Wells Fargo & Co.’s record streak continues. The San Francisco-based bank on Friday reported record-high fourth-quarter net income of $4.9 billion, or 91 cents per common share. The results beat analysts expectations of 89 cents per share. The lender improved over the same period a year ago by 25%. In the fourth quarter of 2011 the bank reported $3.9 billion in net income. For the full year in 2012, Wells reports net income of $18 billion, also a record high, compared to $15 billion in 2011.…