Patterson-UTI confirms that we are responding to a fire at one of our drilling rigs in Pittsburg County, Oklahoma. The cause of the fire is unknown at this time. We have received reports that some of our employees and others are unaccounted for at this time. Our top priority is the safety of our employees and any others who may be affected. We've activated our emergency response systems and are fully cooperating with first responders and authorities on the scene. We will provide more details as they are known.