ABU DHABI - Saudi Aramco Chief Executive Officer Amin Nasser said the initial public offering of the state-oil producer will "certainly" happen when the conditions are right.

Saudi Aramco said it is still in discussions to buy a stake in petrochemicals company Saudi Basic Industries Corp. (Sabic) from the kingdom's sovereigh wealth fund, the Public Investment Fund, he said at a conference in Abu Dhabi.

(Reporting by Rania El Gamal; writing by Maher Chmaytelli) ((maher.chmaytelli@thomsonreuters.com; +9647901917030;))