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| 0000101594-14-000007-index.html | 2014-03-11 20:57:45 | |
| 0000101594-14-000007.txt | 2014-03-11 20:57:45 | |
 0000101594-14-000007-xbrl.zip | 283327 | 2014-03-11 20:57:45 |
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| exhibit10_10b.htm | 96178 | 2014-03-11 20:57:45 |
| exhibit21_1.htm | 2129 | 2014-03-11 20:57:45 |
| exhibit23_0.htm | 9345 | 2014-03-11 20:57:45 |
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| exhibit23_1.htm | 9726 | 2014-03-11 20:57:45 |
| exhibit23_2.htm | 4980 | 2014-03-11 20:57:45 |
| exhibit23_3.htm | 3279 | 2014-03-11 20:57:45 |
| exhibit31_1.htm | 13362 | 2014-03-11 20:57:45 |
| exhibit31_2.htm | 13383 | 2014-03-11 20:57:45 |
| exhibit32_1.htm | 6177 | 2014-03-11 20:57:45 |
| exhibit32_2.htm | 6415 | 2014-03-11 20:57:45 |
| exhibit99_1.htm | 153525 | 2014-03-11 20:57:45 |
| FilingSummary.xml | 28320 | 2014-03-11 20:57:45 |
| Financial_Report.xls | 2664618 | 2014-03-11 20:57:45 |
| Financial_Report.xlsx | 257969 | 2014-03-11 20:57:45 |
| form10_k.htm | 3454351 | 2014-03-11 20:57:45 |
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 marketindex13.jpg | 50673 | 2014-03-11 20:57:45 |
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| report.css | 2740 | 2014-03-11 20:57:45 |
 ryderscott.jpg | 15205 | 2014-03-11 20:57:45 |
| Show.js | 1410 | 2014-03-11 20:57:45 |
 toddbrooker.jpg | 8950 | 2014-03-11 20:57:45 |
| useg-20131231.xml | 2998920 | 2014-03-11 20:57:45 |
| useg-20131231.xsd | 64398 | 2014-03-11 20:57:45 |
| useg-20131231_cal.xml | 116644 | 2014-03-11 20:57:45 |
| useg-20131231_def.xml | 350240 | 2014-03-11 20:57:45 |
| useg-20131231_lab.xml | 1146733 | 2014-03-11 20:57:45 |
| useg-20131231_pre.xml | 643199 | 2014-03-11 20:57:45 |