Here are the materials in In the Matter of Vallecito Gas LLC (Morton v. Yonkers):
This is a Chapter 11 bankruptcy trustee who was trying to void overriding royalty interests purchased by third parties from a Navajo Tribe, but without approval by the Navajo Nation as per the Navajo Code. The Court agreed with the Bankruptcy Court that the Trustee could not raise the lack of Navajo approval as an impediment to the validity of the underlying transfer of the overriding royalty interests. Although the Navajo Code requires the approval from the Navajo Nation for such transfers, the Court reasoned that because the Navajo Code does not serve to protect the Trustee’s interests, but rather to protect the Navajo Nation from exploitation, the Trustee was not permitted to raise the lack of approval.
Turtle Talk 