Oklahoma: Osage Nation casino fills to limited capacity less than two hours after opening Samantha Vicent, Tulsa World · May 16, 2020 at 5:30 pm Osage Casino in Tulsa reopened to long lines with hundreds of people Friday morning, and in less than two hours after opening, it reached its occupancy limit. More than 1,200 people entered the casino after it reopened its doors at 10 a.m. The casino, which had been closed since March 19 by the ongoing COVID-19 pandemic, has limited its occupancy levels to meet social distancing guidelines. Entrance to the gaming floor, the sole portion open for customers, was only permitted through the parking garage before the casino reached the 25% occupancy threshold at about 11:20 a.m. But that didn’t stop the roughly 400 people — some with masks and gloves — from cheering loudly once they heard the all-clear for slot game play.