I'd be willing to bet a steak dinner that the Navy doesn't buy anything from Lucas, and probably not from most other boutique vendors either. The big boys are the ones that have the resources (and motivation) to do all the testing to mil-spec certification. Mobil, Shell, BP, etc. The military and Mobil seem to have a pretty longstanding relationship. Early jet engines I've seen almost always reference a Mobil turbine oil "or equivalent meeting Mil-Std such and such."
The big companies also have worldwide distribution networks, too.