The "Dallas" oil fields have dried up for the Ewing family on TNT. The cable channel decided to cancel the reboot series after three seasons.

"TNT has decided not to renew 'Dallas.' We are extremely proud of the series, which defied expectations by standing as a worthy continuation of the Ewing saga," TNT announced on Oct. 3.

"Dallas" aired its last episode on Sept. 22. The Ewing family lost a son, Christopher (played by Jesse Metcalf) and John Ross (played by Josh Henderson) discovered he had a long-lost sister. The fourth season would have jumped ahead six months.

"We want to thank everyone involved with the show, from the extraordinary cast to the impeccable production team, led by the show's creative forces [executive producers] Cynthia Cidre and Mike Robin. We especially want to thank the people of Dallas for their warm and generous hospitality during the production of the series," TNT said.

Cidre expressed her confidence just two weeks ago that TNT would pick up the series again. She already had a plan for the next 15 episodes.

"We don't have an official pick-up, but [TNT] like us a lot and so they've given us a lot of money to continue, so we still have our offices and our stages and the writers," Cidre told Entertainment Weekly on Sept. 23. "I wrote a 60-page bible with all 15 episodes for next season already, because at a certain point, even before we shot the scene with the car exploding, I had to commit to that idea for season 4."

"Dallas" opened to 7 million viewers when it debuted in 2012, but exited the schedule with only 1.7 million viewers, according to The Hollywood Reporter. The story had picked up with the Ewing family two decades later as the next generation clashed over the family's oil business and fortune.

The show lost its most iconic member when Larry Hagman, who played J.R. Ewing, passed away during filming on the second season. His character also faced his demise on the show when J.R. was shot and killed in a Mexican hotel.