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This category has the following 7 subcategories, out of 7 total.
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The following 12 pages are in this category, out of 12 total.
278:Environmental impact of the oil shale industry
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232:This list may not reflect recent changes
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290:History of the oil shale industry
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139:Oil shale infrastructure
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348:Spent shale
215:(2 C, 31 P)
119:(1 C, 14 P)
95:(2 C, 12 P)
361:Categories
191:(2 C, 1 P)
167:(2 C, 1 P)
143:(2 C, 3 P)
343:Shale oil
244:Oil shale
39:Oil shale
261:Coal oil
34:category
71:(20 C)
36:is
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