4/27 BP First quarter 2010 results http://www.bp.com/extendedgenericarticle.do?categoryId=2012968&contentId=7061409 *
4/28 Shell First quarter 2010 results and interim dividend announcement http://www.shell.com/home/content/media/news_and_library/press_releases/2010/q1_2010_results_newsitem_28042010.html *
4/29 ExxonMobil Exxon Mobil Corporation Announces Estimated First Quarter http://www.businesswire.com/portal/site/exxonmobil/index.jsp?ndmViewId=news_view&ndmConfigId=1001106&newsId=20100429005996&newsLang=en *
4/29 Shell Shell floating LNG technology chosen by joint venture for Greater Sunrise project http://www.shell.com/home/content/media/news_and_library/press_releases/2010/flng_technology_greater_sunrise_29042010.html
4/30 石油資源開発 カナダ・アルバータ州Hangingstone 鉱区オイルサンド拡張開発事業の開発許可申請の提出について http://www.japex.co.jp/pdf/2010/20100430_JAPEXJACOS_HE_j.pdf
4/30 BP BP Onshore Preparations for Gulf Coast Oil Spill http://www.bp.com/genericarticle.do?categoryId=2012968&contentId=7061712