All articles starting with P
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Petrol engine
A petrol engine, called a gasoline engine in the United States, is a spark-ignited internal combustion engine that burns petrol, igniting the fuel-air mixture with a spark plug.
Petrol Ofisi
Petrol Ofisi is a Turkish fuel distribution and lubricants company headquartered in Istanbul, active since 1941 and operating Turkey's largest network of about 2,600 fuel stations.
Petroleum
Petroleum, often called crude oil, is a naturally occurring mixture of hydrocarbons found underground, including crude oil, natural gas, and asphaltic compounds in tar sands and oil shales.
Petroleum and Natural Gas Regulatory Board
The Petroleum and Natural Gas Regulatory Board (PNGRB) is India's statutory regulator of downstream petroleum and natural gas, created by the PNGRB Act of 2006 to authorize pipelines, set tariffs, and protect consumers.
Petroleum coke
Petroleum coke, also known as petcoke, is a carbon-rich solid with 90 to 95 percent carbon made when refinery residual oils crack, used mainly for electricity generation and aluminum anodes.
Petroleum Development Oman (شركة تنمية نفط عمان)
Petroleum Development Oman (شركة تنمية نفط عمان) is Oman's state-linked oil and gas company, producing over 70% of national crude from Block 6; first oil exports left in 1967.
Petroleum engineering
Petroleum engineering is the branch of engineering that extracts oil and gas from underground reservoirs through well design, drilling, and reservoir management, spanning drilling, completions, reservoir, and production disciplines.
Petroleum ether
Petroleum ether, also called pet ether or ligroin, is a mixture of low-boiling aliphatic hydrocarbons from petroleum used as a nonpolar laboratory solvent despite containing no ether.
Petroleum exploration in the Arctic
Petroleum exploration in the Arctic covers oil and gas exploration in Arctic Alaska, the Chukchi and Beaufort Seas, Greenland, and Norway, marked by large USGS resource estimates, Shell's failed Chukchi wells, shifting U.S. leasing policy, and severe oil-spill response limits.
Petroleum in the United States
Petroleum in the United States covers oil production, refining, and trade in the US, the world's largest crude producer since 2018 with record output of 13.6 million barrels per day in 2025.
Petroleum industry
The petroleum industry, also called the oil and gas industry, covers the businesses that find, extract, refine, transport, and sell crude oil and products like gasoline and diesel.
Petroleum Industry Act 2021
The Petroleum Industry Act 2021 (PIA) is a Nigerian law providing the legal, governance, regulatory, and fiscal framework for the petroleum industry and host communities, signed in 2021.
Petroleum industry in Nigeria
The petroleum industry in Nigeria, also called the oil industry in Nigeria, is Africa's largest crude-producing sector, anchored in the Niger Delta since the 1956 Oloibiri discovery.
Petroleum jelly
Petroleum jelly, also called petrolatum or soft paraffin, is a purified semisolid hydrocarbon mixture from petroleum, used as an occlusive moisturizer and ointment base; it was patented as Vaseline by Robert Chesebrough in 1872.
Petroleum naphtha
Petroleum naphtha is a light hydrocarbon fraction distilled from crude oil, boiling between roughly 100 and 400 °F, used for gasoline blending, petrochemical feedstock, and as a solvent.
Petroleum oils
Petroleum oils, also called mineral, paraffin, or horticultural oils, are highly refined petroleum spray oils used as contact insecticides, miticides, and fungicides that smother pests, with no documented resistance.
Petroleum play
A petroleum play is a set of oil and gas accumulations sharing similar geologic, geographic, and temporal properties, used as the working unit for exploration.
Petroleum product
A petroleum product, also called an oil by-product, is any fuel or material obtained from processing crude oil at refineries, including gasoline, diesel, jet fuel, asphalt, and lubricants.
Petroleum refining processes
Petroleum refining processes are the industrial operations by which refineries convert crude oil into gasoline, diesel, jet fuel, and petrochemical feedstocks through three basic steps: separation, conversion, and treatment.
Petroleum Resource Rent Tax
The Petroleum Resource Rent Tax (PRRT) is an Australian federal profits-based tax of 40 percent on taxable profit of offshore petroleum projects, introduced in 1987.
Petroleum Resources Management System
The Petroleum Resources Management System (PRMS) is a global standard for classifying petroleum reserves and resources, sponsored by the Society of Petroleum Engineers and first issued in 2007.
Petroleum Sarawak Berhad
Petroleum Sarawak Berhad (PETROS) is the state-owned oil and gas company of Sarawak, Malaysia, incorporated in 2017, wholly owned by the state government, and sole domestic gas aggregator.
Petroleum system
A petroleum system, also called a hydrocarbon system, is a petroleum geology concept linking a source rock to the oil and gas it generated, formalized by Magoon and Dow in 1994.
Petrolia, Ontario
Petrolia is a town of about 6,000 in Lambton County, southwestern Ontario, incorporated in 1866 on one of North America's first commercial oil fields and Canada's top oil-producing center until 1894.
Petroliaco
Petroliaco, an ancient villa or estate in Roman Gaul named in the will of Desiderius of Cahors, mapped at Barrington Atlas 14 G4 and tentatively identified with Peyrillac, Dordogne.
Petrolina
Petrolina, Pernambuco, Brazil: municipality on the São Francisco River opposite Juazeiro, about 387,000 people (2022), center of the irrigated fruit-export and wine pole of the São Francisco Valley, seat of Univasf.
Petromar Oil and Gas Field
Petromar is the shallow-water offshore oil and gas production asset of OMV Petrom in the Romanian Black Sea, producing since 1987 from the Istria block.
Petromax (2019 film)
Petromax (பெட்ரோமாக்ஸ்), 2019 Tamil horror-comedy directed by Rohin Venkatesan, a remake of Telugu film Anando Brahma, starring Tamannaah as ghost Meera; released 11 October 2019, music by Ghibran.
Petronas
Petronas (Petroliam Nasional Berhad) is Malaysia's national oil and gas company, wholly owned by the government and established in 1974 under the Petroleum Development Act.
Petronas Towers
The Petronas Towers, also known as the PETRONAS Twin Towers, are twin 88-storey office towers in Kuala Lumpur, Malaysia, completed in 1998 and still the tallest twin towers ever built.