Oil and gas business will not be profitable in the long term because of renewable energy. So many countries around the world will phase out their fuel vehicles, and replaced them with electric vehicles, but real estate business will always be one of the most profitable business in life.The both real investment estate and oil & gas business are very lucrative and profitable in terms of business that can generate a lot money. But what I want to say is that both Business required a huge capital to start because the businesses are not for poor people.