[TADSLOS]

Not quite. There are Federal lands in Texas, just not nearly as much as in other mid-Western and Western states. Big Bend NP is probably the largest single chunk.

[5thGenTexan]

What they do own is deeded 'private' property where the owner is the Federal Government. Big Bend, various forts, etc. These are managed by DoD or National Park Service.

There are no Federal lands under Federal jurisdiction like in the western states. BLM does not operate in Texas.

[5thGenTexan]

Oh, another big chunk I left off the list is the reservoirs managed by the Army Corps of Engineers.