As of the end of 2019, Barrick had more than 70 million ounces of proven and prospective gold reserves in its portfolio. Since then, Barrick has added additional reserves via acquisitions and partnerships, bolstering its long-term growth prospects. The company has been producing at an annual clip of around five million ounces per year. Accordingly, it appears Barrick has at least 15 years or so of production lined up at its current pace of production.