42-013-35824

Final Completion Horizontal

74-ATASCOSA SA 3

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

Permits

1

Max Depth

22,000 ft

First Permit

2021-01-15

Latest Activity

2021-01-15

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2021-10-23

Shut-In

Plugged

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2021-03

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 (14) Elevation 284 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
QUEEN CITY 581 ft-297 ft
ANACACHO - H2S (Anacacho)1,016 ft-732 ft
QUEEN CITY 2,528 ft-2,244 ft
REKLAW 2,528 ft-2,244 ft
BARTOSH 3,159 ft-2,875 ft
REKLAW 3,159 ft-2,875 ft
CARRIZO 3,931 ft-3,647 ft
WILCOX - DISPOSAL (Wilcox)4,019 ft-3,735 ft
ANACACHO - H2S (Anacacho)10,516 ft-10,232 ft
AUSTIN CHALK - H2S, DISPOSAL (Austin Chalk)10,763 ft-10,479 ft
BARTOSH
ESCONDIDO - H2S, DISPOSAL (Escondido)
NAVARRO - H2S (Navarro)
OLMOS - DISPOSAL (Olmos)

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
42-013-35823 74-ATASCOSA SA 2 · MARATHON OIL EF LLC
0.0 mi
Queen City 2,528'Reklaw 3,159'Carrizo 3,931'Wilcox 4,019'Anacacho 10,504'Austin Chalk 10,757'Escondido Bartosh Olmos Navarro
42-013-35821 74-ATASCOSA SA 1 · MARATHON OIL EF LLC
0.0 mi
Queen City 2,528'Reklaw 3,159'Carrizo 3,931'Wilcox 4,019'Anacacho 10,513'Austin Chalk 10,762'Olmos Escondido Bartosh Navarro
42-013-35763 74 RANCH UNIT S1 · MARATHON OIL EF LLC
0.4 mi
Queen City 1,649'Reklaw 2,931'Carrizo 3,848'Wilcox 5,379'Anacacho 10,563'Austin Chalk 10,795'Eagle Ford 10,902'Bartosh Escondido Olmos Navarro
42-013-35764 74 RANCH UNIT S1 · MARATHON OIL EF LLC
0.4 mi
Queen City 1,649'Reklaw 2,925'Carrizo 3,824'Wilcox 5,324'Anacacho 10,548'Austin Chalk 10,784'Navarro Escondido Olmos Bartosh
42-013-35765 74 RANCH UNIT S1 · MARATHON OIL EF LLC
0.4 mi
Queen City 1,654'Reklaw 2,929'Carrizo 3,249'Wilcox 3,829'Anacacho 10,547'Austin Chalk 10,775'Escondido Bartosh Olmos Navarro
42-013-35766 74 RANCH UNIT S1 · MARATHON OIL EF LLC
0.4 mi
Queen City 2,936'Reklaw 3,255'Carrizo 3,834'Wilcox 5,330'Anacacho 10,548'Austin Chalk 10,781'Escondido Bartosh Navarro Olmos
42-013-35767 74 RANCH UNIT S1 · MARATHON OIL EF LLC
0.4 mi
Queen City 3,050'Reklaw 3,229'Carrizo 3,930'Wilcox 5,434'Anacacho 10,548'Austin Chalk 10,782'Bartosh Escondido Olmos Navarro
42-013-35875 74 RANCH UNIT S2 · MARATHON OIL EF LLC
1.1 mi
Queen City 2,645'Reklaw 3,145'Carrizo 3,705'Wilcox 3,822'Anacacho 10,296'Austin Chalk 10,541'Olmos Escondido Bartosh 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
11,063–17,404 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,223 ft1,622 sx
5.5"17,425 ft3,132 sx

Permit History (1)

Applications (1)

#867001 A MARATHON OIL EF LLC
received 2021-01-12

Records & Logs

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

W-2/G-1 2025-09-18
W-2/G-1 2021-11-24 log on file
W-2/G-1 2021-11-24 log on file
W-2/G-1 2021-07-26
W-2/G-1 2021-04-05 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 28.651742
Lon -98.320517

Well Details

Well Number
3H
Max Depth
22,000 ft
Drill Type
Horizontal
County
ATASCOSA
District
1
Completed
2021-10-23

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