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| 0000788965-18-000027-index.html | 2018-08-06 20:24:26 | |
| 0000788965-18-000027.txt | 2018-08-06 20:24:26 | |
| hnrg-20180806x8k.htm | 39396 | 2018-08-06 20:24:26 |
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| hnrg-20180806xex99_1.htm | 64900 | 2018-08-06 20:24:26 |
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