- AGR RES
- Aminex plc
- Anadarko
- Antrim Energy
- Apache North Sea Ltd
- BHP Billiton
- Britannia Operators
- British Energy
- Burren Energy
- CCOP, Thailand
- Centrica
- Chesapeake Energy
- Chevron
- Cobalt Energy
- Common Resources
- Comstock Resources
- ConocoPhillips
- CGG Borehole Services
- CNR
- Department of Energy, the Philippines
- Department of Marine and Nat. Res. Ireland
- Devon Energy Corp.
- Dong E & P (UK) Ltd.
- Ecopetrol srl.
- Elf Petroleos do Brasil
- Encana Corporation
- Endeavour
- ENI
- EOG Resources
- ExxonMobil Expl.Co
- Focus Exploration
- Forest Oil
- Fugro
- Geofizyka Torun Sp.
- Geokinetics
- Geo Global Resources
- GEUS - Geological Survey of Denmark and Greenland
- Global Resources
- Gulfsands Petroleum
- Hess
- Highmount Exploration
- Husky Oil Operation
- Karachaganak Project Dev Ltd.
- Kosmos Energy
- Kuwait Oil Company
- Leede Operating Co.
- LEMIGAS
- Marathon Oil
- Mariner Energy
- Milagro Exploration
- Murphy Petroleum
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- Mærsk Oil A/S
- Newfield Exploration
- Nexen Petroleum
- Noble Energy (Europe) Ltd.
- Noreco
- Nuevo Energy Co.
- Octex
- OilExco
- OMV
- Petro-Canada
- Petro-Hunt
- Petrologic Geophysical Services
- PETRONAS
- Petro Summit Investment UK Ltd.
- Phoenix Exploration
- Pioneer Natural Resources Co
- Plains Exploration
- Premier Oil
- PTTEP
- Qingdao Institute of Marine Geology, China
- Range Resources
- Roc Oil Company Limited
- RWE-DEA
- Samson Resources
- SandRidge Energy
- Schlumberger
- Shell Oil
- Sintef Petroleum
- Sklar Exploration
- Soco International plc
- StatoilHydro
- Stratic Energy
- Tana Exploration
- Terralliance
- TOTAL
- Torch Energy Advisors
- Transparent Solutions
- Tullow oil
- University of Calgary
- University of Cambridge
- University of Durham
- University of Leoben
- University of Melbourne
- University of Stavanger
- University of Texas, Austin
- Valhalla O & G
- Valiant Petroleum
- Verenex Energy
- Vermilion Energy Trust
- Vietnam Petroleum Institute
- Walter Oil & Gas
- Wavetech Geophysical
- Wintershall AG
- Woodside Energy
- Zenergy Inc
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