42-177-34502

PRODUCING Horizontal

BILSKY-CHUMCHAL SA3

GONZALES County · District 1 · MARATHON OIL EF LLC · EAGLEVILLE (EAGLE FORD-1)

Permits

1

Max Depth

24,000 ft

First Permit

2022-06-03

Latest Activity

2022-06-03

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2023-03-20

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2022-08

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 342 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
COOK MOUNTAIN 2,467 ft-2,125 ft
SPARTA 3,207 ft-2,865 ft
REKLAW 3,678 ft-3,336 ft
CARRIZO 4,524 ft-4,182 ft
WILCOX - DISPOSAL (Wilcox)5,580 ft-5,238 ft
EAGLE FORD - H2S (Eagle Ford)11,698 ft-11,356 ft
AUSTIN CHALK - H2S (Austin Chalk)11,806 ft-11,464 ft
BUDA - H2S, DISPOSAL (Buda)
EDWARDS - H2S (Edwards)
NAVARRO

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
42-177-34501 BILSKY-CHUMCHAL SA2 · MARATHON OIL EF LLC
0.0 mi
Cook Mountain 2,464'Queen City 3,509'Reklaw 3,711'Carrizo 4,566'Wilcox 5,665'Midway 8,787'Olmos 9,939'Austin Chalk 11,064'Eagle Ford 11,692'Edwards Buda Navarro
42-177-34500 BILSKY-CHUMCHAL SA1 · MARATHON OIL EF LLC
0.0 mi
Cook Mountain 2,459'Reklaw 3,687'Carrizo 4,582'Wilcox 5,654'Olmos 9,939'Austin Chalk 11,068'Eagle Ford 11,682'Navarro Edwards Buda
42-177-34503 BILSKY-BILSKY-CHUMCHAL SA · MARATHON OIL EF LLC
0.0 mi
Reklaw 3,697'Carrizo 4,594'Wilcox 5,685'Austin Chalk 11,063'Eagle Ford 11,677'Navarro Buda Edwards
42-177-34255 NICHOLS UNIT · EOG RESOURCES, INC.
0.4 mi
Reklaw 4,188'Wilcox 4,525'Carrizo 4,677'Navarro 9,540'Anacacho 10,860'Austin Chalk 11,218'Eagle Ford 11,752'Buda Austin Chalk Wilcox Navarro Eagle Ford +3 more
42-177-34257 ANTARCTIC A · EOG RESOURCES, INC.
0.4 mi
Reklaw 4,272'Wilcox 4,503'Carrizo 4,658'Navarro 9,526'Anacacho 10,904'Austin Chalk 11,214'Eagle Ford 11,764'Buda Edwards
42-177-34256 NICHOLS UNIT · EOG RESOURCES, INC.
0.4 mi
Reklaw 4,271'Wilcox 4,502'Carrizo 4,657'Navarro 9,513'Anacacho 10,847'Austin Chalk 11,192'Eagle Ford 11,732'Carrizo Austin Chalk Navarro Wilcox Edwards +3 more
42-177-34387 BILSKY UNIT · MARATHON OIL EF LLC
0.5 mi
Reklaw 3,967'Wilcox 4,527'Austin Chalk 10,995'Eagle Ford 11,619'Edwards Buda Carrizo Navarro
42-177-34388 BILSKY UNIT · MARATHON OIL EF LLC
0.5 mi
Reklaw 3,967'Wilcox 4,527'Austin Chalk 11,003'Eagle Ford 11,609'Edwards Buda Carrizo Navarro

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
12,026–19,286 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,115 ft742 sx
9.625"9,143 ft1,763 sx
6"19,286 ft3,218 sx

Permit History (1)

Applications (1)

#880038 A MARATHON OIL EF LLC
received 2022-05-11

Records & Logs

4 completion filings on record · 4 with log images at RRC.

W-2/G-1 2023-04-05 log on file
W-2/G-1 2023-02-23 log on file
W-2/G-1 2022-11-11 log on file
W-2/G-1 2022-09-09 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 29.415223
Lon -97.254408

Well Details

Well Number
3H
Max Depth
24,000 ft
Drill Type
Horizontal
County
GONZALES
District
1
Completed
2023-03-20

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