In July, the Supreme Court ruled that the eastern half of Oklahoma is Native American land. In the ruling, the justices said they were keeping the promise the government made to the Native Americans. But a hidden provision is allowing the state to keep control of the environmental regulations that rule over oil and coal plants. POLITICO’s Alex Guillen explains. Anthony Adragna is an energy reporter for POLITICO and host of POLITICO Energy. Alex Guillen covers the EPA and environmental issues for POLITICO. Carlos Prieto is a Politico podcast producer. Jenny Ament is the senior producer of POLITICO audio. Irene Noguchi is the executive producer of POLITICO audio.