MAMMOTH ENERGY SERVICES, INC.

For the period ended Sep 30, 2025. Filed Nov 3, 2025.

About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2025 · Filed Nov 3, 2025

TUSK$3.27+6.9%Stored close · as of Nov 10, 2026

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Contents

Condensed Consolidated Statements of Cash Flows

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (CONTINUED)

	Nine Months Ended September 30,
	2025	2024
(in thousands)
Cash flows from operating activities:
Net loss	$(4,304)	$(191,846)
Less: Net income (loss) from discontinued operations, net of income taxes	45,023	(20,258)
Net loss from continuing operations	(49,327)	(171,588)
Adjustments to reconcile net loss from continuing operations to net cash (used in) provided by operating activities:
Stock based compensation	412	657
Depreciation, depletion, amortization and accretion	7,679	9,350
Amortization of debt origination costs	531	1,076
Change in provision for expected credit losses	37	170,731
Gains on disposal of assets, net	(2,675)	(1,637)
Gains from sales of equipment damaged or lost down-hole	(217)	(160)
Impairment of long-lived assets	31,669	—
Deferred income taxes	(480)	3,488
Other	568	724
Changes in assets and liabilities:
Accounts receivable, net	2,170	38,452
Inventories	(70)	(277)
Other assets	6,792	9,441
Accounts payable	(1,331)	3,550
Accrued expenses and other liabilities	(8,780)	(11,796)
Accrued expenses and other liabilities - related parties	—	4,647
Income taxes payable	2,066	(16,809)
Net cash (used in) provided by operating activities from continuing operations	(10,956)	39,849
Net cash provided by (used in) operating activities from discontinued operations	1,873	(548)
Net cash (used in) provided by operating activities	(9,083)	39,301
Cash flows from investing activities:
Purchases of property, plant and equipment	(44,624)	(1,065)
Proceeds from disposal of property, plant and equipment	5,465	3,881
Purchases of marketable securities	(12,660)	—
Net cash (used in) provided by investing activities from continuing operations	(51,819)	2,816
Net cash provided by (used in) investing activities from discontinued operations	110,412	(8,736)
Net cash provided by (used in) investing activities	58,593	(5,920)
Cash flows from financing activities:
Payments on financing transaction	—	(46,837)
Principal payments on financing leases and equipment financing notes	(384)	(347)
Debt issuance costs	—	(37)
Net cash used in financing activities from continuing operations	(384)	(47,221)
Net cash used in financing activities from discontinued operations	(3,838)	(4,262)
Net cash used in financing activities	(4,222)	(51,483)
Effect of foreign exchange rate on cash	73	(31)
Net increase (decrease) in cash, cash equivalents and restricted cash	45,361	(18,133)
Cash, cash equivalents and restricted cash at beginning of period	82,326	24,298
Cash, cash equivalents and restricted cash at end of period	127,687	6,165
Less: Cash, cash equivalents and restricted cash of discontinued operations at end of period	59	2,098
Cash, cash equivalents and restricted cash of continuing operations	$127,628	$4,067

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (CONTINUED)

	Nine Months Ended September 30,
	2025	2024
(in thousands)
Supplemental disclosure of cash flow information:
Cash paid for interest	$566	$717
Cash paid for income taxes, net of refunds received	$626	$643
Supplemental disclosure of non-cash transactions:
Interest paid in kind - related parties	$—	$5,888
Purchases of property, plant and equipment included in accounts payable and accrued expenses	$218	$229
Right-of-use assets obtained for financing lease liabilities	$27	$150

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