42-255-37123

PRODUCING Horizontal

SMITH-MELLICK UNIT

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

Permits

1

Max Depth

22,000 ft

First Permit

2021-03-02

Latest Activity

2021-03-02

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2021-12-09

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 466 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YEGUA - DISPOSAL (Yegua)1,327 ft-861 ft
QUEEN CITY 3,430 ft-2,964 ft
REKLAW 4,015 ft-3,549 ft
CARRIZO 4,410 ft-3,944 ft
WILCOX - DISPOSAL (Wilcox)5,973 ft-5,507 ft
AUSTIN CHALK - H2S (Austin Chalk)10,960 ft-10,494 ft
EAGLE FORD - H2S (Eagle Ford)11,182 ft-10,716 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
42-255-37124 SMITH-SCHEELE-FELIX-BUTLER SA · MARATHON OIL EF LLC
0.0 mi
Yegua 1,290'Queen City 3,390'Reklaw 3,973'Carrizo 4,325'Wilcox 5,927'Austin Chalk 11,032'Eagle Ford 11,166'Sligo Frio Edwards
42-255-37125 SMITH-MELLICK-SCHEELE SA4 · MARATHON OIL EF LLC
0.0 mi
Yegua 1,412'Queen City 3,523'Reklaw 4,116'Carrizo 4,475'Wilcox 6,096'Austin Chalk 10,944'Eagle Ford 11,165'Sligo Frio Edwards
42-255-37126 SMITH-MELLICK-SCHEELE SA5 · MARATHON OIL EF LLC
0.0 mi
Yegua 1,293'Queen City 3,393'Reklaw 3,977'Carrizo 4,330'Wilcox 5,933'Austin Chalk 10,953'Eagle Ford 11,169'Sligo Frio Edwards
42-255-37065 GIDEON CAZADORES HENKE UNIT · MARATHON OIL EF LLC
0.1 mi
Yegua 1,422'Queen City 3,477'Reklaw 4,021'Carrizo 4,478'Wilcox 5,800'Austin Chalk 10,973'Eagle Ford 11,188'Frio Sligo Edwards
42-255-37067 G. CAZADORES HENKE-O. WITTE SA6 · MARATHON OIL EF LLC
0.1 mi
Yegua 1,422'Queen City 3,477'Reklaw 4,021'Carrizo 4,478'Wilcox 5,800'Austin Chalk 10,981'Eagle Ford 11,193'Frio Edwards Sligo
42-255-37068 G. CAZADORES HENKE-O. WITTE SA7 · MARATHON OIL EF LLC
0.1 mi
Yegua 1,422'Queen City 3,477'Reklaw 4,021'Carrizo 4,478'Wilcox 5,800'Austin Chalk 10,989'Eagle Ford 11,201'Frio Sligo Edwards
42-255-37066 GIDEON CAZADORES HENKE-OXFORD SA · MARATHON OIL EF LLC
0.1 mi
Yegua 1,422'Queen City 3,477'Reklaw 4,021'Carrizo 4,478'Wilcox 5,800'Austin Chalk 10,950'Eagle Ford 11,154'Frio Sligo Edwards
42-255-37127 SMITH-MELLICK-SCHEELE SA6 · MARATHON OIL EF LLC
0.2 mi
Cook Mountain 2,375'Sparta 2,953'Queen City 3,211'Reklaw 3,811'Carrizo 4,383'Wilcox 4,438'Anacacho 10,807'Austin Chalk 10,941'Eagle Ford 11,170'Yegua Edwards Frio

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
11,415–15,428 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,558 ft1,604 sx
5.5"15,428 ft2,624 sx

Permit History (1)

Applications (1)

#867913 A MARATHON OIL EF LLC
received 2021-02-24

Records & Logs

3 completion filings on record · 3 with log images at RRC.

W-2/G-1 2022-01-06 log on file
W-2/G-1 2021-11-04 log on file
W-2/G-1 2021-07-12 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 28.857418
Lon -98.031297

Well Details

Well Number
2H
Max Depth
22,000 ft
Drill Type
Horizontal
County
KARNES
District
2
Completed
2021-12-09

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