42-013-35839

PRODUCING Horizontal

R. MAY A

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

Permits

1

Max Depth

23,000 ft

First Permit

2021-05-03

Latest Activity

2021-05-03

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2022-08-10

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2012-06

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 (11) Elevation 353 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
QUEEN CITY 2,714 ft-2,361 ft
QUEEN CITY 2,741 ft-2,388 ft
REKLAW 3,280 ft-2,927 ft
CARRIZO 4,130 ft-3,777 ft
WILCOX - DISPOSAL (Wilcox)4,231 ft-3,878 ft
ANACACHO - H2S (Anacacho)10,748 ft-10,395 ft
AUSTIN CHALK - H2S, DISPOSAL (Austin Chalk)10,949 ft-10,596 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
42-013-35837 SCHROEDER-CHAPMAN UNIT · MARATHON OIL EF LLC
0.0 mi
Queen City 2,741'Reklaw 3,280'Carrizo 4,130'Wilcox 4,231'Anacacho 10,728'Austin Chalk 10,933'Escondido Bartosh Olmos Navarro
42-013-35838 R. MAY A · MARATHON OIL EF LLC
0.0 mi
Queen City 2,741'Reklaw 3,280'Carrizo 4,130'Wilcox 4,231'Anacacho 10,753'Austin Chalk 10,958'Olmos Escondido Bartosh Navarro
42-013-35836 SCHROEDER-CHAPMAN UNIT · MARATHON OIL EF LLC
0.0 mi
Queen City 2,741'Reklaw 3,280'Carrizo 4,130'Wilcox 4,231'Anacacho 10,741'Austin Chalk 10,951'Escondido Olmos Bartosh Navarro
42-013-36135 MAY GIRLS · MARATHON OIL EF LLC
0.6 mi
Queen City 2,725'Reklaw 3,437'Carrizo 4,095'Wilcox 4,200'Anacacho 10,654'Austin Chalk 10,858'Navarro Bartosh Escondido Olmos
42-013-36134 MAY GIRLS · MARATHON OIL EF LLC
0.6 mi
Queen City 2,725'Reklaw 3,437'Carrizo 4,095'Wilcox 4,200'Anacacho 10,658'Austin Chalk 10,860'Navarro Bartosh Escondido Olmos
42-013-36205 R MAY A-MAY GIRLS CHAPMAN SA2 · MARATHON OIL EF LLC
1.3 mi
Reklaw 3,274'Carrizo 3,913'Wilcox 4,006'Anacacho 10,399'Austin Chalk 10,599'Bartosh Escondido Olmos Queen City Navarro
42-013-36203 R. MAY A · MARATHON OIL EF LLC
1.3 mi
Queen City 2,494'Reklaw 3,274'Carrizo 3,913'Wilcox 4,006'Anacacho 10,469'Austin Chalk 10,678'Bartosh Escondido Olmos Navarro
42-013-36204 R MAY A-SCHROEDER CHAPMAN SA1 · MARATHON OIL EF LLC
1.3 mi
Queen City 2,494'Reklaw 3,274'Carrizo 3,913'Wilcox 4,006'Anacacho 10,471'Austin Chalk 10,680'Navarro Olmos Escondido Bartosh

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
11,477–18,379 ftPerforated

Casing (2)

SizeSet DepthCement
9.625"5,223 ft1,540 sx
6"18,379 ft2,927 sx

Permit History (1)

Applications (1)

#869444 A MARATHON OIL EF LLC
received 2021-04-27

Records & Logs

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

W-2/G-1 2022-09-14 log on file
W-2/G-1 2022-07-19 log on file
W-2/G-1 2022-05-05 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 28.701540
Lon -98.224542

Well Details

Well Number
15H
Max Depth
23,000 ft
Drill Type
Horizontal
County
ATASCOSA
District
1
Completed
2022-08-10

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