Oily Skin After CO2 Laser Resurfacing?

The best thing to do is to see another doctor in your area.
It is not uncommon for patients that received laser skin resurfacing to have a "perceived" shinny / oily skin. You have removed the outer layers of the "old" skin and are now left with the new you which should look younger.
The epithelium that covered the dermal layer that was exposed after your treatment comes from the cells that are part of the hair shafts. You may have more oil deposited on your skin. It should get better with time. You may see that your skin is more flushed to heat. That maybe due to the fact that the yellow / brown "old" sun damaged skin is now gone and you see the "red" more.

Major laser resurfacing procedures with the traditional CO2 laser may be prone to unwanted side effects such as scarring , loss of pigment, prolonged redness and poor wound healing. This is largely due to the fact that this particular laser relies on heat deposition to tighten the skin, instead of pure ablation. The oiliness of your skin may be helpful to maintain less wrinkling but seems to be concerning to you. You can use retin-A like products prescribed by your dermatologist or surgeon to try to combat this. If the skin looks unnatural you should address this with your surgeon who performed your laser and ask what needs to be done if anything. Sometimes a touch up or another type of laser can help reduce the oiliness and improve your appearance (i.e. 1450nm laser).