RE:Oil Flow How long as crude been produced world wide before the frack brothers showed up circa 2005?
Besides the US where is fracking the major source of crude oil wells completion technique?
How many decades has the Permian been producing crude before the advent of fracking?
Pruhoe Bay Alaska - conventional.
From the Link to Texas RR commission
Texas portion of the Permian in most of the 60s - 70's the annual production over 1 Billion barrels.
Long before frack widened the crack.