42-013-35764

PRODUCING Horizontal

74 RANCH UNIT S1

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

Permits

1

Max Depth

22,000 ft

First Permit

2019-10-09

Latest Activity

2019-10-09

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2021-10-14

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2021-04

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 249 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
QUEEN CITY 1,649 ft-1,400 ft
REKLAW 2,925 ft-2,676 ft
CARRIZO 3,824 ft-3,575 ft
WILCOX - DISPOSAL (Wilcox)5,324 ft-5,075 ft
ANACACHO - H2S (Anacacho)10,548 ft-10,299 ft
AUSTIN CHALK - H2S, DISPOSAL (Austin Chalk)10,784 ft-10,535 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
42-013-35765 74 RANCH UNIT S1 · MARATHON OIL EF LLC
0.0 mi
Queen City 1,654'Reklaw 2,929'Carrizo 3,249'Wilcox 3,829'Anacacho 10,547'Austin Chalk 10,775'Escondido Olmos Navarro Bartosh
42-013-35763 74 RANCH UNIT S1 · MARATHON OIL EF LLC
0.0 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'Navarro Bartosh Escondido Olmos
42-013-35766 74 RANCH UNIT S1 · MARATHON OIL EF LLC
0.0 mi
Queen City 2,936'Reklaw 3,255'Carrizo 3,834'Wilcox 5,330'Anacacho 10,548'Austin Chalk 10,781'Escondido Olmos Navarro Bartosh
42-013-35767 74 RANCH UNIT S1 · MARATHON OIL EF LLC
0.0 mi
Queen City 3,050'Reklaw 3,229'Carrizo 3,930'Wilcox 5,434'Anacacho 10,548'Austin Chalk 10,782'Navarro Bartosh Escondido Olmos
42-013-35824 74-ATASCOSA SA 3 · MARATHON OIL EF LLC
0.4 mi
Queen City 581'Anacacho 1,016'Queen City 2,528'Reklaw 2,528'Reklaw 3,159'Bartosh 3,159'Carrizo 3,931'Wilcox 4,019'Anacacho 10,516'Austin Chalk 10,763'Escondido Bartosh +2 more
42-013-35823 74-ATASCOSA SA 2 · MARATHON OIL EF LLC
0.4 mi
Queen City 2,528'Reklaw 3,159'Carrizo 3,931'Wilcox 4,019'Anacacho 10,504'Austin Chalk 10,757'Escondido Bartosh Navarro Olmos
42-013-35821 74-ATASCOSA SA 1 · MARATHON OIL EF LLC
0.4 mi
Queen City 2,528'Reklaw 3,159'Carrizo 3,931'Wilcox 4,019'Anacacho 10,513'Austin Chalk 10,762'Navarro Bartosh Escondido Olmos
42-013-35875 74 RANCH UNIT S2 · MARATHON OIL EF LLC
0.9 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
11,091–18,413 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,233 ft1,631 sx
5.5"18,433 ft3,293 sx

Permit History (1)

Applications (1)

#857724 A MARATHON OIL EF LLC
received 2019-10-03

Records & Logs

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

W-2/G-1 2021-11-17 log on file
W-2/G-1 2021-09-21 log on file
W-2/G-1 2021-07-09 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 28.654572
Lon -98.314633

Well Details

Well Number
2H
Max Depth
22,000 ft
Drill Type
Horizontal
County
ATASCOSA
District
1
Completed
2021-10-14

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