Discovery Place
Industry Link - Oil & Gas
Media FX - Petroleum / Oil & Gas Links 
ODIN Oil Network
Oil Directory
Oil Online
OK Direct (Oil field contractors)
Petroleum Information Inc.
The Energy Exchange

Education

Graduate Study in Petroleum Engineering
Louisiana OSRADP
Storage Tank API-653 Inspection

Government

Department of Energy
Energy Information Administration
Environmental Protection Agency
Gas and Oil National Information Infrastructure
Minerals Management Service

Oil Companies

Alberta Energy Company
Amoco
Baker Hughes
Castle Oil Company
Chevron Services
Columbia Oil Company
Danoil Energy Ltd
Dennis Petroleum Company, Inc.
ESSO
Farm and Home Oil Company 
Halliburton
Harbour Petroleum Company Limited
Hildreth Oil Company
J.P. Oil Company
Kuwait National Petroleum Company 
NyvaTex Oil Corp 
Pease Oil and Gas Company 
Petróleos Mexicanos (Pemex) 
Pinnacle Oil International Inc. 
Redding Petroleum 
Schlumberger
Shell Oil Company
Statoil 
Stewart Petroleum Corporation 
Tetra Oil Company 
Total 
Western Petroleum Company 
YPF S.A 

Organizations

American Gas Association
American Petroleum Institute
Environmental Systems Research Institute
Gas Research Institute
Independant Petroleum Association
Interstate Oil & Gas Compact Commission
Louisiana Independant Oil & Gas Association
Louisiana Mid-Continent Oil & Gas Association
Petroleum Technology Research Information
Society of Petroleum Engineers
Texas Independant Producers
Western States Petroleum Assoc 

Products

AgipPetroli S.P.A.
Alpha Oil Tools
Aqualon Oilfield Chemicals
Frank's Casing Crew & Rental Tools
General Petroleum Oil Tools
Gregory Rig & Sales
Liquid Casing, Inc.
Martin Phase Converters
Oil Stop Inc.
Oklahoma Rig & Supply Co.
Secure Oil Tools
Setac Chemical Corporation
Supply Line
Supply Oilfield Services
Theta Enterprises, Inc 
Valley Perforating Company

Publications

Aral Energy News
Asia Infrastructure Database
Sandia Lab News

Services

Aladdin Middle East Ltd
Alaska Casing 
Albina Automated Fueling
American Oilfield Divers
Cherrington Corporation
Connell Trading Company Ltd.
Core Laboratories
Dalton Resources Ltd
DB & Associates Ltd.
EBCO
Ebony Gold & Gas Inc
Elf Exploration, Inc. 
Foreland Trough Pertroleum International
Fourth Valley Oil & Gas Group 
Grad & Walker Energy Corporation
Gulf Atlantic Drilling
Hycal Energy Research Laboratories Ltd.
Imperial Petroleum Recovery Corporation
Independant Completions Engineering Ltd.
Inuvialuit Petroleum Corporation 
Langham Petroleum Exploration Corp. 
Magnetic Pulse, Inc 
Marienfeld Royalty Corporation 
Mazur Associates 
Muchowich Offshore Oil Services
Mustang Mud 
Nabors Offshore Drilling
Newfield Exploration Company 
Northern PetroSearch Land Services Ltd 
Nowsco Well Service Ltd. 
Nuevo Energy Company 
Oil Burner Utility Company Inc. (OBU) 
Oil Capital Ltd.
Oil Management Services Ltd.
Oil Spot
Online Resource Exchange - TDC Energy 
Oryx Energy Company 
Oryx Natural Gas 
Petro Tech Services
Petroleum Engineering Services 
Petroleum Helicopters, Inc.
Petroleum Industry Training Service 
Petroleum Open Projects Consortium (POPC)
Petroleum Services Association of Canada
Petroleum Services Trading Assoc. Of Canada
Place Resources Corporation 
PLS Canada Inc 
PML Inc 
R.O. Albert 
Reading & Bates Corporation 
Remington Energy Ltd 
Repsol 
Ridge & Associates, Inc 
Ruwwe & Glasscock
Strata-Vault
Sub Sea International 
Sundowner Offshore Services, Inc.
Sunoco Inc. Sarnia Refinery 
Texas ISA Oil Division
United States Exploration, Inc 
Upside Engineering 
Veritas Associates
Wayne Division, Dresser Industries Inc. 
Woodhill Engineering Consultants 
Z.I. Probes Inc 
Zilkha Energy Company