Oh yeah, we have had another. Fin-de-siecle 19/20th century.
Basically oil barons went bat shit crazy and owned everything and everyone, railways, oil etc. Whilst less pronounced in the US, most "modern" nations brought energy supply into strongly regulated industries, often price controlled
I hope / assume / fear that the (personally identifying) data industry will go the same way
What specific examples of nationally-controlled or regulated oil industries do you have in mind?
As of 1900, the major oil extractors were the United States, Russia, Romania, Austria-Hungary (Bóbrka field), the Dutch East Indies, and Peru. Canada had some operations.
Not on that list: Persia (1908), Venezuela (1914), Mexico (1901), Iraq (1927), Saudi Arabia (1938), Brazil (1930), Kuwait (1938).
Unless you're talking about subsequent development of national oil companies, largely in the 1950s: Saudi Arabia, Brazil, Venezuela, Mexico, etc. See generally Yergin's The Prize.
Basically oil barons went bat shit crazy and owned everything and everyone, railways, oil etc. Whilst less pronounced in the US, most "modern" nations brought energy supply into strongly regulated industries, often price controlled
I hope / assume / fear that the (personally identifying) data industry will go the same way