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World and society · ranked by Annual CO₂ emissions from oil

Countries with the highest CO₂ emissions from oil

50 ranked · updated 2026-10-29
Number oneUnited States2,189.16 million tonnes
Ranking by Annual CO₂ emissions from oil
#NameAnnual CO₂ emissions from oilChange
12,189.16 million tonnesnew
21,705.39 million tonnesnew
3747.33 million tonnesnew
4451.46 million tonnesnew
5437.89 million tonnesnew
6353.59 million tonnesnew
7323.86 million tonnesnew
8244.57 million tonnesnew
9243.18 million tonnesnew
10232.96 million tonnesnew
Show positions 11–50
11219.37 million tonnesnew
12213.73 million tonnesnew
13176.14 million tonnesnew
14170.69 million tonnesnew
15159.6 million tonnesnew
16154.36 million tonnesnew
17147.53 million tonnesnew
18145.79 million tonnesnew
19139.47 million tonnesnew
20136.3 million tonnesnew
21112.97 million tonnesnew
22105.34 million tonnesnew
2392.02 million tonnesnew
2484 million tonnesnew
2579.1 million tonnesnew
2672.46 million tonnesnew
2772.46 million tonnesnew
2869.42 million tonnesnew
2968.93 million tonnesnew
3068.14 million tonnesnew
3165.56 million tonnesnew
3264.1 million tonnesnew
3359.74 million tonnesnew
3456.23 million tonnesnew
3555.09 million tonnesnew
3654.43 million tonnesnew
3751.6 million tonnesnew
3842.09 million tonnesnew
3941.96 million tonnesnew
4040.52 million tonnesnew
4139.9 million tonnesnew
4239.52 million tonnesnew
4339.06 million tonnesnew
4436.87 million tonnesnew
4534.46 million tonnesnew
4633.38 million tonnesnew
4731.82 million tonnesnew
4831.48 million tonnesnew
4928.89 million tonnesnew
5027.15 million tonnesnew

History

How the top 10 has moved

Positions of today's top 10 across every published snapshot.

History appears once this ranking has at least two published snapshots.

About this ranking

Countries with the highest CO₂ emissions from oil, explained

Countries with the highest CO₂ emissions from oil is a live ranking of the top 50 entries in world and society by Annual CO₂ emissions from oil, built from public data published by Our World in Data. It was last refreshed on 2026-10-29. This is the first published snapshot; from the next refresh onwards the page will also show movers, new entries and a rank history chart.

United States currently holds #1 with 2,189.16 million tonnes. China is second with 1,705.39 million tonnes, which puts the leader 28% ahead. India completes the top three with 747.33 million tonnes. Together the top three account for about 67% of the combined top-10 total, which gives a quick sense of how concentrated this ranking is.

How it is measured: Annual CO₂ emissions from oil. Our World in Data chart "annual-co2-oil"; most recent year per country within the last five years of data, regional aggregates excluded. Caveat: Years differ by country; the chart page documents the original source and its limitations. Data from Our World in Data (CC BY 4.0) and the sources it cites. The full top 50 is on this page, with positions 11 to 50 one click away, and each entry links to its own profile showing every ranking it appears in.

Use this page to check who is number one right now, compare any two entries head to head, or test yourself with the quiz, which asks you to name all ten in three minutes. Year-end archives are available for 2026, freezing the ranking as it stood at the close of each year. Top10Earth never estimates or edits a value: each number is fetched from its source, hashed, stored and ranked by software, then checked by a quality gate before it is published. If a refresh fails the gate, the previous snapshot stays live and the problem is reviewed by a person.

Frequently asked questions

Who is #1 in Countries with the highest CO₂ emissions from oil?
United States is #1 with 2,189.16 million tonnes, as of 2026-10-29. China is #2.
How is Countries with the highest CO₂ emissions from oil ranked?
By Annual CO₂ emissions from oil. Annual CO₂ emissions from oil. Our World in Data chart "annual-co2-oil"; most recent year per country within the last five years of data, regional aggregates excluded.
How often is this ranking updated?
It refreshes on a fixed schedule from Our World in Data. The latest snapshot was captured on 2026-10-29.
Where does the data come from?
Our World in Data. Data from Our World in Data (CC BY 4.0) and the sources it cites. The raw payload for every refresh is stored unchanged so any number can be traced back.