MAMMOTH ENERGY SERVICES INC

Lobbying client · Oklahoma · filed 2025 to 2026

Energy and Infrastructure Management

$560,000 Reported spend

7 Filings counted

1 Outside firm hired

0 Bills named

Spend is reported income plus in-house expenses across 7 filings. Everything on this page comes from one LDA client record (208428), filed by the registrant listed below.

Who filed for this client 1

BLACK DIAMOND STRATEGIES LLC $560,000 Outside firm · 7 filings

Spend per registrant: fees an outside firm reported, or the costs the client reported for lobbying in-house. The rows add up to the total above.

Reported by year 2 years

2026 $360,000 3 filings
2025 $200,000 4 filings

Issues lobbied 1

Energy/Nuclear 6

The count is how many filings named that issue area. A filing reports one lump figure covering every issue on it, so the money above cannot be split between them.

Agencies and chambers lobbied 2

HOUSE OF REPRESENTATIVES 5
SENATE 5

Recent filings 7 total

Q3 report

BLACK DIAMOND STRATEGIES LLC

3rd Quarter 2026 (July 1 - Sep 30) · House · Senate · $120,000 income · posted Oct 20, 2026

View → Q2 report

BLACK DIAMOND STRATEGIES LLC

2nd Quarter 2026 (Apr 1 - June 30) · House · Senate · $120,000 income · posted Jul 20, 2026

View → Q1 report

BLACK DIAMOND STRATEGIES LLC

1st Quarter 2026 (Jan 1 - Mar 31) · House · Senate · $120,000 income · posted Apr 20, 2026

View → Q4 report

BLACK DIAMOND STRATEGIES LLC

4th Quarter 2025 (Oct 1 - Dec 31) · House · Senate · $120,000 income · posted Jan 15, 2026

View → Q3 report

BLACK DIAMOND STRATEGIES LLC

3rd Quarter 2025 (July 1 - Sep 30) · House · Senate · $80,000 income · posted Oct 16, 2025

View → Q2 reportNo activity

BLACK DIAMOND STRATEGIES LLC

2nd Quarter 2025 (Apr 1 - June 30) · posted Jul 21, 2025

View → Q1 report

BLACK DIAMOND STRATEGIES LLC

1st Quarter 2025 (Jan 1 - Mar 31) · posted Apr 16, 2025

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Filings through October 20, 2026, the newest posted date on this record. Source: federal Lobbying Disclosure Act filings, synced daily. Money is self-reported by the filer and often rounded. Lobbying is legal, disclosed activity.