Check out which companies are making headlines after the bell Thursday:
Helmerich & Payne - The provider of drilling rigs rose in after-hours trading after falling during the regular session, reversing course along with the price of crude-oil futures, which ended higher on the New York Mercantile Exchange.
Krispy Kreme Doughnuts - The franchise operator climbed in after-hours trading after saying Douglas Muir plans to retire as the company's chief financial officer in 2015.
Occidental Petroleum - The energy company gained in after-hours trading on news it plans to spin off its California business and increase its share repurchases.
Wave Systems - The technology company surged in after-hours trading after saying it sold its first smart-card product to the federal government.
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