I think your wrong. They work together all the time.

I think you are correct. It's been a few years since I dealt with those things on a state level and after you mentioned it I remember the felony thing rings a bell.

Fishing Texoma is no different than any other Texas lake meaning if you're in TX only need a TX license. Problem is most of the lake is in OK and there is no painted line on the water. The river channel runs right next to the south side bank in a few places too. Cool thing is the limit on crappie is 37 on Big Tex. I always buy TX license and Texoma license every year.

i belive some part below the dam you need red river license, texoma license only good for the lake.

It's a Felony for a Texan to be in Oklahoma to begin with

Ok owns the river channel. If you are in the river you need a Ok license. I fish the Lower Fork for trout so I usually just buy a regular Ok license

Lots of bad info in this post. From the wall on the Texas side down to Shawnee creek you can fish the Texas side with a Texas license as long as your not in the water. Once you step foot in the water you need an OK license.

Seems straight forward on the website:

Two-thirds of this lake lies in Oklahoma. Anglers with Texas licenses may fish in the Texas portions of the reservoir, or purchase a Lake Texoma license ($12) to fish the entire lake.

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Along with a map of the exact coordinates of the state line:

http://tpwd.texas.gov/publications/nonpwdpubs/media/lake_texoma_sept08.pdf

Yep, they can and do. They do it a lot below the Denison Dam. In fact, one was a real a-hole to my brother-in-law. They have a slot that catfish have to be longer than 12 inches, and he had just caught a small catfish, he hollered at BIL that it counted against his limit for catfish for the day and I do not believe it was even long enough to be kept according to Oklahoma rules at the time.