We list 19 museums in Oklahoma that take a NARM membership, across 16 towns and cities. The largest clusters are Oklahoma City, Tulsa and Bixby.
NARM does not apply within 15 miles of the institution where you hold your membership, and in a state this shape that matters differently depending on where you joined.
Oklahoma City is the busiest single base: 5 of the 19 are within 25 miles of it, so one day out covers 26% of the state list. Another 8 sit more than 100 miles away, and the list spans about 186 miles end to end, so the rest is a second trip rather than a detour.
Because the benefit is built for travel, the states next door are usually where the card earns its keep.