Here is the order in Penobscot Nation v. Frey:
2020.04.08 ORDER Granting Mot Rehr’g En Banc
En banc stage briefs are here.
The petitions, filed two years ago, are here.
The court’s order requesting a response is here: ca1-order-2.pdf
Here is the state’s response and the petitioners’ reply briefs:
Case page here.