IEA Proposes A-to-F Methane Grades for Oil and Gas Suppliers

Oil and gas buyers comparing suppliers' methane claims could soon work from a single A-to-F scale, after the International Energy Agency proposed grading every production asset twice over — once on upstream methane intensity, once on the quality of the data behind that number.

The framework appears in the IEA's report Building a Voluntary Near-Zero Intensity Methane Marketplace. Two letter grades, both mandatory to publish as a pair. One scores how much methane an asset emits per unit of energy sold; the other scores whether anyone can trust the measurement.

How would the grading work?

The intensity grade divides the energy content of methane emitted during production by the energy content of the oil and gas sold — one formula that works for crude and gas alike. The IEA proposes calling anything below 0.1% "near-zero," with assets under that line eligible for an A or B. Its Global Methane Tracker 2026 used 0.2% as the near-zero benchmark for upstream intensity, so the proposed marketplace tightens the bar.

The first version covers production activities only. Processing, transport and end use sit outside it for now, though the IEA says the framework could later extend along the supply chain.

The data-quality grade weighs how emissions were quantified, how often sites were measured, and what share of sites was covered. It draws on the UN Environment Programme's Oil and Gas Methane Partnership 2.0, known as OGMP 2.0. Independent third-party verification is recommended, and the penalty for skipping it is blunt: an operator reporting intensity without verification receives an F for data quality.

What are the commercial consequences?

The IEA's tracker puts 2025 methane emissions from oil and gas operations at about 81 million metric tons. About three-quarters of that could be abated with existing technology. Nearly 30 million metric tons of upstream emissions could be avoided at no net cost — a striking figure for buyers weighing supplier claims and for operators deciding where to spend abatement capital.

A UN strategy released in August made the same case: fossil fuel methane is the quickest cut available.

For carriers, traders and industrial buyers, a common scale changes procurement. Today, differentiated gas already commands money outside any IEA scheme — Bloom Energy, for example, bought gas certificates from EQT backed by the MiQ and Equitable Origin standards. The IEA says its marketplace would build on such initiatives and stay voluntary, with government incentives left to individual countries.

What remains unresolved?

The report leaves open how a verified asset grade would attach to a marketed volume, a contract or a price. The IEA names that as future work and recommends a working group to set the technical parameters behind the grades.

The physical gas market complicates any answer. Gas from many fields is often mixed in pipelines and storage before it reaches an industrial buyer, which makes any claim tied to a single asset harder to support.

Regulation is moving on a parallel track. Under the EU methane rules, new fossil fuel import contracts must show equivalence with the bloc's standards starting in 2027. A shared grading scale could give importers and their suppliers a common reference as those obligations take hold — meaning the voluntary framework's most immediate traction may come not from buyer goodwill, but from importers scrambling for a way to document compliance.