It was not possible to immediately verify the reports and Libyan officials in Tripoli were not available for comment.
Al Arabiya television quoted sources in the rebel Transitional National Council as saying that Ghanem had defected and joined rebel ranks.
Al Jazeera also reported that Ghanem had defected and left Libya, but it did dnot give any details.
Ghanem denied in an interview with Reuters in late March that he had left Libya, after al Jazeera carried a similar report saying he had defected from the Gaddafi regime to Tunisia.
Ghanem, 68, represents Libya at OPEC meetings. The U.S.-educated official has been NOC chairman since 2006.
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Editor: Ella Syafputri
Copyright © ANTARA 2011
