SEC Filings SEC Filings SEC Filing Keyword Search Group 3,4,5Annual FilingsCurrent ReportsMergers & AcquisitionsOtherProxy FilingsQuarterly FilingsRegistration Statements Filing year - Any -20212020201920182017201620152014201320122011201020092008200720062005200420032002 Filing date Description Form View Mar 20, 2018 25-NSE 25-NSE 0000876661-18-000276.rtf 0000876661-18-000276.pdf Mar 19, 2018 8-K12B 8-K12B 0001193125-18-087967.rtf 0001193125-18-087967.xls 0001193125-18-087967.pdf Mar 22, 2010 A preliminary proxy statement providing notification matters to be brought to a vote PRE 14A 0001193125-10-063120.rtf 0001193125-10-063120.xls 0001193125-10-063120.pdf Mar 16, 2012 A preliminary proxy statement providing notification matters to be brought to a vote PRE 14A 0001193125-12-119775.rtf 0001193125-12-119775.xls 0001193125-12-119775.pdf Mar 24, 2017 A preliminary proxy statement providing notification matters to be brought to a vote PRE 14A 0001193125-17-095805.rtf 0001193125-17-095805.xls 0001193125-17-095805.pdf Mar 03, 2020 A preliminary proxy statement providing notification matters to be brought to a vote PRE 14A 0001725526-20-000034.rtf 0001725526-20-000034.xls 0001725526-20-000034.pdf Jul 10, 2007 A statement of beneficial ownership of common stock by certain persons SC 13G 0000038777-07-000432.rtf 0000038777-07-000432.xls 0000038777-07-000432.pdf Feb 01, 2008 A statement of beneficial ownership of common stock by certain persons SC 13G 0001104659-08-006589.rtf 0001104659-08-006589.xls 0001104659-08-006589.pdf Jan 29, 2010 A statement of beneficial ownership of common stock by certain persons SC 13G 0001086364-10-007066.rtf 0001086364-10-007066.pdf Feb 16, 2010 A statement of beneficial ownership of common stock by certain persons SC 13G 0000812295-10-000107.rtf 0000812295-10-000107.pdf Pagination Current page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 … Next page Next › Last page Last » Data provided by Kaleidoscope. Investors Overview News Stock Information SEC Filings Presentations Event Calendar Annual Reports Analyst Coverage Earnings Estimates Info Request IR Contact Shareholder Tools Print RSS Feeds E-mail Alerts Investor Relations Contact Larry Busnardo Vice President, Investor Relations (303) 312-8514lbusnardo@hpres.com
SEC Filings SEC Filing Keyword Search Group 3,4,5Annual FilingsCurrent ReportsMergers & AcquisitionsOtherProxy FilingsQuarterly FilingsRegistration Statements Filing year - Any -20212020201920182017201620152014201320122011201020092008200720062005200420032002 Filing date Description Form View Mar 20, 2018 25-NSE 25-NSE 0000876661-18-000276.rtf 0000876661-18-000276.pdf Mar 19, 2018 8-K12B 8-K12B 0001193125-18-087967.rtf 0001193125-18-087967.xls 0001193125-18-087967.pdf Mar 22, 2010 A preliminary proxy statement providing notification matters to be brought to a vote PRE 14A 0001193125-10-063120.rtf 0001193125-10-063120.xls 0001193125-10-063120.pdf Mar 16, 2012 A preliminary proxy statement providing notification matters to be brought to a vote PRE 14A 0001193125-12-119775.rtf 0001193125-12-119775.xls 0001193125-12-119775.pdf Mar 24, 2017 A preliminary proxy statement providing notification matters to be brought to a vote PRE 14A 0001193125-17-095805.rtf 0001193125-17-095805.xls 0001193125-17-095805.pdf Mar 03, 2020 A preliminary proxy statement providing notification matters to be brought to a vote PRE 14A 0001725526-20-000034.rtf 0001725526-20-000034.xls 0001725526-20-000034.pdf Jul 10, 2007 A statement of beneficial ownership of common stock by certain persons SC 13G 0000038777-07-000432.rtf 0000038777-07-000432.xls 0000038777-07-000432.pdf Feb 01, 2008 A statement of beneficial ownership of common stock by certain persons SC 13G 0001104659-08-006589.rtf 0001104659-08-006589.xls 0001104659-08-006589.pdf Jan 29, 2010 A statement of beneficial ownership of common stock by certain persons SC 13G 0001086364-10-007066.rtf 0001086364-10-007066.pdf Feb 16, 2010 A statement of beneficial ownership of common stock by certain persons SC 13G 0000812295-10-000107.rtf 0000812295-10-000107.pdf Pagination Current page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 … Next page Next › Last page Last » Data provided by Kaleidoscope.