Karnes County, TX oil and gas wells
9,197 wells: 5,394 active, 1,903 plugged, run by 392 operators.
Karnes County, TX ranks #53 among Texas counties by wells on record, with 1% of the state's 1,397,551 wells. 5,394 of its wells (59%) are active, above the statewide share of 27%. Another 940 are shut in or temporarily abandoned. Of the 8,183 wells here with a type on record, 61% are oil wells, 19% gas wells and 14% dry holes. Drilling records here go back to 1935. Of the 6,668 wells with a drilling date, 3,925 (59%) were drilled in 2016 or later, the most recent in 2026. 723 wells are listed as permitted or being drilled. 166 wells have been plugged since 2016 (counting wells with a plug date on record). Wells with a recorded depth average 11,491 ft. 392 operators have wells here. The largest by active wells is MARATHON OIL EF LLC, with 1,492 active (28% of the county's active wells).
Figures from the Railroad Commission of Texas, updated 2026-10-17.
Top operators in Karnes
Wells
Not plugged · All wells · Plugged · Orphaned · Disposal (SWD) and injection
| Well | API / ID | Status | Type | Operator |
|---|---|---|---|---|
| CROSSVALLIA C 3H | 42-255-37090 | Active | Oil | 🔒 Sign in free |
| CROW A 1H | 42-255-31770 | Temporarily abandoned | Gas | 🔒 Sign in free |
| CROW A 14H | 42-255-36629 | Active | Gas | 🔒 Sign in free |
| CROW A 13H | 42-255-36628 | Active | Gas | 🔒 Sign in free |
| CROW A 8H | 42-255-36621 | Active | Gas | 🔒 Sign in free |
| CROW A 19H | 42-255-36684 | Active | Gas | 🔒 Sign in free |
| CROW A 16H | 42-255-36638 | Active | Gas | 🔒 Sign in free |
| CROW A 2H | 42-255-32343 | Active | Gas | 🔒 Sign in free |
| CROW A 15H | 42-255-36637 | Active | Gas | 🔒 Sign in free |
| CROW A 11H | 42-255-36626 | Active | Gas | 🔒 Sign in free |
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Karnes County, TX well questions
How many oil and gas wells are in Karnes County, TX?
9,197 wells are on record: 5,394 active, 940 shut in or temporarily abandoned and 1,903 plugged.
Who operates the most wells in Karnes County, TX?
MARATHON OIL EF LLC, with 1,492 active wells and 1,777 wells on record here. The table above lists the top operators.
Are new wells still being drilled in Karnes County, TX?
Yes. 3,925 wells were drilled in 2016 or later, the most recent in 2026, and 723 more are permitted or being drilled.