To have interaction with or to encounter or to see an oil spill, when you are dreaming, can be interpreted as your being in the state of great disturbance, confusion, or uncertainty. Maybe you are in psychological turmoil. If yes, then you are experiencing troubles in your personal relationships. That gives you a lot of stress. You need to take a break and relax.
Read more about dreaming of Oil Spill in other dream meanings interpretations.