[[file:evaluating-top-and-fault-seal_fig10-45.png|thumb|300px|{{figure number|1}}Distribution of oil and gas production from more than 20,000 wells.<ref name=ch10r47 /> Copyright: Oil & Gas Journal.]] | [[file:evaluating-top-and-fault-seal_fig10-45.png|thumb|300px|{{figure number|1}}Distribution of oil and gas production from more than 20,000 wells.<ref name=ch10r47 /> Copyright: Oil & Gas Journal.]] |