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Helmerich & Payne (HP)
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Annual Reports
10-K (Nov 21, 2012)
10-K (Nov 23, 2011)
10-K (Nov 24, 2010)
10-K (Nov 25, 2009)
10-K (Nov 26, 2008)
10-K (Nov 28, 2007)
10-K (Dec 13, 2006)
10-K (Jul 28, 2006)
10-K (Dec 13, 2005)
10-K (Mar 16, 2005)
10-K (Feb 11, 2005)
10-K (Dec 13, 2004)
10-K (Dec 23, 2003)
10-K (Dec 23, 2002)
10-K (Aug 16, 2002)
10-K (Jan 8, 2002)
10-K (Dec 27, 2001)
10-K (Dec 28, 1999)
10-K (Dec 28, 1998)
10-K (Dec 23, 1997)
10-K (Dec 27, 1996)
10-K (Dec 22, 1995)
Quarterly Reports
10-Q (May 3, 2013)
10-Q (Feb 7, 2013)
10-Q (Aug 3, 2012)
10-Q (May 4, 2012)
10-Q (Feb 7, 2012)
10-Q (Aug 8, 2011)
10-Q (May 6, 2011)
10-Q (Feb 7, 2011)
10-Q (Aug 5, 2010)
10-Q (May 5, 2010)
10-Q (Feb 3, 2010)
10-Q (Aug 5, 2009)
10-Q (May 5, 2009)
10-Q (Feb 3, 2009)
10-Q (Aug 5, 2008)
10-Q (May 6, 2008)
10-Q (Feb 6, 2008)
10-Q (Aug 7, 2007)
10-Q (May 8, 2007)
10-Q (Feb 7, 2007)
10-Q (Aug 4, 2006)
10-Q (Jul 28, 2006)
10-Q (May 5, 2006)
10-Q (Feb 7, 2006)
10-Q (Aug 5, 2005)
10-Q (May 6, 2005)
10-Q (Feb 8, 2005)
10-Q (Aug 13, 2004)
10-Q (May 13, 2004)
10-Q (Feb 13, 2004)
10-Q (Aug 14, 2003)
10-Q (May 14, 2003)
10-Q (Feb 14, 2003)
10-Q (Aug 14, 2002)
10-Q (May 15, 2002)
10-Q (Feb 14, 2002)
10-Q (Aug 13, 2001)
10-Q (May 11, 2001)
10-Q (Feb 13, 2001)
10-Q (Dec 19, 2000)
10-Q (Aug 8, 2000)
10-Q (May 15, 2000)
10-Q (Feb 14, 2000)
10-Q (Aug 13, 1999)
10-Q (May 14, 1999)
10-Q (Feb 16, 1999)
10-Q (Aug 14, 1998)
10-Q (May 14, 1998)
10-Q (Feb 13, 1998)
10-Q (Aug 13, 1997)
10-Q (May 13, 1997)
10-Q (Feb 14, 1997)
10-Q (Aug 14, 1996)
10-Q (May 8, 1996)
10-Q (Feb 13, 1996)
10-Q (Aug 14, 1995)
10-Q (May 15, 1995)
10-Q (Feb 24, 1995)
10-Q (Feb 14, 1995)
10-Q (Aug 12, 1994)
10-Q (May 13, 1994)
10-Q (Feb 14, 1994)
8-K
8-K (Jun 17, 2013)
8-K (Jun 13, 2013)
8-K (Jun 5, 2013)
8-K (May 28, 2013)
8-K (May 23, 2013)
8-K (Apr 26, 2013)
8-K (Apr 25, 2013)
8-K (Mar 18, 2013)
8-K (Mar 7, 2013)
8-K (Mar 6, 2013)
8-K (Feb 28, 2013)
8-K (Feb 5, 2013)
8-K (Jan 31, 2013)
8-K (Jan 8, 2013)
8-K (Dec 5, 2012)
8-K (Dec 4, 2012)
8-K (Nov 15, 2012)
8-K (Oct 1, 2012)
8-K (Sep 11, 2012)
8-K (Sep 6, 2012)
8-K (Sep 5, 2012)
8-K (Jul 27, 2012)
8-K (Jun 25, 2012)
8-K (Jun 7, 2012)
8-K (Jun 6, 2012)
8-K (May 31, 2012)
8-K (May 21, 2012)
8-K (May 18, 2012)
8-K (May 7, 2012)
8-K (Apr 26, 2012)
8-K (Mar 23, 2012)
8-K (Mar 14, 2012)
8-K (Mar 9, 2012)
8-K (Mar 8, 2012)
8-K (Mar 7, 2012)
8-K (Feb 29, 2012)
8-K (Feb 7, 2012)
8-K (Jan 31, 2012)
8-K (Jan 11, 2012)
8-K (Jan 9, 2012)
8-K (Dec 14, 2011)
8-K (Dec 7, 2011)
8-K (Dec 6, 2011)
8-K (Nov 29, 2011)
8-K (Nov 17, 2011)
8-K (Oct 3, 2011)
8-K (Sep 26, 2011)
8-K (Sep 7, 2011)
8-K (Jul 29, 2011)
8-K (Jul 5, 2011)
8-K (May 24, 2011)
8-K (Apr 28, 2011)
8-K (Mar 28, 2011)
8-K (Mar 2, 2011)
8-K (Feb 7, 2011)
8-K (Jan 27, 2011)
8-K (Jan 11, 2011)
8-K (Dec 7, 2010)
8-K (Nov 18, 2010)
8-K (Oct 12, 2010)
8-K (Sep 15, 2010)
8-K (Jul 29, 2010)
8-K (Jul 6, 2010)
8-K (Jul 1, 2010)
8-K (Jun 24, 2010)
8-K (Jun 23, 2010)
8-K (Jun 7, 2010)
8-K (May 24, 2010)
8-K (Apr 30, 2010)
8-K (Apr 29, 2010)
8-K (Mar 22, 2010)
8-K (Mar 4, 2010)
8-K (Feb 1, 2010)
8-K (Jan 28, 2010)
8-K (Jan 12, 2010)
8-K (Dec 8, 2009)
8-K (Dec 7, 2009)
8-K (Dec 2, 2009)
8-K (Nov 19, 2009)
8-K (Sep 9, 2009)
8-K (Jul 30, 2009)
8-K (Jul 21, 2009)
8-K (Jun 17, 2009)
8-K (Apr 30, 2009)
8-K (Mar 27, 2009)
8-K (Mar 23, 2009)
8-K (Feb 27, 2009)
8-K (Feb 5, 2009)
8-K (Jan 29, 2009)
8-K (Jan 22, 2009)
8-K (Jan 14, 2009)
8-K (Jan 12, 2009)
8-K (Dec 5, 2008)
8-K (Dec 3, 2008)
8-K (Nov 28, 2008)
8-K (Nov 20, 2008)
8-K (Nov 13, 2008)
8-K (Oct 1, 2008)
8-K (Sep 17, 2008)
8-K (Sep 2, 2008)
8-K (Jul 31, 2008)
8-K (Jun 5, 2008)
8-K (May 29, 2008)
8-K (May 1, 2008)
8-K (Apr 7, 2008)
8-K (Mar 6, 2008)
8-K (Jan 31, 2008)
8-K (Dec 18, 2007)
8-K (Dec 6, 2007)
8-K (Nov 15, 2007)
8-K (Oct 24, 2007)
8-K (Sep 10, 2007)
8-K (Aug 1, 2007)
8-K (Jul 18, 2007)
8-K (May 2, 2007)
8-K (Apr 2, 2007)
8-K (Mar 8, 2007)
8-K (Feb 1, 2007)
8-K (Dec 20, 2006)
8-K (Dec 8, 2006)
8-K (Dec 7, 2006)
8-K (Nov 16, 2006)
8-K (Sep 13, 2006)
8-K (Aug 31, 2006)
8-K (Jul 27, 2006)
8-K (Jul 11, 2006)
8-K (Jul 7, 2006)
8-K (Jun 23, 2006)
8-K (Apr 27, 2006)
8-K (Mar 13, 2006)
8-K (Mar 2, 2006)
8-K (Feb 21, 2006)
8-K (Jan 26, 2006)
8-K (Jan 25, 2006)
8-K (Jan 9, 2006)
8-K (Dec 12, 2005)
8-K (Dec 9, 2005)
8-K (Dec 8, 2005)
8-K (Nov 16, 2005)
8-K (Oct 28, 2005)
8-K (Oct 19, 2005)
8-K (Sep 27, 2005)
8-K (Sep 8, 2005)
8-K (Sep 1, 2005)
8-K (Aug 25, 2005)
8-K (Aug 9, 2005)
8-K (Jul 27, 2005)
8-K (Jul 22, 2005)
8-K (Jul 13, 2005)
8-K (Jun 30, 2005)
8-K (May 11, 2005)
8-K (Apr 27, 2005)
8-K (Apr 5, 2005)
8-K (Mar 23, 2005)
8-K (Feb 16, 2005)
8-K (Feb 3, 2005)
8-K (Jan 26, 2005)
8-K (Dec 15, 2004)
8-K (Dec 6, 2004)
8-K (Dec 3, 2004)
8-K (Nov 24, 2004)
8-K (Nov 10, 2004)
8-K (Oct 19, 2004)
8-K (Oct 14, 2004)
8-K (Sep 2, 2004)
8-K (Jul 22, 2004)
8-K (Apr 22, 2004)
8-K (Jan 22, 2004)
8-K (Nov 19, 2003)
8-K (Nov 12, 2003)
8-K (Jul 24, 2003)
8-K (Jul 15, 2003)
8-K (Jun 10, 2003)
8-K (Apr 29, 2003)
8-K (Apr 24, 2003)
8-K (Mar 5, 2003)
8-K (Feb 13, 2003)
8-K (Jan 22, 2003)
8-K (Dec 6, 2002)
8-K (Nov 14, 2002)
8-K (Oct 16, 2002)
8-K (Oct 15, 2002)
8-K (Sep 30, 2002)
8-K (Sep 20, 2002)
8-K (Sep 5, 2002)
8-K (Aug 16, 2002)
8-K (Jul 24, 2002)
8-K (Apr 24, 2002)
8-K (Feb 25, 2002)
8-K (Jan 23, 2002)
8-K (Nov 13, 2001)
8-K (Jun 13, 2001)
8-K (Mar 16, 2001)
8-K (Jan 18, 2001)
8-K (Feb 16, 1999)
8-K (Jan 8, 1998)
8-K (Dec 5, 1997)
8-K (Mar 27, 1997)
8-K (Sep 12, 1996)
8-K (Jan 18, 1996)
8-K (Jul 11, 1994)
8-K (Apr 7, 1994)
8-K (Jan 28, 1994)
Other
SC 13D (Jun 13, 2013)
Form 4 (Jun 7, 2013)
Form 4 (Jun 3, 2013)
SC 13D (May 28, 2013)
Form 4 (May 17, 2013)
Form 4 (Mar 28, 2013)
Form 4 (Mar 22, 2013)
Form 4 (Mar 19, 2013)
Form 4 (Mar 7, 2013)
Form 4 (Mar 4, 2013)
SC 13G (Feb 11, 2013)
SC 13G (Feb 8, 2013)
SC 13G (Feb 7, 2013)
Form 4 (Jan 22, 2013)
Form 4 (Jan 18, 2013)
Form 4 (Jan 16, 2013)
Form 4 (Dec 21, 2012)
Form 4 (Dec 20, 2012)
Form 4 (Dec 19, 2012)
Form 4 (Dec 18, 2012)
Form 4 (Dec 14, 2012)
Form 4 (Dec 7, 2012)
Form 4 (Dec 6, 2012)
Form 4 (Dec 5, 2012)
Form 4 (Dec 4, 2012)
Form 4 (Nov 30, 2012)
Form 4 (Sep 6, 2012)
Form 4 (Sep 4, 2012)
Form 4 (Jun 7, 2012)
Form 3 (Jun 6, 2012)
Form 4 (Jun 4, 2012)
Form 4 (May 7, 2012)
Form 4 (May 3, 2012)
Form 3 (Mar 13, 2012)
Form 4 (Mar 8, 2012)
Form 4 (Mar 2, 2012)
SC 13G (Feb 8, 2012)
SC 13G (Jan 31, 2012)
DEF 14A (Jan 27, 2012)
PRER14A (Jan 25, 2012)
PRE 14A (Jan 5, 2012)
Form 4 (Dec 29, 2011)
Form 4 (Dec 21, 2011)
Form 4 (Dec 20, 2011)
Form 4 (Dec 13, 2011)
Form 4 (Dec 12, 2011)
Form 4 (Dec 9, 2011)
Form 4 (Dec 8, 2011)
Form 4 (Dec 7, 2011)
Form 4 (Dec 5, 2011)
Form 4 (Dec 2, 2011)
Form 4 (Nov 29, 2011)
Form 4 (Nov 23, 2011)
Form 5 (Oct 18, 2011)
S-8 (Sep 19, 2011)
Form 4 (Sep 8, 2011)
Form 4 (Sep 6, 2011)
Form 4 (Jun 16, 2011)
Form 4 (Jun 14, 2011)
Form 4 (Jun 9, 2011)
Form 4 (Jun 2, 2011)
Form 4 (Mar 23, 2011)
Form 4 (Mar 4, 2011)
Form 4 (Mar 3, 2011)
Form 4 (Mar 1, 2011)
Form 4 (Feb 23, 2011)
SC 13G (Feb 10, 2011)
SC 13G (Feb 8, 2011)
SC 13G (Feb 4, 2011)
Form 4 (Jan 31, 2011)
DEF 14A (Jan 26, 2011)
Form 4 (Jan 21, 2011)
Form 4 (Dec 30, 2010)
Form 4 (Dec 22, 2010)
Form 4 (Dec 21, 2010)
Form 4 (Dec 17, 2010)
Form 4 (Dec 9, 2010)
Form 4 (Dec 8, 2010)
Form 4 (Dec 2, 2010)
SC 13G (Nov 10, 2010)
Form 4 (Oct 15, 2010)
Form 4 (Oct 13, 2010)
Form 4 (Oct 8, 2010)
Form 4 (Sep 16, 2010)
Form 4 (Sep 14, 2010)
Form 4 (Sep 3, 2010)
SC 13G (Jul 8, 2010)
Form 3 (Jul 1, 2010)
Form 4 (Jun 23, 2010)
Form 4 (Jun 3, 2010)
Form 4 (Jun 2, 2010)
Form 3 (May 5, 2010)
Form 4 (Mar 4, 2010)
Form 4 (Mar 2, 2010)
SC 13G (Feb 16, 2010)
SC 13G (Feb 2, 2010)
SC 13G (Jan 29, 2010)
DEF 14A (Jan 26, 2010)
Form 4 (Jan 5, 2010)
Form 4 (Dec 30, 2009)
Form 4 (Dec 17, 2009)
Form 4 (Dec 16, 2009)
Form 4 (Dec 14, 2009)
Form 4 (Dec 9, 2009)
Form 4 (Dec 7, 2009)
Form 4 (Dec 4, 2009)
Form 4 (Dec 3, 2009)
Form 4 (Dec 2, 2009)
Form 4 (Oct 30, 2009)
Form 4 (Oct 20, 2009)
Form 4 (Oct 15, 2009)
Form 4 (Oct 13, 2009)
Form 4 (Sep 10, 2009)
Form 4 (Sep 9, 2009)
Form 4 (Sep 3, 2009)
Form 4 (Sep 2, 2009)
Form 4 (Aug 5, 2009)
Form 4 (Jul 21, 2009)
Form 4 (Jun 17, 2009)
SC 13G (Jun 10, 2009)
Form 4 (Jun 4, 2009)
Form 4 (Jun 2, 2009)
Form 4 (May 15, 2009)
Form 4 (May 14, 2009)
Form 4 (May 7, 2009)
Form 4 (May 5, 2009)
UPLOAD (Apr 22, 2009)
Form 4 (Mar 30, 2009)
Form 4 (Mar 20, 2009)
CORRESP (Mar 18, 2009)
UPLOAD (Mar 11, 2009)
Form 4 (Mar 5, 2009)
Form 4 (Mar 3, 2009)
CORRESP (Mar 2, 2009)
SC 13G (Feb 10, 2009)
CORRESP (Feb 9, 2009)
Form 4 (Feb 6, 2009)
UPLOAD (Feb 2, 2009)
Form 4 (Jan 30, 2009)
Form 4 (Jan 27, 2009)
DEF 14A (Jan 26, 2009)
Form 4 (Jan 23, 2009)
SC 13G (Jan 9, 2009)
Form 4 (Dec 11, 2008)
Form 4 (Dec 4, 2008)
Form 4 (Dec 3, 2008)
Form 4 (Dec 2, 2008)
Form 4 (Oct 9, 2008)
Form 4 (Sep 4, 2008)
Form 4 (Sep 3, 2008)
Form 4 (Jul 1, 2008)
Form 4 (Jun 26, 2008)
Form 4 (Jun 23, 2008)
Form 4 (Jun 17, 2008)
Form 4 (Jun 16, 2008)
Form 3 (Jun 10, 2008)
Form 4 (Jun 6, 2008)
Form 4 (Jun 4, 2008)
Form 4 (Jun 3, 2008)
Form 4 (Mar 6, 2008)
SC 13G (Feb 27, 2008)
Form 4 (Feb 15, 2008)
SC 13G (Feb 14, 2008)
SC 13G (Feb 12, 2008)
Form 4 (Feb 5, 2008)
Form 4 (Feb 4, 2008)
SC 13G (Jan 30, 2008)
DEF 14A (Jan 25, 2008)
Form 4 (Dec 6, 2007)
Form 4 (Dec 5, 2007)
Form 4 (Dec 4, 2007)
Form 4 (Nov 30, 2007)
Form 4 (Nov 21, 2007)
Form 4 (Oct 11, 2007)
Form 4 (Sep 6, 2007)
Form 4 (Sep 5, 2007)
Form 4 (Jun 25, 2007)
Form 4 (Jun 7, 2007)
Form 4 (Jun 4, 2007)
Form 4 (May 10, 2007)
UPLOAD (Apr 23, 2007)
Form 4 (Mar 26, 2007)
Form 4 (Mar 23, 2007)
CORRESP (Mar 22, 2007)
Form 4 (Mar 19, 2007)
Form 4 (Mar 8, 2007)
UPLOAD (Mar 7, 2007)
Form 4 (Mar 2, 2007)
SC 13G (Feb 14, 2007)
Form 4 (Feb 13, 2007)
Form 4 (Feb 9, 2007)
Form 4 (Feb 8, 2007)
Form 4 (Feb 6, 2007)
Form 4 (Feb 5, 2007)
DEF 14A (Jan 26, 2007)
Form 4 (Jan 19, 2007)
Form 4 (Jan 3, 2007)
Form 4 (Dec 19, 2006)
Form 4 (Dec 7, 2006)
Form 4 (Dec 6, 2006)
Form 4 (Dec 4, 2006)
Form 4 (Nov 30, 2006)
Form 4 (Nov 28, 2006)
Form 4 (Nov 21, 2006)
Form 4 (Nov 20, 2006)
Form 4 (Sep 18, 2006)
Form 4 (Sep 15, 2006)
Form 4 (Sep 8, 2006)
S-8 (Sep 6, 2006)
Form 4 (Sep 5, 2006)
UPLOAD (Jul 25, 2006)
CORRESP (Jul 20, 2006)
UPLOAD (Jul 17, 2006)
CORRESP (Jun 14, 2006)
Form 4 (Jun 9, 2006)
Form 4 (Jun 2, 2006)
Form 4 (May 17, 2006)
Form 4 (May 16, 2006)
DEF 14A (May 15, 2006)
Form 4 (May 11, 2006)
Form 4 (May 10, 2006)
CORRESP (May 8, 2006)
UPLOAD (Apr 28, 2006)
PRE 14A (Apr 24, 2006)
Form 3 (Apr 17, 2006)
UPLOAD (Apr 4, 2006)
Form 3 (Mar 8, 2006)
Form 3 (Mar 7, 2006)
Form 4 (Mar 2, 2006)
SC 13G (Feb 14, 2006)
SC 13G (Feb 10, 2006)
Form 4 (Feb 8, 2006)
Form 4 (Feb 7, 2006)
Form 4 (Feb 6, 2006)
Form 4 (Feb 3, 2006)
SC 13G (Feb 2, 2006)
SC 13G (Feb 1, 2006)
Form 4 (Jan 31, 2006)
Form 4 (Jan 30, 2006)
DEF 14A (Jan 26, 2006)
Form 4 (Jan 4, 2006)
Form 4 (Jan 3, 2006)
Form 4 (Dec 27, 2005)
Form 4 (Dec 22, 2005)
Form 4 (Dec 16, 2005)
Form 4 (Dec 14, 2005)
8-A12B (Dec 12, 2005)
Form 4 (Dec 7, 2005)
Form 4 (Dec 6, 2005)
Form 4 (Dec 2, 2005)
Form 4 (Nov 15, 2005)
Form 4 (Oct 6, 2005)
Form 4 (Sep 22, 2005)
Form 4 (Sep 20, 2005)
Form 4 (Sep 19, 2005)
Form 4 (Sep 9, 2005)
Form 4 (Sep 2, 2005)
Form 4 (Aug 29, 2005)
Form 4 (Aug 24, 2005)
Form 4 (Aug 22, 2005)
Form 4 (Aug 12, 2005)
Form 4 (Aug 4, 2005)
Form 4 (Aug 3, 2005)
Form 4 (Aug 2, 2005)
Form 4 (Aug 1, 2005)
Form 4 (Jun 24, 2005)
Form 4 (Jun 23, 2005)
Form 4 (Jun 16, 2005)
Form 4 (Jun 3, 2005)
Form 4 (May 27, 2005)
Form 4 (May 10, 2005)
Form 4 (May 9, 2005)
Form 4 (May 6, 2005)
Form 4 (May 4, 2005)
Form 4 (Apr 20, 2005)
Form 4 (Mar 3, 2005)
Form 4 (Feb 16, 2005)
Form 4 (Feb 15, 2005)
Form 4 (Feb 14, 2005)
Form 4 (Feb 4, 2005)
Form 4 (Feb 3, 2005)
Form 4 (Feb 2, 2005)
Form 4 (Feb 1, 2005)
Form 4 (Jan 31, 2005)
DEF 14A (Jan 26, 2005)
SC 13G (Jan 21, 2005)
ARS (Jan 18, 2005)
Form 4 (Jan 3, 2005)
Form 4 (Dec 16, 2004)
Form 4 (Dec 15, 2004)
Form 4 (Dec 9, 2004)
Form 4 (Dec 3, 2004)
Form 4 (Dec 2, 2004)
Form 4 (Dec 1, 2004)
Form 4 (Nov 29, 2004)
Form 4 (Nov 24, 2004)
Form 4 (Nov 23, 2004)
Form 4 (Nov 16, 2004)
SC 13D (Oct 19, 2004)
SC 13G (Sep 10, 2004)
Form 4 (Sep 7, 2004)
Form 4 (Sep 3, 2004)
SC 13D (Jul 21, 2004)
Form 4 (Jun 23, 2004)
Form 4 (Jun 2, 2004)
Form 4 (May 14, 2004)
Form 4 (May 5, 2004)
Form 4 (May 4, 2004)
Form 4 (Apr 28, 2004)
Form 4 (Mar 22, 2004)
Form 4 (Mar 15, 2004)
Form 4 (Mar 12, 2004)
Form 4 (Mar 3, 2004)
Form 4 (Feb 27, 2004)
Form 4 (Feb 26, 2004)
Form 4 (Feb 25, 2004)
Form 4 (Feb 24, 2004)
Form 4 (Feb 19, 2004)
SC 13G (Feb 17, 2004)
SC 13G (Feb 3, 2004)
DEF 14A (Jan 26, 2004)
Form 4 (Jan 5, 2004)
Form 4 (Dec 18, 2003)
Form 4 (Dec 17, 2003)
Form 4 (Dec 15, 2003)
Form 4 (Dec 11, 2003)
Form 4 (Dec 8, 2003)
Form 4 (Dec 5, 2003)
Form 4 (Dec 4, 2003)
Form 4 (Nov 17, 2003)
Form 4 (Sep 29, 2003)
SC 13G (Sep 10, 2003)
Form 4 (Aug 11, 2003)
Form 4 (Jul 18, 2003)
Form 4 (Jun 13, 2003)
SC 13G (Feb 12, 2003)
SC 13G (Feb 10, 2003)
DEF 14A (Jan 24, 2003)
425 (Sep 5, 2002)
425 (Aug 6, 2002)
425 (Jul 24, 2002)
425 (May 21, 2002)
425 (Apr 24, 2002)
425 (Apr 9, 2002)
425 (Feb 26, 2002)
425 (Feb 25, 2002)
SC 13G (Feb 12, 2002)
SC 13G (Feb 7, 2002)
SE (Jan 28, 2002)
DEF 14A (Jan 25, 2002)
SC 13G (Nov 9, 2001)
S-8 (Jun 15, 2001)
SC 13G (Feb 14, 2001)
SC 13G (Feb 13, 2001)
SC 13G (Feb 9, 2001)
DEF 14A (Jan 26, 2001)
10-K405 (Dec 28, 2000)
SC 13G (Feb 11, 2000)
SC 13G (Feb 3, 2000)
DEF 14A (Jan 27, 2000)
SC 13G (Feb 11, 1999)
SC 13G (Feb 4, 1999)
DEF 14A (Jan 27, 1999)
SC 13G (Feb 11, 1998)
DEF 14A (Jan 27, 1998)
SC 13G (Sep 4, 1997)
S-8 (Mar 31, 1997)
SC 13G (Feb 12, 1997)
SC 13G (Feb 11, 1997)
DEF 14A (Jan 27, 1997)
SC 13G (Nov 12, 1996)
SC 13G (Feb 13, 1996)
SC 13G (Feb 12, 1996)
DEF 14A (Jan 26, 1996)
8-A12B (Jan 18, 1996)
SC 13G (Feb 8, 1995)
DEF 14A (Jan 26, 1995)
S-8 (Aug 26, 1994)
SC 13G (Feb 14, 1994)
SC 13G (Feb 10, 1994)
SC 13G (Feb 9, 1994)
DEF 14A (Jan 26, 1994)
()
Quarterly (Dec 31, 1969)
Helmerich & Payne 8-K 2009
Documents found in this filing:
8-K
Ex-99.1
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