42-401-34979

SPARKMAN GAS UNIT

RUSK County · District 6 · BUFFCO PRODUCTION INC.

Permits

Max Depth

12,000 ft

First Permit

2008-12-08

Latest Activity

2025-07-24

Lifespan

17 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2009-06

Last Production

2026-07

Operator History

Chain of Custody

ENERVEST OPERATING, L.L.C. 2009-2014→ QUANTUM RESOURCES MANAGEMENT,LLC 2014-2014→ BREITBURN OPERATING L.P. 2015-2020→ MUD CREEK OPERATING, LLC 2020-2024

Lease Production

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

Gas

production & DCA →

Formation Tops (6) Elevation 442 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
TOP MASSIVE ANHIRTE	6,080 ft	-5,638 ft
BTM MASSIVE ANHIRTE	6,223 ft	-5,781 ft
JAMES (James Lime)	6,700 ft	-6,258 ft
PETTET (Pettit)	6,939 ft	-6,497 ft
TRAVIS PEAK	7,287 ft	-6,845 ft
TRAVIS PEAK-A (Travis Peak)	7,301 ft	-6,859 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

✓ 42-401-34845 SPARKMAN GAS UNIT · ENERVEST OPERATING, L.L.C.

0.1 mi

Pettit 6,900'Cotton Valley 9,396'Cotton Valley 9,396'UPPER CV-3 9,839'UW-3 9,839'UPPER CV-5 10,295'UCV-5 10,295'CV TAYLOR MARKER 10,438'CV TAYLOR MKR 10,438'Taylor 10,688'

✓ 42-401-34978 SPARKMAN GAS UNIT · ENERVEST OPERATING, L.L.C.

0.4 mi

TOP MASSIVE ANHIRTE 6,067'BTM MASSIVE ANHIRTE 6,211'James Lime 6,683'Pettit 6,924'Travis Peak 7,272'Travis Peak 7,288'

✓ 42-401-33958 HARRELL GAS UNIT NO. 1 · TANOS EXPLORATION II, LLC

0.6 mi

Rodessa 6,200'Pettit 6,910'Travis Peak 7,260'

✓ 42-401-34705 HARRELL GAS UNIT NO. 2 · TANOS EXPLORATION II, LLC

0.7 mi

ANHYDRITE 5,950'Rodessa 6,225'Rodessa 6,245'James Lime 6,720'Pettit 6,960'Travis Peak 7,310'Taylor 10,500'

✓ 42-401-34751 JARRELL · ENERVEST OPERATING, L.L.C.

0.9 mi

Nacatoch 2,295'Woodbine 3,200'Woodbine 3,200'Woodbine 3,200'Paluxy 4,338'Rodessa 6,329'Pettit 7,013'Pettit 7,013'Travis Peak 7,392'Cotton Valley 9,312'Cotton Valley 9,312'Bossier 10,890'

✓ 42-401-35375 HARRELL GU1-HARRELL GU2 (ALLOC) · TANOS EXPLORATION II, LLC

1.0 mi

Nacatoch 1,990'Paluxy 4,322'Rodessa 6,330'Pettit 6,972'Travis Peak 7,263'Cotton Valley 9,241'Woodbine —

✓ 42-401-34448 HARRELL GAS UNIT NO. 1 · ENERVEST OPERATING, L.L.C.

1.0 mi

Nacatoch 2,000'Woodbine 3,000'Paluxy 4,000'Rodessa 5,000'Pettit 6,000'Travis Peak 7,800'Cotton Valley 9,475'BCVL 9,475'CV TAYLOR 10,515'Bossier 10,833'

✓ 42-401-35387 BLACK STONE FAHLE (ALLOC) · TANOS EXPLORATION II, LLC

1.1 mi

Nacatoch 2,132'Paluxy 4,273'Rodessa 6,395'Pettit 6,984'Travis Peak 7,307'Cotton Valley 9,268'Woodbine —

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 (4)

Interval	Type
10,558–10,561 ft	Perforated
10,566–10,570 ft	Perforated
10,574–10,576 ft	Perforated
10,666–10,670 ft	Perforated

Casing (2)

Size	Set Depth	Cement
9.625"	1,316 ft	600 sx
4.5"	10,835 ft	1,700 sx

Permit History (2)

#909399 Recompletion

SPARKMAN GAS UNIT · 10,835 ft

2025-07-24

#675865 Drill Final Completion

SPARKMAN GAS UNIT · 12,000 ft

2008-12-08

Spud 2009-05-29

Applications (2)

#909399 A BUFFCO PRODUCTION INC.

received 2025-07-23

#675865 A ENERVEST OPERATING, L.L.C.

received 2008-12-04

Records & Logs

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

W-2/G-1 2009-08-11 log on file

W-2/G-1 2009-09-30

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 32.044179

Lon -94.705411

Well Details

Well Number: 4
Max Depth: 12,000 ft
Drill Type: Vertical
County: RUSK
District: 6
Operator: BUFFCO PRODUCTION INC.

Operator

Name: BUFFCO PROD INC
Location: LONGVIEW
P-5 Status: Active (filed 2025-11-14)
Cum Oil (all leases): 10,945,076 bbl
Cum Gas (all leases): 64,034,660 mcf
Activities: CSGD/G, CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
Total Permits: 395