42-115-32204

Final Completion

GRISSOM

DAWSON County · District 8 · EXTEX OPERATING COMPANY · DEROEN (MISSISSIPPIAN)

Permits

Max Depth

10,650 ft

First Permit

1985-05-02

Latest Activity

2023-04-28

Lifespan

38 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1985-07-19

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: EXTEX OPERATING COMPANY ≠ Production: CHOLLA PETROLEUM, INC. (reported 2023-01)

EWA / Permit operator mismatch

Scheduling: EXTEX OPERATING COMPANY ≠ Permit: CHOLLA PETROLEUM, INC.

Resolved via: scheduling → EXTEX OPERATING COMPANY

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

ELAND ENERGY, INC. 1993-2013→ THREE RIVERS OPERATING CO II LLC 2013-2017→ CHOLLA PETROLEUM, INC. 2017-2023

Lease Production

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

Formation Tops (3) Elevation 2,908 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
MISSISSIPPIAN	6,654 ft	-3,746 ft
SPRABERRY	6,654 ft	-3,746 ft
PENN (Pennsylvanian)	8,565 ft	-5,657 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

✓ 42-115-33408 JETER 34 · SDX RESOURCES, INC.

1.3 mi

U. SPRABERRY 6,730'Wolfcamp 8,120'Pennsylvanian 8,460'

✓ 42-115-33770 JETER 27 · SDX RESOURCES, INC.

1.8 mi

Yates 2,090'San Andres 3,705'Spraberry 6,806'Dean 8,098'Wolfcamp 8,200'Canyon 8,565'Pennsylvanian 8,592'Mississippian 10,416'Devonian —Silurian (undifferentiated) —

✓ 42-115-33783 JO-MILL WEST UNIT · ESTANCIA OIL & GAS, LLC

3.3 mi

San Andres 3,500'Spraberry 6,570'Mississippian —Silurian (undifferentiated) —Dean —Devonian —Pennsylvanian —Wolfcamp —Canyon —Yates —

✓ 42-115-33757 HEALD 47 · PETROPLEX ENERGY INC.

3.3 mi

Jo Mill 7,532'Dean —Mississippian —Devonian —Pennsylvanian —Wolfcamp —Canyon —Yates —Spraberry —San Andres —

✓ 42-115-33782 JO-MILL WEST UNIT · ESTANCIA OIL & GAS, LLC

3.5 mi

San Andres 3,500'Spraberry 6,570'Pennsylvanian —Silurian (undifferentiated) —Wolfcamp —Canyon —Yates —Mississippian —Devonian —Dean —

✓ 42-115-33892 HAWKINS · HALVEY ENERGY, LLC

3.9 mi

Yates 2,510'San Andres 4,170'Spraberry 6,752'Wolfcamp —Silurian (undifferentiated) —Dean —Mississippian —Devonian —Pennsylvanian —Canyon —

✓ 42-033-32285 CANON RANCH UNIT · RELENTLESS PERMIAN OPERATING LLC

4.5 mi

Grayburg 3,050'San Andres 3,268'Spraberry 7,230'

✓ 42-033-32309 CANON RANCH UNIT · RELENTLESS PERMIAN OPERATING LLC

4.8 mi

Santa Rosa 671'Rustler 1,377'Yates 1,940'San Andres 3,268'Clear Fork 4,372'Leonard 6,027'Spraberry 6,252'Wolfcamp —Wichita-Albany —Cisco —

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 (1)

Interval	Type
7,651–7,671 ft	Perforated

Casing (3)

Size	Set Depth	Cement
13.375"	396 ft	420 sx
9.625"	3,707 ft	750 sx
5.5"	10,650 ft	600 sx

Permit History (2)

#890080 Recompletion Final Completion

GRISSOM · 10,650 ft

2023-04-28

Spud 2023-03-14

#273958 Drill Final Completion

GRISSOM · 10,400 ft

1985-05-02

Spud 1985-05-17

Applications (2)

#890080 A CHOLLA PETROLEUM, INC.

received 2023-04-25

#273958 A IMC EXPLORATON CO.

received 1985-02-14

Records & Logs

2 completion filings on record.

W-2/G-1 2023-05-01

W-2/G-1 1985-08-27

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.

Google Maps → Explorer Map →

Lat 32.712456

Lon -101.758106

Well Details

Well Number: 1
Max Depth: 10,650 ft
Drill Type: Vertical
County: DAWSON
District: 8
Operator: EXTEX OPERATING COMPANY
Completed: 1985-07-19

Operator

Name: EXTEX OPER CO
Location: HOUSTON
P-5 Status: Active (filed 2026-01-07)
Cum Oil (all leases): 5,887,486 bbl
Cum Gas (all leases): 10,031,045 mcf
Activities: OPRS/G, OPRS/O
Total Permits: 117