Integris Health – Oklahoma City West The 22,650 square-foot, two-story medical building was built in 2019 and is 100% occupied by Integris Health (“Integris”). The building is a National Historic Landmark. Oklahoma's first state capital was Guthrie, Oklahoma, but was moved to Oklahoma City in 1910. Construction began. Capital funding grants for nonprofits, for-profits and small businesses in Oklahoma, Oklahoma City, Tulsa, Norman, Broken Arrow, Lawton.