Let’s see it this way. Compared to unconventional oil, conventional oil is a drop in the bucket. Compared to unconventional gas (shale), all oil is a drop in the bucket. And compared to hydrates, shale is a drop in the bucket. And we are nowhere close to exhaust conventional oil. There is an awful more than meets the eye. Methane Hydrates can cleanly fuel the wold for hundreds of years.
Gas hydrates are also known as methane hydrates and are cage-structured lattices of water molecules which contains methane, the foremost component of natural gas.