Largest oil and gas field machinery companies
Every US-listed oil and gas field machinery company we cover — 16 of them — ranked by market capitalisation, with revenue and earnings taken from their SEC filings.
Combined market cap
$120.840 B
0.1% of all US-listed value
Companies
16
Ranked #85 of 152 industries
Average
$7.553 B
Mean market cap per company
| # | Name | Market cap | Close | Session | Country |
|---|---|---|---|---|---|
| 1 | Baker HughesBKR | $61.1B | $61.55 | -1.55% | United States |
| 2 | TechnipFMCFTI | $27.3B | $69.62 | +0.00% | United States |
| 3 | NOVNOV | $7.00B | $19.65 | -1.26% | United States |
| 4 | Weatherford InternationalWFRD | $6.22B | $86.82 | -2.41% | United States |
| 5 | CactusWHD | $5.44B | $67.90 | -0.93% | United States |
| 6 | Solaris Energy InfrastructureSEI | $4.26B | $57.96 | +1.67% | United States |
| 7 | DnowDNOW | $3.02B | $16.52 | +7.34% | United States |
| 8 | FlowcoFLOC | $1.97B | $21.79 | +4.01% | United States |
| 9 | Innovex InternationalINVX | $1.97B | $28.10 | -8.47% | United States |
| 10 | HMHHMH | $863.3M | $19.65 | -1.41% | United States |
| 11 | Forum Energy TechnologiesFET | $834.8M | $74.23 | -1.33% | United States |
| 12 | Oil States InternationalOIS | $491.0M | $8.14 | -2.05% | United States |
| 13 | OMS Energy TechnologiesOMSE | $187.2M | $4.41 | +0.50% | Singapore |
| 14 | Drilling Tools InternationalDTI | $80.1M | $2.28 | -2.98% | United States |
| 15 | Leishen EnergyLSE | $75.1M | $4.41 | -3.08% | China |
| 16 | StakSTAK | $22.5M | $1.70 | -8.11% | China |
All 16 companies. One row per company — secondary share classes are folded into their primary listing. Updated 9 Aug 2026.
Sectors oil and gas field machinery companies sit in
Other industries
Semiconductors 100Computer Software: Programming Data Processing 77Computer Software: Prepackaged Software 232Computer Manufacturing 10Biotechnology: Pharmaceutical Preparations 501Major Banks 245Industrial Machinery/Components 209Catalog/Specialty Distribution 30Business Services 93Commercial Banks 35Auto Manufacturing 29Integrated oil Companies 18Investment Bankers/Brokers/Service 68Real Estate Investment Trusts 179Department/Specialty Retail Stores 14Oil & Gas Production 116Telecommunications Equipment 82Beverages (Production/Distribution) 35Electronic Components 21Finance: Consumer Services 163Electric Utilities: Central 59Consumer Electronics/Appliances 23Natural Gas Distribution 29Medical Specialities 44All industries →
Figures come from SEC filings and daily market prices. Companies listed only outside the US are not covered — see methodology.