$PDCO SEC Filings

Filing Filed On
8-K/A 01 Sep 2015
FORM 8-K AMENDMENT 21 Feb 2013
FORM 8-K/A 29 Sep 2004
AMENDMENT NO. 1 TO FORM 8-K 24 Nov 2003
FORM 8-K/A AMENDMENT NO. 2 10 Feb 1997
FORM 8-K/A 13 Dec 1996