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 - Dec 2025 |
| Total Oil Production | 546,817,676 BBLs |
| Total Gas Production | 1,658,226,602 MCF |
| Estimated Daily Oil Prod. | 89,340 BBLs |
| Estimated Daily Gas Prod. | 324,747 MCF |
| Estimated Daily Water Prod. | 162,499 BBLs |
| Producing Wells | 2,424 |
| 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 |
| 42-255-38164 | 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 | 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 | |||
| 42-255-37996 | DEBILL-LISKA SA1 1H | PRODUCING | Karnes County, TX | 28.916060 | -97.718316 | |||
| 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 | |||
| 42-255-38106 | 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 | |||
| 42-255-37855 | L.B. HAILEY-DAVILA-BAILEY SA 1H | PRODUCING | Karnes County, TX | 28.797005 | -98.007543 | |||
| 42-123-35390 | LESKE-MOTL SA C 3H | PRODUCING | DeWitt County, TX | 29.159498 | -97.408281 | |||
| 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 | |||
| 42-013-36094 | 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 | |||
| 42-013-36191 | MIDDLE MCCOWEN 196H | PRODUCING | Atascosa County, TX | 28.688765 | -98.354217 | |||
| 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 | |||
| 42-255-38261 | MILLER RIDOUT MIKKELSON SA1 1H | Horizontal Well Surface Locatio | Karnes County, TX | 28.870405 | -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 | 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 | |||
| 42-013-36087 | 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 | ||
| 01-20608 | 74 RANCH UNIT S3 | 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 | ||
| 02-13128 | BARNHART (EF)-HFS SA1 | 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 | ||
| 01-21225 | BARNHART (EF)-J.M. PRESTON SA5 | Gonzales County, TX | ||
| 02-13129 | BARNHART (EF)-J.M. PRESTON SA6 | Gonzales County, TX | ||
| 02-12875 | BEAM MEYER-TINA BUTLER SA1 | 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 | ||
| 02-299071 | KIRK 01 06H | Karnes County, TX | ||
| 02-299058 | KIRK 01 503H | Karnes County, TX | ||
| 02-299069 | KIRK-LONG SA1 1H | Karnes County, TX | ||
| 02-296667 | 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 | ||
| 02-296240 | L.B. HAILEY-DAVILA-BAILEY SA 1H | Karnes County, TX | ||
| 02-298538 | LESKE-JUDD-MOTL SA D 4H | DeWitt County, TX | ||
| 02-298540 | LESKE-MOTL SA B 2H | 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 | ||
| 02-296666 | 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 | ||
| 01-21496 | 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 | Sep 2025 | 5,625 BBLs | 37,127 MCF | Oct 2012 - Oct 2025 | 21 |
| BARBOZA UNIT | Karnes County, TX | Sep 2025 | 7,201 BBLs | 54,558 MCF | Apr 2011 - Oct 2025 | 16 |
| BARNHART | Gonzales County, TX | Sep 2025 | 12,456 BBLs | 6,419 MCF | Sep 2025 - Oct 2025 | 121 |
| BARNHART (EF) H UNIT SA | Gonzales County, TX | Sep 2025 | 9,672 BBLs | 11,161 MCF | Aug 2023 - Oct 2025 | 2 |
| BARNHART (EF)-J.M. PRESTON SA | Gonzales County, TX | Sep 2025 | 60,248 BBLs | 36,274 MCF | Oct 2023 - Oct 2025 | 5 |
| BEAM MEYER-RICHARD BUTLER B SA | Karnes County, TX | Sep 2025 | 16,799 BBLs | 34,408 MCF | Aug 2024 - Oct 2025 | 3 |
| BEAM MEYER-TINA BUTLER SA1 | Karnes County, TX | Sep 2025 | 8,471 BBLs | 19,166 MCF | Aug 2024 - Oct 2025 | 1 |
| BEAM-MEYER | Karnes County, TX | Sep 2025 | 7,398 BBLs | 13,377 MCF | Dec 2011 - Oct 2025 | 2 |
| BERGEY FLETCHER SA | Gonzales County, TX | Sep 2025 | 8,401 BBLs | 12,281 MCF | Jul 2024 - Oct 2025 | 2 |
| BEST BATEMAN | Karnes County, TX | Sep 2025 | 12,500 BBLs | 19,108 MCF | Aug 2025 - Oct 2025 | 8 |
| BEST FENNER | Karnes County, TX | Sep 2025 | 16,843 BBLs | 36,179 MCF | Aug 2025 - Oct 2025 | 9 |
| BRYSCH ADAMS-BRYSCH JONAS | Karnes County, TX | Sep 2025 | 10,145 BBLs | 26,225 MCF | Sep 2022 - Oct 2025 | 2 |
| CHALLENGER | Karnes County, TX | Sep 2025 | 22,915 BBLs | 57,186 MCF | Feb 2013 - Oct 2025 | 39 |
| CHAPMAN HUMMEL | Karnes County, TX | Sep 2025 | 10,312 BBLs | 16,101 MCF | Oct 2012 - Oct 2025 | 5 |
| COY CITY RANCH | Karnes County, TX | Sep 2025 | 6,896 BBLs | 22,851 MCF | May 2011 - Oct 2025 | 18 |
| DAVILA UNIT | Karnes County, TX | Sep 2025 | 6,398 BBLs | 47,594 MCF | Jul 2012 - Oct 2025 | 20 |
| DAVIS | Karnes County, TX | Sep 2025 | 9,256 BBLs | 63,784 MCF | Jan 2011 - Oct 2025 | 14 |
| DAVIS-ALEXANDER SA1 1H | Karnes County, TX | Sep 2025 | 28,490 BBLs | 131,776 MCF | Apr 2025 - Oct 2025 | 1 |
| DAVIS-MENSIK SA1 1H | Karnes County, TX | Sep 2025 | 29,354 BBLs | 126,830 MCF | Apr 2025 - Oct 2025 | 1 |
| DEATLEY HOLLUB | Atascosa County, TX | Sep 2025 | 8,088 BBLs | 6,203 MCF | Nov 2011 - Oct 2025 | 9 |
| DEATLEY-GRIFFIN | Atascosa County, TX | Sep 2025 | 23,674 BBLs | 38,743 MCF | Nov 2011 - Oct 2025 | 5 |
| DEBILL-LISKA SA1 1H | Karnes County, TX | Sep 2025 | 8,501 BBLs | 79,156 MCF | Sep 2024 - Oct 2025 | 1 |
| DEMING-DEBILL SA1 1H | Karnes County, TX | Sep 2025 | 8,397 BBLs | 98,660 MCF | Sep 2024 - Oct 2025 | 1 |
| DEMING-LONG SA1 1H | Karnes County, TX | Sep 2025 | 9,758 BBLs | 116,622 MCF | Sep 2024 - Oct 2025 | 1 |
| DULLYE 01 | Karnes County, TX | Sep 2025 | 13,787 BBLs | 165,250 MCF | Nov 2010 - Oct 2025 | 8 |
| EASLEY UNIT | Karnes County, TX | Sep 2025 | 15,196 BBLs | 273,719 MCF | May 2010 - Oct 2025 | 11 |
| ELIZONDO 01 0 | Karnes County, TX | Sep 2025 | 118,180 BBLs | 495,033 MCF | Jul 2025 - Oct 2025 | 9 |
| ETHRIDGE UNIT | Atascosa County, TX | Sep 2025 | 7,295 BBLs | 14,835 MCF | Sep 2011 - Oct 2025 | 6 |
| FORISTER 541 | Karnes County, TX | Sep 2025 | 14,330 BBLs | 24,634 MCF | Dec 2011 - Oct 2025 | 12 |
| FOSTER UNIT | Karnes County, TX | Sep 2025 | 4,563 BBLs | 55,019 MCF | Apr 2011 - Oct 2025 | 20 |
| FOUSHEE-WRIGHT KEATHLEY SA | Atascosa County, TX | Sep 2025 | 7,635 BBLs | 8,557 MCF | Apr 2021 - Oct 2025 | 4 |
| FRANK MALEK 0 | Live Oak County, TX | Sep 2025 | 14,923 BBLs | 298,022 MCF | Sep 2012 - Oct 2025 | 19 |
| FRANKE UNIT | Karnes County, TX | Sep 2025 | 15,601 BBLs | 71,029 MCF | Dec 2010 - Oct 2025 | 24 |
| FRANSEN UNIT | Karnes County, TX | Sep 2025 | 23,897 BBLs | 41,419 MCF | Aug 2025 - Oct 2025 | 7 |
| FRANSEN-DIRECT ASSETS SA | Karnes County, TX | Sep 2025 | 42,218 BBLs | 76,640 MCF | Aug 2025 - Oct 2025 | 2 |
| GUAJILLO | Live Oak County, TX | Sep 2025 | 30,833 BBLs | 60,028 MCF | Jun 2014 - Oct 2025 | 55 |
| GUAJILLO UNIT | Atascosa County, TX | Sep 2025 | 28,842 BBLs | 39,753 MCF | Jan 2015 - Oct 2025 | 71 |
| HALL-MANNING | Gonzales County, TX | Sep 2025 | 7,793 BBLs | 11,086 MCF | Sep 2014 - Oct 2025 | 7 |
| HANDY | Karnes County, TX | Sep 2025 | 8,441 BBLs | 31,319 MCF | Apr 2010 - Oct 2025 | 14 |
| HARTMAN-RIPPSTEIN MIKKELSON SA1 | Karnes County, TX | Sep 2025 | 8,025 BBLs | 14,167 MCF | Aug 2024 - Oct 2025 | 1 |
| HAVEMAN | Karnes County, TX | Sep 2025 | 5,256 BBLs | 95,641 MCF | Dec 2010 - Oct 2025 | 14 |
| HEMBY UNIT | Karnes County, TX | Sep 2025 | 5,578 BBLs | 40,628 MCF | Aug 2012 - Oct 2025 | 19 |
| HIERHOLZER RETZLOFF | Atascosa County, TX | Sep 2025 | 53,585 BBLs | 89,419 MCF | Jun 2011 - Oct 2025 | 4 |
| HIERHOLZER SEEWALD | Atascosa County, TX | Sep 2025 | 8,284 BBLs | 7,460 MCF | Jun 2011 - Oct 2025 | 3 |
| HOLLAND OPIELA | Karnes County, TX | Sep 2025 | 7,716 BBLs | 16,282 MCF | Dec 2011 - Oct 2025 | 6 |
| HOLLMAN | Karnes County, TX | Sep 2025 | 5,495 BBLs | 40,648 MCF | Mar 2011 - Oct 2025 | 22 |
| HONS RAFTER UNIT | Karnes County, TX | Sep 2025 | 11,548 BBLs | 16,889 MCF | Jun 2013 - Oct 2025 | 5 |
| HOPE-BRUNS SA1 1H | DeWitt County, TX | Sep 2025 | 6,555 BBLs | 44,763 MCF | Jun 2024 - Oct 2025 | 1 |
| IVAS SMITH 0 | Live Oak County, TX | Sep 2025 | 6,549 BBLs | 43,969 MCF | Sep 2012 - Oct 2025 | 10 |
| JANSSEN - OETKEN 01 | Karnes County, TX | Sep 2025 | 4,159 BBLs | 76,590 MCF | Apr 2023 - Oct 2025 | 5 |
| JULIE BECK | Live Oak County, TX | Sep 2025 | 8,365 BBLs | 42,782 MCF | Nov 2010 - Oct 2025 | 17 |
| KARNES CITY | Karnes County, TX | Sep 2025 | 9,609 BBLs | 16,757 MCF | Dec 2013 - Oct 2025 | 15 |
| KARNES CITY N | Karnes County, TX | Sep 2025 | 8,500 BBLs | 13,027 MCF | Apr 2014 - Oct 2025 | 13 |
| KELLNER-JONAS | Live Oak County, TX | Sep 2025 | 18,086 BBLs | 37,780 MCF | Jun 2011 - Oct 2025 | 8 |
| KIRK 01 | Karnes County, TX | Sep 2025 | 32,095 BBLs | 330,703 MCF | Apr 2011 - Oct 2025 | 14 |
| KIRK-LONG SA | Karnes County, TX | Sep 2025 | 14,018 BBLs | 122,604 MCF | Feb 2025 - Oct 2025 | 2 |
| KOOPMAN | DeWitt County, TX | Sep 2025 | 21,602 BBLs | 259,338 MCF | Jun 2011 - Oct 2025 | 7 |
| L.B. HAILEY | Karnes County, TX | Sep 2025 | 6,338 BBLs | 45,176 MCF | Jun 2013 - Oct 2025 | 4 |
| L.B. HAILEY-DAVILA | Karnes County, TX | Sep 2025 | 19,036 BBLs | 81,353 MCF | Apr 2024 - Oct 2025 | 2 |
| LESKE-JUDD-MOTL SA D | DeWitt County, TX | Sep 2025 | 8,577 BBLs | 53,698 MCF | Oct 2024 - Oct 2025 | 1 |
| LESKE-MOTL SA | DeWitt County, TX | Sep 2025 | 23,948 BBLs | 165,123 MCF | Oct 2024 - Oct 2025 | 3 |
| LIVE OAK PARTNERS 0 | Live Oak County, TX | Sep 2025 | 5,876 BBLs | 64,760 MCF | May 2013 - Oct 2025 | 6 |
| MANGIONE 01 | Karnes County, TX | Sep 2025 | 5,779 BBLs | 33,903 MCF | May 2012 - Oct 2025 | 15 |
| MAUCH TOM KRUEGER | Atascosa County, TX | Sep 2025 | 8,141 BBLs | 13,906 MCF | Apr 2023 - Oct 2025 | 2 |
| MAURER-MCFARLAND UNIT | Karnes County, TX | Sep 2025 | 8,057 BBLs | 20,373 MCF | Dec 2012 - Oct 2025 | 7 |
| MAY-RYAN UNIT | Karnes County, TX | Sep 2025 | 19,323 BBLs | 25,848 MCF | Feb 2012 - Oct 2025 | 11 |
| MCCOY EGBERT | Karnes County, TX | Sep 2025 | 9,968 BBLs | 21,630 MCF | Jan 2013 - Oct 2025 | 7 |
| MCS FOUNDATION | Atascosa County, TX | Sep 2025 | 68,986 BBLs | 64,702 MCF | Jul 2025 - Oct 2025 | 4 |
| MEDINA-HOFFMAN | Karnes County, TX | Sep 2025 | 8,185 BBLs | 12,586 MCF | Apr 2012 - Oct 2025 | 7 |
| MEDINA-JONAS | Karnes County, TX | Sep 2025 | 13,087 BBLs | 14,653 MCF | Feb 2012 - Oct 2025 | 18 |
| MILLER RIDOUT | Karnes County, TX | Sep 2025 | 39,516 BBLs | 45,935 MCF | Sep 2025 - Oct 2025 | 8 |
| MOBIL UNIT | Karnes County, TX | Sep 2025 | 7,063 BBLs | 56,048 MCF | Nov 2012 - Oct 2025 | 31 |
| MOCZYGEMBA | Karnes County, TX | Sep 2025 | 8,123 BBLs | 21,163 MCF | Oct 2013 - Oct 2025 | 7 |
| MOHR-HONS UNIT | Karnes County, TX | Sep 2025 | 8,284 BBLs | 10,265 MCF | May 2012 - Oct 2025 | 8 |
| MURPHY-SINCLAIR UNIT | Karnes County, TX | Sep 2025 | 5,909 BBLs | 29,079 MCF | Oct 2012 - Oct 2025 | 14 |
| OLSON ESSE-KENNEDY SA | Karnes County, TX | Sep 2025 | 8,517 BBLs | 116,667 MCF | May 2024 - Oct 2025 | 2 |
| OLSON-ESSE UNIT | Karnes County, TX | Sep 2025 | 4,608 BBLs | 84,231 MCF | May 2012 - Oct 2025 | 4 |
| PATINO UNIT | Karnes County, TX | Sep 2025 | 17,622 BBLs | 205,672 MCF | Oct 2010 - Oct 2025 | 3 |
| PATINO-FRANKE UNIT SA1 1H | Karnes County, TX | Sep 2025 | 14,017 BBLs | 123,045 MCF | Feb 2025 - Oct 2025 | 1 |
| PFEIFER-SCHEELE HUTH UNIT A SA | Karnes County, TX | Sep 2025 | 19,846 BBLs | 50,568 MCF | Jan 2025 - Oct 2025 | 4 |
| R MAY A-MAY GIRLS CHAPMAN SA2 | Atascosa County, TX | Sep 2025 | 18,201 BBLs | 19,943 MCF | Jun 2025 - Oct 2025 | 1 |
| R MAY A-SCHROEDER CHAPMAN SA1 | Atascosa County, TX | Sep 2025 | 17,068 BBLs | 16,995 MCF | Jun 2025 - Oct 2025 | 1 |
| R. MAY | Atascosa County, TX | Sep 2025 | 18,916 BBLs | 13,128 MCF | Jun 2012 - Oct 2025 | 42 |
| RETZLOFF-MAY | Atascosa County, TX | Sep 2025 | 9,267 BBLs | 7,066 MCF | Oct 2011 - Oct 2025 | 2 |
| REYNOLDS | Karnes County, TX | Sep 2025 | 44,928 BBLs | 146,565 MCF | May 2011 - Oct 2025 | 17 |
| RIDLEY | Karnes County, TX | Sep 2025 | 62,893 BBLs | 173,755 MCF | Jun 2025 - Oct 2025 | 30 |
| RIPPSTEIN-HONS RAFTER SA | Karnes County, TX | Sep 2025 | 23,059 BBLs | 48,815 MCF | Aug 2024 - Oct 2025 | 2 |
| SAN CHRISTOVAL | Live Oak County, TX | Sep 2025 | 182,810 BBLs | 765,150 MCF | Sep 2011 - Oct 2025 | 68 |
| SCHENDEL | Karnes County, TX | Sep 2025 | 17,465 BBLs | 93,115 MCF | Oct 2010 - Oct 2025 | 27 |
| SIENKIEWICZ UNIT | Karnes County, TX | Sep 2025 | 6,141 BBLs | 28,169 MCF | Nov 2012 - Oct 2025 | 13 |
| SMITH-MELLICK | Karnes County, TX | Sep 2025 | 7,545 BBLs | 14,148 MCF | Dec 2011 - Oct 2025 | 6 |
| STEWART-GIESE | Atascosa County, TX | Sep 2025 | 29,132 BBLs | 41,527 MCF | Nov 2011 - Oct 2025 | 4 |
| STRAUBE 01 | DeWitt County, TX | Sep 2025 | 5,482 BBLs | 102,970 MCF | Apr 2011 - Oct 2025 | 11 |
| SWIZE MCFARLAND UNIT | Karnes County, TX | Sep 2025 | 9,069 BBLs | 16,931 MCF | Dec 2012 - Oct 2025 | 5 |
| TIPTON-JONAS UNIT | Karnes County, TX | Sep 2025 | 9,221 BBLs | 19,905 MCF | May 2012 - Oct 2025 | 7 |
| TOM-SMITH UNIT | Atascosa County, TX | Sep 2025 | 21,399 BBLs | 16,714 MCF | May 2021 - Oct 2025 | 12 |
| TURNBULL | Karnes County, TX | Sep 2025 | 31,840 BBLs | 104,470 MCF | Jun 2010 - Oct 2025 | 51 |
| WARNER | Karnes County, TX | Sep 2025 | 9,882 BBLs | 47,799 MCF | Apr 2012 - Oct 2025 | 15 |
| WESSENDORFF | Karnes County, TX | Sep 2025 | 17,910 BBLs | 216,840 MCF | Apr 2006 - Oct 2025 | 28 |
| WINGNUT UNIT | Karnes County, TX | Sep 2025 | 10,390 BBLs | 20,412 MCF | Jan 2013 - Oct 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 |