http://www.orlenunipetrol.cz/en/InvestorRelations/archive/RegulatoryAnnouncements/Pages/01-RA-SB.aspx
http://www.orlenunipetrol.cz/en/InvestorRelations/archive/RegulatoryAnnouncements/Pages/Resignation-of-Member-of-Supervisory-Board-of-UNIPETROL,.aspx
http://www.orlenunipetrol.cz/en/InvestorRelations/archive/RegulatoryAnnouncements/Pages/THE-CHANGE-IN-SHARE-OF-THE-VOTING-RIGHTS-OF-UNIPETROL,-A.S.-14-06-2006.aspx
http://www.orlenunipetrol.cz/en/InvestorRelations/archive/RegulatoryAnnouncements/Pages/Announcement-25-02-2009.aspx
http://www.orlenunipetrol.cz/en/InvestorRelations/archive/RegulatoryAnnouncements/Pages/4Q2016.aspx [View duplicates]
http://www.orlenunipetrol.cz/en/InvestorRelations/archive/RegulatoryAnnouncements/Pages/Half-year-Report-2018.aspx
http://www.orlenunipetrol.cz/en/InvestorRelations/archive/RegulatoryAnnouncements/Pages/Inside-information-19-04-2012.aspx [View duplicates]
http://www.orlenunipetrol.cz/en/InvestorRelations/archive/Presentations/Pages/2014.aspx
http://www.orlenunipetrol.cz/en/InvestorRelations/archive/Presentations/Pages/2016.aspx [View duplicates]
http://www.orlenunipetrol.cz/en/InvestorRelations/archive/RegulatoryAnnouncements/Pages/Resignation-of-Supervisory-Board-Members-from-their-Offices.aspx