Pacific Drilling has been removed from the New York Stock Exchange (NYSE) after failing to meet listing requirements.
NYSE Regulation said trading of its shares would be suspended after the market closed on Tuesday.
Pacific Drilling had been unable to maintain an average market capitalization of $15m over a consecutive 30 trading-day period.
It had the option to appeal the NYSE's decision, but has opted not to contest the action based on the cost of appeal and the likelihood of success.
