42-427-34767

Final Completion

I.V. MONTALVO C

STARR County · District 4 · KILLAM OIL CO. LTD. · SUN NORTH (VICKSBURG 6410)

Permits

Max Depth

7,500 ft

First Permit

2018-03-28

Latest Activity

2024-08-08

Lifespan

6 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2018-05-11

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2018-05

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 336 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
CATAHOULA-ANAHUAC - INJECTION/DI (Catahoula)	1,270 ft	-934 ft
CATAHOULA-FRIO - INJECTION/DISPO (Catahoula)	3,451 ft	-3,115 ft
VICKSBURG - INJECTION/DISPOSAL; (Vicksburg)	5,865 ft	-5,529 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

✓ 42-427-34747 I.V. MONTALVO 'C' · KILLAM OIL CO., LTD.

0.4 mi

Catahoula 1,275'Catahoula 1,275'Catahoula 3,492'Catahoula 3,492'Vicksburg 5,750'Vicksburg 5,750'Cook Mountain —Miocene (undifferentiated) —Queen City —Wilcox —Yegua —Miocene (undifferentiated) — +1 more

✓ 42-427-34737 I.V. MONTALVO 'C' · KILLAM OIL CO., LTD.

0.5 mi

Catahoula 1,380'Catahoula 3,540'Vicksburg 5,679'Jackson —Queen City —Cook Mountain —Wilcox —Yegua —Miocene (undifferentiated) —

✓ 42-427-34739 I.V. MONTALVO 'C' · KILLAM OIL CO., LTD.

0.5 mi

Catahoula 1,395'Catahoula 1,395'Catahoula 3,560'Catahoula 3,560'Catahoula 3,560'Vicksburg 5,760'Vicksburg 5,760'Miocene (undifferentiated) —Miocene (undifferentiated) —Cook Mountain —Jackson —Wilcox — +2 more

✓ 42-427-34742 I.V. MONTALVO 'C' · KILLAM OIL CO., LTD.

0.6 mi

Catahoula 1,300'Catahoula 1,300'Catahoula 3,662'Catahoula 3,662'Vicksburg 5,820'Vicksburg 5,820'Wilcox —Yegua —Miocene (undifferentiated) —Queen City —Cook Mountain —Jackson —

✓ 42-427-34779 N.R. MONTALVO · KILLAM OIL CO., LTD.

0.7 mi

Catahoula 1,260'Catahoula 3,418'Vicksburg 5,820'Jackson —Queen City —Miocene (undifferentiated) —Cook Mountain —Wilcox —Yegua —

✓ 42-427-34736 I.V. MONTALVO 'C' · KILLAM OIL CO., LTD.

0.7 mi

Catahoula 1,310'Catahoula 1,310'Catahoula 1,310'Frio 3,670'Catahoula 3,670'Catahoula 3,670'Vicksburg 5,680'Vicksburg 5,680'Vicksburg 5,680'Cook Mountain —Miocene (undifferentiated) —Miocene (undifferentiated) — +4 more

✓ 42-427-34766 I.V. MONTALVO 'C' · KILLAM OIL CO., LTD.

0.8 mi

Catahoula 1,314'Catahoula 3,521'Vicksburg 5,780'Jackson —Queen City —Cook Mountain —Miocene (undifferentiated) —Wilcox —Yegua —

✓ 42-427-34751 MONTALVO 'B' UNIT · KILLAM OIL CO., LTD.

0.8 mi

Miocene (undifferentiated) 1,400'Catahoula 3,660'Catahoula 5,600'Vicksburg 8,229'Jackson —Queen City —Cook Mountain —Wilcox —Yegua —

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)

Interval	Type
5,033–5,035 ft	Perforated
6,182–6,186 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	1,156 ft	570 sx
4.5"	6,698 ft	755 sx

Permit History (2)

#901825 Recompletion Final Completion

I.V. MONTALVO 'C' · 5,325 ft

2024-08-08

#838018 Drill Final Completion

I.V. MONTALVO 'C' · 7,500 ft

2018-03-28

Spud 2018-04-20

Applications (2)

#901825 A KILLAM OIL CO., LTD.

received 2024-08-06

#838018 A KILLAM OIL CO., LTD.

received 2018-03-26

Records & Logs

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

W-2/G-1 2024-10-17

W-2/G-1 2018-07-25 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 26.695980

Lon -98.488027

Well Details

Well Number: 56
Max Depth: 7,500 ft
Drill Type: Vertical
County: STARR
District: 4
Operator: KILLAM OIL CO. LTD.
Completed: 2018-05-11

Operator

Name: KILLAM OIL CO., LTD
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