Oil States International, Inc., through its subsidiaries, provides specialty products and services to oil and natural gas companies worldwide. It operates through two segments, Offshore Products and Well Site Services. The Offshore Products segment designs, manufactures, fabricates, inspects, assembles, repairs, tests, and markets subsea equipment and offshore vessel and rig equipment. Its products and services comprise flexible bearings and connection systems; casing and conductor connections and pipes; subsea pipeline products; compact ball valves, manifold system components, and diverter valves; marine winches, mooring systems, cranes, and other heavy-lift rig equipment; production, workover, completion, and drilling riser systems and their related repair services; blowout preventer stack assembly, integration, testing, and repair services; and other products and services. The Well Site Services segment offers a range of products and services that are used to drill for, establish, and maintain the flow of oil and natural gas from a well throughout its lifecycle. Its services for the onshore and offshore oil and gas industry, including wellhead isolation services; wireline and coiled tubing support services; frac valve and flowback services; well testing comprising separators and line heaters; ball launching services; pipe recovery systems; thru-tubing milling and fishing services; hydraulic chokes and manifolds; blow out preventers; downhole technology; and gravel pack and sand control operations on well bores. This segment also provides land drilling services for shallow to medium depth wells. The company was founded in 1995 and is headquartered in Houston, Texas.