Stories tagged with "Net Hubbert"

The Net Hubbert Curve: What Does It Mean?

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.