🖤🪨⛽

#shale #shale rock #sedimentary rock #rock layers #shale oil

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#shale gas #shale oil #fossil fuel #natural gas #oil source rock

🪨💧⚫⛽

#oil shale #shale oil #kerogen #fossil fuel #hydrocarbon

⬇️💧💥🛢️

#fracking #hydraulic fracturing #shale oil #unconventional drilling #water injection #oil extraction