Weatherford International Ltd. is one of the largest oilfield service companies in the world. It operates in more than 100 countries and carries out research and development in the oil and gas industry. The company offers services for drilling, evaluation, completion, production and intervention. It utilizes Tactical Technology in designing oil and gas assets of customers. The company has 125 globally distributed manufacturing facilities that support 800 service bases, as well as 16 technology development and training facilities.