USGS Estimates 20 Billion Barrels of Oil in Texas’ Wolfcamp Shale Formation
USGS Does Real Science...no bobble heads involved
No bobble head nobodies involved, just good ol' scientists studying the geology, doing the math, letting the world know what's up with a basin and its potential. Said work then being used by federal experts (who also don't ask bobble heads from community colleges about the geopolitics of oil, the geology involved in it, or expected production rates) who do REAL analysis.
Just one days example here:
Maritime chokepoints are critical to global energy security - Today in Energy - U.S. Energy Information Administration (EIA)
I'm betting the folks who DO energy geopolitics at the federal level have more knowledge in their toenails then folks who blog and pretend that makes them an expert.