Cal. Pen. Code § 593c
Every person who willfully and maliciously breaks, digs up, obstructs, interferes with, removes or injures any pipe or main or hazardous liquid pipeline erected, operated, or maintained for the purpose of transporting, conveying or distributing gas or other hazardous liquids for light, heat, power or any other purpose, or any part thereof, or any valve, meter, holder, compressor, machinery, appurtenance, equipment or apparatus connected with any such main or pipeline, or used in connection with or affecting the operation thereof or the conveying of gas or hazardous liquid therethrough, or shuts off, removes, obstructs, injures, or in any way interferes with any valve or fitting installed on, connected to, or operated in connection with any such main or pipeline, or controlling or affecting the flow of gas or hazardous liquid through any such main or pipeline, is guilty of a felony.
Ca. Pen. Code § 593c