CA AB972

Establishes a moratorium on approving new wells using hydraulic fracturing until the Division of Oil, Gas, and Geothermal Resources adopts comprehensive regulations governing the practice.

Defines "hydraulic fracturing" as pressurized injection of hydraulic fracturing fluid and proppant into underground geologic formations to enhance oil or gas production, with alternate terms including "fracking" and "hydrofracking."

Defines supporting terms: "hydraulic fracturing fluid" (base fluid mixed with chemical additives and proppants), "base fluid" (continuous phase liquid or gas), and "proppants" (materials preventing fracture closure).

Requires well operators to indicate in their notice of intention to drill whether a hydraulic fracturing treatment will be used or is planned to be used.

Mandates that hydraulic fracturing regulations must be comprehensive and ensure the integrity of wells and well casing are maintained.