Santa Clara County burglary occurred even though two guards were on duty, 16 months after sniper attack.
The utility faces 27 charges for violating a safety act and one for obstructing justice.
San Bruno officials want commission president fired after learning of email exchanges with company.
Power companies will be paying $750 million in rebates to consumers under cap-and-trade program.
September 2010 explosion killed eight people and destroyed 38 homes in bedroom community.
Under fire for failing to enforce pipeline safety laws, the PUC issues new guidelines and fines.
Utility says money will come from shareholders, not ratepayers, in settlements with 347 victims of blast.