42-013-34038

SARAH E. FERRY UNIT

ATASCOSA County · District 1 · TANDEM ENERGY CORPORATION

Permits

Max Depth

8,800 ft

First Permit

1995-04-25

Latest Activity

2008-12-08

Lifespan

14 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1995-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Plugged 2008-02-08 UIC #000083959 permitted 1995-12-14

Permitted Volume

1,000 bbl/d

Max Pressure

4,000 psi

Injection Interval

8,154–8,168 ft

Injected (12mo)

—

Operator History

Chain of Custody

WATERS ENG. & OPERATING, INC. 1995-1998→ GARRISON LTD. 2000-2000→ EXCALIBUR E & P, LLC 2003-2004→ REC WELL SERVICE, INC. 2005-2005

Lease Production

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

Formation Tops (6) Elevation 359 ft

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
T/CARRIZO (WILCOX) SD	2,150 ft	-1,791 ft
B/CARRIZO (WILCOX)SD	2,600 ft	-2,241 ft
ESCONDIDO SD (Escondido)	5,810 ft	-5,451 ft
BUDA LS (Buda)	7,800 ft	-7,441 ft
GEORGETOWN LS (Georgetown)	7,950 ft	-7,591 ft
EDWARDS LS (Edwards)	8,092 ft	-7,733 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
8,154–8,168 ft	Perforated

Casing (3)

Size	Set Depth	Cement
8.625"	2,018 ft	748 sx
5.5"	8,797 ft	760 sx
5.5"	—	760 sx

Permit History (2)

#675211 Reenter

SARAH E. FERRY UNIT · 8,800 ft

2008-12-08

#435196 Drill Final Completion

SARAH E. FERRY UNIT "13" · 8,800 ft

1995-04-25

Spud 1995-06-06

Applications (2)

#675211 A TANDEM ENERGY CORPORATION

received 2008-11-19

#435196 A WATERS ENG. & OPERATING, INC.

received 1995-04-25

Records & Logs

8 completion filings on record · 1 with log images at RRC.

W-2/G-1 2007-07-13

W-2/G-1 2007-06-18

W-2/G-1 2000-09-11

W-2/G-1 1997-05-30

W-2/G-1 1995-08-14 log on file

W-2/G-1 1995-08-11

+2 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 ATASCOSA County.

Well Details

Well Number: 3
Max Depth: 8,800 ft
Drill Type: Vertical
County: ATASCOSA
District: 1
Operator: TANDEM ENERGY CORPORATION

Operator

Name: TANDEM ENGY CORP
Location: HOUSTON
P-5 Status: Active (filed 2025-07-10)
Cum Oil (all leases): 3,731,968 bbl
Cum Gas (all leases): 10,685,287 mcf
Activities: OPRS/G, OPRS/O
Total Permits: 138