Any one can recommend a place to refill my oxygen bottle in Houston area? I am planning on visiting this weekend and was planning on landing at KSGR as my destination, I have called a number of airports in the area and no one seem to provide this type of service. Only one company said they will do it at $75 for Oxygen and $100 for labor and wouldn't even commit if I can have it back the same day/weekend. I fill typically my bottle for $30 in CA and elsewhere.