Before interacting with Tol, you should quicksave just in case and decide how you want to share the XP among your companions. It's a lot, so you might want to just dismiss them and keep all the XP for yourself. Back in Nivarian, talking to Bishop Bareid will give you 200 XP, because he doesn't believe your story but knows you got rid of the crown. You will also receive a Skill Point.
I'm still on the same quests and I saw this part which I think is unnecessary since companion is dismissed as soon as you enter the tomb with Tol.
"You will also receive a Skill Point" on the end is little bit misleading since you get skill point after you talk with Tol, this way people might think (I did) that you get one more skill point after you talk with bishop, so my suggestion is either remove that part or rewrite it so it means you get point after talking with Tol.