Companies / Industry directory / Energy Oil & Gas Field Exploration Services 1 stock in Energy · SIC 1382. Company snapshot 2026-10-09 · Calculated market cap as of 2026-10-02 · USD Find a company or ticker Stocks in Oil & Gas Field Exploration Services. Sorted by market cap, largest first. Ticker Company Market Cap Revenue (TTM) Net Income (TTM) DWSN DAWSON GEOPHYSICAL CO $80.74M $104.31MTTM ended 2026-06-30 $3.64MTTM ended 2026-06-30 No matching companies.