42-499-00722

Final Completion

BLALOCK G. R. UNIT

WOOD County · District 6 · SUN EXPL. & PROD. CO.-LONGVIEW · QUITMAN (RODESSA)

Permits

Max Depth

8,392 ft

First Permit

1986-03-14

Latest Activity

2003-01-31

Lifespan

17 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1957-12-21

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: SUN EXPL. & PROD. CO.-LONGVIEW ≠ Production: SOUTHWEST OPERATING, INC.-TYLER (reported 2026-01)

EWA / Permit operator mismatch

Scheduling: SUN EXPL. & PROD. CO.-LONGVIEW ≠ Permit: NOBLE & CANTRELL EXPL. CO., INC.

Resolved via: scheduling → SUN EXPL. & PROD. CO.-LONGVIEW

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Cancelled 2005-11-14 UIC #000082811 permitted 1992-08-11

Permitted Volume

1,500 bbl/d

Max Pressure

1,500 psi

Injection Interval

8,163–8,260 ft

Injected (12mo)

—

Operator History

Chain of Custody

NOBLE & CANTRELL EXPL. CO., INC. 2003-2006→ 5-N ENERGY 2006-2006→ SHILOH OPERATING LLC 2006-2007→ SOUTHWEST OPERATING, INC.-TYLER 2007-2026

Lease Production

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

Formation Tops (2) Elevation 455 ft (KB)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
GLEN ROSE, UP. (Glen Rose)	7,276 ft	-6,821 ft
RODESSA GLOYD (Rodessa)	8,173 ft	-7,718 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 (7)

Interval	Type
7,280–7,290 ft	Perforated
8,173–8,177 ft	Perforated
8,173–8,213 ft	Perforated
8,209–8,213 ft	Perforated
8,250–8,260 ft	Perforated
8,273–8,280 ft	Perforated
8,316–8,326 ft	Perforated

Casing (5)

Size	Set Depth	Cement
10.75"	813 ft	—
10.75"	813 ft	—
7"	8,383 ft	—
7"	8,392 ft	—
7"	8,392 ft	—

Permit History (3)

#527941 Recompletion Final Completion

BLALOCK, G. R. · 8,385 ft

2003-01-31

Spud 2003-02-03

#398207 Recompletion Final Completion

BLALOCK, G. R. · 8,385 ft

1992-06-16

Spud 1991-10-08

#299610 Recompletion Final Completion

BLALOCK, G. R. · 8,392 ft

1986-03-14

Applications (3)

#527941 A NOBLE & CANTRELL EXPL. CO., INC.

received 2003-01-31

#398207 A SAMSON RESOURCES COMPANY

received 1992-04-08

#299610 A SUN EXPL. & PROD. CO.-LONGVIEW

received 1986-03-12

Records & Logs

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

W-2/G-1 2003-03-17 log on file

W-2/G-1 2001-04-06

W-2/G-1 1994-08-01

W-2/G-1 1986-06-10 log on file

W-2/G-1 1986-08-08

+1 more filings

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 WOOD County.

Well Details

Well Number: 2
Max Depth: 8,392 ft
Drill Type: Vertical
County: WOOD
District: 6
Operator: SUN EXPL. & PROD. CO.-LONGVIEW
Completed: 1957-12-21

Operator

Name: SUN EXPL. & PROD. CO.-LONGVIEW
Location: HOUSTON
P-5 Status: Inactive
Total Permits: 88