THAILANDSICThailand Standard Industrial Classification

TSIC Activity

09100

Support activities for petroleum and natural gas extraction

ประกอบกิจการบริการให้คำปรึกษาด้านงาน สำรวจ ขุดเจาะ ซ่อม เป่าล้าง บ่อบาดาล ครบวงจร

What this activity covers

Companies provide services related to drilling for oil and natural gas under contract or for compensation.

  • Exploration services — Geological surveys for oil or natural gas
  • Drilling services — Drilling and re-drilling oil wells
  • Rig installation — Installing and repairing drilling rigs
  • Cementing services — Cementing casings and wells
  • Pumping services — Pumping oil from production wells
  • Testing services — Testing drilling related to oil and gas
  • Fire-fighting services — Fighting fires in oil and gas areas

What companies here also do

Seen in real company registrations under this code — beyond the official definition, so licensing may differ.

  • Mineral exploration — Research and trade in minerals and underground resources
  • Geothermal energy — Survey and develop geothermal resources
  • Environmental drilling — Soil and environmental drilling services

Not included here

  • Service activities performed by employees working regularly at crude oil or natural gas wells, see subgroups 0610 and 0620.
  • Repair of mining machinery requiring specialized personnel, see subgroup 3312.
  • Conversion of natural gas to liquids and regasification for transport, carried out outside mining, see subclass 5221.
  • Geophysical surveys, geological surveys and seismic surveys, see subgroup 7110.

Industry at a glance

as of 23 ก.ค. 69

The whole registered industry under this activity, every registration year, from the DBD DataWarehouse.

158
active companies operate here
฿161.1Bregistered capital, combined
฿21.3B
Sector revenue · 2025
+1% since 2023
฿6.1B
Net profit · 2025
70 profitable
202320242025

net profitrevenue

Foreign investment

new registrations · 2026 YTD
0%of new registered capital is foreign-held
฿0 foreign฿12.6M Thai

Based on few new registrations this year — read as a rough signal only.

2 of the 5 largest companies here are foreign-owned Thailand subsidiaries.

New in 2026

5+66.7%

registrations, YTD

Registered capital

฿161.1B+14.8%

since year-end

Source: Department of Business Development DataWarehouse. Financial figures are combined totals of companies that filed statements; revenue and profit shown for the latest three reporting years.

Companies registered since 2022

Browse all

New DBD registrations under this activity since 2022, the period the registry snapshot covers, not the full historical register.

26
Registered
since 2022
26
Still active
0
Dissolved
฿1.0M
Median capital
of active

New registrations per year

2022peak 9 in 20222026

Largest active companies by registered capital

Source: Department of Business Development (DBD) new-registration records, 2022 to present. Counts cover companies first registered in that window, reflect the latest snapshot load, and may lag the live register.

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