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Methane leaks in Mexico

Satellites have detected 599 methane plumes at 92 sites in Mexico since 2021, 222 of them in the 12 months to 1 Sep 2026.

222
Plumes, last 12 months
92
Sites
136,789 kg/h
Largest plume, last 12 months
25 / 31
Notified sites where the operator responded to UNEP
Satellite map of methane plume locations in Mexico
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Biggest plumes in the last 12 months

Detected Site Emission rate Likely operator
19 Aug 2026Oil & gas MEX_S_007 136,789 kg/h Pemex Plausible View
21 Feb 2026Oil & gas MEX_S_007 66,203 kg/h Pemex Plausible View
27 Dec 2025Oil & gas MEX_S_103 64,265 kg/h Pemex Plausible View
19 Aug 2026Oil & gas MEX_S_003 61,124 kg/h Pemex Plausible View
30 Jul 2026Oil & gas MEX_S_007 55,051 kg/h Pemex Plausible View
23 Apr 2026Oil & gas MEX_S_003 54,901 kg/h Pemex Plausible View
31 Jul 2026Oil & gas MEX_S_007 52,331 kg/h Pemex Plausible View
25 Aug 2026Oil & gas MEX_S_007 51,203 kg/h Pemex Plausible View
23 Jul 2026Oil & gas MEX_S_007 49,871 kg/h Pemex Plausible View
5 Jul 2026Oil & gas MEX_S_103 49,182 kg/h Pemex Plausible View

Who operates these sites

Pemex278 plumes

Plumes at sites we attribute to each company. Most attributions here rely on who operates a field or region, not on site-level confirmation; see each site for the evidence. What do confidence levels mean?

Plumes by sector, last 12 months

Oil & gas133
Waste / landfill85
Coal4

Sites that leak most often

Site Plumes, last 12 months Largest detected rate Last seen Likely operator
MEX_S_003Production Offshore · Frequent 40126 total 104,753 kg/h 25 Aug 2026 Pemex Plausible
MEX_S_103Production Offshore · Frequent 2232 total 118,025 kg/h 25 Aug 2026 Pemex Plausible
MEX_S_007Production Offshore · Frequent 1437 total 136,789 kg/h 25 Aug 2026 Pemex Plausible
MEX_S_095Tank batteries · Frequent 1212 total 9,494 kg/h 17 Aug 2026 Pemex Plausible
MEX_S_055Landfill 719 total 7,118 kg/h 26 Aug 2026 Not yet attributed
MEX_S_115Exploration · Frequent 66 total 29,982 kg/h 29 Jul 2026 Pemex Plausible
MEX_S_057Gas Processing Unit · Frequent 66 total 4,365 kg/h 17 Jul 2026 Pemex Plausible
MEX_S_079Landfill 510 total 3,060 kg/h 17 Aug 2026 Not yet attributed
MEX_S_050Landfill · Frequent 412 total 2,515 kg/h 18 Apr 2026 Not yet attributed
MEX_S_019Landfill 49 total 7,796 kg/h 23 May 2026 Not yet attributed
MEX_S_107Landfill · Frequent 47 total 1,813 kg/h 29 May 2026 Not yet attributed
MEX_S_074Landfill 38 total 8,565 kg/h 30 Jan 2026 Not yet attributed
MEX_S_027Landfill · Persistent 36 total 2,677 kg/h 26 Apr 2026 Not yet attributed
MEX_S_100Landfill 35 total 2,758 kg/h 18 Apr 2026 Not yet attributed
MEX_S_089Landfill · Frequent 33 total 1,731 kg/h 26 Aug 2026 Not yet attributed
MEX_S_101O&G source (generic) 33 total 758 kg/h 23 Apr 2026 Pemex Plausible
MEX_S_099Landfill 33 total 3,010 kg/h 28 Feb 2026 Not yet attributed
MEX_S_058Venting shaft 29 total 3,325 kg/h 29 May 2026 Not yet attributed
MEX_S_066Landfill 29 total 9,564 kg/h 21 Feb 2026 Not yet attributed
MEX_S_070Landfill 27 total 3,667 kg/h 28 Feb 2026 Not yet attributed
MEX_S_068Landfill 26 total 2,597 kg/h 21 Feb 2026 Not yet attributed
MEX_S_001Well head 25 total 1,534 kg/h 22 Aug 2026 Pemex Plausible
MEX_S_033Landfill 25 total 2,110 kg/h 18 Apr 2026 Not yet attributed
MEX_S_082Landfill 25 total 3,658 kg/h 9 Apr 2026 Not yet attributed
MEX_S_076Landfill 25 total 3,176 kg/h 19 Dec 2025 Not yet attributed

All 92 sites in Mexico →

Authorities you can notify

Of 31 sites UNEP notified in Mexico, operators responded on 25.

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