Nic, stay on I-40 going thru Oklahoma City until you come to I-35 North to Wichita, Kansas.
Then go north on I-35 for approx 10 miles, give or take a mile and you will come to the I-44 exit (aka Turner Turnpike) to Tulsa.
Stay on I-44 all the way to Springfield, Missouri.
When you come to US65 in Springfield, exit on it and it goes directly south to Branson. (approx 38-40 miles)
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"Whenever I feel the urge to exercise I lie down until the feeling passes away."
Brick