42-255-37499

PRODUCING Horizontal

BRYSCH-ADAMS UNIT

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

Permits

1

Max Depth

22,000 ft

First Permit

2022-05-13

Latest Activity

2022-05-13

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2022-11-22

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2012-04

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 383 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
QUEEN CITY 3,645 ft-3,262 ft
REKLAW 4,186 ft-3,803 ft
CARRIZO 4,689 ft-4,306 ft
WILCOX - DISPOSAL (Wilcox)4,793 ft-4,410 ft
AUSTIN CHALK - H2S (Austin Chalk)11,575 ft-11,192 ft
EAGLE FORD - H2S (Eagle Ford)11,794 ft-11,411 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
42-255-37498 BRYSCH-ADAMS UNIT · MARATHON OIL EF LLC
0.0 mi
Queen City 3,645'Reklaw 4,186'Carrizo 4,689'Wilcox 4,793'Austin Chalk 11,598'Eagle Ford 11,816'Yegua Sligo Frio Edwards
42-255-37500 BRYSCH ADAMS-BRYSCH JONAS SA · MARATHON OIL EF LLC
0.0 mi
Queen City 3,645'Reklaw 4,186'Carrizo 4,689'Wilcox 4,793'Austin Chalk 11,626'Eagle Ford 11,828'Yegua Frio Edwards Sligo
42-255-37501 BRYSCH JONAS C-B SA · MARATHON OIL EF LLC
0.0 mi
Queen City 3,645'Reklaw 4,186'Carrizo 4,689'Wilcox 4,793'Austin Chalk 11,657'Eagle Ford 11,861'Frio Yegua Sligo Edwards
42-255-36380 ADAMS-TIPTON UNIT · MARATHON OIL EF LLC
0.5 mi
Queen City 379'Yegua 1,672'Queen City 3,796'Reklaw 4,293'Carrizo 4,931'Wilcox 6,246'Austin Chalk 11,560'Eagle Ford 11,776'Frio Sligo Edwards
42-255-36382 ADAMS-TIPTON UNIT · MARATHON OIL EF LLC
0.5 mi
Yegua 1,672'Queen City 3,796'Reklaw 4,293'Carrizo 4,931'Wilcox 6,246'Austin Chalk 11,550'Eagle Ford 11,755'Sligo Frio Edwards
42-255-36381 ADAMS-TIPTON UNIT · MARATHON OIL EF LLC
0.5 mi
Yegua 1,672'Queen City 3,796'Reklaw 4,293'Carrizo 4,931'Wilcox 6,246'Austin Chalk 11,539'Eagle Ford 11,749'Sligo Frio Edwards
42-255-36406 HOLLAND BROWN-ADAMS TIPTON PSA · MARATHON OIL EF LLC
0.5 mi
Yegua 1,672'Queen City 3,796'Reklaw 4,293'Carrizo 4,931'Wilcox 6,246'Austin Chalk 11,541'Eagle Ford 11,744'Frio Sligo Edwards
42-255-37957 TIPTON-JONAS UNIT · MARATHON OIL EF LLC
0.5 mi
Queen City 2,740'Queen City 3,644'Reklaw 4,205'Carrizo 4,710'Wilcox 4,815'Anacacho 11,471'Austin Chalk 11,589'Eagle Ford 11,786'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
12,069–19,210 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,930 ft1,453 sx
6"19,210 ft3,034 sx

Permit History (1)

Applications (1)

#879866 A MARATHON OIL EF LLC
received 2022-05-09

Records & Logs

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

W-2/G-1 2023-03-23 log on file
W-2/G-1 2022-10-21 log on file
W-2/G-1 2022-07-29 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 28.858524
Lon -97.970369

Well Details

Well Number
502H
Max Depth
22,000 ft
Drill Type
Horizontal
County
KARNES
District
2
Completed
2022-11-22

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