42-255-36962

PRODUCING Horizontal

CARTER-HOLM-YANTA SA

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

Permits

1

Max Depth

26,000 ft

First Permit

2020-09-08

Latest Activity

2020-09-08

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2021-05-25

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2020-10

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 335 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YEGUA - DISPOSAL (Yegua)1,887 ft-1,552 ft
QUEEN CITY 3,872 ft-3,537 ft
REKLAW 3,937 ft-3,602 ft
CARRIZO 4,937 ft-4,602 ft
WILCOX - DISPOSAL (Wilcox)4,992 ft-4,657 ft
AUSTIN CHALK - H2S (Austin Chalk)11,703 ft-11,368 ft
EAGLE FORD - H2S (Eagle Ford)11,930 ft-11,595 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
42-255-36961 EGBERT-CARTER-HOLM SA · MARATHON OIL EF LLC
0.0 mi
Yegua 1,887'Queen City 3,872'Reklaw 3,937'Carrizo 4,937'Wilcox 4,992'Wilcox 4,993'Austin Chalk 11,628'Eagle Ford 11,828'Frio Sligo Edwards
42-255-37416 EGBERT UNIT · MARATHON OIL EF LLC
0.7 mi
Yegua 1,955'Queen City 3,959'Reklaw 4,432'Carrizo 5,039'Wilcox 6,175'Austin Chalk 11,838'Eagle Ford 11,945'Frio Sligo Edwards
42-255-37415 EGBERT UNIT · MARATHON OIL EF LLC
0.7 mi
Yegua 1,955'Queen City 3,959'Reklaw 4,432'Carrizo 5,039'Wilcox 5,089'Austin Chalk 11,820'Eagle Ford 11,994'Sligo Frio Edwards
42-255-37414 EGBERT UNIT · MARATHON OIL EF LLC
0.7 mi
Yegua 1,955'Queen City 3,959'Reklaw 4,432'Carrizo 5,039'Wilcox 5,089'Austin Chalk 11,832'Eagle Ford 12,005'Sligo Frio Edwards
42-255-32804 MCCOY-EGBERT UNIT · MARATHON OIL EF LLC
1.0 mi
Anacacho 11,581'Austin Chalk 11,723'Eagle Ford 11,916'
42-255-37249 SALGE UNIT · MARATHON OIL EF LLC
1.1 mi
Yegua 1,964'Queen City 3,965'Reklaw 4,444'Carrizo 5,042'Wilcox 7,318'Austin Chalk 11,867'Eagle Ford 11,980'Frio Sligo Edwards
42-255-35495 KARNES CITY NE NW ALC · MARATHON OIL EF LLC
1.1 mi
Yegua 1,810'Queen City 3,981'Reklaw 4,415'Carrizo 4,964'Wilcox 6,278'Austin Chalk 11,764'Eagle Ford 11,997'Sligo Frio Edwards
42-255-35490 KARNES CITY NE UNIT · MARATHON OIL EF LLC
1.1 mi
Yegua 1,810'Queen City 3,981'Reklaw 4,415'Carrizo 4,964'Wilcox 6,278'Austin Chalk 11,772'Eagle Ford 12,005'Sligo Frio 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
12,279–21,040 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,752 ft1,662 sx
5.5"21,040 ft3,870 sx

Permit History (1)

Applications (1)

#864483 A MARATHON OIL EF LLC
received 2020-07-30

Records & Logs

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

W-2/G-1 2021-06-25 log on file
W-2/G-1 2021-01-29 log on file
W-2/G-1 2020-11-09 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 28.896611
Lon -97.913436

Well Details

Well Number
1H
Max Depth
26,000 ft
Drill Type
Horizontal
County
KARNES
District
2
Completed
2021-05-25

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