42-131-34958

Final Completion

DUVAL RANCH SEC. #203

DUVAL County · District 4 · KILLAM OIL CO. LTD. · PIEDRE LUMBRE

Permits

Max Depth

2,400 ft

First Permit

1980-08-18

Latest Activity

1981-04-07

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1981-05-13

Shut-In

—

Plugged

2010-05-13

EWA / Permit operator mismatch

Scheduling: KILLAM OIL CO. LTD. ≠ Permit: MOBIL PRODUCING TX. & N.M. INC.

Resolved via: production → KILLAM OIL CO., LTD.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

W-14 Disposal Plugged 2010-05-24 UIC #000044137 permitted 1981-04-17

Permitted Volume

2,000 bbl/d

Max Pressure

900 psi

Injection Interval

1,868–1,898 ft

Injected (12mo)

—

Operator History

Chain of Custody

DUNIGAN PETROLEUM, INC. 1993-1993→ KILLAM OIL COMPANY 1994-1994→ KILLAM OIL CO., LTD. 1994-2026

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 (2) Elevation 430 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
CHERNOSKY	1,298 ft	-868 ft
COLE	1,759 ft	-1,329 ft

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 ↗

Perforations (2)

Interval	Type
1,403–1,410 ft	Perforated
1,868–1,898 ft	Perforated

Casing (5)

Size	Set Depth	Cement
5.5"	1,256 ft	245 sx
5.5"	1,256 ft	—
2.375"	1,395 ft	—
2.375"	1,827 ft	—
5.5"	2,356 ft	390 sx

Permit History (2)

#114129 Recompletion Final Completion

DUVAL RANCH SEC. 203 · 2,118 ft

1981-04-07

#91544 Drill U

DUVAL RANCH SEC. 203 · 2,400 ft

1980-08-18

Applications (2)

#114129 A MOBIL PRODUCING TX. & N.M. INC.

received 1981-04-07

#91544 A MOBIL PRODUCING TX. & N.M. INC.

received 1980-08-18

Records & Logs

4 completion filings on record.

W-2/G-1 1987-08-14

W-2/G-1 1983-10-14

W-2/G-1 1981-01-12

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.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in DUVAL County.

Well Details

Well Number: 40D
Max Depth: 2,400 ft
Drill Type: Vertical
County: DUVAL
District: 4
Operator: KILLAM OIL CO. LTD.
Completed: 1981-05-13

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: 837