Obviously electric cars are bad for oil industry. Electric cars are the future cars which are good for customers as well as environment. Even these cars have very low cost maintenance with 0% emissions of harmful gases. As we all know that now oil is a limited resource so electric cars are the best alternative for replacement with fule cars.
Yes, this is what makes the development of electric car slows down, I'm sure there is great pressure from the oil industry to the automation to slow the development of electric car because if the development is too fast then the oil industry will die soon.