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WELLS · TEXAS · ONE ROW PER API NUMBER

Marathon Oil EF LLC wells in Atascosa County

Every well on the Railroad Commission's schedule or with a drilling permit on file, newest permit first: who operates it, where it is, the field it is completed in, its permits, and the last month its lease reported.What an API number is →

A full API number opens the well. Anything else filters the list below.

543 wells match

ShowingAtascosa County Marathon Oil EF LLC Clear all

Texas reports production by lease, so a well carries no volumes of its own: "Last reported" is the last month the lease it is tied to reported. How Texas production is reported →

543 WELLS · PAGE 1 OF 11

These wells on a map →
WellOperatorCounty, fieldStatusDepth, ftPermitPermitsLast reported
Foushee-Wright Keathley SA5 #5HHZ42-013-36274Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)Permitted17,500May 6, 20262—
Foushee-Wright Keathley SA6 #6HHZ42-013-36275Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)Drilled17,500May 6, 20262—
Mauch-Wright Henke SA1 #1HHZ42-013-36272Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)Permitted17,500May 4, 20262—
Mauch-Wright Henke SA2 #2HHZ42-013-36273Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)Drilled17,500May 4, 20262—
Mauch-Wright-Ethridge SA2 #2HHZ42-013-36260Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)Permitted17,500Sep 30, 20251—
Mauch-Ethridge SA1 #1HHZ42-013-36259Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)Permitted17,500Sep 23, 20251—
Wright-Ethridge SA3 #3HHZ42-013-36261Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)Permitted17,500Sep 23, 20251—
Griffin-Krueger SA1 #1HHZ42-013-36230Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil11,124Apr 24, 20252Apr 2026
Griffin-Krueger SA2 #2HHZ42-013-36231Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil11,096Apr 24, 20251Apr 2026
Griffin-Krueger SA3 #3HHZ42-013-36232Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil11,045Apr 24, 20251Apr 2026
Griffin-Krueger SA4 #4HHZ42-013-36233Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil11,067Apr 24, 20251Apr 2026
Tom Family Unit #2HHZ42-013-36219Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,721Jan 23, 20251Apr 2026
MCS Foundation Unit #7HHZ42-013-36220Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,891Jan 23, 20251Apr 2026
MCS Foundation Unit #8HHZ42-013-36221Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,901Jan 23, 20251Apr 2026
MCS Foundation Unit #9HHZ42-013-36222Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,879Jan 23, 20251Apr 2026
MCS Foundation-Tom Family Usw a #1HZ42-013-36223Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,906Jan 23, 20252Apr 2026
Middle McCowen #133HRHZ42-013-36215Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,692Dec 20, 20241Apr 2026
R May a-Schroeder Chapman SA1 #1HHZ42-013-36204Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil11,256Nov 20, 20241Apr 2026
R May a-May Girls Chapman SA2 #2HHZ42-013-36205Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil11,302Nov 20, 20241Apr 2026
R. May a #13HHZ42-013-36203Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil11,133Oct 31, 20241Apr 2026
Middle McCowen #136HHZ42-013-36190Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,690Sep 9, 20241Apr 2026
Middle McCowen #192HHZ42-013-36198Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,713Sep 9, 20241Apr 2026
Middle McCowen #140HHZ42-013-36195Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,674Aug 23, 20241Apr 2026
74 Ranch E #11HZ42-013-36200Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,390Aug 23, 20241Apr 2026
Middle McCowen #139HHZ42-013-36188Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,660Aug 22, 20241Apr 2026
Middle McCowen #197HHZ42-013-36194Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,357Aug 22, 20241Apr 2026
Middle McCowen #137HHZ42-013-36196Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,643Aug 22, 20241Apr 2026
Middle McCowen #191HHZ42-013-36197Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,652Aug 22, 20241Apr 2026
Middle McCowen #133HHZ42-013-36199Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)PluggedOil22,000Aug 22, 20241Apr 2026
Middle McCowen #138HHZ42-013-36189Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,692Aug 21, 20241Apr 2026
Middle McCowen #196HHZ42-013-36191Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,384Aug 21, 20241Apr 2026
Middle McCowen #195HHZ42-013-36192Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,361Aug 21, 20241Apr 2026
Middle McCowen #194HHZ42-013-36193Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,404Aug 21, 20241Apr 2026
Hierholzer Retzloff-McMahon SA3 #3HHZ42-013-36185Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil11,185Aug 1, 20241Apr 2026
Hierholzer Retzloff-McMahon SA2 #2HHZ42-013-36186Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil11,167Aug 1, 20241Apr 2026
Hierholzer Retzloff-McMahon SA1 #1HHZ42-013-36187Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil11,193Aug 1, 20241Apr 2026
Foushee Henke SA1 #1HHZ42-013-36171Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)Not on schedule22,000Apr 29, 20241—
Foushee Henke SA2 #2HHZ42-013-36172Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)Not on schedule22,000Apr 29, 20241—
Foushee Henke SA3 #3HHZ42-013-36173Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)Not on schedule22,000Apr 29, 20241—
Tom-Smith Unit C #5HHZ42-013-35905Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,594Apr 24, 20243Apr 2026
Tom-Smith Unit C #6HHZ42-013-35906Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,573Apr 24, 20243Apr 2026
May Girls #4HHZ42-013-36134Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil11,103Feb 8, 20242Apr 2026
May Girls #5HHZ42-013-36135Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil11,078Feb 8, 20241Apr 2026
Retzloff-May-Tom SA1 #01HHZ42-013-36133Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil11,159Jan 26, 20241Apr 2026
Ethridge Unit a #3HHZ42-013-36130Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-2)ActiveOil11,228Jan 24, 20241Apr 2026
Ethridge Unit a #4HHZ42-013-36131Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-2)ActiveOil11,271Jan 24, 20243Apr 2026
Esse-Retzloff-May-Tom SA1 #01HHZ42-013-36132Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil11,101Jan 24, 20241Apr 2026
Middle McCowen #257HHZ42-013-36091Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,517Sep 27, 20231Apr 2026
Middle McCowen #259HHZ42-013-36092Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,547Sep 27, 20231Apr 2026
Middle McCowen #260HHZ42-013-36093Marathon Oil EF LLC AtascosaEagleville (Eagle Ford-1)ActiveOil10,805Sep 27, 20231Apr 2026

About this data

One row per API number: every well on the Railroad Commission wellbore schedule, and every API number a drilling permit names. Operator, field, status, and dates are the schedule's where it lists the well, the latest permit's otherwise. Permits on file counts every permit and amendment. Texas reports production by lease, so a well shows the last month its lease reported and no volumes. Nothing is estimated.

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