Weatherford International Ltd. provides equipment and services used in the drilling, evaluation, completion, production, and intervention of oil and natural gas wells worldwide. It offers artificial lift systems, which include reciprocating rod lift systems, progressing cavity pumps, gas lift systems, hydraulic lift systems, plunger lift systems, hybrid lift systems, wellhead systems, and multiphase metering systems. The company also provides drilling services, including directional drilling, ‘Secure Drilling’ services, well testing, drilling-with-casing and drilling-with-liner systems, and surface logging systems; and well construction services, such as tubular running services, cementing products, liner systems, swellable products, solid tubular expandable technologies, and inflatable products and accessories. In addition, it designs and manufactures drilling jars, underreamers, rotating control devices, and other pressure-control equipment used in drilling oil and natural gas wells; and offers a selection of in-house or third-party manufactured equipment for the drilling, completion, and work over of oil and natural gas wells for operators and drilling contractors, as well as a line of completion tools and sand screens. Further, the company provides wireline and evaluation services; and re-entry, fishing, and thru-tubing services, as well as well abandonment and wellbore cleaning services; stimulation and chemicals, including fracturing and coiled tubing technologies, cement services, chemical systems, and drilling fluids; integrated drilling services; and pipeline and specialty services. It serves independent oil and natural gas producing companies. The company was founded in 1972 and is headquartered in Geneva, Switzerland.