The Pawnee are a Caddoan-language Native American tribe that historically lived along outlying tributaries of the Missouri River: the Platte, Loup and Republican Rivers in present-day Nebraska and in Northern Kansas. They were one of the dominant tribes on the Great Plains and followed a way of life whose major patterns had been continuous since about 1250 CE.
There are approximately 3,210 enrolled Pawnee, with 1,725 living in Oklahoma. Their tribal headquarters is in Pawnee, Oklahoma and George E. Howell is their President. They issue their own vehicle license tags, operate their housing authority, and maintain two casinos, four smoke shops, two fuel stations, and one truck stop. Their estimated economic impact is $10.5 million. (source) Thank you Robb!