what are the causes of depletion of petroleum?

Answer 1

1). Man. 2). Greed. 3). Money and profit. 4). To many consumables, not enough recyclables. 5). Internal cumbustion engines. 6). Fear of clean, cheap, nuclear power.
7). Large motor homes, large motor vehicles. 8). Not enough education, not enough mass transit, to many one occupant vehicles on the hi- way, speed limits that need to be reigned back in to the 55 M.P.H range, to many folks leaving the cities and moving to the burbs or rural areas, thus creating "need" for more gasoline, diesel, L.P. gas to power their modes of transportation. 9). Not enough mass extinctions on a planetary scale every 100 millions years or so. And finally number 10). To many good hearted people with the right ideas trying to get the word out on conservation, all those voices heard as many many voices, when they need to compile their knowledge base and band together for the common good to form one large voice, one that will be heard and understood by those whom are ready to listen.

Answer 2

It's not so much that petroleum is being depleted, it's CHEAP oil that's being depleted. As oil is removed from a reservoir it gets more expensive to produce, you have to start doing things like putting water or gas down the hole to force the oil out, or using a mechanical pump to bring it to the surface. When you bring it up it gets mixed with more and more water that you have to spend money to separate out. Eventually it costs more to produce than you can sell it for and an oil field gets shut down. In every abandoned oil field there is always a lot of oil left, but if it would cost $400 a barrel to produce but you could only sell it for $70, what would be the point?

Answer 3

exaclty:
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for the original article "THe end of Cheap Oil"

check this link

http://www.gulland.ca/depletion/endofcheapoil.htm

Answer 4

We're burning it up in our cars, airplanes, electrical plants, etc.