I'm a storyteller, and yes the techniques are more or less the same. By telling the same story over and over again, you gain insight of when people are going to laugh, when they are going to keep quiet (you can even feel the tension sometimes), and the story gets better and better with time, and is more and more fixed in its delivery.
You can work as hard as you want beforehand, your work on a story is not done until you told it dozen of times to a real, live audience.
Still impressed by standup comedians, as they have a way smaller error margin than us.
I'm in France, so my answer might not apply to where you live, but we typically have yearly festivals, monthly open mics in theaters, plus the occasional one-shot in theaters (where a famous storyteller is invited for his new/famous set of stories).
We are considered as actors/comedian and are paid accordingly (or not at all, for open mics, obviously).
My experience with oral storytelling has been through festivals dedicated to it. This[1] is a list of storytelling festivals around the US and some other countries.
You can work as hard as you want beforehand, your work on a story is not done until you told it dozen of times to a real, live audience.
Still impressed by standup comedians, as they have a way smaller error margin than us.