The Osage Agency is under the general supervision of the Superintendent, who is the Line Officer in Charge.  The Osage Agency proudly serves the Osage Nation, administering leasing and development of the 1.45 million-acre Osage Mineral Estate and overseeing more than 135,000 acres of trust and restricted lands in Osage County, Oklahoma.  The Osage Agency has four branches:  Executive Direction, Probate, Realty, and Minerals.  The Branch of Minerals has five divisions:  Lease Management, Accounting, Subsurface Leasing, Enforcement and Lease Compliance, and Field Operations.

Julie Anderson, Acting Superintendent - Osage Agency



The BIA published the Proposed Rule revising the regulations in 25 CFR part 226 in the Federal Register on January 13, 2023.  The public comment period for the Proposed Rule closed on April 7, 2023.  Click here for a copy of the Proposed Rule.  For additional information, please see the Osage Oil & Gas Regulations section below.



American Burying Beetle Guidance

NEPA Documents


  • The regulations governing leasing and development of the Osage Mineral Estate are set forth in 25 C.F.R. part 226. You may access the current regulations online free of charge at .  A copy of the current regulations is also available in the Owners Room at the Osage Agency.
  • The BIA, in consultation with the Osage Nation and Osage Minerals Council, determined that it is appropriate to revise and update the regulations in 25 C.F.R. part 226.  In accordance with such consultation, the BIA initiated the agency rulemaking process. 
  • The BIA published the Proposed Rule revising 25 C.F.R. part 226 in the Federal Register on January 13, 2023.  The BIA held a public meeting on the proposed Rule at the Osage Casino in Skiatook, Oklahoma on February 8, 2023 from 6:30 pm to 9:00 pm.  The BIA held a Tribal consultation with the Osage Nation and Osage Minerals Council on March 30, 2023.  Links to the materials from the public Meeting and Tribal consultation are below. 

          o Tribal Consultation Transcript (March 30, 2023)

          o BIA PowerPoint Presentation - Proposed Rule (February 8, 2023)  

          o ONRR Power Point Presentation - Proposed Rule (February 8, 2023)

          o How to Submit Public Comments on the Proposed Rule (February 8, 2023)

          o Public Meeting Transcript (February 8, 2023)

  • For more information regarding the BIA's current effort to revise the regulations, please click here to visit the DOI Office of Regulatory Affairs and Collaborative Action's website.