We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember Chris Bacon
saying something like:

Grimly Curmudgeon wrote:
I'd be surprised if extraction technology doesn't improve greatly, with
the spur of rising prices. I find it scandalous that many fields are
abandoned with substantial quantities of oil still in them. Cost, I
suppose.

Nothing to stop 'em drilling another hole later on...

True enough, but istr that previous extraction methods left some fields
unusable for the remaining oil. Something to do with the peculiar
geology of oil reservoirs.
--

Dave