Pretty much everyone; the fact that Saudi Arabia and Kuwait has been for years investing large amounts of oil-derived funds in both a wide array of other fields, including alternative energy, was one of the things that created the difference in economic interests between them and Iraq that was among the sources of the disputes which saw their anti-Iran alliance breaking up and Iraq invading Kuwait and threatening Saudi Arabia in 1990.

> The Stone Age didn’t end for lack of stone, and the oil age will end long before the world runs out of oil.