"reference"><a href="#cite_note-1"><span>[</span>1<span>]</span></a></sup> The company was founded in 1991 and operated first in <a href="//en.wikipedia.org/wiki/Africa" title="Africa">Africa</a> later expanding into the <a href="//en.wikipedia.org/wiki/Middle_East" title="Middle East">Middle East</a>.</p>
<h2><span class="mw-headline" id="Operations">Operations</span></h2>
<p>Challenger Limited is a provider of contract oil and gas land <a href="//en.wikipedia.org/wiki/Well_drilling" title="Well drilling">