Exhibit 99.1

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Mammoth Energy Services, Inc. Announces
Fourth Quarter and Full Year 2021 Operational and Financial Results


OKLAHOMA CITY - March 4, 2022 - Mammoth Energy Services, Inc. (“Mammoth” or the “Company”) (NASDAQ: TUSK) today reported financial and operational results for the fourth quarter and full year ended December 31, 2021.

Financial Overview for the Fourth Quarter and Full Year 2021:

Total revenue was $57.2 million for the fourth quarter of 2021, as compared to $85.1 million for the same quarter of 2020 and $57.5 million for the third quarter of 2021. Total revenue was $229.0 million for the year ended December 31, 2021 as compared to $313.1 million for the year ended December 31, 2020.

Net loss for the fourth quarter of 2021 was $13.3 million, or a $0.28 loss per share, as compared to $11.9 million, or a $0.26 loss per share, for the same quarter of 2020, and $40.9 million, or a $0.88 loss per share, for the third quarter of 2021. Net loss for the year ended December 31, 2021 was $101.4 million, or $2.18 per fully diluted share, as compared to net loss of $107.6 million, or $2.36 per fully diluted share for the year ended December 31, 2020.

Adjusted EBITDA (as defined and reconciled below) increased to $17.2 million for the fourth quarter of 2021, as compared to $7.5 million for the same quarter of 2020 and ($29.7) million for the third quarter of 2021. Adjusted EBITDA was ($11.6) million for the year ended December 31, 2021, as compared to $50.0 million for the year ended December 31, 2020. During the third quarter of 2021, Mammoth recognized expense of $32.6 million related to its settlement with Gulfport Energy Corporation. Excluding this non-recurring expense, adjusted EBITDA was $2.9 million for the third quarter of 2021 and $21.0 million for the full year 2021.

Arty Straehla, Chief Executive Officer of Mammoth commented, “We ended the year sustaining sequential quarterly momentum on top line revenues and reducing net loss. I’m proud of the progress our team is making to further enhance our efficient fixed cost model. We have implemented a cost management structure and methodical operational processes that we believe will enable significant top line growth without meaningfully changing our SG&A structure.

“As we enter 2022, we see improved macro-economic trends that we believe will drive increased demand for our two largest business segments, well completion services and infrastructure services,” added Straehla. “In addition, we continue to vigorously pursue numerous avenues to collect our receivable from PREPA for work performed by our subsidiary Cobra Acquisitions LLC in Puerto Rico. We believe that published documentation to date continues to show that our team performed a difficult job in a difficult environment to save lives and aid the people of Puerto Rico in their time of need.”

Infrastructure Services
Mammoth’s infrastructure services division contributed revenue of $19.7 million, or approximately 34% of Mammoth’s total revenue, for the fourth quarter of 2021, as compared to $56.6 million for the same quarter of 2020 and $25.1 million for the third quarter of 2021. The decrease in revenue compared to the same quarter of 2020 is primarily due to a decline in storm activity, resulting in lower storm restoration revenue.




The infrastructure segment contributed revenues of $93.4 million for the year ended December 31, 2021, down from $157.8 million for the year ended December 31, 2020. The decrease in revenue is primarily due to a decline in storm activity, resulting in lower storm restoration revenue, as well as management and crew turnover.

Well Completion Services
Mammoth’s well completion services division contributed revenue (inclusive of inter-segment revenue) of $21.3 million on 891 stages for the fourth quarter of 2021, as compared to $12.7 million on 291 stages for the same quarter of 2020 and $22.7 million on 688 stages for the third quarter of 2021. On average, 1.6 of the Company’s fleets were active for the fourth quarter of 2021, compared to an average utilization of 0.6 fleets during the same quarter of 2020 and 1.2 fleets during the third quarter of 2021.

The well completion division contributed revenues (inclusive of inter-segment revenues) of $84.3 million on 2,544 stages for the year ended December 31, 2021, down from $88.3 million on 2,880 stages for the year ended December 31, 2020. On average, 1.1 of the Company’s fleets were active for the year ended December 31, 2021 compared to 1.5 fleets for the year ended December 31, 2020.
Natural Sand Proppant Services
Mammoth’s natural sand proppant services division contributed revenue (inclusive of inter-segment revenue) of $10.8 million for the fourth quarter of 2021, as compared to $11.8 million for the same quarter of 2020 and $8.4 million for the third quarter of 2021. In the fourth quarter of 2021, the Company sold approximately 270,000 tons of sand at an average sales price of $17.84 per ton, as compared to sales of approximately 100,000 tons of sand at an average sales price of $15.59 per ton during the same quarter of 2020. In the third quarter of 2021, sales were approximately 315,000 tons of sand at an average price of $16.58 per ton.

The natural sand proppant division contributed revenues (inclusive of inter-segment revenues) of $34.9 million for the year ended December 31, 2021, as compared to $34.4 million for the year ended December 31, 2020. The Company sold 1.0 million tons of sand during the year ended December 31, 2021, an increase from 0.5 million tons of sand during the year ended December 31, 2020. The Company’s average sales price for the sand sold during the year ended December 31, 2021 was $16.76 per ton, an increase from $14.58 per ton average sales price during the year ended December 31, 2020.

Drilling Services
Mammoth’s drilling services division contributed revenue (inclusive of inter-segment revenue) of $1.0 million for the fourth quarter of 2021, as compared to $0.6 million for the same quarter of 2020 and $1.2 million for the third quarter of 2021. The drilling services division contributed revenues of $4.3 million for the year ended December 31, 2021, as compared to $7.8 million for the year ended December 31, 2020.

The Company temporarily shut down its contract land drilling operations beginning in December 2019 and its rig hauling operations beginning in April 2020.

Other Services
Mammoth’s other services, including aviation, coil tubing, pressure control, equipment rentals, crude oil hauling, full-service transportation, remote accommodations and equipment manufacturing, contributed revenue (inclusive of inter-segment revenue) of $4.9 million for the fourth quarter of 2021, as compared to $4.0 million for the same quarter of 2020 and $4.6 million for the third quarter of 2021. The Company’s other services contributed revenues of $18.5 million for the year ended December 31, 2021, as compared to $28.8 million for the year ended December 31, 2020.

As a result of market conditions, the Company temporarily shut down its cementing and acidizing operations as well as its flowback operations beginning in July 2019, its coil tubing and full-service transportation operations beginning in July 2020 and its crude oil hauling operations beginning in July 2021.

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Selling, General and Administrative Expenses
Selling, general and administrative (“SG&A”) expenses were $3.5 million for the fourth quarter of 2021, as compared to $30.5 million for the same quarter of 2020 and $41.9 million for the third quarter of 2021.
Following is a breakout of SG&A expense (in thousands):
Three Months EndedTwelve Months Ended
December 31,September 30,December 31,
20212020202120212020
Cash expenses:
Compensation and benefits$3,685 $3,738 $3,353 $15,064 $14,876 
Professional services(a)
(2,383)4,570 4,571 11,400 19,905 
Other(b)
1,994 2,256 2,252 9,052 8,828 
Total cash SG&A expense3,296 10,564 10,176 35,516 43,609 
Non-cash expenses:
Bad debt provision(c)
12 19,652 31,449 41,662 21,958 
Stock based compensation241 292 241 1,068 1,618 
Total non-cash SG&A expense253 19,944 31,690 42,730 23,576 
Total SG&A expense$3,549 $30,508 $41,866 $78,246 $67,185 
a.    Certain legal expenses incurred during 2021 were reclassified to Other, net during the fourth quarter of 2021.
b.    Includes travel-related costs, information technology expenses, rent, utilities and other general and administrative-related costs.
c.    The bad debt provision for the years ended December 31, 2021 and 2020 includes $41.2 million and $19.4 million, respectively, related to the Stingray Pressure Pumping and Muskie contracts with Gulfport.

SG&A expenses, as a percentage of total revenue, were 6% for the fourth quarter of 2021, as compared to 36% for the same quarter of 2020 and 73% for the third quarter of 2021. SG&A expenses, as a percentage of total revenue, were 34% for the year ended December 31, 2021, as compared to 21% for the year ended December 31, 2020.

Liquidity
As of December 31, 2021, Mammoth had cash on hand of $9.9 million, outstanding borrowings under its revolving credit facility of $83.4 million and $16.5 million of available borrowing capacity under its revolving credit facility, after giving effect to $9.0 million of outstanding letters of credit and the requirement to maintain a $10 million reserve out of the available borrowing capacity. As of December 31, 2021, Mammoth had total liquidity of $26.4 million.
On February 28, 2022, Mammoth amended its revolving credit facility to, among other things, amend certain financial covenants, provide for a conditional increase of the applicable interest margin, permit certain sale-leaseback transactions, provide for a reduction in the maximum revolving advance amount in an amount equal to 50% of the PREPA claims proceeds, subject to a floor equal to the sum of eligible billed and unbilled accounts receivables, and classify the payments pursuant to its previously disclosed settlement agreement with MasTec Renewables Puerto Rico, LLC as restricted payments, requiring $20.0 million of availability both before and after making such payments. The amendment also permanently waived compliance by us and our subsidiaries with the leverage ratio and fixed charge coverage ratio covenants in our revolving credit facility for the fiscal quarters ended September 30, 2021 and December 31, 2021, respectively, ending the prior limited covenant waiver period.

As of March 2, 2022, Mammoth had cash on hand of $7.2 million and outstanding borrowings under its revolving credit facility of $83.7 million. As of March 2, 2022, the Company had $10.6 million of available borrowing capacity under its revolving credit facility, after giving effect to $8.5 million of outstanding letters of credit and the requirement to maintain a $7.5 million reserve out of the available borrowing capacity.

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Capital Expenditures
The following table summarizes Mammoth’s capital expenditures by operating division for the periods indicated (in thousands):
Three Months EndedTwelve Months Ended
December 31,September 30,December 31,
20212020202120212020
Infrastructure services(a)
$153 $37 $181 $627 $258 
Well completion services(b)
1,135 606 2,392 4,327 4,358 
Natural sand proppant services(c)
55 16 484 1,073 
Drilling services(d)
234 44 432 
Other(e)
25 172 361 716 
Total capital expenditures$1,369 $888 $2,765 $5,843 $6,837 
a.     Capital expenditures primarily for truck, tooling and equipment purchases for the periods presented.
b.     Capital expenditures primarily for upgrades to our pressure pumping fleet and water transfer equipment for the periods presented.
c.    Capital expenditures primarily for maintenance for the periods presented.
d.    Capital expenditures primarily for directional drilling equipment for the periods presented.
e.    Capital expenditures primarily for equipment for the Company’s rental businesses for the periods presented.

Conference Call Information
Mammoth will host a conference call on Friday, March 4, 2022 at 8:00 a.m. Central time (9:00 a.m. Eastern time) to discuss its fourth quarter and full year 2021 financial and operational results. The telephone number to access the conference call is 216-562-0385. The conference call will also be webcast live on https://ir.mammothenergy.com/events-presentations.

About Mammoth Energy Services, Inc.
Mammoth is an integrated, growth-oriented energy services company focused on the construction and repair of the electric grid for private utilities, public investor-owned utilities and co-operative utilities through its infrastructure services businesses. The Company also provides products and services to enable the exploration and development of North American onshore unconventional oil and natural gas reserves. Mammoth’s suite of services and products include: infrastructure services, well completion services, natural sand and proppant services, drilling services and other energy services. For more information, please visit www.mammothenergy.com.

Contacts:
Mark Layton, CFO
Mammoth Energy Services, Inc
investors@mammothenergy.com

Rick Black / Ken Dennard
Dennard Lascar Investor Relations
TUSK@dennardlascar.com

Forward-Looking Statements and Cautionary Statements
This news release (and any oral statements made regarding the subjects of this release, including on the conference call announced herein) contains certain statements and information that may constitute “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act of 1995. All statements, other than statements of historical facts that address activities, events or developments that Mammoth expects, believes or anticipates will or may occur in the future are forward-looking statements. The words “anticipate,” “believe,” “ensure,” “expect,” “if,” “intend,” “plan,” “estimate,” “project,” “forecasts,” “predict,” “outlook,” “aim,” “will,” “could,” “should,” “potential,” “would,” “may,” “probable,” “likely” and similar expressions, and the negative thereof, are intended to identify forward-looking statements. Without limiting the generality of the foregoing, forward-looking statements contained in this press release specifically include statements, estimates and projections regarding the Company’s business outlook and plans, future financial position, liquidity and capital resources, operations, performance, acquisitions, returns, capital expenditure budgets, costs and other guidance regarding future developments. Forward-looking statements are not assurances of future performance. These forward-looking statements
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are based on management’s current expectations and beliefs, forecasts for the Company’s existing operations, experience and perception of historical trends, current conditions, anticipated future developments and their effect on Mammoth, and other factors believed to be appropriate. Although management believes that the expectations and assumptions reflected in these forward-looking statements are reasonable as and when made, no assurance can be given that these assumptions are accurate or that any of these expectations will be achieved (in full or at all). Moreover, the Company’s forward-looking statements are subject to significant risks and uncertainties, including those described in its Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and other filings it makes with the SEC, including those relating to the Company’s acquisitions and contracts, many of which are beyond the Company’s control, which may cause actual results to differ materially from historical experience and present expectations or projections which are implied or expressed by the forward-looking statements. Important factors that could cause actual results to differ materially from those in the forward-looking statements include, but are not limited to: the severity and duration of the COVID-19 pandemic, related global and national health concerns and economic repercussions and the resulting negative impact on demand for our services; the volatility of oil and natural gas prices and actions by OPEC members and other exporting nations affecting commodities prices and production levels; the impact of the current Russian/Ukrainian military conflict on the global energy and capital markets and global stability; operational challenges relating to the COVID-19 pandemic and efforts to mitigate the spread of the virus, including logistical challenges, protecting the health and well-being of our employees, remote work arrangements, performance of contracts and supply chain disruptions; the outcome of ongoing government investigations and other legal proceedings, including those relating to the contracts awarded to the Company’s subsidiary Cobra Acquisitions LLC ("Cobra") by the Puerto Rico Electric Power Authority ("PREPA"); the failure to receive or delays in receiving governmental authorizations, approvals and/or payments, including payments with respect to the PREPA account receivable for prior services to PREPA performed by Cobra; the Company’s inability to replace the prior levels of work in its business segments, including its infrastructure and well completion services segments; risks relating to economic conditions; whether a federal infrastructure bill is implemented and the terms thereof; the loss of or interruption in operations of one or more of Mammoth’s significant suppliers or customers; the loss of management and/or crews; the outcome or settlement of our litigation matters, including the adverse impact of the recent settlements with Gulfport Energy Corporation and MasTec Renewables Puerto Rico, LLC, and the effect on our financial condition and results of operations; the effects of government regulation, permitting and other legal requirements; operating risks; the adequacy of capital resources and liquidity; Mammoth’s ability to continue to comply with, or if applicable, obtain a waiver of forecasted or actual noncompliance with certain financial covenants and comply with other terms and conditions under our recently amended revolving credit facility; weather; natural disasters; litigation; volatility in commodity markets; competition in the oil and natural gas and infrastructure industries; and costs and availability of resources.

Investors are cautioned not to place undue reliance on any forward-looking statement which speaks only as of the date on which such statement is made. We undertake no obligation to correct, revise or update any forward-looking statement after the date such statement is made, whether as a result of new information, future events or otherwise, except as required by applicable law.

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MAMMOTH ENERGY SERVICES, INC.
CONSOLIDATED BALANCE SHEETS

ASSETSDecember 31,December 31,
20212020
CURRENT ASSETS(in thousands)
Cash and cash equivalents$9,899 $14,822 
Short-term investment1,762 1,750 
Accounts receivable, net407,550 393,112 
Receivables from related parties, net88 28,461 
Inventories8,366 12,020 
Prepaid expenses12,381 13,825 
Other current assets737 758 
Total current assets440,783 464,748 
Property, plant and equipment, net176,586 251,262 
Sand reserves64,641 65,876 
Operating lease right-of-use assets12,168 20,179 
Intangible assets, net2,561 4,774 
Goodwill11,717 12,608 
Deferred income tax asset8,094 — 
Other non-current assets4,342 5,115 
Total assets$720,892 $824,562 
LIABILITIES AND EQUITY
CURRENT LIABILITIES
Accounts payable$37,560 $40,319 
Accrued expenses and other current liabilities62,516 44,408 
Current operating lease liability5,942 8,618 
Current portion of long-term debt1,468 1,165 
Income taxes payable42,748 34,088 
Total current liabilities150,234 128,598 
Long-term debt, net of current portion85,240 81,338 
Deferred income tax liabilities865 24,741 
Long-term operating lease liability5,918 11,377 
Asset retirement obligation3,720 4,746 
Other liabilities11,693 10,435 
Total liabilities257,670 261,235 
COMMITMENTS AND CONTINGENCIES
EQUITY
Equity:
Common stock, $0.01 par value, 200,000,000 shares authorized, 46,684,065 and 45,769,283 issued and outstanding at December 31, 2021 and December 31, 2020467 458 
Additional paid in capital538,221 537,039 
Retained earnings(72,535)28,895 
Accumulated other comprehensive loss(2,931)(3,065)
Total equity463,222 563,327 
Total liabilities and equity$720,892 $824,562 


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MAMMOTH ENERGY SERVICES, INC.
CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME


Three Months EndedTwelve Months Ended
December 31,September 30,December 31,
20212020202120212020
(in thousands, except per share amounts)
REVENUE
Services revenue$46,262 $65,079 $52,417 $182,236 $234,081 
Services revenue - related parties104 7,862 601 15,782 43,091 
Product revenue10,867 10,234 4,467 28,799 28,404 
Product revenue - related parties— 1,875 — 2,145 7,500 
Total revenue57,233 85,050 57,485 228,962 313,076 
COST AND EXPENSES
Services cost of revenue (exclusive of depreciation, depletion, amortization and accretion of $15,953, $19,780, $35,857, $69,401 and $85,481, respectively, for the three months ended December 31, 2021, December 31, 2020 and September 30, 2021 and years ended December 31, 2021 and 2020)41,572 51,260 43,538 170,275 205,657 
Services cost of revenue - related parties (exclusive of depreciation, depletion, amortization and accretion of $0, $0, $0, $0 and $0, respectively, for the three months ended December 31, 2021, December 31, 2020 and September 30, 2021 and years ended December 31, 2021 and 2020)134 90 181 531 418 
Product cost of revenue (exclusive of depreciation, depletion, amortization and accretion of $1,943, $2,387, $4,667, $8,993 and $9,758, respectively, for the three months ended December 31, 2021, December 31, 2020 and September 30, 2021 and years ended December 31, 2021 and 2020)4,581 4,083 9,865 27,520 25,946 
Selling, general and administrative3,549 30,364 41,866 77,861 66,427 
Selling, general and administrative - related parties— 144 — 385 758 
Depreciation, depletion, amortization and accretion17,916 22,187 19,148 78,475 95,317 
Impairment of goodwill891 — — 891 54,973 
Impairment of other long-lived assets665 — 547 1,212 12,897 
Total cost and expenses69,308 108,128 115,145 357,150 462,393 
Operating loss(12,075)(23,078)(57,660)(128,188)(149,317)
OTHER INCOME (EXPENSE)
Interest expense, net(2,528)(1,191)(1,484)(6,406)(5,397)
Other income, net4,813 9,559 11,056 10,816 33,048 
Other (expense) income, net - related parties— (341)— (515)1,890 
Total other income2,285 8,027 9,572 3,895 29,541 
Loss before income taxes(9,790)(15,051)(48,088)(124,293)(119,776)
Provision (benefit) for income taxes3,507 (3,190)(7,187)(22,863)(12,169)
Net loss$(13,297)$(11,861)$(40,901)$(101,430)$(107,607)
OTHER COMPREHENSIVE LOSS
Foreign currency translation adjustment, net of tax of $0, ($170), ($69), ($36) and ($54), respectively, for the three months ended December 31, 2021, December 31, 2020 and September 30, 2021 and years ended December 31, 2021 and 2020)16 663 (289)134 241 
Comprehensive loss$(13,281)$(11,198)$(41,190)$(101,296)$(107,366)
Net loss per share (basic)$(0.28)$(0.26)$(0.88)$(2.18)$(2.36)
Net loss per share (diluted)$(0.28)$(0.26)$(0.88)$(2.18)$(2.36)
Weighted average number of shares outstanding (basic)46,683 45,769 46,683 46,428 45,644 
Weighted average number of shares outstanding (diluted) 46,683 45,769 46,683 46,428 45,644 

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MAMMOTH ENERGY SERVICES, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS

Twelve Months Ended
December 31,
20212020
(in thousands)
Cash flows from operating activities:
Net loss$(101,430)$(107,607)
Adjustments to reconcile net loss to cash (used in) provided by operating activities:
Stock based compensation1,191 1,952 
Depreciation, depletion, accretion and amortization78,475 95,317 
Amortization of coil tubing strings— 359 
Amortization of debt origination costs665 831 
Bad debt expense41,662 21,958 
Gain on disposal of property and equipment(5,435)(1,379)
Impairment of goodwill891 54,973 
Impairment of other long-lived assets1,212 12,897 
Deferred income taxes(32,005)(12,186)
Other280 (143)
Changes in assets and liabilities:
Accounts receivable, net(55,898)(32,621)
Receivables from related parties28,373 (40,333)
Inventories3,654 5,103 
Prepaid expenses and other assets1,444 1,996 
Accounts payable(2,981)2,526 
Payables to related parties(1)(522)
Accrued expenses and other liabilities12,380 3,198 
Income taxes payable8,658 648 
Net cash (used in) provided by operating activities(18,865)6,967 
Cash flows from investing activities:
Purchases of property and equipment(5,843)(6,761)
Purchases of property and equipment from related parties— (76)
Contributions to equity investee— (490)
Proceeds from disposal of property and equipment11,350 6,782 
Purchase of short-term investment— (1,750)
Net cash provided by (used in) investing activities5,507 (2,295)
Cash flows from financing activities:
Borrowings on long-term debt73,100 35,351 
Repayments of long-term debt(68,911)(32,800)
Proceeds from sale-leaseback transaction9,473 5,000 
Payments on sale-leaseback transaction(2,951)(268)
Principal payments on financing leases and equipment financing notes(2,283)(1,966)
Debt issuance costs— (1,051)
Net cash provided by financing activities8,428 4,266 
Effect of foreign exchange rate on cash12 
Net change in cash and cash equivalents(4,923)8,950 
Cash and cash equivalents at beginning of period14,822 5,872 
Cash and cash equivalents at end of period$9,899 $14,822 
Supplemental disclosure of cash flow information:
Cash paid for interest$4,827 $4,729 
Cash paid for income taxes, net of refunds received$829 $(617)
Supplemental disclosure of non-cash transactions:
Purchases of property and equipment included in accounts payable$1,535 $1,312 
Right-of-use assets obtained for financing lease liabilities$1,750 $2,431 

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MAMMOTH ENERGY SERVICES, INC.
SEGMENT INCOME STATEMENTS
(in thousands)
Three months ended December 31, 2021InfrastructureWell CompletionSandDrillingAll OtherEliminationsTotal
Revenue from external customers$19,714 $21,251 $10,849 $963 $4,456 $— $57,233 
Intersegment revenues— 25 — 69 414 (508)— 
Total revenue19,714 21,276 10,849 1,032 4,870 (508)57,233 
Cost of revenue, exclusive of depreciation, depletion, amortization and accretion20,096 16,443 4,601 1,363 3,784 — 46,287 
Intersegment cost of revenues31 321 — — 156 (508)— 
Total cost of revenue20,127 16,764 4,601 1,363 3,940 (508)46,287 
Selling, general and administrative(1,017)2,164 1,243 309 850 — 3,549 
Depreciation, depletion, amortization and accretion4,380 6,709 1,946 1,812 3,069 — 17,916 
Impairment of goodwill891 — — — — — 891 
Impairment of other long-lived assets665 — — — — — 665 
Operating (loss) income(5,332)(4,361)3,059 (2,452)(2,989)— (12,075)
Interest expense, net1,613 419 183 116 197 — 2,528 
Other (income) expense, net (4,131)(121)18 23 (602)— (4,813)
(Loss) income before income taxes$(2,814)$(4,659)$2,858 $(2,591)$(2,584)$— $(9,790)
Three months ended December 31, 2020InfrastructureWell CompletionSandDrillingAll OtherEliminationsTotal
Revenue from external customers$56,636 $12,653 $11,843 $580 $3,338 $— $85,050 
Intersegment revenues— 44 — 23 670 (737)— 
Total revenue56,636 12,697 11,843 603 4,008 (737)85,050 
Cost of revenue, exclusive of depreciation, depletion, amortization and accretion41,895 5,194 4,110 1,165 3,069 — 55,433 
Intersegment cost of revenues127 426 — — 184 (737)— 
Total cost of revenue42,022 5,620 4,110 1,165 3,253 (737)55,433 
Selling, general and administrative7,323 17,692 4,070 373 1,050 — 30,508 
Depreciation, depletion, amortization and accretion6,957 7,066 2,390 2,224 3,550 — 22,187 
Operating income (loss)334 (17,681)1,273 (3,159)(3,845)— (23,078)
Interest expense, net691 273 95 127 — 1,191 
Other (income) expense, net(8,355)170 86 23 (1,142)— (9,218)
Income (loss) before income taxes$7,998 $(18,124)$1,092 $(3,187)$(2,830)$— $(15,051)
Three months ended September 30, 2021InfrastructureWell CompletionSandDrillingAll OtherEliminationsTotal
Revenue from external customers$25,070 $22,702 $4,439 $1,184 $4,090 $— $57,485 
Intersegment revenues— 30 3,980 23 482 (4,515)— 
Total revenue25,070 22,732 8,419 1,207 4,572 (4,515)57,485 
Cost of revenue, exclusive of depreciation, depletion, amortization and accretion21,844 18,125 9,368 1,566 3,614 — 54,517 
Intersegment cost of revenues54 3,204 — — 324 (4,515)(933)
Total cost of revenue21,898 21,329 9,368 1,566 3,938 (4,515)53,584 
Selling, general and administrative4,979 34,606 1,068 288 925 — 41,866 
Depreciation, depletion, amortization and accretion4,933 6,538 2,533 1,942 3,202 — 19,148 
Impairment of other long-lived assets— — — — 547 — 547 
Operating loss(6,740)(39,741)(4,550)(2,589)(4,040)— (57,660)
Interest expense, net979 215 107 56 127 — 1,484 
Other (income) expense, net(9,256)755 (46)(66)(2,443)— (11,056)
Income (loss) before income taxes$1,537 $(40,711)$(4,611)$(2,579)$(1,724)$— $(48,088)

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MAMMOTH ENERGY SERVICES, INC.
SEGMENT INCOME STATEMENTS
(in thousands)
Year ended December 31, 2021InfrastructureWell CompletionSandDrillingAll OtherEliminationsTotal
Revenue from external customers$93,403 $84,190 $30,880 $4,197 $16,292 $— $228,962 
Intersegment revenues— 144 3,980 124 2,218 (6,466)— 
Total revenue93,403 84,334 34,860 4,321 18,510 (6,466)228,962 
Cost of revenue, exclusive of depreciation, depletion, amortization and accretion90,363 58,782 27,232 6,102 15,847 — 198,326 
Intersegment cost of revenues196 5,770 — — 500 (6,466)— 
Total cost of revenue90,559 64,552 27,232 6,102 16,347 (6,466)198,326 
Selling, general and administrative18,267 49,275 5,351 1,414 3,939 — 78,246 
Depreciation, depletion, amortization and accretion21,880 26,377 9,005 7,996 13,217 — 78,475 
Impairment of goodwill891 — — — — — 891 
Impairment of other long-lived assets665 — — — 547 — 1,212 
Operating loss(38,859)(55,870)(6,728)(11,191)(15,540)— (128,188)
Interest expense, net3,925 1,107 474 293 607 — 6,406 
Other (income) expense, net (6,785)1,073 (874)(177)(3,538)— (10,301)
Loss before income taxes$(35,999)$(58,050)$(6,328)$(11,307)$(12,609)$— $(124,293)

Year ended December 31, 2020InfrastructureWell CompletionSandDrillingAll OtherEliminationsTotal
Revenue from external customers$157,751 $87,201 $34,265 $7,746 $26,113 $— $313,076 
Intersegment revenues— 1,124 95 39 2,716 (3,974)— 
Total revenue157,751 88,325 34,360 7,785 28,829 (3,974)313,076 
Cost of revenue, exclusive of depreciation, depletion, amortization and accretion124,232 45,647 25,955 10,757 25,430 — 232,021 
Intersegment cost of revenues323 1,836 — 152 1,663 (3,974)— 
Total cost of revenue124,555 47,483 25,955 10,909 27,093 (3,974)232,021 
Selling, general and administrative27,261 23,039 7,807 3,149 5,930 — 67,186 
Depreciation, depletion, amortization and accretion29,373 30,411 9,771 10,039 15,722 — 95,316 
Impairment of goodwill— 53,406 — — 1,567 — 54,973 
Impairment of other long-lived assets— 4,203 — 326 8,368 — 12,897 
Operating loss(23,438)(70,217)(9,173)(16,638)(29,851)— (149,317)
Interest expense, net2,794 1,130 312 454 707 — 5,397 
Other (income) expense, net (32,437)(2,274)1,839 (227)(1,839)— (34,938)
Income (loss) before income taxes$6,205 $(69,073)$(11,324)$(16,865)$(28,719)$— $(119,776)

10

MAMMOTH ENERGY SERVICES, INC.
RECONCILIATION OF NON-GAAP FINANCIAL MEASURES

Adjusted EBITDA

Adjusted EBITDA is a supplemental non-GAAP financial measure that is used by management and external users of the Company’s financial statements, such as industry analysts, investors, lenders and rating agencies. Mammoth defines Adjusted EBITDA as net income (loss) before depreciation, depletion, amortization and accretion expense, impairment of goodwill, impairment of other long-lived assets, public offering costs, stock based compensation, interest expense, net, other (income) expense, net (which is comprised of the (gain) or loss on disposal of long-lived assets and interest on trade accounts receivable) and provision (benefit) for income taxes, further adjusted to add back interest on trade accounts receivable. The Company excludes the items listed above from net income (loss) in arriving at Adjusted EBITDA because these amounts can vary substantially from company to company within the energy service 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 (loss) or cash flows from operating activities as determined in accordance with GAAP or as an indicator of Mammoth’s operating performance or liquidity. Certain items excluded from Adjusted EBITDA are significant components in understanding and assessing a company’s financial performance, such as a company’s cost of capital and tax structure, as well as the historic costs of depreciable assets. Mammoth’s computations of Adjusted EBITDA may not be comparable to other similarly titled measures of other companies. The Company believes that Adjusted EBITDA is a widely followed measure of operating performance and may also be used by investors to measure its ability to meet debt service requirements.

The following tables provide a reconciliation of Adjusted EBITDA to the GAAP financial measure of net income (loss) on a consolidated basis and for each of the Company’s segments (in thousands):

Consolidated
Three Months EndedYears Ended
December 31,September 30,December 31,
Reconciliation of Adjusted EBITDA to net loss:20212020202120212020
Net loss$(13,297)$(11,861)$(40,901)$(101,430)$(107,607)
Depreciation, depletion, amortization and accretion expense17,916 22,187 19,148 78,475 95,317 
Impairment of goodwill891 — — 891 54,973 
Impairment of other long-lived assets665 — 547 1,212 12,897 
Public offering costs— — 13 91 — 
Stock based compensation242 354 252 1,191 1,952 
Interest expense, net2,528 1,191 1,484 6,406 5,397 
Other (income) expense, net(4,813)(9,218)(11,056)(10,301)(34,938)
Provision (benefit) for income taxes3,507 (3,190)(7,187)(22,863)(12,169)
Interest on trade accounts receivable9,571 8,077 7,963 34,709 34,130 
Adjusted EBITDA$17,210 $7,540 $(29,737)$(11,619)$49,952 

11

MAMMOTH ENERGY SERVICES, INC.
RECONCILIATION OF NON-GAAP FINANCIAL MEASURES

Infrastructure Services
Three Months EndedYears Ended
December 31,September 30,December 31,
Reconciliation of Adjusted EBITDA to net (loss) income:20212020202120212020
Net (loss) income$(5,992)$5,950 $(2,410)$(36,711)$(928)
Depreciation and amortization expense4,380 6,957 4,933 21,880 29,373 
Impairment of goodwill891 — — 891 — 
Impairment of other long-lived assets665 — — 665 — 
Public offering costs— — (7)39 — 
Stock based compensation100 156 96 500 580 
Interest expense1,613 691 971 3,925 2,794 
Other income, net(4,131)(8,355)(9,256)(6,785)(32,437)
Provision for income taxes3,175 2,048 3,947 712 7,133 
Interest on trade accounts receivable9,571 8,418 9,290 36,551 32,214 
Adjusted EBITDA$10,272 $15,865 $7,564 $21,667 $38,729 

Well Completion Services
Three Months EndedYears Ended
December 31,September 30,December 31,
Reconciliation of Adjusted EBITDA to net loss:20212020202120212020
Net loss$(4,659)$(18,123)$(40,711)$(58,051)$(69,073)
Depreciation and amortization expense6,709 7,066 6,538 26,377 30,411 
Impairment of goodwill— — — — 53,406 
Impairment of other long-lived assets— — — — 4,203 
Public offering costs— — 19 31 — 
Stock based compensation80 70 95 333 527 
Interest expense419 273 215 1,107 1,130 
Other (income) expense, net(121)170 755 1,073 (2,274)
Interest on trade accounts receivable— (318)(1,327)(1,841)1,888 
Adjusted EBITDA$2,428 $(10,862)$(34,416)$(30,971)$20,218 

Natural Sand Proppant Services
Three Months EndedYears Ended
December 31,September 30,December 31,
Reconciliation of Adjusted EBITDA to net income (loss):20212020202120212020
Net income (loss)$2,858 $1,092 $(4,611)$(6,328)$(11,324)
Depreciation, depletion, amortization and accretion expense1,946 2,390 2,533 9,005 9,771 
Public offering costs— — — 12 — 
Stock based compensation39 70 32 202 425 
Interest expense183 95 107 474 312 
Other expense (income), net18 86 (46)(874)1,839 
Interest on trade accounts receivable— (23)— (1)
Adjusted EBITDA$5,044 $3,710 $(1,985)$2,490 $1,026 

12

MAMMOTH ENERGY SERVICES, INC.
RECONCILIATION OF NON-GAAP FINANCIAL MEASURES

Drilling Services
Three Months EndedYears Ended
December 31,September 30,December 31,
Reconciliation of Adjusted EBITDA to net loss:20212020202120212020
Net loss$(2,590)$(3,187)$(2,579)$(11,307)$(16,865)
Depreciation expense1,812 2,224 1,942 7,996 10,039 
Impairment of other long-lived assets— — — — 326 
Public offering costs— — — — 
Stock based compensation36 76 203 
Interest expense116 56 293 454 
Other expense (income), net23 23 (66)(177)(227)
Adjusted EBITDA$(634)$(899)$(641)$(3,117)$(6,070)

Other Services(a)
Three Months EndedYears Ended
December 31,September 30,December 31,
Reconciliation of Adjusted EBITDA to net (loss) income:20212020202120212020
Net (loss) income$(2,915)$2,407 $9,410 $10,967 $(9,417)
Depreciation, amortization and accretion expense3,069 3,550 3,202 13,217 15,722 
Impairment of goodwill— — — — 1,567 
Impairment of other long-lived assets— — 547 547 8,368 
Public offering costs— — — 
Stock based compensation18 22 23 80 217 
Interest expense, net197 127 135 607 707 
Other income, net(602)(1,142)(2,443)(3,538)(1,839)
Provision (benefit) for income taxes332 (5,238)(11,134)(23,575)(19,302)
Interest on trade accounts receivable— — — — 25 
Adjusted EBITDA$99 $(274)$(259)$(1,688)$(3,952)
a.    Includes results for Mammoth’s aviation, coil tubing, pressure control, equipment rentals, crude oil hauling, full-service transportation and remote accommodations and equipment manufacturing and corporate related activities. The Company’s corporate related activities do not generate revenue.

13

MAMMOTH ENERGY SERVICES, INC.
RECONCILIATION OF NON-GAAP FINANCIAL MEASURES

Adjusted Net Loss and Adjusted Loss per Share

Adjusted net loss and adjusted basic and diluted loss per share are supplemental non-GAAP financial measures that are used by management to evaluate the Company’s operating and financial performance. Management believes these measures provide meaningful information about the Company’s performance by excluding certain non-cash charges, such as impairment of goodwill and impairment of other long-lived assets, that may not be indicative of the Company’s ongoing operating results. Adjusted net loss and adjusted loss per share should not be considered in isolation or as a substitute for net loss and loss per share prepared in accordance with GAAP and may not be comparable to other similarly titled measures of other companies. The following tables provide a reconciliation of adjusted net loss and adjusted loss per share to the GAAP financial measures of net loss and loss per share for the periods specified.
Three Months EndedYears Ended
December 31,September 30,December 31,
20212020202120212020
(in thousands, except per share amounts)
Net loss, as reported$(13,297)$(11,861)$(40,901)$(101,430)$(107,607)
Impairment of goodwill891 — — 891 54,973 
Impairment of other long-lived assets665 — 547 1,212 12,897 
Adjusted net loss$(11,741)$(11,861)$(40,354)$(99,327)$(39,737)
Basic loss per share, as reported$(0.28)$(0.26)$(0.88)$(2.18)$(2.36)
Impairment of goodwill0.02 — — 0.02 1.20 
Impairment of other long-lived assets0.01 — 0.01 0.03 0.28 
Adjusted basic loss per share$(0.25)$(0.26)$(0.87)$(2.13)$(0.88)
Diluted loss per share, as reported$(0.28)$(0.26)$(0.88)$(2.18)$(2.36)
Impairment of goodwill0.02 — — 0.02 1.20 
Impairment of other long-lived assets0.01 — 0.01 0.03 0.28 
Adjusted diluted loss per share$(0.25)$(0.26)$(0.87)$(2.13)$(0.88)

14