Appointed
Paul Jacobi
Chief Business Officer
TUSK ·
MAMMOTH ENERGY SERVICES, INC.
the Board named Paul Jacobi as the Company's Chief Business Officer effective July 1, 2025.
TUSK
MAMMOTH ENERGY SERVICES, INC.
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Ready 8-Ks
11
Latest filing
May 15, 2026 12:29 UTC
Top materiality
0.85
Event mix
earnings ×4 · m_and_a ×2 · leadership ×2
Sentiment
2 pos · 2 neg · 7 neu
Latest earnings
reported 2026-Q1
Executive change
recent →
Recent 8-K filings for TUSK
Highest-materiality recent filing
Mammoth sells hydraulic fracturing equipment for $15M; expects $7.7M-$9.2M impairment
- Sold all hydraulic fracturing equipment to MGB Manufacturing for $15M cash; closed June 16, 2025.
- Expects Q2 2025 goodwill impairment of $7.7M-$9.2M on carrying value exceeding fair value.
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Mammoth Energy Services replaces auditor Deloitte with Carr, Riggs & Ingram
Dismissed Deloitte & Touche as independent auditor effective May 13, 2026.
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Mammoth Energy Q1 revenue doubles to $22M, net income $4.7M; raises 2026 EBITDA outlook
Revenue from continuing ops $22.0M (up 90% YoY from $11.6M); net income $4.7M ($0.10 diluted) vs net loss $2.2M in Q1 2025.
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Mammoth Energy Q4 revenue $9.5M, net loss $12.3M; full-year loss narrows to $63.8M
Revenue from continuing ops $9.5M in Q4 2025 vs $10.0M Q4 2024; full-year $44.3M vs $45.6M.
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Mammoth Energy sells Aquawolf engineering unit to Qualus for $30M; net cash $23.5M
Sale price $30.0M; closing cash proceeds $23.5M, $2.5M escrow for post-closing adjustments and indemnities.
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Mammoth Energy Q3 revenue $14.8M, net loss $0.25/share; completed Piranha divestiture
Revenue $14.8M (down 13% YoY from $17.1M); net loss $12.1M ($0.25/share) vs $8.9M loss ($0.18) in Q3 2024.
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Mammoth Energy Q2 2025 net loss $35.7M; sells infrastructure units for $108.7M
Total revenue from continuing ops $16.4M (vs $16.0M YoY); net loss $35.7M ($0.74/diluted) vs $155.6M loss YoY.
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Mammoth Energy cuts revolver to $50M; appoints Bernard Lancaster COO
Revolving loan commitments reduced from $75M to $50M effective July 2, 2025.
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Mammoth Energy appoints departing CEO Phil Lancaster to board; chairman Amron deemed independent
Phil Lancaster appointed as non-independent board member effective July 1, 2025, after CEO resignation.
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Mammoth sells hydraulic fracturing equipment for $15M; expects $7.7M-$9.2M impairment
Sold all hydraulic fracturing equipment to MGB Manufacturing for $15M cash; closed June 16, 2025.
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Mammoth Energy shareholders elect four directors, approve say-on-pay, ratify auditor
Shareholders elect Arthur Amron, Corey Booker, Paul Jacobi, and James Palm to board until 2026 annual meeting.
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Mammoth Energy CEO Phil Lancaster resigns; son Bernard named COO; board changes
CEO Phil Lancaster resigns effective June 30, 2025; will become non-voting board observer June 11.
Executive changes
Appointed
Bernard Lancaster
Chief Operating Officer and Principal Executive Officer
TUSK ·
MAMMOTH ENERGY SERVICES, INC.
the Board named Bernard Lancaster as Chief Operating Officer and Principal Executive Officer of the Company effective July 1, 2025.
Departed
Arthur Smith
Director
TUSK ·
MAMMOTH ENERGY SERVICES, INC.
Arthur Smith, who has served as a director of the Company since the Company's initial public offering, will not stand for re-election at the Company's 2025 Annual Meeting of Stockholders on June 11, 2025 (the "2025 Annual Meeting"), and will retire as a director, chairman of the audit committee and member of the compensation committee and nominating and corporate governance committee, effective as of the date of the 2025 Annual Meeting.
Departed
Phil Lancaster
Chief Executive Officer
TUSK ·
MAMMOTH ENERGY SERVICES, INC.
Mr. P. Lancaster has resigned from his CEO with Mammoth effective as of June 30, 2025.
Earnings & guidance
Materiality & sentiment trend
Max materiality 0.85 · Median 0.65 · Most common event earnings