The state’s chief regulator for oil and gas fields issued an emergency order to Southern California Gas Co. on Wednesday, demanding the Los Angeles company submit plans to seal a leak, The Los Angeles Daily News reports.

The natural gas leak was discovered Oct. 23 in Aliso Canyon.

State Oil and Gas Supervisor Steven Bohlen ordered SoCalGas to provide all testing results and data and asked for a written plan to stop the leak and, if necessary, a plan to complete a relief well, the newspaper reports.