Energy extraction economics must account for declining Energy Return on Investment (EROI) over time, as physical depletion creates rising real costs that standard financial models systematically underestimate by assuming constant extraction efficiency.
heuristicenergy economicsfinancial modelingoil and gas valuationconviction · 0.70domains · 3
Evidence for
Conclusions the firm has recorded that cite this principle or sit in its supporting cluster.
- Standard oil & gas DCF models assume energy return on investment (EROI) remains constant throughout the project lifecycle, which may underestimate depletion effects and overstate long-term cash flows in mature fields.tier · open · cited by principle draft
- Models that assume flat or falling extraction costs for oil & gas are methodologically invalid because they ignore energy return on investment (EROI) decline — a physical constraint that forces rising real extraction costs over time.tier · open · cited by principle draft
- When modeling long-duration energy assets, current EROI (Energy Return on Investment) ratios systematically underestimate future performance degradation over the asset's operational lifespan.tier · open · cited by principle draft
- Energy Return on Investment (EROI) decreases over a well's lifecycle as depletion raises lifting costs, compresses margins, and shortens the remaining economic production window.tier · open · cited by principle draft
- US oil energy return on investment (EROI) has declined by an order of magnitude over the past century, from approximately 100:1 in 1919 to 10:1 today, indicating diminishing marginal returns in domestic oil extraction efficiency.tier · open · cited by principle draft
Evidence against
Open-tier conclusions in the same cluster — claims the firm has not yet promoted to firm or founder confidence, and which would weaken this principle if they hold up.
- When energy return on investment (EROI) reaches 10:1, extraction overhead consumes 10% of total energy output, creating a structural drag coefficient that compounds across all downstream economic activities dependent on that energy source.tier · open
- Deepwater oil extraction yields an energy return on investment (EROI) of approximately 10:1, meaning each unit of energy invested in extraction returns 10 units of usable energy.tier · open
Decisions this informs
Example decisions the firm would consult this principle for. Each links to the conclusion that registered the example.
- Flag DCF models that don't incorporate EROI decline when evaluating mature field acquisitions.
- Adjust standard O&G valuation templates to include EROI degradation factors for projects >10 year life.
- Compare flat-EROI DCF outputs against dynamic-EROI models for investment committee decisions.
- Reject energy investment when projected EROI falls below 15:1 to maintain sufficient margin above the 10:1 structural drag threshold.
- Model economic scenarios assuming 10% energy tax when base case EROI assumptions hit 10:1.
- Flag energy transition plans that don't account for EROI degradation effects on industrial capacity.
- Compare deepwater project viability against solar (EROI ~20:1) when evaluating energy portfolio allocation.
- Set minimum EROI threshold of 8:1 for deepwater investments to maintain buffer above the 10:1 baseline.
- Reject deepwater prospects where geological complexity suggests EROI below 7:1 based on the 10:1 industry standard.
- Reject DCF models for oil majors that project flat marginal costs beyond 2030 without EROI adjustment.
- Flag commodity forecasts that show declining real extraction costs as methodologically suspect.
- Require EROI decline curves in any long-term energy transition model before accepting conclusions.
- Apply EROI degradation factor of 2-3% annually when modeling 20+ year oil field acquisitions.
- Reject energy asset models that assume static EROI over multi-decade horizons.
- Haircut projected returns by 15-25% for energy assets modeled with current-day EROI assumptions.
- Model declining EROI when evaluating acquisition of mature oil assets with 5+ year production history.
- Set workover investment thresholds based on projected EROI trajectory rather than current production rates.
- Price secondary recovery projects using EROI decline curves rather than static economics.
- Factor 10x EROI decline into long-term oil price forecasting models.
- Evaluate renewable energy investments using EROI comparisons to current fossil fuel baselines.
- Assess oil company capex efficiency against historical EROI degradation trends.
Lineage
The temporal lineage view stitches every step that produced this principle — sources, claim extraction, methodology profiles, reviews — into a single trace.