Option 1 states that shale gas is extensively produced in Saudi Arabia and Kuwait. This statement is incorrect. Shale gas production in Saudi Arabia and Kuwait is not extensive. Shale gas production is more commonly associated with countries like the United States, Canada, and China.

Option 2 states that fracking technology used in the extraction of shale gas requires large quantities of water. This statement is correct. Fracking, or hydraulic fracturing, is a technique used to extract natural gas from shale rock formations. This process involves injecting water, sand, and chemicals at high pressures to fracture the rock and release the gas trapped inside. Water is an essential component of the fracking process and significant quantities are needed to create the fractures and transport the gas to the surface.

Since only option 2 is correct, the correct answer is option 2 - 2 only.