Nabors Industries Ltd., together with its subsidiaries, operates as a land drilling contractor worldwide. The company markets approximately 499 land drilling rigs for oil and gas land drilling operations in the United States Lower 48 states, Alaska, Canada, South America, Mexico, the Middle East, the Far East, the South Pacific, Russia, and Africa. It also markets approximately 581 rigs for land well-servicing and workover work in the United States and approximately 174 rigs for land well-servicing and workover work in Canada. In addition, the company provides offshore platform workover and drilling rigs, including 39 platform, 12 jackup, and 4 barge rigs in the United States comprising the Gulf of Mexico and international markets. Further, it offers a range of hydraulic fracturing, cementing, nitrogen, and acid pressure pumping services; and ancillary well-site services, such as engineering, transportation and disposal, construction, maintenance, well logging, directional drilling, rig instrumentation, data collection, and other support services. Additionally, the company manufactures, leases, or sells top drives for a range of drilling applications, directional drilling systems, rig instrumentation and data collection equipment, pipeline handling equipment, and rig reporting software. Its fleet also comprises various trucks and fluid hauling vehicles. The company, formerly known as Anglo Company, Ltd., was founded in 1968 and is headquartered in Hamilton, Bermuda.