* [https://www.aapg.org/about/aapg/overview/committees/emd/articleid/26349/committee-emd-tight-oil-gas EMD Tight Oil & Gas Committee Homepage] | * [https://www.aapg.org/about/aapg/overview/committees/emd/articleid/26349/committee-emd-tight-oil-gas EMD Tight Oil & Gas Committee Homepage] |