2:47:35 PM According to results from independent research firm TQS Research Inc., MidAmerican Energy Co. had one of the highest scores among utilities in the United States, with 95.4 percent of customers surveyed saying they were very satisfied, the highest score the company has achieved to date.  The annual TQS benchmark survey of approximately 49 of the largest electric utility holding companies measures performance in areas such as energy efficiency, account management, reliability, price, handling customer contacts and company image.