UPDATE 1-Libya's NOC declares force majeure on 70,000 bpd El Feel oilfield

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TUNIS, Feb 24 (Reuters) - Libya's National Oil Corporation (NOC) said on Saturday it had declared force majeure on the 70,000 barrels per day (bpd) El Feel oilfield after a protest by guards closed the field.

The NOC said force majeure was declared on Friday after "members of Fazzan group from the Petroleum Facility Guards (PFG) threatened workers, entered the administrative offices in the field, tampered with official papers of the field administration and fired in the air."

El Feel was shut after guards withdrew from the field to push demands over pay and other benefits earlier this week.

NOC Chairman Mustafa Sanalla was quoted in the NOC statement as saying the guards were attached to the ministry of defense, and it was up to the ministry to respond to their demands.

"The NOC supplies the PFG members in the field with fuel and supplies but cannot supply hundreds of those who claim to be members of the PFG in areas far and away from the scope of the oil sector operations," he said.

The field is operated by a joint venture between state-owned NOC and Italy's Eni.

Crude from El Feel is blended with condensate from the Wafa field to form the Mellitah blend, which is exported from the Mellitah terminal. (Reporting by Ahmed Elumami and Aidan Lewis; Editing by Mark Potter)