Founded in 1992, Basic Energy Services Inc. is one of the largest well servicing contractors in the United States. The firm offers an array of services, such as pumping, wireline, rental/fishing tools, contract drilling and well site construction. It caters to a group of over 2,000 companies in the major onshore oil and gas producing regions of the country. The firm is associated with the Association of Energy Service Companies (AESC), International Association of Drilling Contractors (IADC) and American Petroleum Institute (API).