https://en.wikipedia.org/wiki/Seven_Sisters_(oil_companies)
Though Q refers to them as Seven Supermajor oil companies, they are, they were also previously known as Seven Sisters.
https://www.aljazeera.com/programmes/specialseries/2013/04/201344105231487582.html
Those videos that appear defunct were good gear.
This too.
http://shodhganga.inflibnet.ac.in/bitstream/10603/16806/7/07_chapter%202.pdf
https://www.ft.com/content/471ae1b8-d001-11db-94cb-000b5df10621
https://seekingalpha.com/article/4160397-oil-supermajors-seven-sisters-battling-top-oil-honors
http://www.catch21.co.uk/2013/05/the-seven-sisters-oil-companies-and-geo-politics
The representatives of the three big companies meet to discuss fixing the price of oil, refining , transporting, drilling zones and marketing selling. The agreement is illegal and none of the government’s that each oil company comes from knows about the meeting. This is how Al-Jazeera’s series on the history of oil opened up last month. The world’s government’s only discovered that the meeting took place 30-years later. It was already established that oil was of strategic importance. The first British regiment to be deployed in the First World War was the second battalion of the Dorset regiment- it was sent to Basra, Iraq to protect the oil fields. The Germans had already built a railway to Istanbul (the Orient Express) and they planned to extend the railway to Baghdad. It would of given them access to the oil markets had it been built.
Prior to the First World War- oil was discovered in Iran and the British established an Anglo-Persian oil company, which the British government later bought out. The oil company has sole access to Iranian oil and took 90% of the profit generated from Iranian oil. They weren’t the only British outfit operating in Iran- the British had set up the Imperial Bank of Persia which controlled the Iranian government’s debt and some spending. The Imperial Bank would later go on to form part of HSBC.
The oil companies post-World War II exploded – the conspiracy of three become a conspiracy of seven. BP, Gulf Oil, Royal Dutch Shell, SoCal, Esso, Mobil and Texaco. Between them they controlled the oil markets and chaos was good for the market. When wars break-out in the Middle East, West Africa, Central Asia and other parts the price of oil increases. In 1951, the Iranian government nationalised it’s on oil which was bad for the seven sisters as BP lost out. However, Prime Minister Mossadeq (who nationalised oil) was overthrown in a British and American coup in 1953. The coup gave the Seven Sisters re-access to Iranian oil.
The Seven Sisters have three enemies’ nationalisation, OPEC and emerging oil companies. When the Organisation of Petroleum Exporting Countries (OPEC) was founded they represented a huge threat to the power of the Seven Sisters. OPEC was a collation of National States which came together in order to regulate the international oil trade. However, OPEC was defeated by the Seven Sisters in 1973 when Saudi Arabia embargoed the United States and Europe on oil for their support of Israel during the 73 war. The embargo led to the Seven Sisters making enormous profits- enough for them to start exploring oil fields outside the Middle East. They found reserves in Latin America and West Africa reducing the influence of Middle Eastern states.