Groundwater refers to water stored beneath the Earth’s surface in aquifers, which has become an increasingly important commodity and trading asset due to growing water scarcity concerns. Groundwater rights, usage permits, and access contracts are traded in various markets, particularly in water-stressed regions. Climate change and population growth have increased groundwater’s economic value.

Trading in groundwater and water rights involves complex legal, environmental, and regulatory considerations that vary significantly by jurisdiction. Water markets allow efficient allocation of scarce water resources while providing price signals for conservation and investment decisions. Understanding groundwater availability and rights structures is crucial for agricultural, industrial, and municipal planning.

Real-world example: California farmers trade groundwater pumping rights at $1,200 per acre-foot during drought conditions, with prices rising as surface water allocations decrease and agricultural demand remains high.