This sector consists of the following industry segments of the petroleum and natural gas industry.

• Onshore Production. Production of petroleum and natural gas associated with onshore production wells and related equipment.
• Offshore Production. Production of petroleum and natural gas from offshore production platforms.
• Gathering and Boosting. Gathering pipelines and other equipment that collect petroleum/natural gas from onshore production gas or oil wells and then compress, dehydrate, sweeten, or transport the petroleum and/or natural gas.
• Natural Gas Processing. Processing of field quality gas to produce pipeline quality natural gas, and fractionation of gas liquids.
• Natural Gas Transmission Compression. Compressor stations used to transfer natural gas through transmission pipelines.
• Natural Gas Transmission Pipeline. A rate-regulated interstate or intrastate pipeline, or a pipeline that falls under  the "Hinshaw Exemption" of the Natural Gas Act.
• Underground Natural Gas Storage. Facilities that store natural gas in underground formations.
• Liquefied Natural Gas (LNG) Import/Export. Liquefied Natural Gas import and export terminals.
• LNG Storage. Liquefied Natural Gas storage equipment.
• Natural Gas Distribution. Distribution systems that deliver natural gas to customers.
• Other Petroleum and Natural Gas Systems. Stationary fuel combustion emissions from petroleum and natural gas source categories that are not otherwise listed.

• 2016 Total Reported Direct Emissions from the Petroleum and Natural Gas Systems  Sector, by Subsector (as of 8/5/17)

  

• Trend of Annual Reported Direct Emissions from the Petroleum and Natural Gas Systems Sector, by Subsector (as of 8/5/17)

  1)Beginning in Reporting Year 2016, Onshore Production facilities began reporting emissions from oil well completions and workovers with hydraulic fracturing. These emissions were not reported for prior reporting years.

  2)This industry segment began reporting data for the first time in Reporting Year 2016.

  3)Beginning in Reporting Year 2016, facilities that met the definition of Gathering and Boosting reported emissions for applicable sources. This includes certain stationary and portable fuel combustion equipment emissions that may have been published for Reporting Years 2011-2015 as Other Petroleum and Natural Gas Systems.

^a Facilities in the Gathering and Boosting and Transmission Pipeline industry segments began reporting in 2016.

Totals may not equal sum of individual GHGs due to independent rounding.

CO₂ emissions from the combustion of biomass are NOT included in emissions totals provided above.

Totals may not equal sum of individual GHGs due to independent rounding.

** Total reported emissions are less than 0.05 million metric tons CO₂e.

• Reported emissions (CO₂e) and well count by county for onshore production facilities
  
• Facility locations and reported emissions (CO₂e) for offshore production
  
• Reported emissions (CO₂e) by geologic basin for gathering and boosting facilities

  

• Reported emissions (CO2e) and facility locations for industry types: natural gas processing, natural gas transmission, underground natural gas storage, LNG storage, LNG import/export

  

• Reported emissions (CO₂e) by state for onshore gas transmission pipelines

  

• Reported emissions (CO₂e) by natural gas utility service territory for natural gas local distribution companies

  

Other EPA Resources

• U.S. Greenhouse Gas Inventory Report
• GHGRP Subpart W - Petroleum and Natural Gas Systems

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