According to The Hollywood Reporter, HBO is getting an itchy trigger finger for another season of its Western drama Deadwood.

Although the third season of the series isn't rolling out until June, sources say the premium cable service is close to greenlighting a fourth season. HBO declined comment.

Sources suggested HBO chairman and CEO Chris Albrecht was encouraged to move ahead with Deadwood after seeing progress made on production of Season 3. As many as eight of the 12 episodes ordered already have been shot.

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