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The petroleum industry, also known as the oil industry or the oil patch, includes the global processes of exploration, extraction, refining,
transportation Transport (in British English), or transportation (in American English), is the intentional movement of humans, animals, and goods from one location to another. Modes of transport include air, land (rail and road), water, cable, pipeline, ...
(often by
oil tanker An oil tanker, also known as a petroleum tanker, is a ship designed for the bulk transport of oil or its products. There are two basic types of oil tankers: crude tankers and product tankers. Crude tankers move large quantities of unrefined cru ...
s and pipelines), and marketing of
petroleum products Petroleum products are materials derived from crude oil (petroleum) as it is processed in oil refineries. Unlike petrochemicals, which are a collection of well-defined usually pure organic compounds, petroleum products are complex mixtures. The m ...
. The largest volume products of the industry are fuel oil and
gasoline Gasoline (; ) or petrol (; ) (see ) is a transparent, petroleum-derived flammable liquid that is used primarily as a fuel in most spark-ignited internal combustion engines (also known as petrol engines). It consists mostly of organi ...
(petrol).
Petroleum Petroleum, also known as crude oil, or simply oil, is a naturally occurring yellowish-black liquid mixture of mainly hydrocarbons, and is found in geological formations. The name ''petroleum'' covers both naturally occurring unprocessed crud ...
is also the raw material for many
chemical products Products are the species formed from chemical reactions. During a chemical reaction, reactants are transformed into products after passing through a high energy transition state. This process results in the consumption of the reactants. It can be ...
, including pharmaceuticals,
solvent A solvent (s) (from the Latin '' solvō'', "loosen, untie, solve") is a substance that dissolves a solute, resulting in a solution. A solvent is usually a liquid but can also be a solid, a gas, or a supercritical fluid. Water is a solvent for ...
s,
fertilizer A fertilizer (American English) or fertiliser (British English; see spelling differences) is any material of natural or synthetic origin that is applied to soil or to plant tissues to supply plant nutrients. Fertilizers may be distinct from ...
s, pesticides, synthetic fragrances, and
plastic Plastics are a wide range of synthetic or semi-synthetic materials that use polymers as a main ingredient. Their plasticity makes it possible for plastics to be moulded, extruded or pressed into solid objects of various shapes. This adaptab ...
s. The industry is usually divided into three major components: upstream,
midstream The oil and gas industry is usually divided into three major components: upstream, midstream and downstream. The midstream sector involves the transportation (by pipeline, rail, barge, oil tanker or truck), storage, and wholesale marketing of crud ...
, and
downstream Downstream may refer to: * Downstream (bioprocess) * Downstream (manufacturing) * Downstream (networking) * Downstream (software development) * Downstream (petroleum industry) * Upstream and downstream (DNA), determining relative positions on DNA ...
. Upstream regards exploration and extraction of crude oil, midstream encompasses transportation and storage of crude, and downstream concerns refining crude oil into various end products. Petroleum is vital to many industries, and is necessary for the maintenance of industrial
civilization A civilization (or civilisation) is any complex society characterized by the development of a state, social stratification, urbanization, and symbolic systems of communication beyond natural spoken language (namely, a writing system). ...
in its current configuration, making it a critical concern for many nations. Oil accounts for a large percentage of the world’s energy consumption, ranging from a low of 32% for
Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a subcontinent of Eurasia and it is located entirel ...
and
Asia Asia (, ) is one of the world's most notable geographical regions, which is either considered a continent in its own right or a subcontinent of Eurasia, which shares the continental landmass of Afro-Eurasia with Africa. Asia covers an are ...
, to a high of 53% for the
Middle East The Middle East ( ar, الشرق الأوسط, ISO 233: ) is a geopolitical region commonly encompassing Arabia (including the Arabian Peninsula and Bahrain), Asia Minor (Asian part of Turkey except Hatay Province), East Thrace (Europ ...
. Other geographic regions' consumption patterns are as follows: South and
Central America Central America ( es, América Central or ) is a subregion of the Americas. Its boundaries are defined as bordering the United States to the north, Colombia to the south, the Caribbean Sea to the east, and the Pacific Ocean to the west. ...
(44%),
Africa Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ...
(41%), and North America (40%). The world consumes 36 billion barrels (5.8 km³) of oil per year, with developed nations being the largest consumers. The
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...
consumed 18% of the oil produced in 2015. The production, distribution, refining, and retailing of petroleum taken as a whole represents the world's largest industry in terms of dollar value. The oil and gas industry spends only 0,4% of its net sales for Research & Development which is in comparison with a range of other industries the lowest share. Governments such as the United States government provide a heavy public subsidy to petroleum companies, with major tax breaks at various stages of oil exploration and extraction, including the costs of oil field leases and drilling equipment. In recent years, enhanced oil recovery techniques — most notably multi-stage drilling and hydraulic fracturing ("fracking") — have moved to the forefront of the industry as this new technology plays a crucial and controversial role in new methods of oil extraction.


History


Prehistory

Petroleum is a naturally occurring liquid found in rock formations. It consists of a complex mixture of hydrocarbons of various molecular weights, plus other organic compounds. It is generally accepted that oil is formed mostly from the carbon rich remains of ancient plankton after exposure to heat and pressure in
Earth Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large volumes of water can be found throughout the Solar System, only Earth sustains liquid surface water. About 71% of Earth's surfa ...
's crust over hundreds of millions of years. Over time, the decayed residue was covered by layers of mud and silt, sinking further down into Earth’s crust and preserved there between hot and pressured layers, gradually transforming into oil reservoirs.


Early history

Petroleum Petroleum, also known as crude oil, or simply oil, is a naturally occurring yellowish-black liquid mixture of mainly hydrocarbons, and is found in geological formations. The name ''petroleum'' covers both naturally occurring unprocessed crud ...
in an unrefined state has been utilized by humans for over 5000 years. Oil in general has been used since early
human history Human history, also called world history, is the narrative of humanity's past. It is understood and studied through anthropology, archaeology, genetics, and linguistics. Since the invention of writing, human history has been studied throug ...
to keep fires ablaze and in
war War is an intense armed conflict between states, governments, societies, or paramilitary groups such as mercenaries, insurgents, and militias. It is generally characterized by extreme violence, destruction, and mortality, using regular o ...
fare. Its importance to the world economy however, evolved slowly, with
whale oil Whale oil is oil obtained from the blubber of whales. Whale oil from the bowhead whale was sometimes known as train oil, which comes from the Dutch word ''traan'' (" tear" or "drop"). Sperm oil, a special kind of oil obtained from the head ...
being used for lighting in the 19th century and wood and coal used for heating and cooking well into the 20th century. Even though the
Industrial Revolution The Industrial Revolution was the transition to new manufacturing processes in Great Britain, continental Europe, and the United States, that occurred during the period from around 1760 to about 1820–1840. This transition included going f ...
generated an increasing need for energy, this was initially met mainly by coal, and from other sources including whale oil. However, when it was discovered that
kerosene Kerosene, paraffin, or lamp oil is a combustible hydrocarbon liquid which is derived from petroleum. It is widely used as a fuel in aviation as well as households. Its name derives from el, κηρός (''keros'') meaning "wax", and was regi ...
could be extracted from crude oil and used as a lighting and heating fuel, the demand for petroleum increased greatly, and by the early twentieth century had become the most valuable commodity traded on world markets.Halliday, Fred. The Middle East in International Relations: Cambridge University Press: USA, p. 270


Modern history

Imperial Russia produced 3,500 tons of oil in 1825 and doubled its output by mid-century. After oil drilling began in the region of present-day
Azerbaijan Azerbaijan (, ; az, Azərbaycan ), officially the Republic of Azerbaijan, , also sometimes officially called the Azerbaijan Republic is a transcontinental country located at the boundary of Eastern Europe and Western Asia. It is a part of t ...
in 1846, in Baku, the
Russian Empire The Russian Empire was an empire and the final period of the Russian monarchy from 1721 to 1917, ruling across large parts of Eurasia. It succeeded the Tsardom of Russia following the Treaty of Nystad, which ended the Great Northern War. ...
built two large pipelines: the 833 km long pipeline to transport oil from the Caspian to the
Black Sea The Black Sea is a marginal mediterranean sea of the Atlantic Ocean lying between Europe and Asia, east of the Balkans, south of the East European Plain, west of the Caucasus, and north of Anatolia. It is bounded by Bulgaria, Georgia, Rom ...
port of
Batum Batumi (; ka, ბათუმი ) is the second largest city of Georgia and the capital of the Autonomous Republic of Adjara, located on the coast of the Black Sea in Georgia's southwest. It is situated in a subtropical zone at the foot of t ...
(Baku-Batum pipeline), completed in 1906, and the 162 km long pipeline to carry oil from Chechnya to the Caspian. The first drilled oil wells in Baku were built in 1871-1872 by Ivan Mirzoev, an
Armenian Armenian may refer to: * Something of, from, or related to Armenia, a country in the South Caucasus region of Eurasia * Armenians, the national people of Armenia, or people of Armenian descent ** Armenian Diaspora, Armenian communities across the ...
businessman who is referred to as one of the 'founding fathers' of Baku's oil industry. At the turn of the 20th century, Imperial Russia's output of oil, almost entirely from the Apsheron Peninsula, accounted for half of the world's production and dominated international markets.Shirin Akiner, Anne Aldis. ''The Caspian: Politics, Energy and Security''. Routledge, 2004. P. 5. Nearly 200 small refineries operated in the suburbs of Baku by 1884. As a side effect of these early developments, the Apsheron Peninsula emerged as the world's "oldest legacy of oil pollution and environmental negligence". In 1846 Baku (Bibi-Heybat settlement) featured the first ever well drilled with percussion tools to a depth of 21 meters for oil exploration. In 1878 Ludvig Nobel and his Branobel company "revolutionized oil transport" by commissioning the first
oil tanker An oil tanker, also known as a petroleum tanker, is a ship designed for the bulk transport of oil or its products. There are two basic types of oil tankers: crude tankers and product tankers. Crude tankers move large quantities of unrefined cru ...
and launching it on the
Caspian Sea The Caspian Sea is the world's largest inland body of water, often described as the world's largest lake or a full-fledged sea. An endorheic basin, it lies between Europe and Asia; east of the Caucasus, west of the broad steppe of Central Asia ...
. Samuel Kier established America's first oil refinery in Pittsburgh on Seventh avenue near Grant Street in 1853.
Ignacy Łukasiewicz Jan Józef Ignacy Łukasiewicz (; 8 March 1822 – 7 January 1882) was a Polish pharmacist, engineer, businessman, inventor, and philanthropist. He was one of the most prominent philanthropists in the Kingdom of Galicia and Lodomeria, crown land o ...
built one of the first modern oil-refineries near
Jasło Jasło is a county town in south-eastern Poland with 36,641 inhabitants, as of 31 December 2012. It is situated in the Subcarpathian Voivodeship (since 1999), and it was previously part of Krosno Voivodeship (1975–1998). It is located in Lesse ...
(then in the Austrian dependent
Kingdom of Galicia and Lodomeria The Kingdom of Galicia and Lodomeria,, ; pl, Królestwo Galicji i Lodomerii, ; uk, Королівство Галичини та Володимирії, Korolivstvo Halychyny ta Volodymyrii; la, Rēgnum Galiciae et Lodomeriae also known as ...
in Central European Galicia), present-day Poland, in 1854–56. Galician refineries were initially small, as demand for refined fuel was limited. The refined products were used in artificial asphalt, machine oil and lubricants, in addition to Łukasiewicz's kerosene lamp. As kerosene lamps gained popularity, the refining industry grew in the area. The first commercial oil-well in Canada became operational in 1858 at
Oil Springs, Ontario Oil Springs is a village in Lambton County, Ontario, Canada, located along Former Provincial Highway 21 south of Oil City. The village, an enclave within Enniskillen Township, is the site of North America's first commercial oil well. It is home ...
(then
Canada West The Province of Canada (or the United Province of Canada or the United Canadas) was a British colony in North America from 1841 to 1867. Its formation reflected recommendations made by John Lambton, 1st Earl of Durham, in the Report on the ...
). Businessman
James Miller Williams James Miller Williams (September 14, 1818 – November 25, 1890) was a Canadian-American businessman and politician. Williams is best known for establishing the first commercially successful oil well in 1858 and igniting the first oil boom i ...
dug several wells between 1855 and 1858 before discovering a rich reserve of oil four metres below ground. Williams extracted 1.5 million litres of crude oil by 1860, refining much of it into kerosene-lamp oil. Some historians challenge Canada's claim to North America's first oil field, arguing that
Pennsylvania Pennsylvania (; ( Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, ...
's famous Drake Well was the continent's first. But there is evidence to support Williams, not least of which is that the Drake well did not come into production until August 28, 1859. The controversial point might be that Williams found oil above bedrock while Edwin Drake’s well located oil within a bedrock
reservoir A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including contro ...
. The discovery at Oil Springs touched off an oil boom which brought hundreds of speculators and workers to the area. Canada's first gusher (flowing well) erupted on January 16, 1862, when local oil-man John Shaw struck oil at 158 feet (48 m). For a week the oil gushed unchecked at levels reported as high as 3,000 barrels per day. The first modern oil-drilling in the United States began in West Virginia and Pennsylvania in the 1850s. Edwin Drake's 1859 well near Titusville, Pennsylvania, typically considered the first true modern oil well, touched off a major boom.John Steele Gordon
"10 Moments That Made American Business," ''American Heritage'', February/March 2007 - "Drake, who seems to have awarded himself the title of colonel by which he is often known, had a great deal of trouble persuading a salt-drilling crew to try to drill for oil, but on August 27, 1859, he struck it at 69 feet."
Vassiliou, Marius (2018). Historical Dictionary of the Petroleum Industry, 2nd Ed. Lanham, MD: Rowman and Littlefield, 621 pp. In the first quarter of the 20th century, the United States overtook Russia as the world's largest oil producer. By the 1920s, oil fields had been established in many countries including Canada, Poland, Sweden, Ukraine, the United States, Peru and Venezuela. The first successful
oil tanker An oil tanker, also known as a petroleum tanker, is a ship designed for the bulk transport of oil or its products. There are two basic types of oil tankers: crude tankers and product tankers. Crude tankers move large quantities of unrefined cru ...
, the ''Zoroaster'', was built in 1878 in Sweden, designed by Ludvig Nobel. It operated from Baku to
Astrakhan Astrakhan ( rus, Астрахань, p=ˈastrəxənʲ) is the largest city and administrative centre of Astrakhan Oblast in Southern Russia. The city lies on two banks of the Volga, in the upper part of the Volga Delta, on eleven islands of the ...
. A number of new tanker designs developed in the 1880s. In the early 1930s the Texas Company developed the first mobile steel barges for drilling in the brackish coastal areas of the
Gulf of Mexico The Gulf of Mexico ( es, Golfo de México) is an ocean basin and a marginal sea of the Atlantic Ocean, largely surrounded by the North American continent. It is bounded on the northeast, north and northwest by the Gulf Coast of the United ...
. In 1937
Pure Oil Company Pure Oil Company was an American petroleum company founded in 1914 and sold to what is now Union Oil Company of California in 1965. The Pure Oil name returned in 1993 as a cooperative (based in Rock Hill, South Carolina since 2008) which has grow ...
(now part of Chevron Corporation) and its partner Superior Oil Company (now part of ExxonMobil Corporation) used a fixed platform to develop a field in of water, one mile (1.6 km) offshore of
Calcasieu Parish, Louisiana Calcasieu Parish (; french: Paroisse de Calcasieu) is a parish located on the southwestern border of the U.S. state of Louisiana. As of the 2020 census, the population was 216,785. The parish seat is Lake Charles. Calcasieu Parish is part ...
. In early 1947 Superior Oil erected a drilling/production oil-platform in of water some 18 miles off Vermilion Parish, Louisiana.
Kerr-McGee The Kerr-McGee Corporation, founded in 1929, was an American energy company involved in oil exploration, production of crude oil, natural gas, perchlorate and uranium mining and milling in various countries. On June 23, 2006, Anadarko Petroleum ...
Oil Industries, as operator for partners Phillips Petroleum ( ConocoPhillips) and Stanolind Oil & Gas ( BP), completed its historic Ship Shoal Block 32 well in November 1947, months before Superior actually drilled a discovery from their Vermilion platform farther offshore. In any case, that made Kerr-McGee's Gulf of Mexico well, Kermac No. 16, the first oil discovery drilled out of sight of land. Forty-four Gulf of Mexico exploratory wells discovered 11 oil and natural gas fields by the end of 1949. During
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing ...
(1939–1945) control of oil supply from Romania, Baku, the Middle East and the Dutch East Indies played a huge role in the events of the war and the ultimate victory of the Allies. The Anglo-Soviet invasion of Iran (1941) secured Allied control of oil-production in the Middle East. The expansion of
Imperial Japan The also known as the Japanese Empire or Imperial Japan, was a historical nation-state and great power that existed from the Meiji Restoration in 1868 until the enactment of the post-World War II 1947 constitution and subsequent forma ...
to the south aimed largely at accessing the oil-fields of the Dutch East Indies. Germany, cut off from sea-borne oil supplies by Allied blockade, failed in
Operation Edelweiss The Battle of the Caucasus is a name given to a series of Axis and Soviet operations in the Caucasus area on the Eastern Front of World War II. On 25 July 1942, German troops captured Rostov-on-Don, Russia, opening the Caucasus region of t ...
to secure the
Caucasus The Caucasus () or Caucasia (), is a region between the Black Sea and the Caspian Sea, mainly comprising Armenia, Azerbaijan, Georgia (country), Georgia, and parts of Southern Russia. The Caucasus Mountains, including the Greater Caucasus range ...
oil-fields for the
Axis An axis (plural ''axes'') is an imaginary line around which an object rotates or is symmetrical. Axis may also refer to: Mathematics * Axis of rotation: see rotation around a fixed axis * Axis (mathematics), a designator for a Cartesian-coordinat ...
military in 1942, while Romania deprived the
Wehrmacht The ''Wehrmacht'' (, ) were the unified armed forces of Nazi Germany from 1935 to 1945. It consisted of the ''Heer'' (army), the '' Kriegsmarine'' (navy) and the ''Luftwaffe'' (air force). The designation "''Wehrmacht''" replaced the previo ...
of access to Ploesti oilfields - the largest in Europe - from August 1944. Cutting off the East Indies oil-supply (especially via submarine campaigns) considerably weakened Japan in the latter part of the war. After World War II ended in 1945, the countries of the
Middle East The Middle East ( ar, الشرق الأوسط, ISO 233: ) is a geopolitical region commonly encompassing Arabia (including the Arabian Peninsula and Bahrain), Asia Minor (Asian part of Turkey except Hatay Province), East Thrace (Europ ...
took the lead in oil production from the United States. Important developments since World War II include deep-water drilling, the introduction of the
drillship A drillship is a merchant vessel designed for use in exploratory offshore drilling of new oil and gas wells or for scientific drilling purposes. In recent years the vessels have been used in deepwater and ultra-deepwater applications, equipped ...
, and the growth of a global shipping network for petroleum - relying upon oil tankers and pipelines. In 1949 the first offshore oil-drilling at Oil Rocks (Neft Dashlari) in the Caspian Sea off Azerbaijan eventually resulted in a city built on pylons. In the 1960s and 1970s, multi-governmental organizations of oil–producing nations - OPEC and OAPEC - played a major role in setting petroleum prices and policy. Oil spills and their cleanup have become an issue of increasing political, environmental, and economic importance. New fields of hydrocarbon production developed in places such as Siberia, Sakhalin,
Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th ...
and North and West Africa. With the advent of hydraulic fracturing and other
horizontal drilling Directional drilling (or slant drilling) is the practice of drilling non-vertical bores. It can be broken down into four main groups: oilfield directional drilling, utility installation directional drilling, directional boring (horizontal dir ...
techniques, shale play has seen an enormous uptick in production. Areas of shale such as the Permian Basin and Eagle-Ford have become huge hotbeds of production for the largest oil corporations in the United States.


Structure

The
American Petroleum Institute The American Petroleum Institute (API) is the largest U.S. trade association for the oil and natural gas industry. It claims to represent nearly 600 corporations involved in production, refinement, distribution, and many other aspects of the ...
divides the petroleum industry into five sectors: * upstream ( exploration, development and production of crude oil or natural gas) *
downstream Downstream may refer to: * Downstream (bioprocess) * Downstream (manufacturing) * Downstream (networking) * Downstream (software development) * Downstream (petroleum industry) * Upstream and downstream (DNA), determining relative positions on DNA ...
( oil tankers, refiners, retailers and consumers) * pipeline * marine * service and supply


Upstream

Oil companies The following is a list of notable companies in the petroleum industry that are engaged in petroleum exploration and production. The list is in alphabetical order by continent and then by country. This list does not include companies only involved ...
used to be classified by sales as ''"
supermajor Big Oil is a name used to describe the world's six or seven largest publicly traded and investor-owned oil and gas companies, also known as supermajors. The term, particularly in the United States, emphasizes their economic power and influence ...
s"'' ( BP, Chevron, ExxonMobil, ConocoPhillips,
Shell Shell may refer to: Architecture and design * Shell (structure), a thin structure ** Concrete shell, a thin shell of concrete, usually with no interior columns or exterior buttresses ** Thin-shell structure Science Biology * Seashell, a hard o ...
, Eni and TotalEnergies), ''"majors",'' and ''"independents" or "jobbers".'' In recent years however, National Oil Companies (NOC, as opposed to IOC, International Oil Companies) have come to control the rights over the largest oil reserves; by this measure the top ten companies all are NOC. The following table shows the ten largest national oil companies ranked by reservesRanking by oil reserves and production, 2006 values and by production in 2012. Most upstream work in the oil field or on an oil well is
contract A contract is a legally enforceable agreement between two or more parties that creates, defines, and governs mutual rights and obligations between them. A contract typically involves the transfer of goods, services, money, or a promise to tr ...
ed out to drilling contractors and oil field service companies. Aside from the NOCs which dominate the Upstream sector, there are many international companies that have a market share. For example: *
BG Group BG Group plc was a British multinational oil and gas company headquartered in Reading, United Kingdom. On 8 April 2015, Royal Dutch Shell announced that it had reached an agreement to acquire BG Group for $70 billion, subject to regulatory and ...
*
BHP BHP Group Limited (formerly known as BHP Billiton) is an Australian multinational mining, metals, natural gas petroleum public company that is headquartered in Melbourne, Victoria, Australia. The Broken Hill Proprietary Company was founded ...
* ConocoPhillips * Chevron * Eni * ExxonMobil * First Texas Energy Corporation *
Hess Hess or Heß may refer to: * Hess (surname), also ''Heß'' in German, people with the surname Hess * Hess, Oklahoma, a community in the United States * Hess Educational Organization, the largest private provider of English instruction in the Rep ...
* Marathon Oil
oil company
petroleum products *
OMV OMV (formerly abbreviation for Österreichische Mineralölverwaltung Aktiengesellschaft ('' en, Austrian Mineral Oil Administration Stock Company'')) is an Austrian multinational integrated oil, gas and petrochemical company which is headquart ...
* TotalEnergies *
Tullow Oil Tullow Oil plc is a multinational oil and gas exploration company founded in Tullow, Ireland, with its headquarters in London, United Kingdom. The company is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index. His ...
* Rosneft


Midstream

Midstream The oil and gas industry is usually divided into three major components: upstream, midstream and downstream. The midstream sector involves the transportation (by pipeline, rail, barge, oil tanker or truck), storage, and wholesale marketing of crud ...
operations are sometimes classified within the downstream sector, but these operations compose a separate and discrete sector of the petroleum industry. Midstream operations and processes include the following: * Gathering: The gathering process employs narrow, low-pressure pipelines to connect oil- and gas-producing wells to larger, long-haul pipelines or processing facilities. * Processing/refining: Processing and refining operations turn crude oil and gas into marketable products. In the case of crude oil, these products include heating oil,
gasoline Gasoline (; ) or petrol (; ) (see ) is a transparent, petroleum-derived flammable liquid that is used primarily as a fuel in most spark-ignited internal combustion engines (also known as petrol engines). It consists mostly of organi ...
for use in vehicles, jet fuel, and diesel oil. Oil refining processes include distillation, vacuum distillation,
catalytic reforming Catalytic reforming is a chemical process used to convert petroleum refinery naphthas distilled from crude oil (typically having low octane ratings) into high-octane liquid products called reformates, which are premium blending stocks for high-oc ...
, catalytic cracking, alkylation,
isomerization In chemistry, isomerization or isomerisation is the process in which a molecule, polyatomic ion or molecular fragment is transformed into an isomer with a different chemical structure. Enolization is an example of isomerization, as is tautomeriz ...
and hydrotreating. Natural gas processing includes
compression Compression may refer to: Physical science *Compression (physics), size reduction due to forces *Compression member, a structural element such as a column *Compressibility, susceptibility to compression * Gas compression *Compression ratio, of a ...
; glycol dehydration;
amine treating Amine gas treating, also known as amine scrubbing, gas sweetening and acid gas removal, refers to a group of processes that use aqueous solutions of various alkylamines (commonly referred to simply as amines) to remove hydrogen sulfide (H2S) and c ...
; separating the product into pipeline-quality natural gas and a stream of mixed natural gas liquids; and fractionation, which separates the stream of mixed natural gas liquids into its components. The fractionation process yields
ethane Ethane ( , ) is an organic chemical compound with chemical formula . At standard temperature and pressure, ethane is a colorless, odorless gas. Like many hydrocarbons, ethane is isolated on an industrial scale from natural gas and as a petroc ...
, propane, butane, isobutane, and natural gasoline. * Transportation: Oil and gas are transported to processing facilities, and from there to end users, by pipeline, tanker/barge,
truck A truck or lorry is a motor vehicle designed to transport cargo, carry specialized payloads, or perform other utilitarian work. Trucks vary greatly in size, power, and configuration, but the vast majority feature body-on-frame constructi ...
, and
rail Rail or rails may refer to: Rail transport *Rail transport and related matters *Rail (rail transport) or railway lines, the running surface of a railway Arts and media Film * ''Rails'' (film), a 1929 Italian film by Mario Camerini * ''Rail'' ( ...
. Pipelines are the most economical transportation method and are most suited to movement across longer distances, for example, across continents. Tankers and barges are also employed for long-distance, often international transport. Rail and truck can also be used for longer distances but are most cost-effective for shorter routes. * Storage: Midstream service providers provide storage facilities at terminals throughout the oil and gas distribution systems. These facilities are most often located near refining and processing facilities and are connected to pipeline systems to facilitate shipment when product demand must be met. While petroleum products are held in storage tanks, natural gas tends to be stored in underground facilities, such as salt dome caverns and depleted reservoirs. * Technological applications: Midstream service providers apply technological solutions to improve efficiency during midstream processes. Technology can be used during compression of fuels to ease flow through pipelines; to better detect leaks in pipelines; and to automate communications for better pipeline and equipment monitoring. While some upstream companies carry out certain midstream operations, the midstream sector is dominated by a number of companies that specialize in these services. Midstream companies include: * Aux Sable * Bridger Group * DCP Midstream Partners * Enbridge Energy Partners * Enterprise Products Partners * Genesis Energy * Gibson Energy * Inergy Midstream * Kinder Morgan Energy Partners * Oneok Partners * Plains All American * Sunoco Logistics * Targa Midstream Services * Targray Natural Gas Liquids * TransCanada * Williams Companies


Environmental impact


Water pollution

Some petroleum industry operations have been responsible for
water pollution Water pollution (or aquatic pollution) is the contamination of water bodies, usually as a result of human activities, so that it negatively affects its uses. Water bodies include lakes, rivers, oceans, aquifers, reservoirs and groundwater. ...
through by-products of refining and oil spills. Though hydraulic fracturing has significantly increased natural gas extraction, there is some belief and evidence to support that consumable water has seen increased in methane contamination due to this gas extraction. Leaks from underground tanks and abandoned refineries may also contaminate groundwater in surrounding areas. Hydrocarbons that comprise refined petroleum are resistant to biodegradation and have been found to remain present in contaminated soils for years. To hasten this process,
bioremediation Bioremediation broadly refers to any process wherein a biological system (typically bacteria, microalgae, fungi, and plants), living or dead, is employed for removing environmental pollutants from air, water, soil, flue gasses, industrial effluent ...
of petroleum hydrocarbon pollutants is often employed by means of aerobic degradation. More recently, other bioremediative methods have been explored such as
phytoremediation Phytoremediation technologies use living plants to clean up soil, air and water contaminated with hazardous contaminants. It is defined as "the use of green plants and the associated microorganisms, along with proper soil amendments and agronom ...
and thermal remediation.


Air pollution

The industry is the largest industrial source of emissions of volatile organic compounds (VOCs), a group of chemicals that contribute to the formation of ground-level
ozone Ozone (), or trioxygen, is an inorganic molecule with the chemical formula . It is a pale blue gas with a distinctively pungent smell. It is an allotrope of oxygen that is much less stable than the diatomic allotrope , breaking down in the lo ...
( smog). The combustion of fossil fuels produces
greenhouse gases A greenhouse gas (GHG or GhG) is a gas that absorbs and emits radiant energy within the thermal infrared range, causing the greenhouse effect. The primary greenhouse gases in Earth's atmosphere are water vapor (), carbon dioxide (), methane ...
and other air pollutants as by-products. Pollutants include nitrogen oxides, sulphur dioxide,
volatile organic compound Volatile organic compounds (VOCs) are organic compounds that have a high vapour pressure at room temperature. High vapor pressure correlates with a low boiling point, which relates to the number of the sample's molecules in the surrounding air, a ...
s and heavy metals. Researchers have discovered that the petrochemical industry can produce ground-level ozone pollution at higher amounts in winter than in summer.


Climate change

The
greenhouse gases A greenhouse gas (GHG or GhG) is a gas that absorbs and emits radiant energy within the thermal infrared range, causing the greenhouse effect. The primary greenhouse gases in Earth's atmosphere are water vapor (), carbon dioxide (), methane ...
due to fossil fuels drive
climate change In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to ...
. Already in 1959, at a symposium organised by the
American Petroleum Institute The American Petroleum Institute (API) is the largest U.S. trade association for the oil and natural gas industry. It claims to represent nearly 600 corporations involved in production, refinement, distribution, and many other aspects of the ...
for the centennial of the
American oil industry Petroleum has been a major industry in the United States since shortly after the oil discovery in the Oil Creek area of Titusville, Pennsylvania in 1859. The industry includes exploration, production, processing (refining), transportati ...
, the
physicist A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate cau ...
Edward Teller Edward Teller ( hu, Teller Ede; January 15, 1908 – September 9, 2003) was a Hungarian-American theoretical physicist who is known colloquially as "the father of the hydrogen bomb" (see the Teller–Ulam design), although he did not care for ...
warned then of the danger of global
climate change In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to ...
. Edward Teller explained that carbon dioxide "in the atmosphere causes a greenhouse effect" and that burning more fossil fuels could "melt the icecap and submerge New York".Benjamin Franta
"On its 100th birthday in 1959, Edward Teller warned the oil industry about global warming"
''
The Guardian ''The Guardian'' is a British daily newspaper. It was founded in 1821 as ''The Manchester Guardian'', and changed its name in 1959. Along with its sister papers ''The Observer'' and ''The Guardian Weekly'', ''The Guardian'' is part of the Gu ...
'', 1 January 2018 (page visited on 2 January 2018).
The Intergovernmental Panel on Climate Change, founded by the
United Nations The United Nations (UN) is an intergovernmental organization whose stated purposes are to maintain international peace and security, develop friendly relations among nations, achieve international cooperation, and be a centre for harmoniz ...
in 1988, concludes that human-sourced
greenhouse gases A greenhouse gas (GHG or GhG) is a gas that absorbs and emits radiant energy within the thermal infrared range, causing the greenhouse effect. The primary greenhouse gases in Earth's atmosphere are water vapor (), carbon dioxide (), methane ...
are responsible for most of the observed temperature increase since the middle of the twentieth century. As a result of climate change concerns, many alternative energy enthusiasts have begun using other methods of energy such as solar and wind, among others. This recent view has some petroleum enthusiasts skeptical about the true future of the industry.


See also


Notes and references


Further reading

* * Nevins, Alan. ''John D. Rockefeller The Heroic Age Of American Enterprise'' (1940); 710pp; favorable scholarly biography
online

Ordons Oil & Gas Information & News
* Robert Sobel ''The Money Manias: The Eras of Great Speculation in America, 1770–1970'' (1973) reprinted (2000). *
Daniel Yergin Daniel Howard Yergin (born February 6, 1947) is an American author, speaker, energy expert, and economic historian. Yergin is vice chairman of S&P Global. He was formerly vice chairman of IHS Markit, which merged with S&P in 2022. He founded C ...
, '' The Prize: The Epic Quest for Oil, Money, and Power'', (Simon and Schuster 1991; paperback, 1993), . * Matthew R. Simmons, '' Twilight in the Desert: The Coming Saudi Oil Shock and the World Economy'', John Wiley & Sons, 2005, . * Matthew Yeomans, ''Oil: Anatomy of an Industry'' (New Press, 2004), . * Smith, GO (1920): Where the World Gets Its Oil: National Geographic, February 1920, pp 181–202 *
Marius Vassiliou Marius Vassiliou (born 1957) is an American computational scientist, geophysicist, and aerospace executive. He is also an authority on the history of petroleum. Vassiliou is of Greek Cypriot descent and was educated at Harvard University and t ...
, ''Historical Dictionary of the Petroleum Industry, 2nd Ed.''. Lanham, MD: Rowman & Littlefield, 2018, 621 pp. . * * Miryusif Mirbabayev, ''Concise History of Azerbaijani Oil''. Baku, Azerneshr, (2008), 340pp. * Miryusif Mirbabayev, ''Brief history of the first drilled oil well; and the people involved - Oil-Industry History (USA), 2017, v.18, #1, p.25-34. * James Douet, ''The Heritage of the Oil Industry TICCIH Thematic Study - The International Committee for the Conservation of the Industrial Heritage, 2020, 79pp.


External links


Mir-Yusif Mir-Babayev: Petroleum History. The first Baku oil magazine


* ttp://www.petroleumworld.com/eveditorial20123101.htm Mir-Yusif Mir-Babayev: Brief history of oil and gas production {{DEFAULTSORT:Petroleum Industry Fossil fuels Industries (economics)