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Like black bullheads, yellow bullheads are not generally considered an important gamefish in Texas, though they are readily fished for by anglers in the Panhandle, and in far East Texas. Angling techniques for the two species are very similar. The largest specimen reported to date in Texas was 5.59 pounds.

http://www.tpwd.state.tx.us/huntwild/wild/species/ybh/

All I found on regulations for fishing the yellow bull head at park and wildlife