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| 0000788965-16-000037-index.html | 2016-03-31 19:24:56 | |
| 0000788965-16-000037.txt | 2016-03-31 19:24:56 | |
| hnrg-20160331x8k.htm | 26668 | 2016-03-31 19:24:56 |
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| hnrg-20160331xex99.htm | 39678 | 2016-03-31 19:24:56 |