How to format your references using the Petroleum citation style

This is a short guide how to format citations and the bibliography in a manuscript for Petroleum. For a complete guide how to prepare your manuscript refer to the journal's instructions to authors.

Using reference management software

Typically you don't format your citations and bibliography by hand. The easiest way is to use a reference manager:

PaperpileThe citation style is built in and you can choose it in Settings > Citation Style or Paperpile > Citation Style in Google Docs.
EndNoteFind the style here: output styles overview
Mendeley, Zotero, Papers, and othersThe style is either built in or you can download a CSL file that is supported by most references management programs.
BibTeXBibTeX syles are usually part of a LaTeX template. Check the instructions to authors if the publisher offers a LaTeX template for this journal.

Journal articles

Those examples are references to articles in scholarly journals and how they are supposed to appear in your bibliography.

Not all journals organize their published articles in volumes and issues, so these fields are optional. Some electronic journals do not provide a page range, but instead list an article identifier. In a case like this it's safe to use the article identifier instead of the page range.

A journal article with 1 author
I. Favero, Optomechanics: Listening to quantum grains of sound, Nature. 520 (2015) 441–442.
A journal article with 2 authors
S. Kang, T. Douglas, Biochemistry. Some enzymes just need a space of their own, Science. 327 (2010) 42–43.
A journal article with 3 authors
P. Scaffidi, T. Misteli, M.E. Bianchi, Release of chromatin protein HMGB1 by necrotic cells triggers inflammation, Nature. 418 (2002) 191–195.
A journal article with 4 or more authors
F.-L. Ng, M.M. Jaafar, S.-M. Phang, Z. Chan, N.A. Salleh, S.Z. Azmi, K. Yunus, A.C. Fisher, V. Periasamy, Reduced graphene oxide anodes for potential application in algae biophotovoltaic platforms, Sci. Rep. 4 (2014) 7562.

Books and book chapters

Here are examples of references for authored and edited books as well as book chapters.

An authored book
J.J. Provost, K.L. Colabroy, B.S. Kelly, M.A. Wallert, The Science of Cooking, John Wiley & Sons, Inc, Hoboken, NJ, 2016.
An edited book
J. Woicik, ed., Hard X-ray Photoelectron Spectroscopy (HAXPES), Springer International Publishing, Cham, 2016.
A chapter in an edited book
M. Babenko, I. Kolesnichenko, T. Starikovskaya, On Minimal and Maximal Suffixes of a Substring, in: J. Fischer, P. Sanders (Eds.), Combinatorial Pattern Matching: 24th Annual Symposium, CPM 2013, Bad Herrenalb, Germany, June 17-19, 2013. Proceedings, Springer, Berlin, Heidelberg, 2013: pp. 28–37.

Web sites

Sometimes references to web sites should appear directly in the text rather than in the bibliography. Refer to the Instructions to authors for Petroleum.

Blog post
J. Fang, Infected Bumblebees Self-Medicate In The Wild, IFLScience. (2015). (accessed October 30, 2018).


This example shows the general structure used for government reports, technical reports, and scientific reports. If you can't locate the report number then it might be better to cite the report as a book. For reports it is usually not individual people that are credited as authors, but a governmental department or agency like "U. S. Food and Drug Administration" or "National Cancer Institute".

Government report
Government Accountability Office, Information Technology: Census Bureau Testing of 2010 Decennial Systems Can Be Strengthened, U.S. Government Printing Office, Washington, DC, 2009.

Theses and dissertations

Theses including Ph.D. dissertations, Master's theses or Bachelor theses follow the basic format outlined below.

Doctoral dissertation
L. Zhao, Modeling, Estimation and Approximation in Structured Models, Doctoral dissertation, University of Louisiana, 2017.

News paper articles

Unlike scholarly journals, news papers do not usually have a volume and issue number. Instead, the full date and page number is required for a correct reference.

New York Times article
B. Hubbard, H. Saad, Evacuation of Aleppo Is Underway, Solidifying Assad’s Control, New York Times. (2016) A8.

In-text citations

References should be cited in the text by sequential numbers in square brackets:

This sentence cites one reference [1].
This sentence cites two references [1,2].
This sentence cites four references [1–4].

About the journal

Full journal titlePetroleum
ISSN (print)2405-6561

Other styles