- American Petroleum Institute (API)
- Trade association representing the U.S. petroleum industry including exploration and production, transportation, refining, and marketing. - APLA
- Buenos Aires based association of petrochemical and chemical companies devoted to promoting the development of the sector. - Australian Institute of Petroleum
- Provides a wealth of minerals, energy & exploration resources targetted towards everyone including teachers, students and industry members. - Australian Petroleum Production & Exploration Association (APPEA)
- Represents companies involved in the exploration and production of oil and gas in Australia and companies which provide goods and services to the industry. - Australian Pipeline Industry Association (APIA)
- Representative membership organisation for the Australian oil and gas pipeline industry. Presents industry news, convention details, maps, and more. BPD Natural Resource Cluster
- Seeks to enhance the role of oil, gas, and mining corporations in development.- Brazilian Petroleum Institute (IBP)
- A private, nonprofit organisation promoting the development of the Brazilian petroleum industry. British Oil Security Syndicate (BOSS)
- Aims to reduce the amount of crime taking place on Britain's petrol forecourts.- California Independent Petroleum Association
- Nonprofit, non-partisan trade association representing independent producers, royalty owners, service and supply companies operating in the state. - Canadian Association of Oilwell Drilling Contractors (CAODC)
- Representing upstream Canadian petroleum drilling contractors -- land-based and offshore, service rig contractors and associate companies. - Canadian Institute of Mining, Metallurgy and Petroleum (CIM)
- Technical society of professionals in the Canadian minerals, metals materials, and energy industries (in English and French). - Coordinating Research Council
- Directs engineering and environmental studies on the interaction between automotive equipment and petroleum products. DEAL Data Registry
- Data source for the UK offshore oil and gas industry, providing maps, reference data, and catalogues of geotechnical data products.- Distribution Contractors Association
- Get the latest developments affecting the distribution construction industry. - Independent Oil and Gas Association of West Virginia
- Promotes and protects independent natural gas and oil producing industry in West Virginia. - Independent Petroleum Association of America
- For oil and gas exploration and production companies. The site provides membership services, legislative briefings, press materials and statistical data. - IndiaLPG
- Provides newsletter, technical information, glossary, and links about the LPG industry in Indian and global markets. - International Association of Drilling Contractors
- International trade association serving drilling contractors and the upstream petroleum industry since 1940. - International Forecourt Standards Forum
- Forum of international oil companies with the common objective of harmonisation of equipment interconnectivity and communication standards for use in the petroleum retail business. International Tanker Owners Pollution Federation, Ltd.
- Detailed information about ITOPF and oil spills from tankers including historical data; fate and effects; clean-up techniques; planning and response; compensation; and sources of further information.- Interstate Oil and Gas Compact Commission
- Representing the governors U.S. States on oil and natural gas issues. - Kansas Independent Oil & Gas Association
 - Kentucky Petroleum Marketers Association
- Trade association representing petroleum marketers who own and/or supply gasoline stations and convenience stores in Kentucky. - Louisiana Independent Oil and Gas Association
- LIOGA. - National Petroleum Council
 - National Society of Mining Petroleum and Energy
- Documents sector activities, publishes industry-specific committee reports, and hosts educational forums. - Oklahoma Energy Resources Board
- Restoring abandoned oilfield sites and educating the public about the oil & gas industry. - Organization of Petroleum Exporting Countries (OPEC)
- Official site for the intergovernmental organisation dedicated to the stability and prosperity of the petroleum market. - Oxygenated Fuels Association
- International trade association established to advance the use of oxygenated fuel additives to improve the combustion performance of gasoline. - Panhandle Producers & Royalty Owners Association
- Serving independent oil and gas producers, service companies,and royalty owners in the Texas Panhandle, Kansas & Oklahoma. - Petroleum Equipment Institute
- Representing U.S. firms engaged in the manufacture and distribution of industry marketing equipment. - Petroleum Industry Training Service
- P.I.T.S. is a nonprofit training organisation governed by a Board of Directors made up of senior representatives from the Canadian petroleum industry. - Petroleum Marketers Association of America (PMAA)
 - Petroleum Services Association of Canada
- Trade association representing the service, supply, and manufacturing sectors within the upstream petroleum industry. - Petroleum Technology Alliance Canada (PTAC)
- Organisation formed by some of North America's conventional oil and gas industry companies for the purpose of collaborative technology research and development. - POSC
- Not-for-profit membership organisation that supplies standard interfaces for technical Exploration & Production software. Premier Oil plc Shareholders Association
- Founded by shareholders dissatisfied with the present management of the company and with the aim of unlocking its true value.- Sales Expansion Professionals, LLC
- Network of independent sales representatives serving the energy industry to commercialize new products, global expansion, and entry into oil and gas markets. - Services Station Dealers of America and Allied Trades
- National association composed of individual and state affiliate associations representing service station dealers, repair facilities, car washes and convenience stores. - Society of Professional Well Log Analysts
- SPWLA. UK Offshore Operators Association (UKOOA)
- Representative organisation for the U.K. offshore oil and gas industry. UK Onshore Pipeline Operators Association (UKOPA)
- Provides the authoritative view of U.K. pipeline operators on strategic issues relating to safety management, operations, and maintenance of pipelines.- Western Petroleum Marketers Association
- Petroleum marketing and convenience store association covering the eight western states of the U.S. - Western States Petroleum Assoc
- WSPA represents companies which account for most of the exploration, production, refining, transportation and marketing of petroleum and petroleum products in six Western states. - World Petroleum Congresses Website
- Provides a forum for discussing the issues facing the oil industry on a worldwide basis.
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