You have indeed been paid by fossil fuel industries. Your bio on the APCO site, which has of course since been removed, reveals your working relationships with oil, gas and coal clients. See below:
“Mr. Harris has worked with private companies and trade associations to successfully position these entities and their interests with media and before various government committees and regulatory bodies.
Specifically, he has worked with oil and gas, coal, nuclear, environmental and aerospace clients for whom he has conducted effective media and public relations campaigns.”
Your APCO bio reveals that you have been blatantly lying about not being paid by fossil fuel industries.
See the entire bio below: