2012年-IMF国际货币组织全球_Modeling_the_Impact_of_Taxes_on_Petroleum_Exploration_and_Development_46页_1mb

报告摘要

Summary of "Modeling the Impact of Taxes on Petroleum Exploration and Development"

Core Content

This working paper presents a simplified yet comprehensive model to analyze the impact of taxation on petroleum exploration and development. The model is designed to assess how different fiscal regimes influence investor behavior, resource recovery, and the distribution of risk and returns between the investor and the host government (HG). It integrates both exploration and development stages, allowing for an analysis of the joint optimization of investments in these phases.

The paper explores various fiscal instruments, including royalties, corporate income taxes, production sharing agreements, and resource rent taxes, and evaluates their effects on the economic viability and efficiency of resource exploitation. It also considers the role of enhanced oil recovery (EOR) and how tax policies can affect the decision to implement EOR and the timing of such investments.

Main Points

A. Resource Development

The model assumes that oil production follows a primary phase with a fixed decline rate over time.
The primary recovery rate is estimated at 33% of the original oil-in-place (OIP), with the remaining reserves potentially recoverable through EOR.
The optimal development intensity is determined by balancing the benefits of faster extraction against the cost of investment.
The model accounts for the investor's ability to delay initial development based on expectations of future oil prices and costs.
The model is implemented in a simple Excel spreadsheet, allowing for annual projections of cash flows and tax liabilities, and can be adapted to quarterly schedules.

B. Resource Exploration

Exploration is modeled as a sequence of wells, with each well having a known cost and a probability of success.
The probability of success is divided into two components: "geologic" (probability of hydrocarbon presence) and "technological" (probability of success given hydrocarbon presence).
If a field is not discovered after a certain number of exploratory wells, it may be abandoned based on the perceived economic viability.
Fiscal regimes can impact exploration incentives by altering the after-tax cost of exploration and the risk-return trade-off.
Ring-fence provisions prevent the use of exploration costs to defer tax liabilities from existing projects, thereby increasing the after-tax cost of exploration.

Key Information

Fiscal Regimes Considered

Royalties: Affects the value of developed fields and the incentive to implement EOR.
Corporate Income Tax: Influences the net present value (NPV) and the investor's rate of return.
Production Sharing Agreements (PSAs): Determine the share of production revenue between the investor and the host government.
Resource Rent Tax: Affects the distribution of resource rents and the investor's decision-making process.

Model Structure

The model integrates exploration and development into a "full-cycle" analysis.
It incorporates price volatility and financial risk by using a mean-reverting random price process calibrated to historical oil prices.
The model allows for the evaluation of how tax policies influence investment timing, intensity, and risk sharing between the investor and the host government.

Results Overview

The model shows that tax distortions can significantly affect the intensity of development and the timing of EOR.
Fiscal progressivity can influence the profitability index and the distribution of risk.
High royalty rates may lead to early abandonment and reduced exploration efforts.
The impact of fiscal design on the optionality of EOR is examined, showing how tax policies can either encourage or discourage the implementation of EOR.
Exploration incentives are affected by the tax regime, particularly through ring-fence provisions that increase the after-tax cost of exploration.

Conclusion

The model provides a user-friendly and simple framework for understanding the impact of taxes on petroleum investment decisions.
It highlights the importance of integrated analysis of exploration and development, recognizing the interconnected nature of investment choices.
The results suggest that fiscal design plays a critical role in shaping exploration behavior, development intensity, and the distribution of risk and returns.
The model contributes to the broader discussion on tax policy evaluation in the extractive industries, offering a more robust tool than many existing models.

Key Tables and Figures

Table 1: Guide to Fiscal Regimes and Background Parameters
Table 2: Background Parameters
Table 3: Impact of EOR on Resource Development and Recovery
Table 4: Impact of Oil Price on Resource Development and Recovery
Table 5: Marginal Chance of Exploratory Success
Figure 1: Impact of EOR Effectiveness on Optimal Development
Figure 2: Impact of EOR on Resource Recovery and Value
Figure 3: Resource Recovery by Fiscal Regime and Phase
Figure 4: Total Net Present Value by Fiscal Regime
Figure 5: Optimal Development Programs, Price Impact
Figure 6: Fiscal Impacts on Timing of EOR and Abandonment
Figure 7: Incentive to Delay Development: High Cost Fields
Figure 8: Royalties Create Timing Conflicts in High Cost Fields
Figure 9: Government Take by Fiscal Regime
Figure 10: Effective Marginal Tax Rates
Figure 11: Risk Sharing (Coefficient of Variation in NPV)
Figure 12: Profitability Index versus Risk
Figure 13: NPV versus Risk
Figure 14: The Option to Implement EOR
Figure 15: Value of Option to Cancel EOR
Figure 16: Impact of Price Simulations on IOC NPV
Figure 17: Maximum Exploratory Failures Before Abandonment
Figure 18: Full Cycle IOC NPV
Figure 19: Distorted Resource Exploration: Exploration and Development Stages
Figure 20: Tax Impact on Total Resource Value (Full Cycle)
Figure 21: Government Take (Full Cycle)