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 - Nov 2025 |
| Total Oil Production | 541,988,588 BBLs |
| Total Gas Production | 1,639,342,522 MCF |
| Estimated Daily Oil Prod. | 100,170 BBLs |
| Estimated Daily Gas Prod. | 355,121 MCF |
| Estimated Daily Water Prod. | 165,182 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 | |||
| 42-177-34702 | BARNHART (EF) 113H | PRODUCING | Gonzales County, TX | 29.302105 | -97.506778 | |||
| 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 | |||
| 42-255-38154 | DAVIS-ALEXANDER SA1 1H | Horizontal Well Surface Locatio | Karnes County, TX | 28.864128 | -97.835370 | |||
| 42-255-38153 | DAVIS-MENSIK SA1 1H | Horizontal Well Surface Locatio | Karnes County, TX | 28.864141 | -97.835475 | |||
| 42-255-38052 | DEMING-DEBILL SA1 1H | PRODUCING | Karnes County, TX | 28.894698 | -97.696846 | |||
| 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 | |||
| 42-123-35377 | HOPE-BRUNS SA1 1H | PRODUCING | DeWitt County, TX | 29.005050 | -97.594096 | |||
| 42-255-38104 | KIRK 01 06H | PRODUCING | Karnes County, TX | 28.916280 | -97.689907 | |||
| 42-255-38105 | KIRK 01 503H | PRODUCING | Karnes County, TX | 28.916265 | -97.689983 | |||
| 42-255-38106 | KIRK-LONG SA1 1H | PRODUCING | Karnes County, TX | 28.916233 | -97.690134 | |||
| 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 | |||
| 42-013-36222 | 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 | |||
| 42-013-36094 | MIDDLE MCCOWEN 103H | PRODUCING | Atascosa County, TX | 28.663338 | -98.374259 | |||
| 42-013-36095 | MIDDLE MCCOWEN 105H | PRODUCING | Atascosa County, TX | 28.664218 | -98.373024 | |||
| 42-013-36215 | MIDDLE MCCOWEN 133HR | PRODUCING | Atascosa County, TX | 28.692466 | -98.365442 | |||
| 42-013-36190 | MIDDLE MCCOWEN 136H | PRODUCING | Atascosa County, TX | 28.688604 | -98.354365 | |||
| 42-013-36196 | MIDDLE MCCOWEN 137H | PRODUCING | Atascosa County, TX | 28.689084 | -98.353921 | |||
| 42-013-36189 | MIDDLE MCCOWEN 138H | PRODUCING | Atascosa County, TX | 28.689137 | -98.353871 | |||
| 42-013-36188 | MIDDLE MCCOWEN 139H | PRODUCING | Atascosa County, TX | 28.689190 | -98.353821 | |||
| 42-013-36197 | MIDDLE MCCOWEN 191H | PRODUCING | Atascosa County, TX | 28.692331 | -98.365617 | |||
| 42-013-36198 | MIDDLE MCCOWEN 192H | PRODUCING | Atascosa County, TX | 28.692375 | -98.365558 | |||
| 42-013-36193 | MIDDLE MCCOWEN 194H | PRODUCING | Atascosa County, TX | 28.688658 | -98.354315 | |||
| 42-013-36192 | MIDDLE MCCOWEN 195H | PRODUCING | Atascosa County, TX | 28.688713 | -98.354268 | |||
| 42-013-36191 | MIDDLE MCCOWEN 196H | PRODUCING | Atascosa County, TX | 28.688765 | -98.354217 | |||
| 42-013-36194 | MIDDLE MCCOWEN 197H | PRODUCING | Atascosa County, TX | 28.689351 | -98.353673 | |||
| 42-013-36091 | MIDDLE MCCOWEN 257H | PRODUCING | Atascosa County, TX | 28.663385 | -98.374169 | |||
| 42-013-36092 | MIDDLE MCCOWEN 259H | PRODUCING | Atascosa County, TX | 28.663434 | -98.374105 | |||
| 42-013-36093 | MIDDLE MCCOWEN 260H | PRODUCING | Atascosa County, TX | 28.663301 | -98.374293 | |||
| 42-013-36096 | MIDDLE MCCOWEN 274H | PRODUCING | Atascosa County, TX | 28.664259 | -98.372963 | |||
| 42-255-38061 | PATINO UNIT 5H | PRODUCING | Karnes County, TX | 28.777378 | -97.912797 | |||
| 42-255-38060 | PATINO UNIT 9H | PRODUCING | Karnes County, TX | 28.777329 | -97.912850 | |||
| 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 | |||
| 42-013-36203 | R. MAY A 13H | PRODUCING | Atascosa County, TX | 28.713661 | -98.240560 | |||
| 42-255-38077 | REYNOLDS GAS UNIT 2 2H | SHUT IN | 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 | Horizontal Well Surface Locatio | Karnes County, TX | 28.893355 | -97.774491 | |||
| 42-255-38120 | RIDLEY 01 13H | Horizontal Well Surface Locatio | Karnes County, TX | 28.893321 | -97.774397 | |||
| 42-255-38121 | RIDLEY 01 16H | Horizontal Well Surface Locatio | 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 | |||
| 42-013-36085 | STEWART GIESE HENKE SA2 2H | PRODUCING | Atascosa County, TX | 28.762502 | -98.153551 | |||
| 42-013-36087 | STEWART GIESE HENKE SA4 4H | PRODUCING | Atascosa County, TX | 28.762591 | -98.153434 |
| 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 | ||
| 01-20450 | 74 RANCH UNIT S1 | Atascosa County, TX | ||
| 01-20617 | 74 RANCH UNIT S2 | Atascosa County, TX | ||
| 01-20608 | 74 RANCH UNIT S3 | Atascosa County, TX | ||
| 01-20637 | 74 RANCH-GUAJILLO UNIT C | Atascosa County, TX | ||
| 01-15397 | BARNHART (EF) | Gonzales County, TX | ||
| 01-16813 | BARNHART (EF) H | Gonzales County, TX | ||
| 01-21670 | BARNHART (EF) H UNIT SA3 | Gonzales County, TX | ||
| 01-21712 | BARNHART (EF)-J.M. PRESTON SA1 | Gonzales County, TX | ||
| 02-12875 | BEAM MEYER-TINA BUTLER SA1 | Karnes County, TX | ||
| 02-12842 | BRYSCH ADAMS-BRYSCH JONAS C SA1 | Karnes County, TX | ||
| 01-21200 | DEATLEY GRIFFIN MAY SA2 | Atascosa County, TX | ||
| 02-298251 | DEMING-DEBILL SA1 1H | Karnes County, TX | ||
| 02-12918 | DEMING-HERBERN SA1 | 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 | ||
| 02-298042 | HOPE-BRUNS SA1 1H | DeWitt County, TX | ||
| 02-10590 | JAUER-SONKA UNIT | Karnes County, TX | ||
| 02-09944 | JULIE BECK | Karnes County, TX | ||
| 02-299071 | KIRK 01 06H | Karnes County, TX | ||
| 02-299058 | KIRK 01 503H | Karnes County, TX | ||
| 02-299069 | KIRK-LONG SA1 1H | Karnes County, TX | ||
| 02-299268 | KIRK-LONG SA2 2H | 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 | ||
| 02-10068 | MAY-RYAN UNIT C | Karnes County, TX | ||
| 02-10387 | MCCOY-EGBERT UNIT | Karnes 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 | ||
| 02-296666 | OLSON ESSE-KENNEDY SA2 2H | 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 | ||
| 01-16361 | R. MAY B | Atascosa County, TX | ||
| 02-10222 | REYNOLDS GAS UNIT 2 | Karnes County, TX | ||
| 02-11355 | RIDLEY 01 | 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 | ||
| 01-21617 | STEWART GIESE HENKE SA3 | Atascosa County, TX | ||
| 01-21658 | STEWART GIESE HENKE SA4 | Atascosa County, TX | ||
| 02-11430 | THREE SISTERS 01 | Live Oak 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 |
| ANZALDUA OXFORD | Karnes County, TX | Jul 2025 | 8,087 BBLs | 11,539 MCF | Aug 2013 - Aug 2025 | 6 |
| BAILEY-RETZLOFF UNIT | Karnes County, TX | Jul 2025 | 6,599 BBLs | 45,771 MCF | Oct 2012 - Aug 2025 | 20 |
| BARBOZA UNIT | Karnes County, TX | Jul 2025 | 8,554 BBLs | 68,577 MCF | Apr 2011 - Aug 2025 | 15 |
| BARNHART | Gonzales County, TX | Jul 2025 | 181,418 BBLs | 255,617 MCF | Jul 2010 - Aug 2025 | 120 |
| BARNHART (EF) H UNIT SA | Gonzales County, TX | Jul 2025 | 15,060 BBLs | 15,354 MCF | Aug 2023 - Aug 2025 | 2 |
| BARNHART (EF)-J.M. PRESTON SA | Gonzales County, TX | Jul 2025 | 24,716 BBLs | 19,987 MCF | Oct 2023 - Aug 2025 | 5 |
| BEAM MEYER-RICHARD BUTLER B SA | Karnes County, TX | Jul 2025 | 20,163 BBLs | 48,624 MCF | Aug 2024 - Aug 2025 | 3 |
| BEAM MEYER-TINA BUTLER SA1 | Karnes County, TX | Jul 2025 | 9,500 BBLs | 20,695 MCF | Aug 2024 - Aug 2025 | 1 |
| BEAM-MEYER | Karnes County, TX | Jul 2025 | 8,839 BBLs | 17,949 MCF | Dec 2011 - Aug 2025 | 2 |
| BERGEY FLETCHER SA | Gonzales County, TX | Jul 2025 | 8,330 BBLs | 16,411 MCF | Jul 2024 - Aug 2025 | 2 |
| BRYSCH ADAMS-BRYSCH JONAS | Karnes County, TX | Jul 2025 | 12,353 BBLs | 35,828 MCF | Sep 2022 - Aug 2025 | 2 |
| CHALLENGER | Karnes County, TX | Jul 2025 | 23,629 BBLs | 50,332 MCF | Feb 2013 - Aug 2025 | 39 |
| CHAPMAN HUMMEL | Karnes County, TX | Jul 2025 | 10,948 BBLs | 21,866 MCF | Oct 2012 - Aug 2025 | 5 |
| COY CITY RANCH | Karnes County, TX | Jul 2025 | 12,209 BBLs | 37,073 MCF | May 2011 - Aug 2025 | 18 |
| DAVILA UNIT | Karnes County, TX | Jul 2025 | 7,460 BBLs | 68,116 MCF | Jul 2012 - Aug 2025 | 20 |
| DAVILA-GRAHAM | Karnes County, TX | Jul 2025 | 7,509 BBLs | 49,489 MCF | Sep 2012 - Aug 2025 | 10 |
| DAVIS | Karnes County, TX | Jul 2025 | 14,246 BBLs | 85,863 MCF | Jan 2011 - Aug 2025 | 14 |
| DAVIS-ALEXANDER SA1 1H | Karnes County, TX | Jul 2025 | 32,743 BBLs | 148,049 MCF | Apr 2025 - Aug 2025 | 1 |
| DAVIS-MENSIK SA1 1H | Karnes County, TX | Jul 2025 | 34,919 BBLs | 143,572 MCF | Apr 2025 - Aug 2025 | 1 |
| DEATLEY HOLLUB | Atascosa County, TX | Jul 2025 | 10,178 BBLs | 10,949 MCF | Nov 2011 - Aug 2025 | 9 |
| DEATLEY-GRIFFIN | Atascosa County, TX | Jul 2025 | 28,825 BBLs | 62,727 MCF | Nov 2011 - Aug 2025 | 5 |
| DEMING-DEBILL SA1 1H | Karnes County, TX | Jul 2025 | 10,042 BBLs | 116,446 MCF | Sep 2024 - Aug 2025 | 1 |
| DEMING-HERBERN SA1 | Karnes County, TX | Jul 2025 | 6,517 BBLs | 81,285 MCF | Sep 2024 - Aug 2025 | 1 |
| DEMING-LONG SA1 1H | Karnes County, TX | Jul 2025 | 6,458 BBLs | 59,867 MCF | Sep 2024 - Aug 2025 | 1 |
| DULLYE 01 | Karnes County, TX | Jul 2025 | 17,508 BBLs | 189,086 MCF | Nov 2010 - Aug 2025 | 8 |
| EASLEY UNIT | Karnes County, TX | Jul 2025 | 18,577 BBLs | 323,934 MCF | May 2010 - Aug 2025 | 11 |
| ELIZONDO 01 0 | Karnes County, TX | Jul 2025 | 11,028 BBLs | 35,994 MCF | Jul 2025 - Aug 2025 | 9 |
| ETHRIDGE UNIT | Atascosa County, TX | Jul 2025 | 8,129 BBLs | 17,924 MCF | Sep 2011 - Aug 2025 | 6 |
| FORISTER 541 | Karnes County, TX | Jul 2025 | 16,596 BBLs | 32,150 MCF | Dec 2011 - Aug 2025 | 12 |
| FRANK MALEK 0 | Live Oak County, TX | Jul 2025 | 16,152 BBLs | 283,067 MCF | Sep 2012 - Aug 2025 | 19 |
| FRANKE JOHNSON | Karnes County, TX | Jul 2025 | 4,989 BBLs | 77,632 MCF | Jun 2012 - Aug 2025 | 16 |
| FRANKE UNIT | Karnes County, TX | Jul 2025 | 16,745 BBLs | 87,049 MCF | Dec 2010 - Aug 2025 | 24 |
| FRANKE-MAY UNIT | Karnes County, TX | Jul 2025 | 9,412 BBLs | 7,451 MCF | Dec 2013 - Aug 2025 | 12 |
| GUAJILLO | Live Oak County, TX | Jul 2025 | 41,037 BBLs | 79,479 MCF | Jun 2014 - Aug 2025 | 55 |
| GUAJILLO UNIT | Atascosa County, TX | Jul 2025 | 35,078 BBLs | 56,501 MCF | Jan 2015 - Aug 2025 | 71 |
| HARTMAN-RIPPSTEIN MIKKELSON SA1 | Karnes County, TX | Jul 2025 | 8,910 BBLs | 14,624 MCF | Aug 2024 - Aug 2025 | 1 |
| HAVEMAN | Karnes County, TX | Jul 2025 | 6,089 BBLs | 118,804 MCF | Dec 2010 - Aug 2025 | 14 |
| HEMBY UNIT | Karnes County, TX | Jul 2025 | 7,900 BBLs | 32,792 MCF | Aug 2012 - Aug 2025 | 17 |
| HIERHOLZER | Atascosa County, TX | Jul 2025 | 9,316 BBLs | 9,169 MCF | Nov 2010 - Aug 2025 | 3 |
| HIERHOLZER RETZLOFF | Atascosa County, TX | Jul 2025 | 68,671 BBLs | 89,313 MCF | Jun 2011 - Aug 2025 | 4 |
| HIERHOLZER SEEWALD | Atascosa County, TX | Jul 2025 | 9,397 BBLs | 8,560 MCF | Jun 2011 - Aug 2025 | 3 |
| HOLLAND OPIELA | Karnes County, TX | Jul 2025 | 8,116 BBLs | 13,646 MCF | Dec 2011 - Aug 2025 | 6 |
| HOLLMAN | Karnes County, TX | Jul 2025 | 6,844 BBLs | 55,331 MCF | Mar 2011 - Aug 2025 | 22 |
| HONS RAFTER UNIT | Karnes County, TX | Jul 2025 | 8,671 BBLs | 8,657 MCF | Jun 2013 - Aug 2025 | 5 |
| HOPE-BRUNS SA1 1H | DeWitt County, TX | Jul 2025 | 10,480 BBLs | 67,249 MCF | Jun 2024 - Aug 2025 | 1 |
| IVAS SMITH 0 | Live Oak County, TX | Jul 2025 | 6,574 BBLs | 48,584 MCF | Sep 2012 - Aug 2025 | 10 |
| JANSSEN - OETKEN 01 | Karnes County, TX | Jul 2025 | 5,290 BBLs | 89,513 MCF | Apr 2023 - Aug 2025 | 5 |
| JAUER-SONKA UNIT | Karnes County, TX | Jul 2025 | 10,137 BBLs | 6,783 MCF | Jul 2013 - Aug 2025 | 9 |
| JULIE BECK | Live Oak County, TX | Jul 2025 | 9,684 BBLs | 54,568 MCF | Nov 2010 - Aug 2025 | 17 |
| KARNES CITY | Karnes County, TX | Jul 2025 | 10,026 BBLs | 12,744 MCF | Dec 2013 - Aug 2025 | 15 |
| KARNES CITY N | Karnes County, TX | Jul 2025 | 10,799 BBLs | 17,125 MCF | Apr 2014 - Aug 2025 | 13 |
| KELLNER-JONAS | Live Oak County, TX | Jul 2025 | 18,011 BBLs | 41,446 MCF | Jun 2011 - Aug 2025 | 8 |
| KIRK 01 | Karnes County, TX | Jul 2025 | 47,367 BBLs | 470,596 MCF | Apr 2011 - Aug 2025 | 14 |
| KIRK-LONG SA | Karnes County, TX | Jul 2025 | 20,740 BBLs | 175,214 MCF | Feb 2025 - Aug 2025 | 2 |
| KOOPMAN | DeWitt County, TX | Jul 2025 | 24,165 BBLs | 288,021 MCF | Jun 2011 - Aug 2025 | 7 |
| L.B. HAILEY | Karnes County, TX | Jul 2025 | 8,103 BBLs | 42,451 MCF | Jun 2013 - Aug 2025 | 4 |
| L.B. HAILEY-DAVILA | Karnes County, TX | Jul 2025 | 12,223 BBLs | 74,362 MCF | Apr 2024 - Aug 2025 | 2 |
| LESKE-MOTL SA | DeWitt County, TX | Jul 2025 | 15,126 BBLs | 92,756 MCF | Oct 2024 - Aug 2025 | 3 |
| LIVE OAK PARTNERS 0 | Live Oak County, TX | Jul 2025 | 6,838 BBLs | 67,949 MCF | May 2013 - Aug 2025 | 6 |
| MANGIONE 01 | Karnes County, TX | Jul 2025 | 7,810 BBLs | 36,853 MCF | May 2012 - Aug 2025 | 15 |
| MAUCH TOM KRUEGER | Atascosa County, TX | Jul 2025 | 8,481 BBLs | 14,309 MCF | Apr 2023 - Aug 2025 | 2 |
| MAURER-MCFARLAND UNIT | Karnes County, TX | Jul 2025 | 9,321 BBLs | 23,220 MCF | Dec 2012 - Aug 2025 | 7 |
| MAY B UNIT | Karnes County, TX | Jul 2025 | 8,994 BBLs | 56,306 MCF | Dec 2012 - Aug 2025 | 24 |
| MAY-RYAN ABC-ATLAS SA | Karnes County, TX | Jul 2025 | 8,228 BBLs | 11,817 MCF | Feb 2024 - Aug 2025 | 1 |
| MAY-RYAN UNIT | Karnes County, TX | Jul 2025 | 20,316 BBLs | 26,550 MCF | Feb 2012 - Aug 2025 | 11 |
| MCCOY EGBERT | Karnes County, TX | Jul 2025 | 12,205 BBLs | 25,999 MCF | Jan 2013 - Aug 2025 | 7 |
| MCS FOUNDATION | Atascosa County, TX | Jul 2025 | 63,873 BBLs | 46,335 MCF | Jul 2025 - Aug 2025 | 4 |
| MEDINA-HOFFMAN | Karnes County, TX | Jul 2025 | 10,208 BBLs | 17,949 MCF | Apr 2012 - Aug 2025 | 7 |
| MEDINA-JONAS | Karnes County, TX | Jul 2025 | 14,115 BBLs | 18,151 MCF | Feb 2012 - Aug 2025 | 18 |
| MIKKELSON-WITTE | Karnes County, TX | Jul 2025 | 7,773 BBLs | 11,483 MCF | Mar 2012 - Aug 2025 | 7 |
| MOBIL UNIT | Karnes County, TX | Jul 2025 | 9,393 BBLs | 46,093 MCF | Nov 2012 - Aug 2025 | 31 |
| MOCZYGEMBA | Karnes County, TX | Jul 2025 | 8,586 BBLs | 27,190 MCF | Oct 2013 - Aug 2025 | 7 |
| MOHR-HONS UNIT | Karnes County, TX | Jul 2025 | 8,827 BBLs | 10,805 MCF | May 2012 - Aug 2025 | 8 |
| MURPHY-SINCLAIR UNIT | Karnes County, TX | Jul 2025 | 7,505 BBLs | 31,699 MCF | Oct 2012 - Aug 2025 | 14 |
| OLSON ESSE-KENNEDY SA | Karnes County, TX | Jul 2025 | 9,855 BBLs | 149,744 MCF | May 2024 - Aug 2025 | 2 |
| OLSON-ESSE UNIT | Karnes County, TX | Jul 2025 | 5,545 BBLs | 112,142 MCF | May 2012 - Aug 2025 | 4 |
| PATINO UNIT | Karnes County, TX | Jul 2025 | 25,624 BBLs | 274,026 MCF | Oct 2010 - Aug 2025 | 3 |
| PATINO-FRANKE UNIT SA1 1H | Karnes County, TX | Jul 2025 | 19,521 BBLs | 166,585 MCF | Feb 2025 - Aug 2025 | 1 |
| PFEIFER-SCHEELE HUTH UNIT A SA | Karnes County, TX | Jul 2025 | 26,729 BBLs | 64,476 MCF | Jan 2025 - Aug 2025 | 4 |
| R MAY A-MAY GIRLS CHAPMAN SA2 | Atascosa County, TX | Jul 2025 | 35,902 BBLs | 31,976 MCF | Jun 2025 - Aug 2025 | 1 |
| R MAY A-SCHROEDER CHAPMAN SA1 | Atascosa County, TX | Jul 2025 | 39,429 BBLs | 36,585 MCF | Jun 2025 - Aug 2025 | 1 |
| R. MAY | Atascosa County, TX | Jul 2025 | 37,006 BBLs | 35,632 MCF | Jun 2012 - Aug 2025 | 42 |
| RANCHO GRANDE TRUST | Karnes County, TX | Jul 2025 | 8,745 BBLs | 39,163 MCF | Jun 2010 - Aug 2025 | 13 |
| REYNOLDS | Karnes County, TX | Jul 2025 | 41,157 BBLs | 127,469 MCF | May 2011 - Aug 2025 | 17 |
| RIDLEY | Karnes County, TX | Jul 2025 | 116,333 BBLs | 294,481 MCF | Jun 2025 - Aug 2025 | 30 |
| RIPPSTEIN-GOTTHARDT UNIT | Karnes County, TX | Jul 2025 | 8,580 BBLs | 6,323 MCF | Feb 2012 - Aug 2025 | 10 |
| RIPPSTEIN-HONS RAFTER SA | Karnes County, TX | Jul 2025 | 29,043 BBLs | 52,555 MCF | Aug 2024 - Aug 2025 | 2 |
| SAN CHRISTOVAL | Live Oak County, TX | Jul 2025 | 234,578 BBLs | 951,413 MCF | Sep 2011 - Aug 2025 | 68 |
| SCHENDEL | Karnes County, TX | Jul 2025 | 18,832 BBLs | 83,666 MCF | Oct 2010 - Aug 2025 | 27 |
| SCHENDEL-REYNOLDS SA1 1H | Karnes County, TX | Jul 2025 | 6,523 BBLs | 42,084 MCF | May 2024 - Aug 2025 | 1 |
| SMITH-MELLICK | Karnes County, TX | Jul 2025 | 9,588 BBLs | 20,121 MCF | Dec 2011 - Aug 2025 | 6 |
| STEWART-GIESE | Atascosa County, TX | Jul 2025 | 43,162 BBLs | 61,191 MCF | Nov 2011 - Aug 2025 | 4 |
| STRAUBE 01 | DeWitt County, TX | Jul 2025 | 5,551 BBLs | 101,322 MCF | Apr 2011 - Aug 2025 | 11 |
| TIPTON-JONAS UNIT | Karnes County, TX | Jul 2025 | 10,362 BBLs | 20,707 MCF | May 2012 - Aug 2025 | 7 |
| TOM-SMITH UNIT | Atascosa County, TX | Jul 2025 | 20,793 BBLs | 22,876 MCF | May 2021 - Aug 2025 | 12 |
| TURNBULL | Karnes County, TX | Jul 2025 | 34,437 BBLs | 118,679 MCF | Jun 2010 - Aug 2025 | 51 |
| WARNER | Karnes County, TX | Jul 2025 | 11,239 BBLs | 54,276 MCF | Apr 2012 - Aug 2025 | 15 |
| WESSENDORFF | Karnes County, TX | Jul 2025 | 19,592 BBLs | 261,687 MCF | Apr 2006 - Aug 2025 | 28 |
| WHITLEY-SCHEELE HUTH UNIT A SA1 | Karnes County, TX | Jul 2025 | 8,945 BBLs | 17,916 MCF | Jan 2025 - Aug 2025 | 1 |
| WINGNUT UNIT | Karnes County, TX | Jul 2025 | 11,693 BBLs | 23,954 MCF | Jan 2013 - Aug 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 ATTN TAX DEPAR HOUSTON, TX 77024 | (918) 925-6907 |
| 990 TOWN AND COUNTRY BLVD, HOUSTON, TX 77024-2217 | |
| PO BOX 2197 REGULATORY DEPT HOUSTON, TX 77252 | (832) 486-2737 |