Here is a diagram showing the life span of gas depletion (oil expansion?) drive mechanisms in a typical shale oil well. GOR rises at the bubble point threashold, free gas breaks free from liquids, those liquids decline, then associated gas declines, GOR goes down and the well faces death as it reaches economic limits. Gas does not produce forever as some seem to think. Midland and Martin Counties are so heavilty saturated with wells the entire counties are basically bubbling out, GOR is skyrocketing, for the moment, WaHa Hub prices are worth spit and soon gas will be on the escalator down.
Howard County to the NE, within the productive limits of the Midland Basin but thought to be very flank, Tier 3/4 country, particularly to the east, is already bubbled out and gas production for the country is tanking.
To build multiple $40 billion LNG export facilities based on gassy shale oil wells turning into oily shale gas wells is lunacy.
Ultra deep, HPHT Haynesville wells (18,000 TVD) cost $25-30MM each with 4-5 strings of casing. They make 8 BCF of gas in the first few months of production (appx. $6MM net to the WI) then start poopin' out, down to <1 BCF per month. People go ape nuts over these big wells but can't do the arthmetic that clearly shows they will struggle to pay out.
Before anybody sets their air on fire about 100 years of natural gas and dominating the world with "freedom" LNG exports its best to do something simple math on economics, remember bigger is not always better, and more always leads to lower, more volatile natural gas prices. Ask all those small stripper gas producers around the country how they feel about the shale industry destroying their market using borrowed money they can't pay back.