An oil industry group says Interior Secretary Ryan Zinke and Miss America Cara Mund, a Bismarck native, are among those who have been invited to speak at an energy conference that will be held May in North Dakota's capital city.

The North Dakota Petroleum Council says 26th annual Williston Basin Petroleum Conference will feature dozens of speakers, from politicians to top oil company executives, and industry-specific seminars.

The conference is scheduled May 22-24 at the Bismarck Event Center.

Started in 1993 with just a handful of attendees, the event has alternated in recent years between locations in North Dakota and Canada.

President Donald Trump, then the Republican presidential hopeful, was the keynote speaker in 2016 at the conference in Bismarck. About 7,000 people heard Trump's speech.