Pioneer Energy Services Corp. provides land-based drilling services and production services to a group of independent oil and gas exploration and production companies in the United States and internationally in Colombia. The Company operates through two segments, which include drilling services segment and production services segment. It also provides two of its services (coiled tubing and wireline services) offshore in the Gulf of Mexico. Its drilling services segment provides contract land drilling services to a group of exploration and production companies through the Company's four drilling divisions in the United States, and internationally in Colombia. Its production services segment provides a range of services to a group of exploration and production companies, with its operations concentrated in the various United States onshore oil and gas producing regions in the Mid-Continent and Rocky Mountain states and in the Gulf Coast.