User talk:80.42.218.42

November 2009
Welcome to Wikipedia. The recent edit you made to the page Extraction of petroleum has been reverted, as it appears to be unconstructive. Use the sandbox for testing; if you believe the edit was constructive, please ensure that you provide an informative edit summary. You may also wish to read the introduction to editing. Thank you. Alansohn (talk) 14:37, 2 November 2009 (UTC)

Please refrain from making unconstructive edits to Wikipedia, as you did with this edit to the page Extraction of petroleum. Such edits constitute vandalism and are reverted. Please do not continue to make unconstructive edits to pages; use the sandbox for testing. Thank you. Alansohn (talk) 14:45, 2 November 2009 (UTC)