He’s turned his booze into “Ocean’s” of cash.

George Clooney has inked a potential deal to sell his tequila company for $1 billion — more money than his last four films grossed, combined.

The “Ocean’s 11” star, 56, and his two partners, Rande Gerber and Michael Meldman, have entered into a “definitive agreement” with British alcoholic-beverage company Diageo for ownership of the ultra-premium Casamigos tequila brand.

Diageo announced in a press release Wednesday that they had purchased the company for $700 million, with the “further potential” for an additional $300 million — should the tequila keep selling over the next 10 years.

“We created Casamigos Tequila four years ago for us to drink personally, and selling it for $1 billion is something we never could have imagined,” Gerber told The Post.

“We remain committed to our brand and look forward to our future with Diageo and continuing our work with our dedicated and passionate Casamigos team,” he said.

Clooney and Gerber claim they accidentally came up with the idea of creating a “hangover-free” tequila while drinking together in Mexico.

The actor and ex-nightclub owner had met 30 years ago while Clooney was filming a movie in New York.

“As you do in Mexico, we would drink a lot of tequila,” Gerber told Business Insider earlier this year.

“We’d go out to bars and restaurants and bartenders would recommend them. Some were good, some not so good, and some expensive. There came a point where George turned to me and said, ‘Why don’t we create one that’s perfect for us?’ ”

But it couldn’t be any tequila — it had to be one fit for a movie star.

“We wanted one that didn’t burn going down, that was super smooth, and had the right flavor profile,” Gerber said. “One that we didn’t have to mix — typically, we drink it straight or on the rocks — that we could drink all day long and not be hungover in the morning.”

Clooney and Gerber began bottling their booze and distributing it solely to relatives and pals out of their homes in Casamigos, which translates to “house of friends.”

The pair later brought Meldman into the fold and went public in 2013.

Additional reporting by Ian Mohr