Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000106455-13-000012-index-headers.html | 2013-03-12 16:56:34 | |
| 0000106455-13-000012-index.html | 2013-03-12 16:56:34 | |
| 0000106455-13-000012.txt | 2013-03-12 16:56:34 | |
 0000106455-13-000012-xbrl.zip | 576089 | 2013-03-12 16:56:34 |
| exh10-1.htm | 120206 | 2013-03-12 16:56:34 |
| exh10-10.htm | 40028 | 2013-03-12 16:56:34 |
| exh10-11.htm | 31623 | 2013-03-12 16:56:34 |
| exh10-13.htm | 175395 | 2013-03-12 16:56:34 |
| exh10-8.htm | 45290 | 2013-03-12 16:56:34 |
| exh10-9.htm | 43427 | 2013-03-12 16:56:34 |
| exh12-1.htm | 42154 | 2013-03-12 16:56:34 |
| exh211.htm | 15855 | 2013-03-12 16:56:34 |
| exh23-1.htm | 3060 | 2013-03-12 16:56:34 |
| exh23-2.htm | 2902 | 2013-03-12 16:56:34 |
| exh95-1_2012k.htm | 110432 | 2013-03-12 16:56:34 |
| FilingSummary.xml | 66108 | 2013-03-12 16:56:34 |
| Financial_Report.xls | 6711633 | 2013-03-12 16:56:34 |
 g277270g06k08.jpg | 49877 | 2013-03-12 16:56:34 |
 k2012_minemap.jpg | 125256 | 2013-03-12 16:56:34 |
 kgraph_2012.jpg | 207405 | 2013-03-12 16:56:34 |
| R1.htm | 37286 | 2013-03-12 16:56:34 |
| R10.htm | 18577 | 2013-03-12 16:56:34 |
| R100.htm | 12328 | 2013-03-12 16:56:34 |
| R101.htm | 79822 | 2013-03-12 16:56:34 |
| R102.htm | 46293 | 2013-03-12 16:56:34 |
| R103.htm | 27010 | 2013-03-12 16:56:34 |
| R104.htm | 32048 | 2013-03-12 16:56:34 |
| R105.htm | 20080 | 2013-03-12 16:56:34 |
| R106.htm | 10036 | 2013-03-12 16:56:34 |
| R107.htm | 328120 | 2013-03-12 16:56:34 |
| R108.htm | 193049 | 2013-03-12 16:56:34 |
| R109.htm | 66985 | 2013-03-12 16:56:34 |
| R11.htm | 72545 | 2013-03-12 16:56:34 |
| R110.htm | 269858 | 2013-03-12 16:56:34 |
| R12.htm | 59515 | 2013-03-12 16:56:34 |
| R13.htm | 201215 | 2013-03-12 16:56:34 |
| R14.htm | 305836 | 2013-03-12 16:56:34 |
| R15.htm | 22601 | 2013-03-12 16:56:34 |
| R16.htm | 91172 | 2013-03-12 16:56:34 |
| R17.htm | 25702 | 2013-03-12 16:56:34 |
| R18.htm | 64378 | 2013-03-12 16:56:34 |
| R19.htm | 99677 | 2013-03-12 16:56:34 |
| R2.htm | 189076 | 2013-03-12 16:56:34 |
| R20.htm | 47575 | 2013-03-12 16:56:34 |
| R21.htm | 128679 | 2013-03-12 16:56:34 |
| R22.htm | 36433 | 2013-03-12 16:56:34 |
| R23.htm | 121893 | 2013-03-12 16:56:34 |
| R24.htm | 44851 | 2013-03-12 16:56:34 |
| R25.htm | 1731368 | 2013-03-12 16:56:34 |
| R26.htm | 149216 | 2013-03-12 16:56:34 |
| R27.htm | 32423 | 2013-03-12 16:56:34 |
| R28.htm | 84612 | 2013-03-12 16:56:34 |
| R29.htm | 16820 | 2013-03-12 16:56:34 |
| R3.htm | 35211 | 2013-03-12 16:56:34 |
| R30.htm | 80407 | 2013-03-12 16:56:34 |
| R31.htm | 41581 | 2013-03-12 16:56:34 |
| R32.htm | 220543 | 2013-03-12 16:56:34 |
| R33.htm | 305911 | 2013-03-12 16:56:34 |
| R34.htm | 21717 | 2013-03-12 16:56:34 |
| R35.htm | 98745 | 2013-03-12 16:56:34 |
| R36.htm | 18808 | 2013-03-12 16:56:34 |
| R37.htm | 70077 | 2013-03-12 16:56:34 |
| R38.htm | 98997 | 2013-03-12 16:56:34 |
| R39.htm | 34604 | 2013-03-12 16:56:34 |
| R4.htm | 96307 | 2013-03-12 16:56:34 |
| R40.htm | 130738 | 2013-03-12 16:56:34 |
| R41.htm | 31846 | 2013-03-12 16:56:34 |
| R42.htm | 124274 | 2013-03-12 16:56:34 |
| R43.htm | 42336 | 2013-03-12 16:56:34 |
| R44.htm | 1513399 | 2013-03-12 16:56:34 |
| R45.htm | 6011 | 2013-03-12 16:56:34 |
| R46.htm | 8410 | 2013-03-12 16:56:34 |
| R47.htm | 23373 | 2013-03-12 16:56:34 |
| R48.htm | 10046 | 2013-03-12 16:56:34 |
| R49.htm | 11757 | 2013-03-12 16:56:34 |
| R5.htm | 33003 | 2013-03-12 16:56:34 |
| R50.htm | 23215 | 2013-03-12 16:56:34 |
| R51.htm | 50910 | 2013-03-12 16:56:34 |
| R52.htm | 45840 | 2013-03-12 16:56:34 |
| R53.htm | 38330 | 2013-03-12 16:56:34 |
| R54.htm | 19960 | 2013-03-12 16:56:34 |
| R55.htm | 14863 | 2013-03-12 16:56:34 |
| R56.htm | 24774 | 2013-03-12 16:56:34 |
| R57.htm | 20930 | 2013-03-12 16:56:34 |
| R58.htm | 39144 | 2013-03-12 16:56:34 |
| R59.htm | 14962 | 2013-03-12 16:56:34 |
| R6.htm | 79100 | 2013-03-12 16:56:34 |
| R60.htm | 9838 | 2013-03-12 16:56:34 |
| R61.htm | 16893 | 2013-03-12 16:56:34 |
| R62.htm | 36414 | 2013-03-12 16:56:34 |
| R63.htm | 76935 | 2013-03-12 16:56:34 |
| R64.htm | 82011 | 2013-03-12 16:56:34 |
| R65.htm | 45147 | 2013-03-12 16:56:34 |
| R66.htm | 39550 | 2013-03-12 16:56:34 |
| R67.htm | 53826 | 2013-03-12 16:56:34 |
| R68.htm | 40694 | 2013-03-12 16:56:34 |
| R69.htm | 39558 | 2013-03-12 16:56:34 |
| R7.htm | 171051 | 2013-03-12 16:56:34 |
| R70.htm | 95506 | 2013-03-12 16:56:34 |
| R71.htm | 44043 | 2013-03-12 16:56:34 |
| R72.htm | 18573 | 2013-03-12 16:56:34 |
| R73.htm | 84414 | 2013-03-12 16:56:34 |
| R74.htm | 14117 | 2013-03-12 16:56:34 |
| R75.htm | 41905 | 2013-03-12 16:56:34 |
| R76.htm | 14124 | 2013-03-12 16:56:34 |
| R77.htm | 29219 | 2013-03-12 16:56:34 |
| R78.htm | 27601 | 2013-03-12 16:56:34 |
| R79.htm | 21098 | 2013-03-12 16:56:34 |
| R8.htm | 77063 | 2013-03-12 16:56:34 |
| R80.htm | 20987 | 2013-03-12 16:56:34 |
| R81.htm | 39206 | 2013-03-12 16:56:34 |
| R82.htm | 18862 | 2013-03-12 16:56:34 |
| R83.htm | 9063 | 2013-03-12 16:56:34 |
| R84.htm | 7530 | 2013-03-12 16:56:34 |
| R85.htm | 22603 | 2013-03-12 16:56:34 |
| R86.htm | 12920 | 2013-03-12 16:56:34 |
| R87.htm | 13909 | 2013-03-12 16:56:34 |
| R88.htm | 49250 | 2013-03-12 16:56:34 |
| R89.htm | 51860 | 2013-03-12 16:56:34 |
| R9.htm | 93952 | 2013-03-12 16:56:34 |
| R90.htm | 42867 | 2013-03-12 16:56:34 |
| R91.htm | 19596 | 2013-03-12 16:56:34 |
| R92.htm | 24442 | 2013-03-12 16:56:34 |
| R93.htm | 36622 | 2013-03-12 16:56:34 |
| R94.htm | 41128 | 2013-03-12 16:56:34 |
| R95.htm | 42610 | 2013-03-12 16:56:34 |
| R96.htm | 81578 | 2013-03-12 16:56:34 |
| R97.htm | 10247 | 2013-03-12 16:56:34 |
| R98.htm | 13200 | 2013-03-12 16:56:34 |
| R99.htm | 19659 | 2013-03-12 16:56:34 |
| report.css | 2721 | 2013-03-12 16:56:34 |
| Show.js | 6423 | 2013-03-12 16:56:34 |
 westmoreland.jpg | 7183 | 2013-03-12 16:56:34 |
 westmorelanda03.jpg | 7183 | 2013-03-12 16:56:34 |
 westmorelanda04.jpg | 7183 | 2013-03-12 16:56:34 |
| wlb-12312012x10k.htm | 6521962 | 2013-03-12 16:56:34 |
| wlb-12312012xexhibitx311.htm | 13418 | 2013-03-12 16:56:34 |
| wlb-12312012xexhibitx312.htm | 13471 | 2013-03-12 16:56:34 |
| wlb-12312012xexhibitx32.htm | 8942 | 2013-03-12 16:56:34 |
| wlb-20121231.xml | 7976906 | 2013-03-12 16:56:34 |
| wlb-20121231.xsd | 108072 | 2013-03-12 16:56:34 |
| wlb-20121231_cal.xml | 249026 | 2013-03-12 16:56:34 |
| wlb-20121231_def.xml | 679709 | 2013-03-12 16:56:34 |
| wlb-20121231_lab.xml | 1381824 | 2013-03-12 16:56:34 |
| wlb-20121231_pre.xml | 978629 | 2013-03-12 16:56:34 |