42-175-31196

Final Completion

DARWIN DUDERSTADT

GOLIAD County · District 2 · OLIPDP II LLC · BRANDT (2750)

Permits

Max Depth

5,400 ft

First Permit

1979-02-16

Latest Activity

2018-03-22

Lifespan

39 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2019-07-18

Shut-In

—

Plugged

2023-11-13

EWA / Permit operator mismatch

Scheduling: OLIPDP II LLC ≠ Permit: UNIT PETROLEUM COMPANY

Resolved via: scheduling → OLIPDP II LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Plugged 2023-11-28 UIC #000078954 permitted 2018-03-13

Permitted Volume

2,500 bbl/d

Max Pressure

1,000 psi

Injection Interval

2,420–3,600 ft

Injected (12mo)

—

Monthly injected volume (bbl, from H-10 filings through 2023-11-01)

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

Operator History

originally filed by UNIT PETROLEUM COMPANY — asset transferred

Lease Production

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

Formation Tops (6) Elevation 274 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
FRIO	2,500 ft	-2,226 ft
CATAHOULA	2,620 ft	-2,346 ft
VICKSBURG	3,000 ft	-2,726 ft
FRIO (SALTWATER ZONE) (Frio)	3,250 ft	-2,976 ft
BRANDT(YEGUA)	4,755 ft	-4,481 ft
COOK MOUNTAIN	5,174 ft	-4,900 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 ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section

✓ 42-175-34258 ENGEL GAS UNIT · UNIT PETROLEUM COMPANY

0.7 mi

Frio 3,350'Yegua 4,650'Reklaw 7,460'Wilcox 7,720'Vicksburg —Catahoula —

✓ 42-175-34246 ENGEL · UNIT PETROLEUM COMPANY

0.9 mi

Frio 3,350'Yegua 4,650'Reklaw 7,460'Wilcox 7,720'Catahoula —Vicksburg —

✓ 42-175-34259 ALBRECHT · UNIT PETROLEUM COMPANY

1.0 mi

Frio 3,250'Catahoula 3,620'Yegua 4,800'Vicksburg 5,000'Wilcox 7,690'

✓ 42-175-34250 KARNEI, NORMAN · SPRI OIL & GAS, LLC

1.8 mi

Frio 2,500'Catahoula 2,620'Vicksburg 3,000'

✓ 42-175-33571 ALBRECHT · HURD ENTERPRISES, LTD.

2.1 mi

Frio 1,837'Vicksburg 2,968'Jackson 3,265'PETTUS 4,448'Yegua 4,546'Cook Mountain 4,968'Wilcox 7,660'RECKLAW 7,772'SLICK 8,067'Wilcox 10,300'

✓ 42-175-34271 WORLEY · RAVEN FOREST OPERATING, LLC

4.3 mi

Catahoula 1,184'Frio 2,629'Vicksburg 3,169'

✓ 42-175-34256 WORLEY · ALTA MESA SERVICES, LP

4.4 mi

Catahoula 1,500'Frio 2,140'Vicksburg 3,420'

✓ 42-175-34267 WORLEY · RAVEN FOREST OPERATING, LLC

4.4 mi

Catahoula 1,184'Frio 2,629'Vicksburg 3,169'

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 (6)

Interval	Type
3,270–3,330 ft	Perforated
4,755–4,761 ft	Perforated
4,755–4,795 ft	Perforated
4,775–4,779 ft	Perforated
4,783–4,795 ft	Perforated
5,174–5,187 ft	Perforated

Casing (3)

Size	Set Depth	Cement
8.625"	412 ft	160 sx
2.375"	4,700 ft	—
4.5"	5,361 ft	905 sx

Permit History (2)

#837836 Recompletion Final Completion

DARWIN DUDERSTADT · 5,400 ft

2018-03-22

Spud 2018-03-14

#42652 Drill F

DUDERSTADT, DARWIN · 5,300 ft

1979-02-16

Applications (2)

#837836 A UNIT PETROLEUM COMPANY

received 2018-03-21

#42652 A RAIDER OIL CORP.

received 1979-02-16

Records & Logs

5 completion filings on record.

W-2/G-1 2020-02-28

W-2/G-1 2018-04-11

W-2/G-1 1993-08-25

W-2/G-1 1993-04-28

W-2/G-1 1979-04-11

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 28.885445

Lon -97.397357

Well Details

Well Number: 1
Max Depth: 5,400 ft
Drill Type: Vertical
County: GOLIAD
District: 2
Operator: OLIPDP II LLC
Completed: 2019-07-18

Operator

Name: OLIPDP II, LLC
Location: LAFAYETTE
P-5 Status: Active (filed 2026-05-18)
Cum Oil (all leases): 951,662 bbl
Cum Gas (all leases): 23,183,528 mcf
Activities: OPRS/G, OPRS/O