Methane Leaks
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Oil & gas · Not seen recently

Methane emitter DZA_S_331

O&G source (generic) in Algeria. Satellites have detected 16 methane plumes here since 31 Mar 2024, most recently on 10 Oct 2025.

16
Plumes
2
Plumes, last 12 months
1,085 kg/h
Largest detected rate
396 kg/h
Typical (median) rate
Satellite map of methane plume locations in DZA_S_331
Map imagery © Mapbox © OpenStreetMap © MaxarOpen the interactive map →
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Who likely operates it

Sonatrach Plausible

Evidence

  • State company Sonatrach operates or co-operates nearly all Algerian fields and pipelines.

What do confidence levels mean?

Write to the operator

Response so far

Source type
O&G source (generic)
UNEP notified
No
Operator responded to UNEP
Not applicable
First seen
31 Mar 2024
Last seen
10 Oct 2025
Coordinates
31.78732, 5.94353 · Open in Google Maps (satellite)

Plume history

10 Oct 2025: 893 kg/h2 Oct 2025: 115 kg/h26 Jul 2025: 327 kg/h22 Jul 2025: 264 kg/h19 Jun 2025: 497 kg/h7 Jun 2025: 50 kg/h22 Apr 2025: 360 kg/h26 Mar 2025: 378 kg/h12 Feb 2025: 413 kg/h31 Jan 2025: 502 kg/h24 Dec 2024: 638 kg/h27 Oct 2024: 334 kg/h30 Aug 2024: 1,085 kg/h18 Aug 2024: 730 kg/h6 Aug 2024: 177 kg/h31 Mar 2024: 414 kg/h 31 Mar 2024 10 Oct 2025 1,085 kg/h
Emission rate of each detected plume over time
Detected Emission rate Likely operator
10 Oct 2025Oil & gas 893 kg/h Sonatrach Plausible View
2 Oct 2025Oil & gas 115 kg/h Sonatrach Plausible View
26 Jul 2025Oil & gas 327 kg/h Sonatrach Plausible View
22 Jul 2025Oil & gas 264 kg/h Sonatrach Plausible View
19 Jun 2025Oil & gas 497 kg/h Sonatrach Plausible View
7 Jun 2025Oil & gas 50 kg/h Sonatrach Plausible View
22 Apr 2025Oil & gas 360 kg/h Sonatrach Plausible View
26 Mar 2025Oil & gas 378 kg/h Sonatrach Plausible View
12 Feb 2025Oil & gas 413 kg/h Sonatrach Plausible View
31 Jan 2025Oil & gas 502 kg/h Sonatrach Plausible View
24 Dec 2024Oil & gas 638 kg/h Sonatrach Plausible View
27 Oct 2024Oil & gas 334 kg/h Sonatrach Plausible View
30 Aug 2024Oil & gas 1,085 kg/h Sonatrach Plausible View
18 Aug 2024Oil & gas 730 kg/h Sonatrach Plausible View
6 Aug 2024Oil & gas 177 kg/h Sonatrach Plausible View
31 Mar 2024Oil & gas 414 kg/h Sonatrach Plausible View

Authorities you can notify

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