crude oil: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Article revised and updated. | Jan 08, 2026 | ||
| Add new Web site: CORE - Environmental and Economic Impacts of Crude Oil and Natural Gas Production in Developing Countries (PDF). | Oct 10, 2025 | ||
| Media added. | May 27, 2020 | ||
| Added cross-references throughout. | May 27, 2020 | ||
| Add new Web site: Energy Kids - Oil. | Aug 03, 2016 | ||
| Add new Web site: British Broadcasting Corporation - Useful chemicals from crude oil. | Jul 06, 2012 | ||
| Media added. | Jun 28, 2012 | ||
| Article thoroughly revised. | Jun 28, 2012 | ||
| Added new Web site: University of Illinois at Chicago - Paraffin and Waxy Crude Oil. | Mar 06, 2008 | ||
| Article added to new online database. | Jul 20, 1998 |
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