42-255-37632

Final Completion Horizontal

ZAESKE-ECKOLS-FRANKE SA

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

Permits

1

Max Depth

22,000 ft

First Permit

2022-11-15

Latest Activity

2022-11-15

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2023-05-26

Shut-In

Plugged

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2023-02

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 (12) Elevation 328 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SPARTA 3,609 ft-3,281 ft
QUEEN CITY 3,913 ft-3,585 ft
REKLAW 4,454 ft-4,126 ft
CARRIZO 4,995 ft-4,667 ft
WILCOX - DISPOSAL (Wilcox)5,074 ft-4,746 ft
ANACACHO 11,817 ft-11,489 ft
AUSTIN CHALK - H2S (Austin Chalk)11,968 ft-11,640 ft
EAGLE FORD - H2S (Eagle Ford)12,157 ft-11,829 ft
EDWARDS - H2S (Edwards)
FRIO - DISPOSAL (Frio)
SLIGO - H2S (Sligo)
YEGUA - DISPOSAL (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
42-255-37631 CHAPMAN ROGERS-FRANKE SA · MARATHON OIL EF LLC
0.0 mi
Queen City 3,913'Reklaw 4,454'Carrizo 4,995'Wilcox 5,074'Austin Chalk 12,019'Eagle Ford 12,156'Yegua Sligo Frio Edwards
42-255-37630 CHAPMAN-FRANKE-MURPHY-KOTARA SA · MARATHON OIL EF LLC
0.0 mi
Queen City 3,913'Reklaw 4,454'Carrizo 4,995'Wilcox 5,074'Austin Chalk 11,951'Eagle Ford 12,149'Yegua Frio Edwards Sligo
42-255-36919 YOSKO BORGFELD-YOSKO UNIT SA · MARATHON OIL EF LLC
0.6 mi
Yegua 1,855'Queen City 3,835'Reklaw 4,375'Carrizo 4,925'Wilcox 5,055'Austin Chalk 11,897'Eagle Ford 12,079'Sligo Frio Edwards
42-255-36917 YOSKO BORGFELD UNIT · MARATHON OIL EF LLC
0.6 mi
Yegua 1,855'Queen City 3,835'Reklaw 4,375'Carrizo 4,925'Wilcox 5,055'Austin Chalk 11,737'Eagle Ford 12,076'Frio Sligo Edwards
42-255-36918 YOSKO BORGFELD UNIT · MARATHON OIL EF LLC
0.6 mi
Yegua 1,855'Queen City 3,835'Reklaw 4,375'Carrizo 4,925'Wilcox 5,055'Austin Chalk 11,878'Eagle Ford 11,931'Sligo Frio Edwards
42-255-36916 YOSKO BORGFELD UNIT · MARATHON OIL EF LLC
0.6 mi
Yegua 1,855'Queen City 3,835'Reklaw 4,375'Carrizo 4,925'Wilcox 5,055'Austin Chalk 11,864'Eagle Ford 12,048'Sligo Frio Edwards
42-255-36920 BRYSCH JONAS-YOSKO BORGFELD SA · MARATHON OIL EF LLC
0.6 mi
Yegua 1,855'Queen City 3,835'Reklaw 4,375'Carrizo 4,925'Wilcox 5,055'Austin Chalk 11,842'Eagle Ford 12,028'Sligo Frio Edwards
42-255-37871 FRANKE UNIT · DEVON ENERGY PRODUCTION CO, L.P.
0.8 mi
Frio 1,894'Yegua 2,881'Queen City 3,978'Reklaw 4,413'Carrizo 4,942'Wilcox 5,218'Austin Chalk 12,131'Eagle Ford 12,286'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
12,401–16,626 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,683 ft1,387 sx
6"16,626 ft2,639 sx

Permit History (1)

Applications (1)

#885210 A MARATHON OIL EF LLC
received 2022-10-25

Records & Logs

3 completion filings on record · 2 with log images at RRC.

W-2/G-1 2023-12-18 log on file
W-2/G-1 2023-07-21
W-2/G-1 2023-04-18 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 28.847605
Lon -97.936986

Well Details

Well Number
1H
Max Depth
22,000 ft
Drill Type
Horizontal
County
KARNES
District
2
Completed
2023-05-26

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