CapStar Drilling is a full-service company that provides drilling services in west Texas and Ohio. It operates more than 20 rigs in its various facilities throughout the United States. In operation for over 20 years, the company has a fleet of nearly 35 semiautomatic land drilling rigs that offer fit-for-purpose alternative to traditional box rigs. CapStar Drilling s rigs are capable of drilling vertical, directional and horizontal wells up to 12,000 feet. It maintains duplex and triplex mud pumps for conventional fluids and overbalanced drilling and compressor packages for loading the well bore. The company is owned and operated by Oil States International, which is one of the leading manufactures of products for deepwater production facilities and subsea pipelines in the oil and gas industry.