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Eagle Ford Shale

The Eagle Ford Shale arcs across South Texas from the Mexican border toward the Brazos River, producing oil, condensate, and gas in bands by depth. Karnes, La Salle, Webb, and DeWitt counties lead drilling activity in the play.

Permits on record since 1976-05-28.

Permits (90d)

266

vs Prior 90d

-6%

Operators (90d)

38

Avg Depth (90d)

8,643

Hz % (90d)

79%

All Time

164,407

Permit Activity

Most Active Counties

COUNTY90DALL TIME
Upton11214,917
Reagan7312,987
Irion296,806
Shackelford108,799
Taylor104,433
Nolan74,021
Fisher63,173
Crockett513,032
Throckmorton26,358
Callahan26,185
Jones25,796
Runnels16,105

Top Operators (by last 12 months)

OPERATOR12MOALL TIME
PIONEER NATURAL RES. USA, INC.1703,801
DE CENTRAL OPERATING, LLC129277
COG OPERATING LLC861,947
APACHE CORPORATION761,506
CIVITAS PERMIAN OPERATING, LLC71297
TRIPLE CROWN RESOURCES, LLC47334
FIREBIRD ENERGY II LLC45152
OVINTIV USA INC.43221
SUMMIT PETROLEUM LLC33868
DISCOVERY NATURAL RESOURCES LLC28408
SM ENERGY COMPANY28375
CHEYENNE RESOURCES, INC.24563

Recent Permits

PERMITOPERATORLEASECOUNTYTYPEISSUED
916102PIONEER NATURAL RES. USA, INC.ALDWELL 2HReaganDRILL2026-07-22
916104PIONEER NATURAL RES. USA, INC.ALDWELL 2JReaganDRILL2026-07-22
915903PIONEER NATURAL RES. USA, INC.ALDWELL 2FReaganDRILL2026-07-22
915901PIONEER NATURAL RES. USA, INC.ALDWELL 2DReaganDRILL2026-07-22
915897PIONEER NATURAL RES. USA, INC.ALDWELL 2BReaganDRILL2026-07-22
916168TDC ENGINEERING, INC.MRS KILGORENolanDRILL2026-07-21
917125FELDERHOFF PRODUCTION COMPANYFRANCINEReaganRENTR2026-07-20
917090DE CENTRAL OPERATING, LLCSTL 15 EAST M 1216-1215ReaganDRILL2026-07-14
917003APACHE CORPORATIONCONNELL 38 DUptonDRILL2026-07-14
917095DE CENTRAL OPERATING, LLCSTL 15 EAST O 1216-1215ReaganDRILL2026-07-14
917089DE CENTRAL OPERATING, LLCSTL 15 EAST L 1216-1215ReaganDRILL2026-07-14
916184CHEVRON U. S. A. INC.RWT KATY 9-28 UNITUptonDRILL2026-07-14