$GPOR Market Cap:
Research Board Inbox Deep Research Not Interested Shortlisted

$GPOR SEC Filings

Filing Filed On
FINAL PROSPECTUS SUPPLEMENT 19 Dec 2016
424B5 15 Dec 2016
424B5 11 Mar 2016
PRELIMINARY PROSPECTUS SUPPLEMENT 09 Mar 2016
FINAL PROSPECTUS SUPPLEMENT 11 Jun 2015
PRELIMINARY PROSPECTUS SUPPLEMENT 09 Jun 2015
FINAL PROSPECTUS SUPPLEMENT 20 Apr 2015
FILED PURSUANT TO RULE 424(B)(5) 15 Apr 2015
424B5 08 Nov 2013
424B5 06 Nov 2013
424B5 12 Feb 2013
424B5 11 Feb 2013
424B5 20 Dec 2012
PRELIMINARY PROSPECTUS SUPPLEMENT 18 Dec 2012
FINAL PROSPECTUS SUPPLEMENT 30 Nov 2011
PROSPECTUS SUPPLEMENT 29 Nov 2011
FINAL PROSPECTUS SUPPLEMENT 12 Jul 2011
PRELIMINARY PROSPECTUS SUPPLEMENT 11 Jul 2011
424B5 28 Mar 2011
PROSPECTUS SUPPLEMENT 21 Mar 2011