Oil and gas are used for energy. If it takes more energy to create them, than you get out of them it’s worthless. If they are in the earth, already full of energy, then it is worth it to spend a bit of energy to get them out of the earth.
Diamonds take energy to make, but their price doesn’t depend on how much energy you can get out of them, instead it depends on how pretty they are (+marketing).
Latest Answers