Top 32 Contractors in NAICS 213112: Support Activities for Oil and Gas Operations, Aug 2025–Jul 2026

Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe

The latest 12 months. See the newest fiscal year's list: Top Contractors in NAICS 213112: Support Activities for Oil and Gas Operations, FY2025.

The top 10 won 94% of NAICS 213112 contract dollars from August 2025 through July 2026

Ranking facts

Contract obligations
$63,447,470 Net of deobligations, by contracts coded NAICS 213112
Contractors
35 Parent companies with an obligation
Largest contractor
Promethean Operating I LLC $32.1 million, 49.5% of obligations
Data as of

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 32 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank Contractor Net obligations Share Trend
1 $32,122,156
Rank history: not on the FY2021–FY2023 lists, #3 in FY2024 and #1 in FY2025; up 2 since Aug 2024–Jul 2025.
2 $9,505,301
Rank history: #1 in FY2021, #4 in FY2022, not on the FY2023–FY2024 lists and #2 in FY2025; new, not ranked in Aug 2024–Jul 2025.
3
Olgoonik Oilfield Services LLC
$7,817,591
Rank history: not on the FY2021 list, #3 in FY2022, #6 in FY2023, #1 in FY2024 and #7 in FY2025; up 4 since Aug 2024–Jul 2025.
4 $3,522,142
Rank history: not on the FY2021–FY2023 lists, #4 in FY2024 and #6 in FY2025; down 2 since Aug 2024–Jul 2025.
5 $2,457,448
Rank history: not on the FY2021–FY2022 lists, #16 in FY2023, #10 in FY2024 and #3 in FY2025; new, not ranked in Aug 2024–Jul 2025.
6 $2,012,251
Rank history: not on the FY2021 list, #6 in FY2022, #3 in FY2023, #5 in FY2024 and #5 in FY2025; down 1 since Aug 2024–Jul 2025.
7 $1,590,562
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
8 $705,910
Rank history: #12 in FY2021, #13 in FY2022, #29 in FY2023, #8 in FY2024 and #8 in FY2025; new, not ranked in Aug 2024–Jul 2025.
9 $627,609
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
10 $559,144
Rank history: not on the FY2021–FY2024 lists and #9 in FY2025; new, not ranked in Aug 2024–Jul 2025.
11 $533,400
Rank history: not on the FY2021–FY2024 lists and #10 in FY2025; new, not ranked in Aug 2024–Jul 2025.
12
A2D Technologies, Inc.
$341,376
Rank history: not on the FY2021–FY2023 lists, #14 in FY2024 and #11 in FY2025; down 4 since Aug 2024–Jul 2025.
13 $337,665
Rank history: not on the FY2021–FY2023 lists, #15 in FY2024 and not on the FY2025 list; down 4 since Aug 2024–Jul 2025.
14 $311,220
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
15
Spees-Hernandez JV LLC Through Spees LLC
$116,985
Rank history: not on the FY2021–FY2022 lists, #14 in FY2023, #24 in FY2024 and #18 in FY2025; new, not ranked in Aug 2024–Jul 2025.
16 $115,660
Rank history: #13 in FY2021, #14 in FY2022, #11 in FY2023, #19 in FY2024 and #14 in FY2025; down 3 since Aug 2024–Jul 2025.
17 $109,998
Rank history: not on the FY2021–FY2024 lists and #20 in FY2025; up 7 since Aug 2024–Jul 2025.
18
Siemens Industry Inc.
$86,602
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
19 $86,000
Rank history: not on the FY2021–FY2023 lists, #21 in FY2024 and #15 in FY2025; down 4 since Aug 2024–Jul 2025.
20 $81,287
Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; new, not ranked in Aug 2024–Jul 2025.
21 $65,297
Rank history: #7 in FY2021, not on the FY2022 list, #18 in FY2023, #34 in FY2024 and #21 in FY2025; up 6 since Aug 2024–Jul 2025.
22 $48,000
Rank history: not on the FY2021–FY2022 lists, #23 in FY2023, #29 in FY2024 and #25 in FY2025; down 3 since Aug 2024–Jul 2025.
23 $43,533
Rank history: #24 in FY2021, #36 in FY2022, #21 in FY2023, #42 in FY2024 and #29 in FY2025; new, not ranked in Aug 2024–Jul 2025.
24 $42,795
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
25 $38,944
Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; down 2 since Aug 2024–Jul 2025.
26 $35,496
Rank history: not on the FY2021–FY2024 lists and #26 in FY2025; new, not ranked in Aug 2024–Jul 2025.
27 $14,250
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
28 $11,355
Rank history: #48 in FY2021, #35 in FY2022, #42 in FY2023, #39 in FY2024 and #22 in FY2025; down 8 since Aug 2024–Jul 2025.
29 $9,924
Rank history: not on the FY2021 list, #28 in FY2022, not on the FY2023 list, #35 in FY2024 and #28 in FY2025; down 3 since Aug 2024–Jul 2025.
30 $8,500
Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
31 $7,500
Rank history: not on the FY2021 list, #41 in FY2022, #45 in FY2023, not on the FY2024 list and #41 in FY2025; up 13 since Aug 2024–Jul 2025.
32 $6,174
Rank history: #37 in FY2021, #39 in FY2022, #38 in FY2023, #50 in FY2024 and #37 in FY2025; up 1 since Aug 2024–Jul 2025.
Show 7 more

32 of 35 contractors listed here. See the rest on GovTribe.

How this ranking works

  • Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
  • Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $64.9 million obligated before deobligations, so they never pass 100%.
  • Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
  • Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
  • Rank changes compare with Aug 2024–Jul 2025. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
  • Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list.
  • Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

Quick answers

Who were the top 10 NAICS 213112 contractors in Aug 2025–Jul 2026?

1. Promethean Operating I LLC ($32.1M), 2. Arctic Slope Regional Corporation ($9.51M), 3. Olgoonik Oilfield Services LLC ($7.82M), 4. Chet Morrison Contractors LLC ($3.52M), 5. Olgoonik Corporation ($2.46M), 6. Jordan Modern Oil & Fuel Services Ltd. Co. ($2.01M), 7. Calista Corp ($1.59M), 8. E2 Contracting, Inc. ($706K), 9. Parliament LLC ($628K), 10. Bristol Bay Native Corporation ($559K).

On GovTribe

Research every contractor on this list

  • Every contract, task order and IDV they hold
  • Their subsidiaries, teammates and competitors
  • Open opportunities they're positioned for
  • Alerts when they win new work