TUNIS- The U.N. Libya mission said on Thursday it was concerned by a shutdown of oil output at Hariga port and indications of coming production shutdowns elsewhere.

It said it was incumbent on all parties in Libya to ensure that the National Oil Corporation stayed independent, technocratic and well-resourced after its AGOCO subsidiary stopped output amid a budget dispute.

(Reporting by Angus McDowall Editing by Gareth Jones) ((angus.mcdowall@thomsonreuters.com; Reuters Messaging: angus.mcdowall.thomsonreuters.com@reuters.net))