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Transcript of The Price Elasticity of US Shale Oil Reserves · PDF fileThis Paper is not About the Breakeven...
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The Price Elasticity of US Shale Oil ReservesDr. James L. Smith
Southern Methodist University, Dallas TX
EIA Energy Finance Workshop
September 28, 2016
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Research Objectives
• Estimate price elasticity of the volume of US shale oil
reserves, by play.
• Estimate price elasticity of the number of viable shale oil
drilling sites, by play.
• Estimate potential for infill drilling to augment the volume
of reserves.
• Estimate the economic threshold for completing
investment in DUCs.
• Estimate sensitivity of production from mature shale oil
wells to low prices.
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This Paper is not About the Breakeven Price of US
Shale Oil
• 80% of potential U.S. tight oil capacity additions in 2015 remain
resilient at price as low as $70/barrel.
- IHS Online, Nov. 20, 2014.
• Breakeven price for “some” US shale oil is $30/bbl.
- Ali Naimi, PIW, Jan. 5, 2015.
• US shale oil costs are around $50/barrel at present.
- Mike Winter, Societe Generale, PIW, Oct. 12, 2015
• Bone Spring, Wolfcamp, & Scoop: breakeven = $40/barrel,
Eagle Ford: breakeven = $50/barrel
- WoodMackenzie, PIW, Aug. 8, 2016.
• Breakeven cost now under $30 in Permian’s Delaware and Midland
basins.
- Wells Fargo, PIW, Sept. 19, 2016
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Breakeven Price Varies Across Shale Oil Plays
KLR Group, reported by Oil & Gas 360, May 23, 2016.
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There is no Single Breakeven Price,
Not Even Within a Single Play
It is perhaps better to think of break-even as a bell-shaped curve, where some wells in a shale play can break even at $30, 50% break even at <$60/bbl (for example), but then some small fraction on the far side of the curve don’t even break even when oil prices are at $100/bbl.
- Robert Rapier, Forbes/Energy, Feb. 29, 2016
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Heterogeneous Well Productivity Within a Play
0.0
0.5
1.0
1.5
2.0
0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
EUR (million barrels)
Bakken Core Lognormal EUR Distribution
mean=.725
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The “Average” Well is not “Typical”
0.0
0.5
1.0
1.5
2.0
0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
EUR (million barrels)
Bakken Core Lognormal EUR Distribution
mean=.725median=.402
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At $90, Any Well Above the B/E EUR is Viable
0.0
0.5
1.0
1.5
2.0
0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
EUR (million barrels)
Bakken Core Lognormal EUR Distribution
mean=.725median=.402
B/E @$90=.504
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Average Size of Those Wells is 1.406 mmb
0.0
0.5
1.0
1.5
2.0
0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
EUR (million barrels)
Bakken Core Lognormal EUR Distribution
mean=.725median=.402
B/E @$90=.504
E[EUR|EUR>.504]=1.406
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But Only 42% of Potential Drill Sites Meet the Criterion
0.0
0.5
1.0
1.5
2.0
0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
EUR (million barrels)
Bakken Core Lognormal EUR Distribution
mean=.725median=.402
B/E @$90=.504
E[EUR|EUR>.504]=1.406
Pr[EUR>.504]=42%
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81% of Recoverable Resources are Viable at $90
0.0
0.5
1.0
1.5
2.0
0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
EUR (million barrels)
Bakken Core Lognormal EUR Distribution
mean=.725median=.402
B/E @$90=.504
E[EUR|EUR>.504]=1.406
Pr[EUR>.504]=42%
E[Reserves @ $90] =
42%x1.4060.725 = 81%
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Breakeven Well Productivity, EURP
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
$20 $40 $60 $80 $100
Bre
ake
ven
EU
R (
10
00
bar
rels
)
WTI ($ per barrel)
2016 Cost 2014 Cost Dynamic Cost
Bakken Core
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Goal #1: Chart Reserves as Function of Price
0.47
0.500.45
0.410.38
0.35
0.31
0.27
0.25
0.22
0.20
$0
$10
$20
$30
$40
$50
$60
$70
$80
$90
$100
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
$/b
arre
l, W
TI
Percent of Recoverable Resources that are Economic(Dynamic Cost scenario)
Bakken Core
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Goal #2: Chart the Number of Viable Drill Sites
0.93
1.03 0.97
0.91 0.86
0.81
0.76
0.70
0.65
0.60
0.57
$0
$10
$20
$30
$40
$50
$60
$70
$80
$90
$100
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
$/b
arre
l, W
TI
Viable Drill Sites as Percent of Total(Dynamic Cost scenario)
Bakken Core
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Related Studies of Shale Oil Supply
• Browning, et al., 2014-2016 (UT Bureau of Economic Geography)
– Process-oriented model tied to specific geology of resource base and variation in
productivity of wells.
• Newell, Prest, and Vissing, 2016 (NBER)
• Lasky, 2015 (CBO)
– Econometric projections based on time-series trends. No geology, no depletion,
no variation in productivity of wells. Steady-state “manufacturing” model.
• Kleinberg, et al., 2016 (MIT CEEPR)
– No “model” but an explicit discussion of variation in productivity of wells.
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Scope of the Analysis: Oil Plays
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Scope of the Analysis: Combo Plays
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Estimation of the Lognormal Parameters
• Coefficient of variation (mean/std.dev) is based on
USGS lognormal estimates.
– This immediately determines s.
– Hypothesis: s has not changed despite technological progress.
• The mean EUR is based on expert industry judgment.
– Given the s from above, this determines m.
– Hypothesis: m has increased due to technological progress.
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The Impact of Low Prices on Reserves
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The Price Inelasticity of Shale Oil Reserves
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The Impact of Price on Viable Drill Sites
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The Price Elasticity of Viable Drill Sites
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Breakeven Prices for Mean vs. Median Wells
$-
$40
$80
$120
$160
$200
Figure 14: Breakeven Price for Mean vs. Median Well Productivity: 2014 Cost Scenario
Mean Median
Shale Oil Plays
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Backward Bending Supply from Combo Plays
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Infill Drilling Constitutes Play within a Play
Primary wells: 𝑬𝑼𝑹~𝚲 𝝁, 𝝈
Infill wells: 𝑬𝑼𝑹𝒊𝒏𝒇𝒊𝒍𝒍 = 𝜹 × 𝑬𝑼𝑹
Infill performance: 𝜹~𝚲 𝝁𝒊𝒏𝒇𝒊𝒍𝒍, 𝝈𝒊𝒏𝒇𝒊𝒍𝒍
Thus: 𝑬𝑼𝑹𝒊𝒏𝒇𝒊𝒍𝒍~ 𝚲 𝝁 + 𝝁𝒊𝒏𝒇𝒊𝒍𝒍, 𝝈𝟐 + 𝝈𝒊𝒏𝒇𝒊𝒍𝒍𝟐
To illustrate, assume: 𝒎𝒆𝒂𝒏𝜹 = 𝟎. 𝟒, 𝒔𝒕𝒅𝒆𝒗𝝈 = 𝟎. 𝟐
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Potential Contribution of Infill Drilling
$0
$10
$20
$30
$40
$50
$60
$70
$80
$90
$100
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
$/b
arre
l, W
TI
Reserves as % of Technically Recoverable Resources(Dynamic Cost scenario and Variable Infill Performance)
Primary Reserves Primary + Infill Reserves
Midland Basin: Spraberry
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Infill Drilling Hardly Affects Elasticity
0.00
0.25
0.50
0.75
1.00
$0 $20 $40 $60 $80 $100 $120
Elas
tici
tyI
Impact of Infill Drilling on Elasticity of Reserves(Dynamic Cost scenario and Variable Infill Performance)
Primary Wells Primary + Infill Wells
Midland Basin: Spraberry
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Thank You
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Play-Specific Coefficients of Variation
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Impact of Coefficient of Variation: Springer
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Impact of Coefficient of Variation: Bakken Core
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Impact of Coefficient of Variation: Eagle Ford Oil
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Impact of Coefficient of Variation: N. Wattenberg
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Impact of Coefficient of Variation: Spraberry
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Resilience of DUCs vs. New Wells (mean EUR )
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Resilience of DUCs vs. New Wells (median EUR)