Pin oak that far south (Houston) is not going to thrive -- it's a more northern, mid-west tree. So, as it is weakened, diseases and pests are going to attack it and it will be short-lived. Best to cut it down IMHO.

we should probably confirm the ID though i doubt it matters..

i cant really focus on the pic.. to see the bark issue very well ...

if it falls.. is it a threat to anything .... like the house.. barn.. neighbor.. etc.. whether you like your neighbor.. you really shouldnt kill him or her with a dead tree ..

is see it is near the house..

either invest in having an isa certified tree doctor come give you a valid on site opinion..

https://duckduckgo.com/?q=isa+arborist&t=ftsa&ia=web

or just use that money towards removal ...

relying on us.. isnt the best option at this time..

your house and your life are the important things here.. not tree hugging... focus...

ken