Chevron is evacuating workers from all its platforms in the Gulf of Mexico as meteorologists warn of a tropical storm approaching the area. For now, Chevron is only evacuating non-essential personnel, Reuters reported, saying that oil production at the facilities remains normal. Some analysts, however, see the storm warning as a further complication for already jittery oil markets. Shell is also evacuating non-essential personnel from six offshore platforms, CNN reported, and so is BP, in anticipation of the storm’s approach. The report cited…