Somewhere out there is a recording of Billy Bob Thornton and Johnny Cash playing Cash’s 1958 song “I Still Miss Someone” together. In a new interview with The Guardian, Thornton revealed that he collaborated with Cash on the tune, but it has never been released.

Landman' Star Billy Bob Thornton On Andy Garcia's Arrival As Galino, Demi Moore's Future & Those Crazy Phone Calls From Angela

The actor, who plays stern oil executive Tommy Norris, even provided an timeframe for when the cast may return for round two if all goes well.

The first season of Landman wrapped up with a satisfying conclusion —but an ominous final line from Tommy Norris (played by Billy Bob Thornton). After surviving a brutal beating from the cartel, Tommy returns home. He walks outside to smoke, and sees a coyote. He tells the coyote, “You better run buddy. They kill coyotes around here.”

Taylor Sheridan’s latest show, “Landman,” closed out its debut season on Sunday night, and many fans are already wondering what's next.

The actor speaks with The Hollywood Reporter about his oil tycoon's ending, the viral Jerry Jones scene and lessons learned for when the show likely returns: "There’s going to be a lot of wreckage to clean up.