Talk:List of largest oil and gas companies by revenue

Untitled
Schlumberger is not an oil and gas company. Removed from listing. TNK-BP has been purchased by Rosneft. — Preceding unsigned comment added by 71.65.210.113 (talk) 22:50, 10 March 2014 (UTC)

reference gives different numbers and companies for 2015
The reference has other numbers than in the article... absolutely no Saudi ARAMCO, it would be completely different, and it is the only source here...?! Kilon22 (talk) 19:45, 19 June 2017 (UTC)

Schlumberger
Schlumberger is not really an oil and gas company. It is an oil field services company - Siesmic, geophys, wirelines, LWD, MWD, mud logging, cementing etc. — Preceding unsigned comment added by 87.224.32.138 (talk) 09:56, 19 November 2018 (UTC)


 * Schlumberger comprises multiple firms in a hierarchically structured network. If we mean Schlumberger as parent company, it is clearly rooted in USA and not in France as the article assumes. Even though Schlumberger originated in France and has a very important subsidiary in France (which is notably dynamic both in terms of R&D and patenting activities), the Headquarters of the group are located in USA and it is not just a formal detail: the global strategy of Schulumberger is indeed decided in America 181.95.241.124 (talk) 04:33, 1 May 2022 (UTC)

BP
Not sure why BP is listed as British and American when its wikipedia page states its from the UK — Preceding unsigned comment added by 51.148.180.11 (talk) 11:40, 4 February 2021 (UTC)

Article update
This article has been comprehensively updated, and everything cited. What constitutes "largest" has been arbitrarily defined as "more than US$1 billion" in annual revenues. Companies close to the cutoff may slip off and on the list, so a few companies with revenues under US$1 billion are still listed.

Additionally, the Statista and Sovereign Wealth Fund lists sometimes failed to list large state-owned natonal oil companies. I used Wikipedia's list of the largest oil-producing nations in the world, researched their national oil companies, and added these where they met the cutoff. Revenue data for some could not be found, not even for a single year. In these cases, I left the state-owned enterprise off the list.

There may still be private or publicly-listed oil companies which may meet the cutoff, but I am not aware of them. Other contributors are encouraged to add them, with citations, where appropriate.

Exchange rates were calculated by using the same web site as consistently as possible. If there is any error/bias, the bias should all be in one direction (as statisticians say). I was unable to calculate exchange rates for companies which did not use a January 1-to-December 31 fiscal year. This could be done, but I lacked the time to do so. Instead, I calculated exchange rates based on the year in which the majority of the business's activity occurred. That is noted in the endnotes.

I tried to avoid using Statista, Forbes, The Wall Street Journal, Dun & Bradstreet, and other web sites for financial data. I discovered that revenue date varied, sometimes quite widely, from site to site. It appears that these web sites used different definitions for "revenue", or perhaps used preliminary data rather than audited revenue, or failed to use restated revenue (where firms restated). The use of self-reported data from corporate annual reports and audited financial statements was preferred, as this was a consistent source of revenue data and, additionally, often revealed when companies restated prior-year revenues. I could not avoid use of third-party report sites (like Statista) all the time. Hopefully, better sources will appear later. - Tim1965 (talk) 14:41, 21 May 2022 (UTC)

Hess Corporation
Hess Corporation seems to be missing. Here's Annual Report 2021 — Arsenicum-82 (talk) 12:34, 29 June 2022 (UTC)
 * I'll add it. - Tim1965 (talk) 17:26, 29 June 2022 (UTC)
 * Also there is APA Corporation. — Arsenicum-82 (talk) 01:09, 30 June 2022 (UTC)

Bangladesh reports
Auditor's reports for various Bangladesh corporations are difficult to find via Google. Wayback Machine seems not to have crawled the site of the Ministry of Finance very well. Linking to pages does not perform well, as sometimes the Ministry of Finance site reports a "page not found". State-owned enterprises (SOEs) post their auditor's reports here. By searching under the appropriate year, one can determine if an auditor's report for that year has been filed. - Tim1965 (talk) 18:22, 29 June 2022 (UTC)

United Energy Group
United Energy Group bears watching in the future. This Hong Kong-based company is very close to US$1 billion a year in revenue (the cut-off point chosen for inclusion in this list). I checked its annual reports from 2017 to 2021, and it has not yet crossed the margin. I expect it will. - Tim1965 (talk) 15:02, 9 September 2022 (UTC)

Enerplus
Enerplus also bears watching in the future. This Canadian company is very close to US$1 billion a year in revenue (the cut-off point chosen for inclusion in this list). I checked its annual reports from 2017 to 2021, and it has not yet crossed the margin. I expect it will. - Tim1965 (talk) 19:47, 15 September 2022 (UTC)

Removing Rompetrol
In 2007, KazMunayGas purchased a 75 percent majority ownership in Rompetrol. It acquired the remaining percentage in 2009. It is duplicative to include the revenues of Rompetrol, as those are already included in the consolidated financial revenues for KazMunayGas. Therefore, I removed Rompetrol. - Tim1965 (talk) 17:42, 27 February 2023 (UTC)

Sinopec's 2022 revenues
If I am reading this correctly, according to its annual report p.3, Sinopec had 2022 revenues of 3.318 billion yuan, not 3.218. That would convert to USD 493.4bn. Ejgertz (talk) 20:05, 1 March 2024 (UTC)