He said on Oasis.net that "It's with some sadness and great relief to tell you that I quit Oasis tonight," he wrote. "People will write and say what they like, but I simply could not go on working with Liam a day longer."
I'm always shocked when people work with family.* And the Gallagher brothers have never been on the best of terms. Even so, this doesn't feel like it'll stick. After all, what's he gonna do, go solo? Or just sit around with his piles of money?
*(Even P.C. Cast and her daughter Kristen in the House of Night series! You are mother and daughter! This is akin to cats and dogs! You should be fighting about creative control! Exclamation point!)