42-427-34762

I.V. MONTALVO A

STARR County · District 4 · KILLAM OIL CO. LTD. · SUN NORTH (6340)

Permits

4

Max Depth

8,000 ft

First Permit

2017-11-13

Latest Activity

2026-02-20

Lifespan

8 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2018-01-10

Shut-In

Plugged

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2018-01

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 (9) Elevation 354 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
CATAHOULA-ANAHUAC - INJECTION/DI (Catahoula)1,220 ft-866 ft
CATAHOULA-FRIO - INJECTION/DISPO (Catahoula)3,399 ft-3,045 ft
VICKSBURG - INJECTION/DISPOSAL; (Vicksburg)5,753 ft-5,399 ft
COOK MOUNTAIN
JACKSON - INJECTION/DISPOSAL (Jackson)
MIOCENE-LAGARTO-OAKVILLE - INJEC (Miocene (undifferentiated))
QUEEN CITY - INJECTION/DISPOSAL (Queen City)
WILCOX
YEGUA

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
42-427-34817 MONTALVO, N. R. · TRIAD O&G, LLC
0.3 mi
Miocene (undifferentiated) 8'Catahoula 1,212'Catahoula 3,220'Vicksburg 5,480'Cook Mountain Yegua Wilcox Queen City Jackson
42-427-34779 N.R. MONTALVO · KILLAM OIL CO., LTD.
0.9 mi
Catahoula 1,260'Catahoula 3,418'Vicksburg 5,820'Cook Mountain Miocene (undifferentiated) Jackson Wilcox Yegua Queen City
42-427-34767 I.V. MONTALVO 'C' · KILLAM OIL CO., LTD.
1.1 mi
Catahoula 1,270'Catahoula 3,451'Vicksburg 5,865'Cook Mountain Jackson Wilcox Yegua Miocene (undifferentiated) Queen City
42-427-34751 MONTALVO 'B' UNIT · KILLAM OIL CO., LTD.
1.2 mi
Miocene (undifferentiated) 1,400'Catahoula 3,660'Catahoula 5,600'Vicksburg 8,229'Queen City Yegua Jackson Wilcox Cook Mountain
42-427-34737 I.V. MONTALVO 'C' · KILLAM OIL CO., LTD.
1.3 mi
Catahoula 1,380'Catahoula 3,540'Vicksburg 5,679'Cook Mountain Yegua Miocene (undifferentiated) Queen City Jackson Wilcox
42-427-34747 I.V. MONTALVO 'C' · KILLAM OIL CO., LTD.
1.3 mi
Catahoula 1,275'Catahoula 1,275'Catahoula 3,492'Catahoula 3,492'Vicksburg 5,750'Vicksburg 5,750'Miocene (undifferentiated) Cook Mountain Jackson Wilcox Yegua Queen City +1 more
42-427-34739 I.V. MONTALVO 'C' · KILLAM OIL CO., LTD.
1.5 mi
Catahoula 1,395'Catahoula 1,395'Catahoula 3,560'Catahoula 3,560'Catahoula 3,560'Vicksburg 5,760'Vicksburg 5,760'Jackson Wilcox Yegua Miocene (undifferentiated) Queen City +2 more
42-427-34773 GEO. H. SPEER · KILLAM OIL CO., LTD.
1.6 mi
Catahoula 1,190'Catahoula 3,250'Vicksburg 5,602'Wilcox Yegua Queen City Jackson Cook Mountain Miocene (undifferentiated)

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 (10)

IntervalType
4,928–4,933 ftPerforated
5,024–5,027 ftPerforated
5,296–5,301 ftPerforated
5,337–5,340 ftPerforated
5,616–5,618 ftPerforated
5,620–5,623 ftPerforated
5,627–5,630 ftPerforated
5,864–5,867 ftPerforated
5,888–5,891 ftPerforated
6,264–6,268 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"1,152 ft415 sx
4.5"6,484 ft685 sx

Permit History (4)

Applications (4)

#913510 A KILLAM OIL CO., LTD.
received 2026-02-13
#901123 A KILLAM OIL CO., LTD.
received 2024-07-08
#839693 A KILLAM OIL CO., LTD.
received 2018-05-07
#832882 A KILLAM OIL CO., LTD.
received 2017-11-07

Records & Logs

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

W-2/G-1 2026-03-04
W-2/G-1 2026-02-23
W-2/G-1 2025-04-29
W-2/G-1 2019-10-18 log on file
W-2/G-1 2018-07-27
W-2/G-1 2018-05-17

+2 more 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.

Lat 26.681035
Lon -98.492583

Well Details

Well Number
20
Max Depth
8,000 ft
Drill Type
Vertical
County
STARR
District
4
Completed
2018-01-10

Operator

Location
LAREDO
P-5 Status
Active (filed 2026-04-09)
Cum Oil (all leases)
8,614,650 bbl
Cum Gas (all leases)
564,764,653 mcf
Activities
CSGD/P, G/PUR, OPRS/G, OPRS/O
Total Permits
832