205 REQUIRED SUPPLEMENTARY INFORMATION (UNAUDITED) 

Federal Natural Resources Other than Oil and Gas 

Federal Natural Resources Other than Oil and Gas as of September 30, 2022, and 2021 

(In billions of dollars) 2022 2021 

Coal royalties ......................................................................................................... 9.5 8.2 

Total ................................................................................................................... 9.5 8.2 

The ONRR within DOI is responsible for the management and collection of revenues associated with federal coal leases 

which are managed by the BLM within DOI. The ONRR achieves optimal value by ensuring that all natural resource 

revenues are efficiently and accurately collected as well as disbursed to recipients in a timely manner by performing audit and

revenue compliance activities. 

The Mineral Leasing Act of 1920, as amended, and the Mineral Leasing Act for Acquired Lands of 1947, as amended, 

gives DOI the responsibility for coal leasing on approximately 700 million acres of federal mineral estate which includes 570 

million of acres where coal development is allowed. The surface estate of these lands may be under the control of BLM, the 

U.S. Forest Service (within USDA), private or state landowners, or other federal entities. 

Public lands are available for coal leasing after the lands have been evaluated through a multiple-use planning process. 

DOI receives coal leasing revenues from a bonus paid at the time of the lease, an annual rent payment of $3.0 per acre, and 

royalties paid on the value of the coal after it has been mined. The royalty rate for surface-mining methods is 12.5 percent 

and is 8.0 percent for underground mining, and the BLM can approve reduced royalty rates based on maximum economic 

recovery. Regulations that govern BLM’s coal leasing program are contained in Title 43, Groups 3000 and 3400 of the CFR. 

The above table presents the estimated PV of future federal coal royalty receipts on estimated recoverable reserves as of 

September 30, 2022, and 2021. The federal government’s estimated coal royalties have as their basis the DOI’s BLM 

estimates of recoverable reserves. The federal recoverable reserves are then further adjusted to correspond with the effective 

date of the analysis and then are projected over time to simulate a schedule of when the reserves would be produced. Future 

royalties are then calculated by applying future price estimates and effective royalty rates, adjusted for transportation 

allowances and other allowable deductions. The PV of these royalties are then determined by discounting the revenue stream 

back to the effective date at a public discount rate assumed to be equal to the OMB’s estimates of future 30-year Treasury bill

rates. The 30-year rate was chosen because this maturity life most closely approximates the productive lives of the 

recoverable reserves estimates. 

In addition to the coal resources discussed above, the federal government has other natural resources under lease 

contract whereby the lessee is required to pay royalties on the sale of the natural resource. These natural resources include 

soda ash, potash (including muriates of potash and langbeinite phosphate), lead concentrate, copper concentrate, and zinc 

concentrate. Soda ash and potash have the largest estimated PV of future royalties. The federal government also owns coal 

resources and certain other natural resources that are not currently under lease. For additional details on federal natural 

resources-other than oil and gas, refer to the financial statements of DOI.