42-255-36373

PRODUCING Horizontal

CARTER UNIT

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

Permits

1

Max Depth

22,000 ft

First Permit

2019-03-05

Latest Activity

2019-03-05

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2020-01-14

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2011-06

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 348 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YEGUA - DISPOSAL (Yegua)1,625 ft-1,277 ft
QUEEN CITY 3,796 ft-3,448 ft
REKLAW 4,230 ft-3,882 ft
CARRIZO 4,779 ft-4,431 ft
WILCOX - DISPOSAL (Wilcox)6,093 ft-5,745 ft
AUSTIN CHALK - H2S (Austin Chalk)11,575 ft-11,227 ft
EAGLE FORD - H2S (Eagle Ford)11,789 ft-11,441 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
42-255-36374 CARTER UNIT · MARATHON OIL EF LLC
0.0 mi
Yegua 1,625'Queen City 3,796'Reklaw 4,230'Carrizo 4,779'Wilcox 6,093'Austin Chalk 11,591'Eagle Ford 11,817'Frio Sligo Edwards
42-255-36375 SPAHN-MIKKELSON UNIT · MARATHON OIL EF LLC
0.0 mi
Yegua 1,625'Queen City 3,796'Reklaw 4,230'Carrizo 4,779'Wilcox 6,093'Austin Chalk 11,545'Eagle Ford 11,768'Frio Sligo Edwards
42-255-36376 SPAHN-MIKKELSON UNIT · MARATHON OIL EF LLC
0.0 mi
Yegua 1,625'Queen City 3,796'Reklaw 4,230'Carrizo 4,779'Wilcox 6,093'Austin Chalk 11,560'Eagle Ford 11,801'Frio Sligo Edwards
42-255-36563 RSW-MIKKELSON-ROGERS SA · MARATHON OIL EF LLC
0.3 mi
Yegua 1,981'Queen City 3,996'Reklaw 4,332'Carrizo 5,127'Wilcox 6,377'Austin Chalk 11,438'Eagle Ford 11,661'Frio Sligo Edwards
42-255-36561 RIPPSTEIN-MIKKELSON UNIT · MARATHON OIL EF LLC
0.3 mi
Yegua 1,981'Queen City 3,996'Reklaw 4,332'Carrizo 5,127'Wilcox 6,377'Austin Chalk 11,459'Eagle Ford 11,684'Sligo Frio Edwards
42-255-36562 RIPPSTEIN-MIKKELSON UNIT · MARATHON OIL EF LLC
0.3 mi
Yegua 1,981'Queen City 3,996'Reklaw 4,332'Carrizo 5,127'Wilcox 6,377'Austin Chalk 11,442'Eagle Ford 11,666'Eagle Ford 11,667'Edwards Sligo Frio
42-255-38056 MIKKELSON-WITTE UNIT · MARATHON OIL EF LLC
0.7 mi
Queen City 3,927'Reklaw 4,430'Carrizo 4,950'Wilcox 6,222'Austin Chalk 11,734'Eagle Ford 11,960'Edwards Sligo Frio Yegua
42-255-38055 RIPPSTEIN MIKKELSON-WITTE SA1 · MARATHON OIL EF LLC
0.7 mi
Queen City 3,927'Reklaw 4,430'Carrizo 4,950'Wilcox 6,222'Austin Chalk 11,725'Eagle Ford 11,960'Yegua Frio Edwards Sligo

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
11,963–17,848 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,611 ft1,642 sx
5.5"17,957 ft2,877 sx

Permit History (1)

Applications (1)

#850513 A MARATHON OIL EF LLC
received 2019-02-28

Records & Logs

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

W-2/G-1 2020-01-29 log on file
W-2/G-1 2019-11-06 log on file
W-2/G-1 2019-08-02 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 28.883647
Lon -97.937508

Well Details

Well Number
6H
Max Depth
22,000 ft
Drill Type
Horizontal
County
KARNES
District
2
Completed
2020-01-14

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