If I understand this correctly, mushrooms can eat the carbohydrates in oil and oil products. I wonder what happens to metals mixed in the oil, do mushroom suck

If I understand this correctly, mushrooms can eat the carbohydrates in oil and oil products. I wonder what happens to metals mixed in the oil, do mushroom suck those in as well or somehow filter them and leave in the ground? Old oil well and refinery sites in the developing world are full of ponds with a mix of water and oil/oil products that often come as a result of cleaning processes. Over time, due to evaporation and dust, these turn into asphalt like hard substances. Mushrooms could be a low cost solution to removing those over time, the slow speed of growth won't that much of issue as with fresh oil spills.