The world’s biggest oil exporter is ramping up efforts to develop natural gas with plans for a 15-fold boost in output from unconventional deposits of the fuel.

Saudi Aramco is building facilities to tap shale gas in the kingdom’s oil-rich eastern region and is making “a lot of progress” toward this goal, CEO Amin Nasser told reporters in Dammam, Saudi Arabia. Plans include a plant to desalinate seawater that Aramco can then inject underground to frack for gas.

“We are looking to take our unconventional gas within the next 10 years to 3 billion standard cubic feet a day of sales gas,” Nasser said on Sunday.

Aramco currently produces more than 190 million cubic feet of unconventional gas daily, all of it in the remote north.

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