Oil & Gas Operator
Here are a few key data points for Marathon Oil Ef LLC. This page represents an aggregation of wells ( and leases where applicable ) to provide a more complete view when looking at oil and gas properties in the U.S.
| Operating State | TX |
|---|---|
| Production Dates | Oct 2010 - Mar 2026 |
| Total Oil Production | 552,956,464 BBLs |
| Total Gas Production | 1,677,859,297 MCF |
| Estimated Daily Oil Prod. | 86,410 BBLs |
| Estimated Daily Gas Prod. | 302,726 MCF |
| Estimated Daily Water Prod. | 74,987 BBLs |
| Producing Wells | 2,412 |
| API # | Well Name | Status | County | Est. Daily Oil Prod. | Est. Daily Gas Prod. | Est. Daily Water Prod. | Latitude | Longitude |
|---|---|---|---|---|---|---|---|---|
| API # | Well Name | Status | County | Est. Daily Oil Prod. | Est. Daily Gas Prod. | Est. Daily Water Prod. | Latitude | Longitude |
| 42-013-36200 | 74 RANCH E 11 | PRODUCING | Atascosa County, TX | 28.689404 | -98.353623 | |||
| 42-177-34695 | BARNHART (EF) 63H | PRODUCING | Gonzales County, TX | 29.238774 | -97.476571 | |||
| 42-177-34703 | BARNHART (EF)-J.M. PRESTON SA1 115H | PRODUCING | Gonzales County, TX | 29.302155 | -97.506669 | |||
| 42-177-34746 | BARNHART (EF)-J.M. PRESTON SA6 123H | PRODUCING | Gonzales County, TX | 29.312555 | -97.501206 | |||
| 42-255-38164 | BEST BATEMAN-BEST HUTH SA1 1H | Horizontal Well Surface Locatio | Karnes County, TX | 28.820102 | -98.007993 | |||
| 42-255-38165 | BEST FENNER-MORGAN SA1 1H | Horizontal Well Surface Locatio | Karnes County, TX | 28.820124 | -98.007918 | |||
| 42-255-38154 | DAVIS-ALEXANDER SA1 1H | PRODUCING | Karnes County, TX | 28.864128 | -97.835370 | |||
| 42-255-38153 | DAVIS-MENSIK SA1 1H | PRODUCING | Karnes County, TX | 28.864141 | -97.835475 | |||
| 42-255-38052 | DEMING-DEBILL SA1 1H | PRODUCING | Karnes County, TX | 28.894698 | -97.696846 | |||
| 42-255-38054 | DEMING-LONG SA1 1H | PRODUCING | Karnes County, TX | 28.894787 | -97.696726 | |||
| 42-255-38099 | ELIZONDO 01 07H | Horizontal Well Surface Locatio | Karnes County, TX | 28.928715 | -97.728966 | |||
| 42-255-38100 | ELIZONDO 01 08H | Horizontal Well Surface Locatio | Karnes County, TX | 28.928784 | -97.728964 | |||
| 42-255-38101 | ELIZONDO 01 09H | Horizontal Well Surface Locatio | Karnes County, TX | 28.928851 | -97.728966 | |||
| 42-255-38257 | FRANSEN UNIT 7H | Horizontal Well Surface Locatio | Karnes County, TX | 28.808008 | -97.980123 | |||
| 42-255-38258 | FRANSEN-DIRECT ASSETS SA1 1H | Horizontal Well Surface Locatio | Karnes County, TX | 28.808028 | -97.980077 | |||
| 42-255-38259 | FRANSEN-DIRECT ASSETS SA2 2H | Horizontal Well Surface Locatio | Karnes County, TX | 28.808058 | -97.979979 | |||
| 42-013-36187 | HIERHOLZER RETZLOFF-MCMAHON SA1 1H | PRODUCING | Atascosa County, TX | 28.806331 | -98.138972 | |||
| 42-013-36186 | HIERHOLZER RETZLOFF-MCMAHON SA2 2H | PRODUCING | Atascosa County, TX | 28.806286 | -98.139033 | |||
| 42-013-36185 | HIERHOLZER RETZLOFF-MCMAHON SA3 3H | PRODUCING | Atascosa County, TX | 28.806247 | -98.139118 | |||
| 42-255-38271 | JOHNSON-TSCHIRHART UNIT 10H | Horizontal Well Surface Locatio | Karnes County, TX | 28.776054 | -97.934476 | |||
| 42-255-38268 | JOHNSON-TSCHIRHART UNIT 7H | Horizontal Well Surface Locatio | Karnes County, TX | 28.775796 | -97.934369 | |||
| 42-255-38269 | JOHNSON-TSCHIRHART UNIT 8H | Horizontal Well Surface Locatio | Karnes County, TX | 28.775861 | -97.934396 | |||
| 42-255-38270 | JOHNSON-TSCHIRHART UNIT 9H | Horizontal Well Surface Locatio | Karnes County, TX | 28.775925 | -97.934423 | |||
| 42-255-38272 | JOHNSON-TSCHIRHART UNIT AC 10H | Horizontal Well Surface Locatio | Karnes County, TX | 28.775990 | -97.934449 | |||
| 42-255-38106 | KIRK-LONG SA1 1H | PRODUCING | Karnes County, TX | 28.916233 | -97.690134 | |||
| 42-123-35347 | KOOPMAN 01-L 01-S 01-A 01 SA1 01H | PRODUCING | DeWitt County, TX | 29.038751 | -97.556760 | |||
| 42-123-35348 | KOOPMAN 01-L 01-S 01-A 01 SA2 02H | PRODUCING | DeWitt County, TX | 29.038811 | -97.556722 | |||
| 42-013-36220 | MCS FOUNDATION UNIT 7H | PRODUCING | Atascosa County, TX | 28.761987 | -98.199741 | |||
| 42-013-36221 | MCS FOUNDATION UNIT 8H | PRODUCING | Atascosa County, TX | 28.762037 | -98.199791 | |||
| 42-013-36222 | MCS FOUNDATION UNIT 9H | PRODUCING | Atascosa County, TX | 28.762090 | -98.199841 | |||
| 42-013-36223 | MCS FOUNDATION-TOM FAMILY USW A 1 | PRODUCING | Atascosa County, TX | 28.762143 | -98.199891 | |||
| 42-013-36215 | MIDDLE MCCOWEN 133HR | PRODUCING | Atascosa County, TX | 28.692466 | -98.365442 | |||
| 42-013-36098 | MIDDLE MCCOWEN 175H | PRODUCING | Atascosa County, TX | 28.664346 | -98.372838 | |||
| 42-013-36104 | MIDDLE MCCOWEN 181H | PRODUCING | Atascosa County, TX | 28.672060 | -98.361835 | |||
| 42-013-36197 | MIDDLE MCCOWEN 191H | PRODUCING | Atascosa County, TX | 28.692331 | -98.365617 | |||
| 42-013-35966 | MIDDLE MCCOWEN 289H | PRODUCING | Atascosa County, TX | 28.692646 | -98.365211 | |||
| 42-255-38261 | MILLER RIDOUT MIKKELSON SA1 1H | Horizontal Well Surface Locatio | Karnes County, TX | 28.870405 | -97.927594 | |||
| 42-255-38265 | MILLER RIDOUT MIKKELSON SA3 3H | Horizontal Well Surface Locatio | Karnes County, TX | 28.870475 | -97.927594 | |||
| 42-255-38262 | MILLER-RIDOUT UNIT 502H | Horizontal Well Surface Locatio | Karnes County, TX | 28.870544 | -97.927594 | |||
| 42-255-38061 | PATINO UNIT 5H | PRODUCING | Karnes County, TX | 28.777378 | -97.912797 | |||
| 42-255-38059 | PATINO-FRANKE UNIT SA1 1H | PRODUCING | Karnes County, TX | 28.777278 | -97.912906 | |||
| 42-013-36205 | R MAY A-MAY GIRLS CHAPMAN SA2 2H | PRODUCING | Atascosa County, TX | 28.713705 | -98.240500 | |||
| 42-013-36204 | R MAY A-SCHROEDER CHAPMAN SA1 1H | PRODUCING | Atascosa County, TX | 28.713618 | -98.240619 | |||
| 42-255-38077 | REYNOLDS GAS UNIT 2 2H | PRODUCING | Karnes County, TX | 28.905886 | -97.777381 | |||
| 42-255-38078 | REYNOLDS GAS UNIT 2 3H | PRODUCING | Karnes County, TX | 28.905833 | -97.777433 | |||
| 42-255-38118 | RIDLEY 01 12H | PRODUCING | Karnes County, TX | 28.893355 | -97.774491 | |||
| 42-255-38120 | RIDLEY 01 13H | PRODUCING | Karnes County, TX | 28.893321 | -97.774397 | |||
| 42-255-38121 | RIDLEY 01 16H | PRODUCING | Karnes County, TX | 28.893405 | -97.774522 | |||
| 42-255-38057 | RIPPSTEIN-HONS RAFTER SA1 1H | PRODUCING | Karnes County, TX | 28.893699 | -97.951189 | |||
| 42-255-38058 | RIPPSTEIN-HONS RAFTER SA2 2H | PRODUCING | Karnes County, TX | 28.893729 | -97.951267 |
| Lease # | Lease Name | County | Monthly Oil Prod. | Monthly Gas Prod. |
|---|---|---|---|---|
| Lease # | Lease Name | County | Monthly Oil Prod. | Monthly Gas Prod. |
| 01-21737 | 74 RANCH E | Atascosa County, TX | ||
| 01-20608 | 74 RANCH UNIT S3 | Atascosa County, TX | ||
| 01-15397 | BARNHART (EF) | Gonzales County, TX | ||
| 02-13128 | BARNHART (EF)-HFS SA1 | Gonzales County, TX | ||
| 02-13181 | BARNHART (EF)-HFS SA2 | Gonzales County, TX | ||
| 02-13148 | BARNHART (EF)-HFS SA3 | Gonzales County, TX | ||
| 02-13134 | BARNHART (EF)-HFS SA4 | Gonzales County, TX | ||
| 02-13152 | BARNHART (EF)-HFS SA5 | Gonzales County, TX | ||
| 02-13118 | BARNHART (EF)-HFS SA6 | Gonzales County, TX | ||
| 02-13130 | BARNHART (EF)-HFS SA7 | Gonzales County, TX | ||
| 02-13135 | BARNHART (EF)-HFS SA8 | Gonzales County, TX | ||
| 01-21712 | BARNHART (EF)-J.M. PRESTON SA1 | Gonzales County, TX | ||
| 02-13131 | BARNHART (EF)-J.M. PRESTON SA10 | Gonzales County, TX | ||
| 02-13129 | BARNHART (EF)-J.M. PRESTON SA6 | Gonzales County, TX | ||
| 02-300842 | DAVIS-ALEXANDER SA1 1H | Karnes County, TX | ||
| 02-300819 | DAVIS-MENSIK SA1 1H | Karnes County, TX | ||
| 02-298263 | DEBILL-LISKA SA1 1H | Karnes County, TX | ||
| 02-298251 | DEMING-DEBILL SA1 1H | Karnes County, TX | ||
| 02-298466 | DEMING-LONG SA1 1H | Karnes County, TX | ||
| 01-17741 | GUAJILLO EAST | Atascosa County, TX | ||
| 01-21771 | HIERHOLZER RETZLOFF-MCMAHON SA1 | Atascosa County, TX | ||
| 01-21772 | HIERHOLZER RETZLOFF-MCMAHON SA2 | Atascosa County, TX | ||
| 01-21723 | HIERHOLZER RETZLOFF-MCMAHON SA3 | Atascosa County, TX | ||
| 02-10539 | HONS RAFTER UNIT | Karnes County, TX | ||
| 02-298042 | HOPE-BRUNS SA1 1H | DeWitt County, TX | ||
| 02-09944 | JULIE BECK | Karnes County, TX | ||
| 02-299069 | KIRK-LONG SA1 1H | Karnes County, TX | ||
| 02-296667 | KOOPMAN 01-L 01-S 01-A 01 SA1 01H | DeWitt County, TX | ||
| 02-296675 | KOOPMAN 01-L 01-S 01-A 01 SA2 02H | DeWitt County, TX | ||
| 02-299127 | LESKE-MOTL SA C 3H | DeWitt County, TX | ||
| 01-21791 | MCS FOUNDATION UNIT | Atascosa County, TX | ||
| 01-21800 | MCS FOUNDATION-TOM FAMILY USW A | Atascosa County, TX | ||
| 01-15638 | MIDDLE MCCOWEN | Atascosa County, TX | ||
| 02-10091 | MOHR-HONS UNIT | Karnes County, TX | ||
| 02-299805 | PATINO UNIT 5H | Karnes County, TX | ||
| 02-299074 | PATINO UNIT 9H | Karnes County, TX | ||
| 02-299143 | PATINO-FRANKE UNIT SA1 1H | Karnes County, TX | ||
| 01-21798 | R MAY A-MAY GIRLS CHAPMAN SA2 | Atascosa County, TX | ||
| 01-21797 | R MAY A-SCHROEDER CHAPMAN SA1 | Atascosa County, TX | ||
| 01-16012 | R. MAY A | Atascosa County, TX | ||
| 01-21496 | RETZLOFF-MAY-TOM SA1 | Atascosa County, TX | ||
| 02-10222 | REYNOLDS GAS UNIT 2 | Karnes County, TX | ||
| 02-11355 | RIDLEY 01 | Karnes County, TX | ||
| 02-297962 | RIDLEY FARMS-DOUGLAS SA1 1H | Karnes County, TX | ||
| 02-12866 | RIPPSTEIN-HONS RAFTER SA1 | Karnes County, TX | ||
| 02-12865 | RIPPSTEIN-HONS RAFTER SA2 | Karnes County, TX | ||
| 01-21711 | STEWART GIESE HENKE SA2 | Atascosa County, TX | ||
| 01-21658 | STEWART GIESE HENKE SA4 | Atascosa County, TX | ||
| 02-10062 | TIPTON-JONAS UNIT | Karnes County, TX | ||
| 01-20500 | TOM-SMITH UNIT C | Atascosa County, TX |
| Property Name | County | Period | Monthly Oil Prod. | Monthly Gas Prod. | Production Range | Active Wells |
|---|---|---|---|---|---|---|
| Property Name | County | Period | Monthly Oil Prod. | Monthly Gas Prod. | Production Range | Active Wells |
| BAILEY-RETZLOFF UNIT | Karnes County, TX | Nov 2025 | 5,465 BBLs | 39,408 MCF | Oct 2012 - Dec 2025 | 21 |
| BARBOZA UNIT | Karnes County, TX | Nov 2025 | 7,160 BBLs | 68,434 MCF | Apr 2011 - Dec 2025 | 17 |
| BARNHART | Gonzales County, TX | Nov 2025 | 226,306 BBLs | 238,118 MCF | Jul 2010 - Dec 2025 | 121 |
| BARNHART (EF) H UNIT SA | Gonzales County, TX | Nov 2025 | 7,205 BBLs | 5,571 MCF | Aug 2023 - Dec 2025 | 2 |
| BARNHART (EF)-J.M. PRESTON SA | Gonzales County, TX | Nov 2025 | 60,697 BBLs | 38,395 MCF | Oct 2023 - Dec 2025 | 6 |
| BEAM MEYER-RICHARD BUTLER B SA | Karnes County, TX | Nov 2025 | 15,509 BBLs | 33,831 MCF | Aug 2024 - Dec 2025 | 3 |
| BEAM MEYER-TINA BUTLER SA1 | Karnes County, TX | Nov 2025 | 6,980 BBLs | 14,365 MCF | Aug 2024 - Dec 2025 | 1 |
| BEST BATEMAN | Karnes County, TX | Nov 2025 | 11,293 BBLs | 14,918 MCF | Aug 2025 - Dec 2025 | 8 |
| BEST FENNER | Karnes County, TX | Nov 2025 | 14,861 BBLs | 42,264 MCF | Aug 2025 - Dec 2025 | 9 |
| BILSKY-CHUMCHAL SA | Gonzales County, TX | Nov 2025 | 6,979 BBLs | 15,090 MCF | Nov 2022 - Dec 2025 | 3 |
| BRYSCH ADAMS-BRYSCH JONAS | Karnes County, TX | Nov 2025 | 9,101 BBLs | 23,866 MCF | Sep 2022 - Dec 2025 | 2 |
| BRYSCH-JONAS | Karnes County, TX | Nov 2025 | 8,873 BBLs | 15,733 MCF | Aug 2011 - Dec 2025 | 20 |
| CHALLENGER | Karnes County, TX | Nov 2025 | 20,727 BBLs | 49,703 MCF | Feb 2013 - Dec 2025 | 39 |
| CHAPMAN HUMMEL | Karnes County, TX | Nov 2025 | 10,831 BBLs | 16,399 MCF | Oct 2012 - Dec 2025 | 5 |
| COY CITY RANCH | Karnes County, TX | Nov 2025 | 9,415 BBLs | 26,453 MCF | May 2011 - Dec 2025 | 18 |
| DAVILA UNIT | Karnes County, TX | Nov 2025 | 6,636 BBLs | 57,968 MCF | Jul 2012 - Dec 2025 | 20 |
| DAVILA-GRAHAM | Karnes County, TX | Nov 2025 | 7,393 BBLs | 39,907 MCF | Sep 2012 - Dec 2025 | 10 |
| DAVIS | Karnes County, TX | Nov 2025 | 7,766 BBLs | 52,477 MCF | Jan 2011 - Dec 2025 | 14 |
| DAVIS-ALEXANDER SA1 1H | Karnes County, TX | Nov 2025 | 24,335 BBLs | 122,418 MCF | Apr 2025 - Dec 2025 | 1 |
| DAVIS-MENSIK SA1 1H | Karnes County, TX | Nov 2025 | 27,186 BBLs | 126,986 MCF | Apr 2025 - Dec 2025 | 1 |
| DEATLEY-GRIFFIN | Atascosa County, TX | Nov 2025 | 7,759 BBLs | 10,731 MCF | Nov 2011 - Dec 2025 | 5 |
| DEBILL-LISKA SA1 1H | Karnes County, TX | Nov 2025 | 5,941 BBLs | 57,662 MCF | Sep 2024 - Dec 2025 | 1 |
| DEMING-DEBILL SA1 1H | Karnes County, TX | Nov 2025 | 8,378 BBLs | 87,491 MCF | Sep 2024 - Dec 2025 | 1 |
| DEMING-HERBERN SA1 | Karnes County, TX | Nov 2025 | 4,629 BBLs | 53,049 MCF | Sep 2024 - Dec 2025 | 1 |
| DEMING-LONG SA1 1H | Karnes County, TX | Nov 2025 | 9,540 BBLs | 101,134 MCF | Sep 2024 - Dec 2025 | 1 |
| DULLYE 01 | Karnes County, TX | Nov 2025 | 13,378 BBLs | 144,118 MCF | Nov 2010 - Dec 2025 | 8 |
| EASLEY UNIT | Karnes County, TX | Nov 2025 | 13,647 BBLs | 251,991 MCF | May 2010 - Dec 2025 | 12 |
| ELIZONDO 01 0 | Karnes County, TX | Nov 2025 | 59,749 BBLs | 292,331 MCF | Jul 2025 - Dec 2025 | 9 |
| ETHRIDGE UNIT | Atascosa County, TX | Nov 2025 | 6,747 BBLs | 16,448 MCF | Sep 2011 - Dec 2025 | 6 |
| FORISTER 541 | Karnes County, TX | Nov 2025 | 13,519 BBLs | 18,802 MCF | Dec 2011 - Dec 2025 | 12 |
| FRANK MALEK 0 | Live Oak County, TX | Nov 2025 | 6,801 BBLs | 151,295 MCF | Sep 2012 - Dec 2025 | 19 |
| FRANKE UNIT | Karnes County, TX | Nov 2025 | 15,337 BBLs | 69,899 MCF | Dec 2010 - Dec 2025 | 24 |
| FRANKE-JOHNSON | Karnes County, TX | Nov 2025 | 7,892 BBLs | 113,341 MCF | Jun 2012 - Dec 2025 | 17 |
| FRANKE-MAY UNIT | Karnes County, TX | Nov 2025 | 8,528 BBLs | 7,388 MCF | Dec 2013 - Dec 2025 | 12 |
| FRANSEN UNIT | Karnes County, TX | Nov 2025 | 16,627 BBLs | 40,912 MCF | Aug 2025 - Dec 2025 | 7 |
| FRANSEN-DIRECT ASSETS SA | Karnes County, TX | Nov 2025 | 23,782 BBLs | 53,672 MCF | Aug 2025 - Dec 2025 | 2 |
| GUAJILLO | Live Oak County, TX | Nov 2025 | 27,409 BBLs | 54,429 MCF | Jun 2014 - Dec 2025 | 55 |
| GUAJILLO UNIT | Atascosa County, TX | Nov 2025 | 27,839 BBLs | 32,617 MCF | Jan 2015 - Dec 2025 | 71 |
| HARTMAN-RIPPSTEIN MIKKELSON SA1 | Karnes County, TX | Nov 2025 | 6,768 BBLs | 11,027 MCF | Aug 2024 - Dec 2025 | 1 |
| HAVEMAN | Karnes County, TX | Nov 2025 | 5,420 BBLs | 95,818 MCF | Dec 2010 - Dec 2025 | 14 |
| HEMBY UNIT | Karnes County, TX | Nov 2025 | 6,112 BBLs | 40,615 MCF | Aug 2012 - Dec 2025 | 19 |
| HIERHOLZER | Atascosa County, TX | Nov 2025 | 7,567 BBLs | 8,498 MCF | Nov 2010 - Dec 2025 | 2 |
| HIERHOLZER RETZLOFF | Atascosa County, TX | Nov 2025 | 46,750 BBLs | 83,492 MCF | Jun 2011 - Dec 2025 | 4 |
| HOLLMAN | Karnes County, TX | Nov 2025 | 6,266 BBLs | 36,734 MCF | Mar 2011 - Dec 2025 | 22 |
| HONS RAFTER UNIT | Karnes County, TX | Nov 2025 | 7,942 BBLs | 9,077 MCF | Jun 2013 - Dec 2025 | 5 |
| HOPE-BRUNS SA1 1H | DeWitt County, TX | Nov 2025 | 6,490 BBLs | 54,596 MCF | Jun 2024 - Dec 2025 | 1 |
| IVAS SMITH 0 | Live Oak County, TX | Nov 2025 | 5,841 BBLs | 39,119 MCF | Sep 2012 - Dec 2025 | 10 |
| JANSSEN - OETKEN 01 | Karnes County, TX | Nov 2025 | 5,144 BBLs | 65,845 MCF | Apr 2023 - Dec 2025 | 5 |
| JOHNSON-TSCHIRHART UNIT | Karnes County, TX | Nov 2025 | 60,108 BBLs | 492,461 MCF | Oct 2025 - Dec 2025 | 6 |
| JULIE BECK | Live Oak County, TX | Nov 2025 | 8,534 BBLs | 38,401 MCF | Nov 2010 - Dec 2025 | 17 |
| KARNES CITY N | Karnes County, TX | Nov 2025 | 8,983 BBLs | 10,811 MCF | Apr 2014 - Dec 2025 | 13 |
| KELLNER-JONAS | Live Oak County, TX | Nov 2025 | 15,167 BBLs | 33,508 MCF | Jun 2011 - Dec 2025 | 8 |
| KIRK 01 | Karnes County, TX | Nov 2025 | 28,171 BBLs | 282,000 MCF | Apr 2011 - Dec 2025 | 14 |
| KIRK-LONG SA | Karnes County, TX | Nov 2025 | 10,789 BBLs | 90,146 MCF | Feb 2025 - Dec 2025 | 2 |
| KOOPMAN | DeWitt County, TX | Nov 2025 | 18,551 BBLs | 231,870 MCF | Jun 2011 - Dec 2025 | 7 |
| L.B. HAILEY | Karnes County, TX | Nov 2025 | 5,664 BBLs | 36,863 MCF | Jun 2013 - Dec 2025 | 4 |
| L.B. HAILEY-DAVILA | Karnes County, TX | Nov 2025 | 8,477 BBLs | 71,719 MCF | Apr 2024 - Dec 2025 | 2 |
| LESKE-JUDD-MOTL SA D | DeWitt County, TX | Nov 2025 | 5,601 BBLs | 34,992 MCF | Oct 2024 - Dec 2025 | 1 |
| LESKE-MOTL SA | DeWitt County, TX | Nov 2025 | 15,330 BBLs | 113,145 MCF | Oct 2024 - Dec 2025 | 3 |
| LIVE OAK PARTNERS 0 | Live Oak County, TX | Nov 2025 | 4,354 BBLs | 56,426 MCF | May 2013 - Dec 2025 | 6 |
| LUNA UNIT | Karnes County, TX | Nov 2025 | 6,433 BBLs | 17,256 MCF | Nov 2010 - Dec 2025 | 20 |
| MAUCH TOM KRUEGER | Atascosa County, TX | Nov 2025 | 7,069 BBLs | 15,089 MCF | Apr 2023 - Dec 2025 | 2 |
| MAURER-MCFARLAND UNIT | Karnes County, TX | Nov 2025 | 7,240 BBLs | 22,171 MCF | Dec 2012 - Dec 2025 | 7 |
| MAY UNIT 1 | Karnes County, TX | Nov 2025 | 8,234 BBLs | 37,545 MCF | Nov 2010 - Dec 2025 | 14 |
| MAY-RYAN ABC-ATLAS SA | Karnes County, TX | Nov 2025 | 7,003 BBLs | 9,388 MCF | Feb 2024 - Dec 2025 | 1 |
| MAY-RYAN UNIT | Karnes County, TX | Nov 2025 | 11,392 BBLs | 13,062 MCF | Feb 2012 - Dec 2025 | 11 |
| MCCOY EGBERT | Karnes County, TX | Nov 2025 | 9,095 BBLs | 15,496 MCF | Jan 2013 - Dec 2025 | 7 |
| MCS FOUNDATION | Atascosa County, TX | Nov 2025 | 49,407 BBLs | 58,558 MCF | Jul 2025 - Dec 2025 | 4 |
| MEDINA-HOFFMAN | Karnes County, TX | Nov 2025 | 7,924 BBLs | 10,414 MCF | Apr 2012 - Dec 2025 | 7 |
| MEDINA-JONAS | Karnes County, TX | Nov 2025 | 14,525 BBLs | 18,462 MCF | Feb 2012 - Dec 2025 | 18 |
| MILLER RIDOUT | Karnes County, TX | Nov 2025 | 36,795 BBLs | 50,094 MCF | Sep 2025 - Dec 2025 | 8 |
| MOBIL UNIT | Karnes County, TX | Nov 2025 | 8,213 BBLs | 45,261 MCF | Nov 2012 - Dec 2025 | 32 |
| MOCZYGEMBA | Karnes County, TX | Nov 2025 | 8,880 BBLs | 38,669 MCF | Oct 2013 - Dec 2025 | 7 |
| MOHR-HONS UNIT | Karnes County, TX | Nov 2025 | 8,153 BBLs | 10,033 MCF | May 2012 - Dec 2025 | 8 |
| OLSON ESSE-KENNEDY SA | Karnes County, TX | Nov 2025 | 6,054 BBLs | 88,934 MCF | May 2024 - Dec 2025 | 2 |
| OLSON-ESSE UNIT | Karnes County, TX | Nov 2025 | 5,125 BBLs | 94,975 MCF | May 2012 - Dec 2025 | 4 |
| PATINO UNIT | Karnes County, TX | Nov 2025 | 12,704 BBLs | 162,955 MCF | Oct 2010 - Dec 2025 | 3 |
| PATINO-FRANKE UNIT SA1 1H | Karnes County, TX | Nov 2025 | 12,234 BBLs | 115,253 MCF | Feb 2025 - Dec 2025 | 1 |
| PFEIFER-SCHEELE HUTH UNIT A SA | Karnes County, TX | Nov 2025 | 15,379 BBLs | 31,979 MCF | Jan 2025 - Dec 2025 | 4 |
| R MAY A-MAY GIRLS CHAPMAN SA2 | Atascosa County, TX | Nov 2025 | 13,824 BBLs | 19,351 MCF | Jun 2025 - Dec 2025 | 1 |
| R MAY A-SCHROEDER CHAPMAN SA1 | Atascosa County, TX | Nov 2025 | 15,924 BBLs | 18,774 MCF | Jun 2025 - Dec 2025 | 1 |
| R. MAY | Atascosa County, TX | Nov 2025 | 15,735 BBLs | 12,810 MCF | Jun 2012 - Dec 2025 | 42 |
| RANCHO GRANDE TRUST | Karnes County, TX | Nov 2025 | 7,824 BBLs | 29,755 MCF | Jun 2010 - Dec 2025 | 13 |
| RETZLOFF-MAY | Atascosa County, TX | Nov 2025 | 8,888 BBLs | 9,419 MCF | Oct 2011 - Dec 2025 | 2 |
| REYNOLDS | Karnes County, TX | Nov 2025 | 35,649 BBLs | 121,548 MCF | May 2011 - Dec 2025 | 17 |
| RIDLEY | Karnes County, TX | Nov 2025 | 62,163 BBLs | 315,105 MCF | Jul 2011 - Dec 2025 | 30 |
| RIPPSTEIN-GOTTHARDT UNIT | Karnes County, TX | Nov 2025 | 7,110 BBLs | 5,456 MCF | Feb 2012 - Dec 2025 | 10 |
| RIPPSTEIN-HONS RAFTER SA | Karnes County, TX | Nov 2025 | 20,439 BBLs | 40,740 MCF | Aug 2024 - Dec 2025 | 2 |
| SAN CHRISTOVAL | Live Oak County, TX | Nov 2025 | 165,992 BBLs | 721,923 MCF | Sep 2011 - Dec 2025 | 70 |
| SCHENDEL | Karnes County, TX | Nov 2025 | 15,898 BBLs | 103,025 MCF | Oct 2010 - Dec 2025 | 27 |
| SIENKIEWICZ UNIT | Karnes County, TX | Nov 2025 | 6,341 BBLs | 17,590 MCF | Nov 2012 - Dec 2025 | 13 |
| STEWART-GIESE | Atascosa County, TX | Nov 2025 | 21,912 BBLs | 40,935 MCF | Nov 2011 - Dec 2025 | 4 |
| STRAUBE 01 | DeWitt County, TX | Nov 2025 | 4,700 BBLs | 84,632 MCF | Apr 2011 - Dec 2025 | 11 |
| SWIZE MCFARLAND UNIT | Karnes County, TX | Nov 2025 | 9,095 BBLs | 16,791 MCF | Dec 2012 - Dec 2025 | 5 |
| TIPTON-JONAS UNIT | Karnes County, TX | Nov 2025 | 9,032 BBLs | 15,666 MCF | May 2012 - Dec 2025 | 7 |
| TOM-SMITH UNIT | Atascosa County, TX | Nov 2025 | 17,370 BBLs | 10,434 MCF | May 2021 - Dec 2025 | 12 |
| TURNBULL | Karnes County, TX | Nov 2025 | 32,234 BBLs | 90,515 MCF | Jun 2010 - Dec 2025 | 51 |
| WARNER | Karnes County, TX | Nov 2025 | 9,636 BBLs | 50,161 MCF | Apr 2012 - Dec 2025 | 15 |
| WESSENDORFF | Karnes County, TX | Nov 2025 | 18,262 BBLs | 211,633 MCF | Apr 2006 - Dec 2025 | 29 |
| WINGNUT UNIT | Karnes County, TX | Nov 2025 | 9,904 BBLs | 14,754 MCF | Jan 2013 - Dec 2025 | 18 |
| Well Name | County | API # | Submitted | Approved | Type | Drill | Well | Status | Proposed Depth |
|---|---|---|---|---|---|---|---|---|---|
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These are the contact records we have for Marathon Oil Ef LLC. They are obtained from the state and county goverment agency where we obtain our data.
| Address | Phone # |
|---|---|
| 990 TOWN AND COUNTRY BLVD, HOUSTON, TX 77024-2217 | |
| PO BOX 2197 REGULATORY DEPT HOUSTON, TX 77252 | (832) 486-2737 |