Production and tanker export operations are normal following the terrorist attack on the headquarters of Libya's National Oil Corporation (NOC) in Tripoli.
The 10 September raid by armed men killed two employees and injured another 25.
There has been no loss of production, however, NOC said.
"The corporation assures citizens that contingency plans were immediately activated during the crisis to ensure production and operational continuity," it added.
Budget and revenue systems remain secure, as does all data relating to NOC exploration, production, refining and marketing activities.
No operationally sensitive files were damaged or lost in the attack, it said.
NOC chairman Mustafa Sanalla has visited the injured in hospital. Their conditions were said to be improving.
He said: “We will not lose one barrel of production or revenue as a result of this attack. Yet more Libyan blood was shed resulting in the death and injury of our colleagues.
"Those who perpetrated this callous act must be condemned universally. We are standing on the edge of a precipice and must make a choice – unify as a country, or descend further into chaos."
And he added: “The attack on NOC headquarters exposes the fragility of security arrangements in our country. The current security vacuum opens a space for terrorist organisations to exist."
