Crews work to stop a gas leak at a relief well at the Aliso Canyon facility in Los Angeles in December 2015. A federal interagency task force has released dozens of pipeline safety recommendations to prevent another leak.
Protesters wear gas masks at a hearing over a leak at the Southern California Gas Co.'s Aliso Canyon Storage Facility near the Porter Ranch section of Los Angeles. On Tuesday, the utility pleaded no contest to a misdemeanor and agreed to pay $4 million to settle the case.
A woman walks to her home in Porter Ranch, Calif., last month, after state regulatory officials announced that SoCalGas Co.'s leaking well had finally been plugged.
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