After pricing lower than expected at $13 per share, Midstates Petroleum Co. raised $312 million in its initial public offering. The oil exploration and production company begins trading on the New York Stock Exchange Friday, April 20, under the ticker MPO. In this video, CEO John Crum explains that the Houston-based company plans on using the proceeds to pay down its bank revolver. A profitable company, Midstates is "not struggling with the issues with natural gas like many producers today," Crum says, as liquid and crude oil comprises most of its business. - Katie Roof