42-255-37415

PRODUCING Horizontal

EGBERT UNIT

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

Permits

1

Max Depth

22,000 ft

First Permit

2022-02-28

Latest Activity

2022-02-28

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2022-11-10

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2012-03

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 (10) Elevation 390 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YEGUA - DISPOSAL (Yegua)1,955 ft-1,565 ft
QUEEN CITY 3,959 ft-3,569 ft
REKLAW 4,432 ft-4,042 ft
CARRIZO 5,039 ft-4,649 ft
WILCOX - DISPOSAL (Wilcox)5,089 ft-4,699 ft
AUSTIN CHALK - H2S (Austin Chalk)11,820 ft-11,430 ft
EAGLE FORD - H2S (Eagle Ford)11,994 ft-11,604 ft
EDWARDS - H2S (Edwards)
FRIO - DISPOSAL (Frio)
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
42-255-37416 EGBERT UNIT · MARATHON OIL EF LLC
0.0 mi
Yegua 1,955'Queen City 3,959'Reklaw 4,432'Carrizo 5,039'Wilcox 6,175'Austin Chalk 11,838'Eagle Ford 11,945'Sligo Frio Edwards
42-255-37414 EGBERT UNIT · MARATHON OIL EF LLC
0.0 mi
Yegua 1,955'Queen City 3,959'Reklaw 4,432'Carrizo 5,039'Wilcox 5,089'Austin Chalk 11,832'Eagle Ford 12,005'Sligo Frio Edwards
42-255-37249 SALGE UNIT · MARATHON OIL EF LLC
0.4 mi
Yegua 1,964'Queen City 3,965'Reklaw 4,444'Carrizo 5,042'Wilcox 7,318'Austin Chalk 11,867'Eagle Ford 11,980'Sligo Frio Edwards
42-255-32804 MCCOY-EGBERT UNIT · MARATHON OIL EF LLC
0.4 mi
Anacacho 11,581'Austin Chalk 11,723'Eagle Ford 11,916'
42-255-36962 CARTER-HOLM-YANTA SA · MARATHON OIL EF LLC
0.7 mi
Yegua 1,887'Queen City 3,872'Reklaw 3,937'Carrizo 4,937'Wilcox 4,992'Austin Chalk 11,703'Eagle Ford 11,930'Sligo Frio Edwards
42-255-36961 EGBERT-CARTER-HOLM SA · MARATHON OIL EF LLC
0.7 mi
Yegua 1,887'Queen City 3,872'Reklaw 3,937'Carrizo 4,937'Wilcox 4,992'Wilcox 4,993'Austin Chalk 11,628'Eagle Ford 11,828'Frio Sligo Edwards
42-255-38093 MCCOY-EGBERT UNIT · MARATHON OIL EF LLC
1.2 mi
Reklaw 3,884'Carrizo 4,693'Wilcox 4,834'Austin Chalk 11,393'Eagle Ford 11,633'Edwards Sligo Frio Queen City Yegua
42-255-38076 MCCOY-EGBERT UNIT · MARATHON OIL EF LLC
1.2 mi
Reklaw 3,884'Carrizo 4,693'Austin Chalk 11,414'Eagle Ford 11,642'Frio Queen City Yegua Wilcox Edwards Sligo

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
12,359–16,236 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,714 ft1,670 sx
6"16,236 ft2,457 sx

Permit History (1)

Applications (1)

#877300 A MARATHON OIL EF LLC
received 2022-02-22

Records & Logs

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

W-2/G-1 2023-03-23 log on file
W-2/G-1 2022-10-03
W-2/G-1 2022-06-02 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 28.887335
Lon -97.918006

Well Details

Well Number
502H
Max Depth
22,000 ft
Drill Type
Horizontal
County
KARNES
District
2
Completed
2022-11-10

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