Richard J. Lonsinger is a member of the Ponca tribe of Oklahoma, who was adopted at a young age into a white family of three. He eventually reconnected with his birth family, but when his birth mother passed away in 2010, he wasn't included in the distribution of her estate. Feeling both hurt and excluded, he asked a judge to re-open her estate, to give him a part of one particular asset: an Osage headright.An Osage headright is a share of profits from resources like oil, gas, and coal that have been extracted from the Osage Nation's land. These payments can be sizeable - thousands or even tens of thousands of dollars a year. Historically, they were even larger – in the 1920s the Osage were some of the wealthiest people in the world. But that wealth also made them a target and subject to paternalistic and predatory laws. Over the previous century, hundreds of millions of dollars in oil money have been taken from the Osage people.On today's show: the story of how Richard Lonsinger gradually came to learn this history, and how he made his peace with his part of a complicated inheritance. This episode was produced by Willa Rubin with help from Alyssa Jeong Perry and Emma Peaslee. It was engineered by Brian Jarboe and fact-checked by Sierra Juarez. It was edited by Keith Romer, with help from Shannon Shaw Duty from Osage News.Help support Planet Money and get bonus episodes by subscribing to Planet Money+ in Apple Podcasts or at plus.npr.org/planetmoney.