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Last update: April 13, 2020, 15:25 EDT


The Drilling Productivity Report uses recent data on the total number of drilling rigs in operation along with estimates of drilling productivity and estimated changes in production from existing natural gas wells to provide estimated changes in natural gas production for two key gas-dominant regions (Appalachia region: Marcellus and Utica, and Haynesville region). EIA’s approach does not distinguish between oil-directed rigs and gas-directed rigs because once a well is completed it may produce both oil and gas; more than half of the wells do that.

  • Rigs - total number of rigs in Appalachia and Haynesville (lagged by two months).
  • Average Production per Rig - the estimation of new-well production per rig uses several months of recent historical data on total production from new wells for each field divided by the region's monthly rig count.
  • Total Production - all natural gas production from both new and legacy wells since 2007. This production is based on all wells reported to the state oil and gas agencies.
  • Legacy Production - estimates of total natural gas production from all the wells other than the new wells. The trend is dominated by the well depletion rates, but other circumstances can influence the direction of the change. For example, well freeze-offs or hurricanes can cause production to significantly decline in any given month, resulting in a production increase the next month when production simply returns to normal levels.
  • Annual Growth Rates (3rd chart) - simple y-o-y percentage change in the number of rigs, average production per rig, total production and legacy production.
  • Wells (4th chart) - the total number of drilled, completed as well as drilled but uncompleted (DUCs) wells in a month.

All the charts are interactive. You can click on any series in the legend to hide/show the data. You can also click on the chart and drag out a specific area you wish to zoom. Alternatively, use calendar filter to select a specific data range. Also, to print or download the chart, click on the "menu" button in the top right corner of the chart.

Updated on a monthly basis.

Source: U.S. Energy Information Administration

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