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 Subject: Crude oil refining Category: Miscellaneous Asked by: corkypq-ga List Price: \$3.00 Posted: 22 Apr 2003 04:12 PDT Expires: 22 May 2003 04:12 PDT Question ID: 193727
 `On average, what percentage of gasoline can be refined from a barrel of crude oil?`
 Subject: Re: Crude oil refining Answered By: feilong-ga on 22 Apr 2003 05:40 PDT Rated:
 ```Hi Corkypq, According to Platts.com, a Barrel is a volumetric unit of measurement for crude oil and petroleum products. Based on the two references below, there are 42 U.S. gallons in a barrel of oil: Platts Global Energy Glossary -- Barrel http://www.platts.com/features/gasoline/glossary.shtml California Energy Commission Update: Gasoline Supplies and Prices in California http://www.energy.ca.gov/releases/2000_releases/2000-07-12_gasoline_report.html Based on "Life Barrel of Oil: Facts About Oil", published by the American Petroleum Institute, there are 19.4 gallons per Barrel of crude oil: View in HTML http://216.239.33.100/search?q=cache:LcSJF01XCBQC:www.classroom-energy.org/teachers/oilfacts.pdf+average+gasoline+%22barrel+of+oil%22&hl=en&ie=UTF-8 View in PDF (You can download the file by right-clicking on the link and choosing "Save Target As...") http://www.classroom-energy.org/teachers/oilfacts.pdf Based on the references above: 19.4 ÷ 42 x 100 = 46.2 (46.1904761904761904761904761904762) 46.2 percent of a barrel of oil can be made into gasoline. However, some sources say that a barrel yields 19.5 - 20 gallons of gasoline. An example: U.S. Geological Survey Zeolites, by Robert L. Virta (20 gallons of gasoline per barrel) View in HTML http://216.239.33.100/search?q=cache:8s717Lq2JBcC:minerals.usgs.gov/minerals/pubs/commodity/zeolites/zeomyb01.pdf+%22gallons+of+gasoline+per+barrel%22&hl=en&ie=UTF-8 View in PDF http://minerals.usgs.gov/minerals/pubs/commodity/zeolites/zeomyb01.pdf Hence, given these info: 19.4 + 19.5 + 20 = 58.9 58.9 ÷ 3 = 19.6 gallons of gasoline per barrel (average) 19.63 ÷ 42 x 100 = 46.7 (46.7380952380952380952380952380952) 46.7 percent of a barrel of oil can be made into gasoline (average) In case you want to know more, you can search through the results of the last links below. Search strategy: "gallons in a barrel" ://www.google.com/search?num=100&hl=en&lr=&ie=ISO-8859-1&newwindow=1&safe=off&q=%22gallons+in+a+barrel%22 "gallons of gasoline per barrel" ://www.google.com/search?num=100&hl=en&lr=&ie=ISO-8859-1&newwindow=1&safe=off&q=%22gallons+of+gasoline+per+barrel%22 average gasoline "barrel of oil" ://www.google.com/search?q=average+gasoline+%22barrel+of+oil%22&sa=Google+Search&cat=&hl=en I hope this helps you. Should you have any comments/questions, please feel free to post your clarification before rating this and I'll attend to you as soon as possible. Thanks for asking. Best regards, Feilong```
 corkypq-ga rated this answer: `very complete, just what I was looking for.`

 ```As an interesting related note, oil refining is one of the only processes where you end up with more than you started. Crude oil is processed into a variety of end products which have more mass than the oil they started out with.```
 `Thanks Corkypq. I really appreciate the high rating.`
 `Thanks Jonmm for adding additional info to my answer.`