NAICS Code 33313: Mining and Oil and Gas Field Machinery Manufacturing
NAICS industry
Definition
This industry comprises establishments primarily engaged in manufacturing oil and gas field and underground mining machinery and equipment.
Government contracts for this product: PSC 3820 Mining, Rock Drilling, Earth Boring, and Related Equipment
Code facts
- Part of
-
-
31-33
-
333
- 3331
-
333
-
31-33
- Codes under it
- 2
- Contract awards
- 38 In the last 12 months
- Contract obligations
- $2,753,333 In FY2025
NAICS codes and definitions come from the U.S. Census Bureau, size standards from the SBA and contract spending from SAM.gov/FPDS.
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $1,957,061 |
| FY2025 | $2,753,333 |
| FY2024 | $3,351,554 |
| FY2023 | $8,707,155 |
Top contractors by obligations
| Rank | Contractor | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Sepor, Inc. | $295,070 | |
| 2 | Arhab LLC | $275,000 | |
| 3 | DCI Corporation | $228,000 | |
| 4 | Heesong Geotek Co., LTD. | $217,279 | |
| 5 | MDM Mac Enterprises Inc. | $160,948 | |
| 6 | Oil States Industries, Inc. | $90,839 | |
| 7 | Cryo Associates Inc. | $87,010 | |
| 8 | Geotechnical Consulting & Testing Systems, L.L.C. | $76,835 | |
| 9 | Dejana Truck & Utility Equipment Co, LLC | $66,720 | |
| 10 | Golden Lines Contracting Company | $58,400 |
See the full FY2025 ranking of NAICS 33313 contractors, by parent company.
Top funding agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Army | $595,287 | |
| 2 | Department of Energy | $523,070 | |
| 3 | Department of State | $275,137 | |
| 4 | Department of the Navy | $186,528 | |
| 5 | Defense Logistics Agency | $142,656 | |
| 6 | Department of the Interior | $127,844 | |
| 7 | Department of Health and Human Services | $106,540 |
Top PSC codes by obligations
| Rank | PSC code | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | 3820 Mining, Rock Drilling, Earth Boring, and Related Equipment | $603,088 | |
| 2 | 6640 Laboratory Equipment and Supplies | $304,835 | |
| 3 | 3417 Milling Machines | $295,070 | |
| 4 | 3895 Miscellaneous Construction Equipment | $275,000 | |
| 5 | 9140 Fuel Oils | $227,076 | |
| 6 | 2090 Miscellaneous Ship and Marine Equipment | $90,839 | |
| 7 | 3655 Gas Generating and Dispensing Systems, Fixed or Mobile | $87,010 | |
| 8 | 3805 Earth Moving and Excavating Equipment | $34,664 | |
| 9 | 9150 Oils and Greases: Cutting, Lubricating, and Hydraulic | $24,773 | |
| 10 | 9130 Liquid Propellants and Fuels, Petroleum Base | $15,478 |
Contract obligations by state
| Rank | Place of performance | Obligated, last 12 months | Share |
|---|---|---|---|
| 1 | Oregon | $295,070 | |
| 2 | Connecticut | $275,000 | |
| 3 | Utah | $228,000 | |
| 4 | North Carolina | $160,948 | |
| 5 | Texas | $90,839 | |
| 6 | Maryland | $87,010 | |
| 7 | Arizona | $76,835 | |
| 8 | Pennsylvania | $34,369 | |
| 9 | Georgia | $32,891 | |
| 10 | Michigan | $29,640 | |
| 11 | Virginia | $8,680 | |
| 12 | Illinois | $8,560 | |
| 13 | Massachusetts | $6,549 | |
| 14 | Indiana | $172 | |
| 15 | Kentucky | $45 |
Show all 15
Shares are of everything obligated under NAICS 33313 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.
Contract opportunities
Show 40 more
Latest 50 of 608 listed here. See the rest on GovTribe.
Codes under 33313
| NAICS code | Size standard |
|---|---|
| 333131 Mining Machinery and Equipment Manufacturing | 900 employees |
| 333132 Oil and Gas Field Machinery and Equipment Manufacturing | 1,250 employees |
Quick answers
What is NAICS 33313?
NAICS 33313 is Mining and Oil and Gas Field Machinery Manufacturing, a NAICS industry in NAICS 31-33, Manufacturing.
What codes are under NAICS 33313?
NAICS 33313 has 2 codes under it with their own GovTribe pages: 333131 Mining Machinery and Equipment Manufacturing and 333132 Oil and Gas Field Machinery and Equipment Manufacturing.
How much do federal agencies spend under NAICS 33313?
Federal contracts under NAICS 33313 obligated $2,753,333 in fiscal year 2025 and $16,769,104 in fiscal years 2023 through 2027.
Who are the largest contractors under NAICS 33313?
The contractors with the most obligated under NAICS 33313 in fiscal years 2026 and 2027 are Sepor, Inc. ($295,070); Arhab LLC ($275,000); and DCI Corporation ($228,000).
Which agencies buy the most under NAICS 33313?
The agencies that obligated the most under NAICS 33313 in fiscal years 2026 and 2027 are Department of the Army ($595,287), Department of Energy ($523,070) and Department of State ($275,137).
Which PSC codes are used with NAICS 33313?
The PSC codes with the most obligated under NAICS 33313 in fiscal years 2026 and 2027 are 3820 Mining, Rock Drilling, Earth Boring, and Related Equipment; 6640 Laboratory Equipment and Supplies; and 3417 Milling Machines.
Where is the work under NAICS 33313 performed?
By place of performance, the states with the most contract obligations under NAICS 33313 over the last 12 months are Oregon ($295,070), Connecticut ($275,000) and Utah ($228,000).
What is the latest contract opportunity under NAICS 33313?
The latest contract opportunity under NAICS 33313 is 554 RHS 50 K Water Well Drilling System (Deployable), award notice from Pacific Air Forces (USAF), posted October 2, 2026.
On GovTribe
See everything under NAICS 33313
- Federal contract opportunities, awards and IDVs under this code
- Funding analysis by contractor, agency and set-aside
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- Ask GovTribe AI about this code