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Companies / Materials / MAMMOTH ENERGY SERVICES, INC.
TUSK

MAMMOTH ENERGY SERVICES, INC.

MaterialsMining
Ticker TUSKOKLAHOMA CITY, OKFiscal year ends DecemberBook value per share $5.44Diluted shares 48.2M

Mammoth Energy Services Inc. (NASDAQ: TUSK) is an integrated services company providing specialized products and services to the oil and natural gas, aviation, and utility infrastructure industries. The company operates through five reportable segments: rental services, infrastructure services, natural sand proppant… From the company’s description.

Fiscal year 2025 · ends 12-31Changes are against fiscal 2024The amber dot is the latest twelve months, to 2026-06-30
Sales & profitability
$44.29M
−76.4% year over year
Last 12 mo $60.38M
-129.67%
−61.2 percentage points
Last 12 mo -31.06%
$-63.76M
+69.2% year over year
Last 12 mo $-23.00M
14.21%
+96.2 percentage points
Last 12 mo 0.27%
Cash & financing
$-18.57M
−110.3% year over year
Last 12 mo $-18.78M
$-89.12M
−154.5% year over year
Last 12 mo $-117.68M
—
Was 0.00× a year earlier
48.3M
+0.4% year over year
Last 12 mo 48.2M

Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.

What MAMMOTH ENERGY SERVICES, INC. does

In the company’s own words

Mammoth Energy Services Inc. (NASDAQ: TUSK) is an integrated services company providing specialized products and services to the oil and natural gas, aviation, and utility infrastructure industries. The company operates through five reportable segments: rental services, infrastructure services, natural sand proppant services, accommodation services, and drilling services.

The rental services segment provides equipment used in drilling, flowback, and hydraulic fracturing operations, including cranes, light plants, and generators across West Texas, Eastern Ohio, Pennsylvania, and West Virginia. The aviation services division leases regional aircraft, helicopters, jet engines, and auxiliary power units to regional and cargo airlines. As of December 31, 2025, the company owned nine regional aircraft, two helicopters, five jet engines, and ten APUs.

The infrastructure services division offers engineering, design, construction, upgrade, maintenance, and repair services for fiber networks, primarily in the southwestern and midwestern United States. The natural sand proppant services segment mines and processes premium monocrystalline sand used in hydraulic fracturing operations, with primary operations in Jackson County, Wisconsin. The accommodation services business operates Sand Tiger Lodge in northern Alberta, Canada, providing housing and dining facilities for oilfield workers with a capacity of 764 rooms. The drilling services segment provides directional drilling services using mud motors and measurement-while-drilling technology across multiple basins including the Anadarko, Arkoma, Powder River, and Permian basins.

The company serves approximately 142 customers, with the top five customers accounting for approximately 55 percent of revenue. Mammoth maintains strategic geographic positioning across major unconventional resource plays including the Utica Shale, Marcellus Shale, SCOOP/STACK, and oil sands operations. The company website is www.mammothenergy.com. Following strategic divestitures completed in 2025, Mammoth has narrowed its operational focus to drive returns through improved asset utilization, margin expansion, and capital efficiency. As of December 31, 2025, the company maintained no outstanding debt and unrestricted cash of $102.0 million.

Company details
Sector
Materials
Industry
Mining
Headquarters
OKLAHOMA CITY, OK
Fiscal year end
December
CIK
1679268
SIC
1389

Financial performance, year by year

Fiscal 2016–2025 · USD
$-397.07M$172.16M$741.38M$1.31B$1.88B2016201720182019202020212022202320242025Last 12 moLast 12 monthsLast 12 months

The full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.

Ownership

Who owns MAMMOTH ENERGY SERVICES, INC. — and what changed

Funds as of 2026Q2 · superinvestors as of 2026-06-30

60
funds hold it
0 of 35
superinvestors hold it
$9.73M
held by funds, at market
6.5%
of shares held by funds

Largest fund holders · MAMMOTH ENERGY SERVICES, INC.’s weight in each

VANGUARD TOTAL STOCK MARKET INDEX FUND
VTI · VANGUARD INDEX FUNDS
0.00%of fund net assets
VANGUARD EXTENDED MARKET INDEX FUND
VXF · VANGUARD INDEX FUNDS
0.00%of fund net assets
0.03%of fund net assets
Fidelity Small Cap Index Fund
FSSNX · Fidelity Salem Street Trust
0.00%of fund net assets
Fidelity Extended Market Index Fund
FSMAX · Fidelity Concord Street Trust
0.00%of fund net assets

Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.

Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.

Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.

Connected research

Put this business in context.

Compare this company with peers, find it in your funds and follow its financial history with your connected AI:

  • “How do MAMMOTH ENERGY SERVICES, INC. and its peers compare on margins and cash generation over ten years?”
  • “Where did five years of MAMMOTH ENERGY SERVICES, INC.'s earnings go — cash, debt, buybacks, reinvestment?”
  • “What changed in MAMMOTH ENERGY SERVICES, INC.'s last four quarterly filings that the numbers alone won't show?”
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