A meter's dials indicate cubic feet of natural gas consumed. Higher utility bills have left many people behind on payments, including in Maryland, where 120,000 customers are in arrears and the Public Service Commission is investigating. (Getty Images)

A meter's dials indicate cubic feet of natural gas consumed. Higher utility bills have left many people behind on payments, including in Maryland, where 120,000 customers are in arrears and the Public Service Commission is investigating. (Getty Images)