Stories tagged with "Net Hubbert"
The Net Hubbert Curve: What Does It Mean?
Posted by David Murphy on June 22, 2009 - 10:30am in The Oil Drum: Net Energy
Topic: Supply/Production
Tags: cutler cleveland, david murphy, eroi, gross energy, m. king hubbert, net energy, net hubbert, original, peak oil, positive feedback [list all tags]
Cutler Cleveland of Boston University has reported that the EROI of oil and gas extraction in the U.S. has decreased from 100:1 in the 1930’s to 30:1 in the 1970’s to roughly 11:1 as of 2000 (Figure 1). But beyond the fact that society receives currently around 11 barrels of oil for every 1 barrel that it spends getting that oil, What does this mean?

Figure 1. Plot of three estimations of EROI for U.S. oil and gas.


k Nation (Jim Kunstler)






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