Geothermal energy resources are found in geological systems that must be well understood through geological, geochemical, and geophysical investigation (before drilling and testing). The development of these resources must be carefully managed (e.g., through reinjection) to ensure that unacceptable decreases in pressure (which may cause subsidence) and temperature do not occur. Geothermal fluid can be used for production of electricity or for other “direct” uses. Community engagement and partnership has been demonstrated to be a crucial factor in successful projects. Future developments in geothermal energy may include technological advancements to reduce drilling cost, the development of enhanced geothermal systems, or further coproduction of geothermal energy from oil and gas reservoirs.