Callahan County, TX oil and gas wells
17,561 wells: 2,827 active, 11,995 plugged, run by 984 operators.
Callahan County, TX ranks #15 among Texas counties by wells on record, with 1% of the state's 1,397,551 wells. 2,827 of its wells (16%) are active, below the statewide share of 27%. Another 251 are shut in or temporarily abandoned. Of the 15,036 wells here with a type on record, 50% are dry holes, 44% oil wells and 3% gas wells. Drilling records here go back to 1925. Of the 4,079 wells with a drilling date, 69 (2%) were drilled in 2016 or later, the most recent in 2026. 1,630 wells are listed as permitted or being drilled. 602 wells have been plugged since 2016 (counting wells with a plug date on record). 984 operators have wells here. The largest by active wells is MERKAZ DRILLING LLC, with 37 active (1% of the county's active wells).
Figures from the Railroad Commission of Texas, updated 2026-10-17.
Top operators in Callahan
Wells
Not plugged · All wells · Plugged · Orphaned · Disposal (SWD) and injection
| Well | API / ID | Status | Type | Operator |
|---|---|---|---|---|
| (no name) 2 | 634270 | Permitted | Unknown | — |
| (no name) 2 | 634272 | Active | Oil | — |
| (no name) 5 | 634275 | Active | Oil | — |
| (no name) 1 | 637695 | Active | Oil | — |
| (no name) | 634279 | Active | Oil | — |
| (no name) 2 | 634281 | Active | Oil | — |
| (no name) 2 | 634283 | Active | Oil | — |
| (no name) | 634285 | Active | Oil | — |
| (no name) 1 | 634289 | Active | Oil | — |
| (no name) | 634292 | Active | Oil | — |
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Callahan County, TX well questions
How many oil and gas wells are in Callahan County, TX?
17,561 wells are on record: 2,827 active, 251 shut in or temporarily abandoned and 11,995 plugged.
Who operates the most wells in Callahan County, TX?
MERKAZ DRILLING LLC, with 37 active wells and 72 wells on record here. The table above lists the top operators.
Are new wells still being drilled in Callahan County, TX?
Yes. 69 wells were drilled in 2016 or later, the most recent in 2026, and 1,630 more are permitted or being drilled.