Pod of Whales (1 Viewer)

I have just seen a pod of whales go past the oil rig I am currently working on offshore Norway.

The nearest was probably 400m, the furthest 800m. Roughly 16 animals in pairs and threes swimming side by side.

Had good views but only ever saw a largish dorsal fin (defo not orca size though) and the area of back directly infront of the fin and again between the fin and tail. Never saw either tail flukes or the head of any of the animals. Colour very dark grey, almost black, size, very tricky to say with no reference point but 10m+ would be my best guess.

Any idea?

Size and action sound like Minke, but the dorsal would appear smaller I think.

sounds more like Pilot Whale?
where the dorsals kinda floppy/smurfs hat profile? bodies very dark black?

I have googled a few ID charts and am reasonably confident (80%) that they were pilot whales, a close call with minke whale though. . The dorsal fins were broad based and the bodies appeared near enough black. As I thought possible my size estimatiom must have been out.