Got them from Banana Republic. I thought you do straight lacing on Oxfords? Not criss cross?
I think whatever floats your boat is how you lace your shoes. I criss cross 85% of my laces regardless of style of shoe, and there are no rules on this, at least, none that are enforced with penalties or summonses. There are some good resources above, including some links about how to accomplish to straight lacing you want to use.