(September 8, 2023, 7:43 AM EDT) -- DENVER — A panel of the 10th Circuit U.S. Court of Appeals has affirmed a lower court and upheld a royalty valuation rule related to hydraulic fracturing production of oil and gas that was implemented by the U.S. Department of the Interior (DOI) in 2016, ruling that the American Petroleum Institute (API) failed to show that the DOI violated the Administrative Procedure Act (APA) when it enacted the rule....