Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000010254-22-000088-index-headers.html | 2022-04-18 16:06:35 | |
| 0000010254-22-000088-index.html | 2022-04-18 16:06:35 | |
| 0000010254-22-000088.txt | 2022-04-18 16:06:35 | |
 0000010254-22-000088-xbrl.zip | 187554 | 2022-04-18 16:06:35 |
| este-20220413.htm | 79668 | 2022-04-18 16:06:35 |
| este-20220413.xsd | 1926 | 2022-04-18 16:06:35 |
 este-20220413_g1.jpg | 18614 | 2022-04-18 16:06:35 |
| este-20220413_htm.xml | 11771 | 2022-04-18 16:06:35 |
| este-20220413_lab.xml | 26155 | 2022-04-18 16:06:35 |
| este-20220413_pre.xml | 13597 | 2022-04-18 16:06:35 |
| ex102-bighornregistrationr.htm | 204070 | 2022-04-18 16:06:35 |
| ex103-piperra.htm | 217529 | 2022-04-18 16:06:35 |
| ex104-bighornlockxupagreem.htm | 28351 | 2022-04-18 16:06:35 |
| ex105-votingagreement.htm | 146456 | 2022-04-18 16:06:35 |
| ex106-eehsecondarllcagreem.htm | 518437 | 2022-04-18 16:06:35 |
| ex14-codeofbusinessconduct.htm | 32975 | 2022-04-18 16:06:35 |
| ex31-certificateofdesignat.htm | 81316 | 2022-04-18 16:06:35 |
| ex991-bighornandhyclosing.htm | 20677 | 2022-04-18 16:06:35 |
| FilingSummary.xml | 2038 | 2022-04-18 16:06:35 |
| Financial_Report.xlsx | 5722 | 2022-04-18 16:06:35 |
 imagea.jpg | 15927 | 2022-04-18 16:06:35 |
 image_0.jpg | 446912 | 2022-04-18 16:06:35 |
 image_01.jpg | 212 | 2022-04-18 16:06:35 |
| MetaLinks.json | 17786 | 2022-04-18 16:06:35 |
| R1.htm | 41814 | 2022-04-18 16:06:35 |
| report.css | 2767 | 2022-04-18 16:06:35 |
| Show.js | 1085 | 2022-04-18 16:06:35 |