Understanding your options for planning ahead under Oklahoma law. Many Oklahomans put off estate planning because they assume it's only for the wealthy, or because they believe the state will simply take everything if they die without a will. Neither is true. If you own a home, a car, or even just a bank account, you have an estate, and Oklahoma law has very specific rules about what happens to it depending on whether you've made a plan. What Happens If You Die Without a Will