Texas Mineral Radar → operators → MARATHON OIL EF LLC
MARATHON OIL EF LLC
RRC operator #525398 · permits 2026-07-10 · completions 2026-02-13 · well status 2026-07
Drilling permits
131
32 last year
Horizontal
131
Rule 37 exceptions
36
Counties
6
Pro
Watch every filing by MARATHON OIL EF LLC
Landmen and royalty investors track a single operator across counties — every new permit and spacing exception the day it's filed. That's an operator-wide watch on the Pro plan.
See Pro →Recent permits by MARATHON OIL EF LLC
| Filed | County | Lease | Type | Flags |
|---|---|---|---|---|
| 2026-06-18 | GONZALES | BARNHART (EF)-JM PRES SA | Drill | Horiz |
| 2026-06-18 | GONZALES | BARNHART (EF) K-JM PRES SA | Drill | Horiz |
| 2026-06-15 | KARNES | DULL-HAND-CHO SA A | Drill | Horiz |
| 2026-06-15 | KARNES | CHOATE 01 | Drill | Horiz |
| 2026-05-28 | KARNES | WESTON-WEST-PMT SA B | Drill | Horiz |
| 2026-05-28 | KARNES | WESTON-WEST-PMT SA A | Drill | Horiz |
| 2026-05-28 | KARNES | WESTON-PMT SA E | Drill | Horiz |
| 2026-05-28 | KARNES | WESTON-PMT SA D | Drill | Horiz |
| 2026-05-28 | KARNES | WESTON-PMT SA C | Drill | Horiz |
| 2026-05-28 | DEWITT | HOPE-SAUNDERS B SA E | Drill | Horiz |
| 2026-05-28 | DEWITT | HOPE-SAUNDERS B SA D | Drill | Horiz |
| 2026-05-28 | DEWITT | HOPE-SAUNDERS B SA C | Drill | Horiz |
| 2026-05-28 | DEWITT | HOPE-SAUNDERS B SA B | Drill | Horiz |
| 2026-05-28 | DEWITT | HOPE-SAUNDERS B SA A | Drill | Horiz |
| 2026-05-28 | DEWITT | HOPE-DWOR-SAUN B SA A | Drill | Horiz |
| 2026-05-28 | DEWITT | SCHORLEMER QUAD SA A | Drill | Horiz |
| 2026-05-19 | ATASCOSA | GRIFFIN-KRUEGER SA 1 | Drill | Horiz |
| 2026-05-14 | DEWITT | SCHORLEMER-CHAR SA A | Drill | Horiz |
| 2026-04-30 | ATASCOSA | MAUCH-WRIGHT HENKE SA2 | Drill | Horiz |
| 2026-04-30 | ATASCOSA | MAUCH-WRIGHT HENKE SA1 | Drill | Horiz |
| 2026-04-30 | ATASCOSA | FOUSHEE-WRIGHT KEATHLEY SA6 | Drill | Horiz |
| 2026-04-30 | ATASCOSA | FOUSHEE-WRIGHT KEATHLEY SA5 | Drill | Horiz |
| 2026-04-23 | KARNES | KIRK-DEBILL SA5 | Drill | Horiz |
| 2026-04-16 | KARNES | MARTINEZ-HENKE UNIT | Drill | Horiz |
| 2026-04-16 | KARNES | MARTINEZ-HENKE SA A | Drill | Horiz |
| 2026-04-16 | KARNES | MARTINEZ UNIT | Drill | Horiz |
| 2026-03-04 | KARNES | HEMB-BLACK-LEVI SA B | Drill | Horiz |
| 2026-03-04 | KARNES | HEMB-BLACK-LEVI SA A | Drill | Horiz |
| 2026-02-04 | KARNES | MUELLER-WARNER SA3 | Drill | Horiz |
| 2026-02-04 | KARNES | MUELLER-WARNER SA2 | Drill | Horiz |
This report compiles and structures publicly available oil & gas records from the Railroad Commission of Texas — drilling permits, completions, well status, and lease production. We monitor development activity and public filings near a location you tell us about; we do NOT determine mineral ownership, confirm what you own, or provide legal, tax, or investment advice. Nothing here replaces a title opinion, a landman, or reading the official RRC filing. Activity is mapped to the operator-filed permit surface location (NAD27, precision disclaimed by the RRC), not your mineral tract. Data is current only as of the source vintage shown on the page. Our total liability for any report is capped at the amount you paid for it. Found an error? Reply to any email and a human will correct it.