By Shale Markets · Monday, November 9, 2026 · 5 min read

EPA's 210-Million-Barrel Methane Rollback Comes Without the Math to Back It Up

Original illustration created for Shale Markets.

Marginal Wells Get Their Own Category

The rulemaking, published in the Federal Register on October 29 under Docket ID No. EPA-HQ-OAR-2025-0163, touches two programs under Clean Air Act Section 111: the New Source Performance Standards in Subpart OOOOb and the existing-source emission guidelines in Subpart OOOOc, per Beveridge & Diamond's alert. It would rescind the Super Emitter Program across Subparts OOOO, OOOOa, OOOOb and OOOOc, a provision that currently lets third-party monitors report leaks of 100 kilograms per hour or more, Holland & Knight noted.

The co-proposed subcategory would split well sites into "marginal" — 15 boe/d or less — and "conventional," according to Holland & Knight's alert. Pairing that distinction with the flaring change matters because the agency is simultaneously replacing the existing ban on routine flaring of associated gas with a standard built around what Duane Morris, in a November 4 client alert, described as "efficient" flaring rather than a requirement to route gas to a sales line. Holland & Knight's alert confirms the same shift away from sales-line routing as the "best system of emission reduction." Engineering News-Record, in a November 5 tally of five major changes in the proposal, also reported EPA plans to lower the required flare combustion efficiency standard; the desk could not confirm the current baseline figure against the Federal Register text, so the magnitude of that change is not established here.

Zeldin Previewed the Plan in Santa Fe Three Weeks Earlier

Zeldin laid out the direction of the rulemaking on October 7 at the New Mexico Oil and Gas Association's annual meeting in Santa Fe, telling the group the 2024 rules were "costly and unworkable," according to Oil & Gas Journal's October 13 account. The formal proposal carries that framing forward: the EPA states it "very likely underestimated costs" in the original 2024 rule because actual compliance costs ran higher than projected, a line that appears in a November 5 summary from Legis1. The desk could not independently locate this language in the Federal Register notice itself, so it is attributed here to Legis1's account rather than to the agency document directly.

The rulemaking is the second phase of a broader reconsideration Zeldin announced on March 12, 2025, under the banner of "unleashing energy dominance," per the EPA's own regulatory action page updated November 5. A first round of changes, addressing temporary flaring and heating-value monitoring requirements, was finalized on April 6, 2026, according to Duane Morris's November 4 alert.

The Savings Number Has No Public Backup Yet

Every headline figure attached to this proposal traces back to the same EPA release: $45 billion in savings, 210 million barrels of additional oil, 1.41 Tcf of additional gas. Secretary of Energy Chris Wright called the package a "commonsense effort... to unleash American energy dominance" in the EPA's October 29 compilation of reaction statements.

Duane Morris's November 4 alert states plainly that the EPA has not yet released the full supporting cost analysis for the $45 billion savings claim. The agency's own modeling, meanwhile, projects the proposed changes would add 60 million short tons of methane emissions between 2027 and 2050, according to Legis1's November 5 report.

Small Operators Get a Separate, Smaller Number

A narrower estimate comes from the Small Business Administration's Office of Advocacy, which put small-business savings at between $2.7 billion and $2.8 billion annually from 2027 through 2050, in a November 2 release. That release also describes a technical change to the "No Identifiable Emissions" standard for covers and closed-vent systems, splitting it into separate design and operational requirements so operators can make repairs without automatically triggering a violation.

Dorsey & Whitney, in a November 2 client note, called the rulemaking "the latest swing of the regulatory pendulum" and pointed out that EPA is not using this proceeding to challenge its underlying authority to regulate methane under the Clean Air Act. The agency is narrowing the scope of what the 2024 rule required, not contesting whether it can require anything at all.

Comment Period Closes December 16

Public comments on the proposed rule are due by December 16, 2026, Van Ness Feldman noted in a November 2 summary. EPA has also scheduled a virtual public hearing for November 16, 2026, with a registration deadline of November 10, according to the SBA Office of Advocacy's November 2 release.

No operator or services firm has yet put a per-well cost figure on the marginal-well carve-out or the flaring change in public filings or statements reviewed for this report; the comment window running through mid-December is where that figure is most likely to surface first.