Top Interior petroleum refineries contractors
In the 12 months ending Oct 5, 2026, the Department of the Interior obligated $6.5M in net prime contract dollars under NAICS 324110, down 15.9% from $7.7M in the preceding 12 months. 57 prime contractors received positive obligations, and 20 of them accounted for 80% of that spend.
Prime contracts funded by the Department of the Interior. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top Interior contractors for NAICS 324110
Ranked by positive obligations in the latest 12 months. Share is of all positive obligations in this market.
| # | Contractor | Latest 12 mo | Prior 12 mo | Share | Rank change |
|---|---|---|---|---|---|
| 1 | Amerigas Propane, L.P. | $1.0M | $894K | 14.3% | ▲ 1 |
| 2 | AMG Company, Inc. | $474K | $260K | 6.5% | ▲ 7 |
| 3 | Alcatraz Island Services LLC | $383K | $82K | 5.3% | ▲ 19 |
| 4 | TSR Solutions LLC | $375K | $106K | 5.2% | ▲ 16 |
| 5 | GP Energy Company LLC | $363K | $21K | 5.0% | ▲ 47 |
| 6 | Red River Resources LLC | $348K | $1.0M | 4.8% | ▼ 5 |
| 7 | DT-Trak Consulting, Inc. | $314K | $569K | 4.3% | ▼ 4 |
| 8 | Austin R Harris | $300K | $27K | 4.1% | ▲ 39 |
| 9 | Crowley Fuels LLC | $292K | $236K | 4.0% | ▲ 1 |
| 10 | Everts Air Fuel, Inc | $273K | $339K | 3.8% | ▼ 3 |
| 11 | Silverback Associates LLC | $271K | $341K | 3.7% | ▼ 5 |
| 12 | Cherokee Services, LLC | $246K | $168K | 3.4% | ▲ 4 |
| 13 | Alcatraz Services Opco LLC | $195K | $29K | 2.7% | ▲ 31 |
| 14 | MEC Services LLC | $180K | $205K | 2.5% | ▼ 2 |
| 15 | Chases Foothill Petroleum | $161K | $48K | 2.2% | ▲ 18 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- GP Energy Company LLC$21K → $363K (+$342K) · now #5
- Alcatraz Island Services LLC$82K → $383K (+$301K) · now #3
- Austin R Harris$27K → $300K (+$273K) · now #8
Largest declines
- Red River Resources LLC$1.0M → $348K (−$658K) · now #6
- Sanford Federal, Inc.$200K → −$343K (−$543K) · no latest-period obligations
- Nations GAS Technologies Inc$477K → $34K (−$443K) · now #41
New to this market
10 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Sage Resourcing, LLC | Sep 16, 2026 | $153K |
| Christopher I. Oyolokor SR. | Sep 16, 2026 | $143K |
| High Vibrational Industries LLC | Feb 19, 2026 | $96K |
| WE Build LLC | Sep 3, 2026 | $48K |
| Ragged Rose, LLC | May 14, 2026 | $44K |
| Vitus Marine LLC | Jun 8, 2026 | $39K |
| Coleman OIL Company, LLC | Jul 20, 2026 | $35K |
| Mannon Mechanical LLC | Jan 30, 2026 | $27K |
Where the money comes from
Funding sub-agencies within the Department of the Interior, latest 12 months. The funding organization can differ from the office that runs the requirement.
| Funding sub-agency | Latest 12 mo | Prior 12 mo | Change |
|---|---|---|---|
| Bureau of Indian Affairs and Bureau of Indian Education | $2.6M | $3.4M | Down $830K (24.2%) |
| National Park Service | $2.5M | $2.5M | Up $4K (0.1%) |
| U.S. Fish and Wildlife Service | $1.0M | $813K | Up $211K (26.0%) |
| Bureau of Reclamation | $192K | $130K | Up $61K (47.0%) |
| U.S. Geological Survey | $177K | $242K | Down $65K (26.8%) |
Common questions
Who are the top Interior contractors for NAICS 324110?
In the latest 12 months, Amerigas Propane, L.P. ($1.0M), AMG Company, Inc. ($474K), Alcatraz Island Services LLC ($383K) received the most Interior obligations for petroleum refineries.
How concentrated is this market?
The eight largest primes held 49.5% of positive obligations, and Amerigas Propane, L.P. alone held 14.3%. 10 contractors won their first obligations in this market during the latest 12 months.
Related markets
NAICS 324110 across all agencies
DoD · NAICS 324110
$8.6BUSDA · NAICS 324110
$14.7MState Department · NAICS 324110
$11.6MFigures are net obligations on prime contracts (award types A–D) from USAspending.gov, grouped by funding agency and the NAICS code on each award. Net obligations include deobligations and corrections, so they can differ from positive-obligation totals. See methodology.
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