42-123-35348

PRODUCING Horizontal

KOOPMAN 01-L 01-S 01-A 01 SA2

DE WITT County · District 2 · MARATHON OIL EF LLC · DE WITT (EAGLE FORD SHALE)

Permits

1

Max Depth

22,000 ft

First Permit

2023-12-08

Latest Activity

2023-12-08

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2024-04-10

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2024-02

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 (13) Elevation 370 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
QUEEN CITY 5,504 ft-5,134 ft
REKLAW 5,852 ft-5,482 ft
WILCOX 6,108 ft-5,738 ft
YEGUA 6,108 ft-5,738 ft
ANACACHO 12,793 ft-12,423 ft
WILCOX 12,793 ft-12,423 ft
AUSTIN CHALK 12,985 ft-12,615 ft
EAGLE FORD 13,316 ft-12,946 ft
CATAHOULA
EDWARDS - H2S (Edwards)
FRIO
VICKSBURG
YEGUA

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
42-123-35347 KOOPMAN 01-L 01-S 01-A 01 SA1 · MARATHON OIL EF LLC
0.0 mi
Wilcox 618'Queen City 5,504'Reklaw 5,852'Wilcox 6,108'Anacacho 12,799'Austin Chalk 12,990'Eagle Ford 13,322'Vicksburg Edwards Yegua Frio Catahoula
42-123-34973 KOOPMAN 01 - LANG 01 H · ENSIGN OPERATING LLC
0.1 mi
Wilcox 6,214'Austin Chalk 13,000'Eagle Ford 13,333'Edwards Frio Catahoula Yegua Vicksburg
42-123-34971 KOOPMAN 01 - LANG 01 F · ENSIGN OPERATING LLC
0.1 mi
Wilcox 6,214'Austin Chalk 13,023'Eagle Ford 13,356'Frio Edwards Vicksburg Catahoula Yegua
42-123-34968 KOOPMAN 01 - LANG 01 D · ENSIGN OPERATING LLC
0.1 mi
Wilcox 6,223'Austin Chalk 13,027'Eagle Ford 13,355'Catahoula Edwards Frio Vicksburg Yegua
42-123-34369 KOOPMAN-LANG (A) 01 · PIONEER NATURAL RES. USA, INC.
1.4 mi
Frio 1,189'Vicksburg 2,509'Yegua 3,619'Wilcox 6,340'Austin Chalk 13,250'Eagle Ford 13,544'Catahoula Edwards
42-123-34687 ADIX UNIT A · BURLINGTON RESOURCES O & G CO LP
1.5 mi
Yegua 2,837'Wilcox 5,945'Austin Chalk 12,759'Vicksburg Edwards Catahoula Eagle Ford Frio
42-123-34701 ADIX UNIT A · BURLINGTON RESOURCES O & G CO LP
1.5 mi
Yegua 2,836'Wilcox 5,947'Austin Chalk 12,702'Eagle Ford 13,040'Catahoula Frio Vicksburg Edwards
42-123-34700 ADIX UNIT A · BURLINGTON RESOURCES O & G CO LP
1.5 mi
Yegua 2,835'Wilcox 5,948'Austin Chalk 12,831'Eagle Ford 13,304'Vicksburg Frio Catahoula 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
13,543–22,359 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,815 ft1,360 sx
5.5"22,359 ft3,440 sx

Permit History (1)

Applications (1)

#895555 A MARATHON OIL EF LLC
received 2023-11-28

Records & Logs

3 completion filings on record · 1 with log images at RRC.

W-2/G-1 2024-07-12
W-2/G-1 2024-05-24
W-2/G-1 2024-04-10 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 29.038559
Lon -97.556449

Well Details

Well Number
02H
Max Depth
22,000 ft
Drill Type
Horizontal
County
DE WITT
District
2
Completed
2024-04-10

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