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50 free Fossil Fuels trivia questions with answers — science & nature quiz, new questions added Aug 2026.
Fossil fuels still supply most of the world's energy, and the story of how we found, fought over and burned them is full of odd detail: a driller given a fake military title to impress a town, a gas field shut down by the tremors it caused, and a benchmark crude named after a bird. This quiz covers the geology of how coal, oil and gas formed, the first wells and gushers, the rise and break-up of the great oil trust, OPEC and the 1973 embargo, fracking and shale, LNG, the barrel and the benchmarks, pipelines and supertankers, mining and rig disasters, and the dates that mark coal's decline. It suits students revising energy topics, pub-quiz setters and anyone curious about where the fuel in the tank and the power in the socket actually come from.
30 of 50 questions with answers and explanations. Play the quiz
Q 01Petroleum formed mainly from the buried remains of which organisms, cooked by heat and pressure?
Zooplankton and algae
Zooplankton and algae, not dinosaurs, are the raw material of oil. Their remains settled on ancient seabeds and were buried under sediment before heat and pressure slowly cooked them into crude.
Q 02An oil barrel, a standard firmly established by 1872, holds exactly how many US gallons?
42
42 US gallons, about 159 litres, is the oil barrel, though no physical barrel of that size is used to ship crude today. The 55-gallon steel drum people picture is a different container.
Q 03Which smelly additive was put in natural gas after the 1937 New London school explosion in Texas?
Mercaptan
Mercaptan, an odorous compound also called thiol, was added to natural gas within weeks of the blast. Odourless gas had leaked under the school unnoticed, and Texas ordered all supplies odorised.
Q 04What happened to the price of WTI crude for May delivery on 20 April 2020, for the first time ever?
It turned negative
It turned negative, settling near minus $37 a barrel, because the main US storage hub was nearly full and nobody wanted to take delivery. Demand had collapsed during the pandemic.
Q 05Seawise Giant, at 458 metres the longest self-propelled ship ever built, was what kind of vessel?
An oil supertanker
An oil supertanker, Seawise Giant was longer than the Petronas Towers are tall and too deep-laden to use the Suez or Panama canals or the English Channel. It was later renamed Jahre Viking and Knock Nevis.
Q 06OPEC moved to which city in 1965, after Switzerland declined to extend its diplomatic privileges?
Vienna
Vienna has hosted OPEC since 1 September 1965, after five years in Geneva. A decade later, in December 1975, the oil ministers were taken hostage at their Vienna conference.
Q 07Arab oil producers declared the October 1973 embargo on supporters of Israel during which war?
Yom Kippur War
The Yom Kippur War of October 1973 triggered the OAPEC embargo, which targeted any country that had backed Israel at any point in the conflict. Prices soared and petrol queues followed.
Q 08Which oil magnate became America's first billionaire on 28 September 1916?
John D. Rockefeller
John D. Rockefeller crossed the billion-dollar mark in 1916, years after the courts had dismantled his trust. Standard Oil had centralised its decisions in a main office in Cleveland.
Q 09To ship natural gas by sea as LNG, it is chilled into a liquid at roughly what temperature?
About −162 °C
About −162 °C turns natural gas into a liquid that can be shipped at close to atmospheric pressure in insulated tankers. The first such cargo crossed the Atlantic in 1959.
Q 10The word petroleum, Medieval Latin built from petra and oleum, literally means what?
Rock oil
Rock oil is the literal sense: petra is rock and oleum is oil, both borrowed from Greek. The firm that hired Edwin Drake to drill in 1859 began life as the Pennsylvania Rock Oil Company.
Q 11The Nord Stream pipelines, laid to carry Russian gas straight to Western Europe, run under which sea?
Baltic Sea
The Baltic Sea floor carries both Nord Stream pipelines, now disused. The project dates to 1997, when Gazprom and the Finnish oil company Neste formed a joint company to build a line across the sea.
Q 12Piper Alpha, whose 1988 blast killed 167 in the worst ever offshore oil disaster, stood in which sea?
North Sea
The North Sea platform, 120 miles north-east of Aberdeen, was pumping about a tenth of the region's oil and gas when a gas leak ignited on the night of 6 July 1988. The rig was completely destroyed, and 30 of the dead were never found.
Q 13The Athabasca oil sands, one of Earth's biggest heavy-crude deposits, lie in which Canadian province?
Q 21Which country, whose crude output first peaked in 1970, pumped more crude in 2023 than any nation ever had?
United States
The United States pumped a record for any nation in history in 2023, decades after its first peak of 9.64 million barrels a day in 1970. The shale boom reversed what had looked like a permanent decline.
Q 22The 1910 Lakeview Gusher, the largest accidental oil spill in history, erupted in which US state?
California
California's Kern County took the flood: the blowout ran for 18 months and released about 9 million barrels of crude, far more than Deepwater Horizon. The site is now a state historical landmark.
Q 23Retreating Iraqi forces in 1991 set fire to roughly how many Kuwaiti oil wells?
About 700
Alberta
Northeastern Alberta holds the Athabasca deposit, where sand, clay and water are soaked in bitumen, a dense and extremely viscous form of petroleum. Significant bitumen deposits also lie in Kazakhstan, Russia and Venezuela.
Q 14Ratcliffe-on-Soar, the last coal-fired power station operating in the UK, shut down in which year?
2024
2024 ended coal-fired electricity in the country that had pioneered it, when Ratcliffe-on-Soar closed on 30 September. Its last train of coal had been delivered that June.
Q 15Kerosene displaced which brighter-burning lamp fuel from American homes during the 1860s?
Whale oil
Whale oil, especially from sperm whales, had lit indoor lamps outside the gas-piped cities until kerosene undercut it. By the 1860s the American illuminating-oil industry had switched over completely to petroleum.
Q 16What festive nickname do drillers give the stack of valves and fittings fixed atop a completed well?
Christmas tree
Christmas tree is the trade name for the stack of valves, casing spools and fittings that regulates flow from a finished well. Its valves are opened only once the well and its facilities are ready to receive oil or gas.
Q 17Which refining process, patented by Vladimir Shukhov in 1891, turns heavy oil fractions into petrol?
Cracking
Cracking uses heat, pressure and often a catalyst to break long hydrocarbon chains into the shorter molecules petrol needs. In 1924 Sinclair Oil sent a delegation to Shukhov to confirm that Burton's American process matched his patents.
Q 18Crude oil is classed as 'sour' when it contains more than 0.5% by weight of which element?
Sulfur
Sulfur above 0.5% makes a crude sour; below that it is sweet, a label that dates from prospectors who tasted and smelled samples to judge quality. US rules now strictly limit sulfur in petrol and diesel.
Q 19Thomas Newcomen's 1712 atmospheric engine, the first practical steam-powered machine, did what job?
Pump water from mines
Pump water from mines is what Newcomen engines did across Britain and Europe, keeping flooded coal and metal workings dry. It was the first practical device to harness steam to produce mechanical work.
Q 20Which ancient people piped seeping natural gas through bamboo pipelines to boil brine for salt?
The Chinese
The Chinese ran gas from surface seeps along crude bamboo pipes to salt works in Sichuan's Ziliujing district, evaporating brine long before anyone drilled a gas well. The salt, not the gas, was the prize.
About 700 is the usual figure, with estimates running from 605 to 732 wells, plus oil lakes and fire trenches set alight as the army withdrew. The EPA told Congress the army had set fire to or damaged over 700 wells, tanks and refineries.
Q 24Deepwater Horizon, the rig that exploded in 2010 while drilling for BP, was owned by which contractor?
Transocean
Transocean owned the semi-submersible rig and leased it to BP; the blowout at the Macondo prospect on 20 April 2010 killed 11 workers and lit a fireball visible from 40 miles away. Hyundai had built it in South Korea in 2001.
Q 25In which year did the US Supreme Court find Standard Oil an illegal monopoly and order it broken up?
1911
1911 was the year the Supreme Court ruled under the Sherman Act that Jersey Standard had to go, splitting off companies worth $375 million, 57% of its value. Chevron and BP both descend from the pieces.
Q 26Whose exposé 'The History of the Standard Oil Company' helped bring the government's antitrust charge?
Ida Tarbell
Ida Tarbell's reporting laid out the railroad rebates and preferences the trust had used to crush rivals, and the Justice Department sued in November 1906 under the Sherman Act.
Q 27Which two oil companies were formed to develop production at Spindletop after its 1901 gusher?
Gulf Oil and Texaco
Gulf Oil and Texaco, both now folded into Chevron, were start-ups born at Spindletop, where the Lucas gusher blew 100,000 barrels a day for nine days. They grew into serious rivals to Standard Oil.
Q 28Why did a backer style Edwin Drake, who struck oil at Titusville in 1859, as 'Colonel'?
To impress the locals
To impress the locals was the whole idea: Drake had no military experience, but his backer Townsend gave him the title anyway. It stuck for life, and Vincent Price played Colonel Drake in a 1954 film.
Q 29Which nation's state-oil boss coined 'Seven Sisters' for the majors after they refused him membership?
Italy
Italy's Enrico Mattei, head of state-owned Eni, sought membership and was rejected, so he spread the 'Seven Sisters' tag for the majors that then dominated world oil. Eni remains Italy's energy champion.
Q 30Stanolind's 1947 Hugoton gas field experiment, the first hydraulic fracturing, was in which state?
Kansas
Kansas hosted the trial in Grant County, in the state's south-west corner, two years before the first commercially successful treatments in 1949. The technique would take decades to reach shale.