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American Association of Professional Landmen |
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American Petroleum Institute |
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Energy Information Administratio |
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American Association of Petroleum Geologist AAPG
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American Gas Association (AGA)
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United States Geological Survey (USGS)
Energy Research and News
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Rocky Mountain Mineral Law Foundation |
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Oil and Gas Journal
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American Oil and Gas Reporter |
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Oil and Gas Investor |
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Bureau of Land Management (BLM) |
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Michigan Oil and Gas Association (MOGA) |