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 - Jul 2026 |
| Total Oil Production | 562,353,268 BBLs |
| Total Gas Production | 1,711,840,364 MCF |
| Estimated Daily Oil Prod. | 76,096 BBLs |
| Estimated Daily Gas Prod. | 282,747 MCF |
| Estimated Daily Water Prod. | 39,088 BBLs |
| Producing Wells | 2,336 |
| 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 | |||
| 42-177-34708 | BARNHART (EF) H UNIT SA3 3H | PRODUCING | Gonzales County, TX | 29.280097 | -97.512958 | |||
| 42-177-34752 | BARNHART (EF)-HFS SA5 132H | PRODUCING | Gonzales County, TX | 29.316315 | -97.501800 | |||
| 42-177-34753 | BARNHART (EF)-HFS SA6 134H | PRODUCING | Gonzales County, TX | 29.316268 | -97.501745 | |||
| 42-177-34754 | BARNHART (EF)-HFS SA7 135H | PRODUCING | Gonzales County, TX | 29.316221 | -97.501686 | |||
| 42-177-34613 | BARNHART (EF)-J.M. PRESTON SA5 121H | PRODUCING | Gonzales County, TX | 29.302404 | -97.506401 | |||
| 42-255-38165 | BEST FENNER-MORGAN SA1 1H | Horizontal Well Surface Locatio | Karnes County, TX | 28.820124 | -98.007918 | |||
| 42-177-34758 | CHERRY BERGEY SA1 1H | Horizontal Well Surface Locatio | Gonzales County, TX | 29.383995 | -97.306245 | |||
| 42-177-34759 | CHERRY BERGEY SELMAN SA4 4H | Horizontal Well Surface Locatio | Gonzales County, TX | 29.383976 | -97.306320 | |||
| 42-177-34760 | CHERRY BERGEY SELMAN SA5 5H | Horizontal Well Surface Locatio | Gonzales County, TX | 29.383956 | -97.306395 | |||
| 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 | |||
| 42-013-36074 | DEATLEY GRIFFIN MAY SA3 3H | PRODUCING | Atascosa County, TX | 28.769112 | -98.124487 | |||
| 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 | |||
| 42-123-33046 | EDWARD ROEDER 02 03H | PRODUCING | DeWitt County, TX | 28.998165 | -97.606056 | |||
| 42-123-33047 | EDWARD ROEDER 02 04H | PRODUCING | DeWitt County, TX | 28.998170 | -97.605969 | |||
| 42-123-35597 | EDWARD ROEDER-JAMES GANO SA1 1H | PRODUCING | DeWitt County, TX | 28.998684 | -97.606002 | |||
| 42-123-35609 | EDWARD ROEDER-MIGURA A SA1 1H | PRODUCING | DeWitt County, TX | 28.998625 | -97.606044 | |||
| 42-255-38147 | FELIX UNIT 3H | Horizontal Well Surface Locatio | Karnes County, TX | 28.843259 | -98.023457 | |||
| 42-255-38146 | FELIX UNIT 4H | Horizontal Well Surface Locatio | Karnes County, TX | 28.843195 | -98.023432 | |||
| 42-255-38145 | FELIX UNIT 5H | Horizontal Well Surface Locatio | Karnes County, TX | 28.843128 | -98.023410 | |||
| 42-255-38148 | FELIX UNIT 9H | Horizontal Well Surface Locatio | Karnes County, TX | 28.843326 | -98.023482 | |||
| 42-255-38149 | FELIX-SMITH MELLICK SA 1H | Horizontal Well Surface Locatio | Karnes County, TX | 28.843065 | -98.023385 | |||
| 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 | |||
| 42-013-36230 | GRIFFIN-KRUEGER SA1 1H | PRODUCING | Atascosa County, TX | 28.789263 | -98.160948 | |||
| 42-013-36231 | GRIFFIN-KRUEGER SA2 2H | PRODUCING | Atascosa County, TX | 28.789317 | -98.160999 | |||
| 42-013-36232 | GRIFFIN-KRUEGER SA3 3H | PRODUCING | Atascosa County, TX | 28.789368 | -98.161049 | |||
| 42-013-36233 | GRIFFIN-KRUEGER SA4 4H | PRODUCING | Atascosa County, TX | 28.789421 | -98.161099 | |||
| 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 | |||
| 42-013-36039 | HIERHOLZER-CHAPMAN SA 1H | PRODUCING | Atascosa County, TX | 28.791353 | -98.115736 | |||
| 42-255-38271 | JOHNSON-TSCHIRHART UNIT 10H | Horizontal Well Surface Locatio | Karnes County, TX | 28.776054 | -97.934476 | |||
| 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 | |||
| 42-013-36220 | MCS FOUNDATION UNIT 7H | PRODUCING | Atascosa County, TX | 28.761987 | -98.199741 | |||
| 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 | |||
| 42-013-36097 | MIDDLE MCCOWEN 174H | PRODUCING | Atascosa County, TX | 28.664299 | -98.372905 | |||
| 42-013-36098 | MIDDLE MCCOWEN 175H | PRODUCING | Atascosa County, TX | 28.664346 | -98.372838 | |||
| 42-013-35965 | MIDDLE MCCOWEN 188H | PRODUCING | Atascosa County, TX | 28.692612 | -98.365250 | |||
| 42-255-38261 | MILLER RIDOUT MIKKELSON SA1 1H | Horizontal Well Surface Locatio | Karnes County, TX | 28.870405 | -97.927594 | |||
| 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 | |||
| 42-255-38057 | 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 | |||
| 42-013-36087 | 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 | ||
| 01-20617 | 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 | ||
| 01-21670 | BARNHART (EF) H UNIT SA3 | 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 | ||
| 01-21225 | BARNHART (EF)-J.M. PRESTON SA5 | Gonzales County, TX | ||
| 02-10478 | BORIS UNIT | Karnes County, TX | ||
| 02-10446 | CHALLENGER UNIT C | Karnes County, TX | ||
| 02-10297 | CHAPMAN-HUMMEL UNIT | Karnes County, TX | ||
| 02-300842 | DAVIS-ALEXANDER SA1 1H | Karnes County, TX | ||
| 02-300819 | DAVIS-MENSIK SA1 1H | Karnes County, TX | ||
| 01-21201 | DEATLEY GRIFFIN MAY SA3 | Atascosa County, TX | ||
| 02-271129 | DEBILL 01 04H | Karnes County, TX | ||
| 02-298251 | DEMING-DEBILL SA1 1H | Karnes County, TX | ||
| 02-298466 | DEMING-LONG SA1 1H | Karnes County, TX | ||
| 02-271327 | EDWARD ROEDER 02 03H | DeWitt County, TX | ||
| 02-271534 | EDWARD ROEDER 02 04H | DeWitt County, TX | ||
| 02-300902 | EDWARD ROEDER-JAMES GANO SA1 1H | DeWitt County, TX | ||
| 02-300923 | EDWARD ROEDER-MIGURA A SA1 1H | DeWitt County, TX | ||
| 02-301342 | ELIZONDO 01 07H | Karnes County, TX | ||
| 02-301354 | ELIZONDO 01 08H | Karnes County, TX | ||
| 02-301388 | ELIZONDO 01 09H | Karnes County, TX | ||
| 01-21864 | GRIFFIN-KRUEGER SA1 | Atascosa County, TX | ||
| 01-21865 | GRIFFIN-KRUEGER SA2 | Atascosa County, TX | ||
| 01-21872 | GRIFFIN-KRUEGER SA3 | Atascosa County, TX | ||
| 01-21866 | GRIFFIN-KRUEGER SA4 | 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 | ||
| 01-21193 | HIERHOLZER-CHAPMAN SA | Atascosa County, TX | ||
| 02-10539 | HONS RAFTER UNIT | Karnes County, TX | ||
| 02-296240 | L.B. HAILEY-DAVILA-BAILEY SA 1H | 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 | ||
| 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 | ||
| 01-21496 | RETZLOFF-MAY-TOM SA1 | Atascosa 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 | ||
| 01-21658 | 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 |
| ALEXANDER 01 | Karnes County, TX | Mar 2026 | 6,917 BBLs | 37,627 MCF | Jan 2012 - Apr 2026 | 6 |
| ANNE FRIAR THOMAS | DeWitt County, TX | Mar 2026 | 10,076 BBLs | 51,636 MCF | Mar 2026 - Apr 2026 | 2 |
| BARBOZA UNIT | Karnes County, TX | Mar 2026 | 6,665 BBLs | 71,035 MCF | Apr 2011 - Apr 2026 | 16 |
| BARNHART | Gonzales County, TX | Mar 2026 | 136,868 BBLs | 166,161 MCF | Jul 2010 - Apr 2026 | 129 |
| BARNHART (EF) | Gonzales County, TX | Mar 2026 | 32,199 BBLs | 19,173 MCF | Aug 2023 - Apr 2026 | 12 |
| BEAM MEYER-RICHARD BUTLER B SA | Karnes County, TX | Mar 2026 | 14,447 BBLs | 24,456 MCF | Aug 2024 - Apr 2026 | 3 |
| BEAM MEYER-TINA BUTLER SA1 | Karnes County, TX | Mar 2026 | 6,720 BBLs | 11,753 MCF | Aug 2024 - Apr 2026 | 1 |
| BEST FENNER | Karnes County, TX | Mar 2026 | 7,386 BBLs | 22,933 MCF | Aug 2025 - Apr 2026 | 8 |
| BILSKY-CHUMCHAL SA | Gonzales County, TX | Mar 2026 | 6,323 BBLs | 11,356 MCF | Nov 2022 - Apr 2026 | 3 |
| BORIS UNIT | Karnes County, TX | Mar 2026 | 9,271 BBLs | 9,738 MCF | Apr 2013 - Mar 2026 | 15 |
| BRYSCH ADAMS-BRYSCH JONAS | Karnes County, TX | Mar 2026 | 7,061 BBLs | 13,235 MCF | Sep 2022 - Apr 2026 | 2 |
| CARTER-HOLM | Karnes County, TX | Mar 2026 | 6,594 BBLs | 11,846 MCF | May 2012 - Apr 2026 | 11 |
| CHALLENGER | Karnes County, TX | Mar 2026 | 28,925 BBLs | 51,220 MCF | Feb 2013 - Apr 2026 | 39 |
| CHAPMAN HUMMEL | Karnes County, TX | Mar 2026 | 12,387 BBLs | 18,308 MCF | Oct 2012 - Apr 2026 | 5 |
| CHERRY BERGEY S | Gonzales County, TX | Mar 2026 | 44,127 BBLs | 48,363 MCF | Jan 2026 - Apr 2026 | 3 |
| CHILDRENS-WESTON UNIT | Karnes County, TX | Mar 2026 | 5,369 BBLs | 48,075 MCF | May 2012 - Apr 2026 | 18 |
| COY CITY RANCH | Karnes County, TX | Mar 2026 | 6,272 BBLs | 21,890 MCF | May 2011 - Apr 2026 | 18 |
| DAVILA-GRAHAM | Karnes County, TX | Mar 2026 | 7,185 BBLs | 40,278 MCF | Sep 2012 - Apr 2026 | 10 |
| DAVIS | Karnes County, TX | Mar 2026 | 5,795 BBLs | 31,771 MCF | Jan 2011 - Apr 2026 | 8 |
| DAVIS-ALEXANDER SA1 1H | Karnes County, TX | Mar 2026 | 18,459 BBLs | 117,106 MCF | Apr 2025 - Apr 2026 | 1 |
| DAVIS-MENSIK SA1 1H | Karnes County, TX | Mar 2026 | 21,543 BBLs | 131,829 MCF | Apr 2025 - Apr 2026 | 1 |
| DEATLEY-GRIFFIN | Atascosa County, TX | Mar 2026 | 19,841 BBLs | 18,930 MCF | Nov 2011 - Apr 2026 | 5 |
| DEBILL 01 | Karnes County, TX | Mar 2026 | 24,577 BBLs | 87,358 MCF | Dec 2011 - Apr 2026 | 11 |
| DEMING-DEBILL SA1 1H | Karnes County, TX | Mar 2026 | 5,963 BBLs | 74,394 MCF | Sep 2024 - Apr 2026 | 1 |
| DEMING-LONG SA1 1H | Karnes County, TX | Mar 2026 | 6,038 BBLs | 69,727 MCF | Sep 2024 - Apr 2026 | 1 |
| DULLYE 01 | Karnes County, TX | Mar 2026 | 10,022 BBLs | 129,435 MCF | Nov 2010 - Apr 2026 | 6 |
| EASLEY UNIT | Karnes County, TX | Mar 2026 | 10,740 BBLs | 192,769 MCF | May 2010 - Apr 2026 | 11 |
| ELIZONDO 01 0 | Karnes County, TX | Mar 2026 | 26,122 BBLs | 145,202 MCF | Jun 2011 - Apr 2026 | 2 |
| FELIX UNIT | Karnes County, TX | Mar 2026 | 44,579 BBLs | 53,958 MCF | Dec 2025 - Apr 2026 | 8 |
| FELIX-SMITH MELLICK SA 1H | Karnes County, TX | Mar 2026 | 10,122 BBLs | 7,881 MCF | Dec 2025 - Apr 2026 | 1 |
| FORISTER 541 | Karnes County, TX | Mar 2026 | 14,035 BBLs | 19,010 MCF | Dec 2011 - Apr 2026 | 12 |
| FRANK MALEK 0 | Live Oak County, TX | Mar 2026 | 10,090 BBLs | 237,108 MCF | Sep 2012 - Apr 2026 | 17 |
| FRANKE UNIT | Karnes County, TX | Mar 2026 | 12,898 BBLs | 78,098 MCF | Dec 2010 - Apr 2026 | 22 |
| FRANKE-JOHNSON | Karnes County, TX | Mar 2026 | 6,177 BBLs | 95,171 MCF | Jun 2012 - Apr 2026 | 14 |
| FRANSEN UNIT | Karnes County, TX | Mar 2026 | 7,625 BBLs | 16,254 MCF | Aug 2025 - Apr 2026 | 7 |
| FRANSEN-DIRECT ASSETS SA | Karnes County, TX | Mar 2026 | 16,286 BBLs | 64,335 MCF | Aug 2025 - Apr 2026 | 2 |
| GRIFFIN-KRUEGER SA | Atascosa County, TX | Mar 2026 | 86,603 BBLs | 95,585 MCF | Jan 2026 - Apr 2026 | 4 |
| GUAJILLO | Live Oak County, TX | Mar 2026 | 9,991 BBLs | 26,068 MCF | Jun 2014 - Apr 2026 | 63 |
| GUAJILLO UNIT | Atascosa County, TX | Mar 2026 | 29,102 BBLs | 29,900 MCF | Jan 2015 - Apr 2026 | 71 |
| HANDY | Karnes County, TX | Mar 2026 | 6,429 BBLs | 28,089 MCF | Apr 2010 - Apr 2026 | 14 |
| HARTMAN-RIPPSTEIN MIKKELSON SA1 | Karnes County, TX | Mar 2026 | 6,174 BBLs | 7,522 MCF | Aug 2024 - Apr 2026 | 1 |
| HAVEMAN | Karnes County, TX | Mar 2026 | 3,923 BBLs | 105,973 MCF | Dec 2010 - Apr 2026 | 9 |
| HEMBY UNIT | Karnes County, TX | Mar 2026 | 6,221 BBLs | 46,089 MCF | Aug 2012 - Apr 2026 | 16 |
| HIERHOLZER | Atascosa County, TX | Mar 2026 | 8,384 BBLs | 6,848 MCF | Nov 2010 - Apr 2026 | 3 |
| HIERHOLZER RETZLOFF | Atascosa County, TX | Mar 2026 | 35,984 BBLs | 74,247 MCF | Jun 2011 - Apr 2026 | 4 |
| HIERHOLZER SEEWALD | Atascosa County, TX | Mar 2026 | 7,604 BBLs | 11,118 MCF | Jun 2011 - Apr 2026 | 3 |
| HOLLMAN | Karnes County, TX | Mar 2026 | 5,322 BBLs | 31,544 MCF | Mar 2011 - Apr 2026 | 21 |
| HONS RAFTER UNIT | Karnes County, TX | Mar 2026 | 9,190 BBLs | 8,094 MCF | Jun 2013 - Apr 2026 | 5 |
| JANSSEN - OETKEN 01 | Karnes County, TX | Mar 2026 | 3,902 BBLs | 60,654 MCF | Apr 2023 - Apr 2026 | 5 |
| JAUER UNIT | Karnes County, TX | Mar 2026 | 6,030 BBLs | 3,981 MCF | Apr 2012 - Apr 2026 | 4 |
| JOHNSON-TSCHIRHART UNIT | Karnes County, TX | Mar 2026 | 36,059 BBLs | 353,884 MCF | Oct 2025 - Apr 2026 | 5 |
| JULIE BECK | Live Oak County, TX | Mar 2026 | 7,801 BBLs | 34,183 MCF | Nov 2010 - Apr 2026 | 17 |
| KARNES CITY N | Karnes County, TX | Mar 2026 | 8,165 BBLs | 12,911 MCF | Apr 2014 - Apr 2026 | 13 |
| KELLNER-JONAS | Live Oak County, TX | Mar 2026 | 15,491 BBLs | 36,763 MCF | Jun 2011 - Apr 2026 | 8 |
| KIRK 01 | Karnes County, TX | Mar 2026 | 26,125 BBLs | 319,263 MCF | Apr 2011 - Apr 2026 | 14 |
| KIRK-LONG SA | Karnes County, TX | Mar 2026 | 8,727 BBLs | 94,204 MCF | Feb 2025 - Apr 2026 | 2 |
| KOOPMAN | DeWitt County, TX | Mar 2026 | 12,494 BBLs | 140,339 MCF | Jun 2011 - Apr 2026 | 6 |
| L.B. HAILEY-DAVILA | Karnes County, TX | Mar 2026 | 8,925 BBLs | 64,638 MCF | Apr 2024 - Apr 2026 | 2 |
| LABUS PITTMAN UNIT | Karnes County, TX | Mar 2026 | 7,207 BBLs | 8,788 MCF | Jan 2016 - Apr 2026 | 8 |
| MANGIONE 01 | Karnes County, TX | Mar 2026 | 5,751 BBLs | 27,499 MCF | May 2012 - Apr 2026 | 15 |
| MAURER-MCFARLAND UNIT | Karnes County, TX | Mar 2026 | 6,312 BBLs | 18,234 MCF | Dec 2012 - Apr 2026 | 7 |
| MAY B UNIT | Karnes County, TX | Mar 2026 | 5,139 BBLs | 50,406 MCF | Dec 2012 - Apr 2026 | 15 |
| MAY-RYAN UNIT | Karnes County, TX | Mar 2026 | 8,822 BBLs | 11,152 MCF | Feb 2012 - Apr 2026 | 11 |
| MCCOY EGBERT | Karnes County, TX | Mar 2026 | 6,268 BBLs | 11,802 MCF | Jan 2013 - Apr 2026 | 7 |
| MCS FOUNDATION | Atascosa County, TX | Mar 2026 | 30,285 BBLs | 47,126 MCF | Jul 2025 - Apr 2026 | 4 |
| MEDINA-HOFFMAN | Karnes County, TX | Mar 2026 | 7,075 BBLs | 9,932 MCF | Apr 2012 - Apr 2026 | 7 |
| MEDINA-JONAS | Karnes County, TX | Mar 2026 | 9,698 BBLs | 10,988 MCF | Feb 2012 - Apr 2026 | 18 |
| MILLER-RIDOUT | Karnes County, TX | Mar 2026 | 23,164 BBLs | 63,609 MCF | Sep 2025 - Apr 2026 | 8 |
| MOBIL UNIT | Karnes County, TX | Mar 2026 | 8,577 BBLs | 50,435 MCF | Nov 2012 - Apr 2026 | 30 |
| MOHR-HONS UNIT | Karnes County, TX | Mar 2026 | 6,563 BBLs | 6,399 MCF | May 2012 - Apr 2026 | 8 |
| MORGAN UNIT | Karnes County, TX | Mar 2026 | 5,681 BBLs | 20,217 MCF | Apr 2010 - Apr 2026 | 16 |
| MURPHY-SINCLAIR UNIT | Karnes County, TX | Mar 2026 | 7,961 BBLs | 42,505 MCF | Oct 2012 - Apr 2026 | 14 |
| OLSON ESSE-KENNEDY SA | Karnes County, TX | Mar 2026 | 6,202 BBLs | 89,815 MCF | May 2024 - Apr 2026 | 2 |
| PATINO UNIT | Karnes County, TX | Mar 2026 | 7,575 BBLs | 118,556 MCF | Oct 2010 - Apr 2026 | 3 |
| PATINO-FRANKE UNIT SA1 1H | Karnes County, TX | Mar 2026 | 4,446 BBLs | 85,042 MCF | Feb 2025 - Apr 2026 | 1 |
| PFEIFER-SCHEELE HUTH UNIT A SA | Karnes County, TX | Mar 2026 | 9,686 BBLs | 18,707 MCF | Jan 2025 - Apr 2026 | 4 |
| R MAY A-MAY GIRLS CHAPMAN SA2 | Atascosa County, TX | Mar 2026 | 14,353 BBLs | 24,371 MCF | Jun 2025 - Apr 2026 | 1 |
| R MAY A-SCHROEDER CHAPMAN SA1 | Atascosa County, TX | Mar 2026 | 13,745 BBLs | 25,471 MCF | Jun 2025 - Apr 2026 | 1 |
| R. MAY | Atascosa County, TX | Mar 2026 | 20,023 BBLs | 18,018 MCF | Jun 2012 - Apr 2026 | 42 |
| RANCHO GRANDE TRUST | Karnes County, TX | Mar 2026 | 6,969 BBLs | 28,205 MCF | Jun 2010 - Apr 2026 | 12 |
| RETZLOFF-MAY | Atascosa County, TX | Mar 2026 | 7,505 BBLs | 13,694 MCF | Oct 2011 - Apr 2026 | 2 |
| REYNOLDS | Karnes County, TX | Mar 2026 | 5,905 BBLs | 21,640 MCF | May 2011 - Apr 2026 | 14 |
| RIDLEY | Karnes County, TX | Mar 2026 | 41,105 BBLs | 273,965 MCF | Jul 2011 - Apr 2026 | 30 |
| RIPPSTEIN-HONS RAFTER SA | Karnes County, TX | Mar 2026 | 19,618 BBLs | 31,002 MCF | Aug 2024 - Apr 2026 | 2 |
| SAN CHRISTOVAL | Live Oak County, TX | Mar 2026 | 129,160 BBLs | 619,411 MCF | Sep 2011 - Apr 2026 | 65 |
| SCHENDEL | Karnes County, TX | Mar 2026 | 13,145 BBLs | 56,428 MCF | Oct 2010 - Apr 2026 | 23 |
| SCHORLEMER | DeWitt County, TX | Mar 2026 | 5,221 BBLs | 25,916 MCF | May 2012 - Apr 2026 | 10 |
| SMITH-MELLICK | Karnes County, TX | Mar 2026 | 6,036 BBLs | 7,933 MCF | Dec 2011 - Apr 2026 | 6 |
| STEWART-GIESE | Atascosa County, TX | Mar 2026 | 20,759 BBLs | 22,498 MCF | Nov 2011 - Apr 2026 | 4 |
| STRAUBE 01 | DeWitt County, TX | Mar 2026 | 4,616 BBLs | 97,852 MCF | Apr 2011 - Apr 2026 | 11 |
| SWIZE MCFARLAND UNIT | Karnes County, TX | Mar 2026 | 7,366 BBLs | 16,944 MCF | Dec 2012 - Apr 2026 | 5 |
| THOMAS-ANNE SA2 2H | DeWitt County, TX | Mar 2026 | 6,697 BBLs | 30,764 MCF | Mar 2026 - Apr 2026 | 1 |
| TIPTON-JONAS UNIT | Karnes County, TX | Mar 2026 | 8,301 BBLs | 12,967 MCF | May 2012 - Apr 2026 | 7 |
| TOM-SMITH UNIT | Atascosa County, TX | Mar 2026 | 18,638 BBLs | 12,931 MCF | May 2021 - Apr 2026 | 12 |
| TURNBULL | Karnes County, TX | Mar 2026 | 28,933 BBLs | 103,157 MCF | Jun 2010 - Apr 2026 | 47 |
| WARNER | Karnes County, TX | Mar 2026 | 9,644 BBLs | 58,127 MCF | Apr 2012 - Apr 2026 | 10 |
| WESSENDORFF | Karnes County, TX | Mar 2026 | 16,615 BBLs | 200,602 MCF | Apr 2006 - Apr 2026 | 29 |
| WIEDING-WESTON UNIT | Karnes County, TX | Mar 2026 | 4,985 BBLs | 35,480 MCF | Nov 2012 - Apr 2026 | 6 |
| WINGNUT UNIT | Karnes County, TX | Mar 2026 | 7,139 BBLs | 11,013 MCF | Jan 2013 - Apr 2026 | 18 |
| YOSKO BORGFELD | Karnes County, TX | Mar 2026 | 7,707 BBLs | 12,912 MCF | Aug 2011 - Apr 2026 | 5 |
| 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 |