Top DoD oil and gas pipeline and related structures construction contractors
In the 12 months ending Oct 5, 2026, the Department of Defense obligated $179.4M in net prime contract dollars under NAICS 237120, down 70.0% from $598.4M in the preceding 12 months. 47 prime contractors received positive obligations, and 7 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Defense. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
DoD publishes contract data to USAspending with a 90-day delay, so the most recent months understate DoD activity.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top DoD contractors for NAICS 237120
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 | Nova Group, Inc. | $58.6M | $40.8M | 32.5% | ▲ 5 |
| 2 | Goshawk, LLC | $40.3M | $8.5M | 22.4% | ▲ 16 |
| 3 | S & B Infrastructure Ltd | $12.9M | $12.6M | 7.2% | ▲ 11 |
| 4 | Chenega Reliable Services LLC | $11.0M | $17.3M | 6.1% | ▲ 5 |
| 5 | Dawson Enterprises, Inc. | $9.5M | $41.9M | 5.3% | — |
| 6 | Environmental Chemical Corporation | $8.0M | $54K | 4.4% | ▲ 60 |
| 7 | SES Energy Services LLC | $5.3M | $454K | 2.9% | ▲ 38 |
| 8 | Reliable Contracting Group, LLC | $5.1M | $70.1M | 2.8% | ▼ 6 |
| 9 | WSP USA Environment & Infrastructure Inc. | $5.1M | $46.1M | 2.8% | ▼ 5 |
| 10 | Silver Mountain Weston SB JV LLC | $4.9M | $6.0M | 2.8% | ▲ 11 |
| 11 | Red Point Construction, LLC | $2.9M | $9.2M | 1.6% | ▲ 6 |
| 12 | Tepa and Pond Constructors JV | $2.3M | $0 | 1.3% | New |
| 13 | Black Micro Corporation | $1.8M | $0 | 1.0% | New |
| 14 | Chenega Industrial Group, LLC | $1.6M | $0 | 0.9% | New |
| 15 | Korea Housing Management Co.,ltd | $1.5M | $4.0M | 0.8% | ▲ 12 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Goshawk, LLC$8.5M → $40.3M (+$31.8M) · now #2
- Nova Group, Inc.$40.8M → $58.6M (+$17.7M) · now #1
- Environmental Chemical Corporation$54K → $8.0M (+$7.9M) · now #6
Largest declines
- Weston Solutions Inc$92.8M → $508K (−$92.3M) · now #23
- Reliable Contracting Group, LLC$70.1M → $5.1M (−$65.0M) · now #8
- Absher Construction Co$47.3M → $117K (−$47.2M) · now #33
New to this market
4 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Tepa and Pond Constructors JV | Jul 2, 2026 | $2.3M |
| Cssg Inc | May 27, 2026 | $25K |
| Spatco Energy Solutions, LLC | May 22, 2026 | $9K |
| Ferguson Enterprises LLC | Jan 26, 2026 | $3K |
Where the money comes from
Funding sub-agencies within the Department of Defense, 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 |
|---|---|---|---|
| Department of the Army | $142.0M | $172.2M | Down $30.2M (17.5%) |
| Defense Logistics Agency | $30.6M | $209.1M | Down $178.5M (85.4%) |
| Department of the Navy | $5.8M | $205.6M | Down $199.7M (97.2%) |
| Department of the Air Force | $944K | $11.4M | Down $10.5M (91.7%) |
Potential recompetes
Large awards in this market whose current period of performance ends in the next 18 months. Treat these as research leads: options, extensions, and follow-on vehicles often change the timing.
| Award | Incumbent | Obligated | Current end |
|---|---|---|---|
| N3943022F4441 | Weston Solutions Inc CLEAN, INSPECT AND REPAIR TANK A-12 AND Y-4 | $22.2M | Nov 3, 2026 |
| W9128F24C0027 | Hcpa-Garco jv1 CONSTRUCT EMERGENCY POWER PLANT (EPP) - FUEL STORAGE FACILITY AT CAVALIER SPACE FORCE STATION, NORTH DAKOTA | $19.2M | Dec 19, 2026 |
| W912DW24C0019 | MEB General Contractors Inc FY24 CONSTRUCT POL COMPLEX, GREAT FALLS, AIR NATIONAL GUARD, MONTANA | $33.1M | Apr 11, 2027 |
| N4425524C6000 | Garco Construction, Inc. MCON P2002 CONSTRUCTION OF TANK FARM IMPROVEMENTS, FLCPS MANCHESTER, MANCHESTER, WASHINGTON | $51.7M | Jun 20, 2027 |
| W912HV24C0008 | Obayashi CMS JV DESC1803 CONSTRUCT BULK STORAGE TANKS PH1, MCAS IWAKUNI | $60.0M | Aug 26, 2027 |
| W912DQ25CA010 | MEB General Contractors Inc FLIGHTLINE FUELING FACILITY | $19.9M | Sep 25, 2027 |
| N4425525C0009 | Absher Construction Co P273 BULK FUEL HYDRANT SYSTEM, NAVAL AIR STATION WHIDBEY ISLAND, WA. | $47.4M | Oct 9, 2027 |
| N6247325F0387 | Nova Group, Inc. CONTRACT NUMBER: N62473-23-D-1414 P-407 AIRCRAFT REFUELING FACILITY ON MARINE CORPS MOUNTAIN WARFARE TRAINING CENTER, BRIDGEPORT, CALIFORNIA | $21.6M | Dec 10, 2027 |
| N3943024F4209 | WSP USA Environment & Infrastructure Inc. PERFORM CLEANING, INSPECTION, AND REPAIRS AS WELL AS IN-SERVICE INSPECTIONS OF POL TANKS AT DEFENSE FUEL SUPPORT POINT TSURUMI, JAPAN | $22.0M | Jan 24, 2028 |
| N3943024F4208 | WSP USA Environment & Infrastructure Inc. CLEAN, INSPECT AND REPAIR TANKS AT DFSP HAKOZAKI, JAPAN (HAK TANKS: 63, 64, 65, 117) | $26.8M | Mar 10, 2028 |
Common questions
Who are the top DoD contractors for NAICS 237120?
In the latest 12 months, Nova Group, Inc. ($58.6M), Goshawk, LLC ($40.3M), S & B Infrastructure Ltd ($12.9M) received the most DoD obligations for oil and gas pipeline and related structures construction.
How concentrated is this market?
The eight largest primes held 83.7% of positive obligations, and Nova Group, Inc. alone held 32.5%. 4 contractors won their first obligations in this market during the latest 12 months.
Are any large DoD NAICS 237120 contracts ending soon?
10 of the largest awards in this market reach their current end date in the next 18 months. The first is N3943022F4441 (Weston Solutions Inc, $22.2M obligated), ending Nov 3, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
Related markets
NAICS 237120 across all agencies
VA · NAICS 237120
$5.1MFigures 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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