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Track Drilling (Rigs by operator) | Completions (Frac Spreads)

 San Joaquin Basin Top Operators
(Undrilled-Permits)
Company    Last 12 Months
Hilcorp Energy Company    50
DJR Energy    44
Enduring Resources, Llc    18
   11
   7
   1

   Drilling Permits Trends ( Last 24 Months)


 San Joaquin Basin - Well Completion Trend

Completions By
Company
2025(YTD)
Count
Hilcorp Energy Company 49
DJR Energy 13
Enduring Resources, Llc 6
Completions By
County
2025(YTD)
Count
San juan 44
Rio arriba 20
La plata 4

 San Joaquin Basin Rig Data : August 30, 2025


Drilling Trends from May 4, 2011 - August 30, 2025

 San Joaquin Basin Overview



Located in southern California, the San Joaquin Basin is home to two highly unique shale targets - the Kreyenhagen Shale and the Monterey Shale. Unlike other popular shales such as the Eagle Ford or Bakken, the source rock is heavily fractured due to the region's earthquake-prone history. This unique characteristic puts the basin in a category not shared by the majority of onshore U.S. plays.

Companies currently active in the San Joaquin Basin include Solimar Energy, Zodiac Exploration and East West Petroleum.

  San Joaquin Basin Transactions By Quarter ($MM)