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Natural Gas STAR Program

Methane Challenge Program Accomplishments

This page summarizes data reported to the Methane Challenge program, including the methane reductions achieved by Partners through voluntary action (during participation in the Methane Challenge Program). On this page you will also find the full data download for all Methane Challenge Partners, across all reporting years to-date.


Methane Challenge Program Partners make ambitious commitments through the program's two commitment options: the Best Management Practice Commitment Option and the ONE Future Emissions Intensity Commitment Option (learn more here).

Partner Profile Pages

After a full year of participation in the program, each Partner submits detailed annual reports with non-confidential data to provide context for their participation in the Program and to facilitate annual tracking of their commitment progress. All data submitted to the program is published to the Methane Challenge website. Company-specific information can be found on the individual Partner Profile Pages, accessible from the Methane Challenge Partner list.

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Methane Challenge 2017 Accomplishments

In fall of 2018, Best Management Practice partners submitted their first report detailing activity data, methane emissions, and voluntary actions to reduce methane emissions in 2017.

2017 Highlights

  • Distribution segment companies reported replacement of nearly 1,300 miles of cast iron pipelines and more than 2,000 miles of unprotected steel pipelines
  • Transmission segment partners reduced methane emissions from nearly 300 planned blowdowns
  • Partner companies provided details on over 17,800 excavation damages

2017 BMP Reporting Summary Results

Commitment Options Number of Partners Reported Number of Facilities Covered Estimated Voluntary Emission Reductions (metric tons carbon dioxide equivalent)
Pneumatic Controllers 1 12 0
Tanks 0 0 0
Reciprocating Compressors 4 23 7,821
Centrifugal Compressors 0 0 0
Transmission Pipeline Blowdowns 4 4 637,595
Distribution Mains 28 61 232,553
Distribution Services 13 32 78,131
Distribution Pipeline Blowdowns 1 2 110
Excavation Damages 19 39 N/A





*Note that the Number of Partners and the Number of Facilities in the Total row will not equal the sum of the rows in those columns as many partners/facilities report on multiple emission sources.

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Methane Challenge Data Download

Download the full Methane Challenge data set below. The data set was most recently published in August 2019 and contains 2017 data reported by BMP partners, as well as 2016 data submitted optionally by some partners. Note that emission reductions are reported in metric tons of methane. To convert these data to metric tons of carbon dioxide equivalent (as in the table above), metric tons of methane are multiplied by the global warming potential for methane--25.

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Methane Challenge Data Dictionary

Please refer to the Methane Challenge Data Dictionary for assistance in using the data download spreadsheet.