He may, or may not be a threat to oil gangs... his blogging opponents, use his voting record on domestic oil issues as an example, claiming he is pro-oil and not an environmentally friendly candidate.
His voting record in regard to energy issues, however is more of a reflection of his attempt to reduce our foreign oil/energy dependency and reduce the trade debt. He really does want an independent, energy self sufficient country.
He understands that a country with food and energy self-sufficiency is a strong, independent country and shows it with his voting record on both issues.
I personally do not believe that he is a threat to the drug companies... he has no problem with the pharm-medico industry per se... he just wants to enable and protect the freedoms of the competition, medical alternatives. If the drug companies feel threatened by their competition, what does this state about their products? What does it state about them as an industry? They are a threat to themselves.
As with any decision or action, one has to take the bad with the good. Supporting Ron Paul is no different... what you do with your vote has more to do with what direction you would like to see America move in as a country than anything else.