Owners voted 28-2 in favor of the move, with Dallas and Portland voting against. Mavericks owner Mark Cuban has previously expressed concerns about the market size, and commissioner David Stern said the Trail Blazers, owned by Seattle software billionaire Paul Allen, didn't say why they voted the way they did.
"The vote further confirms that Oklahoma is in the big leagues and can compete with anyone," Oklahoma Gov. Brad Henry said in a statement.
