Home › Texas › Operators

MARATHON OIL EF LLC: wells in Texas

2,957wells on record
2,484active
449shut in or idle
24plugged
7disposal / injection

All of this operator's wells, every state, one download →

Where they operate

County	Active	Wells
Karnes	1,492	1,777
Atascosa	431	505
Live Oak	299	358
De Witt	219	261
Mcmullen	32	37
Bee	11	11
Gonzales	0	6
Wilson	0	2

Wells

Not plugged · All wells · Plugged · Orphaned

Well	API / ID	Status	Type
74 RANCH E 11	42-013-36200	Active	Oil
74 RANCH SPECIAL UNIT EAST 3H	42-013-34731	Shut in	Oil
74 RANCH SPECIAL UNIT EAST 5H	42-311-35448	Active	Oil
74 RANCH SPECIAL UNIT EAST 4H	42-311-35447	Active	Oil
74 RANCH SPECIAL UNIT EAST 1H	42-013-34730	Active	Oil
74 RANCH SPECIAL UNIT EAST 2H	42-013-34737	Active	Oil
74 RANCH SPECIAL UNIT WEST 4H	42-311-35523	Active	Oil
74 RANCH SPECIAL UNIT WEST 3H	42-311-35452	Active	Oil
74 RANCH SPECIAL UNIT WEST 2H	42-311-35451	Active	Oil
74 RANCH SPECIAL UNIT WEST 1H	42-311-35449	Active	Oil
74 RANCH UNIT S1 5H	42-013-35767	Active	Oil
74 RANCH UNIT S1 4H	42-013-35766	Active	Oil
74 RANCH UNIT S1 2H	42-013-35764	Active	Oil
74 RANCH UNIT S1 3H	42-013-35765	Active	Oil
74 RANCH UNIT S1 1H	42-013-35763	Active	Oil
74 RANCH UNIT S2 2H	42-013-35876	Active	Oil
74 RANCH UNIT S2 3H	42-013-35877	Active	Oil
74 RANCH UNIT S2 1H	42-013-35875	Active	Oil
74 RANCH UNIT S2 4H	42-013-35878	Active	Oil
74 RANCH UNIT S2 5H	42-013-35879	Active	Oil
74 RANCH UNIT S3 6H	42-013-35885	Active	Oil
74 RANCH UNIT S3 5H	42-013-35884	Active	Oil
74 RANCH UNIT S3 1H	42-013-35880	Active	Oil
74 RANCH UNIT S3 3H	42-013-35882	Active	Oil
74 RANCH UNIT S3 4H	42-013-35883	Active	Oil
74 RANCH UNIT S3 2H	42-013-35881	Active	Oil
74 RANCH-GUAJILLO UNIT A 4H	42-297-35981	Active	Oil
74 RANCH-GUAJILLO UNIT A 2H	42-297-35979	Active	Oil
74 RANCH-GUAJILLO UNIT A 1H	42-297-35978	Active	Oil
74 RANCH-GUAJILLO UNIT A 3H	42-297-35980	Active	Oil
74 RANCH-GUAJILLO UNIT A AC 1H	42-297-35982	Active	Oil
74 RANCH-GUAJILLO UNIT B 5H	42-013-35641	Active	Oil
74 RANCH-GUAJILLO UNIT B 1H	42-013-35637	Active	Oil
74 RANCH-GUAJILLO UNIT B 2H	42-013-35638	Active	Oil
74 RANCH-GUAJILLO UNIT B 4H	42-013-35640	Active	Oil
74 RANCH-GUAJILLO UNIT B 3H	42-013-35639	Active	Oil
74 RANCH-GUAJILLO UNIT C 5H	42-013-35894	Active	Oil
74 RANCH-GUAJILLO UNIT C 3H	42-013-35892	Active	Oil
74 RANCH-GUAJILLO UNIT C 1H	42-013-35890	Active	Oil
74 RANCH-GUAJILLO UNIT C 4H	42-013-35893	Active	Oil
74 RANCH-GUAJILLO UNIT C 2H	42-013-35891	Active	Oil
74 RANCH-GUAJILLO UNIT D 1H	42-013-35886	Active	Oil
74 RANCH-GUAJILLO UNIT D 4H	42-013-35889	Active	Oil
74 RANCH-GUAJILLO UNIT D 2H	42-013-35887	Active	Oil
74 RANCH-GUAJILLO UNIT D 3H	42-013-35888	Active	Oil
74-ATASCOSA SA 1 1H	42-013-35821	Active	Oil
74-ATASCOSA SA 2 2H	42-013-35823	Active	Oil
74-ATASCOSA UNIT 1 13H	42-013-35824	Active	Oil
74-ATASCOSA UNIT 1 1	42-013-34371	Active	Oil
74-ATASCOSA UNIT 1 3	42-013-34386	Active	Oil
74-ATASCOSA UNIT 1 4	42-013-34385	Active	Oil
ADAMS-TIPTON UNIT 7H	42-255-36381	Active	Oil
ADAMS-TIPTON UNIT 2H	42-255-32809	Shut in	Oil
ADAMS-TIPTON UNIT 6H	42-255-36382	Active	Oil
ADAMS-TIPTON UNIT 3H	42-255-32810	Shut in	Oil
ADAMS-TIPTON UNIT 5H	42-255-36380	Active	Oil
ADAMS-TIPTON UNIT 1H	42-255-32350	Shut in	Oil
ADAMS-TIPTON UNIT 4H	42-255-32984	Active	Oil
AFFLERBACH 01 02H	42-123-32768	Temporarily abandoned	Gas
AFFLERBACH 01 01H	42-123-32385	Temporarily abandoned	Gas
AFFLERBACH 01 - R01 - G01 A 01H	42-123-35118	Active	Gas
AFFLERBACH 01 - R01 - M01 A 01H	42-123-35119	Active	Gas
AFFLERBACH 01 - R01 - M01 B 02H	42-123-35120	Active	Gas
AFFLERBACH 01 - R01 - M01 C 03H	42-123-35121	Active	Gas
AFFLERBACH 01 - R01 - M01 D 04H	42-123-35122	Active	Gas
ALEXANDER 01 04H	42-255-33154	Active	Gas
ALEXANDER 01 01H	42-255-32061	Active	Gas
ALEXANDER 01 02H	42-255-32775	Active	Gas
ALEXANDER 01 03H	42-255-33164	Active	Gas
ALEXANDER 01 05H	42-255-33155	Active	Gas
ALEXANDER 01 AC 01H	42-255-37268	Active	Gas
ALEXANDER 01 AC 02H	42-255-37269	Active	Gas
ALVARADO 01 01H	42-025-33842	Active	Gas
ANN FRIAR THOMAS 6H	42-123-32715	Temporarily abandoned	Oil & gas
ANN FRIAR THOMAS 1H	42-123-32387	Temporarily abandoned	Oil & gas
ANN FRIAR THOMAS 4H	42-123-32777	Temporarily abandoned	Oil & gas
ANN FRIAR THOMAS 3H	42-123-32710	Temporarily abandoned	Oil & gas
ANN FRIAR THOMAS 2H	42-123-32651	Temporarily abandoned	Oil & gas
ANN FRIAR THOMAS 5H	42-123-32854	Temporarily abandoned	Oil & gas
ANZALDUA OXFORD UNIT 501H	42-255-37507	Active	Oil
ANZALDUA OXFORD UNIT 2H	42-255-33024	Shut in	Oil
ANZALDUA OXFORD UNIT 502H	42-255-37508	Active	Oil
ANZALDUA OXFORD UNIT 3H	42-255-33025	Active	Oil
ANZALDUA OXFORD UNIT 1H	42-255-33023	Active	Oil
ANZALDUA OXFORD-MARTINEZ SA 1H	42-255-37509	Active	Oil
AUGUST WITTE 2H	42-297-35313	Active	Oil
AUGUST WITTE 1H	42-297-35312	Shut in	Oil
AUGUST WITTE 3H	42-297-35314	Active	Oil
B. DUPNIK A-H. BROWN PSA 1H	42-255-35880	Active	Oil
B.DUPNIK-V.FOEGELLE-F.541 B SA 1H	42-255-37682	Active	Oil
BAILEY-RETZLOFF UNIT 510H	42-255-34821	Active	Oil
BAILEY-RETZLOFF UNIT 10H	42-255-34818	Active	Gas
BAILEY-RETZLOFF UNIT 7H	42-255-35127	Active	Gas
BAILEY-RETZLOFF UNIT 4H	42-255-35130	Active	Gas
BAILEY-RETZLOFF UNIT 6H	42-255-35128	Active	Gas
BAILEY-RETZLOFF UNIT 11H	42-255-34499	Temporarily abandoned	Gas
BAILEY-RETZLOFF UNIT 2H	42-255-32393	Active	Gas
BAILEY-RETZLOFF UNIT 1H	42-255-32337	Active	Gas
BAILEY-RETZLOFF UNIT 13H	42-255-34500	Active	Gas
BAILEY-RETZLOFF UNIT 3H	42-255-32403	Active	Gas

Operator names are shown as each state records them. Data as of 2026-10-17.