Analysis of the Delay Risk of the Engineering, Procurement, Construction, and Commissioning (EPCC) Phases in Oil and Gas Industry Projects

Munawir; Rosmariani Arifuddin; M. Asad Abdurrahman

doi:10.48084/etasr.13969

Authors

Munawir Department of Civil Engineering, Hasanuddin University, Gowa, Indonesia
Rosmariani Arifuddin Department of Civil Engineering, Hasanuddin University, Gowa, Indonesia
M. Asad Abdurrahman Department of Civil Engineering, Hasanuddin University, Gowa, Indonesia

Volume: 16 | Issue: 1 | Pages: 32015-32023 | February 2026 | https://doi.org/10.48084/etasr.13969

Received: 9 August 2025 | Revised: 22 September 2025, 6 October 2025, and 13 October 2025 | Accepted: 18 October 2025 | Online: 9 February 2026

Corresponding author: Rosmariani Arifuddin

Abstract

EPCC projects in the oil and gas industry are highly complex and carry significant risks of delays and cost overruns. This study aims to identify and analyze the dominant delay risk factors across each phase of EPCC, using the Matindok Gas Development Project in Central Sulawesi, Indonesia, as a case study. The project was originally scheduled for completion within 26 months, but experienced a time extension of up to 12 months. Data collection was conducted through a literature review and the distribution of questionnaires. Risk evaluation was performed based on the probability and impact of each factor using the Risk Priority Number (RPN) method. The results show that the most critical risk factors include design changes by the project owner during the engineering phase (RPN = 13.21), poor cash flow of the parent company in the procurement phase (RPN = 13.2), work sequence conflicts in the field during the construction phase (RPN = 11.23), and incomplete cross-discipline work during the commissioning phase (RPN = 9.93). These findings highlight the importance of implementing integrated risk management strategies across all EPCC phases to prevent delays and ensure timely project completion.

Keywords:

risk, EPCC project, RPN, engineering, procurement, construction, commissioning

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References

W. Qianqing and X. Yiqing, "A review of research related to risk management of EPC engineering projects and future prospects," Academic Journal of Business & Management, vol. 5, no. 20, pp. 25–34, 2023. DOI: https://doi.org/10.25236/AJBM.2023.052005

R. G. Andaru and T. J. Wahyu Adi, "Risk Analysis of E-Procurement Process of EPC Construction Project Based On Risk Management," Jurnal Indonesia Sosial Teknologi, vol. 5, no. 3, Mar. 2024, Art. no. 1286. DOI: https://doi.org/10.59141/jist.v5i3.985

F. Firdausy, "Risk Analysis And Recommendations To Improve The Logistics Cost Performance Of The EPC Project At Remote Area," Journal Research of Social Science, Economics, and Management, vol. 2, no. 10, pp. 2428–2448, Feb. 2023. DOI: https://doi.org/10.59141/jrssem.v2i10.442

T. U. Natasasmita, D. E. Herwindiati, and B. Anondho, "Current Challenges of Multidisciplinary Industrial Construction Projects: A Study of the EPC Design Model on Cost Performance in Indonesia," International Journal of Structural and Civil Engineering Research, vol. 13, no. 1, pp. 14–23, 2024. DOI: https://doi.org/10.18178/ijscer.13.1.14-23

P. T. Nguyen and P. C. Nguyen, "Risk Management in Engineering and Construction: A Case Study in Design-Build Projects in Vietnam," Engineering, Technology & Applied Science Research, vol. 10, no. 1, pp. 5237–5241, Feb. 2020. DOI: https://doi.org/10.48084/etasr.3286

N. H. Khairullah, M. A. Hilal, and A. Mohammed, "Identification of the main causes of risks in engineering procurement construction projects," Journal of the Mechanical Behavior of Materials, vol. 31, no. 1, pp. 282–289, Jan. 2022. DOI: https://doi.org/10.1515/jmbm-2022-0029

M. A. Akhund, A. R. Khoso, A. A. Pathan, H. U. Imad, and F. Siddiqui, "Risk Attributes, Influencing the Time and Cost Overrun in Joint Venture Construction Projects of Pakistan," Engineering, Technology & Applied Science Research, vol. 8, no. 4, pp. 3260–3264, Aug. 2018. DOI: https://doi.org/10.48084/etasr.2203

Sarwani, I. Baihaqi, and C. Utomo, "Causes of Delay in EPC Projects: The Case of Indonesia," International Journal on Advanced Science, Engineering and Information Technology, vol. 14, no. 2, pp. 618–628, Apr. 2024. DOI: https://doi.org/10.18517/ijaseit.14.2.19744

The Standard for Project Management and a Guide to the Project Management Body of Knowledge. USA: Project Management Institute, 2021.

R. F. Wagner, "EPC 4.0: The quest for reducing CAPEX in EPC projects," Organization, Technology and Management in Construction: an International Journal, vol. 12, no. 1, pp. 2245–2255, Jan. 2020. DOI: https://doi.org/10.2478/otmcj-2020-0020

International Federation of Consulting Engineers, Ed., Conditions of contract for EPC/turnkey projects: general conditions, guidance for the preparation of particular conditions, forms of letter of tender, contract agreement and dispute adjudication/avoidance agreement, Second edition. Switcherland: FIDIC, 2017.

Q. Li, Y. Guo, B. Wang, Y. Chen, J. Xie, and C. Wen, "Research on Risk Evaluation of Hydropower Engineering EPC Project Based on Improved Fuzzy Evidence Reasoning Model," Systems, vol. 11, no. 7, July 2023, Art. no. 327. DOI: https://doi.org/10.3390/systems11070327

V. Abma, V. A. Fadhilah, I. M. Rustanti, F. Nugraheni, and T. N. Sulistyantoro, "Identifikasi dan Analisis Tingkat Risiko Proyek EPC Tangki Timbun dan Submarine Pipeline TBBM Tanjung Batu," 5TH CEEDRIMS 2024, vol. 5, no. 2, pp. 281–288, Aug. 2024.

Q. Wang and J. Wang, "Research on Key Risk Factors and Risk Transmission Path of Procurement in International Engineering Procurement Construction Project," Buildings, vol. 12, no. 5, May 2022, Art. no. 534. DOI: https://doi.org/10.3390/buildings12050534

"The 6th International Conference on Management of Technology, Innovation, and Project (MOTIP 06)," Program Pascasarjana Manajemen Teknologi ITS.

A. Alameri, A. S. a. M. Alhammadi, A. H. Memon, I. A. Rahman, and N. a. N. Nasaruddin, "Assessing the Risk Level of the Challenges Faced In Construction Projects," Engineering, Technology & Applied Science Research, vol. 11, no. 3, pp. 7152–7157, June 2021. DOI: https://doi.org/10.48084/etasr.4020

Tari Yvonne Elete, Emmanuella Onyinye Nwulu, Ovie Vincent Erhueh, Oluwaseyi Ayotunde Akano, and Oluwaseyi Ayotunde Akano, "Early startup methodologies in gas plant commissioning: An analysis of effective strategies and their outcomes," International Journal of Scientific Research Updates, vol. 5, no. 2, pp. 099–115, June 2023. DOI: https://doi.org/10.53430/ijsru.2023.5.2.0049

C. R. Vorst, D. S. Priyarsono, and A. Budiman, Manajemen Risiko Berbasis SNI ISO 31000. 2024.

S. A. Othman, D. K. I. Jaff, and A. Oztas, "Development of a Risk Breakdown Structure in Mega Projects based on Different Case Studies," Engineering, Technology & Applied Science Research, vol. 14, no. 4, pp. 15625–15630, Aug. 2024. DOI: https://doi.org/10.48084/etasr.7585

Project Management Institute, "A guide to the project management body of knowledge (PMBOK Guide)," 2000.

K. Kabirifar and M. Mojtahedi, "The impact of Engineering, Procurement and Construction (EPC) Phases on Project Performance: A Case of Large-scale Residential Construction Project," Buildings, vol. 9, no. 1, Jan. 2019, Art. no. 15. DOI: https://doi.org/10.3390/buildings9010015

J. U. D. Hatmoko and R. R. Khasani, "Mapping Delay Risks of EPC Projects: A Case Study of A Platform and Subsea Pipeline of An Oil and Gas Project," IOP Conference Series: Materials Science and Engineering, vol. 598, no. 1, Dec. 2019, Art. no. 012095. DOI: https://doi.org/10.1088/1757-899X/598/1/012095

F. D. Vito, "Pre-startup Safety Review Performance and Close-out Management for a New Licensed Petrochemical Plant," hemical Engineering Transactions, vol. 82, pp. 25–30, Oct. 2020.

A. Kahfi, B. P. K. Bintoro, and R. E. Nugroho, "Risk Factor Analysis of Planning Stage of Lumpsum Hydropower EPC Project Impacted to Quality and Time Performance," International Journal of Science and Research (IJSR), vol. 9, no. 12, pp. 249–257, Dec. 2020.

D. Procházková and J. Prochazka, "Risk Management Plan for Process Associated with Technical Facility Designing, Construction and Commissioning | Request PDF," in Proceedings of the 29th European Safety and Reliability Conference (ESREL), 2020. DOI: https://doi.org/10.3850/978-981-14-8593-0_4053-cd

M. S. Alkatiri, L. S. Riantini, and B. O. B. Sentosa, "Risk Identification And Analysis In Engineering, Procurement, And Construction (EPC) Projects At Mining Facilities By PT. XYZ," International Journal Of Science, Technology & Management, vol. 6, no. 4, pp. 675–678, July 2025. DOI: https://doi.org/10.46729/ijstm.v6i4.1323

D. F. P. Setiadi, R. Nurcahyo, and Farizal, "Critical success factors during execution of EPCC national strategic project in Indonesia: 11th Annual International Conference on Industrial Engineering and Operations Management, IEOM 2021," Proceedings of the 11th Annual International Conference on Industrial Engineering and Operations Management, 2021, pp. 565–575, 2021.