Since its start in 1969, the family-owned Henry company had been viewed by the Permian Basin oil community as "a little ol' Spraberry driller," reliable and determined but quaintly plodding.But in summer 2003, the company inconspicuously drilled two wells on picked-over acreage and quietly deployed an experimental "slickwater" frac. Both wells roared to life at high producing rates, and Henry hushed the results and launched a covert land grab ringing...