- You may be looking for Antalin.
Antalin's ocean world, more often referred to as simply Antalin, was a planet covered entirely in water, with no islands, continents, or any land masses. There seemed to be no native civilisations, but marine life included fish.
The planet was discovered and hastily surveyed 50 years prior to c.4000, located in human space but close to the Daleks' border. At some point, most likely c.4000, the Daleks built a drilling rig on Antalin to gain new supplies for their war efforts, but the rig was destroyed by Space Security Service agent Dryn Faber. (PROSE: War of the Daleks)
Behind the scenes
- A planet called Antalin is also mentioned in War of the Daleks as the planet the Daleks used as a decoy for Skaro. The novel's author, John Peel, stated on the newsgroup rec.arts.drwho that this was because he misread his notes. He also said that the two Antalins are different worlds.