42-297-36417

PRODUCING Horizontal

GUAJILLO-STCH SA2

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

Permits

1

Max Depth

22,000 ft

First Permit

2024-02-28

Latest Activity

2024-02-28

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2024-06-07

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2024-06

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 235 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
QUEEN CITY 2,746 ft-2,511 ft
WILCOX 4,052 ft-3,817 ft
AUSTIN CHALK 10,934 ft-10,699 ft
EAGLE FORD - H2S (Eagle Ford)11,027 ft-10,792 ft
COOK MOUNTAIN
EDWARDS - H2S (Edwards)
FRIO - DISPOSAL (Frio)
HOCKLEY - DISPOSAL
JACKSON-YEGUA - DISPOSAL (Jackson)
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
42-297-36416 GUAJILLO-WHITSETT POSEY SA1 · MARATHON OIL EF LLC
0.0 mi
Queen City 2,746'Wilcox 4,052'Austin Chalk 10,928'Eagle Ford 11,020'Frio Cook Mountain Edwards HOCKLEY - DISPOSAL Sligo Jackson
42-297-36418 GUAJILLO-IDYLWOOD SA3 · MARATHON OIL EF LLC
0.0 mi
Queen City 2,746'Wilcox 4,052'Austin Chalk 10,931'Eagle Ford 11,021'Cook Mountain Edwards HOCKLEY - DISPOSAL Sligo Jackson Frio
42-297-36419 GUAJILLO-STCH SA4 · MARATHON OIL EF LLC
0.0 mi
Queen City 2,746'Wilcox 4,052'Eagle Ford 11,015'HOCKLEY - DISPOSAL Sligo Jackson Frio Cook Mountain Austin Chalk Edwards
42-297-35886 GUAJILLO WEST · MARATHON OIL EF LLC
0.1 mi
Queen City 2,950'Wilcox 5,240'Austin Chalk 10,910'Eagle Ford 11,029'HOCKLEY - DISPOSAL Edwards Cook Mountain Jackson Sligo Frio
42-297-35885 GUAJILLO WEST · MARATHON OIL EF LLC
0.1 mi
Queen City 2,950'Wilcox 5,240'Austin Chalk 10,911'Eagle Ford 11,030'Cook Mountain Frio Jackson Edwards Sligo HOCKLEY - DISPOSAL
42-297-35884 GUAJILLO WEST · MARATHON OIL EF LLC
0.1 mi
Queen City 2,950'Wilcox 5,240'Austin Chalk 10,928'Eagle Ford 11,048'Jackson Sligo HOCKLEY - DISPOSAL Frio Cook Mountain Edwards
42-297-35883 GUAJILLO WEST · MARATHON OIL EF LLC
0.1 mi
Queen City 2,950'Wilcox 5,240'Austin Chalk 10,927'Eagle Ford 11,043'Cook Mountain Sligo HOCKLEY - DISPOSAL Jackson Frio Edwards
42-297-35982 74 RANCH-GUAJILLO UNIT A AC · MARATHON OIL EF LLC
0.1 mi
Queen City 3,091'Wilcox 5,499'Austin Chalk 10,958'Austin Chalk 11,014'HOCKLEY - DISPOSAL Edwards Eagle Ford Cook Mountain Jackson Sligo Frio

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
11,485–19,757 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,652 ft1,375 sx
5.5"19,754 ft2,885 sx

Permit History (1)

Applications (1)

#897442 A MARATHON OIL EF LLC
received 2024-02-16

Records & Logs

1 completion filing on record · 1 with log images at RRC.

W-2/G-1 2024-09-26 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 28.636833
Lon -98.298164

Well Details

Well Number
2H
Max Depth
22,000 ft
Drill Type
Horizontal
County
LIVE OAK
District
2
Completed
2024-06-07

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