Can someone suggest reading material to help me understand the difference between the above?
Net Revenue Interest, Non-Participating Royalty Interest and Working Interest
I have an “after payout” division order reflecting all of these and a RI.
Prior to payout, I just had the NPRI
I have searched the internet and cannot come up with anything concrete. ’
Welcome to the forum Texserena!
You can find a good article which might help you here
Also, Matt Sands covers some of these topics on his blog here. And he also produces the Mineral Rights Podcast which is very informative and might cover some of this. You can find it here. Look for the tags on the right side of the page. Most of your terms are listed there, and should let you search for your topics.
Hope this helps. Good luck!