Nabors Industries, Inc. is one of the largest land drilling contractors. Nabors conducts oil, gas and geothermal land drilling operations in the U.S. and internationally. Nabors also is one of the largest land well-servicing and workover contractors in the United States. To further supplement its primary business, it offers a number of ancillary well-site services, including oilfield management, engineering, transportation, construction, maintenance, well logging and other support services, in selected domestic and international markets.