Sensitivity and Scenario-Based Assessment of Petroleum Investment Resilience Under Nigeria’s PIA 2021 Fiscal Regime
DOI:
https://doi.org/10.54536/ajenr.v5i1.8783Keywords:
Investment Resilience, Petroleum Industry Act, Petroleum Investment, Scenario Base Analysis, Sensitivity Analysis, Upstream Oil & Gas SectorAbstract
The Nigeria Petroleum Industry Act (PIA) 2021 introduced a revised fiscal framework aimed at improving investment attractiveness and strengthening transparency and revenue generation in Nigeria’s upstream petroleum sector. However, petroleum investment projects are exposed to uncertainties from market factors, economic, and operational conditions, creating the need to access the upstream oil and gas petroleum investment resilience under the PIA 2021 fiscal regime. Using a Python-based Economic Evaluation and Investment Decision Support Tool (EEIDST) which was built by incorporating the fiscal provisions of PIA 2021, sensitivity and scenario-base analyses were conducted to examine the effects of varying the prices of crude oil and natural gas, hydrocarbon production, CAPEX, and OPEX on Net Present Value (NPV), Internal Rate of Return (IRR), Profitability Index (PI), Payback Period, and Government Take. The results from the sensitivity analysis showed that crude oil and hydrocarbon production are key drivers of project economic performance. At the base-case oil price of US$70/bbl, the project generated an NPV of $83.78 million, but at an oil price of $80/bbl, the NPV increased to $130.51 million, while it reduced to $26.95 million at an oil price of $60/bbl. Similarly, a 20% increase in the production relative to the base-case, generated a positive NPV of $127.47 million, which decreased to $30.73 million when production declined by 20%. The findings in this study indicates that the investment resilience of PIA 2021 is highly responsive to fluctuations in prices of crude oil and production. This study quantitatively evaluates the resilience of petroleum investment projects, which could be applied by stakeholders in the upstream oil and gas sector.
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Adeogun, O., Iledare, O., & Idowu, A. J. (2018). Profitability of marginal oilfields in a low oil price regime: A stochastic modelling analysis (SPE-193466-MS). Society of Petroleum Engineers. https://doi.org/10.2118/193466-MS
Adebisi, S. A., & Ezebuiro, K. N. (2023). Analysis of the Petroleum Industry Act and its impact on the Nigerian oil and gas sector. Gusau International Journal of Management and Social Sciences, 6(3), 293–312. https://doi.org/10.57233/gijmss.v6i3.16
Adeogun, O., Iledare, O., & Idowu, A. J. (2018). Profitability of marginal oilfields in a low oil price regime: A stochastic modelling analysis (SPE-193466-MS). Society of Petroleum Engineers. https://doi.org/10.2118/193466-MS
Amiesa, F. S., Iledare, O., & Joseph, A. A. (2018). Economic evaluation of the dual petroleum tax system proposed in the 2017 Nigeria fiscal reform framework (SPE-193391-MS). Society of Petroleum Engineers. https://doi.org/10.2118/193391-MS
Begg, S. H., & Smit, N. (2007). Sensitivity of project economics to uncertainty in type and parameters of price models (SPE-110812-MS). Society of Petroleum Engineers. https://doi.org/10.2118/110812-MS
Benninger, T., Devlin, D., Camero Godinez, E., & Vernon-Lin, N. (2024). Cash flow analysis of fiscal regimes for extractive industries. International Monetary Fund Working Paper WP/24/89. https://doi.org/10.5089/9798400274329.001
Coddou, G., Hammond, R., Laaveg, M., Ogunyomi, B., Raeder, A., Svensson, M., & Xu, P. (2018). Fiscal System Modeling Framework. Society of Petroleum Engineers. https://doi.org/10.2118/162893-MS
Daniel, P., Keen, M., & McPherson, C. (Eds.). (2010). The taxation of petroleum and minerals: Principles, problems and practice. Routledge.
Danmadami, A., Iyalla, I., Oluyemi, G., & Ogolo, O. (2023). Evaluation of the profitability of marginal field investment using the fiscal provisions in the Petroleum Industry Act (PIA) 2021 (SPE-217218-MS). Society of Petroleum Engineers. https://doi.org/10.2118/217218-MS
Luo, D., & Yan, N. (2010). Assessment of fiscal terms of international petroleum contracts. Petroleum Exploration and Development, 37(6), 756–762. https://doi.org/10.1016/S1876-3804(11)60006-3
Echendu, J. C. (2011). Deepwater Petroleum Exploration and Production in the Gulf of Guinea: comparative analysis of petroleum fiscal systems performance (Doctoral dissertation).
Echendu, J. C., Iledare, O. O., Akinlawon, A. J., & Idowu, A. J. (2018, August 6–8). Replacing petroleum profit tax with a dual petroleum tax system: Implication on petroleum project economics in Nigeria [Conference paper]. SPE Nigeria Annual International Conference and Exhibition. https://doi.org/10.2118/193453-MS
Farimani, F. M., Mu, X., Sahebhonar, H., & Taherifard, A. (2020). An economic analysis of Iranian petroleum contract. Petroleum Science, 17, 1451–1461. https://doi.org/10.1007/s12182-020-00484-5
Idris, A. (2025). Fiscal Management and Economic Diversification in oil-dependent Economics: Lessons from Nigeria, Canada, and Saudi Arabia, American Journal of Economic and Business Innovation, 4(2), 1-10. https://doi.org/10.54536/ajebi.v4i2.4084
Iledare, O. (2022, First Quarter). Petroleum Industry Act 2021 and rationale for petroleum subsidy removal in Nigeria. Valuechain Magazine / Energy Focus Report. https://www.energyfocusreport.com/petroleum-industry-act-2021-and-rationale-for-petroleum-subsidy-removal-in-nigeria/
Iwok, U. U., & Daniel, U. E. (2021). The Petroleum Industry Act (2021) and Nigeria’s fiscal regime: A desk review of taxation, governance, and revenue mobilization. International Journal of Finance, Management and Governance, 2(2). https://doi.org/10.67487/ijfmg.v2i2.273.
Johnston, D. (2003). International petroleum fiscal systems and production sharing contracts. PennWell Books.
Johnston, D., & Johnston, D. (2015, February). Fundamental petroleum fiscal considerations. Oxford Institute for Energy Studies. https://www.oxfordenergy.org/wpcms/wp-content/uploads/2015/02/Fundamental-Petroleum-Fiscal-Considerations.pdf
Kalagbor, C., Oriji, B. A, Asianuba, B. I., (2026). Digital Petroleum and Economic Evaluation under Nigeria’s Petroleum Industry Act: Development and Validation of an Integrated Economic Evaluation and Investment Support Tool. International Journal of Research and Scientific Innovation, 13(9). https://doi.org/10.51244/IJRSI.2026.1309000076.
Nwosi-Anele, A. S., & Iledare, O. (2024). Assessing the attractiveness and progressiveness of the fiscal framework in the 2021 Nigeria Petroleum Industry Act under a zero-carbon emission strategy (SPE-221707-MS). Society of Petroleum Engineers. https://doi.org/10.2118/221707-MS
Obakhume, K. A., Igwe, S. R., Olugbeje, O. T., & Adeyemi, O. V. (2026, August). Shifting the balance: Fiscal attractiveness of Nigeria’s petroleum regimes before and after the Petroleum Industry Act (Paper No. SPE-234854-MS) [Conference paper]. SPE Nigeria Annual International Conference and Exhibition. https://doi.org/10.2118/234854-MS
Osho, G. S., Ojumu, O., Tandon, S., & Oloyede, B. (2026). Monte Carlo-based forecasting and optimization of oil price and production: Evidence from Nigeria’s petroleum sector. Journal of Applied Business and Economics, 28(1). https://doi.org/10.33423/jabe.v28i1.8077
Osmundsen, P., & Wittemann, A. (2024). Petroleum development projects. Concept selection, taxation and recovery rate. Resources Policy, 95, Article 105171. https://doi.org/10.1016/j.resourpol.2024.105171
Petroleum Industry Act, 2021 (Nigeria). https://pia.gov.ng/wpcontent/uploads/2022/08/PIA-2021_compressed-1.pdf
Tordo, S., Johnston, D., & Johnston, D. (2010). Petroleum exploration and production rights : allocation strategies and design issues (English). World Bank working paper ; no. 179 Washington, DC: World Bank. http://documents.worldbank.org/curated/en/785881468336848695
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