"Commencement of operations" in Texas

Most of the actions by lessee that you are describing would occur during the primary term. If that is the case, the premise of your question is moot. As far as what would keep the lease in effect beyond the end of the primary term, that would depend on the wording and provisions contained in the lease. In that respect, I wouldn’t think that it is very gray. It would come down more to black on white.