On April 5, 2022, the BLM entered into a settlement agreement in the case of Diné Citizens Against Ruining Our Environment, et al., v. U.S. Bureau of Land Management, et al., No. CV 20-673 KG/JHR, 2020 WL 6063337 (D.N.M. Oct. 14, 2020), in which the BLM agreed to review the adequacy of the NEPA analyses underlying the challenged leasing decisions. This supplemental analysis to the Rio Puerco Field Office (RPFO) November 2019 Oil and Gas Lease Sale Environmental Assessment (EA) (DOI-BLM-NMA010-2019-0041-EA) is the result of BLM’s review of the subject NEPA analysis and provides information, data, and/or analyses that are 1) new since work was completed on the Final EA and accompanying supplement (12/30/2020) and 2) substantive and relevant to the BLM’s informed decision making and public disclosure process. This supplemental analysis replaces the analysis of the same issues in the Final EA and the supplemental analysis previously approved in December 2020 and accompanies the Final EA and the associated, new Finding of No Significant Impact (FONSI) and Decision Record (DR). This supplemental analysis and the Final EA, together, constitute the final National Environmental Policy Act (NEPA) documentation for the RPFO November 2019 Competitive Oil and Gas Lease Sale.