220 ILCS 25/1.03

"Private energy entity" includes every person, corporation, political subdivision, and public agency of the State who generates or produces natural gas for energy for his or its own consumption or the consumption of his or its tenants or for direct sale to others, excluding sales for resale, and every person, corporation, political subdivision, and public agency of the State who buys natural gas at the wellhead for his or its own consumption or the consumption of his or its tenants and not for sale to others. A private energy entity shall not be found to be a public utility as defined by the Public Utilities Act merely because of its activities in transmitting natural gas.