Atascosa County, TX oil and gas wells
9,023 wells: 3,064 active, 4,344 plugged, run by 595 operators.
Atascosa County, TX ranks #58 among Texas counties by wells on record, with 1% of the state's 1,397,551 wells. 3,064 of its wells (34%) are active, above the statewide share of 27%. Another 432 are shut in or temporarily abandoned. Of the 7,794 wells here with a type on record, 73% are oil wells, 22% dry holes and 2% gas wells. Drilling records here go back to 1925. Of the 4,155 wells with a drilling date, 991 (24%) were drilled in 2016 or later, the most recent in 2026. 700 wells are listed as permitted or being drilled. 417 wells have been plugged since 2016 (counting wells with a plug date on record). Wells with a recorded depth average 7,327 ft. 595 operators have wells here. The largest by active wells is MARATHON OIL EF LLC, with 431 active (14% of the county's active wells).
Figures from the Railroad Commission of Texas, updated 2026-10-17.
Top operators in Atascosa
Wells
Not plugged · All wells · Plugged · Orphaned · Disposal (SWD) and injection
| Well | API / ID | Status | Type | Operator |
|---|---|---|---|---|
| (no name) | 42-013-34682 | Permitted | Unknown | — |
| (no name) | 42-013-34647 | Permitted | Unknown | — |
| (no name) | 42-013-36137 | Permitted | Unknown | — |
| (no name) | 42-013-35685 | Permitted | Unknown | — |
| (no name) | 42-013-35686 | Permitted | Unknown | — |
| (no name) | 42-013-35687 | Permitted | Unknown | — |
| (no name) | 42-013-35684 | Permitted | Unknown | — |
| (S.A.H.) V.H. HRBACEK 2 | 42-013-30034 | Active | Oil | 🔒 Sign in free |
| 4K BLACK HILLS UNIT A 1H | 42-013-36071 | Active | Oil | 🔒 Sign in free |
| 4K BLACK HILLS UNIT B 2H | 42-013-36073 | Active | Oil | 🔒 Sign in free |
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Atascosa County, TX well questions
How many oil and gas wells are in Atascosa County, TX?
9,023 wells are on record: 3,064 active, 432 shut in or temporarily abandoned and 4,344 plugged.
Who operates the most wells in Atascosa County, TX?
MARATHON OIL EF LLC, with 431 active wells and 505 wells on record here. The table above lists the top operators.
Are new wells still being drilled in Atascosa County, TX?
Yes. 991 wells were drilled in 2016 or later, the most recent in 2026, and 700 more are permitted or being drilled.