Three risks to banks' bottom line that aren't being discussed has Richard Bove worried that banks could get blindsided againOne of the lessons that we learned from this year's round of stress tests is that, while some banks are incredibly complex and likely therefore hard to manage, US banks are much better capitalized now than they were in the run up to the financial crisis. But just as banks ignored the risks that came along with their reliance on mortgage-backed securities, Rafferty Capital Markets VP of equity research Richard Bove sees three growing risks that banks should be discussing but aren't. Sign up for our free daily newsletter "My conversations with bankers in recent days indicate that virtually no thought is being given to the impact of these three loan products on their businesses. It is almost like we are back in 2007 and no one really cares about the basic drivers to the product sales," Bove writes. Falling oil prices could hurt exposed banks Bove's first big worry is the banking sector's exposure to the oil industry. He remembers when oil fell to $10 per barrel in the mid-1980s, wiping out what had been a strong Texas banking industry because of its concentrated exposure to that one sector. But it's not just struggling oil companies that create problems for banks. The communities that spring up around oil and gas activity can disappear just as quickly, and Bove mentions the Colorado National Bank getting stuck with over 100,000 mobile homes after the shale oil industry shut down as an example of knock on effects that can have a major impact on banks. "I know nothing about what drives oil prices and in most likelihood never will. I do know, however, what a sustained period of relatively low oil prices will do to banks," says Bove, with WTI crude below $80 per barrel and Brent crude not much higher.