Over 1.1 Million Active Oil and Gas Wells in the US

Over 1.1 Million Active Oil and Gas Wells in the US

BY MATT KELSO – MARCH 4, 2014

POSTED IN: ARTICLES, DATA AND ANALYSIS, FEATURE

Many people ask us how many wells have been hydraulically fractured in the United States.  It is an excellent question, but not one that is easily answered; most states don’t release data on well stimulation activities.  Also, since the data are released by state regulatory agencies, it is necessary to obtain data from each state that has oil and gas data to even begin the conversation.  We’ve finally had a chance to complete that task, and have been able to aggregate the following totals:

Oil and gas summary data of drilled wells in the United States.

 

While data on hydraulically fractured wells is rarely made available, the slant of the wells are often made accessible.  The well types are as follows:

Directional:  Directional wells are those where the top and the bottom of the holes do not line up vertically.  In some cases, the deviation is fairly slight.  These are also known as deviated or slant wells.

Horizontal:  Horizontal wells are directional wells, where the well bore makes something of an “L” shape.  States may have their own definition for horizontal wells.  In Alaska, these wells are defined as those deviating at least 80° from vertical.  Currently, operators are able to drill horizontally for several miles.

Directional or Horizontal:  These wells are known to be directional, but whether they are classified as horizontal or not could not be determined from the available data.  In many cases, the directionality was determined by the presence of directional sidetrack codes in the well’s API number.

Vertical:  Wells in which the top hole and bottom hole locations are in alignment.  States may have differing tolerances for what constitutes a vertical well, as opposed to directional.

Hydraulically Fractured:  As each state releases data differently, it wasn’t always possible to get consistent data.  These wells are known to by hydraulically fractured, but the slant of the well is unknown.

Not Fractured:  These wells have not been hydraulically fractured, and the slant of the well is unknown.

Unknown:  Nothing is known about the slant, stimulation, or target formation of the well in question.

Unknown (Shale Formation):  Nothing is known about the slant or stimulation of the wells in question, however, it is known that the target formation is a major shale play.  Therefore, it is probably that the well has been hydraulically fractured, with a strong possibility of being drilled horizontally.

via Over 1.1 Million Active Oil and Gas Wells in the US.