42-133-31591

Final Completion

JAN-SAN 21

EASTLAND County · District 7 · BYRNE OIL COMPANY · REB (MARBLE FALLS)

Permits

Max Depth

3,913 ft

First Permit

1978-09-21

Latest Activity

1982-07-23

Lifespan

4 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1982-10-14

Shut-In

—

Plugged

2008-02-19

EWA / Permit operator mismatch

Scheduling: BYRNE OIL COMPANY ≠ Permit: SLEDGE, H. G.

Resolved via: scheduling → BYRNE OIL COMPANY

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2008-02

Operator History

Chain of Custody

SLEDGE, H. G., INC. 1993-1994→ BYRNE, ROBERT E. 1994-2004→ BYRNE OIL COMPANY 2006-2007

Lease Production

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

Formation Tops (3) Elevation 1,603 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
CADDO	3,205 ft	-1,602 ft
MARBLE FALLS	3,510 ft	-1,907 ft
DUFFER	3,824 ft	-2,221 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
3,512–3,536 ft	Perforated
3,828–3,835 ft	Perforated

Casing (5)

Size	Set Depth	Cement
8.625"	257 ft	150 sx
8.625"	320 ft	200 sx
2.375"	3,550 ft	—
2.375"	3,807 ft	—
4.5"	3,913 ft	350 sx

Permit History (2)

#166933 Recompletion Final Completion

JAN-SAN "21" · 3,912 ft

1982-07-23

#33154 Drill

JAN-SAN 21 · 3,913 ft

1978-09-21

Spud 1978-09-29

Applications (2)

#166933 A SLEDGE, H. G.

received 1982-07-23

#33154 A JOY PETROLEUM CORP.

received 1978-09-21

Records & Logs

4 completion filings on record.

W-2/G-1 2006-07-10

W-2/G-1 2006-08-17

W-2/G-1 1982-10-15

W-2/G-1 1978-11-02

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 EASTLAND County.

Well Details

Well Number: 1
Max Depth: 3,913 ft
Drill Type: Vertical
County: EASTLAND
District: 7
Operator: BYRNE OIL COMPANY
Completed: 1982-10-14

Operator

Name: BYRNE OIL CO
Location: LUBBOCK
P-5 Status: Active (filed 2025-12-10)
Cum Oil (all leases): 198,507 bbl
Cum Gas (all leases): 522,884 mcf
Activities: OPRS/G, OPRS/O
Total Permits: 42