42-485-45222

DOUGLAS MINERAL TRUST G

WICHITA County · District 9 · EXTEX OPERATING COMPANY

Permits

Max Depth

4,800 ft

First Permit

2012-03-07

Latest Activity

2014-07-15

Lifespan

2 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2012-06

Last Production

2026-07

Injection / Disposal

H-1 Injection Inactive UIC #000110179 permitted 2014-06-10

Permitted Volume

2,000 bbl/d

Max Pressure

1,900 psi

Injection Interval

3,800–4,000 ft

Injected (12mo)

—

Monthly injected volume (bbl, from H-10 filings through 2025-04-01)

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 (3) Elevation 1,028 ft (KB)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
GUNSITE	1,930 ft	-902 ft
CASH (STRAWN 3820)	3,816 ft	-2,788 ft
ELLENBURGER	4,425 ft	-3,397 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 (1)

Interval	Type
4,502–4,520 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	84 ft	75 sx
5.5"	4,590 ft	475 sx

Permit History (2)

#787065 Recompletion

DOUGLAS MINERAL TRUST G · 4,800 ft

2014-07-15

#735253 Drill Final Completion

DOUGLAS MINERAL TRUST G · 4,800 ft

2012-03-07

Spud 2012-03-07

Applications (2)

#787065 A EXTEX OPERATING COMPANY

received 2014-05-14

#735253 A EXTEX OPERATING COMPANY

received 2012-03-05

Records & Logs

1 completion filing on record · 1 with log images at RRC.

W-2/G-1 2012-10-02 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.

No GPS coordinates yet

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

Well Details

Well Number: 16
Max Depth: 4,800 ft
Drill Type: Vertical
County: WICHITA
District: 9
Operator: EXTEX OPERATING COMPANY

Operator

Name: EXTEX OPER CO
Location: HOUSTON
P-5 Status: Active (filed 2026-01-07)
Cum Oil (all leases): 5,887,486 bbl
Cum Gas (all leases): 10,031,045 mcf
Activities: OPRS/G, OPRS/O
Total Permits: 117