Rising crude prices and a deregulatory push in Washington may spur as many as 40 companies to hold initial public offerings over the next two years, potentially tripling 2016’s activity, according to Maynard Holt, chief executive officer at Houston-based investment bank Tudor Pickering Holt & Co. After a year in which explorers in the Permian shale basin straddling Texas and New Mexico dominated the business, interest in new oil-industry offerings is likely to spread wider.