← Companies
MAMMOTH ENERGY SERVICES, INC.
Data as of Oct 16, 2026
Lobbying
$600,000 in reported federal lobbying spend across 8 quarterly filings, most recently Jul 20, 2026. Amounts are the sums companies and their registrants report on Lobbying Disclosure Act filings; a filing that covers several issues counts its full amount under each.
Spend by issue
- Energy/Nuclear$550K6 filings
- Disaster Planning/Emergencies$50K1 filing
Latest filings, Apr 2025 onward
| Filed | Registrant and subject | Amount |
|---|---|---|
| Jul 20, 2026 | BLACK DIAMOND STRATEGIES LLC for MAMMOTH ENERGY SERVICES INC Energy/Nuclear Educate Congress on municipal taxation issue | $120,000 |
| Apr 20, 2026 | BLACK DIAMOND STRATEGIES LLC for MAMMOTH ENERGY SERVICES INC Energy/Nuclear Educate Congress on municipal taxation issue | $120,000 |
| Jan 15, 2026 | BLACK DIAMOND STRATEGIES LLC for MAMMOTH ENERGY SERVICES INC Energy/Nuclear Educate Congress on municipal taxation issue | $120,000 |
| Oct 16, 2025 | BLACK DIAMOND STRATEGIES LLC for MAMMOTH ENERGY SERVICES INC Energy/Nuclear Educate Congress on municipal taxation issue | $80,000 |
| Jul 21, 2025 | BLACK DIAMOND STRATEGIES LLC for MAMMOTH ENERGY SERVICES INC Unspecified | $0 |
| Apr 16, 2025 | BLACK DIAMOND STRATEGIES LLC for MAMMOTH ENERGY SERVICES INC Energy/Nuclear Funds owed to Mammoth by Puerto Rico Electric Power Authority | $0 |