In a recent post , Antonio Turiel proposed that the global peak of diesel fuel production was reached three years ago, in 2015. Turiel’s idea is especially interesting since it takes into account the fact that what we call “oil” is actually a wide variety of liquids of different characteristics. The current boom of the extraction of tight oil (known also as “shale oil”) in the United States has avoided, so far, the decline of the total volume of oil produced worldwide (“peak oil”). Shale oil has changed a lot of things in the oil industry, but it couldn’t avoid the decline of conventional oil . That, in turn, had consequences: shale oil is light oil, not easily converted to the kind of fuel (diesel) which is the most important transportation fuel, nowadays. That seems to have forced the oil industry into converting more and more “heavy” oil into […]