What is the fine-grained topic of the following text: BENGHAZI, Libya/LONDON (Reuters) - Workers at Libya’s El Sharara oilfield are ready to resume production with an initial output of 80,000 barrels a day but are still waiting for approval from state oil firm NOC, a field engineer and trader said on Wednesday. Only return the topic.
Resumption of production at Libya's El Sharara oilfield