Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000046765-21-000011-index-headers.html | 2021-03-03 16:49:37 | |
| 0000046765-21-000011-index.html | 2021-03-03 16:49:37 | |
| 0000046765-21-000011.txt | 2021-03-03 16:49:37 | |
 0000046765-21-000011-xbrl.zip | 11210 | 2021-03-03 16:49:37 |
| FilingSummary.xml | 1672 | 2021-03-03 16:49:37 |
| Financial_Report.xlsx | 5460 | 2021-03-03 16:49:37 |
| hp-20210303.htm | 29106 | 2021-03-03 16:49:37 |
| hp-20210303.xsd | 2417 | 2021-03-03 16:49:37 |
| hp-20210303_cal.xml | 714 | 2021-03-03 16:49:37 |
| hp-20210303_def.xml | 1651 | 2021-03-03 16:49:37 |
| hp-20210303_htm.xml | 10533 | 2021-03-03 16:49:37 |
| hp-20210303_lab.xml | 24275 | 2021-03-03 16:49:37 |
| hp-20210303_pre.xml | 12650 | 2021-03-03 16:49:37 |
| MetaLinks.json | 17265 | 2021-03-03 16:49:37 |
| R1.htm | 38611 | 2021-03-03 16:49:37 |
| report.css | 2767 | 2021-03-03 16:49:37 |
| Show.js | 1085 | 2021-03-03 16:49:37 |