Royalty rights of lessor with part of a "completed dry hole" in Tx

I inherited a Cleveland vertical well, from my father, which he bought 30 years ago as a

stripper, then. But, being a petro. eng., as well as a farmer he liked to

produce it. 480 acres came with the pump and tanks.

He died happily there, and i "took over," not knowing a whole lot,

except a course at OU, and lifetime of brief interaction, while he mapped.

So, i leased my 480 acres to his protege, and they drilled a horizontal

in the Cleveland on the other side of the section, going N-S.

After 4000 feet of lateral, fracked w 28 tanks of (?). Since

then little frac water, and sand have come out; only enough

to require blowing compressed air and soap three times. (Their

procedure was to hook onto a near by gas line, but it only had

30.#

So, boo hoo to that, but now my little stripper well won't produce,

even tho i checked tubing and replaced pump. Now, i've heard that

my neighbors well west across the road has the same problems.

Could someone explain my situation, or do i just sit and wait for

a tank of oil to be produced?

Thanks,

M.S.