LEASES · PDQ LEASE REPORTS

Leases reported by Marathon Oil EF LLC

Oil is reported by lease, not by well. Every lease with a production report, with its reporting operator, field, well count, and lifetime volumes. Oil includes condensate from gas leases and gas includes casinghead gas from oil leases, as the RRC totals them. How production is reported →

143 LEASES · PAGE 1 OF 3

LeaseOperatorFieldCountyWellsOil, bblGas, mcfReported
Middle McCowen O-1-15638Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa12530.4M24.8MSep 2011 – Apr 2026
Guajillo East O-1-17741Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa6110.9M14.6MJun 2014 – Apr 2026
R. May B O-1-16361Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa285.76M7.27MSep 2012 – Apr 2026
R. May A O-1-16012Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa142.4M2.74MJun 2012 – Apr 2026
May-Chapman O-1-16009Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa92.11M3.24MJun 2012 – Apr 2026
Guajillo West O-1-19097Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa92.03M4.29MJul 2017 – Apr 2026
74 Ranch Unit S3 O-1-20608Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa61.81M1.53MAug 2022 – Apr 2026
74 Ranch Unit S2 O-1-20617Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa51.55M1.24MSep 2022 – Apr 2026
Guajillo Unit 8 South O-1-19278Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa51.5M2.95MDec 2017 – Apr 2026
74 Ranch Special Unit East O-1-17193Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa51.48M1.92MOct 2013 – Apr 2026
Tom-Smith Unit A O-1-17689Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa61.43M1.75MOct 2014 – Apr 2026
Wilhelm Smith Unit B O-2-10530Marathon Oil EF LLC Eagleville (Eagle Ford-2)Atascosa61.38M1.57MMay 2013 – Apr 2026
Guajillo Unit 7 South O-1-19095Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa51.29M2.1MJul 2017 – Apr 2026
74 Ranch Unit S1 O-1-20450Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa51.29M1.05MAug 2021 – Apr 2026
Heard Bower West Unit O-1-15760Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa91.26M1.48MSep 2011 – Apr 2026
Guajillo Unit 9 North O-1-18235Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa41.25M1.37MJan 2015 – Apr 2026
74 Ranch-Guajillo Unit B O-1-19590Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa51.24M1.86MSep 2019 – Apr 2026
Guajillo Unit 16 North O-1-19500Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa41.23M1.5MApr 2019 – Apr 2026
Tom-Smith Unit B O-1-18809Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa71.23M1.06MMay 2021 – Apr 2026
Esse-Smith Ranch Unit A O-1-15650Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa51.22M1.81MAug 2011 – Apr 2026
Gaenzel O-1-16725Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa61.21M847KJun 2013 – Apr 2026
Guajillo Unit 8 North O-1-19403Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa51.14M1.51MAug 2018 – Apr 2026
Henke-Wilhelm Unit A O-1-15857Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa71.12M1.35MMar 2012 – Apr 2026
Esse-Smith Ranch Unit B O-1-15670Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa51.05M1.48MAug 2011 – Apr 2026
Guajillo Unit 15 South O-2-12265Marathon Oil EF LLC Eagleville (Eagle Ford-2)Atascosa51.03M1.02MJul 2022 – Apr 2026
Heard Bower Central Unit O-1-15822Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa7998K1.36MSep 2011 – Apr 2026
Guajillo Unit 9 South O-2-11231Marathon Oil EF LLC Eagleville (Eagle Ford-2)Atascosa4984K1.35MDec 2015 – Apr 2026
May Girls O-1-16413Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa5972K1.06MJan 2013 – Apr 2026
74 Ranch-Guajillo Unit C O-1-20637Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa5945K947KSep 2022 – Apr 2026
Giese-Henke Unit O-1-15913Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa5929K1.36MMay 2012 – Oct 2025
Henke Unit B O-1-15598Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa4919K1.49MMay 2011 – Apr 2026
Chapman Rothe Unit O-1-15604Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa6872K1.2MMay 2011 – Apr 2026
Henke Unit A O-1-15596Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa5861K1.31MMay 2011 – Apr 2026
Wilhelm-Smith Unit A O-1-16354Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa4853K948KDec 2012 – Apr 2026
Guajillo Unit 16 South O-1-18907Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa4835K1.47MJan 2017 – Apr 2026
Giese Unit O-1-15848Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa5814K809KMar 2012 – Apr 2026
Mauch Unit O-1-15455Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa4803K1.06MDec 2010 – Apr 2026
Schroeder-Chapman Unit O-1-15555Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa5795K1.3MJul 2011 – Apr 2026
Wright-Henke Unit O-1-17021Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa5764K1.17MJul 2013 – Oct 2023
74 Ranch-Guajillo Unit D O-1-20579Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa4753K707KAug 2022 – Apr 2026
Guajillo Unit 13 South O-1-20460Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa4749K1.02MNov 2021 – Apr 2026
Heard Bower East Unit O-1-15799Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa6743K895KNov 2011 – Apr 2026
Ethridge Unit A O-2-9715Marathon Oil EF LLC Eagleville (Eagle Ford-2)Atascosa4680K1.36MSep 2011 – Apr 2026
Tom-Smith Unit C O-1-20500Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa5661K527KJan 2022 – Apr 2026
Deatley-Hollub Unit O-1-15673Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa5651K831KNov 2011 – Mar 2026
Chapman Pfeil Unit O-1-15659Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa3534K784KMay 2011 – Jul 2025
Guajillo Unit 14 South O-1-20461Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa4486K564KNov 2021 – Apr 2026
May Girls-Chapman Unit O-2-10641Marathon Oil EF LLC Eagleville (Eagle Ford-2)Atascosa4474K730KNov 2013 – Dec 2025
Mauch Tom Krueger-Ethridge SA O-1-21033Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa1399K737KApr 2023 – Apr 2026
MCS Foundation Unit O-1-21791Marathon Oil EF LLC Eagleville (Eagle Ford-1)Atascosa3384K413KJul 2025 – Apr 2026

About this data

Lease summaries from the RRC PDQ production dump: lifetime oil, gas, and casinghead, well count from completion reports, and the first and last month with a report. Lease reports leave the county blank; the county shown is the one the lease's completed wells are in, rebuilt nightly.

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