Marcellus Shale Coalition Promotes Fact-Based Clarity Ahead of and During Pennsylvania Methane Hearings

      The Marcellus Shale Coalition notes that Pennsylvania’s methane hearings (that happened this week) will likely generate headlines but likely not generate clarity, which its recent blog post, Separating Methane Facts from Fiction, seeks to provide. The coalition is an oil & gas industry advocacy group local to the Marcellus region of mainly Pennsylvania and smaller pieces of West Virginia and Ohio. The group notes that they are committed to educating policymakers, especially as less educated oppositional rhetoric is often thrown at the industry.

     The post starts with basic facts: 1) agriculture is responsible for one-third of human-caused methane emissions, twice as much as natural gas system emissions, which make up 17%. 2) Total U.S. human-caused methane emissions are down 19% since 1991, during a period when natural gas production doubled. 3) Natural sources such as wetlands are responsible for one-third of total methane emissions. They don’t mention biogenic waste emissions from landfills, which also contribute more than natural gas systems to human-caused methane emissions.

     They link to a report by the Appalachian Methane Initiative, which states that the Appalachian Basin consistently has the lowest methane emissions intensity among U.S. oil & gas basins. The initiative involves “independent monitoring providers, technical consultants, and top-tier universities.” The most recent study utilized “nearly 17,000 unique surveyed sites measurements across approximately 31,800 square miles (82,360 square kilometers) of the Appalachian Basin.” The key findings of that report, shown below, are interesting. Two things that stand out for me are that 1) conventional wells make up 2% of gas production, but two-thirds of methane emissions in the basin, and 2) 80% of large satellite-detected methane plumes are from coal mining operations.

     They note that the state of Pennsylvania has a comprehensive methane regulatory framework that requires:

 “…leak detection and repair (LDAR), routine inspections, and detailed monitoring across well sites and compressor stations. Operators must conduct regular inspections and submit emissions and operational data, ensuring transparency through publicly accessible compliance records and state oversight.”

     Next, they address the “dramatic claims” that often occur in the media about methane emissions. They consider the use of the term “super-emitter,” which refers to a single point with a high leaking rate. Of course, super-emitters may be completely repaired after they are identified. They note that some high leak rates are associated with maintenance or ensuring safety, and may be:

“…based on momentary snapshots – capturing short-duration, controlled events like maintenance or safety procedures.”

     Snapshots do not capture the whole story, and if those snapshots are associated with maintenance events, they are very temporary, not continuous leaks.

“Emission estimates depend heavily on weather conditions, site characteristics, and verification from additional data sources. Without that, conclusions can be off the mark.”

“Responsible analysis draws from multiple inputs – ground monitoring, aerial surveys, and operational data – not a single point in time.”

     They stress that the real story is based on data, not rhetoric.

     The Pennsylvania methane hearings included presentations from the PADEP, the Sierra Club, Environmental Defense Fund (which has its own methane-detecting satellites), Earthworks, Clean Air Council, the Pennsylvania Independent Oil and Gas Association, and the Marcellus Shale Coalition.

     Two graphs of methane emissions and methane emissions intensity, by oil & gas basin, from the Marcellus Shale Coalition, are shown below, followed by a graphic of unconventional (shale/"fracked horizontal wells") oil & gas emissions versus emissions from cows.

     Below is a graphic of methane plumes by

 company, compiled by Earthworks.  

 

References:

 

Separating Methane Facts from Fiction. Marcellus Shale Coalition Blog. April 15, 2026. Separating Methane Facts from Fiction – Marcellus Shale Coalition

Appalachian Basin Once Again Confirmed as Lowest Methane Intensity Major Oil and Gas Basin in the United States. The Appalachian Methane Initiative. March 20, 2026. Appalachian Basin Once Again Confirmed as Lowest Methane Intensity Major Oil and Gas Basin in the United States

House Environmental Resources & Natural Protection Committee Public Hearing. Commonwealth of Pennsylvania. April 21, 2026. Testimony on Methane Emission from Oil and Gas.docx