Challenger Limited

Challenger is based in the Middle East and North Africa (MENA) region, and the company Chairman is Hassan Tatanaki. The company was founded in 1991 and operated first in Africa later expanding into the Middle East.

Challenger is a provider of contract oil and gas land well drilling and work over services. The company owns and operates 25 drilling rigs in Libya providing drilling and work-over services for oil, gas, and water wells, with offices in Egypt, Saudi Arabia and the United Arab Emirates. Workover refers to any kind of oil well intervention involving invasive techniques, such as wireline, coiled tubing or snubbing. More specifically though, it will refer to the expensive process of pulling and replacing a Completion (oil well).

https://www.challengerlimited.com