ࡱ>  l \pThe Free Software Foundation B=PF0*8X@"1 Helvetica1Courier1 Courier New1 Courier New1 Helvetica$#,##0_);($#,##0)$#,##0_);[Red]($#,##0)$#,##0.00_);($#,##0.00)$#,##0.00_);[Red]($#,##0.00)-**_($* #,##0_);_($* (#,##0);_($* "-"_);_(@_)*)'_(* #,##0_);_(* (#,##0);_(* "-"_);_(@_)5,2_($* #,##0.00_);_($* (#,##0.00);_($* "-"??_);_(@_)2+/_(* #,##0.00_);_(* (#,##0.00);_(* "-"??_);_(@_)2$#,##0.00;[Red]$#,##0.003$#,##0.00;[Red]($#,##0.00)4$#,##0;[Red]($#,##00)50.00%;[Red](0.00%)6 0%;[Red](0%)7#,##0.00;[Red](#,##0.00)8#,##0;[Red](#,##0)                + ) , *   Ј ~~ ؈ ~~#؈ ~~ ؈ ~~8#܈ ~~9#܈ ~~4#܈ ~~3#܈ ~~7#܈ ~~83ffff̙̙3f3fff3f3f33333f33&PIONEER NATURAL RESOURCES COMPAYes No&TABLE OF CONTENTS>Balance Sheet VBalance Sheet (1))oIncome Statement&ACONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018wJune 30 2018 (1)tJune 30 2018 (2)&yFinancial instruments not carri Balance Sheet (2)E.Balance Sheet (3)?June 30 2018 (3)&QQNGL production derivative activ^June 30 2018 (4)3sJune 30 2018 (5)June 30 2018 (6)AJune 30 2018 (7)NOTE 6 Exploratory Costs#NOTE 6 Exploratory Costs (1)oStockbased compensation&NOTE 9 Asset Retirement Obligat!OImpact of ASC 606 adoption&Disaggregated revenue from cont&NOTE 12 Interest and Other Incop NOTE 13 Other ExpenseU2NOTE 14 Income Taxes#?NOTE 15 Net Income Per Share#NNOTE 15 Net Income Per S (1)&^Adoption of New Accounting Stan&SnOperations and Drilling Highlig&Operations and Drilling Hig (1)&EOperations and Drilling Hig (2)&BOperations and Drilling Hig (3)Oil and gas revenues&PIONEER NATURAL RESOURCES C (1)"Derivative gains losses net&PIONEER NATURAL RESOURCES C (2)#Oil and gas production costs&PIONEER NATURAL RESOURCES C (3)&Exploration and abandonments ex&"Item 3 Quantitative and Qualita L/Interest rate sensitivity&DPIONEER NATURAL RESOURCES C (4)&jPurchases of Equity Securities K}Exhibits4 EXHIBIT 121Mine Safety Disclosure l  Z dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1Yes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } 2} $ }      $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018)!PIONEER NATURAL RESOURCES COMPANY    Delaware   75-2702753' (State or other jurisdiction of  (I.R.S. Employer& incorporation or organization)  Identification No.)2*5205 N. O'Connor Blvd., Suite 200, Irving,~ ~Texas0((Address of principal executive offices) (Zip Code)$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/0ymaUI%G/xl`8=PF0*8X> @ l  U& dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPATABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } U} $ } 8} $ } } $ } $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018Yes No        Large accelerated filer  ?  Accelerated filer  ?     Non-accelerated filer 7 /o (Do not check if a smaller reporting company) ! Smaller reporting company  ?Emerging growth company ?$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/,I||pdb\=PF0*8X> @ l  @;5= dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } y } :}  @    $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018TABLE OF CONTENTS      Page7 /Cautionary Statement Concerning Forward-Looking~   Statements4,Definitions of Certain Terms and Conventions~  Used Herein%PART I. FINANCIAL INFORMATIONItem 1.Financial Statements.&Consolidated Balance Sheets as of June~ &30, 2018 and December 31, 2017-%Consolidated Statements of Operations~ 3+for the three and six months ended June 30,2018 and 20170(Consolidated Statement of Equity for the~ "&six months ended June 30, 2018-%Consolidated Statements of Cash Flows~ &Dl}qeY5P9-q%=p !"#$%&'()*+,-./0123456789:;<=>? 2 *for the six months ended June 30, 2022 and!~ !"""#2#*Notes to Consolidated Financial Statements~ #*$$$%Item 2.,%$Management's Discussion and Analysis~ %f&8&0of Financial Condition and Results of Operations'''(Item 3.0((Quantitative and Qualitative Disclosures~ ())About Market Risk***+Item 4.+Controls and Procedures~ +,"-PART II. OTHER INFORMATION-.../Item 1./Legal Proceedings~ /0001Item 1A.1 Risk Factors~ 12223Item 2./3'Unregistered Sales of Equity Securities~ 344and Use of Proceeds5556Item 4.6Mine Safety Disclosures~ 67778Item 6.8Exhibits~ 899: Signatures~ :;<$=____________________________1>)Created by Morningstar Document Research.0?(http://documentresearch.morningstar.com/D^l0 sOi]+kG`<=PF0*8X> @R ??>>==::--   l  ,O1T dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } U5} $ ,    $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018Balance Sheet          June 30,   December 31, ~  ~    (Unaudited)  ASSETSCurrent assets:!Cash and cash equivalents~ b ~ Short-term investments~ ~ Accounts receivable: Trade, net~ V~  Due from affiliates -~ Income taxes receivable~ ~  Inventories~ ~ RAssets held for sale~ n - Derivatives~  ~ .Other~ ^~ ^Total current assets~ n&~ ./'Property, plant and equipment, at cost:4,Oil and gas properties, using the successful%efforts method of accounting:Proved properties~ Z8~ >Unproved properties~ ~ +#Accumulated depletion, depreciation~ ~ RpDn lui]J82:!yf= !"#$%&'()*+ and amortization+!#Total property, plant and equipment~ !*!!~ !ڷ!"Long-term investments~ """~ " "#Goodwill~ #6##~ #:#)$!Other property and equipment, net~ $6$$~ $$%Other assets, net~ %%%~ %%&~ &&&~ & &'($)____________________________1*)Created by Morningstar Document Research.0+(http://documentresearch.morningstar.com/uSj=PF0*8X> @z/++**))&&&&%%%%$$$$####""""!!!!      l  1+g6m dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetIncome Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } :} $ 1    $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018Balance Sheet          June 30,   December 31, ~  ~    (Unaudited)  LIABILITIES AND EQUITYCurrent liabilities:Accounts payable:Trade~ b~ ZDue to affiliates~ n~ Interest payable~ ~ )!Current portion of long-term debt -~ !Liabilities held for sale~ * - Derivatives~ ~ Other~ ~ !Total current liabilities~ Z#~ B!Long-term debt~ #~ # Derivatives~ f~ ^Deferred income taxes~ ~ Other liabilities~ ~ Equity:1)Common stock, $.01 par value; 500,000,000~  ~  6.shares authorized; 174,294,691 and 173,796,7436.shares issued as of June 30, 2022 and DecemberDS lui]J(R-r!b M !"#$%&'()*+,-./0 31, 2017, respectively"!Additional paid-in capital~ !ތ!!~ !:!7"/Treasury stock at cost: 3,893,965 and 3,608,132~ "V""~ ""3#+shares as of June 30, 2022 and December 31,$2017, respectively%Retained earnings~ %2+%%~ %'%8&0Total equity attributable to common stockholders~ &j&&~ &*&0'(Noncontrolling interests in consolidated~ ' ''~ ''( subsidiaries) Total equity~ )r))~ )>)%*Commitments and contingencies*****+~ +++~ + +,-$.____________________________1/)Created by Morningstar Document Research.00(http://documentresearch.morningstar.com/&@xK[C:."=PF0*8X> @100//..++++))))''''&&&&%%%%""""!!!!      l  5؆6 dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } =} $ 5    $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018Income Statement                  Three Months Ended  Six Months Ended  June 30,  June 30, ~  ~  ~  ~ "Revenues and other income:   Oil and gas~ ~  ~  '  ~ &Sales of purchased oil and gas~ ~ v~  !  ~ b Interest and other~ &~ B~  j  ~ z&Derivative gains (losses), net~ j~ ~  *  ~ z*"Gain on disposition of assets, net~ >~  ~  N  ~ 6~  ~ ~  B  ~ *+Costs and expenses:  Oil and gas production~ ~ N~  "  ~ 'Production and ad valorem taxes~ ~ ~  J  ~ 0(Depletion, depreciation and amortization~ ~ V~  ~   ~  Purchased oil and gas~  ~ ~     ~  ,$Impairment of oil and gas properties~ 6 -~  6  ~ v$Exploration and abandonments~ r~ j~    ~ "General and administrative~ ~~ F~    ~ 1)Accretion of discount on asset retirement~ ~ ~  "  ~ * obligationsInterest~ ~ ~    ~ FOther~ 2~ ~    ~ Dl~rfZH&#mCg !"#$%&'()*+,-./01234 ~   ~ R  ~ =  ~ & "!Income before income taxes~ !J!!~ !!!~ ! ! ! ~ !f!"Income tax provision~ """~ """~ " " " ~ ""# Net income~ ###~ ###~ # # # ~ ##/$'Net loss attributable to noncontrolling~ $$$ $-$$~ $ $ $  $-$% interests6&.Net income attributable to common stockholders~ & &&~ &&&~ & & & ~ &&'''''' ' ';(3Basic and diluted net income per share attributable(RQ?((((\?((( Q?( ( ((\?()to common stockholders****** * *,+$Weighted average shares outstanding:+++++ + +,Basic~ ,,,~ ,,,~ , , , ~ ,,-Diluted~ ---~ ---~ - - - ~ --...... . .$/Dividends declared per share /$-// /$-/// {Gz?/ / /{Gz?/01$2____________________________13)Created by Morningstar Document Research.04(http://documentresearch.morningstar.com/. h hpsS7+=PF0*8X> @s443322////// //------ --,,,,,, ,,(((((( ((&&&&&& &&$$$$$$ $$###### ##"""""" ""!!!!!! !!                           l  j dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } 1} } $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018( CONSOLIDATED STATEMENT OF EQUITY                              2 *Equity Attributable To Common Stockholders      Shares  Common   Additional  Treasury  Retained  Noncontrolling   Total Equity   Outstanding  Stock  Paid-in  Stock  Earnings   InterestsCapital(in thousands)  'Balance as of December 31, 2017~ 6c ~  ~ :  ~  ~ '~ ~ >,$Dividends declared ($0.16 per share) - - -    -~  -~ -%Exercise of long-term incentive stock~  - -  ~   - -~ ,$options and employee stock purchases#Purchases of treasury stock~ n - -  ~  6 - -~ 6Compensation costs:  "Vested compensation awards~  - -    - - - -1)Compensation costs included in net income - -~     - - -~  Net income - - -    -~ ~ ~ #Balance as of June 30, 2018~ f ~  ~ ތ  ~  V~ 2+~  ~ r$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/@]DznbVJ|d\1%d=PF0*8X> @C                               l  AK dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } U5} $ A    $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018 Cash Flows          Six Months Ended  June 30, ~  ~ -%Cash flows from operating activities: Net income~ ~ .&Adjustments to reconcile net income to2*net cash provided by operating activities:0(Depletion, depreciation and amortization~ ~ ~  ,$Impairment of oil and gas properties~ 6~ v2*Impairment of inventory and other property~ ~ and equipment1)Exploration expenses, including dry holes~ &~ JDeferred income taxes~ ~ j*"Gain on disposition of assets, net~ ~ 1)Accretion of discount on asset retirement~ "~ * obligationsInterest expense~  ~  #Derivative related activity~ ~ 0(Amortization of stock-based compensation~ ~ Other~ ~ 3+Change in operating assets and liabilities:Accounts receivable~ ~ nD lxl`/Mie! G !"#$%&'()*+,-./0123456789:;<=>? Income taxes receivable -  ~   ! Inventories~ !v!!~ !!" Investments~ """~ ""#Other current assets~ ###~ ##$Accounts payable~ $j$$~ $Z$%Interest payable~ %%%~ %%!&Other current liabilities~ &&&~ &&1')Net cash provided by operating activities~ '''~ '>'-(%Cash flows from investing activities:(((+)#Proceeds from disposition of assets~ )))~ )f)!*Proceeds from investments~ *f**~ **+Purchase of investments~ +z++~ +J++,#Additions to oil and gas properties~ ,2,,~ ,:,4-,Additions to other assets and other property~ -2--~ -B-.and equipment, net-/%Net cash used in investing activities~ ///~ //-0%Cash flows from financing activities:000,1$Principal payments on long-term debt~ 111~ 1n122*Exercise of long-term incentive plan stock~ 222 2-2,3$options and employee stock purchases#4Purchases of treasury stock~ 4644~ 4r4%5Payments of other liabilities~ 555 5-56Dividends paid~ 666~ 66-7%Net cash used in financing activities~ 777~ 7718)Net decrease in cash and cash equivalents~ 8b88~ 88/9'Cash and cash equivalents, beginning of~ 999~ 9z9:period0;(Cash and cash equivalents, end of period~ ;b ;;~ ;R ;<=$>____________________________1?)Created by Morningstar Document Research.DklG4s:rm7+i~r@0@(http://documentresearch.morningstar.com/H=PF0*8X> @zO@@??>>;;;;99998888777766665555444422221111////----,,,,++++****))))''''&&&&%%%%$$$$####""""!!!!       l   dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash FlowsJune 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } 0} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018June 30, 2018      June 30, 2018  (in millions)0 (Composition of assets included in assets held for sale: Inventories~ Other current assets~ #Oil and gas properties, net~ )!Other property and equipment, net~ nGoodwill~  Total assets~ n.&Composition of liabilities included in"liabilities held for sale:!Other current liabilities~ $Other noncurrent liabilities~ Total liabilities~ *$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/BXui]-Xh6{9=PF0*8X> @r   l   { dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } a/} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018June 30, 2018                 2 *Fair Value Measurement as of June 30, 2018    Using  Quoted Prices   Significant   Significant & Fair Value as of June 30, 2018 in ActiveOther  Unobservable Markets for Observable Inputs IdenticalInputs  (Level 3)Assets (Level 2) (Level 1)(in millions)Assets:  Commodity derivatives $-~    $-  ~  )!Deferred compensation plan assets~ z -  -  ~ z Total assets~ z~    -  ~  Liabilities:  Commodity derivatives -~ f   -  ~ f Total liabilities -~ f   -  ~ f /'Total recurring fair value measurements~ z~   $-  ~ $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/D9 lui]C&#`!tmV=PF0*8X> @r.              l    dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } a/} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018June 30, 2018                 1 )Fair Value Measurement as of December 31,     2017 Using  Quoted Prices   Significant   Significant * "Fair value as of December 31, 2017 in ActiveOther  Unobservable Markets for Observable Inputs IdenticalInputs  (Level 3)Assets (Level 2) (Level 1)(in millions)Assets:  Commodity derivatives $-~ .  $-  ~ .)!Deferred compensation plan assets~ ~ -  -  ~ ~ Total assets~ ~~ .  -  ~  Liabilities:  Commodity derivatives -~   -  ~ Total liabilities -~   -  ~ /'Total recurring fair value measurements~ ~~ 2  $-  ~ $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/DA lui]D"}XleN=PF0*8X> @r.              l   dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)Balance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } -} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/201880Financial instruments not carried at fair value.                  June 30, 2018  December 31, 2017  Carrying  Fair  Carrying  Fair  Value  Value  Value  Value(in millions)-%Commercial paper, corporate bonds and~  ~  ~    ~ time deposits)!Current portion of long-term debt $- $-~    ~ &Long-term debt~ #~ v%~  #  ~ &$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/2j^RF:z,@^E=PF0*8X> @            l  , dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } *} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018Balance Sheet                      June 30, 2018+ #Consolidated Balance Sheet Location Cash  Commercial Paper  Corporate Bonds  Time  Total              Deposits(in millions)!Cash and cash equivalents~  ~   $-  ~ ~ b Short-term investments -~ ~    ~ ~ Long-term investments - -~     -~ ~  ~ "~    ~ ~ b$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/2 ui]mH2th\4=PF0*8X> @           l  > dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } *} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018Balance Sheet                      December 31, 2017+ #Consolidated Balance Sheet Location Cash  Commercial Paper  Corporate Bonds  Time  Total              Deposits(in millions)!Cash and cash equivalents~ : $-  $-  ~ ~ Short-term investments -~ ~     ~ ~ Long-term investments - -~      -~  ~ :~ ~     ~ ~ !$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/2 ui]mD}.pdX0=PF0*8X> @           l  O dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } <(}  $                              $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018June 30, 2018             ~  % Year Ending December 31, 2019  Third Quarter  Fourth Quarter  Collar contracts:      Volume (Bbl)~ .~ . - Price per Bbl: CeilingfffffM@fffffM@  $- Floor~ ~   $- )!Collar contracts with short puts:  Volume (Bbl)~ Bf ~ b ~   Price per Bbl: CeilingL@(\L@ Q^N@ FloorQG@zGG@ QXJ@  Short putHzB@= ףpB@ QXE@ $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/< ui]~'QzA7+=PF0*8X> @             l  ] dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)June 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } '}  $                      $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018-%NGL production derivative activities.             ~  % Year Ending December 31, 2019  Third Quarter  Fourth Quarter (  Ethane basis swap contracts (a):     Volume (MMBtu)~ "l~ "l~ "l $Price differential ($/MMBtu)?? ? $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/,|ui]QEf'uM=PF0*8X> @j        l  !0qq dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } a/}  $ !                                 $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018June 30, 2018             ~  % Year Ending December 31, 2019  Third Quarter  Fourth Quarter  Swap contracts:     Volume (MMBtu)~ ~  - Price per MMBtu~ ~   $- )!Collar contracts with short puts: Volume (MMBtu)~ B~ B  - Price per MMBtu: Ceiling333333 @333333 @  $- Floor@@  $-  Short put@@  $- Basis swap contracts: /'Permian Basin index swap volume (MMBtu)~ ~ ~  6  (a)$Price differential ($/MMBtu)\(\\(\ \(\ -%Southern California index swap volume~ ~ j~  /  (MMBtu) (b)$Price differential ($/MMBtu)333333?? Q? $____________________________1)Created by Morningstar Document Research.D lui]~'Qgn& 0 (http://documentresearch.morningstar.com/H=PF0*8X> @*%                l    dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } !} $ } } $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018June 30, 2018               / 'Fair Value of Derivative Instruments as of June 30, 2018 Type   Consolidated  Fair  Gross Amounts  Net Fair ValueBalance SheetValueOffset in the  Presented in theLocation Consolidated   ConsolidatedBalance Sheet  Balance Sheet(in millions)-%Derivatives not designated as hedging   instrumentsAsset Derivatives:  #Commodity price derivativesDerivatives - current~ &~   ~   #Commodity price derivatives Derivatives - noncurrent~  ~     - ~   Liability Derivatives:  #Commodity price derivativesDerivatives - current~ ~   ~  #Commodity price derivatives Derivatives - noncurrent~ n~   ~  f ~  f $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/Dlui]vZ$ 1k(=PF0*8X> @"                     l    dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } !} $ } } $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018June 30, 2018               / 'Fair Value of Derivative Instruments as of December 31, 2017 Type   Consolidated  Fair  Gross Amounts  Net Fair ValueBalance SheetValueOffset in the  Presented in theLocation Consolidated   ConsolidatedBalance Sheet  Balance Sheet(in millions)-%Derivatives not designated as hedging   instrumentsAsset Derivatives:  #Commodity price derivativesDerivatives - current~ 6~   ~  .#Commodity price derivatives Derivatives - noncurrent~ ~     - ~  .Liability Derivatives:  #Commodity price derivativesDerivatives - current~ ~   ~  #Commodity price derivatives Derivatives - noncurrent~ j~   ~  ^ ~  $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/Dlui]vV |-g$ =PF0*8X> @"                     l  j dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } -} $ } -} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018June 30, 2018                  - %Derivatives Not Designated as Hedging - %Location of Gain/(Loss) Recognized in  Three Months Ended Six Months Ended  Instruments  Earnings on Derivatives  June 30, June 30,    ~  ~ ~  ~ (in millions)#Commodity price derivatives&Derivative gains (losses), net~ j~ " ~  *~ ~!Interest rate derivatives&Derivative gains (losses), net -~    -~ Total~ j~  ~  *~ z$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/0>ui]W# =PF0*8X> @              l   dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } 6} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018!NOTE 6. Exploratory Costs         (  Three Months Ended June 30, 2018 & Six Months Ended June 30, 2018  (in millions). &Beginning capitalized exploratory well~ r  ~  costs3+Additions to exploratory well costs pending~  ~ ,$the determination of proved reserves-%Reclassification due to determination~ ~ Fof proved reserves5-Exploratory well costs charged to exploration~ ~ and abandonment expense1)Ending capitalized exploratory well costs~ ~ $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/8ui]Q^d4, |T=PF0*8X> @      l   dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsStockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } U5} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018!NOTE 6. Exploratory Costs          June 30, 2018  December 31, 2017 ) !(in millions, except well counts)/ 'Capitalized exploratory well costs that   have been suspended:One year or less~ ~ More than one year~ 2~ 2~ ~ 4,Number of wells or projects with exploratory~ ~ /'well costs that have been suspended for&a period greater than one year$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/2Eui]Qj9uB=PF0*8X> @r    l   dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } *} } $ } } $ } } $                         $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018!Stock-based compensation.            Restricted   Restricted   Performance   Stock Equity  Stock Liability  Units  Awards  Awards+#Outstanding as of December 31, 2017~ 7~ l~ Z Awards granted~ x~ ~ 6Awards forfeited~ <~ ~~ Awards vested~ A~ ~ 'Outstanding as of June 30, 2018~ R4~ :~  $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/2Bui]Q~EC3'=PF0*8X> @Z          l  n dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensationImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } a/} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018,$NOTE 9. Asset Retirement Obligations                  Three Months Ended  Six Months Ended  June 30,  June 30, ~  ~  ~  ~ (in millions).&Beginning asset retirement obligations~ ~ ~  >  ~ &New wells placed on production~ ~ ~    ~ Changes in estimates -~ ~     ~ /'Obligations reclassified to liabilities~  -~     -held for sale Dispositions~ ~ ~    ~ Liabilities settled~ ~ ~    ~ Accretion of discount~ ~ ~  "  ~ *+#Ending asset retirement obligations~ ~ ~    ~ $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/< vj^RF4gHr#v{=PF0*8X> @b,                l  . dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement Obligat!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } } $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018#Impact of ASC 606 adoption.                         (  Three Months Ended June 30, 2018 & Six Months Ended June 30, 2018   As Reported  ASC 605  Effect of Change   As Reported  ASC 605  Effect of Change     % (Without Adoption of ASC 606)  Higher (Lower)     % (Without Adoption of ASC 606)  Higher (Lower)(in millions) (in millions)"Revenues and other income:   Oil and gas~ ~ B~    ~ '~ ^&~ Costs and expenses:  Oil and gas production~ ~ ~    ~ "~ ~ $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/2 sg[O/QWK?=PF0*8X> @              l   dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } 1} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018=5Disaggregated revenue from contracts with purchasers.         (  Three Months Ended June 30, 2018 & Six Months Ended June 30, 2018  (in millions)  Oil sales~ &  ~   NGL sales~ ~ : Gas sales~ R~ Total oil and gas sales~ ~ '&Sales of purchased oil and gas~ ~ !1)Total revenue derived from contracts with~ 6%~ I purchasers$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/2~eYMA5gBCv=PF0*8X> @      l   dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from contNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } <(} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018*"NOTE 12. Interest and Other Income                  Three Months Ended  Six Months Ended  June 30,  June 30, ~  ~  ~  ~ (in millions)Interest income~ ~ *~  :  ~ BSeismic data sales~  -~     -)!Deferred compensation plan income -~ ~    ~ 'Severance and sales tax refunds -~ ~     ~ " Other income~  -~     ~ 'Total interest and other income~ &~ B~  j  ~ z$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/6K xl`TH6ib RF:=PF0*8X> @"$              l  0 dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } a/} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018NOTE 13. Other Expense                  Three Months Ended  Six Months Ended  June 30,  June 30, ~  ~  ~  ~ (in millions)-%Transportation commitment charges (a)~ ~ ~  :  ~ J-%Legal and environmental contingencies~  -~  *  ~ /'Loss from vertical integration services~ ~ ~  &  ~ . (b))!Asset divestiture related charges~ & -~  &   -Other~ 6~ .~  n  ~ NTotal other expense~ 2~ ~    ~ $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/8 xl`TBu=.w/#=PF0*8X> @"$              l  > dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } $} $ } $} $ } $} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018NOTE 14. Income Taxes                Three Months Ended  Six Months Ended  June 30,  June 30, ~  ~  ~  ~ (in millions)Deferred tax provision~ N~ ~    ~  j$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/,Y|ymaU[=PF0*8X> @r     l  M dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } 7} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018%NOTE 15. Net Income Per Share                  Three Months Ended  Six Months Ended  June 30,  June 30, ~  ~  ~  ~ (in millions)6.Net income attributable to common stockholders~  ~ ~    ~ *"Participating share-based earnings -~ ~    ~ 1)Basic and diluted net income attributable~  ~ ~    ~ to common stockholders$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/0I}qeYM;n. =PF0*8X> @           l  6] dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per Share!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } $4} U} $ } U} $ } U}  $ } U} $                         $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018%NOTE 15. Net Income Per Share              Three Months Ended  Six Months Ended  June 30,  June 30, ~  ~  ~  ~ (in millions)1)Basic weighted average shares outstanding~ ~ ~  ~   ,$Dilution attributable to stock-based~  -~    - compensation awards3+Diluted weighted average shares outstanding~ ~ ~  ~   $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/24}qeYMk+#A5)=PF0*8X> @b            l  m dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } a}  $                            $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018+#Adoption of New Accounting Standard               As Reported  ASC 605  Effect of Change      (Without Adoption       of ASC 606)(in millions)Oil and Gas Sales:  Oil sales~ &~ &  $-  NGL sales~ ~ ~    Gas sales~ R~ ~  B Oil and gas sales~ ~ B~    Production Costs~ ~ ~   $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/8Mwk_SGM|",.dXL$=PF0*8X> @             l  Y~ dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } m)} } $ }  } $ } }  $ } } $                         $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018*"Operations and Drilling Highlights               Oil (Bbls)   NGLs (Bbls)   Gas (Mcf)   Total (BOE) Permian Basin~    ~ E  ~ n-  ~ ~ * "South Texas - Eagle Ford Shale (a)~ *y  ~ Nr  ~   ~ f\ Raton Basin (b)~  -~   ~ J West Panhandle~ ~~ ;~  ~  *x South Texas - Other (a)~ "~ ~  ~  Z Other~ &~ ~ & ~  2 Total~ >; ~ ~  ~  . $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/2xl`TH/*8[=PF0*8X> @:      l  < dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } $} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018*"Operations and Drilling Highlights                          Acquisition Costs   Exploration   Development  Asset  Total  Proved  Unproved  Costs  Costs  Retirement Obligations   (in millions)Permian Basin~  ~ J~   ~ z~ ~ n&South Texas - Eagle Ford Shale - -  -  ~ 6 -~ 6 Raton Basin - -  -  ~  -~ West Panhandle - -~     ~  -~ Other - -~     - -~ Total~  ~ J~    ~ ~ ~ $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/4x xl`TH(=PF0*8X> @2                l  c dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } m} $} $ } $} $ } $}  $ } } $ } $} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018*"Operations and Drilling Highlights                 Development Drilling  Beginning Wells  Wells   Successful   Unsuccessful   Ending Wells   in Progress  Spud  Wells  Wells   in ProgressPermian Basin~ :~ :~ : ~   ~ 6$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/*hxl`THhSG;=PF0*8X> @r          l   dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } $} U} $ } U} $ } U}  $ } } $ } U} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018*"Operations and Drilling Highlights                & Exploration/Extension Drilling  Beginning Wells  Wells   Successful   Unsuccessful   Ending Wells   in Progress  Spud  Wells  Wells   in ProgressPermian Basin~ ~ .~  ~   ~ F&South Texas - Eagle Ford Shale~ " -~    -  ~ West Panhandle~  - - ~     ~ Total~ "~ .~  ~    ~ f$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/0xl`TH^Io=PF0*8X> @r          l  I dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } <} } $ } } $ } }  $ } } $                        $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018Oil and gas revenues.              Three Months Ended  Six Months Ended  June 30,  June 30, ~  ~  ~  ~  Oil (Bbls)~ ^R ~ ~ >;  ~ >  NGLs (Bbls)~ f~ R@~  ~  J  Gas (Mcf)~ w~ 2~  ~     Total (BOEs)~ b~ >~ . ~   $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/0 ymaUs3)A5)=PF0*8X> @Z           l  v dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenuesDerivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } } $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018)!PIONEER NATURAL RESOURCES COMPANY                  Three Months Ended  Six Months Ended  June 30,  June 30, ~  ~  ~  ~ Oil (per Bbl)N@~  (\µN@  zGG@NGL (per Bbl)Gz<@)\0@ HzG<@  Hz2@Gas (per Mcf)Q?(\@ @  @Total (per BOE)(\E@HzG@@  ףp= F@  Hz'A@$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/0ymaUI7)t}=PF0*8X> @            l   dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } a/} $ } I } $ } I     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018'Derivative gains (losses), net.                   (  Three Months Ended June 30, 2018& Six Months Ended June 30, 2018  Net cash   Price impact $ Net cash receipts (payments)   Price impact  receipts (payments)(in millions)  (in millions)Oil derivative payments~ (\ per Bbl ~   p= ףper BblNGL derivative receipts - $-per Bbl   - {Gz?per BblGas derivative receipts~ {Gz?per Mcf ~    Q?per Mcf/'Total net commodity derivative payments~  ~   $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/2 {ocWKsuJ'l`T,=PF0*8X> @           l   dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses netOil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } a/} $ } I } $ } I     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018)!PIONEER NATURAL RESOURCES COMPANY                   (  Three Months Ended June 30, 2017& Six Months Ended June 30, 2017  Net cash receipts   Price impact  Net cash receipts   Price impact  (in millions)     (in millions)   Oil derivative receipts~ Vq= ףp?per Bbl ~  Q?per BblNGL derivative receipts~ {Gz?per Bbl ~   {Gz?per BblGas derivative receipts~ {Gz?per Mcf   -  $-per Mcf/'Total net commodity derivative receipts~ ^ ~   $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/0ymaUIqu)Q~V=PF0*8X> @           l   dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } 0} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018%Oil and gas production costs.                  Three Months Ended  Six Months Ended  June 30,  June 30, ~  ~  ~  ~  Lease operating expensesq= ףp@)\(@  ףp= @  (\@0(Gathering, processing and transportationffffff@= ףp=? )\(@  Q?charges.&Net natural gas plant (income) charges333333ӿ ףp= ǿ zGʿ  q= ףpͿWorkover costsHzG?RQ? ?  (\?Total production costsL @(\@ {Gz@  @$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/4}qeYM;"ln=PF0*8X> @             l   dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } -} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018)!PIONEER NATURAL RESOURCES COMPANY                  Three Months Ended  Six Months Ended  June 30,  June 30, ~  ~  ~  ~ Production taxesQ?333333? (\?  RQ?Ad valorem taxes)\(?Gz? Q?  )\(?-%Total production and ad valorem taxes@Q@ )\(@  333333@$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/.ymaUI7RF:=PF0*8X> @           l  ^! dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } '} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018-%Exploration and abandonments expense.                  Three Months Ended  Six Months Ended  June 30,  June 30, ~  ~  ~  ~ (in millions)"Geological and geophysical~ b~ J~    ~ Exploratory well costs~ ~ ~  "  ~ *( Leasehold abandonments and other -~ ~    ~ "~ r~ j~    ~ $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/2ui]QE3fOw=PF0*8X> @            l  . dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments exInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } 0.} $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018JBItem 3. Quantitative and Qualitative Disclosures About Market Risk     4 ,Derivative Contract Net Assets (Liabilities)  (in millions). &Fair value of contracts outstanding as~ 2 of December 31, 2017&Changes in contract fair value~ *"Contract maturity payments~ N.&Fair value of contracts outstanding as~ of June 30, 2018$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/0XL@4(C#S7+=PF0*8X> @J     l  KC dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and Qualita!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } +} $ } $} $ } $}  $ } $} $ } $} $ } $} $ } $} $                         $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018"Interest rate sensitivity.                                 & Six Months Ending December 31,  Year Ending December 31,      Liability Fair Value at                              June 30, ~  ~  ~  ~  ~    Thereafter  Total ~ (dollars in millions) Total Debt:  +#Fixed rate principal maturities (a) $- $-~     ~ ~ b ~  ~ #~ v%,$Weighted average fixed interest rate~  %~  % Gz@  % zG@ %(\@ %@ %&Average variable interest rateRQ@ %(\@ % Q@  % $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/2} th\P u'=PF0*8X> @ !               l  3\g dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!Purchases of Equity Securities  Exhibits EXHIBIT 121Mine Safety DisclosureU } 2} $ 3    $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018)!PIONEER NATURAL RESOURCES COMPANY                 ~  % Year Ending December 31, 2019 0 (Asset (Liability) Fair Value at June 30,  Third Quarter  Fourth Quarter      2018 (a)        (in millions)Oil Derivatives:  +#Average daily notional Bbl volumes:  Collar contracts~ .~ .  -  ~ .&Weighted average ceiling price per BblfffffM@fffffM@  $-  ,$Weighted average floor price per Bbl~ ~   $-  ( Collar contracts with short puts~ Bf ~ b ~    ~ B.&Weighted average ceiling price per BblL@(\L@ Q^N@  ,$Weighted average floor price per BblQG@zGG@ QXJ@  0(Weighted average short put price per BblHzB@= ףpB@ QXE@  ,$Average forward NYMEX oil prices (b)q= ף@Q@q= ףP@ ףp= 7P@  NGL Derivatives:  /'Ethane basis swap contracts (MMBtu) (c)~ "l~ "l~  "l   $-/'Weighted average price differential per?? ?  MMBtu,$Average forward NYMEX gas prices (b)zG@\(\@ Gz@  Gas Derivatives:  -%Average daily notional MMBtu volumes:  Swap contracts~ ~   -  ~ .&Weighted average fixed price per MMBtu~ ~   $-  D5lymaUI_X:~L`O% !"#$%&'()*+,-./012(  Collar contracts with short puts~ B  ~ B   -   $- 0!(Weighted average ceiling price per MMBtu!333333 @!!!333333 @!! ! $-! ! !."&Weighted average floor price per MMBtu"@"""@"" " $-" " "2#*Weighted average short put price per MMBtu#@###@## # $-# # #,$$Average forward NYMEX gas prices (b)$zG@$$$\(\@$$$ $ $ $%Basis swap contracts:%%%%% % %+&#Permian Basin index swap volume (d)~ &&&~ &&&~ & 6& & ~ &n&.'&Weighted average fixed price per MMBtu'\(\'''\(\''' \(\' ' '1()Average forward basis differential prices(Gz(((((( ffffff( ( ( )(e)0*(Southern California index swap contracts~ ***~ *j**~ * /* * ~ ** +(f).,&Weighted average fixed price per MMBtu,333333?,,,?,,, Q?, , ,1-)Average forward basis differential prices-ffffff?---?--- q= ףp?- - - .(g)/$0____________________________11)Created by Morningstar Document Research.02(http://documentresearch.morningstar.com/* hIg7{"cTH =PF0*8X> @X221100------ ,,,,,, ****** **(((((( '''''' &&&&&& &&$$$$###### """""" !!!!!!                       l  | dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4) Exhibits EXHIBIT 121Mine Safety DisclosureU } } $ } U} $ } } $     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018NFPurchases of Equity Securities by the Issuer and Affiliated Purchasers                Period  Total Number of  Average Price  Total Number of  Approximate Dollar   Shares Purchased (a)  Paid per Share  Shares  Value of Shares that          Purchased As Part of  May Yet Be Purchased Publicly Announced  under Plans or Plans or Programs   Programs (b) April 2018~ *{Gf@  -  ~  May 2018~ ףp= j@  -  ~   June 2018~ RIf@~    ~  *<Total~ ~     $____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/4# TH<0$paSfZN&=PF0*8X> @              l  =ǎ dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  EXHIBIT 121Mine Safety DisclosureU } I } $ } } $ } U5 =    $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018Exhibits      Exhibit     Description Number     333333$@(a) -1)Eleventh Amendment to the Pioneer Natural/'Resources USA, Inc. 401(k) and Matching!Plan dated June 29, 2018.333333(@(a) -2*Computation of Ratios of Earnings to Fixed1)Charges and Earnings to Fixed Charges and"Preferred Stock Dividends.2@(a) -.&Ernst & Young LLP Preferability Letter?@(a) --%Chief Executive Officer certification/'under Section 302 of Sarbanes-Oxley Actof 2002.333333?@(a) --%Chief Financial Officer certification/'under Section 302 of Sarbanes-Oxley Actof 2002. @@(b) --%Chief Executive Officer certificationDu lznb&b&PQFZ !"#$%&'()*+,-./0123456789:;<    / 'under Section 906 of Sarbanes-Oxley Act!!!!!of 2002."""""#@@##(b) -#-#%Chief Financial Officer certification$$$$/$'under Section 906 of Sarbanes-Oxley Act%%%%%of 2002.&&&&&'fffffW@''(a) -' 'Mine Safety Disclosures.((((()101.INS))(a) -))XBRL Instance Document.*****+101.SCH++(a) -+'+XBRL Taxonomy Extension Schema.,,,,,-101.CAL--(a) --4-,XBRL Taxonomy Extension Calculation Linkbase..... Document./////0101.DEF00(a) -030+XBRL Taxonomy Extension Definition Linkbase11111 Document.222223101.LAB33(a) -3.3&XBRL Taxonomy Extension Label Linkbase44444 Document.555556101.PRE66(a) -6,6$XBRL Taxonomy Extension Presentation77777Linkbase Document.89$:____________________________1;)Created by Morningstar Document Research.0<(http://documentresearch.morningstar.com/> 0YN o31<H YcWK#=PF0*8X> @<<;;:: l   dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  ExhibitsMine Safety DisclosureU } :} $ } } $ }  } $ }  } $ }  } $ } } $ }     $PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018 EXHIBIT 12.1                Six Months Ended  Year ended December 31,   June 30, 2018 ~  ~  ~ ~ ~ z ~ v. &Ratio of earnings to fixed charges (a)  (\@  Q@  (b)  (c)  fffff"@  (d)80Ratio of earnings to fixed charges and preferred(\@Q@ (b) (c)  fffff"@  (d)stock dividends (e)$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/*Phvj^_=PF0*8X> @"    l   dMbP?_*+%,&٭e2?'٭e2?(٭e2?)٭e2?",D/??1!PIONEER NATURAL RESOURCES COMPAYes NoTABLE OF CONTENTSBalance SheetBalance Sheet (1)Income Statement!CONSOLIDATED STATEMENT OF EQUIT Cash Flows June 30 2018June 30 2018 (1)June 30 2018 (2)!Financial instruments not carriBalance Sheet (2)Balance Sheet (3)June 30 2018 (3)!NGL production derivative activJune 30 2018 (4)June 30 2018 (5)June 30 2018 (6)June 30 2018 (7)NOTE 6 Exploratory CostsNOTE 6 Exploratory Costs (1)Stockbased compensation!NOTE 9 Asset Retirement ObligatImpact of ASC 606 adoption!Disaggregated revenue from cont!NOTE 12 Interest and Other IncoNOTE 13 Other ExpenseNOTE 14 Income TaxesNOTE 15 Net Income Per ShareNOTE 15 Net Income Per S (1)!Adoption of New Accounting Stan!Operations and Drilling Highlig!Operations and Drilling Hig (1)!Operations and Drilling Hig (2)!Operations and Drilling Hig (3)Oil and gas revenues!PIONEER NATURAL RESOURCES C (1)Derivative gains losses net!PIONEER NATURAL RESOURCES C (2)Oil and gas production costs!PIONEER NATURAL RESOURCES C (3)!Exploration and abandonments ex!Item 3 Quantitative and QualitaInterest rate sensitivity!PIONEER NATURAL RESOURCES C (4)!Purchases of Equity Securities  Exhibits EXHIBIT 121U } m)} $ } } $ } $} $ } $} $ } $} $ } $} $ } $} $ } 0} $ } U5} $ } $} $ } $} !$ } ""$} ##$ $$$$$$$$$$ $ $ $ $$$$$$$$$$$$$PIONEER NATURAL RESOURCES CO 10-Q 08/09/2018Mine Safety Disclosure                                  ! " #* "Mine/MSHA Identification Number(1)  Section  Section  Section  Section  Section & Total Dollar Value of Proposed  Mining 0 (Received Notice of Pattern of Violations 4 ,Received Notice of Potential to have Pattern (  Legal Actions Pending as of Last - %Legal Actions Initiated During Period !, "$Legal Actions Resolved During Period  ~   104(b)  104(d)   110(b)(2)  107(a)   Assessments  Related  under Section 104(e)  under Section 104(e)  Day of Period   S&S  Orders   Citations   Violations  Orders       Fatalities  (yes/no)  (yes/no) Citations andOrders$Voca Pit and Plant / 4101003~  - -    -  -~ % - No No - - ! "-#$Millwood Operation / 3301355 - - -    -  - $- - No No - - ! "-#Brady Plant / 4101371 - - -    -  - $- - No No - - ! "-#Voca West / 4103618 - - -    -  - $- - No No - - ! "-#$____________________________1)Created by Morningstar Document Research.0(http://documentresearch.morningstar.com/4xl`TRN =uo=PF0*8X> @"###                      "# Root Entry FBook    !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~     !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~