42-103-35499

Final Completion

MCKNIGHT M. B.

CRANE County · District 8 · RING ENERGY INC. · SAND HILLS (TUBB)

Permits

Max Depth

6,610 ft

First Permit

2007-11-16

Latest Activity

2009-11-05

Lifespan

2 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2008-02-21

Shut-In

—

Plugged

—

EWA / Permit operator mismatch

Scheduling: RING ENERGY INC. ≠ Permit: DEVON ENERGY PRODUCTION CO, L.P.

Resolved via: production → RING ENERGY, INC.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

PENNZOIL PETROLEUM COMPANY 1993-1995→ PENNZOIL EXPLORATION & PROD. CO. 1995-1999→ PENNZENERGY EXP. & PROD., L.L.C. 1999-2000→ DEVON ENERGY PRODUCTION CO, L.P. 2000-2018→ STRONGHOLD ENERGY II OPER, LLC 2019-2022→ RING ENERGY, INC. 2022-2026

Lease Production

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

Formation Tops (5) Elevation 2,699 ft

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
SAN ANDRES	3,057 ft	-358 ft
TUBB	4,719 ft	-2,020 ft
WICHITA-ALBANY	5,179 ft	-2,480 ft
WOLFCAMP	5,627 ft	-2,928 ft
WADDELL	6,450 ft	-3,751 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 (4)

Interval	Type
3,320–3,336 ft	Perforated
4,725–4,952 ft	Perforated
5,246–5,572 ft	Perforated
5,627–6,325 ft	Perforated

Casing (3)

Size	Set Depth	Cement
8.625"	625 ft	250 sx
8.625"	641 ft	—
5.5"	6,617 ft	840 sx

Permit History (2)

#686947 Recompletion Final Completion

MCKNIGHT, M. B. · 6,610 ft

2009-11-05

Spud 2009-12-11

#649478 Drill Final Completion

MCKNIGHT, M. B. · 6,600 ft

2007-11-16

Spud 2008-01-12

Applications (2)

#686947 A DEVON ENERGY PRODUCTION CO, L.P.

received 2009-11-04

#649478 A DEVON ENERGY PRODUCTION CO, L.P.

received 2007-11-12

Records & Logs

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

W-2/G-1 2010-01-13

W-2/G-1 2010-04-30

W-2/G-1 2008-03-24 log on file

W-2/G-1 2008-04-14

Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library 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 CRANE County.

Well Details

Well Number: 228
Max Depth: 6,610 ft
Drill Type: Vertical
County: CRANE
District: 8
Operator: RING ENERGY INC.
Completed: 2008-02-21

Operator

Name: RING ENGY, INC
Location: MIDLAND
P-5 Status: Active (filed 2026-02-09)
Cum Oil (all leases): 43,768,563 bbl
Cum Gas (all leases): 443,516 mcf
Activities: GTHS/O, OPRS/G, OPRS/O
Total Permits: 977