GlobeNewswire Inc | Aug 2, 2021 04:01PM EDT

August 02, 2021

MIDLAND, Texas, Aug. 02, 2021 (GLOBE NEWSWIRE) -- Diamondback Energy, Inc. (NASDAQ: FANG) (Diamondback or the Company) today announced financial and operating results for the second quarter ended June30, 2021.

SECOND QUARTER 2021 HIGHLIGHTS

-- Q2 2021 average production of 242.5 MBO/d (401.5 MBOE/d) -- Generated Q2 2021 cash flow from operating activities of $954 million; Operating Cash Flow Before Working Capital Changes (as defined and reconciled below) of $944 million, or $5.19 per diluted share -- Q2 2021 cash capital expenditures of $366 million; Q2 2021 activity-based capital expenditures incurred of approximately $418 million -- Generated Q2 2021 Free Cash Flow (as defined and reconciled below) of $578 million, or $3.18 per diluted share -- Increasing annual dividend by 12.5% to $1.80 per share; declared Q2 2021 cash dividend of $0.45 per share payable on August 19, 2021; implies a 2.3% annualized yield based on the July 30, 2021 share closing price of $77.13 -- Closed previously announced divestitures of non-core Permian assets for net proceeds of $82 million -- Previously announced divestiture of Williston Basin assets expected to close in late Q3 2021 -- As previously announced, Diamondback fully redeemed the $191 million aggregate principal amount of remaining 4.625% 2021 Energen bonds in June -- Announced full redemption of $432 million remaining aggregate principal amount of 5.375% bonds due 2025 -- Flared 1.0% (2.0% including QEP) of gross natural gas production in the second quarter of 2021; 0.9% (1.7% including QEP) in the first half of 2021

2021 GUIDANCE UPDATE

-- Increasing full year 2021 oil production guidance to 219 - 222 MBO/d (363 - 370 MBOE/d), up from 212 - 216 MBO/d (350 - 360 MBOE/d) previously -- Lowering full year 2021 cash CAPEX guidance to $1.525 - $1.625 billion, down 6% at the midpoint from $1.60 - $1.75 billion previously -- Initiating Q3 2021 oil production guidance of 233 - 239 MBO/d (388 - 398 MBOE/d); includes 15 - 17 MBO/d (25 - 29 MBOE/d) attributable to a full quarter of estimated net Q3 2021 Williston Basin production -- Initiating Q3 2021 Permian Basin oil production guidance of 218 - 222 MBO/d (363 - 370 MBOE/d) -- Q3 2021 cash CAPEX guidance of $430 - $480 million -- Diamondback believes it can maintain Q4 2021 Permian Basin oil production through full year 2022 with 10% - 15% more capital than the midpoint of its revised 2021 capital budget

Diamondback built on its track record of execution in the second quarter, generating $578 million of Free Cash Flow. Operationally, capital efficiency continues to improve. As a result, we are cutting our 2021 capital budget by $100 million due to cost control and volume outperformance. Put simply, we are doing more with less: producing more barrels with less capital, fewer completed wells and fewer drilling rigs, stated Travis Stice, Chief Executive Officer of Diamondback.

Mr. Stice continued, From a macro perspective, the world oil market is still artificially undersupplied and there is not a call on shale production growth today. Therefore, Diamondback will maintain capital discipline by holding oil production flat for the foreseeable future. If this maintenance plan continues into 2022, we expect to be able to hold fourth quarter 2021 Permian oil production flat with 10 - 15% more capital than our current 2021 plan, demonstrating our improved capital efficiency that incorporates a full year of spend on the assets we acquired in the first quarter. We still believe the best path to long term value creation for stockholders today is achieved through flat oil production, lower costs and return of Free Cash Flow.

Mr. Stice continued, As we have stated in the past, an increased return will nothinder our efforts to continue to pay down gross debt, and we have proven that again today with our second dividend increase this year, bringing our year-to-date dividend growth to 20%. Additionally, beginning in 2022, we plan to return 50% of our Free Cash Flow to our stockholders. The form of this additional capital return will be decided by the Board at the appropriate time, but we intend to be flexible based on which opportunities we believe present the best return to our stockholders at that time.

OPERATIONS UPDATE

The tables below provide a summary of operating activity for the second quarter of 2021.

Total Activity (Gross Operated): Number of Wells Number of Wells Drilled CompletedMidland Basin 47 47 Delaware Basin 9 14 Williston Basin ? 4 Total 56 65

Total Activity (Net Operated): Number of Wells Number of Wells Drilled CompletedMidland Basin 43 44 Delaware Basin 9 14 Williston Basin ? 3 Total 52 61

During the second quarter of 2021, Diamondback drilled 47 gross horizontal wells in the Midland Basin and nine gross horizontal wells in the Delaware Basin. The Company turned 47 operated horizontal wells to production in the Midland Basin, 14 operated horizontal wells to production in the Delaware Basin and four operated horizontal wells in the Williston Basin. The average lateral length for the wells completed during the second quarter was 11,137 feet. Operated completions during the second quarter consisted of 19 Lower Spraberry wells, ten Wolfcamp A wells, nine Middle Spraberry wells, eight Jo Mill wells, six Wolfcamp B wells, five Third Bone Spring wells, two Second Bone Spring wells, two Dean wells, two Bakken wells and two Three Forks wells.

In the first half of 2021, Diamondback drilled 88 gross horizontal wells in the Midland Basin and 17 gross horizontal wells in the Delaware Basin. The Company turned 89 operated horizontal wells to production in the Midland Basin, 39 operated horizontal wells in the Delaware Basin and four operated horizontal wells in the Williston Basin. The average lateral length for wells completed during the first six months of 2021 was 10,729 feet, and consisted of 38 Wolfcamp A wells, 29 Lower Spraberry wells, 15 Middle Spraberry wells, 13 Jo Mill wells, 13 Wolfcamp B wells, eight Second Bone Spring wells, eight Third Bone Spring wells, three Dean wells, two Bakken wells, two Three Forks wells and one Barnett well.

FINANCIAL UPDATE

Diamondback's second quarter 2021 net income was $311 million, or $1.71 per diluted share. Adjusted net income (a non-GAAP financial measure as defined and reconciled below) was $437 million, or $2.40 per diluted share.

Second quarter 2021 Consolidated Adjusted EBITDA (as defined and reconciled below) was $1,001million. Adjusted EBITDA net of non-controlling interest was $971 million.

Second quarter 2021 average unhedged realized prices were $63.22 per barrel of oil, $2.40 per Mcf of natural gas and $23.41 per barrel of natural gas liquids ("NGLs"), resulting in a total equivalent unhedged price of $45.63 per BOE.

Diamondback's cash operating costs for the second quarter of 2021 were $9.33 per BOE, including lease operating expenses ("LOE") of $4.30 per BOE, cash general and administrative ("G&A") expenses of $0.63 per BOE, production and ad valorem taxes of $2.87 per BOE and gathering and transportation expenses of $1.53 per BOE. LOE increased quarter over quarter due to the integration of QEP's Williston Basin assets which carry a higher expense structure than Diamondback's Permian Basin assets. LOE is expected to decrease when the previously announced sale of the Williston Basin assets closes.

As of June30, 2021, Diamondback had $284 million in standalone cash and no borrowings outstanding under its revolving credit facility, with approximately $1.6 billion available for future borrowing under the facility and $1.9 billion of total liquidity.

During the second quarter of 2021, Diamondback spent $330 million on drilling and completion, $10 million on midstream, $14 million on infrastructure and $12 million on non-operated properties, for total cash capital expenditures of $366 million. During the first half of 2021, Diamondback has spent $603 million on drilling and completions, $17 million on midstream, $22 million on infrastructure and $20 million on non-operated properties, for total cash capital expenditures of $662 million.

DIVIDEND DECLARATION

Diamondback announced today that the Company's Board of Directors declared a cash dividend of $0.45 per common share for the second quarter of 2021 payable on August19, 2021, to stockholders of record at the close of business on August12, 2021. Future dividends remain subject to review and approval at the discretion of the Company's Board of Directors.

FULL YEAR 2021 GUIDANCE

Below is Diamondback's guidance for the full year 2021, which includes the initiation of third quarter production and capital guidance.

2021 Guidance 2021 Guidance Diamondback Viper Energy Energy, Inc. Partners LP Total net production ? MBOE/d^(a) 363 - 370 26.25 - 27.00Oil production ? MBO/d^(a) 219 - 222 15.75 - 16.25Q3 2021 oil production - MBO/d (total - 233 - 239 (388 - MBOE/d)^(a) 398)Q3 2021 Permian Basin oil production - MBO/ 218 - 222 (363 - d (total - MBOE/d) 370)Unit costs ($/BOE) Lease operating expenses, including $3.90 - $4.30 workoversG&A Cash G&A $0.45 - $0.55 $0.60 - $0.80Non-cash equity-based compensation $0.30 - $0.40 $0.10 - $0.25DD&A $8.75 - $10.75 $9.50 - $10.50Interest expense (net of interest income) $1.50 - $1.70 $3.00 - $3.25Gathering and transportation $1.25 - $1.35 Production and ad valorem taxes (% of 7% 7%revenue)^(b)Corporate tax rate (% of pre-tax income) 23% Gross horizontal wells drilled (net) 210 - 220 (193 - 202)Gross horizontal wells completed (net) 265 - 275 (246 - 256)Average lateral length (Ft.) ~10,300' Midland Basin well costs per lateral foot $520 - $550 Delaware Basin well costs per lateral foot $720 - $800 Midland Basin net lateral feet (%) ~75% Delaware Basin net lateral feet (%) ~25% Capital Budget ($ - million) Operated horizontal drilling and completion $1,215 - $1,265 Non-operated capital and capital workovers $160 - $180 Midstream (ex. long-haul pipeline $50 - $70 investments)^(c)Infrastructure and environmental $100 - $110 2021 Capital Spend $1,525 - $1,625 Q3 2021 cash capex $430 - $480

Assumes full third quarter 2021 Williston Basin production contribution of(a) 15-17 MBO/d (25-29 MBOE/d). Third quarter volumes will be reduced proportionally dependent upon final close date of Williston Basin Sale.(b) Includes production taxes of 4.6% for crude oil and 7.5% for natural gas and NGLs and ad valorem taxes.(c) Includes $20 million of spend related to midstream assets currently owned directly by Diamondback.

CONFERENCE CALL

Diamondback will host a conference call and webcast for investors and analysts to discuss its results for the second quarter of 2021 on Tuesday, August 3, 2021 at 8:00 a.m. CT. Participants should call (877) 440-7573 (United States/Canada) or (253) 237-1144 (International) and use the confirmation code 3973167. A telephonic replay will be available from 11:00 a.m. CT on Tuesday, August 3, 2021, through Tuesday, August 10, 2021 at 11:00 a.m. CT. To access the replay, call (855) 859-2056 (United States/Canada) or (404) 537-3406 (International) and enter confirmation code 3973167. A live broadcast of the earnings conference call will also be available via the internet at www.diamondbackenergy.com under the Investor Relations section of the site. A replay will also be available on the website following the call.

About Diamondback Energy, Inc.

Diamondback is an independent oil and natural gas company headquartered in Midland, Texas focused on the acquisition, development, exploration and exploitation of unconventional, onshore oil and natural gas reserves primarily in the Permian Basin in West Texas. For more information, please visit www.diamondbackenergy.com.

Forward-Looking Statements

This news release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements, other than historical facts, that address activities that Diamondback assumes, plans, expects, believes, intends or anticipates (and other similar expressions) will, should or may occur in the future are forward-looking statements. The forward-looking statements are based on managements current beliefs, based on currently available information, as to the outcome and timing of future events, including the current volatile industry and macroeconomic conditions, commodity price volatility, production levels, the impact of the recent presidential and congressional elections on energy and environmental policies and regulations, any other potential regulatory actions (including those that may impose production limits in the Permian Basin), the impact and duration of the COVID-19 pandemic, acquisitions and sales of assets, including the recently completed Guidon and QEP acquisitions, and the anticipated synergies and costs savings from those transactions, as well as the pending sale of assets, future dividends, production, drilling and capital expenditure plans, severe weather conditions (such as the impact of the recent severe winter storms in February 2021 in the Permian Basin on production volumes), impact of impairment charges and effects of hedging arrangements. These forward-looking statements involve certain risks and uncertainties that could cause the results to differ materially from those expected by the management of Diamondback. Information concerning these risks and other factors can be found in Diamondbacks filings with the Securities and Exchange Commission ("SEC"), including its reports on Forms 10-K, 10-Q and 8-K, which can be obtained free of charge on the SECs web site at http://www.sec.gov. Diamondback undertakes no obligation to update or revise any forward-looking statement.

Diamondback Energy, Inc.Consolidated Balance Sheets(unaudited, in millions, except share amounts) June 30, December 31, 2021 2020Assets Current assets: Cash and cash equivalents $ 344 $ 104 Restricted cash 18 4 Accounts receivable: Joint interest and other, net 78 56 Oil and natural gas sales, net 579 281 Inventories 52 33 Derivative instruments 13 1 Income tax receivable 33 100 Prepaid expenses and other current assets 25 23 Total current assets 1,142 602 Property and equipment: Oil and natural gas properties, full cost method ofaccounting ($8,287 million and $7,493 million 32,155 27,377 excluded from amortization at June30, 2021 andDecember31, 2020, respectively)Midstream assets 1,018 1,013 Other property, equipment and land 160 138 Accumulated depletion, depreciation, amortization (12,914 ) (12,314 ) and impairment Property and equipment, net 20,419 16,214 Funds held in escrow 34 51 Equity method investments 518 533 Derivative instruments 5 ? Deferred income taxes, net 28 73 Investment in real estate, net 89 101 Other assets 100 45 Total assets $ 22,335 $ 17,619 Liabilities and Stockholders? Equity Current liabilities: Accounts payable - trade $ 104 $ 71 Accrued capital expenditures 236 186 Current maturities of long-term debt ? 191 Other accrued liabilities 455 302 Revenues and royalties payable 404 237 Derivative instruments 773 249 Total current liabilities 1,972 1,236 Long-term debt 7,360 5,624 Derivative instruments 32 57 Asset retirement obligations 185 108 Deferred income taxes 879 783 Other long-term liabilities 17 7 Total liabilities 10,445 7,815 Commitments and contingencies Stockholders? equity: Common stock, $0.01 par value; 400,000,000 sharesauthorized; 181,049,191 and 158,088,182 shares 2 2 issued and outstanding at June30, 2021 andDecember31, 2020, respectivelyAdditional paid-in capital 14,399 12,656 Retained earnings (accumulated deficit) (3,475 ) (3,864 ) Total Diamondback Energy, Inc. stockholders? 10,926 8,794 equityNon-controlling interest 964 1,010 Total equity 11,890 9,804 Total liabilities and equity $ 22,335 $ 17,619

Diamondback Energy, Inc.Consolidated Statements of Operations(unaudited, $ in millions except per share data, shares in thousands) Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020Revenues: Oil, natural gas andnatural gas liquid $ 1,667 $ 412 $ 2,839 $ 1,295 salesMidstream 12 11 23 25 servicesOther operating 2 2 3 4 income Total 1,681 425 2,865 1,324 revenuesCosts and expenses: Lease operating 157 103 259 230 expensesProduction and ad 105 22 180 93 valorem taxesGathering and 56 36 87 72 transportationMidstream services 23 32 51 55 expenseDepreciation,depletion, 341 344 614 753 amortization andaccretionImpairment of oil andnatural gas ? 2,539 ? 3,548 propertiesGeneral andadministrative 36 20 61 44 expensesMerger and integration 2 ? 77 ? expenseOther operating 6 1 10 3 expense Total costs and 726 3,097 1,339 4,798 expensesIncome (loss) from 955 (2,672 ) 1,526 (3,474 ) operationsOther income (expense):Interest expense, (57 ) (46 ) (113 ) (94 ) netOther income (7 ) 3 (6 ) (6 ) (expense), netGain (loss) onderivative (497 ) (361 ) (661 ) 181 instruments,netGain (loss) on sale ofequity method 23 ? 23 ? investmentsLoss on extinguishment ? (3 ) (61 ) (3 ) of debtIncome (loss) fromequity 5 (13 ) 2 (13 ) investments Total other income (533 ) (420 ) (816 ) 65 (expense), netIncome (loss) before 422 (3,092 ) 710 (3,409 ) income taxesProvision for (benefitfrom) income 94 (681 ) 159 (598 ) taxesNet income (loss) 328 (2,411 ) 551 (2,811 )

Net income (loss)attributable to 17 (18 ) 20 (146 ) non-controllinginterestNet income (loss)attributable to $ 311 $ (2,393 ) $ 531 $ (2,665 ) Diamondback Energy,Inc. Earnings (loss) per common share:Basic $ 1.72 $ (15.16 ) $ 3.08 $ (16.86 ) Diluted $ 1.71 $ (15.16 ) $ 3.06 $ (16.86 ) Weighted averagecommon shares outstanding:Basic 181,009 157,829 172,636 158,060 Diluted 181,968 157,829 173,518 158,060 Dividends declared per $ 0.45 $ 0.375 $ 0.85 $ 0.75 share

Diamondback Energy, Inc.Consolidated Statements of Cash Flows(unaudited, in millions) Three Months Ended June Six Months Ended June 30, 30, 2021 2020 2021 2020Cash flows from operating activities:Net income (loss) $ 328 $ (2,411 ) $ 551 $ (2,811 ) Adjustments to reconcilenet income (loss) to net cash provided by (used in)operating activities:Provision for (benefitfrom) deferred income 91 (681 ) 155 (536 ) taxesImpairment of oil andnatural gas ? 2,539 ? 3,548 propertiesDepreciation, depletion,amortization and 341 344 614 753 accretionLoss on extinguishment of ? 3 61 3 debt(Gain) loss on derivative 497 361 661 (181 ) instruments, netCash received (paid) onsettlement of derivative (306 ) 210 (484 ) 297 instrumentsEquity-based compensation 13 9 23 18 expense(Gain) loss on sale ofequity method (23 ) ? (23 ) ? investmentsOther 3 16 13 28 Changes in operatingassets and liabilities:Accounts (35 ) 54 (172 ) 229 receivableIncome tax (1 ) ? 99 (62 ) receivablePrepaid expenses and (4 ) 5 18 1 otherAccounts payable andaccrued ? (15 ) (26 ) (50 ) liabilitiesRevenues and royalties 50 (64 ) 100 (50 ) payableOther ? (46 ) (12 ) (14 ) Net cash provided by (usedin) operating 954 324 1,578 1,173 activitiesCash flows from investing activities:Drilling, completions andnon-operated additions to (342 ) (488 ) (623 ) (1,178 ) oil and natural gaspropertiesInfrastructure additionsto oil and natural gas (14 ) (24 ) (22 ) (80 ) propertiesAdditions to midstream (10 ) (50 ) (17 ) (94 ) assetsPurchase of business and (68 ) (24 ) (410 ) (64 ) assets, netAcquisitions of mineral (1 ) ? (1 ) (65 ) interestsProceeds from sale of 100 ? 100 ? assetsFunds held in 1 ? 51 ? escrowContributions to equity (2 ) (33 ) (6 ) (66 ) method investmentsDistributions from equity 18 8 18 18 method investmentsProceeds from the sale ofequity method 23 ? 23 ? investmentsOther (16 ) (1 ) (11 ) (6 ) Net cash provided by (usedin) investing (311 ) (612 ) (898 ) (1,535 ) activitiesCash flows from financing activities:Proceeds from borrowingsunder credit 229 222 661 652 facilitiesRepayments under credit (325 ) (250 ) (780 ) (390 ) facilitiesProceeds from senior ? 497 2,200 497 notesRepayment of senior (191 ) (222 ) (2,107 ) (222 ) notesPremium on extinguishment ? ? (166 ) ? of debtProceeds from (repayments (6 ) 27 (10 ) 43 to) joint ventureRepurchased shares under ? ? ? (98 ) buyback programRepurchased units under (12 ) ? (36 ) ? buyback programDividends to (72 ) (59 ) (140 ) (118 ) stockholdersDistributions tonon-controlling (24 ) (19 ) (41 ) (62 ) interestFinancing portion of netcash received (paid) for (17 ) ? 59 ? derivativeinstrumentsOther (3 ) (4 ) (32 ) (9 ) Net cash provided by (usedin) financing (421 ) 192 (392 ) 293 activitiesNet increase (decrease) incash and cash 222 (96 ) 288 (69 ) equivalentsCash, cash equivalents andrestricted cash at 174 155 108 128 beginning ofperiodCash, cash equivalents andrestricted cash at end of $ 396 $ 59 $ 396 $ 59 period

Diamondback Energy, Inc.Consolidated Statements of Cash Flows - Continued(unaudited, in millions) Three Months Ended Six Months Ended June 30, June 30, 2021 2020 2021 2020Supplemental disclosure of non-cash transactions:Common stock issued for business $ ? $ ? $ 1,727 $ ? combinations

Diamondback Energy, Inc.Selected Operating Data(unaudited) Three Three Three Months Months Months Ended Ended Ended June 30, March 31, June 30, 2021 2021 2020Production Data: Oil (MBbls) 22,067 16,578 16,045 Natural gas (MMcf) 44,506 34,109 31,857 Natural gas liquids (MBbls) 7,047 5,405 5,411

Combined volumes (MBOE)^(1) 36,532 27,668 26,765

Daily oil volumes (BO/d)^(2) 242,495 184,200 176,323

Daily combined volumes (BOE/d)^(2) 401,451 307,422 294,126

Average Prices: Oil ($ per Bbl) $ 63.22 $ 56.94 $ 21.99 Natural gas ($ per Mcf) $ 2.40 $ 3.05 $ 0.63

Natural gas liquids ($ per Bbl) $ 23.41 $ 22.94 $ 7.17

Combined ($ per BOE) $ 45.63 $ 42.36 $ 15.39 Oil, hedged ($ per Bbl)^(3) $ 49.85 $ 46.81 $ 35.21

Natural gas, hedged ($ per Mcf)^(3) $ 1.82 $ 2.64 $ 0.33

Natural gas liquids, hedged ($ per $ 23.27 $ 22.76 $ 7.17 Bbl)^(3)Average price, hedged ($ per BOE)^ $ 36.82 $ 35.75 $ 22.95 (3) Average Costs per BOE: Lease operating $ 4.30 $ 3.69 $ 3.85 expensesProduction and ad valorem 2.87 2.71 0.83 taxesGathering and transportation 1.53 1.12 1.35 expenseGeneral and administrative - cash 0.63 0.54 0.41 componentTotal operating expense - $ 9.33 $ 8.06 $ 6.44 cash General and administrative - $ 0.36 $ 0.36 $ 0.33 non-cash componentDepletion $ 8.70 $ 9.29 $ 12.33 Interest expense, $ 1.56 $ 2.02 $ 1.72 net

(1) Bbl equivalents are calculated using a conversion rate of six Mcf per one Bbl.(2) The volumes presented are based on actual results and are not calculated using the rounded numbers in the table above. Hedged prices reflect the effect of our commodity derivative transactions(3) on our average sales prices. Our calculation of such effects includes realized gains and losses on cash settlements for matured commodity derivatives, which we do not designate for hedge accounting.

NON-GAAP FINANCIAL MEASURES

Adjusted EBITDA is a supplemental non-GAAP financial measure that is used by management and external users of our financial statements, such as industry analysts, investors, lenders and rating agencies. The Company defines Adjusted EBITDA as net income (loss) attributable to Diamondback Energy, Inc., plus net income (loss) attributable to non-controlling interest ("net income (loss)") before non-cash (gain) loss on derivative instruments, net, interest expense, net, depreciation, depletion, amortization and accretion, depreciation and interest expense related to equity method investments, impairment and abandonments related to equity method investments, (gain) loss on sale of equity method investments, loss on extinguishment of debt, impairment of oil and natural gas properties, non-cash equity-based compensation expense, capitalized equity-based compensation expense, merger and integration expense, other non-cash transactions and provision for (benefit from) income taxes, if any. Adjusted EBITDA is not a measure of net income as determined by United States generally accepted accounting principles ("GAAP"). Management believes Adjusted EBITDA is useful because the measure allows it to more effectively evaluate the Companys operating performance and compare the results of its operations from period to period without regard to its financing methods or capital structure. The Company adds the items listed above to net income (loss) in arriving at Adjusted EBITDA because these amounts can vary substantially from company to company within its industry depending upon accounting methods and book values of assets, capital structures and the method by which the assets were acquired. Adjusted EBITDA should not be considered as an alternative to, or more meaningful than, net income as determined in accordance with GAAP or as an indicator of the Companys operating performance or liquidity. Certain items excluded from Adjusted EBITDA are significant components in understanding and assessing a companys financial performance, such as a companys cost of capital and tax structure, as well as the historic costs of depreciable assets. The Companys computation of Adjusted EBITDA may not be comparable to other similarly titled measures of other companies or to such measure in our credit facility or any of our other contracts.

The following tables present a reconciliation of the GAAP financial measure of net income (loss) attributable to Diamondback Energy, Inc. to the non-GAAP financial measure of Adjusted EBITDA:

Diamondback Energy, Inc.Reconciliation of Net Income (Loss) to Adjusted EBITDA(unaudited, in millions) Three Three Three Months Months Months Ended Ended Ended June 30, June 30, March 31, 2020 2021 2021Net income (loss) attributable to $ 311 $ 220 $ (2,393 ) Diamondback Energy, Inc.Net income (loss) attributable to 17 3 (18 ) non-controlling interestNet income (loss) 328 $ 223 (2,411 ) Non-cash (gain) loss on derivative 174 62 571 instruments, netInterest expense, net 57 56 46 Depreciation, depletion, amortization 341 273 344 and accretionDepreciation and interest expenserelated to equity method 10 11 7 investmentsImpairment and abandonments related to ? 3 16 equity method investments(Gain) loss on sale of equity method (23 ) ? ? investmentsLoss on extinguishment of debt ? 61 3 Impairment of oil and natural gas ? ? 2,539 propertiesNon-cash equity-based compensation 18 14 11 expenseCapitalized equity-based compensation (5 ) (4 ) (2 ) expenseMerger and integration expense 2 75 ? Other non-cash transactions 5 6 (2 ) Provision for (benefit from) income 94 65 (681 ) taxesConsolidated Adjusted EBITDA 1,001 845 441 Less: Adjustment for non-controlling 30 9 27 interestAdjusted EBITDA attributable to $ 971 $ 836 $ 414 Diamondback Energy, Inc.

Adjusted net income is a non-GAAP financial measure equal to net income (loss) attributable to Diamondback Energy, Inc. plus net income (loss) attributable to non-controlling interest ("net income (loss)") adjusted for non-cash (gain) loss on derivative instruments, net, (gain) loss on sale of equity method investments, merger and integration expense, other non-cash transactions and related income tax adjustments, if any. The Companys computation of adjusted net income may not be comparable to other similarly titled measures of other companies or to such measure in our credit facility or any of our other contracts. Management believes Adjusted Net Income helps investors in the oil and natural gas industry to measure and compare the Company's performance to other oil and natural gas companies by excluding from the calculation items that can vary significantly from company to company depending upon accounting methods, the book value of assets and other non-operational factors.

The following table presents a reconciliation of adjusted net income to net income (loss) attributable to Diamondback Energy, Inc.:

Diamondback Energy, Inc.Adjusted Net Income(unaudited, in millions, except per share data) Three Months Ended June 30, 2021 Amounts Amounts Per Diluted ShareNet income (loss) attributable to Diamondback $ 311 $ 1.71 Energy, Inc.Net income (loss) attributable to non-controlling 17 0.09 interestNet income (loss) 328 1.80 Non-cash (gain) loss on derivative instruments, 174 0.96 net(Gain) loss on sale of equity method (23 ) (0.13 ) investmentsMerger and integration expense 2 0.01 Other non-cash transactions 5 0.03 Adjusted net income excluding above 486 2.67 itemsIncome tax adjustment for above (35 ) (0.19 ) itemsAdjusted net income 451 2.48 Less: Adjusted net income attributable to 14 0.08 non-controlling interestAdjusted net income attributable to Diamondback $ 437 $ 2.40 Energy, Inc. Weighted average common shares outstanding: Basic 181,009 Diluted 181,968

Operating cash flow before working capital changes, which is a non-GAAP financial measure representing net cash provided by operating activities as determined under GAAP without regard to changes in operating assets and liabilities. The Company believes operating cash flow before working capital changes is a useful measure of an oil and natural gas companys ability to generate cash used to fund exploration, development and acquisition activities and service debt or pay dividends. The Company also uses this measure because adjusted operating cash flow relates to the timing of cash receipts and disbursements that the Company may not control and may not relate to the period in which the operating activities occurred. This allows the Company to compare its operating performance with that of other companies without regard to financing methods and capital structure.

Free Cash Flow, which is a non-GAAP financial measure, is cash flow from operating activities before changes in working capital in excess of cash capital expenditures. The Company believes that Free Cash Flow is useful to investors as it provides a measure to compare both cash flow from operating activities and additions to oil and natural gas properties across periods on a consistent basis. These measures should not be considered as an alternative to, or more meaningful than, net cash provided by operating activities as an indicator of operating performance. The Company's computation of operating cash flow before working capital changes and Free Cash Flow may not be comparable to other similarly titled measures of other companies. The Company uses Free Cash Flow to reduce debt, and increase the return of capital to stockholders above the base dividend.

The following tables present a reconciliation of net cash provided by operating activities to operating cash flow before working capital changes and to Free Cash Flow:

Diamondback Energy, Inc.Operating Cash Flow(unaudited, in millions) Three Months Ended June Six Months Ended June 30, 30, 2021 2020 2021 2020Net cash provided by $ 954 $ 324 $ 1,578 $ 1,173 operating activitiesLess: Changes in cash dueto changes in operating assets andliabilities:Accounts (35 ) 54 (172 ) 229 receivableIncome tax (1 ) ? 99 (62 ) receivablePrepaid expenses and (4 ) 5 18 1 otherAccounts payable andaccrued ? (15 ) (26 ) (50 ) liabilitiesRevenues and royalties 50 (64 ) 100 (50 ) payableOther ? (46 ) (12 ) (14 ) Total working capital 10 (66 ) 7 54 changesOperating cash flowbefore working capital $ 944 $ 390 $ 1,571 $ 1,119 changes Operating cash flow per common share:Basic $ 5.22 $ 2.47 $ 9.10 $ 7.08 Diluted $ 5.19 $ 2.47 $ 9.05 $ 7.08 Weighted average common shares outstanding:Basic 181,009 157,829 172,636 158,060 Diluted 181,968 157,829 173,518 158,060

Diamondback Energy, Inc.Free Cash Flow(unaudited, in millions) Three Months Ended June 30, Six Months Ended June 30, 2021 2020 2021 2020Operating cash flow before $ 944 $ 390 $ 1,571 $ 1,119 working capital changes Drilling, completions andnon-operated additions to (342 ) (488 ) (623 ) (1,178 ) oil and natural gaspropertiesInfrastructure additionsto oil and natural gas (14 ) (24 ) (22 ) (80 ) propertiesAdditions to midstream (10 ) (50 ) (17 ) (94 ) assetsTotal Cash CAPEX (366 ) (562 ) (662 ) (1,352 )

Free Cash Flow $ 578 $ (172 ) $ 909 $ (233 )

Free cash flow per common share:Basic $ 3.19 $ (1.09 ) $ 5.27 $ (1.47 ) Diluted $ 3.18 $ (1.09 ) $ 5.24 $ (1.47 ) Weighted average common shares outstanding:Basic 181,009 157,829 172,636 158,060 Diluted 181,968 157,829 173,518 158,060

RECONCILIATION OF TOTAL DEBT TO NET DEBT

The Company defines net debt as total debt less cash and cash equivalents. Net debt should not be considered an alternative to, or more meaningful than, total debt, the most directly comparable GAAP measure. Management uses net debt to determine the Company's outstanding debt obligations that would not be readily satisfied by its cash and cash equivalents on hand. The Company believes this metric is useful to analysts and investors in determining the Company's leverage position because the Company has the ability to, and may decide to, use a portion of its cash and cash equivalents to reduce debt.

Net Q2 March 31, December 31, June 30, 2021 Borrowings/ 2021 2020 June 30, 2020 (Repayments) (in millions)DiamondbackEnergy, $ 6,373 $ (250 ) $ 6,623 $ 4,713 $ 4,822 Inc.^(a)ViperEnergy 542 5 537 564 640 Partners LP^(a)RattlerMidstream 505 (49 ) 554 579 523 LP^(a)Total debt 7,420 $ (294 ) 7,714 5,856 5,985 Cash andcash (344 ) (121 ) (104 ) (51 ) equivalentsNet debt $ 7,076 $ 7,593 $ 5,752 $ 5,934

(a) Excludes debt issuance costs, discounts, premiums and fair value hedges.

DERIVATIVES

As of July 30, 2021, the Company had the following outstanding consolidated derivative contracts, including derivative contracts at Viper Energy Partners LP. The Companys derivative contracts are based upon reported settlement prices on commodity exchanges, with crude oil derivative settlements based on New York Mercantile Exchange West Texas Intermediate pricing and Crude Oil Brent pricing and with natural gas derivative settlements based on the New York Mercantile Exchange Henry Hub pricing. When aggregating multiple contracts, the weighted average contract price is disclosed.

Crude Oil (Bbls/day, $/Bbl) Q3 2021 Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022Swaps - WTI 38,348 30,674 1,000 1,000 ? ?(Cushing) $ 42.82 $ 42.36 $ 45.00 $ 45.00 ? ?Swaps - WTI 5,000 5,000 ? ? ? ?(Magellan EastHouston) $ 37.78 $ 37.78 ? ? ? ?

Swaps - Crude 5,000 5,000 ? ? ? ?Brent Oil^(1) $ 41.62 $ 41.62 ? ? ? ?Costless Collars 17,685 29,663 19,500 11,000 ? ?- WTI (Cushing)Long Put Price $ 35.27 $ 39.83 $ 46.28 $ 47.27 ? ?($/Bbl)Ceiling Price ($ $ 46.50 $ 56.45 $ 72.67 $ 74.07 ? ?/Bbl)Costless Collars- WTI (Magellan 5,000 5,000 22,000 22,000 6,000 ?East Houston)Long Put Price $ 45.00 $ 45.00 $ 45.91 $ 46.36 $ 50.00 ?($/Bbl)Ceiling Price ($ $ 57.90 $ 78.75 $ 70.95 $ 72.20 $ 77.12 ?/Bbl)Costless Collars- Crude Brent 67,000 59,000 55,000 32,000 9,000 5,000OilLong Put Price $ 40.39 $ 40.95 $ 45.55 $ 46.25 $ 47.22 $ 45.00($/Bbl)Ceiling Price ($ $ 49.28 $ 50.93 $ 71.08 $ 76.81 $ 78.34 $ 75.56/Bbl)Long Puts - WTI ? ? 7,500 ? ? ?(Cushing)^(2) ? ? $ 47.51 ? ? ?Long Puts - ? ? 4,000 4,000 ? ?Crude Brent Oil^(3) ? ? $ 50.00 $ 50.00 ? ?

Basis Swaps - 34,000 34,000 10,000 10,000 10,000 10,000WTI (Midland) $ 0.91 $ 0.91 $ 0.84 $ 0.84 $ 0.84 $ 0.84Roll Swaps - WTI 57,261 64,000 20,000 20,000 20,000 20,000 $ 0.50 $ 0.56 $ 0.54 $ 0.54 $ 0.54 $ 0.54

Natural Gas (Mmbtu/day, $/Mmbtu) Q3 2021 Q4 2021 Q1 2022 Q2 2022 Q3 2022 Q4 2022Natural 245,000 245,000 ? ? ? ?Gas Swaps- Henry $ 2.65 $ 2.65 ? ? ? ?HubNatural 50,000 50,000 ? ? ? ?Gas Swaps- Waha Hub $ 1.92 $ 1.92 ? ? ? ?

CostlessCollars - ? ? 250,000 190,000 80,000 80,000Henry HubLong PutPrice ($/ ? ? $ 2.64 $ 2.53 $ 2.50 $ 2.50Mmbtu)CeilingPrice ($/ ? ? $ 4.44 $ 4.01 $ 4.45 $ 4.45Mmbtu)Natural 250,000 250,000 210,000 210,000 210,000 210,000Gas BasisSwaps - $ -0.66 $ -0.66 $ -0.34 $ -0.34 $ -0.34 $ -0.34Waha Hub

Natural Gas Liquids (Bbls/day, $/Bbl) Q3 2021 Q4 2021 Q1 Q2 Q3 Q4 2022 2022 2022 2022Natural Gas Liquids Swaps - Mont 2,000 2,000 ? ? ? ?Belvieu Propane $ 29.40 $ 29.40 ? ? ? ?

Excludes swaptions for 13,900 BO/d for first half of 2022, and 8,250 BO/d(1) for second half 2022, whereby the counterparty has the right to exercise the hedge at a weighted-average price of $67.54/Bbl in the first half of 2022 and $68.62/Bbl in the second half of 2022.(2) Excludes deferred premium at the weighted-average price of $1.66/Bbl.(3) Excludes deferred premium at the weighted-average price of $1.60/Bbl.

Investor Contact:Adam Lawlis+1 432.221.7467alawlis@diamondbackenergy.com