42-317-35273

Final Completion

ANN COLE TRUST

MARTIN County · District 8 · R K PETROLEUM CORP. · RK (STRAWN)

Permits

Max Depth

12,100 ft

First Permit

2008-06-03

Latest Activity

2013-08-16

Lifespan

5 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2009-02-15

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: R K PETROLEUM CORP. ≠ Production: DIAMONDBACK E&P LLC (reported 2026-04)

Resolved via: production → DIAMONDBACK E&P LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2009-02

Last Production

2026-07

Operator History

Chain of Custody

R K PETROLEUM CORP. 2009-2016→ QEP ENERGY COMPANY 2016-2021→ DIAMONDBACK E&P LLC 2021-2026

Lease Production

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

Formation Tops (7) Elevation 2,849 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
YATES	2,662 ft	+187 ft
CLEARFORK (Clear Fork)	6,307 ft	-3,458 ft
SPRABERRY	7,646 ft	-4,797 ft
U/SPRABERRY	7,646 ft	-4,797 ft
STRAWN	10,670 ft	-7,821 ft
WOODFORD SH (Woodford)	11,656 ft	-8,807 ft
DEVONIAN	11,754 ft	-8,905 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 (12)

Interval	Type
8,050–8,131 ft	Perforated
8,430–8,593 ft	Perforated
8,868–8,908 ft	Perforated
9,024–9,098 ft	Perforated
9,150–9,261 ft	Perforated
9,302–9,385 ft	Perforated
9,526–9,612 ft	Perforated
9,758–9,829 ft	Perforated
10,221–10,332 ft	Perforated
10,470–10,576 ft	Perforated
10,721–10,781 ft	Perforated
10,722–10,781 ft	Perforated

Casing (4)

Size	Set Depth	Cement
13.375"	335 ft	385 sx
8.625"	4,291 ft	400 sx
4.5"	11,960 ft	755 sx
4.5"	11,960 ft	1,190 sx

Permit History (2)

#768000 Recompletion Final Completion

ANN COLE TRUST · 12,100 ft

2013-08-16

Spud 2013-08-13

#661713 Drill Final Completion

ANN COLE TRUST · 12,100 ft

2008-06-03

Spud 2008-10-24

Applications (2)

#768000 A R K PETROLEUM CORP.

received 2013-08-09

#661713 A R K PETROLEUM CORP.

received 2008-05-12

Records & Logs

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

W-2/G-1 2013-11-26 log on file

W-2/G-1 2009-03-09 log on file

W-2/G-1 2009-04-16

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 MARTIN County.

Well Details

Well Number: 1
Max Depth: 12,100 ft
Drill Type: Vertical
County: MARTIN
District: 8
Operator: R K PETROLEUM CORP.
Completed: 2009-02-15

Operator

Name: R K PETRO CORP
Location: MIDLAND
P-5 Status: Active (filed 2026-01-08)
Cum Oil (all leases): 18,378,032 bbl
Cum Gas (all leases): 1,326,267 mcf
Total Permits: 529