WELL · 42-103-35902 · DISTRICT 8

Millie C #1

N

Crane County · Sallie Ann (Spraberry-Wolfcamp) field  · Vertical

Millie C #1 (API 42-103-35902) is a well in Crane County operated by Firebird Energy LLC, completed May 22, 2012.

The RRC has issued 2 drilling permits between 2011 and 2018, permitted to 10,500 ft.

It was permitted by Fdl Operating, LLC and has since transferred to Firebird Energy LLC on the wellbore schedule.

Completion filings report 4 formation tops, including Spraberry, Clear Fork, Wolfcamp, Strawn.

Its 2 leases have reported 340K barrels of oil and 1.58M mcf of gas since June 2011, last reporting in July 2026. The leases carry 12 wells, so these are lease totals, not this well alone.

Operator of record

Firebird Energy LLC

Permitted by FDL Operating, LLC; the EWA schedule now lists a different operator.

Fort Worth, TX · P-5 Y, filed Mar 4, 2026 · 152 permits on file · (817) 857-7800

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleFirebird Energy LLC
Production reportsDiamondback E&P LLCthrough Apr 2026
Latest permitFDL Operating, LLCAug 22, 2018

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

10,500
total depth, ft
2
permits on file
Aug 22, 2018
last permit issued
May 22, 2012
completed
340K
cumulative oil, bbl
1.58M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jun 2011 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
May 22, 2012
Shut in
—
Plugged
—

Surface location

31.649542, -102.321801

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Crane County.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 12 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Millie C O-10-51381Spraberry (Trend Area)Diamondback E&P LLC638K204KJul 2018 – Jul 2026
Millie C O-10-41592Sallie Ann (Spraberry-Wolfcamp)Firebird Energy LLC6302K1.38MJun 2011 – Jul 2019

Oil, barrels lease total

Last 12 months 2,850 · prior 12 2,840(+0%)

0200400600202420252026

Gas, mcf lease total

Last 12 months 12,569 · prior 12 13,429(-6%)

02K4K202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Devon Energy Production Co, L.P.Jul 2011 → Jul 2016
  2. 2FDL Operating, LLCAug 2016 → Jun 2019
  3. 3Firebird Energy LLCJul 2019 → Nov 2022
  4. 4Diamondback E&P LLCDec 2022 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
843829-99Field transferFDL Operating, LLCAug 21, 2018Aug 22, 2018Feb 9, 201210,500
727148-99DrillDevon Energy Production Co, L.P.Oct 27, 2011Nov 1, 2011Feb 6, 201210,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-41592————
—— O-10-51381————

Formation tops

As filed on W-2/G-1. Subsea from 2,915 ft elevation.Download CSV →

FormationMD ftSubsea
SpraberryUPPER SPRABERRY6,299-3,384
Clear Fork7,578-4,663
Clear ForkCLEARFORK7,578-4,663
Wolfcamp9,049-6,134
Strawn11,008-8,093

Perforations

Perforated and open-hole intervals.

FromToType
7,58010,026Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
12.7532714.75140 S
8.6254,705111,178 S
5.510,1657.875878 S

Completion filings

W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →

SuffixFiledW-2 / G-1 dateLogs referenced
00Sep 30, 2019Jun 30, 2019—
00May 28, 2019Apr 29, 2019Yes
00Jan 23, 2014Aug 2, 2012Yes

The source documents

Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.

Nearby wells and their tops

NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM

Draw a cross-section

This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

Millie C42-103-36088

0.4 KM · FDL Operating, LLC · Section with this well →

San Andres4,754-1,829
Spraberry6,483-3,558
Clear Fork7,585-4,660
Wolfcamp9,111-6,186
Strawn10,125-7,200

Millie C42-135-42178

0.4 KM · FDL Operating, LLC · Section with this well →

San Andres4,816-1,900
Spraberry6,502-3,586
Spraberry8,448-5,532
Wolfcamp9,114-6,198
Strawn10,198-7,282

Millie D42-461-37996

0.5 KM · FDL Operating, LLC · Section with this well →

Abo8,713-5,806
Wolfcamp9,519-6,612
Cisco9,953-7,046
Strawn11,008-8,101

Millie C42-135-40635

0.6 KM · FDL Operating, LLC · Section with this well →

San Andres5,094-2,172
Spraberry8,462-5,540
Wolfcamp9,105-6,183
Strawn11,008-8,086

Millie C42-103-35764

0.6 KM · FDL Operating, LLC · Section with this well →

San Andres5,083-2,163
Spraberry6,401-3,481
Wolfcamp9,094-6,174
Atoka10,888-7,968
Yates—
Seven Rivers—
San Angelo—
San Andres—

14 TOPS · FIRST 8

Millie D42-135-41351

0.7 KM · FDL Operating, LLC · Section with this well →

Clear Fork5,582-2,672
Spraberry8,474-5,564
Wolfcamp9,305-6,395
Strawn11,008-8,098

Four Corners 1729 B42-135-43881

0.9 KM · Firebird Energy LLC · Section with this well →

Yates3,053-122
Seven Rivers3,333-402
Queen3,394-463
Grayburg3,882-951
San Andres5,052-2,121
Glorieta6,053-3,122
Clear Fork7,098-4,167
Tubb—

10 TOPS · FIRST 8

Four Corners 1729 A42-135-43880

0.9 KM · Firebird Energy LLC · Section with this well →

Yates3,053-122
Seven Rivers3,321-390
Queen3,394-463
Grayburg3,882-951
San Andres5,052-2,121
Glorieta6,076-3,145
Clear Fork7,063-4,132
Santa Rosa—

10 TOPS · FIRST 8

About this data

Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.

New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease

Developers: this page as JSON is GET /v1/data/wells/10335902, documented in the API reference.