42-321-30908

Final Completion

STATE TRACT 171

MATAGORDA County · District 3 · CHAPARRAL ENERGY L.L.C. · MATAGORDA BAY S (MIOCENE 4100)

Permits

Max Depth

4,800 ft

First Permit

1979-03-08

Latest Activity

2001-03-30

Lifespan

22 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1979-04-27

Shut-In

—

Plugged

2018-08-02

EWA / Permit operator mismatch

Scheduling: CHAPARRAL ENERGY L.L.C. ≠ Permit: MAIN ENERGY, INC.

Resolved via: scheduling → CHAPARRAL ENERGY L.L.C.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2018-08

Operator History

Chain of Custody

MAIN ENERGY, INC. 2001-2008→ CHAPARRAL ENERGY, L.L.C. 2008-2010

Lease Production

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

Formation Tops (1) Elevation 31 ft (KB)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
MIOCENE (Miocene (undifferentiated))	2,800 ft	-2,769 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
2,784–2,789 ft	Perforated
4,040–4,046 ft	Perforated

Casing (6)

Size	Set Depth	Cement
16"	87 ft	—
8.625"	1,030 ft	560 sx
8.625"	1,030 ft	560 sx
2.375"	3,975 ft	—
4.5"	4,657 ft	680 sx
4.5"	4,657 ft	680 sx

Permit History (2)

#506976 Recompletion Final Completion

STATE TRACT 171 · 3,600 ft

2001-03-30

Spud 2001-03-08

#43946 Drill Final Completion

STATE TRACT 171 · 4,800 ft

1979-03-08

Applications (2)

#506976 A MAIN ENERGY, INC.

received 2001-03-26

#43946 A ENSERCH EXPLORATION, INC

received 1979-03-08

Records & Logs

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

W-2/G-1 2001-10-31 log on file

W-2/G-1 2002-01-31

W-2/G-1 1979-05-31

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 MATAGORDA County.

Well Details

Well Number: 4
Max Depth: 4,800 ft
Drill Type: Vertical
County: MATAGORDA
District: 3
Operator: CHAPARRAL ENERGY L.L.C.
Completed: 1979-04-27

Operator

Name: CHAPARRAL ENGY, L.L.C
Location: OKLAHOMA CI, TY
P-5 Status: Delinquent (filed 2025-01-02)
Cum Oil (all leases): 15,903,956 bbl
Cum Gas (all leases): 91,595,701 mcf
Activities: G/PUR, GTHS/G, OPRS/G, OPRS/O
Total Permits: 443