Home / Agencies / Interior / 2026-04135
Final Rule

Offshore Downhole Commingling Regulatory Updates

Agency
Interior
Document Number
2026-04135
Published
March 2, 2026
Effective Date
March 2, 2026

Abstract

The Department of the Interior (DOI or Department), through the Bureau of Safety and Environmental Enforcement (BSEE), is revising the Outer Continental Shelf (OCS) downhole commingling regulations consistent with the One Big Beautiful Bill Act (OBBB). These revisions update the regulations to ensure consistency with the OBBB when BSEE reviews a request for downhole commingling.

Federal Register Source

This document is published by the Office of the Federal Register, National Archives and Records Administration. Access the full regulatory text, preamble, and docket comments below.

View Full Text on FederalRegister.gov →

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Frequently Asked Questions

What is the 2026-04135 Federal Register document?
Document 2026-04135 is a Final Rule published by the Department of Interior in the Federal Register on March 2, 2026, with an effective date of March 2, 2026. The Department of the Interior (DOI or Department), through the Bureau of Safety and Environmental Enforcement (BSEE), is revising the Outer Continental Shelf (OCS) downhole commingling regulations consistent with the One Big Beautiful Bill Act (OBBB). These revisions update the regulations to ensure consistency with the OBBB when BSEE reviews a request for downhole commingling. View the original at https://www.federalregister.gov/documents/2026/03/02/2026-04135/offshore-downhole-commingling-regulatory-updates.
Is document 2026-04135 an economically significant rule?
No. Document 2026-04135 is not classified as economically significant under Executive Order 12866. Economically significant rules require OIRA review and are estimated to have impacts of $100 million or more per year.

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