42-135-40740

Final Completion

MILLIE B

ECTOR County · District 8 · FDL OPERATING LLC · SALLIE ANN (SPRABERRY-WOLFCAMP)

Permits

Max Depth

10,500 ft

First Permit

2011-01-18

Latest Activity

2018-08-15

Lifespan

8 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2012-02-07

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: FDL OPERATING LLC ≠ 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

2011-07

Last Production

2026-07

Operator History

Chain of Custody

DEVON ENERGY PRODUCTION CO, L.P. 2011-2016→ FDL OPERATING, LLC 2016-2019→ FIREBIRD ENERGY LLC 2019-2022→ DIAMONDBACK E&P LLC 2022-2026

Lease Production

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

Formation Tops (3) Elevation 2,940 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
CLEAR FORK	6,210 ft	-3,270 ft
SPRABERRY	8,543 ft	-5,603 ft
WOLFCAMP	9,171 ft	-6,231 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

✓ 42-135-42119 MILLIE B · FDL OPERATING, LLC

0.2 mi

Spraberry 7,321'Abo 8,764'Wolfcamp 9,345'Cisco 9,905'

✓ 42-135-41570 MILLIE B · FDL OPERATING, LLC

0.2 mi

Spraberry 6,682'Spraberry 8,489'Wolfcamp 9,105'DARLIN(STRAWN) 9,970'BRADFORD RANCH (ATOKA) 10,090'Strawn 11,008'

✓ 42-135-40626 MILLIE B · FDL OPERATING, LLC

0.3 mi

San Andres 5,096'Spraberry 6,404'Wolfcamp 9,159'Strawn 11,008'

✓ 42-135-40586 MILLIE B · FDL OPERATING, LLC

0.3 mi

San Andres 5,056'Spraberry 8,415'Wolfcamp 9,078'Strawn 11,008'

✓ 42-135-40587 MILLIE B · FDL OPERATING, LLC

0.4 mi

Clear Fork 6,099'Spraberry 8,398'WOLFACMP 9,054'Strawn 9,854'Strawn 11,008'

✓ 42-135-41371 MILLIE B · FDL OPERATING, LLC

0.4 mi

Spraberry 6,678'Clear Fork 7,576'Wolfcamp 9,111'Strawn 11,008'

✓ 42-135-41562 MILLIE B · FDL OPERATING, LLC

0.5 mi

Spraberry 6,632'Spraberry 8,548'Wolfcamp 9,171'Strawn 11,008'

✓ 42-135-42521 MILLIE B (ALLOC) · FDL OPERATING, LLC

0.5 mi

Abo 8,766'Dean 8,960'Wolfcamp 9,147'Wolfcamp 9,282'

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
7,619–9,801 ft	Perforated

Casing (3)

Size	Set Depth	Cement
12.75"	319 ft	140 sx
8.625"	4,850 ft	1,211 sx
5.5"	10,015 ft	840 sx

Permit History (2)

#843505 Field Transfer Final Completion

MILLIE B · 10,500 ft

2018-08-15

Spud 2011-10-21

#708510 Drill Final Completion

MILLIE B · 10,500 ft

2011-01-18

Spud 2011-11-04

Applications (2)

#843505 A FDL OPERATING, LLC

received 2018-08-13

#708510 A DEVON ENERGY PRODUCTION CO, L.P.

received 2011-01-13

Records & Logs

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

W-2/G-1 2012-05-30 log on file

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 31.655885

Lon -102.345863

Well Details

Well Number: 16
Max Depth: 10,500 ft
Drill Type: Vertical
County: ECTOR
District: 8
Operator: FDL OPERATING LLC
Completed: 2012-02-07

Operator

Name: FDL OPER, LLC
Location: JUDSON
P-5 Status: Inactive (filed 2022-10-06)
Cum Oil (all leases): 24,615,023 bbl
Cum Gas (all leases): 271,359,008 mcf
Total Permits: 182