We are highlighting some high-yielding dividend stocks that investors should keep on the radar. AGL Resources (AGL) – natural gas play traded down $.76 this week. Attractive 5.02% dividend yield. Amerigas Partners LP (APU) – retail propane distributor play was down $.29 this past week. Attractive 9.71% dividend yield. Buckeye Partners Ltd. (BPL) – refined petroleum products play [...]