42-013-35859

PRODUCING Horizontal

TOM-SMITH UNIT C

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

Permits

1

Max Depth

22,000 ft

First Permit

2021-07-02

Latest Activity

2021-07-02

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2022-04-04

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2021-09

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 (12) Elevation 292 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
AUSTIN CHALK - H2S, DISPOSAL (Austin Chalk)1,006 ft-714 ft
QUEEN CITY 2,214 ft-1,922 ft
REKLAW 2,874 ft-2,582 ft
CARRIZO 3,609 ft-3,317 ft
WILCOX - DISPOSAL (Wilcox)6,724 ft-6,432 ft
ANACACHO - H2S (Anacacho)9,833 ft-9,541 ft
AUSTIN CHALK - H2S, DISPOSAL (Austin Chalk)10,006 ft-9,714 ft
EAGLE FORD - H2S (Eagle Ford)10,273 ft-9,981 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 ↗

Perforations (1)

IntervalType
10,742–17,887 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"4,777 ft1,393 sx
5.5"17,888 ft2,875 sx

Permit History (1)

Applications (1)

#870865 A MARATHON OIL EF LLC
received 2021-06-29

Records & Logs

3 completion filings on record · 2 with log images at RRC.

W-2/G-1 2022-05-19 log on file
W-2/G-1 2022-02-08
W-2/G-1 2021-09-24 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.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in ATASCOSA County.

Well Details

Well Number
7H
Max Depth
22,000 ft
Drill Type
Horizontal
County
ATASCOSA
District
1
Completed
2022-04-04

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