5 versions

CosmeticWhat changed in REPORTED TO SENATEcompared with REFERRED IN SENATE (Dec 16, 2025)

Technical and procedural updates only. The later version, v5, reflects that the bill was reported by the Senate Committee on Energy and Natural Resources without amendment, including a calendar number and updated dates. There are no substantive policy changes to the bill's text.

H.R. 3872119th CongressIntroduced Jun 10, 2025

To amend the Mineral Leasing Act for Acquired Lands to make that Act applicable to hardrock minerals.

Passed HouseEnergyMajor

View bill text

Sponsor: Rep. Fallon, Pat [R-TX-4]
Committees: Energy and Natural Resources Committee (primary)
Last action: Sep 17, 2026

This analysis was written for v4 (REFERRED IN SENATE, Dec 16, 2025). REPORTED TO SENATE changed too little to need its own, so it reuses that one rather than a rewrite. The differences between the two are summarized above. View v4

Bottom line

This bill subjects hardrock mineral extraction on federal acquired lands to a leasing system, aligning it with other leasable minerals and potentially increasing federal revenue and environmental oversight.

What it actually does

This bill expands the scope of the Mineral Leasing Act for Acquired Lands to include hardrock minerals, which were previously not covered by this Act. It defines "hardrock mineral" to include base metals, precious metals, industrial minerals, and gemstones, while explicitly excluding coal, oil, gas, and other specific minerals already covered by other acts. This change would subject hardrock mineral extraction on acquired federal lands to a leasing system rather than the general mining law.

Proponents argue

Proponents would argue that extending the Mineral Leasing Act to hardrock minerals on acquired lands creates a more consistent and rational framework for mineral extraction across federal lands. It could ensure fair returns to taxpayers through royalties and lease payments, provide greater environmental protections through the leasing process, and offer more predictable regulatory oversight compared to the existing general mining law for hardrock minerals.

Opponents contend

Opponents might contend that applying a leasing system to hardrock minerals on acquired lands could stifle domestic mineral production by increasing costs and regulatory burdens for mining companies. They might argue that it could deter investment in exploration and extraction, making the U.S. more reliant on foreign sources for critical minerals, and that the existing general mining law, while different, has its own established regulatory mechanisms.

The bill is very short and straightforward, making it highly accessible for any reader to understand its core purpose quickly.

Section 1(1)(G)

Definition of "Hardrock Mineral"

prominently featuredstraightforward

This section adds a new definition for "hardrock mineral" to the Mineral Leasing Act for Acquired Lands. It specifies that hardrock minerals include deposits like base metals, precious metals, industrial minerals, and gemstones. Crucially, it also explicitly lists minerals that are not considered hardrock minerals for the purpose of this Act, such as coal, oil, gas, sodium, potassium, sulfur, and certain mineral materials already covered by other laws.

GroupImpactMechanismScale

GroupMining companiesImpactClarifies which minerals will be subject to the new leasing framework.MechanismStatutory definition.ScaleAffects all future hardrock mineral operations on acquired lands.

GroupFederal agencies (e.g., Department of the Interior)ImpactProvides clear guidance for regulatory scope.MechanismStatutory definition.ScaleStreamlines regulatory interpretation.

Supporters argue

Supporters argue that a clear definition is essential for effective implementation, preventing ambiguity and ensuring that the new leasing system applies precisely to the intended types of minerals without overlapping with existing regulatory frameworks for other resources.

Critics contend

Opponents might argue that the specific inclusions and exclusions could inadvertently create loopholes or unintended consequences for certain mineral types, or that the definition might be too broad or too narrow for future mineral discoveries.

Tradeoffs

The tension lies in balancing a comprehensive definition that covers all intended hardrock minerals with avoiding overlap or conflict with other mineral resource laws.

Section 1(2)

Expansion of Leasable Minerals

prominently featuredstraightforward

This provision directly amends Section 3 of the Mineral Leasing Act for Acquired Lands to add "hardrock minerals" to the list of minerals that can be leased on acquired federal lands. Previously, this section only covered minerals like coal, oil, gas, sodium, and sulfur. This change is the core operative effect of the bill, bringing hardrock minerals under the federal leasing system.

About this analysis. AI-Generated from the official bill text and available committee reports. Gaps in available data are noted explicitly. Verify important details with the official Congress.gov record.

CosmeticWhat changed in REPORTED TO SENATEcompared with REFERRED IN SENATE (Dec 16, 2025)

H.R. 3872119th CongressIntroduced Jun 10, 2025

To amend the Mineral Leasing Act for Acquired Lands to make that Act applicable to hardrock minerals.

Passed HouseEnergyMajor

View bill text

Sponsor: Rep. Fallon, Pat [R-TX-4]
Committees: Energy and Natural Resources Committee (primary)
Last action: Sep 17, 2026

Bottom line

What it actually does

Proponents argue

Opponents contend

The bill is very short and straightforward, making it highly accessible for any reader to understand its core purpose quickly.

Section 1(1)(G)

Definition of "Hardrock Mineral"

prominently featuredstraightforward

GroupImpactMechanismScale

GroupMining companiesImpactClarifies which minerals will be subject to the new leasing framework.MechanismStatutory definition.ScaleAffects all future hardrock mineral operations on acquired lands.

GroupFederal agencies (e.g., Department of the Interior)ImpactProvides clear guidance for regulatory scope.MechanismStatutory definition.ScaleStreamlines regulatory interpretation.

Supporters argue

Critics contend

Tradeoffs

The tension lies in balancing a comprehensive definition that covers all intended hardrock minerals with avoiding overlap or conflict with other mineral resource laws.

Section 1(2)

Expansion of Leasable Minerals

prominently featuredstraightforward