The many individuals who have worked as part of the Widuri team and led to its current understanding are thanked for their contribution. Specifically, Bill Harmony is acknowledged for his work on seismic interpretation and John Girgis is thanked for the initial opportunity to work Widuri field. The paper benefited from stratigraphic work by Mike Gardner and coworkers at CSM, and the comments of Henry Posamentier. However, responsibility for the interpretation lies with the author. Thanks also to Fauzi Alkatiri, John Armon, Wade Bard, Gunawan Juniarto, Diah Hanggoro, Bill Harmony, Lupi Harvidya, Mohamed Hegazy, Wahyu Hermukti, Romina Himawan, Sri Lestari, Pujianto Lukito, Susandhi Ridwan, Rini Saputra, Ichsan Syarkawi, Budi Setiawan, Steve Smith, and Ray Young for stimulating discussions on Widuri field. Geological cross sections were made by John Armon and Idam Mustika, and the data for the seismic amplitude crossplots, pressure crossplots, and production data were supplied by Wade Bard, Lupi Harvidya, Wahyu Hermukti, Indhira Regina, and Rini Saputra. The seismic data were acquired and processed by Geco, El-Nusa, Western Geophysical, and Detect Geophysical. The initial paper was improved by the reviews of Matthew Pranter, Jack Thomas, and an anonymous reviewer. CNOOC, Pertamina, and partners of CNOOC Southeast Sumatra B. V. are thanked for the permission to publish and the sponsorship of this article.