For a small state with little of its own unique culture, Oklahomans sure love to find ways to divide ourselves. There's the obvious OU vs OSU rivalry, where amateur sports teams from schools that most of the fans didn't attend rankle residents' emotions against one another. We'll even fight about allegiance to giant gas stations, like Quik Trip vs OnCue, or which State Fair food truck created the 'original' Indian taco.
Perhaps the most vicious source of contention in the state is Tulsa vs OKC. Any time we run a story that even vaguely mentions Tulsa, it's a countdown for the first comment along the lines of "Well, you know it's the cultural capital of the state," or some other smarmy remark that is often unrelated to the topic at hand. In reality, there's enough pros and cons between the two cities that it's basically a Springfield vs Shelbyville situation.