The petroleum and natural gas industry includes a wide range of operations and equipment, from wells to processing facilities, to storage tanks, and transmission and distribution pipelines. Subpart W consists of emission sources in the following segments of the petroleum and natural gas industry:
Onshore petroleum and natural gas production
Offshore petroleum and natural gas production
Onshore natural gas processing plants
Onshore natural gas transmission compression
Underground natural gas storage
Liquefied natural gas (LNG) storage
Liquefied natural gas import and export equipment
Natural gas distribution