High Quality Content by WIKIPEDIA articles! Oxegen 2010 was the seventh Oxegen festival to take place since 2004. It took place on the weekend of Friday 9 July, Saturday, 10 July and Sunday, 11 July at Punchestown Racecourse near Naas in County Kildare, Ireland. Eminem, Muse and Arcade Fire headlined. A total of around 150 acts performed over the three days.