feb 17 reuters  abu dhabi bourse settled higher on friday after flagship oil firm abu dhabi national co also known as adnoc announced an initial public offering for its gas business while dubai index closed weaker despite crude prices crashing more than 2 the abu dhabi benchmark index ftfadgi advanced as the announcement of adnoc gas ipo bolstered riskon mood among gainers statecontrolled integrated utility firm abu dhabi national energy company taqa surged 46 after the firm received 5 stake in adnocs gas business ahead of its ipo adnoc will sell 4 of its gas business in an ipo with adx listing planned for march 13 oil prices declined on friday on concerns of a higher rate hike by the us federal reserve to cool inflation with brent crude down 228 or 268 to 8286 a barrel by 1124 gmt two fed officials said on thursday the us central bank likely should have lifted interest rates more than it did early this month dubais main index dfmgi dropped 03 snapping two sessions of gains with most sectors trading lower farah mourad a senior market analyst of xtb mena said dubai was volatile and could remain exposed to potential price corrections while sentiment deteriorated