Methane is the second most common greenhouse gas (GHG), increasing interest in the quantication and mitigation of anthropogenic methane emissions. Additionally, as a short-lived atmospheric species with a global warming potential (GWP) 86 times that of CO 2 over a 20-year time horizon, control of methane emissions could produce a substantial reduction in climate forcing. In the U.S., methane emissions from the oil and gas (O&G) supply chain accounts for approximately one third of anthropogenic methane emissions, with the natural gas production, transport, use and export accounting for the majority of those emissions.