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. 2020 Apr 22;6(17):eaaz5120. doi: 10.1126/sciadv.aaz5120

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Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 2 — (A and C) Time series of annual O/G production in black and the corresponding fractions of total U.S. production in blue [data from the Drilling Productivity Report by EIA (13)]. (B and D) Spatial distribution of oil and gas production for 2018 [data from Enverus Drillinginfo (50)]. Oil production includes both crude and condensate production. Gas production represents gross (before processing) gas production.