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Comment on “The intensification of the water footprint of hydraulic fracturing”

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Science Advances  21 Feb 2020:
Vol. 6, no. 8, eaav2110
DOI: 10.1126/sciadv.aav2110
  • Table 1 Water intensity of new-well oil and gas production (liters/gigajoule).

    Sources and notes: Water volumes and well counts from tables S1 and S2 of Kondash et al. (1). New natural gas and oil production volumes are based on data from the U.S. Energy Information’s Drilling Productivity Report (3). The annual water use for hydraulic fracturing is divided by the energy content in the annual sums of new oil and gas production to generate the water intensity of production in each year. See the Supplementary Materials for details.

    YearHaynesvilleMarcellusPermianNiobraraEagle FordBakkenCumulative
    20119.1
    20128.023.32.411.716.79.312.8
    20139.416.73.27.814.89.511.5
    20148.710.44.515.012.411.310.2
    201510.710.515.217.414.212.913.5
    20169.76.122.920.513.516.315.3
    2016/2012 or 2011
    (Bakken only)
    +22%−74%+848%+76%−19%+79%+19%

Supplementary Materials

  • Supplementary material for this article is available at http://advances.sciencemag.org/cgi/content/full/6/8/eaav2110/DC1

    Supplementary Materials and Methods

    Fig. S1. First 12 months of oil production per well, Permian basin, 2011–2016.

    Fig. S2. First 12 months of natural gas production per well, Permian basin, 2011–2016.

    Table S1. Haynesville region.

    Table S2. Marcellus region.

    Table S3. Permian region.

    Table S4. Niobrara region.

    Table S5. Eagle Ford region.

    Table S6. Bakken region.

    Table S7. Totals across all regions.

    Table S8. Comparison of energy production estimates.

  • Supplementary Materials

    This PDF file includes:

    • Supplementary Materials and Methods
    • Fig. S1. First 12 months of oil production per well, Permian basin, 2011–2016.
    • Fig. S2. First 12 months of natural gas production per well, Permian basin, 2011–2016.
    • Table S1. Haynesville region.
    • Table S2. Marcellus region.
    • Table S3. Permian region.
    • Table S4. Niobrara region.
    • Table S5. Eagle Ford region.
    • Table S6. Bakken region.
    • Table S7. Totals across all regions.
    • Table S8. Comparison of energy production estimates.

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