S101, Your post makes me think you are in the industry. Have you heard about sending microwave exciters down into the shale to excite the oil out? My guess is the power source would be via generator and a cable down to it...
Yes but it takes loads of power and some are twitchy about pollution since this stuff is shallow. Someone will crack the insitu goal maybe someday.
Like natural gas hydrates, it’s there but how to get it is the problem