Final answer:
The Osage benefited greatly from the oil boom because they retained their mineral rights as a tribe and were able to profit from the extraction of oil on their reservation.
Step-by-step explanation:
The Osage benefited greatly from the oil boom for several reasons. One of the main reasons is that the Osage retained their mineral rights as a tribe, which allowed them to profit from the extraction of oil on their reservation.
This ownership of mineral rights gave them control over the valuable resources and allowed them to negotiate favorable deals with oil companies. Additionally, the discovery of oil on their lands brought considerable wealth to the Osage Nation, making some of its members among the wealthiest people in the world at that time.