WELLS · UNITED STATES · ONE ROW PER API NUMBER

Marathon Oil EF LLC wells

Every well on file in every state Petrora holds. Narrow it to a state, a county, an operator, or the formation the well is completed in.What an API number is →

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2,903 wells match

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Production

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2,903 WELLS · PAGE 1 OF 59

These wells on a map →

Well	Operator	County, field or pool	Status	Depth, ft	Permit	Oil, 12 mo	Gas, 12 mo
Sprencel-Peck Unit #3HHZ42-255-33515	Marathon Oil EF LLC	Karnes, TXEagleville (Eagle Ford-2)	ActiveOil	11,428	Oct 8, 2026	—	—
Edward Roeder-James Gano SA1 #1HHZ42-123-35597	Marathon Oil EF LLC	De Witt, TXDe Witt (Eagle Ford Shale)	ActiveGas	13,509	Jul 8, 2025	—	—
Edward Roeder-Migura a SA1 #1HHZ42-123-35609	Marathon Oil EF LLC	De Witt, TXDe Witt (Eagle Ford Shale)	ActiveGas	13,550	Jun 30, 2025	—	—
Miller Ridout Mikkelson SA3 #3HHZ42-255-38265	Marathon Oil EF LLC	Karnes, TXEagleville (Eagle Ford-2)	ActiveOil	12,410	Jun 18, 2025	—	—
Miller-Ridout Unit #502HHZ42-255-38262	Marathon Oil EF LLC	Karnes, TXEagleville (Eagle Ford-2)	ActiveOil	12,386	May 5, 2025	—	—
Miller Ridout Mikkelson SA1 #1HHZ42-255-38261	Marathon Oil EF LLC	Karnes, TXEagleville (Eagle Ford-2)	ActiveOil	12,459	May 2, 2025	—	—
Griffin-Krueger SA1 #1HHZ42-013-36230	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	11,124	Apr 24, 2025	—	—
Griffin-Krueger SA2 #2HHZ42-013-36231	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	11,096	Apr 24, 2025	—	—
Griffin-Krueger SA3 #3HHZ42-013-36232	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	11,045	Apr 24, 2025	—	—
Griffin-Krueger SA4 #4HHZ42-013-36233	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	11,067	Apr 24, 2025	—	—
Tom Family Unit #2HHZ42-013-36219	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	10,721	Jan 23, 2025	—	—
MCS Foundation Unit #7HHZ42-013-36220	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	10,891	Jan 23, 2025	—	—
MCS Foundation Unit #8HHZ42-013-36221	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	10,901	Jan 23, 2025	—	—
MCS Foundation Unit #9HHZ42-013-36222	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	10,879	Jan 23, 2025	—	—
MCS Foundation-Tom Family Usw a #1HZ42-013-36223	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	10,906	Jan 23, 2025	—	—
Middle McCowen #133HRHZ42-013-36215	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	10,692	Dec 20, 2024	—	—
R May a-Schroeder Chapman SA1 #1HHZ42-013-36204	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	11,256	Nov 20, 2024	—	—
R May a-May Girls Chapman SA2 #2HHZ42-013-36205	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	11,302	Nov 20, 2024	—	—
Davis-Mensik SA1 #1HHZ42-255-38153	Marathon Oil EF LLC	Karnes, TXSugarkane (Eagle Ford)	ActiveGas	13,171	Nov 20, 2024	—	—
Davis-Alexander SA1 #1HHZ42-255-38154	Marathon Oil EF LLC	Karnes, TXSugarkane (Eagle Ford)	ActiveGas	13,201	Nov 20, 2024	—	—
R. May a #13HHZ42-013-36203	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	11,133	Oct 31, 2024	—	—
Best Bateman-Best Huth SA1 #1HHZ42-255-38164	Marathon Oil EF LLC	Karnes, TXEagleville (Eagle Ford-2)	ActiveOil	11,709	Oct 9, 2024	—	—
Middle McCowen #136HHZ42-013-36190	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	10,690	Sep 9, 2024	—	—
Middle McCowen #192HHZ42-013-36198	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	10,713	Sep 9, 2024	—	—
Ridley 01 #16HHZ42-255-38121	Marathon Oil EF LLC	Karnes, TXSugarkane (Eagle Ford)	ActiveOil	12,883	Aug 29, 2024	—	—
Middle McCowen #140HHZ42-013-36195	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	10,674	Aug 23, 2024	—	—
74 Ranch E #11HZ42-013-36200	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	10,390	Aug 23, 2024	—	—
Middle McCowen #139HHZ42-013-36188	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	10,660	Aug 22, 2024	—	—
Middle McCowen #197HHZ42-013-36194	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	10,357	Aug 22, 2024	—	—
Middle McCowen #137HHZ42-013-36196	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	10,643	Aug 22, 2024	—	—
Middle McCowen #191HHZ42-013-36197	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	10,652	Aug 22, 2024	—	—
Middle McCowen #133HHZ42-013-36199	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	PluggedOil	22,000	Aug 22, 2024	—	—
Middle McCowen #138HHZ42-013-36189	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	10,692	Aug 21, 2024	—	—
Middle McCowen #196HHZ42-013-36191	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	10,384	Aug 21, 2024	—	—
Middle McCowen #195HHZ42-013-36192	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	10,361	Aug 21, 2024	—	—
Middle McCowen #194HHZ42-013-36193	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	10,404	Aug 21, 2024	—	—
Elizondo 01 #07HHZ42-255-38099	Marathon Oil EF LLC	Karnes, TXSugarkane (Eagle Ford)	ActiveGas	13,303	Aug 6, 2024	—	—
Elizondo 01 #08HHZ42-255-38100	Marathon Oil EF LLC	Karnes, TXSugarkane (Eagle Ford)	ActiveGas	13,237	Aug 6, 2024	—	—
Elizondo 01 #09HHZ42-255-38101	Marathon Oil EF LLC	Karnes, TXSugarkane (Eagle Ford)	ActiveGas	13,280	Aug 6, 2024	—	—
Hierholzer Retzloff-McMahon SA3 #3HHZ42-013-36185	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	11,185	Aug 1, 2024	—	—
Hierholzer Retzloff-McMahon SA2 #2HHZ42-013-36186	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	11,167	Aug 1, 2024	—	—
Hierholzer Retzloff-McMahon SA1 #1HHZ42-013-36187	Marathon Oil EF LLC	Atascosa, TXEagleville (Eagle Ford-1)	ActiveOil	11,193	Aug 1, 2024	—	—
Ridley 01 #12HHZ42-255-38118	Marathon Oil EF LLC	Karnes, TXSugarkane (Eagle Ford)	ActiveOil	12,881	Jul 31, 2024	—	—
Ridley 01 #13HHZ42-255-38120	Marathon Oil EF LLC	Karnes, TXSugarkane (Eagle Ford)	ActiveOil	12,873	Jul 31, 2024	—	—
Kirk 01 #06HHZ42-255-38104	Marathon Oil EF LLC	Karnes, TXSugarkane (Eagle Ford)	ActiveGas	13,721	Jul 23, 2024	—	—
Kirk 01 #503HHZ42-255-38105	Marathon Oil EF LLC	Karnes, TXSugarkane (Eagle Ford)	ActiveGas	13,551	Jul 23, 2024	—	—
Kirk-Long SA1 #1HHZ42-255-38106	Marathon Oil EF LLC	Karnes, TXSugarkane (Eagle Ford)	ActiveGas	13,691	Jul 23, 2024	—	—
Kirk-Long SA2 #2HHZ42-255-38107	Marathon Oil EF LLC	Karnes, TXSugarkane (Eagle Ford)	ActiveGas	13,685	Jul 23, 2024	—	—
McCoy-Egbert-Carter Unit SA1 #1HHZ42-255-38093	Marathon Oil EF LLC	Karnes, TXEagleville (Eagle Ford-2)	ActiveOil	11,949	Jun 6, 2024	—	—
Pfeifer-Scheele Huth Unit a SA1 #1HHZ42-255-38080	Marathon Oil EF LLC	Karnes, TXEagleville (Eagle Ford-2)	ActiveOil	11,657	May 31, 2024	—	—

OIL IN BBL · GAS IN MCF · TWELVE MONTHS THROUGH THE STATE'S REPORTED-THROUGH MONTH · A DASH MEANS NO PRODUCTION BY WELL IS AVAILABLE FOR THE STATE

About this data

One row per API number from each state regulator's records, in one shared shape. Status and type are shown in the regulator's own words; the filters use one vocabulary. A well is tied to a formation through the field or pool it is completed in. Volumes appear where a state reports production by well, summed over the twelve months ending in that state's last reported month. Nothing is estimated.

Developers: this page as JSON is GET /v1/data/wells, documented in the API reference.