Challenger Limited, a private company limited by shares, was established in 1991 in the Isle of Man. The company is a contract oilfield drilling and work-over services provider. Starting with just nine rigs during its inception, Challenger now operates 29 rigs, 25 of which are under long-term contracts in Libya. Challenger employees count for more than 1300 in various specializations, including but not limited to, onshore drilling and work-over techniques, mechanical and electrical engineering, preventative maintenance, QHSE, legal and contracts, financial and banking, human resources and IT. more...