List of Sub-Industries
SIC Code Sub-Industry Companies
1381 Drilling Oil and Gas Wells 51
1382 Oil and Gas Field Exploration Services 41
1389 Oil and Gas Field Services, Not Elsewhere Classified 42
Member Companies

This list is made from self-reported SIC codes that companies file with the SEC.

Country Exchange Ticker Name Market Cap ($MM)
US OTCPK AMNI American Noble Gas, Inc.
NO OB ARCH Archer Limited
US OTCPK AKVA Arkanova Energy Corporation
CA TSX BTE Baytex Energy Corp.
US OTCPK BKRP Black Rock Petroleum Company
US NYSE BORR Borr Drilling Limited
US OTCPK CDVIQ Cal Dive International, Inc.
CA TSX CJ Cardinal Energy Ltd.
CA TSX CJ.WT Cardinal Energy Ltd. - Equity Warrant
US NYSE CLB Core Laboratories Inc.
US NasdaqGS DWSN Dawson Geophysical Company
US OTCPK DLTA Delta Oil & Gas, Inc.
DE XTRA DR0 Deutsche Rohstoff AG
FR ENXTPA ALDOL Dolfines SA
US ARCA SEMG EA Series Trust - Suncoast Select Growth ETF
US OTCPK EFIR EGPI Firecreek, Inc.
US OTCPK ERHE ERHC Energy Inc.
US OTCPK ENGT Energy & Technology, Corp.
US OTCPK ENSV Enservco Corporation
US OTCPK ERINQ Erin Energy Corporation
US NYSE XPRO Expro Group Holdings N.V.
US NasdaqGS FISV Fiserv, Inc.
AR BASE FISV Fiserv, Inc. - Depositary Receipt (Common Stock)
AR BASE FISVD Fiserv, Inc. - Depositary Receipt (Common Stock)
BR BOVESPA F1IS34 Fiserv, Inc. - Depositary Receipt (Common Stock)
DE DB FIV0 Fiserv, Inc. - Depositary Receipt (Common Stock)
US OTCPK FLSS Forbes Energy Services Ltd.
FR ENXTPA GTT Gaztransport & Technigaz SA
US OTCPK GZPZY Gaztransport & Technigaz SA - Depositary Receipt (Common Stock)
US OTCPK GNOLF Genoil Inc.
US NasdaqGM HERO Global X Funds - Global X Video Games & Esports ETF
US OTCPK HENI HINTO Energy, Inc.
US NYSE HAL Halliburton Company
AR BASE HALD Halliburton Company - Depositary Receipt (Common Stock)
BR BOVESPA HALI34 Halliburton Company - Depositary Receipt (Common Stock)
US ARCA EMES Harbor ETF Trust - Harbor Emerging Markets Select ETF
US NYSE HLX Helix Energy Solutions Group, Inc.
US NYSE HP Helmerich & Payne, Inc.
US NasdaqGM HPK HighPeak Energy, Inc.
US BATS CEGX Investment Managers Series Trust II - Tradr 2X Long CEG Daily ETF
US NasdaqGS KLXE KLX Energy Services Holdings, Inc.
US OTCPK KEGX Key Energy Services, Inc.
US OTCPK KKPT KoKo Petroleum Inc.
US OTCPK LOGL Legend Oil and Gas, Ltd.
US NYSE LBRT Liberty Energy Inc.
US NasdaqGS TUSK Mammoth Energy Services, Inc.
US OTCPK MKGP Maverick Energy Group, Ltd.
US OTCPK NSRS Medcann Industries, Inc.
AU ASX MSV Mitchell Services Limited
US NasdaqCM NCSM NCS Multistage Holdings, Inc.
US OTCPK NFTN NFiniTi Inc.
US OTCPK NSFDF NXT Energy Solutions Inc.
US NYSE NBR Nabors Industries Ltd.
US NasdaqCM NESR National Energy Services Reunited Corp.
US NYSE NGS Natural Gas Services Group, Inc.
US NYSEAM NINE Nine Energy Service, Inc.
US NYSE NE Noble Corporation plc
US NYSE NE.WSA Noble Corporation plc - Equity Warrant
US NYSE NE.WS Noble Corporation plc - Equity Warrant
US OTCPK NOBGY Noble Group Limited - Depositary Receipt (Common Stock)
CA TSX NOA North American Construction Group Ltd.
US NYSE OII Oceaneering International, Inc.
US OTCPK OCTX Octagon 88 Resources, Inc.
CA TSX PHX PHX Energy Services Corp.
US NasdaqGS PTEN Patterson-UTI Energy, Inc.
CA TSX PPL Pembina Pipeline Corporation
CA TSX PPL.PFA Pembina Pipeline Corporation - Preferred Security
CA TSX PPL.PFC Pembina Pipeline Corporation - Preferred Stock
CA TSX PPL.PRC Pembina Pipeline Corporation - Preferred Stock
CA TSX PPL.PRE Pembina Pipeline Corporation - Preferred Stock
CA TSX PPL.PRA Pembina Pipeline Corporation - Preferred Stock
CA TSX PPL.PRG Pembina Pipeline Corporation - Preferred Stock
CA TSX PPL.PRO Pembina Pipeline Corporation - Preferred Stock
CA TSX PPL.PRQ Pembina Pipeline Corporation - Preferred Stock
CA TSX PPL.PFE Pembina Pipeline Corporation - Preferred Stock
CA CNSX OIL Permex Petroleum Corporation
US OTCPK PQEFF Petroteq Energy Inc.
CA TSX PD Precision Drilling Corporation
US NasdaqGS ACDC ProFrac Holding Corp.
US NYSE PUMP ProPetro Holding Corp.
US NYSE RES RPC, Inc.
US OTCPK RTSO RTS Oil Holdings, Inc.
US NYSE RNGR Ranger Energy Services, Inc.
NO OB REACH Reach Subsea ASA
US NasdaqCM RCON Recon Technology, Ltd.
US OTCPK REOS ReoStar Energy Corp.
US NYSE SLB SLB N.V.
AR BASE SLB SLB N.V. - Depositary Receipt (Common Stock)
BR BOVESPA SLBG34 SLB N.V. - Depositary Receipt (Common Stock)
US NYSE WTTR Select Water Solutions, Inc.
US OTCPK SPLM Sentry Petroleum Ltd
US OTCPK SKPI Sky Petroleum, Inc.
CA TSXV SDI Stampede Drilling Inc.
NO OB SUBC Subsea 7 S.A.
US OTCPK SUBCY Subsea 7 S.A. - Depositary Receipt (Common Stock)
US OTCPK TEGR Terra Energy & Resource Technologies, Inc.
CA TSX TOT Total Energy Services Inc.
US NYSE RIG Transocean Ltd.
BR BOVESPA RIGG34 Transocean Ltd. - Depositary Receipt (Common Stock)
CA TSX TCW Trican Well Service Ltd.
US NYSE VAL Valaris Limited
US NYSE VAL.WS Valaris Limited - Equity Warrant
US OTCPK VTGDF Vantage Drilling Company
US OTCPK VTDRF Vantage Drilling International Ltd.
CA TSXV WEB Westbridge Renewable Energy S.A.
CN SHSE 603619 Zhongman Petroleum and Natural Gas Group Corp.,Ltd.
US OTCPK ZNOG Zion Oil & Gas, Inc.
US OTCPK ZNOGW Zion Oil & Gas, Inc. - Equity Warrant