 BPD, natural gas liquid sales of 23,537 BPD, and natural gas sales of 363 MMcfpd. Because of asset divestitures, the quarter-to- quarter volumes are not comparable. Realized prices for the 1999 fourth quarter were $19.09 per barrel for oil, $15.76 per barrel for natural gas liquids and $2.04 per Mcf for natural gas. 2000 Annual Results For the twelve months ended December 31, 2000, Pioneer reported net income of $152 million or $1.53 per share on a diluted basis. Annual net income included a $34 million or $0.34 per share gain on the disposition of assets, a $59 million or $0.59 per share mark-to-market charge related to derivatives not treated as hedges and a $12 million or $0.12 per share extraordinary loss on early extinguishment of debt. Earnings as adjusted for the above items were $189 million or $1.90 per share. For the same period last year, Pioneer reported a net loss of $22 million or $0.22 per share. The prior year net loss included a loss on sale of assets of $24 million or $0.24 per share and a $27 million or $0.27 per share mark-to-market charge related to derivatives not treated as hedges. Cash flow from operations for 2000 was $430 million compared to $255 million for 1999. Oil sales for the year averaged 34,249 BPD and natural gas liquid sales averaged 22,894 BPD. Natural gas sales in 2000 were 371 MMcfpd. On an oil equivalent basis, sales averaged 119,002 BPD. Realized prices for oil and natural gas liquids were $24.01 and $20.27 per barrel, respectively. The realized price for natural gas was $2.81 per Mcf. In 1999, Pioneer reported oil sales of 42,339 BPD, natural gas liquid sales of 25,308 BPD and natural gas sales of 434 MMcfpd. Because of asset divestitures during 1999, the year-to-year volumes are not comparable. Realized prices for 1999 were $15.36 per barrel for oil, $11.64 per barrel for natural gas liquids and $1.90 per Mcf for natural gas. For the year Pioneer reduced long-term debt by $167 million from $1.75 billion or $2.88 per BOE of proved reserves, to $1.58 billion or $2.51 per BOE. The Company repurchased 2.3 million common shares at an average price of $11.79 per share. Operations Update Pioneer is currently utilizing 16 rigs in its active drilling program in the United States, with six rigs running in the Permian Basin, two rigs running in the Mid-continent area and eight rigs running in the Gulf Coast area, including the East Texas Bossier area. Development of the Canyon Express natural gas project in the deepwater Gulf of Mexico is moving forward as planned with first production anticipated in mid-2002. The Company expects to sanction the Devils Tower project and has budgeted capital to begin development during 2001 with first oil production expected in late 2002 or 2003.

In South Texas, Pioneer's exploitation efforts in the Pawnee field have increased net natural gas production from the field by over 135% to approximately 26 MMcfpd in December 2000. Utilizing advanced 3-D seismic modeling in this Edwards Reef play, the Company has completed eight horizontal reentries and four new horizontal wells. Five new wells and two horizontal reentries are scheduled for 2001. Pioneer is also expanding its development program to include surrounding fields which could add a significant number of locations to the Company's inventory. In the Gulf of Mexico, Pioneer has accelerated its efforts with two deep wells drilled off existing platforms. At Pioneer-operated Eugene Island 208 (75% WI), a successful well with multiple oil and gas pays has been completed and tested at a combined gross rate of 1,250 BPD and 950 Mcf per day at a depth of 11,900 feet. The exploitation well penetrated 4 pay intervals currently producing in the block and 2 new undeveloped exploratory pays. This well sets up additional development and exploration opportunities in the area. At High Island Block A-582 (5.5% WI), a Texaco-operated well encountered more than 230 feet of pay. The well is in 440 feet of water and was drilled to a total depth of 15,147 feet. A second well is drilling to further delineate the field. In Canada, Pioneer has initiated its winter access program in northeast British Columbia with five rigs running and plans to drill approximately 35 development wells and tie-in 19 previously drilled wells before spring. Four exploration wells are also planned. Through its development program, the Company expects Canadian natural gas production to grow by approximately 10% over 2000 rates. In Argentina, the Company's drilling is focused on oil development with three rigs running. Eight to ten exploration wells are planned in the 2001 program. As previously announced, Pioneer has had significant success in the Bajo Barda Gonzalez drilling program in Argentina's Neuquen Basin, and expects to increase oil production from Argentina by approximately 25% during 2001. In South Africa, Pioneer has completed the drilling of its Boomslang prospect and has encountered over 100 feet of net pay. The Company has set pipe, and expects to test production from the well over the next two to three weeks. The Company anticipates that a second well will be drilled on the prospect later this year. Pioneer has budgeted capital to begin development of the Sable oil field during 2001 with first production expected in late 2002 or early 2003. Financial Outlook The following statements are estimates based on current expectations. The statements are forward- looking, as addressed in the paragraph at the bottom of this release. Actual results may differ materially from these estimates which do not reflect the potential impact of acquisitions or divestitures that may be completed or other unforeseen events that may occur after the date of this release. First quarter production is expected to average 112 to 114 MBPD on an oil equivalent basis. United States liquids production continues to be reduced by approximately 1,200 barrels per day for the days during which ethane is not recovered. Severe weather also negatively impacted United States Mid-continent production during January. In addition, natural gas production from the Tierra del Fuego area in Argentina continues to be lower than normal as a result of increased availability of hydroelectric power.

The Company has oil and natural gas hedges that will impact first quarter realizations. There are swap contracts in place for 16,000 BPD of oil at $28.49 per barrel. Collars cover 5,000 BPD of oil with floors at $17.00 and ceilings at $20.09 per barrel and 2,000 BPD of oil with floors at $25.00 and ceilings at $31.43. There are swap contracts in place for 148.4 MMcfpd of natural gas at $6.75 per Mcf. Collars cover 54.5 MMcfpd of natural gas with floors at $2.25 and ceilings at $2.90 per Mcf. All prices are stated on an approximate NYMEX equivalent basis. During the first quarter, lease operating expenses (including production and ad valorem taxes) are expected to average $5.70 to $6.15 per BOE, primarily due to higher production taxes and field fuel costs resulting from higher oil and gas prices. Depreciation, depletion and amortization is expected to average $4.90 to $5.10 per BOE. Total exploration and abandonment expense is expected to be $15 million to $30 million. General and administrative expense is expected to be $9 million to $10 million. Interest expense is expected to be $38 million to $39 million, including approximately $3 million of non-cash interest. The effective tax rate is expected to be approximately 0% to 2% of pre- tax income as the Company benefits from the carryforward of prior years' net operating losses for federal income tax purposes. Pioneer has targeted production growth from 2000 levels of 1% to 4% in 2001 and 15% to 24% by 2002. The capital budget for 2001 is expected to be approximately $430 million. A similar capital budget is anticipated in 2002. For the first quarter of 2001, cost incurred is expected to range from $135 to $145 million. Earnings Conference Call On Tuesday, January 30, 2001, at 9:00 a.m. Central, investors will have the opportunity to listen to the fourth quarter earnings call and view a presentation over the Internet via Pioneer's website located at http://www.pioneernrc.com. At the website, select the "Investors" button at the top of the page; then select "Earnings Calls" from the list across the bottom of the page. To listen to the live call, please go to the website approximately ten minutes early to register, download and install any necessary audio software. For those who cannot listen to the live broadcast, a replay will be available on the website shortly after the call. Alternately, you may dial (800) 946-0782 to listen to the conference call and view the accompanying visual presentation at the Internet address above. A telephone replay will be available through February 13 by dialing (888) 203-1112--confirmation code: 465751. Pioneer is a large independent oil and gas exploration and production company with operations in the United States, Canada, Argentina and South Africa. Pioneer's headquarters are in Dallas. For more information, visit Pioneer's website at www.pioneernrc.com. Financial statements attached. Except for historical information contained herein, the statements in this Press Release are forward-looking statements that are made pursuant to the Safe Harbor Provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements, and the business prospects of Pioneer Natural Resources Company, are subject to a number of risks and uncertainties which may cause the Company's actual results in future periods to differ materially from the forward-looking statements. These risks and uncertainties include, among other things, volatility of oil and gas prices, product supply and demand, competition, government regulation or action, litigation, the costs and results of drilling and operations, the Company's ability to replace reserves or implement its business plans, access to and cost of capital, uncertainties about estimates of reserves, quality of technical data, and environmental risks. These and other risks are described in the Company's 10-K and 10-Q Reports and other filings with the Securities and Exchange Commission.

PIONEER NATURAL RESOURCES COMPANY CONSOLIDATED STATEMENTS OF OPERATIONS (in thousands, except for per share data) (Unaudited) Three months ended Year ended December 31, December 31, --------------------- --------------------- 2000 1999 2000 1999 --------- --------- --------- --------- Revenues: Oil and gas $ 251,829 $ 163,409 $ 852,738 $ 644,646 Interest and other 11,634 8,518 25,775 89,657 Gain (loss) on disposition of assets, net 6,433 (2,892) 34,184 (24,168) -------- -------- -------- -------- 269,896 169,035 912,697 710,135 -------- -------- -------- -------- Costs and expenses: Oil and gas production 53,275 36,069 189,265 159,530 Depletion, depreciation and amortization - oil and gas 48,919 47,196 199,205 218,250 Depletion, depreciation and amortization - other 3,990 4,263 15,733 17,797 Impairment of oil and gas properties - - - 17,894 Exploration and abandonments 23,348 24,382 87,550 65,974 General and administrative 10,003 11,009 33,262 40,241 Reorganization - 729 - 8,534 Interest 39,540 39,918 161,952 170,344 Other 6,837 (1,660) 67,231 34,631 -------- -------- -------- -------- 185,912 161,906 754,198 733,195 -------- -------- -------- -------- Income (loss) before income taxes and extraordinary item 83,984 7,129 158,499 (23,060) Income tax benefit 200 1,100 6,000 600 -------- -------- -------- -------- Income (loss) before extraordinary item 84,184 8,229 164,499 (22,460) Extraordinary item - loss on early extinguishment of debt, net of tax - - (12,318) - -------- -------- -------- -------- Net income (loss) $ 84,184 $ 8,229 $ 152,181 $ (22,460) ======== ======== ======== ======== Net income (loss) per share: Basic: Income (loss) before extraordinary item $ .86 $ .08 $ 1.65 $ (.22) Extraordinary item - - (.12) - -------- -------- -------- -------- Net income (loss) $ .86 $ .08 $ 1.53 $ (.22) ======== ======== ======== ======== Diluted: Income (loss) before extraordinary item $ .85 $ .08 $ 1.65 $ (.22) Extraordinary item - - (.12) - -------- -------- -------- -------- Net income (loss) $ .85 $ .08 $ 1.53 $ (.22) ======== ======== ======== ======== Weighted average basic shares outstanding 98,367 100,319 99,378 100,307 ======== ======== ======== ========

PIONEER NATURAL RESOURCES COMPANY CONDENSED CONSOLIDATED BALANCE SHEETS (in thousands) (Unaudited) December 31, December 31, 2000 1999 ----------- ----------- ASSETS Current assets: Cash and cash equivalents $ 26,159 $ 34,788 Accounts receivable 125,654 118,575 Inventories 14,842 13,721 Deferred income taxes 4,800 5,800 Other current assets 19,936 10,252 --------- --------- Total current assets 191,391 183,136 --------- --------- Property, plant and equipment, at cost: Oil and gas properties, using the successful efforts method of accounting 3,417,094 3,254,918 Accumulated depletion, depreciation and amortization (902,139) (751,956) --------- --------- 2,514,955 2,502,962 --------- --------- Deferred income taxes 84,400 83,400 Other assets, net 163,689 159,975 --------- --------- $2,954,435 $2,929,473 ========= ========= LIABILITIES AND STOCKHOLDERS' EQUITY Current liabilities: Current maturities of long-term debt $ - $ 828 Accounts payable 115,446 86,868 Interest payable 38,142 36,045 Other current liabilities 62,926 73,072 --------- --------- Total current liabilities 216,514 196,813 --------- --------- Long-term debt, less current maturities 1,578,776 1,745,108 Other noncurrent liabilities 225,740 169,438 Deferred income taxes 28,500 43,500 Stockholders' equity 904,905 774,614 --------- --------- $2,954,435 $2,929,473 ========= =========

PIONEER NATURAL RESOURCES COMPANY CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (in thousands) (Unaudited) Three months ended Year ended December 31, December 31, ---------------------- ---------------------- 2000 1999 2000 1999 --------- --------- --------- --------- Cash flows from operations: Net income (loss) $ 84,184 $ 8,229 $ 152,181 $ (22,460) Depletion, depreciation and amortization 52,909 51,459 214,938 236,047 Impairment of oil and gas properties - - - 17,894 Exploration expenses, including dry holes 20,686 21,369 66,959 50,030 Deferred income taxes (1,000) - (10,600) - (Gain) loss on disposition of assets, net (6,433) 2,892 (34,184) 24,168 Interest related amortization 3,520 3,448 12,699 12,520 Derivative mark-to-market 3,021 (4,350) 58,518 26,964 Extraordinary item, net of tax - - 12,318 - Other noncash items (2,255) (1,654) 1,258 (40,350) Changes in operating assets and liabilities: Accounts receivable 4,227 (14,268) (7,486) (7,393) Inventories (2,614) (3,265) (2,789) (952) Other current assets (11,889) (3,097) (9,896) (2,335) Accounts payable 23,756 9,430 26,260 (18,683) Interest payable 315 12,210 2,097 2,851 Other current liabilities (23,425) (13,876) (52,177) (23,067) -------- -------- -------- -------- Net cash provided by operating activities 145,002 68,527 430,096 255,234 Net cash provided by (used in) investing activities (108,575) (91,131) (194,501) 198,995 Net cash provided by (used in) financing activities (48,155) 23,975 (244,068) (479,069) -------- -------- -------- -------- Net increase (decrease) in cash and cash equivalents (11,728) 1,371 (8,473) (24,840) Effect of exchange rate changes on cash and cash equivalents (11) 171 (156) 407 Cash and cash equivalents, beginning of period 37,898 33,246 34,788 59,221 -------- -------- -------- -------- Cash and cash equivalents, end of period $ 26,159 $ 34,788 $ 26,159 $ 34,788 ======== ======== ======== ========

PIONEER NATURAL RESOURCES COMPANY SUMMARY PRODUCTION AND PRICE DATA Three months ended Year ended December 31, December 31, ---------------------- ---------------------- 2000 1999 2000 1999 --------- --------- --------- --------- Average Daily Production: Oil (Bbls) - U.S. 23,873 26,068 24,561 31,366 Argentina 9,721 7,948 8,847 6,443 Canada 928 833 841 4,530 --------- --------- --------- --------- Total 34,522 34,849 34,249 42,339 Natural gas liquids (Bbls) - U.S. 20,492 22,281 21,538 23,875 Argentina 571 542 527 594 Canada 764 714 829 839 --------- --------- --------- --------- Total 21,827 23,537 22,894 25,308 Gas (Mcf) - U.S. 218,810 239,695 229,316 290,670 Argentina 88,710 86,652 97,526 94,457 Canada 44,575 36,560 44,315 49,003 --------- --------- --------- --------- Total 352,095 362,907 371,157 434,130 Total Production: Oil (MBbls) 3,176 3,206 12,535 15,454 Natural gas liquids (MBbls) 2,008 2,165 8,379 9,237 Gas (MMcf) 32,393 33,387 135,843 158,457 Equivalent barrels (MBOE) 10,583 10,936 43,555 51,101 Average Price*: Oil (per Bbl) - U.S. $ 24.21 $ 17.88 $ 22.07 $ 15.03 Argentina $ 28.47 $ 22.84 $ 29.09 $ 18.41 Canada $ 26.92 $ 21.13 $ 27.50 $ 13.28 Average $ 25.48 $ 19.09 $ 24.01 $ 15.36 Natural gas liquids (per Bbl) - U.S. $ 22.84 $ 15.47 $ 20.05 $ 11.61 Argentina $ 25.40 $ 19.98 $ 22.91 $ 11.30 Canada $ 29.21 $ 21.56 $ 24.32 $ 12.62 Average $ 23.13 $ 15.76 $ 20.27 $ 11.64 Gas (per Mcf) - U.S. $ 4.87 $ 2.37 $ 3.50 $ 2.17 Argentina $ 1.13 $ 1.08 $ 1.19 $ 1.10 Canada $ 4.24 $ 2.15 $ 2.88 $ 1.82 Average $ 3.85 $ 2.04 $ 2.81 $ 1.90 - --------------- * Average prices include the effects of commodity hedges.

PIONEER NATURAL RESOURCES COMPANY SUPPLEMENTAL INFORMATION (in thousands) (Unaudited) Discretionary cash flow and EBITDAX (as defined below) are presented herein because of their wide acceptance as financial indicators of a company's ability to internally fund exploration and development activities and to service or incur debt. Discretionary cash flow and EBITDAX should not be considered as alternatives to net cash provided by operating activities, net income (loss) or income (loss) from continuing operations, as defined by generally accepted accounting principles. Discretionary cash flow and EBITDAX should also not be considered as indicators of the Company's financial performance, as alternatives to cash flow, as measures of liquidity or as being comparable to other similarly titled measures of other companies. Three months ended Year ended December 31, December 31, ---------------------- ---------------------- 2000 1999 2000 1999 --------- --------- --------- --------- Discretionary cash flows*: Net income (loss) $ 84,184 $ 8,229 $ 152,181 $ (22,460) Depletion, depreciation and amortization 52,909 51,459 214,938 236,047 Impairment of oil and gas properties - - - 17,894 Exploration and abandonments 23,348 24,382 87,550 65,974 Deferred income taxes (1,000) - (10,600) - (Gain) loss on disposition of assets, net (6,433) 2,892 (34,184) 24,168 Interest related amortization 3,520 3,448 12,699 12,520 Derivative mark-to-market 3,021 (4,350) 58,518 26,964 Extraordinary item, net of tax - - 12,318 - Other noncash items (2,255) (1,654) 1,258 (40,350) -------- -------- -------- -------- Discretionary cash flow $ 157,294 $ 84,406 $ 494,678 $ 320,757 ======== ======== ======== ======== - ------------- * Discretionary cash flows equal cash flows from operations before working capital changes and exploration and abandonments. EBITDAX**: Net income (loss) $ 84,184 $ 8,229 $ 152,181 $ (22,460) Depletion, depreciation and amortization 52,909 51,459 214,938 236,047 Impairment of oil and gas properties - - - 17,894 Exploration and abandonments 23,348 24,382 87,550 65,974 Consolidated interest expense 39,540 39,918 161,952 170,344 Consolidated income taxes (200) (1,100) (6,000) (600) (Gain) loss on disposition of assets, net (6,433) 2,892 (34,184) 24,168 Derivative mark-to-market 3,021 (4,350) 58,518 26,964 Extraordinary item, net of tax - - 12,318 - Other noncash expenses (2,255) 2,876 1,455 11,494 -------- -------- -------- -------- $ 194,114 $ 124,306 $ 648,728 $ 529,825 ======== ======== ======== ======== - ------------- ** "EBITDAX" represents earnings before depletion, depreciation and amortization expense; impairment of oil and gas properties; exploration and abandonments; consolidated interest expense; consolidated income taxes; gain or loss on the disposition of assets; extraordinary items; and, other noncash expenses.

PIONEER NATURAL RESOURCES COMPANY RESERVE SUMMARY December 31, 2021 Oil NGL Gas (MMBbl) (MMBbl) (Bcf) MMBOE ------- ------- ------- ------- United States...................... 138 128 1,355 492 Argentina.......................... 28 8 408 104 Canada............................. 1 3 133 26 South Africa....................... 6 - - 6 ------- ------- ------- ------- Total Proved Reserves.......... 173 139 1,896 628 ======= ======= ======= =======

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