From The Laramie Police Department:
Someone is calling local residents claiming to be Vista Energy and the scammer has personal info on the resident they are calling, like name and address. Vista Energy is the supplier of gas to Kinder Morgan and the person placing the phone call claims the resident needed to pay her bill and update account info with a credit card right away with a sense of urgency.
Kinder Morgan has confirmed that Vista Energy is their supplier but should not be contacting customers in any way. Do not share personal information with anyone who calls you in this manner and hang up immediately if you get a call like this.