Just got this call. Glad we checked it out! Very rude person on the other end of the phone telling us that it is a "no brainer" to switch....Got news for him! Not gonna happen.

any ideal who keeps calling me and hanging up all day every day. this should be against the law and consider harassment. is it any way we can find out who these telephones number belongs to and sue the company, I BET THEY ARE BILL COLLECTORS

8007644427

The call is from Santanna Energy Services and they want you to switch to them to be your natural gas provider.  Disappointing that they call numbers on the DO NOT CALL registry trying to drum up business.  That right there is a reason for me not to switch to them.

Not sure what this one is about. no one seemed to be in the other end and when googled it sais it's from a energy service.

It belongs to something called Santanna Energy Services, they're an energy reseller that tries to sell to people's gas / north shore gas / nicor customers in IL...at least that's what comes up when you google it.
http://www.santannaenergyservices.com/customerservice.php