Corrigendum to “Total organic carbon (TOC) quantification using artificial neural networks: Improved prediction by leveraging XRF data” [J. Petrol. Sci. Eng. (2021) 1–15](S0920410521009554)(10.1016/j.petrol.2021.109302)

The authors regret <After taking fully consideration, we would like to add more co-authors after John Humphrey and before Yaser Alzayer. Their name is Abduljamiu O. Amao and Ignatius Argadestya as shown below. Their contribution is significant to the manuscript and their name should be in the author list not acknowledgment: Septriandi A. Chan^a*, Amjed M. Hassan^a, Muhammad Usman^a,b, John D. Humphrey^a, Abduljamiu O. Amao^a, Ignatius Argadestya^a, Yaser Alzayer^c, Fabian Duque^d Also we would like to delete sentence in the acknowledgment that stated: Abduljamiu Amao and Ignatius Argadestya are thanked for their assistance with graphics. Lastly, update CRediT authorship contribution statement Septriandi A. Chan: Conceptualization, Methodology, Validation, Investigation, Resources, Data curation, Writing - original draft, Visualization, Writing - review & editing. Amjed M. Hassan: Writing – Original draft, Methodology, Software, Formal analysis, Investigation, Data Curation, Visualization. Muhammad Usman: Writing - original draft, Methodology, Resources. John D. Humphrey: Validation, Writing - review & editing, Supervision, Project administration, Funding acquisition. Abduljamiu O. Amao: Software, Formal analysis, Data Curation, Writing - review & editing. Ignatius Argadestya: Writing - original draft, Visualization. Yaser Alzayer: Validation, Resources, Data Curation, Writing - Review & Editing, Supervision, Project administration, Funding acquisition. Fabian Duque: Validation, Resources, Writing - Review & Editing, Supervision, Project administration>. The authors would like to apologise for any inconvenience caused.