42-255-34446

PRODUCING Horizontal

MEDINA-JONAS UNIT A

KARNES County · District 2 · MARATHON OIL EF LLC · EAGLEVILLE (EAGLE FORD-2)

Permits

3

Max Depth

19,500 ft

First Permit

2014-12-29

Latest Activity

2014-12-29

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2017-03-21

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2011-11

Last Production

2026-07

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Formation Tops (10) Elevation 388 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YEGUA - DISPOSAL (Yegua)1,638 ft-1,250 ft
QUEEN CITY 3,653 ft-3,265 ft
REKLAW 3,988 ft-3,600 ft
CARRIZO 4,784 ft-4,396 ft
WILCOX - DISPOSAL (Wilcox)6,033 ft-5,645 ft
AUSTIN CHALK - H2S (Austin Chalk)11,125 ft-10,737 ft
EAGLE FORD - H2S (Eagle Ford)11,358 ft-10,970 ft
EDWARDS - H2S (Edwards)
FRIO - DISPOSAL (Frio)
SLIGO - H2S (Sligo)

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section
42-255-34444 MEDINA-JONAS UNIT A · MARATHON OIL EF LLC
0.0 mi
Yegua 1,638'Queen City 3,653'Reklaw 3,988'Carrizo 4,784'Wilcox 6,033'Austin Chalk 11,136'Eagle Ford 11,384'Frio Sligo Edwards
42-255-37030 MEDINA-JONAS UNIT A · MARATHON OIL EF LLC
0.3 mi
Yegua 1,112'Queen City 3,127'Reklaw 3,463'Carrizo 4,258'Wilcox 5,508'Austin Chalk 11,232'Eagle Ford 11,389'Frio Sligo Edwards
42-255-37031 MEDINA-JONAS UNIT A · MARATHON OIL EF LLC
0.3 mi
Yegua 1,112'Queen City 3,127'Reklaw 3,463'Carrizo 4,258'Wilcox 5,508'Austin Chalk 11,162'Eagle Ford 11,395'Frio Sligo Edwards
42-255-37032 MEDINA-JONAS A-SALGE-KINKLER SA · MARATHON OIL EF LLC
0.3 mi
Yegua 1,112'Queen City 3,127'Reklaw 3,463'Carrizo 4,258'Wilcox 5,508'Austin Chalk 11,177'Eagle Ford 11,416'Frio Sligo Edwards
42-255-37297 MEDINA-JONAS UNIT A · MARATHON OIL EF LLC
0.3 mi
Yegua 1,657'Queen City 3,673'Reklaw 4,008'Carrizo 4,803'Wilcox 5,653'Austin Chalk 11,142'Eagle Ford 11,379'Sligo Frio Edwards
42-255-37299 RODRIGUEZ-TRIAL UNIT · MARATHON OIL EF LLC
0.3 mi
Yegua 1,648'Queen City 3,661'Reklaw 3,995'Carrizo 4,788'Wilcox 5,995'Austin Chalk 11,119'Eagle Ford 11,339'Sligo Frio Edwards
42-255-37298 RODRIGUEZ-TRIAL UNIT · MARATHON OIL EF LLC
0.3 mi
Yegua 1,636'Queen City 3,650'Reklaw 3,984'Carrizo 4,777'Wilcox 6,024'Austin Chalk 11,109'Eagle Ford 11,321'Sligo Frio Edwards
42-255-35504 MEDINA-JONAS C-B SA · MARATHON OIL EF LLC
0.9 mi
Yegua 1,520'Queen City 3,535'Reklaw 3,871'Carrizo 4,666'Wilcox 5,916'Austin Chalk 10,971'Eagle Ford 11,204'Frio Sligo Edwards

Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).

Perforations (1)

IntervalType
11,471–17,817 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,750 ft1,602 sx
5.5"17,919 ft2,953 sx

Permit History (3)

Applications (3)

#801936 A MARATHON OIL EF LLC
received 2017-06-15
#801936 A MARATHON OIL EF LLC
received 2016-09-21
#801936 A MARATHON OIL EF LLC
received 2014-12-17

Records & Logs

1 completion filing on record · 1 with log images at RRC.

W-2/G-1 2017-05-19 log on file

Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.

Lat 28.892783
Lon -97.969759

Well Details

Well Number
3H
Max Depth
19,500 ft
Drill Type
Horizontal
County
KARNES
District
2
Completed
2017-03-21

Operator

Location
HOUSTON
P-5 Status
Active (filed 2025-09-26)
Cum Oil (all leases)
409,189,156 bbl
Cum Gas (all leases)
1,029,735,602 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits
3,173