Emission Reduction and Reporting

Natural gas development presents tremendous benefits that dramatically improve air quality through increased use of clean-burning fuel in power generation, home heating, transportation and manufacturing. Natural gas – or methane predominantly – produces about half of the carbon emissions of coal when used to generate electricity and is a key component for reaching the Environmental Protection Agency’s (“EPA”) emissions targets. Natural gas production continues to increase, yet Energy-Related CO2 emissions have been trending downwards faster than any other country thanks to increased use of natural gas.  

U.S. Energy-Related Carbon Dioxide Emissions, 2000-2017


Recent studies show that the emissions from natural gas development do not cause any air-related health issues to surrounding areas and do not create ambient air pollution conditions where adverse health impacts would be expected, if presented. 

The U.S. Energy Information Administration reported that U.S. energy-related CO2 emissions have declined in 7 of the past 10 years, and they are now 14% lower than in 2005.

Related Content: Report: Natural Gas Pivotal to Reduction In Emissions

Innovation is one of Range’s core values, which includes the consistent advancement and implementation of specific best practices in the field of emissions monitoring and reduction technologies in various phases of our operations. For a list of specific technologies and practices utilized by Range please click here. Importantly, Range’s emissions per unit of production are decreasing as Range improves and enhances well site technologies. Some of Range’s key innovations include:

  • When practicable and safe, the methane gas resulting from drilling operations is captured and combusted. During hydraulic fracturing operations, natural gas is captured and used as a fuel source for the operations reducing emissions and costs.
  • Range was an early adopter of the Reduced Emissions Completions (“REC”) standards before they were mandated in the federal regulations.
  • While the gas well sites are in operation, Range employs  a robust leak detection and repair program to reduce emissions from its sites.
  • Range’s facilities engineering team performs an annual review of our core operations to look for ways to reduce emissions, improve efficiency, and optimize technology and facility performance. 

Regulatory Reporting
For Federal Greenhouse Gas Reporting (40 FR, Subpart W) as well as PA Emissions Inventories (AIMS and OGRE) reporting for its assets within the Commonwealth of Pennsylvania, Range determines emissions by utilizing a combination of parametric monitoring, engineering calculations, and utilizing generally accepted modeling (simulation). The PA emissions inventories are due annually on March 1st and the Federal Greenhouse Gas Reporting is submitted annually by March 31st.  

Direct measurement of methane emissions is difficult since emissions are not always occurring in a predictable or measurable location. Range’s major focus is on intensive data gathering and recording of operating variables to enable an accurate and precise calculation of emissions. The calculation methods used rely heavily on prescribed methods in the EPA’s “Air Emissions Factors and Quantification” or AP-42. 

For example the oil production rate is carefully measured for sales, by knowing the oil flow rate and composition, an accurate estimate of the emissions from the production tank can be determined. This type of method is accurate enough to not only report emissions but also to design emissions control equipment.

*Emissions Calculations notes:
- This emission calculation includes both reported and non-reported CH4 emissions. The EPA requires that only basins with CH4 emission in excess of 25,000 metric tons/year be reported.
- This emissions calculation includes the full year of NLA CH4 emissions and production.  Range acquired the asset in Q4 of 2016, but the EPA requires the emissions be reported for the entire calendar year. To normalize the calculation the pre-acquisition 2016 production volume has also been added.