← Wells

42-503-42413

INJECTION

EDWARDS 127

YOUNG County · District 9 · MAMMOTH OPERATING LLC · YOUNG COUNTY REGULAR

Permits

1

Max Depth

750 ft

First Permit

2018-11-29

Latest Activity

2018-11-29

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2019-02-28

Shut-In

—

Plugged

—

P-5 Org Status: Active

!

EWA / Permit operator mismatch

Scheduling: MAMMOTH OPERATING LLC ≠ Permit: J-LYN OIL CO.

Resolved via: production → MAMMOTH OPERATING LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Active UIC #000119043 permitted 2019-08-29

Permitted Volume

10 bbl/d

Max Pressure

225 psi

Injection Interval

452–460 ft

Injected (12mo)

3,375 bbl

Monthly injected volume (bbl, from H-10 filings through 2025-11-01)

Seismicity: no M2+ earthquakes recorded within 10 km in the last 24 months · TexNet catalog

Operator History

Chain of Custody

BROWN, EDMOND 1993-2002→ J-LYN OIL CO. 2003-2023→ MAMMOTH OPERATING LLC 2024-2026

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Oil
production & DCA →

Formation Tops (10) Elevation 1,126 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
GUNSIGHT LIME (Gunsight)440 ft+686 ft
ATOKA CONGLOMERATE (Atoka)——
BRYSON ——
BUTTRAM——
CADDO ——
CANYON ——
CISCO ——
HERRON CITY——
PALO PINTO ——
STRAWN ——

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
✓ 42-503-42422 M.L. MCCLURG · J-LYN OIL CO.
0.2 mi
Gunsight 450'Strawn —Bryson —Canyon —Atoka —Palo Pinto —HERRON CITY —Caddo —Cisco —BUTTRAM —
✓ 42-503-42426 M.L. MCCLURG · J-LYN OIL CO.
0.2 mi
Gunsight 460'
✓ 42-503-41763 BROWN HEIRS · J-LYN OIL CO.
0.7 mi
GUNSITE 560'Strawn 3,446'Caddo 4,306'Marble Falls —Strawn —Mississippian —Caddo —
✓ 42-503-42384 O.R. CARPENTER · TEXAS SHALLOW OIL & GAS, LLC
1.9 mi
Gunsight 555'HERRON CITY —BUTTRAM —Strawn —Bryson —Canyon —Atoka —Palo Pinto —Caddo —Cisco —
✓ 42-503-42382 O.R. CARPENTER · TEXAS SHALLOW OIL & GAS, LLC
2.0 mi
Gunsight 555'HERRON CITY —Strawn —Bryson —Canyon —Atoka —Palo Pinto —Caddo —BUTTRAM —Cisco —
✓ 42-503-84428 B.W. KING · WP OIL & GAS EXPLORATION LLC
2.1 mi
GUNSITE LIME 556'Strawn —Bryson —Canyon —Atoka —HERRON CITY —BUTTRAM —Palo Pinto —Gunsight —Caddo —Cisco —
✓ 42-503-42429 O.R. CARPENTER · TEXAS SHALLOW OIL & GAS, LLC
2.1 mi
Gunsight 550'Canyon —BUTTRAM —HERRON CITY —Strawn —Bryson —Atoka —Palo Pinto —Caddo —Cisco —
✓ 42-503-42433 LOFTIN, W.P. -A- · THREE P OPERATING CO.,GP, L.L.C.
2.2 mi
Gunsight 630'HERRON CITY —Strawn —Bryson —Canyon —Atoka —Palo Pinto —Caddo —BUTTRAM —Cisco —

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 (2)

IntervalType
450–462 ftPerforated
452–460 ftPerforated

Casing (1)

SizeSet DepthCement
5.5"490 ft110 sx

Permit History (1)

#847109 Drill Final Completion

EDWARDS 127 · 750 ft

2018-11-29

Spud 2019-02-27

Applications (1)

#847109 A J-LYN OIL CO.
received 2018-11-26

Records & Logs

2 completion filings on record · 1 with log images at RRC.

W-2/G-1 2019-10-20
W-2/G-1 2019-04-13 log on file
Completion packets + logs ↗ Wellbore filings ↗

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.

Google Maps → Explorer Map →
Lat 33.313510
Lon -98.481859

Well Details

Well Number
28
Max Depth
750 ft
Drill Type
Vertical
County
YOUNG
District
9
Operator
MAMMOTH OPERATING LLC
Completed
2019-02-28

Operator

Location
SPICEWOOD
P-5 Status
Active (filed 2025-12-01)
Cum Oil (all leases)
7,282 bbl
Cum Gas (all leases)
— mcf
Activities
OPRS/O
Total Permits
2